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WO2014006671A1 - Filter element for dust collectors - Google Patents

Filter element for dust collectors Download PDF

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Publication number
WO2014006671A1
WO2014006671A1 PCT/JP2012/066877 JP2012066877W WO2014006671A1 WO 2014006671 A1 WO2014006671 A1 WO 2014006671A1 JP 2012066877 W JP2012066877 W JP 2012066877W WO 2014006671 A1 WO2014006671 A1 WO 2014006671A1
Authority
WO
WIPO (PCT)
Prior art keywords
retainer
filter element
filter medium
dust collector
pleated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/066877
Other languages
French (fr)
Japanese (ja)
Inventor
眞司 片山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
J&S ENGINEERING Co Ltd
Original Assignee
J&S ENGINEERING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by J&S ENGINEERING Co Ltd filed Critical J&S ENGINEERING Co Ltd
Priority to PCT/JP2012/066877 priority Critical patent/WO2014006671A1/en
Publication of WO2014006671A1 publication Critical patent/WO2014006671A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B01D46/2414—End caps including additional functions or special forms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/04—Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/06—Details of supporting structures for filtering material, e.g. cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/208—Oval shape

Definitions

  • the present invention relates to a filter element for a dust collector.
  • the present invention relates to a structure of a filter element for a dust collector suitable for filtering dust supplied to a dust collector and collecting the dust.
  • surplus paint mist is generated in a painting booth for painting the body of an automobile.
  • a dust collector is installed, and the paint mist is supplied to a dust collector having a filter disposed therein, and is filtered by collecting paint particles with the filter. Since these paint particles have strong adhesion, they were adsorbed on the precoat material and filtered.
  • a dust collector filter for filtering paint mist, dry powder such as calcium carbonate is generated inside the dust collector and sucked, so that the dry powder as a precoat material is attached to the surface of the filter in advance.
  • a dust collector filter is known in which paint particles are adsorbed by a precoat material by sucking paint mist to prevent clogging of the filter (see, for example, Patent Document 1).
  • the filter for the dust collector as described above can remove the precoat material containing the paint particles from the surface of the filter by so-called back washing by blowing jet air from the direction opposite to the dust collecting direction.
  • a precoat material containing paint particles can be reused as a resource mixed in concrete.
  • Cylindrical filter elements are known as filter elements used in such industrial dust collectors.
  • the cylindrical filter element is composed of a cylindrical retainer (support frame) with one end closed and the other end opened, and a filter cloth (pleated filter cloth) folded in a triangular wave shape covering the outer periphery of the retainer. is doing.
  • the cylindrical filter element described above generates pre-coating material in the dust collector and sucks it, so that the pre-coating material is attached in advance to the surface of the pleated filter cloth, and the paint mist is sucked into the paint particles. Is adsorbed by the precoat material, thereby filtering the paint particles. And the dust adhering to the surface of a filter cloth can be wiped off by spraying jet air toward the inside from the opening surface of a retainer.
  • a flat filter element As such a flat filter element, it is connected to a flat filter formed into a cylindrical shape by two sheet-like filter media facing each other and folded into a bowl shape, and connected to the upper end of the flat filter, and by a flat filter.
  • the upper end member provided with the air outlet configured, a cap connected to the lower end of the planar filter, and a reinforcing member provided with a resin pipe or a round bar across the planar filter.
  • a flat filter element is disclosed (for example, see Patent Document 3).
  • the flat filter element according to Patent Document 3 realizes downsizing in a dust collector using a cartridge element, and can effectively remove dust, and is simple in structure and handling. .
  • JP 2011-41934 A Japanese Utility Model Publication No. 55-147811 International Publication No. 2005/61077 Pamphlet
  • the cylindrical filter element as shown in Patent Document 2 generally holds the outer periphery of a pleated filter cloth with a band at an appropriate interval. Therefore, the cylindrical filter element ensures the durability of the pleated filter cloth by preventing the pleated filter cloth from excessively expanding during backwashing.
  • the cylindrical filter element is disposed inside the dust collector so that the axial direction is substantially vertical so as to coincide with the direction in which the paint mist is sucked upward from below. For this reason, there exists a problem that it is difficult for the pre-coating material which generate
  • the flat filter element as shown in Patent Document 3 is arranged inside the dust collector with the plane to be filtered oriented in a substantially vertical direction so as to intersect the direction of sucking the paint mist upward from below. Can be arranged. Therefore, it is possible to solve the problem that the pre-coating material that has generated dust hardly adheres to the surface of the pleated filter cloth.
  • the flat filter element according to Patent Document 3 changes the direction of air flow when pulsed air at the time of backwashing collides with a reinforcing member provided laterally, and greatly deflects the planar filter outward. .
  • the flat filter element by patent document 3 is able to amplify the effect which peels adhering dust at the time of backwashing (refer paragraph [0047] of patent document 3, and FIG. 4).
  • the flat filter element according to Patent Document 3 increases the amount of deflection of the planar filter when the adhesion area of the planar filter is increased. Therefore, when the filtration step and the backwashing step are alternately repeated, the planar filter quickly reaches the fatigue limit. That is, there is a problem that the lifetime of the planar filter is shortened.
  • a filter element for a dust collector that can filter dust and has excellent durability. The above can be said to be the subject of the present invention.
  • This invention is made in view of such a problem, and it aims at providing the filter element for dust collectors which can filter dust and was excellent in durability.
  • the inventor forms a side surface of a long retainer having a rounded rectangular cross section so as to allow ventilation, and attaches a pleated filter medium covering the side surface of the retainer to the side surface of the retainer with a predetermined interval.
  • the inventors have found that this problem can be solved, and based on this, have come up with the following new filter element for a dust collector.
  • the filter element for a dust collector according to the present invention is arranged such that the filtration surface is arranged in a substantially vertical state, and the direction in which the soot formed substantially parallel to the filtration surface extends substantially coincides with the horizontal direction.
  • a first retainer a porous pleat filter medium that is disposed so as to cover the outer periphery of the first retainer, and that forms a filtration surface provided with a bellows-like ridge in which mountain folding and valley folding are repeated in the circumferential direction;
  • a first cap member that is attached to one end of the retainer, opens a flow port communicating with the inside of the first retainer, and fixes one end of the pleat filter medium; and the other of the first retainer
  • a second cap member for fixing the other end of the pleated filter medium, wherein the first retainer has an accordion-shaped ridge that can be fitted to the inner wall of the pleated filter medium.
  • the filter element for a dust collector according to the present invention has a filtration surface arranged in a substantially vertical state. Moreover, the filter element for dust collectors by this invention is arrange
  • the first retainer is open at both ends. Moreover, the 1st retainer has opened many ventilation holes in the outer periphery containing a pair of substantially rectangular plane opposingly arranged so that it might adjoin.
  • the pleated filter medium is disposed so as to cover the outer periphery of the first retainer. Further, the pleated filter medium forms a filtration surface provided with bellows-like ridges in which mountain folding and valley folding are repeated in the circumferential direction.
  • the first cap member is attached to one end of the first retainer. And the 1st cap member has opened the distribution port connected to the inside of the 1st retainer. The first cap member fixes one end of the pleated filter medium. The second cap member closes the other end of the first retainer. The second cap member fixes the other end of the pleated filter medium.
  • the first retainer has a plurality of ring-shaped first frame members.
  • the first frame member has a bellows-like ridge that can be fitted to the inner wall of the pleated filter medium on the outer wall.
  • These first frame members are arranged at a predetermined interval from one end of the first retainer to the other end. And these 1st frame members are surface-joined to the pleat filter material by fitting through an adhesive agent.
  • the filter element for a dust collector includes a plurality of first frame members formed on the outer wall of bellows-like ridges that can be fitted to the inner wall of the pleated filter medium, and the pleated filter medium by being fitted to the pleated filter medium via an adhesive. Therefore, the rigidity of the filter element can be enhanced and the amount of deflection of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a planar filter, even if a filtration process and a backwashing process are repeated alternately.
  • the first retainer extends from one end portion toward the other end portion so as to be substantially orthogonal to the plurality of first frame members, and is fitted through an adhesive, whereby the pleat A plurality of strip-shaped first rib members surface-bonded to the filter medium, and the inside of the first retainer extend in the longitudinal direction, and are joined to the plurality of first frame members and the plurality of first rib members from the inside. It is preferable to further have a plurality of first plate-like ribs to be reinforced.
  • the filter element for a dust collector is such that the filtration surface is arranged in a substantially vertical state, and the direction in which the soot formed substantially parallel to the filtration surface extends substantially coincides with the horizontal direction.
  • a filter element for a dust collector disposed inside, a hollow plate-like second retainer framed to include a pair of substantially rectangular planes that open at both ends and are opposed to each other so as to be close to each other;
  • a porous pleated filter medium which is disposed so as to cover the outer periphery of the second retainer and forms a filtration surface provided with a bellows-like ridge in which mountain folds and valley folds are repeated in the circumferential direction; and one of the second retainers
  • a first cap member that is attached to the end portion opens a flow port communicating with the inside of the second retainer, and fixes one end portion of the pleated filter medium, and the other end portion of the second retainer
  • the filter element for a dust collector according to the present invention has a filtration surface arranged in a substantially vertical state. Moreover, the filter element for dust collectors by this invention is arrange
  • the second retainer is open at both ends. Moreover, the 2nd retainer is framed so that it may include a pair of substantially rectangular planes opposingly arranged so that it may adjoin.
  • the pleated filter medium is disposed so as to cover the outer periphery of the second retainer. Further, the pleated filter medium forms a filtration surface provided with bellows-like ridges in which mountain folding and valley folding are repeated in the circumferential direction.
  • the first cap member is attached to one end of the second retainer. And the 1st cap member has opened the distribution port connected to the inside of the 2nd retainer. The first cap member fixes one end of the pleated filter medium. The second cap member closes the other end of the second retainer. The second cap member fixes the other end of the pleated filter medium.
  • the second retainer has a plurality of ring-shaped second frame members and a plurality of band-shaped second rib members.
  • the second frame member has a bellows-like ridge that can be fitted to the inner wall of the pleated filter medium on the outer wall.
  • These second frame members are arranged at a predetermined interval from one end of the second retainer toward the other end. And these 2nd frame members are surface-joined to the pleat filter material by fitting through an adhesive agent.
  • the second rib member extends from one end portion of the second retainer toward the other end portion so as to be substantially orthogonal to the second frame member. And these 2nd rib members are surface-joined to the pleat filter material by fitting through an adhesive agent.
  • a plurality of second frame members formed on the outer wall of a bellows-like collar that can be fitted to the inner wall of the pleated filter medium are directed from one end of the second retainer toward the other end. Are arranged with a predetermined interval. And since these 2nd frame members are surface-joined to the pleat filter material by fitting via an adhesive agent, while being able to reinforce the rigidity of a filter element, the amount of bending of a pleat filter material can be reduced.
  • the plurality of second rib members extending from one end portion of the second retainer toward the other end portion so as to be substantially orthogonal to the second frame member include an adhesive.
  • the filter element for dust collectors by this invention can extend the lifetime of a planar filter, even if a filtration process and a backwashing process are repeated alternately.
  • the second retainer includes a plurality of second plates that extend in the longitudinal direction inside the second retainer and are reinforced by joining the plurality of second frame members and the plurality of second rib members from the inside. It is preferable to further have a rib.
  • the pleated filter medium is preferably formed of a polyester nonwoven fabric imparted with air permeability.
  • the outer surface of the pleated filter medium is coated with fluorine.
  • the filter element for a dust collector includes a plurality of first frame members formed on the outer wall of bellows-like ridges that can be fitted to the inner wall of the pleated filter medium, and the pleated filter medium by being fitted to the pleated filter medium via an adhesive. Therefore, the rigidity of the filter element can be enhanced and the amount of deflection of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a filter element, even if a filtration process and a backwashing process are repeated alternately.
  • the filter element for the dust collector according to the present invention includes a plurality of second frame members formed on the outer wall of the bellows-like ridges that can be fitted to the inner wall of the pleated filter medium, and are fitted to the pleated filter medium via an adhesive. Since the surface is bonded to the pleated filter medium, the rigidity of the filter element can be enhanced and the amount of deflection of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a filter element, even if a filtration process and a backwashing process are repeated alternately.
  • FIG. 2 (A) is a front view
  • FIG.2 (B) is a top view
  • FIG.2 (C) is a right view.
  • FIG. 2 (A) is a front view
  • FIG.2 (B) is a top view
  • FIG.2 (C) is a right view.
  • FIG. 2 (A) is a front view
  • FIG.2 (B) is a top view
  • FIG.2 (C) is a right view.
  • FIG. 2 (C) is a right view.
  • FIG. 2 (A) is a front view
  • FIG.2 (B) is a top view
  • FIG.2 (C) is a right view.
  • FIG. 2 (A) is a front view
  • FIG.2 (B) is a top view
  • FIG.2 (C) is a right view.
  • FIG. 2 (A) is a front view
  • FIG.2 (B) is a top view
  • FIG.2 (C) is a right view.
  • FIG. 4 (A) is a front view of a 1st retainer
  • FIG.4 (B) is a top view of a 1st retainer
  • FIG. 4C is a right side view of the first retainer.
  • FIG. 6 (A) is a front view
  • FIG.6 (B) is a top view
  • FIG.6 (C) is a right view.
  • FIG. 8 (A) is a front view of a 2nd retainer
  • FIG.8 (B) is a top view of a 2nd retainer
  • FIG. 8C is a right side view of the second retainer.
  • FIG. 1 is a perspective view showing a configuration of a filter element for a dust collector according to a first embodiment of the present invention.
  • 2A and 2B are diagrams illustrating the configuration of the filter element for a dust collector according to the first embodiment, in which FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a right side view. .
  • FIG. 3 is a perspective exploded view showing the configuration of the filter element for the dust collector according to the first embodiment.
  • FIG. 4 is a view showing a configuration of a first retainer provided in the filter element for a dust collector according to the first embodiment, FIG. 4 (A) is a front view of the first retainer, and FIG. 4 (B) is a first retainer.
  • FIG. 4C is a right side view of the first retainer.
  • a filter element for a dust collector (hereinafter abbreviated as a filter element) 10 according to a first embodiment of the present invention, a filtration surface for filtering dust contained in gas is arranged in a substantially vertical state.
  • the filter element 10 is disposed inside a dust collector (not shown) so that the extending direction of the ridge formed substantially parallel to the filtration surface substantially coincides with the horizontal direction.
  • the filter element 10 includes a hollow flat plate-like first retainer 1 and a porous pleated filter medium 2.
  • the filter element 10 includes a first cap member 3 and a second cap member 4.
  • the first retainer 1 is open at both ends. Moreover, the 1st retainer 1 is opening many ventilation holes 1h in the outer periphery containing a pair of substantially rectangular plane opposingly arranged so that it may adjoin.
  • the pleated filter medium 2 is arranged so as to cover the outer periphery of the first retainer 1. Further, the pleated filter medium 2 forms a filtration surface provided with a bellows-like ridge 2b in which mountain folding and valley folding are repeated in the circumferential direction.
  • the first cap member 3 is attached to one end of the first retainer 1.
  • the first cap member 3 opens an oval circulation port 3 h communicating with the inside of the first retainer 1.
  • the first cap member 3 has one end of the pleated filter medium 2 fixed with an adhesive B.
  • the second cap member 4 closes the other end of the first retainer 1.
  • the second cap member 4 has the other end of the pleated filter medium 2 fixed with an adhesive B.
  • the first retainer 1 has a plurality of ring-shaped first frame members 1s.
  • the 1st frame member 1s forms the bellows-like collar 1b which can be fitted in the inner wall of the pleat filter medium 2 on the outer wall.
  • These first frame members 1s are arranged at a predetermined interval from one end portion of the first retainer 1 toward the other end portion. And these 1st frame members 1s are surface-joining the pleat filter material 2 using the adhesive agent which is not shown in figure.
  • the first retainer 1 has a pair of strip-shaped first rib members 1r. These first rib members 1r extend from one end portion of the first retainer 1 toward the other end portion so as to be substantially orthogonal to the plurality of first frame members 1s. And these 1st frame members 1s are surface-joining the pleat filter material 2 using the adhesive agent which is not shown in figure.
  • the first rib member 1r shares a part of the flange 1b of the first frame member 1s.
  • the first retainer 1 has two first plate-like ribs 1p. These first plate-like ribs 1p extend in the longitudinal direction inside the first retainer 1. Further, these first plate-like ribs 1p reinforce the first retainer 1 by being joined to the plurality of first frame members 1s and the plurality of first rib members 1r from the inside.
  • the first retainer 1 can be about 150 cm in length. Further, the width of the first retainer 1 can be about 50 cm. Furthermore, the thickness of the first retainer 1 can be about 5 cm.
  • the filter element 10 according to the first embodiment can provide a thin flat plate filter element (see FIG. 1).
  • the filter element 10 is supported at both ends by, for example, a pair of frames (not shown) standing up inside a dust collector (not shown).
  • Another filter element 10 can be arranged in the upper stage of the filter element 10 shown in FIG. 1, and another filter element 10 can be arranged in the lower stage of the filter element 10 shown in FIG. Further, another filter element 10 may be arranged in parallel before and after the filter element 10 shown in FIG.
  • the negative pressure is applied to the inside of one frame (not shown) that supports the first cap member 3, so that the filter element 10 can remove dust supplied to the inside of a dust collector (not shown). It can be filtered.
  • a jet air supply pipe 9 is arranged inside one frame (not shown) that supports the first cap member 3, and jet air Ja is introduced into the filter element 10.
  • jet air Ja is introduced into the filter element 10.
  • dust adhering to the filtration surface of the pleated filter medium 2 can be removed. That is, the filter element 10 can be backwashed.
  • annular packing 3p it is preferable to attach an annular packing 3p to the end face of the first cap member 3 (FIG. 2 ( C)).
  • the interval between the first frame members 1 s is closer to the closing side than the opening side of the first retainer 1.
  • the jet air Ja (see FIG. 1) blown into the first retainer 1 can be discharged from the outer periphery of the pleated filter medium 2 with a substantially uniform wind pressure.
  • the first retainer 1 is preferably molded from a synthetic resin to obtain a hollow plate-shaped main body 11.
  • the main body 11 may form a metal plate.
  • the molded body 11 includes a first plate-like rib 1p.
  • the first frame member 1s and the first rib member 1r are preferably formed of a synthetic resin.
  • the first retainer 1 may join the first frame member 1s and the first rib member 1r to the main body 11, or may integrally mold the first frame member 1s, the first rib member 1r, and the main body 11.
  • the pleated filter medium 2 can be a polyester nonwoven fabric imparted with air permeability.
  • a commercially available polyester nonwoven fabric in which polyester fibers are randomly welded in order to impart air permeability can be used.
  • a sheet-like polyester nonwoven fabric can be thermoformed to provide a bellows-like ridge 2b in which mountain folds and valley folds are repeated.
  • this polyester nonwoven fabric is formed into a rounded rectangle and both ends are thermally welded, whereby the pleated filter medium 2 whose outer periphery is closed as shown in FIG. 3 can be obtained.
  • the surface area of a filtration surface can be increased by providing the filter medium with the bellows-like ridge 2b in which mountain folding and valley folding are repeated.
  • the filter element 10 can be completed.
  • the pleated filter medium 2 is preferably fluorine-coated on the outer surface with a commercially available fluororesin paint diluted with water and alcohol, and the pleated filter medium 2 is imparted with water repellency without impairing air permeability.
  • a plurality of first frame members 1s formed on the outer wall with bellows-like ridges 1b that can be fitted to the inner wall of the pleated filter medium 2 are fitted to the pleated filter medium 2 via an adhesive.
  • the rigidity of the filter element 10 can be enhanced and the amount of bending of the pleated filter medium 2 can be reduced.
  • the filter element 10 by 1st Embodiment can extend the lifetime of the filter element 10 even if a filtration process and a backwashing process are repeated alternately.
  • FIG. 5 is a perspective view showing a configuration of a filter element for a dust collector according to a second embodiment of the present invention.
  • 6A and 6B are diagrams showing the configuration of the filter element for a dust collector according to the second embodiment.
  • FIG. 6A is a front view
  • FIG. 6B is a plan view
  • FIG. 6C is a right side view. .
  • FIG. 7 is a perspective exploded view showing the configuration of the filter element for a dust collector according to the second embodiment.
  • FIG. 8 is a view showing a configuration of a second retainer provided in the filter element for a dust collector according to the second embodiment, FIG. 8A is a front view of the second retainer, and FIG. 8B is a second retainer.
  • FIG. 8C is a right side view of the second retainer.
  • the filter element 20 according to the second embodiment of the present invention has the filtration surface arranged in a substantially vertical state.
  • the filter element 20 is disposed inside a dust collector (not shown) such that the extending direction of the ridge formed substantially parallel to the filtration surface substantially coincides with the horizontal direction.
  • the filter element 20 includes a hollow flat plate-like second retainer 5 and a porous pleated filter medium 2.
  • the filter element 20 includes a first cap member 3 and a second cap member 4.
  • the second retainer 5 is open at both ends. Moreover, the 2nd retainer 5 is framed so that a pair of substantially rectangular planes opposingly arranged so that it may adjoin may be included.
  • the pleated filter medium 2 is arranged so as to cover the outer periphery of the second retainer 5. Further, the pleated filter medium 2 forms a filtration surface provided with a bellows-like ridge 2b in which mountain folding and valley folding are repeated in the circumferential direction.
  • the first cap member 3 is attached to one end of the second retainer 5.
  • the first cap member 3 opens an oval circulation port 3 h communicating with the inside of the second retainer 5.
  • the first cap member 3 has one end of the pleated filter medium 2 fixed with an adhesive B.
  • the second cap member 4 closes the other end of the second retainer 5.
  • the second cap member 4 has the other end of the pleated filter medium 2 fixed with an adhesive B.
  • the second retainer 5 has a plurality of annular second frame members 5s.
  • the second frame member 5 s has a bellows-like flange 5 b that can be fitted to the inner wall of the pleated filter medium 2 on the outer wall.
  • These second frame members 5s are arranged at a predetermined interval from one end portion of the second retainer 5 toward the other end portion. And these 2nd retainers 5 surface-join the pleat filter medium 2 using the adhesive agent which is not shown in figure.
  • the second retainer 5 has a pair of strip-like second rib members 5r. These second rib members 5r extend from one end portion of the second retainer 5 toward the other end portion so as to be substantially orthogonal to the plurality of second frame members 5s. And these 2nd frame members 5s surface-join the pleat filter medium 2 using the adhesive agent which is not shown in figure.
  • the second rib member 5r shares a part of the flange 5b of the second frame member 5s.
  • the second retainer 5 has two second plate-like ribs 5p. These second plate-like ribs 5p extend in the longitudinal direction inside the second retainer 5. These second plate-like ribs 5p are joined to the plurality of second frame members 5s and the plurality of second rib members 5r from the inside to reinforce the second retainer 5.
  • the length of the second retainer 5 can be about 150 cm.
  • the width of the second retainer 5 can be about 50 cm.
  • the thickness of the second retainer 5 can be about 5 cm.
  • the filter element 20 according to the second embodiment can provide a thin flat plate filter element (see FIG. 5).
  • the filter element 20 is supported at both ends by, for example, a pair of frames (not shown) standing inside a dust collector (not shown).
  • Another filter element 20 can be arranged on the upper stage of the filter element 20 shown in FIG. 5, and another filter element 20 can be arranged on the lower stage of the filter element 20 shown in FIG. Further, another filter element 20 can be arranged in parallel before and after the filter element 20 shown in FIG.
  • the negative pressure is applied to the inside of one frame (not shown) that supports the first cap member 3, so that the filter element 20 can remove dust supplied to the inside of a dust collector (not shown). It can be filtered.
  • a jet air supply pipe 9 is arranged inside one frame (not shown) that supports the first cap member 3, and jet air Ja is put inside the filter element 20.
  • jet air Ja is put inside the filter element 20.
  • the interval between the second frame members 5 s is closer to the closing side than the opening side of the second retainer 5.
  • the jet air Ja (see FIG. 5) blown into the second retainer 5 can be discharged from the outer periphery of the pleated filter medium 2 with a substantially uniform wind pressure.
  • the second retainer 5 is obtained by molding a synthetic resin to obtain a framed hollow flat plate-like main body 51.
  • the main body 51 may form a metal plate.
  • the molded main body 51 includes the second plate-like rib 5p.
  • the second frame member 5s and the second rib member 5r are preferably formed of a synthetic resin.
  • the second retainer 5 may join the second frame member 5s and the second rib member 5r to the main body 51, and may integrally mold the second frame member 5s, the second rib member 5r, and the main body 15.
  • the pleated filter medium 2 can be made of a polyester nonwoven fabric imparted with air permeability.
  • a commercially available polyester nonwoven fabric in which polyester fibers are randomly welded in order to impart air permeability can be used.
  • a sheet-like polyester nonwoven fabric can be thermoformed to provide a bellows-like ridge 2b in which mountain folds and valley folds are repeated.
  • this polyester nonwoven fabric is formed into a rounded rectangle, and both ends are thermally welded, whereby the pleated filter medium 2 whose outer periphery is closed as shown in FIG. 7 can be obtained.
  • the surface area of a filtration surface can be increased by providing the filter medium with the bellows-like ridge 2b in which mountain folding and valley folding are repeated.
  • the first cap member 3 and the second cap member 4 are bonded to both ends of the pleated filter medium 2.
  • the pleated filter medium 2 is preferably fluorine-coated on the outer surface with a commercially available fluororesin paint diluted with water and alcohol, and the pleated filter medium 2 is imparted with water repellency without impairing air permeability.
  • a plurality of second frame members 5s formed on the outer wall with bellows-like ridges 1b that can be fitted to the inner wall of the pleated filter medium 2 are fitted to the pleated filter medium 2 via an adhesive.
  • the rigidity of the filter element 20 can be enhanced and the amount of bending of the pleated filter medium 2 can be reduced.
  • the filter element 20 by 2nd Embodiment can extend the lifetime of the filter element 20 even if a filtration process and a backwashing process are repeated alternately.
  • the 2nd retainer 5 by 2nd Embodiment has the advantage that shaping
  • the filter element for a dust collector according to the present invention is suitable, for example, for filtering dust having strong adhesion supplied to a dust collector installed in a painting booth and collecting the dust.
  • ADVANTAGE OF THE INVENTION This invention can provide the filter element for dust collectors excellent in durability.
  • the filter element for a dust collector according to the present invention can filter not only dust with strong adhesion contained in gas but also dust contained in air.

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  • Filtering Of Dispersed Particles In Gases (AREA)

Description

集塵機用フィルタエレメントFilter element for dust collector

　本発明は、集塵機用フィルタエレメントに関する。特に、本発明は、集塵機に供給される粉塵を濾過すると共に、これらの粉塵を回収することに適した集塵機用フィルタエレメントの構造に関する。 The present invention relates to a filter element for a dust collector. In particular, the present invention relates to a structure of a filter element for a dust collector suitable for filtering dust supplied to a dust collector and collecting the dust.

　例えば、自動車の車体を塗装する塗装ブースでは、余剰の塗料ミストが発生する。この塗装ブースには、集塵機が設置されており、塗料ミストは、フィルタを内部に配置した集塵機に供給され、フィルタで塗料粒子が捕集されることで濾過されている。これらの塗料粒子は、付着性が強いので、プレコート材に吸着させて塗料粒子を濾過していた。 For example, surplus paint mist is generated in a painting booth for painting the body of an automobile. In this painting booth, a dust collector is installed, and the paint mist is supplied to a dust collector having a filter disposed therein, and is filtered by collecting paint particles with the filter. Since these paint particles have strong adhesion, they were adsorbed on the precoat material and filtered.

　塗料ミストを濾過する集塵機用フィルタとしては、炭酸カルシウムなどの乾燥粉体を集塵機の内部で発塵させ、吸引することで、フィルタの表面にプレコート材としての乾燥粉体を予め付着させておき、塗料ミストを吸引することで、塗料粒子がプレコート材に吸着されて、フィルタの目詰まりを防止する集塵機用フィルタが知られている（例えば、特許文献１参照）。 As a dust collector filter for filtering paint mist, dry powder such as calcium carbonate is generated inside the dust collector and sucked, so that the dry powder as a precoat material is attached to the surface of the filter in advance. A dust collector filter is known in which paint particles are adsorbed by a precoat material by sucking paint mist to prevent clogging of the filter (see, for example, Patent Document 1).

　前述したような、集塵機用フィルタは、集塵方向とは逆方向からジェットエアを吹き付けることで、いわゆる、逆洗することで、塗料粒子を含んだプレコート材をフィルタの表面から除去できる。例えば、塗料粒子を含んだプレコート材は、コンクリートに混在させる資源として再利用できる。 The filter for the dust collector as described above can remove the precoat material containing the paint particles from the surface of the filter by so-called back washing by blowing jet air from the direction opposite to the dust collecting direction. For example, a precoat material containing paint particles can be reused as a resource mixed in concrete.

　このような産業用集塵機に用いられるフィルタエレメントとしては、円筒形フィルタエレメントが知られている。円筒形フィルタエレメントは、一端面が閉塞され、他端面が開口された円筒状のリテーナ（支持枠）と、このリテーナの外周を覆う、三角波状に折り畳んだ濾布（プリーツ型濾布）で構成している。 円 筒 Cylindrical filter elements are known as filter elements used in such industrial dust collectors. The cylindrical filter element is composed of a cylindrical retainer (support frame) with one end closed and the other end opened, and a filter cloth (pleated filter cloth) folded in a triangular wave shape covering the outer periphery of the retainer. is doing.

　上述した円筒形フィルタエレメントは、プレコート材を集塵機の内部で発塵させ、吸引することで、プリーツ型濾布の表面にプレコート材を予め付着させておき、塗料ミストを吸引することで、塗料粒子がプレコート材に吸着されることで、塗料粒子を濾過している。そして、リテーナの開口面から内部に向かって、ジェットエアを吹き付けることで、濾布の表面に付着した粉塵を払い落とすことができる。 The cylindrical filter element described above generates pre-coating material in the dust collector and sucks it, so that the pre-coating material is attached in advance to the surface of the pleated filter cloth, and the paint mist is sucked into the paint particles. Is adsorbed by the precoat material, thereby filtering the paint particles. And the dust adhering to the surface of a filter cloth can be wiped off by spraying jet air toward the inside from the opening surface of a retainer.

　このような円筒形フィルタエレメントは、逆洗時に濾布が過度に膨張することで、その寿命を縮める原因になることから、濾布の中間部をリング部材で保持し、リング部材の内周面にクッション材を貼着した円筒形フィルタエレメントが開示されている（例えば、特許文献２参照）。 Since such a cylindrical filter element causes the filter cloth to expand excessively during backwashing and shortens its life, the intermediate portion of the filter cloth is held by the ring member, and the inner peripheral surface of the ring member A cylindrical filter element having a cushion material attached thereto is disclosed (for example, see Patent Document 2).

　又、このような産業用集塵機に用いられるフィルタエレメントとしては、平板形フィルタエレメントが知られている。このような平板形フィルタエレメントとしては、相互に対向させ襞状に折り込んだ２つのシート状濾材を筒状に成した平面状フィルタと、平面状フィルタの上端に連結されると共に、平面状フィルタによって構成された吹出口を設けた上端部材と、平面状フィルタの下端に連結されたキャップと、平面状フィルタの内部に樹脂製パイプ又は丸棒を横渡しにして設けた補強部材と、を備えた平板形フィルタエレメントが開示されている（例えば、特許文献３参照）。 Further, as a filter element used in such an industrial dust collector, a flat filter element is known. As such a flat filter element, it is connected to a flat filter formed into a cylindrical shape by two sheet-like filter media facing each other and folded into a bowl shape, and connected to the upper end of the flat filter, and by a flat filter. The upper end member provided with the air outlet configured, a cap connected to the lower end of the planar filter, and a reinforcing member provided with a resin pipe or a round bar across the planar filter. A flat filter element is disclosed (for example, see Patent Document 3).

　特許文献３による平板形フィルタエレメントは、カートリッジエレメントを用いた集塵機において、ダウンサイジングを実現すると共に、効果的に塵芥を払い落とすことが可能であり、かつ、構造及び取り扱いが簡単である、としている。 The flat filter element according to Patent Document 3 realizes downsizing in a dust collector using a cartridge element, and can effectively remove dust, and is simple in structure and handling. .

特開２０１１－４１９３４号公報JP 2011-41934 A 実開昭５５－１４７８１１号公報Japanese Utility Model Publication No. 55-147811 国際公開第２００５／６１０７７号パンフレットInternational Publication No. 2005/61077 Pamphlet

　特許文献２に示されたような円筒形フィルタエレメントは、一般に、プリーツ型濾布の外周を適度な間隔を設けてバンドで保持している。したがって、円筒形フィルタエレメントは、逆洗時にプリーツ型濾布が過度に膨張することを防止することで、プリーツ型濾布の耐久性を保障している。 The cylindrical filter element as shown in Patent Document 2 generally holds the outer periphery of a pleated filter cloth with a band at an appropriate interval. Therefore, the cylindrical filter element ensures the durability of the pleated filter cloth by preventing the pleated filter cloth from excessively expanding during backwashing.

　しかし、円筒形フィルタエレメントは、塗料ミストを下方から上方に向けて吸引する方向と一致するように、軸方向を略鉛直方向に向けて、集塵機の内部に配置している。このため、発塵させたプレコート材がプリーツ型濾布の上部に向けて付着し難いという問題がある。又、円筒形フィルタエレメントは、垂直方向に配置されているため、局部風速が速い箇所では、プレコート材がプリーツ型濾布の表面から脱落し易いという問題もある。更に、円筒形フィルタエレメントは、バンドの表面に塗料粒子が付着し易いという問題がある。 However, the cylindrical filter element is disposed inside the dust collector so that the axial direction is substantially vertical so as to coincide with the direction in which the paint mist is sucked upward from below. For this reason, there exists a problem that it is difficult for the pre-coating material which generate | occur | produced dust to adhere toward the upper part of a pleated filter cloth. Further, since the cylindrical filter elements are arranged in the vertical direction, there is a problem that the precoat material is easily dropped from the surface of the pleated filter cloth at a location where the local wind speed is high. Furthermore, the cylindrical filter element has a problem that the paint particles easily adhere to the surface of the band.

　一方、特許文献３に示されたような平板形フィルタエレメントは、塗料ミストを下方から上方に向けて吸引する方向と交差するように、濾過する平面を略鉛直方向に向けて、集塵機の内部に配置することができる。したがって、発塵させたプレコート材がプリーツ型濾布の表面に付着し難いという問題を解消できる。 On the other hand, the flat filter element as shown in Patent Document 3 is arranged inside the dust collector with the plane to be filtered oriented in a substantially vertical direction so as to intersect the direction of sucking the paint mist upward from below. Can be arranged. Therefore, it is possible to solve the problem that the pre-coating material that has generated dust hardly adheres to the surface of the pleated filter cloth.

　又、特許文献３による平板形フィルタエレメントは、逆洗時のパルスエアが横渡しにして設けた補強部材に衝突することによりエアの流れる方向を変化させ、平面状フィルタを外側に大きく撓ませている。そして、特許文献３による平板形フィルタエレメントは、逆洗時に付着ダストを剥離させる効果を増幅できる、としている（特許文献３の段落［００４７］及び図４、参照）。 In addition, the flat filter element according to Patent Document 3 changes the direction of air flow when pulsed air at the time of backwashing collides with a reinforcing member provided laterally, and greatly deflects the planar filter outward. . And the flat filter element by patent document 3 is able to amplify the effect which peels adhering dust at the time of backwashing (refer paragraph [0047] of patent document 3, and FIG. 4).

　しかし、特許文献３による平板形フィルタエレメントは、平面状フィルタの付着面積を拡大すると、平面状フィルタの撓み量が大きくなる。したがって、濾過工程と逆洗工程が交互に繰り返されると、平面状フィルタが疲労限界を超えることが早くなる。つまり、平面状フィルタの寿命が短くなるという問題がある。粉塵を濾過できると共に、耐久性に優れた集塵機用フィルタエレメントが求められている。そして、以上のことが本発明の課題といってよい。 However, the flat filter element according to Patent Document 3 increases the amount of deflection of the planar filter when the adhesion area of the planar filter is increased. Therefore, when the filtration step and the backwashing step are alternately repeated, the planar filter quickly reaches the fatigue limit. That is, there is a problem that the lifetime of the planar filter is shortened. There is a need for a filter element for a dust collector that can filter dust and has excellent durability. The above can be said to be the subject of the present invention.

　本発明は、このような問題に鑑みてなされたものであり、粉塵を濾過できると共に、耐久性に優れた集塵機用フィルタエレメントを提供することを目的とする。 This invention is made in view of such a problem, and it aims at providing the filter element for dust collectors which can filter dust and was excellent in durability.

　本発明者は、角丸長方形の断面を有する長尺のリテーナの側面を通風可能に形成すると共に、リテーナの側面を覆うプリーツ形濾材をリテーナの側面に所定の間隔を設けて接着することにより、この課題が解決可能なことを見出し、これに基づいて、以下のような新たな集塵機用フィルタエレメントを発明するに至った。 The inventor forms a side surface of a long retainer having a rounded rectangular cross section so as to allow ventilation, and attaches a pleated filter medium covering the side surface of the retainer to the side surface of the retainer with a predetermined interval. The inventors have found that this problem can be solved, and based on this, have come up with the following new filter element for a dust collector.

　（１）本発明による集塵機用フィルタエレメントは、濾過面が略鉛直状態に配置されると共に、前記濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、集塵機の内部に配置される集塵機用フィルタエレメントであって、両端部を開口すると共に、近接するように対向配置された一対の略矩形の平面を含む外周に多数の通風孔を開口した中空平板状の第１リテーナと、前記第１リテーナの外周を覆うように配置され、山折りと谷折りが周方向に繰り返される蛇腹状の襞を設けた濾過面を形成する多孔質のプリーツ濾材と、前記第１リテーナの一方の端部に取り付け、当該第１リテーナの内部に連通する流通口を開口すると共に、前記プリーツ濾材の一方の端部を固定する第１キャップ部材と、前記第１リテーナの他方の端部を閉塞すると共に、前記プリーツ濾材の他方の端部を固定する第２キャップ部材と、を備え、前記第１リテーナは、前記プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成し、一方の端部から他方の端部に向けて、所定の間隔を設けて配置された複数の輪帯状の第１枠部材を有し、これらの第１枠部材は、接着剤を介して嵌合することで、前記プリーツ濾材に面接合している。 (1) The filter element for a dust collector according to the present invention is arranged such that the filtration surface is arranged in a substantially vertical state, and the direction in which the soot formed substantially parallel to the filtration surface extends substantially coincides with the horizontal direction. A filter element for a dust collector disposed inside, having a hollow flat plate-like first shape having a large number of ventilation holes on the outer periphery including a pair of substantially rectangular planes facing both ends and opening both ends. A first retainer, a porous pleat filter medium that is disposed so as to cover the outer periphery of the first retainer, and that forms a filtration surface provided with a bellows-like ridge in which mountain folding and valley folding are repeated in the circumferential direction; A first cap member that is attached to one end of the retainer, opens a flow port communicating with the inside of the first retainer, and fixes one end of the pleat filter medium; and the other of the first retainer And a second cap member for fixing the other end of the pleated filter medium, wherein the first retainer has an accordion-shaped ridge that can be fitted to the inner wall of the pleated filter medium. And having a plurality of ring-shaped first frame members arranged at a predetermined interval from one end portion to the other end portion. The surface is joined to the pleat filter medium by fitting through the pleats.

　本発明による集塵機用フィルタエレメントは、濾過面が略鉛直状態に配置される。又、本発明による集塵機用フィルタエレメントは、濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、集塵機の内部に配置される。そして、本発明による集塵機用フィルタエレメントは、中空平板状の第１リテーナと多孔質のプリーツ濾材を備えている。又、本発明による集塵機用フィルタエレメントは、第１キャップ部材と第２キャップ部材を備えている。 The filter element for a dust collector according to the present invention has a filtration surface arranged in a substantially vertical state. Moreover, the filter element for dust collectors by this invention is arrange | positioned inside a dust collector so that the extending direction of the soot formed substantially parallel to the filtration surface may correspond with a horizontal direction. And the filter element for dust collectors by this invention is equipped with the hollow plate-shaped 1st retainer and the porous pleat filter material. Moreover, the filter element for dust collectors by this invention is equipped with the 1st cap member and the 2nd cap member.

　第１リテーナは、両端部を開口している。又、第１リテーナは、近接するように対向配置された一対の略矩形の平面を含む外周に多数の通風孔を開口している。プリーツ濾材は、第１リテーナの外周を覆うように配置されている。又、プリーツ濾材は、山折りと谷折りが周方向に繰り返される蛇腹状の襞を設けた濾過面を形成している。 The first retainer is open at both ends. Moreover, the 1st retainer has opened many ventilation holes in the outer periphery containing a pair of substantially rectangular plane opposingly arranged so that it might adjoin. The pleated filter medium is disposed so as to cover the outer periphery of the first retainer. Further, the pleated filter medium forms a filtration surface provided with bellows-like ridges in which mountain folding and valley folding are repeated in the circumferential direction.

　第１キャップ部材は、第１リテーナの一方の端部に取り付けている。そして、第１キャップ部材は、第１リテーナの内部に連通する流通口を開口している。又、第１キャップ部材は、プリーツ濾材の一方の端部を固定している。第２キャップ部材は、第１リテーナの他方の端部を閉塞している。又、第２キャップ部材は、プリーツ濾材の他方の端部を固定している。 The first cap member is attached to one end of the first retainer. And the 1st cap member has opened the distribution port connected to the inside of the 1st retainer. The first cap member fixes one end of the pleated filter medium. The second cap member closes the other end of the first retainer. The second cap member fixes the other end of the pleated filter medium.

　第１リテーナは、複数の輪帯状の第１枠部材を有している。第１枠部材は、プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成している。これらの第１枠部材は、第１リテーナの一方の端部から他方の端部に向けて、所定の間隔を設けて配置されている。そして、これらの第１枠部材は、接着剤を介して嵌合することで、プリーツ濾材に面接合している。 The first retainer has a plurality of ring-shaped first frame members. The first frame member has a bellows-like ridge that can be fitted to the inner wall of the pleated filter medium on the outer wall. These first frame members are arranged at a predetermined interval from one end of the first retainer to the other end. And these 1st frame members are surface-joined to the pleat filter material by fitting through an adhesive agent.

　本発明による集塵機用フィルタエレメントは、プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成した複数の第１枠部材が接着剤を介してプリーツ濾材に嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメントの剛性を強化できると共に、プリーツ濾材の撓み量を減少できる。これにより、本発明による集塵機用フィルタエレメントは、濾過工程と逆洗工程が交互に繰り返されても、平面状フィルタの寿命を延ばすことができる。 The filter element for a dust collector according to the present invention includes a plurality of first frame members formed on the outer wall of bellows-like ridges that can be fitted to the inner wall of the pleated filter medium, and the pleated filter medium by being fitted to the pleated filter medium via an adhesive. Therefore, the rigidity of the filter element can be enhanced and the amount of deflection of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a planar filter, even if a filtration process and a backwashing process are repeated alternately.

　（２）前記第１リテーナは、複数の前記第１枠部材と略直交するように、一方の端部から他方の端部に向けて延び、接着剤を介して嵌合することで、前記プリーツ濾材に面接合している複数の帯状の第１リブ部材と、当該第１リテーナの内部を長手方向に延びる共に、複数の前記第１枠部材及び複数の前記第１リブ部材に内部から接合して補強する複数の第１板状リブと、を更に有することが好ましい。 (2) The first retainer extends from one end portion toward the other end portion so as to be substantially orthogonal to the plurality of first frame members, and is fitted through an adhesive, whereby the pleat A plurality of strip-shaped first rib members surface-bonded to the filter medium, and the inside of the first retainer extend in the longitudinal direction, and are joined to the plurality of first frame members and the plurality of first rib members from the inside. It is preferable to further have a plurality of first plate-like ribs to be reinforced.

　（３）本発明による集塵機用フィルタエレメントは、濾過面が略鉛直状態に配置されると共に、前記濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、集塵機の内部に配置される集塵機用フィルタエレメントであって、両端部を開口すると共に、近接するように対向配置された一対の略矩形の平面を含むように骨組みされた中空平板状の第２リテーナと、前記第２リテーナの外周を覆うように配置され、山折りと谷折りが周方向に繰り返される蛇腹状の襞を設けた濾過面を形成する多孔質のプリーツ濾材と、前記第２リテーナの一方の端部に取り付け、当該第２リテーナの内部に連通する流通口を開口すると共に、前記プリーツ濾材の一方の端部を固定する第１キャップ部材と、前記第２リテーナの他方の端部を閉塞すると共に、前記プリーツ濾材の他方の端部を固定する第２キャップ部材と、を備え、前記第２リテーナは、前記プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成し、一方の端部から他方の端部に向けて所定の間隔を設けて配置され、接着剤を介して嵌合することで、前記プリーツ濾材に面接合した複数の輪帯状の第２枠部材と、複数の前記第２枠部材と略直交するように、一方の端部から他方の端部に向けて延び、接着剤を介して嵌合することで、前記プリーツ濾材に面接合した複数の帯状の第２リブ部材と、を有する。 (3) The filter element for a dust collector according to the present invention is such that the filtration surface is arranged in a substantially vertical state, and the direction in which the soot formed substantially parallel to the filtration surface extends substantially coincides with the horizontal direction. A filter element for a dust collector disposed inside, a hollow plate-like second retainer framed to include a pair of substantially rectangular planes that open at both ends and are opposed to each other so as to be close to each other; A porous pleated filter medium which is disposed so as to cover the outer periphery of the second retainer and forms a filtration surface provided with a bellows-like ridge in which mountain folds and valley folds are repeated in the circumferential direction; and one of the second retainers A first cap member that is attached to the end portion, opens a flow port communicating with the inside of the second retainer, and fixes one end portion of the pleated filter medium, and the other end portion of the second retainer A second cap member that closes and fixes the other end of the pleated filter medium, and the second retainer forms a bellows-like ridge that can be fitted to the inner wall of the pleated filter medium on the outer wall, A plurality of annular second frame members that are arranged with a predetermined interval from one end portion to the other end portion and are surface-bonded to the pleat filter medium by being fitted via an adhesive, A plurality of strip-shaped surfaces that are surface-bonded to the pleat filter medium by extending from one end to the other end so as to be substantially orthogonal to the plurality of second frame members and being fitted via an adhesive. A second rib member.

　本発明による集塵機用フィルタエレメントは、濾過面が略垂直状態に配置される。又、本発明による集塵機用フィルタエレメントは、濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、集塵機の内部に配置される。そして、本発明による集塵機用フィルタエレメントは、中空平板状の第２リテーナと多孔質のプリーツ濾材を備えている。又、本発明による集塵機用フィルタエレメントは、第１キャップ部材と第２キャップ部材を備えている。 The filter element for a dust collector according to the present invention has a filtration surface arranged in a substantially vertical state. Moreover, the filter element for dust collectors by this invention is arrange | positioned inside a dust collector so that the extending direction of the soot formed substantially parallel to the filtration surface may correspond with a horizontal direction. And the filter element for dust collectors by this invention is equipped with the hollow flat 2nd retainer and the porous pleat filter material. Moreover, the filter element for dust collectors by this invention is equipped with the 1st cap member and the 2nd cap member.

　第２リテーナは、両端部を開口している。又、第２リテーナは、近接するように対向配置された一対の略矩形の平面を含むように骨組みしている。プリーツ濾材は、第２リテーナの外周を覆うように配置されている。又、プリーツ濾材は、山折りと谷折りが周方向に繰り返される蛇腹状の襞を設けた濾過面を形成している。 The second retainer is open at both ends. Moreover, the 2nd retainer is framed so that it may include a pair of substantially rectangular planes opposingly arranged so that it may adjoin. The pleated filter medium is disposed so as to cover the outer periphery of the second retainer. Further, the pleated filter medium forms a filtration surface provided with bellows-like ridges in which mountain folding and valley folding are repeated in the circumferential direction.

　第１キャップ部材は、第２リテーナの一方の端部に取り付けている。そして、第１キャップ部材は、第２リテーナの内部に連通する流通口を開口している。又、第１キャップ部材は、プリーツ濾材の一方の端部を固定している。第２キャップ部材は、第２リテーナの他方の端部を閉塞している。又、第２キャップ部材は、プリーツ濾材の他方の端部を固定している。 The first cap member is attached to one end of the second retainer. And the 1st cap member has opened the distribution port connected to the inside of the 2nd retainer. The first cap member fixes one end of the pleated filter medium. The second cap member closes the other end of the second retainer. The second cap member fixes the other end of the pleated filter medium.

　第２リテーナは、複数の輪帯状の第２枠部材と複数の帯状の第２リブ部材を有している。第２枠部材は、プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成している。これらの第２枠部材は、第２リテーナの一方の端部から他方の端部に向けて、所定の間隔を設けて配置されている。そして、これらの第２枠部材は、接着剤を介して嵌合することで、プリーツ濾材に面接合している。第２リブ部材は、第２枠部材と略直交するように、第２リテーナの一方の端部から他方の端部に向けて延びている。そして、これらの第２リブ部材は、接着剤を介して嵌合することで、プリーツ濾材に面接合している。 The second retainer has a plurality of ring-shaped second frame members and a plurality of band-shaped second rib members. The second frame member has a bellows-like ridge that can be fitted to the inner wall of the pleated filter medium on the outer wall. These second frame members are arranged at a predetermined interval from one end of the second retainer toward the other end. And these 2nd frame members are surface-joined to the pleat filter material by fitting through an adhesive agent. The second rib member extends from one end portion of the second retainer toward the other end portion so as to be substantially orthogonal to the second frame member. And these 2nd rib members are surface-joined to the pleat filter material by fitting through an adhesive agent.

　本発明による集塵機用フィルタエレメントは、プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成した複数の第２枠部材が第２リテーナの一方の端部から他方の端部に向けて、所定の間隔を設けて配置されている。そして、これらの第２枠部材は、接着剤を介して嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメントの剛性を強化できると共に、プリーツ濾材の撓み量を減少できる。又、本発明による集塵機用フィルタエレメントは、第２枠部材と略直交するように、第２リテーナの一方の端部から他方の端部に向けて延びた複数の第２リブ部材が、接着剤を介して嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメントの剛性を強化できると共に、プリーツ濾材の撓み量を減少できる。これにより、本発明による集塵機用フィルタエレメントは、濾過工程と逆洗工程が交互に繰り返されても、平面状フィルタの寿命を延ばすことができる。 In the filter element for a dust collector according to the present invention, a plurality of second frame members formed on the outer wall of a bellows-like collar that can be fitted to the inner wall of the pleated filter medium are directed from one end of the second retainer toward the other end. Are arranged with a predetermined interval. And since these 2nd frame members are surface-joined to the pleat filter material by fitting via an adhesive agent, while being able to reinforce the rigidity of a filter element, the amount of bending of a pleat filter material can be reduced. In the filter element for a dust collector according to the present invention, the plurality of second rib members extending from one end portion of the second retainer toward the other end portion so as to be substantially orthogonal to the second frame member include an adhesive. Since the surface is joined to the pleated filter medium by fitting through the pleats, the rigidity of the filter element can be enhanced and the deflection amount of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a planar filter, even if a filtration process and a backwashing process are repeated alternately.

　（４）前記第２リテーナは、当該第２リテーナの内部を長手方向に延びる共に、複数の前記第２枠部材及び複数の前記第２リブ部材に内部から接合して補強する複数の第２板状リブと、を更に有することが好ましい。 (4) The second retainer includes a plurality of second plates that extend in the longitudinal direction inside the second retainer and are reinforced by joining the plurality of second frame members and the plurality of second rib members from the inside. It is preferable to further have a rib.

　（５）前記プリーツ濾材は、通気性が付与されたポリエステル不織布により形成されていることが好ましい。 (5) The pleated filter medium is preferably formed of a polyester nonwoven fabric imparted with air permeability.

　（６）前記プリーツ濾材は、その外面がフッ素コーティングされていることが好ましい。 (6) It is preferable that the outer surface of the pleated filter medium is coated with fluorine.

　本発明による集塵機用フィルタエレメントは、プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成した複数の第１枠部材が接着剤を介してプリーツ濾材に嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメントの剛性を強化できると共に、プリーツ濾材の撓み量を減少できる。これにより、本発明による集塵機用フィルタエレメントは、濾過工程と逆洗工程が交互に繰り返されても、フィルタエレメントの寿命を延ばすことができる。 The filter element for a dust collector according to the present invention includes a plurality of first frame members formed on the outer wall of bellows-like ridges that can be fitted to the inner wall of the pleated filter medium, and the pleated filter medium by being fitted to the pleated filter medium via an adhesive. Therefore, the rigidity of the filter element can be enhanced and the amount of deflection of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a filter element, even if a filtration process and a backwashing process are repeated alternately.

　又、本発明による集塵機用フィルタエレメントは、プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成した複数の第２枠部材が接着剤を介してプリーツ濾材に嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメントの剛性を強化できると共に、プリーツ濾材の撓み量を減少できる。これにより、本発明による集塵機用フィルタエレメントは、濾過工程と逆洗工程が交互に繰り返されても、フィルタエレメントの寿命を延ばすことができる。 In addition, the filter element for the dust collector according to the present invention includes a plurality of second frame members formed on the outer wall of the bellows-like ridges that can be fitted to the inner wall of the pleated filter medium, and are fitted to the pleated filter medium via an adhesive. Since the surface is bonded to the pleated filter medium, the rigidity of the filter element can be enhanced and the amount of deflection of the pleated filter medium can be reduced. Thereby, the filter element for dust collectors by this invention can extend the lifetime of a filter element, even if a filtration process and a backwashing process are repeated alternately.

本発明の第１実施形態による集塵機用フィルタエレメントの構成を示す斜視図である。It is a perspective view which shows the structure of the filter element for dust collectors by 1st Embodiment of this invention. 第１実施形態による集塵機用フィルタエレメントの構成を示す図であり、図２（Ａ）は正面図、図２（Ｂ）は平面図、図２（Ｃ）は右側面図である。It is a figure which shows the structure of the filter element for dust collectors by 1st Embodiment, FIG. 2 (A) is a front view, FIG.2 (B) is a top view, FIG.2 (C) is a right view. 第１実施形態による集塵機用フィルタエレメントの構成を示す斜視分解組立図である。It is a perspective exploded view showing the composition of the filter element for dust collectors by a 1st embodiment. 第１実施形態による集塵機用フィルタエレメントに備わる第１リテーナの構成を示す図であり、図４（Ａ）は、第１リテーナの正面図、図４（Ｂ）は、第１リテーナの平面図、図４（Ｃ）は、第１リテーナの右側面図である。It is a figure which shows the structure of the 1st retainer with which the filter element for dust collectors by 1st Embodiment is equipped, FIG. 4 (A) is a front view of a 1st retainer, FIG.4 (B) is a top view of a 1st retainer, FIG. 4C is a right side view of the first retainer. 本発明の第２実施形態による集塵機用フィルタエレメントの構成を示す斜視図である。It is a perspective view which shows the structure of the filter element for dust collectors by 2nd Embodiment of this invention. 第２実施形態による集塵機用フィルタエレメントの構成を示す図であり、図６（Ａ）は正面図、図６（Ｂ）は平面図、図６（Ｃ）は右側面図である。It is a figure which shows the structure of the filter element for dust collectors by 2nd Embodiment, FIG. 6 (A) is a front view, FIG.6 (B) is a top view, FIG.6 (C) is a right view. 第２実施形態による集塵機用フィルタエレメントの構成を示す斜視分解組立図である。It is a perspective exploded view showing the composition of the filter element for dust collectors by a 2nd embodiment. 第２実施形態による集塵機用フィルタエレメントに備わる第２リテーナの構成を示す図であり、図８（Ａ）は、第２リテーナの正面図、図８（Ｂ）は、第２リテーナの平面図、図８（Ｃ）は、第２リテーナの右側面図である。It is a figure which shows the structure of the 2nd retainer with which the filter element for dust collectors by 2nd Embodiment is equipped, FIG. 8 (A) is a front view of a 2nd retainer, FIG.8 (B) is a top view of a 2nd retainer, FIG. 8C is a right side view of the second retainer.

　以下、図面を参照して本発明を実施するための形態を説明する。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

　［第１実施形態］
　（集塵機用フィルタエレメントの構成）
　最初に、本発明の第１実施形態による集塵機用フィルタエレメントの構成を説明する。図１は、本発明の第１実施形態による集塵機用フィルタエレメントの構成を示す斜視図である。図２は、第１実施形態による集塵機用フィルタエレメントの構成を示す図であり、図２（Ａ）は正面図、図２（Ｂ）は平面図、図２（Ｃ）は右側面図である。 [First Embodiment]
(Configuration of filter element for dust collector)
Initially, the structure of the filter element for dust collectors by 1st Embodiment of this invention is demonstrated. FIG. 1 is a perspective view showing a configuration of a filter element for a dust collector according to a first embodiment of the present invention. 2A and 2B are diagrams illustrating the configuration of the filter element for a dust collector according to the first embodiment, in which FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is a right side view. .

　図３は、第１実施形態による集塵機用フィルタエレメントの構成を示す斜視分解組立図である。図４は、第１実施形態による集塵機用フィルタエレメントに備わる第１リテーナの構成を示す図であり、図４（Ａ）は、第１リテーナの正面図、図４（Ｂ）は、第１リテーナの平面図、図４（Ｃ）は、第１リテーナの右側面図である。 FIG. 3 is a perspective exploded view showing the configuration of the filter element for the dust collector according to the first embodiment. FIG. 4 is a view showing a configuration of a first retainer provided in the filter element for a dust collector according to the first embodiment, FIG. 4 (A) is a front view of the first retainer, and FIG. 4 (B) is a first retainer. FIG. 4C is a right side view of the first retainer.

　図１を参照して、本発明の第１実施形態による集塵機用フィルタエレメント（以下、フィルタエレメントと略称する）１０は、ガスに含まれる粉塵を濾過する濾過面が略垂直状態に配置される。又、フィルタエレメント１０は、前記濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、図示しない集塵機の内部に配置される。 Referring to FIG. 1, in a filter element for a dust collector (hereinafter abbreviated as a filter element) 10 according to a first embodiment of the present invention, a filtration surface for filtering dust contained in gas is arranged in a substantially vertical state. The filter element 10 is disposed inside a dust collector (not shown) so that the extending direction of the ridge formed substantially parallel to the filtration surface substantially coincides with the horizontal direction.

　図１から図４を参照すると、フィルタエレメント１０は、中空平板状の第１リテーナ１と多孔質のプリーツ濾材２を備えている。又、フィルタエレメント１０は、第１キャップ部材３と第２キャップ部材４を備えている。 1 to 4, the filter element 10 includes a hollow flat plate-like first retainer 1 and a porous pleated filter medium 2. The filter element 10 includes a first cap member 3 and a second cap member 4.

　図３又は図４を参照すると、第１リテーナ１は、両端部を開口している。又、第１リテーナ１は、近接するように対向配置された一対の略長方形の平面を含む外周に多数の通風孔１ｈを開口している。図１又は図２を参照すると、プリーツ濾材２は、第１リテーナ１の外周を覆うように配置されている。又、プリーツ濾材２は、山折りと谷折りが周方向に繰り返される蛇腹状の襞２ｂを設けた濾過面を形成している。 Referring to FIG. 3 or FIG. 4, the first retainer 1 is open at both ends. Moreover, the 1st retainer 1 is opening many ventilation holes 1h in the outer periphery containing a pair of substantially rectangular plane opposingly arranged so that it may adjoin. Referring to FIG. 1 or FIG. 2, the pleated filter medium 2 is arranged so as to cover the outer periphery of the first retainer 1. Further, the pleated filter medium 2 forms a filtration surface provided with a bellows-like ridge 2b in which mountain folding and valley folding are repeated in the circumferential direction.

　図１又は図２を参照すると、第１キャップ部材３は、第１リテーナ１の一方の端部に取り付けている。そして、第１キャップ部材３は、第１リテーナ１の内部に連通する長円形状の流通口３ｈを開口している。又、第１キャップ部材３は、プリーツ濾材２の一方の端部を接着剤Ｂで固定している。一方、第２キャップ部材４は、第１リテーナ１の他方の端部を閉塞している。又、第２キャップ部材４は、プリーツ濾材２の他方の端部を接着剤Ｂで固定している。 1 or 2, the first cap member 3 is attached to one end of the first retainer 1. The first cap member 3 opens an oval circulation port 3 h communicating with the inside of the first retainer 1. The first cap member 3 has one end of the pleated filter medium 2 fixed with an adhesive B. On the other hand, the second cap member 4 closes the other end of the first retainer 1. The second cap member 4 has the other end of the pleated filter medium 2 fixed with an adhesive B.

　図３又は図４を参照すると、第１リテーナ１は、複数の輪帯状の第１枠部材１ｓを有している。第１枠部材１ｓは、プリーツ濾材２の内壁に嵌合可能な蛇腹状の襞１ｂを外壁に形成している。これらの第１枠部材１ｓは、第１リテーナ１の一方の端部から他方の端部に向けて、所定の間隔を設けて配置されている。そして、これらの第１枠部材１ｓは、図示しない接着剤を用いてプリーツ濾材２を面接合している。 Referring to FIG. 3 or FIG. 4, the first retainer 1 has a plurality of ring-shaped first frame members 1s. The 1st frame member 1s forms the bellows-like collar 1b which can be fitted in the inner wall of the pleat filter medium 2 on the outer wall. These first frame members 1s are arranged at a predetermined interval from one end portion of the first retainer 1 toward the other end portion. And these 1st frame members 1s are surface-joining the pleat filter material 2 using the adhesive agent which is not shown in figure.

　又、図３又は図４を参照すると、第１リテーナ１は、一対一組の帯状の第１リブ部材１ｒを有している。これらの第１リブ部材１ｒは、複数の第１枠部材１ｓと略直交するように、第１リテーナ１の一方の端部から他方の端部に向けて延びている。そして、これらの第１枠部材１ｓは、図示しない接着剤を用いてプリーツ濾材２を面接合している。なお、第１リブ部材１ｒは、第１枠部材１ｓの襞１ｂの一部を共有している。 Further, referring to FIG. 3 or FIG. 4, the first retainer 1 has a pair of strip-shaped first rib members 1r. These first rib members 1r extend from one end portion of the first retainer 1 toward the other end portion so as to be substantially orthogonal to the plurality of first frame members 1s. And these 1st frame members 1s are surface-joining the pleat filter material 2 using the adhesive agent which is not shown in figure. The first rib member 1r shares a part of the flange 1b of the first frame member 1s.

　更に、図２から図４を参照すると、第１リテーナ１は、二つの第１板状リブ１ｐを有している。これらの第１板状リブ１ｐは、第１リテーナ１の内部を長手方向に延びている。又、これらの第１板状リブ１ｐは、複数の第１枠部材１ｓ及び複数の第１リブ部材１ｒに内部から接合して、第１リテーナ１を補強している。 Furthermore, referring to FIGS. 2 to 4, the first retainer 1 has two first plate-like ribs 1p. These first plate-like ribs 1p extend in the longitudinal direction inside the first retainer 1. Further, these first plate-like ribs 1p reinforce the first retainer 1 by being joined to the plurality of first frame members 1s and the plurality of first rib members 1r from the inside.

　図３又は図４を参照して、第１リテーナ１は、その長さを１５０ｃｍ程度にできる。又、第１リテーナ１は、その幅を５０ｃｍ程度にできる。更に、第１リテーナ１は、その厚さを５ｃｍ程度にできる。第１実施形態によるフィルタエレメント１０は、薄型の平板形フィルタエレメントを提供できる（図１参照）。 Referring to FIG. 3 or FIG. 4, the first retainer 1 can be about 150 cm in length. Further, the width of the first retainer 1 can be about 50 cm. Furthermore, the thickness of the first retainer 1 can be about 5 cm. The filter element 10 according to the first embodiment can provide a thin flat plate filter element (see FIG. 1).

　（集塵機用フィルタエレメントの作用）
　次に、第１実施形態によるフィルタエレメント１０の構成を補足しながら、フィルタエレメント１０の作用及び効果を説明する。 (Operation of filter element for dust collector)
Next, the operation and effect of the filter element 10 will be described while supplementing the configuration of the filter element 10 according to the first embodiment.

　図１を参照すると、フィルタエレメント１０は、例えば、図示しない集塵機の内部に立設した一対の枠体（図示せず）によって、両端部が支持されている。図１に示したフィルタエレメント１０の上段に、別のフィルタエレメント１０を配置することもでき、図１に示したフィルタエレメント１０の下段に、別のフィルタエレメント１０を配置することもできる。又、図１に示したフィルタエレメント１０の前後に、別のフィルタエレメント１０を並列配置することもできる。 Referring to FIG. 1, the filter element 10 is supported at both ends by, for example, a pair of frames (not shown) standing up inside a dust collector (not shown). Another filter element 10 can be arranged in the upper stage of the filter element 10 shown in FIG. 1, and another filter element 10 can be arranged in the lower stage of the filter element 10 shown in FIG. Further, another filter element 10 may be arranged in parallel before and after the filter element 10 shown in FIG.

　図１を参照して、第１キャップ部材３を支持する一方の枠体（図示せず）の内部を負圧にすることで、フィルタエレメント１０は、図示しない集塵機の内部に供給された粉塵を濾過することができる。 Referring to FIG. 1, the negative pressure is applied to the inside of one frame (not shown) that supports the first cap member 3, so that the filter element 10 can remove dust supplied to the inside of a dust collector (not shown). It can be filtered.

　又、図１を参照して、第１キャップ部材３を支持する一方の枠体（図示せず）の内部に、ジェットエア供給管９を配置して、フィルタエレメント１０の内部にジェットエアＪａを吹き付けることで、プリーツ濾材２の濾過面に付着した粉塵を払い落とすことができる。つまり、フィルタエレメント１０を逆洗できる。なお、第１キャップ部材３と一方の枠体（図示せず）との気密性を保つために、円環状のパッキン３ｐを第１キャップ部材３の端面に取り付けておくことが好ましい（図２（Ｃ）参照）。 Referring to FIG. 1, a jet air supply pipe 9 is arranged inside one frame (not shown) that supports the first cap member 3, and jet air Ja is introduced into the filter element 10. By spraying, dust adhering to the filtration surface of the pleated filter medium 2 can be removed. That is, the filter element 10 can be backwashed. In order to maintain airtightness between the first cap member 3 and one frame (not shown), it is preferable to attach an annular packing 3p to the end face of the first cap member 3 (FIG. 2 ( C)).

　図３又は図４を参照すると、第１枠部材１ｓの間隔を第１リテーナ１の開口側に比べて閉塞側を密に配置している。これにより、第１リテーナ１の内部に吹き付けたジェットエアＪａ（図１参照）をプリーツ濾材２の外周から略均等の風圧で放出できる。 Referring to FIG. 3 or FIG. 4, the interval between the first frame members 1 s is closer to the closing side than the opening side of the first retainer 1. As a result, the jet air Ja (see FIG. 1) blown into the first retainer 1 can be discharged from the outer periphery of the pleated filter medium 2 with a substantially uniform wind pressure.

　図３又は図４を参照して、第１リテーナ１は、合成樹脂を成形して、中空平板状の本体１１を得ることが好ましい。本体１１は、金属板を成形してもよい。なお、成形された本体１１は、第１板状リブ１ｐを含んでいる。第１枠部材１ｓ及び第１リブ部材１ｒは、合成樹脂を成形することが好ましい。第１リテーナ１は、第１枠部材１ｓ及び第１リブ部材１ｒを本体１１に接合してもよく、第１枠部材１ｓ、第１リブ部材１ｒ、及び本体１１を一体成形してもよい。 Referring to FIG. 3 or FIG. 4, the first retainer 1 is preferably molded from a synthetic resin to obtain a hollow plate-shaped main body 11. The main body 11 may form a metal plate. The molded body 11 includes a first plate-like rib 1p. The first frame member 1s and the first rib member 1r are preferably formed of a synthetic resin. The first retainer 1 may join the first frame member 1s and the first rib member 1r to the main body 11, or may integrally mold the first frame member 1s, the first rib member 1r, and the main body 11.

　図２又は図３を参照して、プリーツ濾材２は、通気性が付与されたポリエステル不織布を用いることができる。通気性を付与するために、ポリエステル繊維をランダムに熱溶着したポリエステル不織布は、市販されているものを用いることができる。シート状のポリエステル不織布を熱成形して、山折りと谷折りが繰り返される蛇腹状の襞２ｂを設けることができる。次に、このポリエステル不織布を角丸長方形にフォーミングして、両端部を熱溶着することで、図３に示されたような、外周が閉塞されたプリーツ濾材２を得ることができる。なお、山折りと谷折りが繰り返される蛇腹状の襞２ｂを濾材に設けることで、同じ体積であっても濾過面の表面積を増大できる。 Referring to FIG. 2 or FIG. 3, the pleated filter medium 2 can be a polyester nonwoven fabric imparted with air permeability. A commercially available polyester nonwoven fabric in which polyester fibers are randomly welded in order to impart air permeability can be used. A sheet-like polyester nonwoven fabric can be thermoformed to provide a bellows-like ridge 2b in which mountain folds and valley folds are repeated. Next, this polyester nonwoven fabric is formed into a rounded rectangle and both ends are thermally welded, whereby the pleated filter medium 2 whose outer periphery is closed as shown in FIG. 3 can be obtained. In addition, even if it is the same volume, the surface area of a filtration surface can be increased by providing the filter medium with the bellows-like ridge 2b in which mountain folding and valley folding are repeated.

　図３を参照して、外周が閉塞されたプリーツ濾材２を複数の第１枠部材１ｓの外壁に接着した後に、プリーツ濾材２の両端部に第１キャップ部材３及び第２キャップ部材４を接着することで、フィルタエレメント１０を完成できる。なお、プリーツ濾材２は、水及びアルコールで希釈された市販のフッ素樹脂塗料で外面をフッ素コーティングすることが好ましく、通気性を損なうことなく、プリーツ濾材２に撥水性が付与される。 Referring to FIG. 3, after the pleated filter medium 2 whose outer periphery is closed is bonded to the outer walls of the plurality of first frame members 1 s, the first cap member 3 and the second cap member 4 are bonded to both ends of the pleated filter medium 2. Thus, the filter element 10 can be completed. The pleated filter medium 2 is preferably fluorine-coated on the outer surface with a commercially available fluororesin paint diluted with water and alcohol, and the pleated filter medium 2 is imparted with water repellency without impairing air permeability.

　第１実施形態によるフィルタエレメント１０は、プリーツ濾材２の内壁に嵌合可能な蛇腹状の襞１ｂを外壁に形成した複数の第１枠部材１ｓが接着剤を介してプリーツ濾材２に嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメント１０の剛性を強化できると共に、プリーツ濾材２の撓み量を減少できる。これにより、第１実施形態によるフィルタエレメント１０は、濾過工程と逆洗工程が交互に繰り返されても、フィルタエレメント１０の寿命を延ばすことができる。 In the filter element 10 according to the first embodiment, a plurality of first frame members 1s formed on the outer wall with bellows-like ridges 1b that can be fitted to the inner wall of the pleated filter medium 2 are fitted to the pleated filter medium 2 via an adhesive. Thus, since the surface is bonded to the pleated filter medium, the rigidity of the filter element 10 can be enhanced and the amount of bending of the pleated filter medium 2 can be reduced. Thereby, the filter element 10 by 1st Embodiment can extend the lifetime of the filter element 10 even if a filtration process and a backwashing process are repeated alternately.

　［第２実施形態］
　（集塵機用フィルタエレメントの構成）
　次に、本発明の第２実施形態による集塵機用フィルタエレメントの構成を説明する。図５は、本発明の第２実施形態による集塵機用フィルタエレメントの構成を示す斜視図である。図６は、第２実施形態による集塵機用フィルタエレメントの構成を示す図であり、図６（Ａ）は正面図、図６（Ｂ）は平面図、図６（Ｃ）は右側面図である。 [Second Embodiment]
(Configuration of filter element for dust collector)
Next, the structure of the filter element for dust collectors by 2nd Embodiment of this invention is demonstrated. FIG. 5 is a perspective view showing a configuration of a filter element for a dust collector according to a second embodiment of the present invention. 6A and 6B are diagrams showing the configuration of the filter element for a dust collector according to the second embodiment. FIG. 6A is a front view, FIG. 6B is a plan view, and FIG. 6C is a right side view. .

　図７は、第２実施形態による集塵機用フィルタエレメントの構成を示す斜視分解組立図である。図８は、第２実施形態による集塵機用フィルタエレメントに備わる第２リテーナの構成を示す図であり、図８（Ａ）は、第２リテーナの正面図、図８（Ｂ）は、第２リテーナの平面図、図８（Ｃ）は、第２リテーナの右側面図である。 FIG. 7 is a perspective exploded view showing the configuration of the filter element for a dust collector according to the second embodiment. FIG. 8 is a view showing a configuration of a second retainer provided in the filter element for a dust collector according to the second embodiment, FIG. 8A is a front view of the second retainer, and FIG. 8B is a second retainer. FIG. 8C is a right side view of the second retainer.

　図５を参照して、本発明の第２実施形態によるフィルタエレメント２０は、濾過面が略鉛直状態に配置される。又、フィルタエレメント２０は、前記濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、図示しない集塵機の内部に配置される。 Referring to FIG. 5, the filter element 20 according to the second embodiment of the present invention has the filtration surface arranged in a substantially vertical state. The filter element 20 is disposed inside a dust collector (not shown) such that the extending direction of the ridge formed substantially parallel to the filtration surface substantially coincides with the horizontal direction.

　図５から図８を参照すると、フィルタエレメント２０は、中空平板状の第２リテーナ５と多孔質のプリーツ濾材２を備えている。又、フィルタエレメント２０は、第１キャップ部材３と第２キャップ部材４を備えている。 5 to 8, the filter element 20 includes a hollow flat plate-like second retainer 5 and a porous pleated filter medium 2. The filter element 20 includes a first cap member 3 and a second cap member 4.

　図７又は図８を参照すると、第２リテーナ５は、両端部を開口している。又、第２リテーナ５は、近接するように対向配置された一対の略長方形の平面を含むように骨組みされている。図５又は図６を参照すると、プリーツ濾材２は、第２リテーナ５の外周を覆うように配置されている。又、プリーツ濾材２は、山折りと谷折りが周方向に繰り返される蛇腹状の襞２ｂを設けた濾過面を形成している。 Referring to FIG. 7 or FIG. 8, the second retainer 5 is open at both ends. Moreover, the 2nd retainer 5 is framed so that a pair of substantially rectangular planes opposingly arranged so that it may adjoin may be included. Referring to FIG. 5 or FIG. 6, the pleated filter medium 2 is arranged so as to cover the outer periphery of the second retainer 5. Further, the pleated filter medium 2 forms a filtration surface provided with a bellows-like ridge 2b in which mountain folding and valley folding are repeated in the circumferential direction.

　図５又は図６を参照すると、第１キャップ部材３は、第２リテーナ５の一方の端部に取り付けている。そして、第１キャップ部材３は、第２リテーナ５の内部に連通する長円形状の流通口３ｈを開口している。又、第１キャップ部材３は、プリーツ濾材２の一方の端部を接着剤Ｂで固定している。一方、第２キャップ部材４は、第２リテーナ５の他方の端部を閉塞している。又、第２キャップ部材４は、プリーツ濾材２の他方の端部を接着剤Ｂで固定している。 Referring to FIG. 5 or FIG. 6, the first cap member 3 is attached to one end of the second retainer 5. The first cap member 3 opens an oval circulation port 3 h communicating with the inside of the second retainer 5. The first cap member 3 has one end of the pleated filter medium 2 fixed with an adhesive B. On the other hand, the second cap member 4 closes the other end of the second retainer 5. The second cap member 4 has the other end of the pleated filter medium 2 fixed with an adhesive B.

　図５又は図６を参照すると、第２リテーナ５は、複数の輪帯状の第２枠部材５ｓを有している。第２枠部材５ｓは、プリーツ濾材２の内壁に嵌合可能な蛇腹状の襞５ｂを外壁に形成している。これらの第２枠部材５ｓは、第２リテーナ５の一方の端部から他方の端部に向けて、所定の間隔を設けて配置されている。そして、これらの第２リテーナ５は、図示しない接着剤を用いてプリーツ濾材２を面接合している。 Referring to FIG. 5 or FIG. 6, the second retainer 5 has a plurality of annular second frame members 5s. The second frame member 5 s has a bellows-like flange 5 b that can be fitted to the inner wall of the pleated filter medium 2 on the outer wall. These second frame members 5s are arranged at a predetermined interval from one end portion of the second retainer 5 toward the other end portion. And these 2nd retainers 5 surface-join the pleat filter medium 2 using the adhesive agent which is not shown in figure.

　又、図５又は図６を参照すると、第２リテーナ５は、一対一組の帯状の第２リブ部材５ｒを有している。これらの第２リブ部材５ｒは、複数の第２枠部材５ｓと略直交するように、第２リテーナ５の一方の端部から他方の端部に向けて延びている。そして、これらの第２枠部材５ｓは、図示しない接着剤を用いてプリーツ濾材２を面接合している。なお、第２リブ部材５ｒは、第２枠部材５ｓの襞５ｂの一部を共有している。 Further, referring to FIG. 5 or FIG. 6, the second retainer 5 has a pair of strip-like second rib members 5r. These second rib members 5r extend from one end portion of the second retainer 5 toward the other end portion so as to be substantially orthogonal to the plurality of second frame members 5s. And these 2nd frame members 5s surface-join the pleat filter medium 2 using the adhesive agent which is not shown in figure. The second rib member 5r shares a part of the flange 5b of the second frame member 5s.

　更に、図６から図８を参照すると、第２リテーナ５は、二つの第２板状リブ５ｐを有している。これらの第２板状リブ５ｐは、第２リテーナ５の内部を長手方向に延びている。又、これらの第２板状リブ５ｐは、複数の第２枠部材５ｓ及び複数の第２リブ部材５ｒに内部から接合して、第２リテーナ５を補強している。 Furthermore, referring to FIGS. 6 to 8, the second retainer 5 has two second plate-like ribs 5p. These second plate-like ribs 5p extend in the longitudinal direction inside the second retainer 5. These second plate-like ribs 5p are joined to the plurality of second frame members 5s and the plurality of second rib members 5r from the inside to reinforce the second retainer 5.

　図７又は図８を参照して、第２リテーナ５は、その長さを１５０ｃｍ程度にできる。又、第２リテーナ５は、その幅を５０ｃｍ程度にできる。更に、第２リテーナ５は、その厚さを５ｃｍ程度にできる。第２実施形態によるフィルタエレメント２０は、薄型の平板形フィルタエレメントを提供できる（図５参照）。 7 or 8, the length of the second retainer 5 can be about 150 cm. The width of the second retainer 5 can be about 50 cm. Furthermore, the thickness of the second retainer 5 can be about 5 cm. The filter element 20 according to the second embodiment can provide a thin flat plate filter element (see FIG. 5).

　（集塵機用フィルタエレメントの作用）
　次に、第２実施形態によるフィルタエレメント２０の構成を補足しながら、フィルタエレメント２０の作用及び効果を説明する。 (Operation of filter element for dust collector)
Next, the operation and effect of the filter element 20 will be described while supplementing the configuration of the filter element 20 according to the second embodiment.

　図５を参照すると、フィルタエレメント２０は、例えば、図示しない集塵機の内部に立設した一対の枠体（図示せず）によって、両端部が支持されている。図５に示したフィルタエレメント２０の上段に、別のフィルタエレメント２０を配置することもでき、図５に示したフィルタエレメント２０の下段に、別のフィルタエレメント２０を配置することもできる。又、図５に示したフィルタエレメント２０の前後に、別のフィルタエレメント２０を並列配置することもできる。 Referring to FIG. 5, the filter element 20 is supported at both ends by, for example, a pair of frames (not shown) standing inside a dust collector (not shown). Another filter element 20 can be arranged on the upper stage of the filter element 20 shown in FIG. 5, and another filter element 20 can be arranged on the lower stage of the filter element 20 shown in FIG. Further, another filter element 20 can be arranged in parallel before and after the filter element 20 shown in FIG.

　図５を参照して、第１キャップ部材３を支持する一方の枠体（図示せず）の内部を負圧にすることで、フィルタエレメント２０は、図示しない集塵機の内部に供給された粉塵を濾過することができる。 With reference to FIG. 5, the negative pressure is applied to the inside of one frame (not shown) that supports the first cap member 3, so that the filter element 20 can remove dust supplied to the inside of a dust collector (not shown). It can be filtered.

　又、図５を参照して、第１キャップ部材３を支持する一方の枠体（図示せず）の内部に、ジェットエア供給管９を配置して、フィルタエレメント２０の内部にジェットエアＪａを吹き付けることで、プリーツ濾材２の濾過面に付着した粉塵を払い落とすことができる。つまり、フィルタエレメント２０を逆洗できる。なお、第１キャップ部材３と一方の枠体（図示せず）との気密性を保つために、円環状のパッキン３ｐを第１キャップ部材３の端面に取り付けておくことが好ましい（図６（Ｃ）参照）。 Referring to FIG. 5, a jet air supply pipe 9 is arranged inside one frame (not shown) that supports the first cap member 3, and jet air Ja is put inside the filter element 20. By spraying, dust adhering to the filtration surface of the pleated filter medium 2 can be removed. That is, the filter element 20 can be backwashed. In order to maintain airtightness between the first cap member 3 and one frame (not shown), it is preferable to attach an annular packing 3p to the end face of the first cap member 3 (FIG. 6 ( C)).

　図７又は図８を参照すると、第２枠部材５ｓの間隔を第２リテーナ５の開口側に比べて閉塞側を密に配置している。これにより、第２リテーナ５の内部に吹き付けたジェットエアＪａ（図５参照）をプリーツ濾材２の外周から略均等の風圧で放出できる。 Referring to FIG. 7 or FIG. 8, the interval between the second frame members 5 s is closer to the closing side than the opening side of the second retainer 5. Thereby, the jet air Ja (see FIG. 5) blown into the second retainer 5 can be discharged from the outer periphery of the pleated filter medium 2 with a substantially uniform wind pressure.

　図７又は図８を参照して、第２リテーナ５は、合成樹脂を成形して、骨組みされた中空平板状の本体５１を得ることが好ましい。本体５１は、金属板を成形してもよい。なお、成形された本体５１は、第２板状リブ５ｐを含んでいる。同様に、第２枠部材５ｓ及び第２リブ部材５ｒは、合成樹脂を成形することが好ましい。第２リテーナ５は、第２枠部材５ｓ及び第２リブ部材５ｒを本体５１に接合してもよく、第２枠部材５ｓ、第２リブ部材５ｒ、及び本体１５を一体成形してもよい。 Referring to FIG. 7 or FIG. 8, it is preferable that the second retainer 5 is obtained by molding a synthetic resin to obtain a framed hollow flat plate-like main body 51. The main body 51 may form a metal plate. The molded main body 51 includes the second plate-like rib 5p. Similarly, the second frame member 5s and the second rib member 5r are preferably formed of a synthetic resin. The second retainer 5 may join the second frame member 5s and the second rib member 5r to the main body 51, and may integrally mold the second frame member 5s, the second rib member 5r, and the main body 15.

　図６又は図７を参照して、プリーツ濾材２は、通気性が付与されたポリエステル不織布を用いることができる。通気性を付与するために、ポリエステル繊維をランダムに熱溶着したポリエステル不織布は、市販されているものを用いることができる。シート状のポリエステル不織布を熱成形して、山折りと谷折りが繰り返される蛇腹状の襞２ｂを設けることができる。次に、このポリエステル不織布を角丸長方形にフォーミングして、両端部を熱溶着することで、図７に示されたような、外周が閉塞されたプリーツ濾材２を得ることができる。なお、山折りと谷折りが繰り返される蛇腹状の襞２ｂを濾材に設けることで、同じ体積であっても濾過面の表面積を増大できる。 Referring to FIG. 6 or FIG. 7, the pleated filter medium 2 can be made of a polyester nonwoven fabric imparted with air permeability. A commercially available polyester nonwoven fabric in which polyester fibers are randomly welded in order to impart air permeability can be used. A sheet-like polyester nonwoven fabric can be thermoformed to provide a bellows-like ridge 2b in which mountain folds and valley folds are repeated. Next, this polyester nonwoven fabric is formed into a rounded rectangle, and both ends are thermally welded, whereby the pleated filter medium 2 whose outer periphery is closed as shown in FIG. 7 can be obtained. In addition, even if it is the same volume, the surface area of a filtration surface can be increased by providing the filter medium with the bellows-like ridge 2b in which mountain folding and valley folding are repeated.

　図７を参照して、外周が閉塞されたプリーツ濾材２を複数の第２枠部材５ｓの外壁に接着した後に、プリーツ濾材２の両端部に第１キャップ部材３及び第２キャップ部材４を接着することで、フィルタエレメント２０を完成できる。なお、プリーツ濾材２は、水及びアルコールで希釈された市販のフッ素樹脂塗料で外面をフッ素コーティングすることが好ましく、通気性を損なうことなく、プリーツ濾材２に撥水性が付与される。 Referring to FIG. 7, after the pleated filter medium 2 whose outer periphery is closed is bonded to the outer walls of the plurality of second frame members 5 s, the first cap member 3 and the second cap member 4 are bonded to both ends of the pleated filter medium 2. Thus, the filter element 20 can be completed. The pleated filter medium 2 is preferably fluorine-coated on the outer surface with a commercially available fluororesin paint diluted with water and alcohol, and the pleated filter medium 2 is imparted with water repellency without impairing air permeability.

　第２実施形態によるフィルタエレメント２０は、プリーツ濾材２の内壁に嵌合可能な蛇腹状の襞１ｂを外壁に形成した複数の第２枠部材５ｓが接着剤を介してプリーツ濾材２に嵌合することで、プリーツ濾材に面接合しているので、フィルタエレメント２０の剛性を強化できると共に、プリーツ濾材２の撓み量を減少できる。これにより、第２実施形態によるフィルタエレメント２０は、濾過工程と逆洗工程が交互に繰り返されても、フィルタエレメント２０の寿命を延ばすことができる。又、第２実施形態による第２リテーナ５は、第１実施形態による第１リテーナ１と比べて成形が容易であるという利点がある。 In the filter element 20 according to the second embodiment, a plurality of second frame members 5s formed on the outer wall with bellows-like ridges 1b that can be fitted to the inner wall of the pleated filter medium 2 are fitted to the pleated filter medium 2 via an adhesive. As a result, since the surface is bonded to the pleated filter medium, the rigidity of the filter element 20 can be enhanced and the amount of bending of the pleated filter medium 2 can be reduced. Thereby, the filter element 20 by 2nd Embodiment can extend the lifetime of the filter element 20 even if a filtration process and a backwashing process are repeated alternately. Moreover, the 2nd retainer 5 by 2nd Embodiment has the advantage that shaping | molding is easy compared with the 1st retainer 1 by 1st Embodiment.

　本発明による集塵機用フィルタエレメントは、例えば、塗装ブースに設置された集塵機に供給される付着性の強い粉塵を濾過すると共に、これらの粉塵を回収することに適している。本発明は、耐久性に優れた集塵機用フィルタエレメントを提供できる。 The filter element for a dust collector according to the present invention is suitable, for example, for filtering dust having strong adhesion supplied to a dust collector installed in a painting booth and collecting the dust. ADVANTAGE OF THE INVENTION This invention can provide the filter element for dust collectors excellent in durability.

　本発明による集塵機用フィルタエレメントは、ガスに含まれる付着性の強い粉塵を濾過するだけでなく、空気中に含まれる塵芥を濾過することができる。 The filter element for a dust collector according to the present invention can filter not only dust with strong adhesion contained in gas but also dust contained in air.

　１　第１リテーナ
　１ｂ　蛇腹状の襞
　１ｈ　通風孔
　１ｓ　第１枠部材
　２　プリーツ濾材
　２ｂ　蛇腹状の襞
　３　第１キャップ部材
　３ｈ　流通口
　４　第２キャップ部材
　１０　フィルタエレメント DESCRIPTION OF SYMBOLS 1 1st retainer 1b Bellows-like collar 1h Ventilation hole 1s 1st frame member 2 Pleated filter medium 2b Bellows-shaped collar 3 1st cap member 3h Flow port 4 2nd cap member 10 Filter element

Claims (6)

　濾過面が略鉛直状態に配置されると共に、前記濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、集塵機の内部に配置される集塵機用フィルタエレメントであって、
　両端部を開口すると共に、近接するように対向配置された一対の略矩形の平面を含む外周に多数の通風孔を開口した中空平板状の第１リテーナと、
　前記第１リテーナの外周を覆うように配置され、山折りと谷折りが周方向に繰り返される蛇腹状の襞を設けた濾過面を形成する多孔質のプリーツ濾材と、
　前記第１リテーナの一方の端部に取り付け、当該第１リテーナの内部に連通する流通口を開口すると共に、前記プリーツ濾材の一方の端部を固定する第１キャップ部材と、
　前記第１リテーナの他方の端部を閉塞すると共に、前記プリーツ濾材の他方の端部を固定する第２キャップ部材と、を備え、
　前記第１リテーナは、前記プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成し、一方の端部から他方の端部に向けて、所定の間隔を設けて配置された複数の輪帯状の第１枠部材を有し、
　これらの第１枠部材は、接着剤を介して嵌合することで、前記プリーツ濾材に面接合している集塵機用フィルタエレメント。 A filter element for a dust collector disposed in a dust collector so that a filtration surface is arranged in a substantially vertical state and a direction in which a ridge formed substantially parallel to the filtration surface extends substantially coincides with a horizontal direction. ,
A hollow flat plate-like first retainer having a large number of ventilation holes on the outer periphery including a pair of substantially rectangular planes that are opposed to each other so as to open both ends.
A porous pleat filter medium that is arranged so as to cover the outer periphery of the first retainer and forms a filtration surface provided with a bellows-like ridge in which mountain folding and valley folding are repeated in the circumferential direction;
A first cap member attached to one end of the first retainer, opening a flow port communicating with the interior of the first retainer, and fixing one end of the pleat filter medium;
A second cap member that closes the other end of the first retainer and fixes the other end of the pleated filter medium;
The first retainer includes a plurality of bellows-like ridges that can be fitted to the inner wall of the pleated filter medium on the outer wall, and is arranged at a predetermined interval from one end to the other end. A ring-shaped first frame member;
These first frame members are filter elements for a dust collector that are surface-bonded to the pleated filter medium by being fitted through an adhesive. 　前記第１リテーナは、
　複数の前記第１枠部材と略直交するように、一方の端部から他方の端部に向けて延び、接着剤を介して嵌合することで、前記プリーツ濾材に面接合している複数の帯状の第１リブ部材と、
　当該第１リテーナの内部を長手方向に延びる共に、複数の前記第１枠部材及び複数の前記第１リブ部材に内部から接合して補強する複数の第１板状リブと、を更に有する請求項１記載の集塵機用フィルタエレメント。 The first retainer is
A plurality of the plurality of first frame members extending from one end portion to the other end portion so as to be substantially orthogonal to each other and fitted through an adhesive, thereby being surface-bonded to the pleated filter medium. A strip-shaped first rib member;
A plurality of first plate-like ribs that extend in the longitudinal direction inside the first retainer and that are joined and reinforced from the inside to the plurality of first frame members and the plurality of first rib members. The filter element for a dust collector according to 1. 　濾過面が略鉛直状態に配置されると共に、前記濾過面に略平行に形成された襞の延びる方向が水平方向と略一致するように、集塵機の内部に配置される集塵機用フィルタエレメントであって、
　両端部を開口すると共に、近接するように対向配置された一対の略矩形の平面を含むように骨組みされた中空平板状の第２リテーナと、
　前記第２リテーナの外周を覆うように配置され、山折りと谷折りが周方向に繰り返される蛇腹状の襞を設けた濾過面を形成する多孔質のプリーツ濾材と、
　前記第２リテーナの一方の端部に取り付け、当該第２リテーナの内部に連通する流通口を開口すると共に、前記プリーツ濾材の一方の端部を固定する第１キャップ部材と、
　前記第２リテーナの他方の端部を閉塞すると共に、前記プリーツ濾材の他方の端部を固定する第２キャップ部材と、を備え、
　前記第２リテーナは、
　前記プリーツ濾材の内壁に嵌合可能な蛇腹状の襞を外壁に形成し、一方の端部から他方の端部に向けて所定の間隔を設けて配置され、接着剤を介して嵌合することで、前記プリーツ濾材に面接合した複数の輪帯状の第２枠部材と、
　複数の前記第２枠部材と略直交するように、一方の端部から他方の端部に向けて延び、接着剤を介して嵌合することで、前記プリーツ濾材に面接合した複数の帯状の第２リブ部材と、を有する集塵機用フィルタエレメント。 A filter element for a dust collector disposed in a dust collector so that a filtration surface is arranged in a substantially vertical state and a direction in which a ridge formed substantially parallel to the filtration surface extends substantially coincides with a horizontal direction. ,
A hollow flat plate-like second retainer that is framed so as to include a pair of substantially rectangular planes that are opposed to each other so as to open both ends.
A porous pleat filter medium that is arranged so as to cover the outer periphery of the second retainer and forms a filtration surface provided with a bellows-like ridge in which mountain folds and valley folds are repeated in the circumferential direction;
A first cap member attached to one end of the second retainer, opening a flow port communicating with the inside of the second retainer, and fixing one end of the pleat filter medium;
A second cap member that closes the other end of the second retainer and fixes the other end of the pleated filter medium,
The second retainer is
A bellows-like ridge that can be fitted to the inner wall of the pleated filter medium is formed on the outer wall, arranged at a predetermined interval from one end to the other, and fitted via an adhesive. A plurality of ring-shaped second frame members surface-bonded to the pleat filter medium;
A plurality of strip-shaped surfaces that are surface-bonded to the pleat filter medium by extending from one end to the other end so as to be substantially orthogonal to the plurality of second frame members and being fitted via an adhesive. A filter element for a dust collector, comprising: a second rib member. 　前記第２リテーナは、
　当該第２リテーナの内部を長手方向に延びる共に、複数の前記第２枠部材及び複数の前記第２リブ部材に内部から接合して補強する複数の第２板状リブと、を更に有する請求項３記載の集塵機用フィルタエレメント。 The second retainer is
A plurality of second plate-like ribs that extend in the longitudinal direction inside the second retainer and are reinforced by being joined to the plurality of second frame members and the plurality of second rib members from the inside. The filter element for a dust collector as described in 3. 　前記プリーツ濾材は、通気性が付与されたポリエステル不織布により形成されている請求項１から３のいずれかに記載の集塵機用フィルタエレメント。 The filter element for a dust collector according to any one of claims 1 to 3, wherein the pleated filter medium is formed of a polyester nonwoven fabric imparted with air permeability. 　前記プリーツ濾材は、その外面がフッ素コーティングされている請求項５記載の集塵機用フィルタエレメント。 The filter element for a dust collector according to claim 5, wherein the outer surface of the pleated filter medium is coated with fluorine.
PCT/JP2012/066877 2012-07-02 2012-07-02 Filter element for dust collectors Ceased WO2014006671A1 (en)

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