JP2017039094A - Powder feeding device and waste liquid treating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power feeding device and a waste liquid treating system capable of preventing a bridge phenomenon of an adsorbent.SOLUTION: A powder feeding device 50 includes a hopper 52 that has a hopper main body 67 formed in a semi-quadrangular pyramid shape in which two neighboring vertical sidewalls 65 and two neighboring sloping sidewalls 66 are disposed to oppose each other in a diagonal direction. A waste fluid treating system includes: an adsorption treatment device that has a treatment tank to which a treatment target liquid and an absorbent for performing adsorption treatment of foreign matters contained in the treatment target liquid are fed individually; and the powder feeding device 50 for feeding the adsorbent to the treatment tank.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a powder supply apparatus suitable for supplying an adsorbent and a waste liquid system using the same.

  Conventionally, a waste liquid treatment system that adsorbs foreign matter contained in waste liquid after use by an adsorbent and separates the foreign matter together with the adsorbent is a coating liquid for electrophotographic photoreceptors, and an aqueous paint used for vehicle coating (See, for example, Patent Document 1).

  In such a waste liquid treatment system, the liquid to be treated is supplied to the treatment tank for performing the adsorption treatment, the adsorbent is supplied to the treatment tank, and the adsorbent is processed while stirring the liquid to be treated and the adsorbent. After performing the adsorption process to adsorb foreign matter contained in the target liquid, the treated liquid after the adsorption process is supplied from the treatment tank to the filtration device, and the adsorbent that adsorbs the foreign matter is separated by the filtration device. ing.

  By the way, in the conventional waste liquid treatment system, it is necessary to supply the adsorbent to the treatment tank.

  Therefore, the present applicant has proposed a waste liquid treatment system in which an operator can supply a predetermined amount of adsorbent to the treatment tank by means of a measuring cup or the like (Japanese Patent Application No. 2015-031739).

  In such a waste liquid treatment system, there is a problem that it takes a lot of labor and time for an operator to supply a predetermined amount of adsorbent to the treatment tank using a measuring cup or the like. In order to cope with such problems, it is conceivable to provide a powder supply apparatus having a hopper. (For example, refer to Patent Document 2).

JP 2002-365819 A JP 2002-137831 A

  However, the conventional powder supply apparatus has a problem that it may not be possible to prevent the adsorbent bridging phenomenon that tends to occur near the lower opening of the hopper.

  This invention is made | formed in view of such a point, and it aims at providing the powder supply apparatus and waste liquid processing system which can prevent the bridge | bridging phenomenon of adsorption agent.

  In order to achieve the above-described object, a powder supply apparatus according to the present invention is a powder supply apparatus having a hopper that stores an adsorbent, and the hopper includes two adjacent vertical side walls and two adjacent inclinations. It is characterized by having a hopper body formed in a half-square pyramid shape with its side wall facing diagonally.

  By adopting such a configuration, it is possible to reliably prevent the adsorbent bridging phenomenon that is likely to occur near the lower opening due to the shape effect of the hopper body.

  In the present invention, a fixed amount supply device is attached to a lower portion of the hopper body, and a lower opening provided in the hopper main body communicates with a powder supply port provided in the constant amount supply device. It can be set as a structure. And by adopting such a configuration, the adsorbent accommodated in the hopper body can be reliably and easily supplied to the fixed amount supply device, and the fixed amount supply device is set in advance necessary for the adsorption process. The amount of adsorbent can be discharged easily and reliably.

  Further, in the present invention, a cassette magazine formed in a bottomed cylindrical shape for supplying a preset amount of adsorbent to the hopper body may be attached to the upper part of the hopper body. it can. And by employ | adopting such a structure, supply of the adsorbent with respect to a hopper can be performed efficiently and easily.

  In the present invention, the cassette magazine may be provided with a shutter that is movable in the horizontal direction at the bottom. And by employ | adopting such a structure, since the preset quantity of adsorbent can be supplied to a hopper main body collectively, supply of the adsorbent with respect to a hopper can be performed efficiently and easily.

  Further, the waste liquid treatment system of the present invention includes an adsorption treatment apparatus including a treatment tank to which a treatment target liquid to be used for waste liquid treatment and an adsorbent for adsorbing foreign substances contained in the treatment target liquid are individually supplied. A waste liquid treatment system having a powder supply device for supplying an adsorbent to the treatment tank, wherein the powder supply device is the powder supply device of the present invention. By adopting such a configuration, the bridging phenomenon of the adsorbent can be surely prevented, so that high performance can be easily achieved.

  According to the filtration device and the waste liquid treatment system of the present invention, there are excellent effects such as the ability to reliably prevent the bridging phenomenon of the adsorbent.

The schematic diagram which shows schematic structure of embodiment of the waste liquid processing system which concerns on this invention using the powder supply apparatus which concerns on this invention Front view of the main part of FIG. Plan view of the main part of FIG. Right side view of the main part of FIG. Left side view of the main part of FIG. The enlarged view which shows the principal part of the powder supply apparatus of FIG. Side view of FIG. The top view which shows the principal part of the hopper main body of FIG. Schematic which shows the principal part of the filtration apparatus of FIG. The top view which shows the principal part of FIG.

  The present invention will be described below with reference to embodiments shown in the drawings.

  An embodiment of the waste liquid treatment system of the present invention using the powder supply apparatus according to the present invention will be described with reference to FIGS.

  The waste liquid treatment system 1 (hereinafter, simply referred to as “system 1”) of the present embodiment is a treatment target liquid S to be used for waste liquid treatment, which is a waste liquid of a water-based paint after being used for painting a vehicle in a painting booth. The small movable thing used for the waste liquid process of this process target liquid S is illustrated.

  As shown in FIG. 1 to FIG. 5, the system 1 of the present embodiment is configured such that an adsorption processing device 3, a filtration device 4, a supply pump 5, and a movable carriage 2 (hand carriage) as a frame, A discharge pump 6 and an operation panel 7 (FIG. 3) are provided.

  The carriage 2 is for transporting the system 1 and has a base plate 11 made of, for example, metal. The base plate 11 serves as a base of the lower part, and is formed in a planar rectangular shape that is long in the moving direction shown in the left-right direction in FIG. Then, casters 12 as moving wheels are respectively attached to the lower portions of the four corners of the base plate 11. Of the four casters 12, two casters 12 arranged on the leading side in the moving direction shown on the left side in FIG. 2 are fixed wheels, and two casters 12 arranged on the trailing side in the moving direction shown on the right side in FIG. The two casters 12 are swivelable free wheels. Further, a foot stopper 13 (floor lock) for simply fixing the position of the carriage 2 is attached to an intermediate portion between the two casters 12 which are free wheels.

  On the right side of FIG. 2 on the upper surface of the base plate 11, a processing base 15 formed in a frame shape for supporting the adsorption processing apparatus 3 from below is attached. The height position of the upper surface of the processing base 15 is, for example, about 400 mm from the upper surface of the base plate 11.

  A handle 17 that is gripped and operated by an operator when the carriage 2 is traveling is attached to an upper part of the rear end face of the processing base 15. The handle 17 is formed, for example, by bending a metal pipe or the like, and a grip portion 17a extending horizontally is provided on the upper portion. The height of the grip portion 17a is, for example, about 850 mm so that it can be gripped and operated by an operator.

  The adsorption processing device 3 is for adsorbing foreign matter such as a coating soot contained in the processing target liquid S, and includes a processing tank 21 and a stirring means 23.

  The processing tank 21 is supplied separately with the processing target liquid S and the adsorbent used for the adsorption processing of the processing target liquid S. For example, the processing target liquid S has a relatively small capacity of about 60 L (liter). It has a tank body 25 formed in a bottomed cylindrical shape for accommodating. The tank body 25 is formed in, for example, a cylindrical shape having an outer diameter of about 550 mm, and the bottom thereof is formed in a conical shape protruding downward. The bottom of the tank body 25 is supported from below by the processing stand 15.

  In the tank body 25, a first processing for detecting that the supply amount of the processing target liquid S supplied to the processing tank 21 has reached a preset amount, for example, 60 L, by displacement of the liquid level. A float type liquid level switch 27 as a sensor and a lead type level sensor as a second sensor for processing that functions as a safety device for detecting an upper limit abnormality of the liquid level caused by a failure of the float type liquid level switch 27, for example. 28 are provided. Each of the float type liquid level switch 27 and the lead type level sensor 28 is attached to the upper portion of the tank body 25 by sensor brackets 27a and 28a.

  In the central portion of the bottom of the tank body 25, a filtration target liquid (for subjecting the processed liquid, which is a mixed liquid of the processing target liquid S and the adsorbent contained in the tank body 25 after the adsorption process) to the filtration ( Hereinafter, it is referred to as “stock solution G”), and a stock solution discharge pipe 30 for discharging the stock solution G is disposed with its tip directed downward. Here, the solid particles to be separated contained in the stock solution G of the present embodiment are adsorbents that have adsorbed foreign substances mainly by adsorption treatment. The tip (lower end) of the stock solution discharge pipe 30 is a first valve composed of a ball valve or the like that is operated by air pressure (hereinafter simply referred to as “pneumatic pressure”) using compressed air for opening and closing the discharge channel of the stock solution G. Connected to the inlet of the stop valve 31, and to the outlet of the first stop valve 31, one end of a stock solution outlet pipe 32 for guiding the stock solution G to the filtration device 4 is connected.

  The other end of the stock solution outlet pipe 32 is detachably connected to one of the two input ports of the first switching valve 33 including a three-way valve such as a three-way ball valve operated by air pressure. ing. The first switching valve 33 is used to change the fluid directed to the supply pump 5 to either the processing target liquid S or the stock solution G. For this reason, the other end of the stock solution outlet pipe 32 is detachably connected to one of the two input ports of the first switching valve 33, and the treatment liquid suction hose 34 is connected to the other of the two input ports. One end of each is detachably connected. The other end of the processing liquid suction hose 34 is disposed below the liquid level of the processing liquid storage tank 35 that stores the processing target liquid S when the system 1 is in operation. One end of the first transfer pipe 36 is detachably connected to the output port of the first switching valve 33, and the other end of the first transfer pipe 36 is detachably connected to the suction port of the supply pump 5. Has been. As the supply pump 5 of the present embodiment, a self-feeding diaphragm pump that is pneumatically driven is used.

  One end of a second transfer pipe 37 is detachably connected to the discharge port of the supply pump 5, and the other end of the second transfer pipe 37 is connected to a three-way valve such as a three-way ball valve operated by air pressure. The second switching valve 38 is detachably connected to the input port. When the fluid discharged from the supply pump 5 is the processing target liquid S, the second switching valve 38 is used as a flow path toward the processing tank 21 and the fluid discharged from the supply pump 5 is the stock solution G. Is for making the flow path a flow path toward the filtration device 4. For this reason, the other end of the second transfer pipe 37 is detachably connected to the input port of the second switching valve 38. One end of a processing liquid supply pipe 39 that supplies the processing target liquid S to the processing tank 21 is detachably connected to one of the two output ports of the second switching valve 38. The other end of the tube 39 is disposed above the maximum liquid level inside the processing tank 21. One end of a stock solution supply hose 40 for supplying the stock solution G to the filtration device 4 is detachably connected to the other of the two output ports of the second switching valve 38. The end is detachably connected to one end of a stock solution supply pipe 41 attached to the processing base 15 so as to be movable up and down along the vertical direction.

  The stirring means 23 is for dispersing the adsorbent in the processing target liquid S supplied to the processing tank 21, and in this embodiment, the drive attached to the upper part of the tank body 25 by the motor bracket 43a. A motor 43, a rotary shaft 44 that is rotationally driven by the driving force of the drive motor 43, and a rotary blade 45 provided at the tip of the rotary shaft 44 are provided. The rotary blade 45 is disposed so as to be immersed under the liquid surface of the processing target liquid S supplied to the processing tank 21.

  A powder supply device 50 for supplying an adsorbent to be used for the adsorption process to the inside of the processing tank 21 by the supply bracket 50 a is attached to the upper part of the tank body 25.

  Here, the powder supply apparatus 50 of the present embodiment will be described in detail with reference to FIGS.

  The powder supply device 50 according to the present embodiment includes a fixed amount supply device 51, a hopper 52, and a cassette magazine 53.

  The quantitative supply device 51 is for supplying an amount of adsorbent set in advance for each adsorption process, for example, about 60 cc of the adsorbent into the processing tank 21, and inside the sleeve 56 formed in a cylindrical shape, A spool 57 that is movable in the axial direction is arranged. A powder supply port 58 is formed in the upper portion of the sleeve 56, and a lower portion of a guide cylinder 59 that guides the adsorbent to the powder supply port 58 is attached to the powder supply port 58. The guide cylinder 59 is arranged with its axis line oriented in the vertical direction, and two opposing faces of the four faces are parallel, and the remaining two facing faces are spaced downward. The area of the lower opening, which is a tapered surface that becomes narrower, is formed in a rectangular tube shape that is smaller than the area of the upper opening. An attachment flange 60 used for attachment to the hopper 52 is provided on the outer periphery of the upper end portion of the guide cylinder 59. Further, a powder discharge pipe 61 for discharging the adsorbent is provided below the sleeve 56 with its axis line directed in the vertical direction. The powder discharge pipe 61 is shifted from the powder supply port 58 to the left side in FIG.

  Further, the tip (lower end) of the powder discharge pipe 61 is disposed above the inside of the processing tank 21 so that the powder can be supplied to the inside of the processing tank 21. Both ends of the sleeve 56 are closed, and a cylinder 62 for reciprocating the spool 57 along the axial direction is attached to the right end surface shown on the right side of the sleeve 56 in FIG. The tip of the output shaft 62a of the cylinder 62 passes through the right wall of the sleeve 56 and is connected to the right end surface of the spool 57 shown on the right side of FIG. Further, a concave portion 57 a for accommodating a preset amount of adsorbent is provided in the central portion in the axial direction of the spool 57. Further, the cylinder 62 normally has the output shaft 62a retracted, and the recess 57a communicates with the powder supply port 58 of the spool 57 so that a predetermined amount of adsorbent can be accommodated in the recess 57a. When supplying the adsorbent into the processing tank 21, the spool 57 is moved to the left in FIG. 6 by moving the output shaft 62a of the cylinder 62 forward, and the concave portion 57a is located above the powder discharge pipe 61. The adsorbent accommodated in the concave portion 57a can be supplied to the inside of the processing tank 21 by communicating the concave portion 57a with the powder discharge pipe 61.

  The hopper 52 is formed to accommodate, for example, about 10 L of adsorbent. As shown in FIG. 8, the hopper 52 has a vertical (vertical) side wall 65 formed into two adjacent flat plates and an inclined side wall 66 formed into two adjacent flat plates in a diagonal direction. In addition, it has a hopper body 67 formed in a cylindrical shape having a substantially semi-square pyramid inner surface. Further, an upper extension 68 extending upward is provided at the upper end of the two flat inclined side walls 66. The upper ends of the two vertical side walls 65 and the upper ends of the upper extending portions 68 of the two inclined side walls 66 are formed flush with each other. That is, the upper end portion of the hopper main body 67 is formed in a rectangular tube shape, and an upper opening 67a having a substantially square plane is provided at the upper end portion. At the upper opening end, an upper flange portion 69 formed in a square frame shape for use in mounting the cassette magazine 53 is provided. Note that the upper extension 68 may be provided as necessary, and the upper extension 68 may be omitted.

  The lower end portion of the hopper body 67 is provided with a lower opening 67b having a flat rectangular shape that is longer in the left-right direction in FIG. 10 than the upper opening 67a. On the outside of the lower opening end, a lower flange portion 70 formed in a square frame shape for use in attachment to the fixed amount supply device 51 is provided. A fixed amount supply device 51 is attached to the lower part of the hopper body 67. The lower opening 67 b of the hopper main body 67 is communicated with a powder supply port 58 provided in the fixed amount supply device 51. A gasket 74 for preventing the adsorbent from leaking to the outside is disposed between the lower flange portion 70 of the hopper 52 and the mounting flange 60 of the quantitative supply device 51. Further, the lower flange portion 70 of the hopper 52 and the mounting flange 60 of the quantitative supply device 51 are fastened by bolts and nuts not shown.

  A vibration motor 71 for facilitating the flow of the adsorbent is attached to one outer side of the two inclined side walls 66 of the hopper 52, and the other inclined side wall 66 has an inside of the hopper 52. A vibration type level sensor 72 as a powder level sensor for detecting the lower limit position of the adsorbent accommodated in the cartridge, that is, the timing for replacing the cassette magazine 53 is attached.

  The cassette magazine 53 is for supplying a preset amount of adsorbent in a batch to the hopper 52. For example, the cassette magazine 53 has a bottomed cylindrical shape with an open top for accommodating about 14L of adsorbent. The cassette main body 81 is formed, and a detachable upper lid 82 that closes the upper opening of the cassette main body 81 is provided. The cassette body 81 is formed in a bottomed rectangular tube shape having an open top, and the outer peripheral portion of the bottom is placed on the upper surface of the upper flange portion 69 of the hopper 52. The cassette body 81 is detachably attached to the hopper 52 by a plurality of snap catches 83. Furthermore, a shutter 84 that is movable in the horizontal direction for opening and closing a powder discharge hole (not shown) provided at the bottom of the cassette body 81 is provided at the bottom of the cassette body 81 so that the operator can release the shutter. 8 is moved to the right side as indicated by an imaginary line in FIG. 8, the adsorbent accommodated in the cassette body 81 can be supplied collectively into the hopper 52. Note that a gasket 88 for preventing the adsorbent from leaking from between the cassette body 81 and the upper flange portion 69 of the hopper 52 is disposed on the upper surface of the upper flange portion 69. In addition, a plurality of cassette handles 85 are attached to at least two of the four side surfaces of the cassette body 81 that are opposed to each other. Further, a latch lock 86 for preventing the shutter 84 from being inadvertently opened is attached to the side surface of the cassette body 81 where the shutter 84 is disposed.

  As the adsorbent used in the system 1 of the present embodiment, a porous ceramic powder is used in which a natural mineral is a main raw material and a material that is ionized into a cation and an anion is sintered using a glass as a binder. This adsorbent can adsorb and bind foreign substances contained in the liquid S to be treated to rapidly form an agglomerate (floc) into sludge. An example of this adsorbent is CERADECON (registered trademark). The amount of adsorbent input to the processing target liquid S is about 0.05 to 5.0% by volume. In this embodiment, 60 cc of adsorbent is input to 60 L of the processing target liquid S. Has been.

  Next, the filtration device 4 of the present embodiment will be described in detail with reference to FIGS. 9 and 10.

  The filtration device 4 of the present embodiment uses, as a stock solution G as a liquid to be filtered, a treated liquid composed of a mixture of the liquid to be treated S and the adsorbent accommodated in the treatment tank 21 after the adsorption treatment. It is for filtering G, and has a stock solution dividing case 91, a bag-like filter 92, a filtrate tank 93, and a cylindrical net 94.

  The stock solution dividing case 91 is for sending a stock solution G as a liquid to be filtered to a plurality of locations. The case body 101 to which the stock solution G is supplied and a plurality of stock solutions G supplied to the inside of the case body 101 are provided. In this embodiment, six branch pipes 102 for feeding out to six places are provided.

  The case body 101 includes a barrel portion 101a having a hexagonal cylindrical shape, a top wall 101b that closes an upper opening of the barrel portion 101a, and a bottom wall 101c that closes a lower opening of the barrel portion 101a. The case main body 101 is arranged with its axial direction facing the vertical direction. And the lower end part of the inflow tube 103 which connects the inside and outside of the case main body 101 is attached to the center part of the top wall 101b. The inflow pipe 103 is for allowing the stock solution G to flow into the case main body 101, and is arranged with its axis line directed in the vertical direction. Further, the upper end portion of the inflow pipe 103 is connected to the distal end portion of the stock solution supply pipe 41 via a lever lock coupler 105 as a joint that can be easily attached and detached. The lever lock coupler 105 includes a coupler main body 105a and an adapter 105b. For example, the coupler main body 105a is attached to the upper end of the inflow pipe 103, and the adapter 105b is attached to the distal end of the stock solution supply pipe 41. . Further, a base end portion of the branch pipe 102 that communicates the inside and the outside of the case main body 101 is attached to the trunk portion 101a of the case main body 101, more specifically, the central portion of each of the six side walls constituting the trunk portion 101a.

  The branch pipe 102 has a cylindrical horizontal portion 102a disposed along a horizontal direction in which a base end portion is connected to the body portion 101a of the case main body 101, and an upper end connected to a distal end portion of the horizontal portion 102a. And a cylindrical vertical portion 102b arranged along the vertical direction, and has an elbow shape that is long in the horizontal direction as a whole. The opening end of the horizontal portion 102a is attached to the body portion 101a, and the stock solution G that has flowed into the case main body 101 can be sent downward from the lower end portion (tip end portion) of the vertical portion 102b. ing. Further, the six branch pipes 102 are radially arranged so that the angles formed by the two branch pipes 102 adjacent to each other about the axis of the case body 101 are equal, and the center of the lower end of each vertical part 102b. Are arranged so as to be located at the apex of a hexagon centering on the axis of the case body 101. As a result, the six bag-like filters 92 can be arranged parallel to each other along the vertical direction.

  As for the arrangement of the branch pipes 102, when the number of branch pipes 102 is two, the branch pipes 102 may be arranged symmetrically about the axis of the case body 101. When the number of branch pipes 102 is three or more, the distance between the centers of the lower ends of the two vertical portions 102b adjacent to each other at the same distance from the axis of the case body 101 is the center of the lower end of the vertical portion 102b. It is preferable to arrange them at equal angles so that the (intervals) are equal in terms of being able to arrange the plurality of branch pipes 102 in a well-balanced manner without contacting the plurality of bag-like filters 92. When the number of branch pipes 102 is three, the center of the lower end portion of each vertical portion 102b may be disposed at the apex of an equilateral triangle centering on the axis of the case body 101. That is, when the number of branch pipes 102 is three or more, the center of the lower end of each vertical portion 102b is a polygon having the same number of vertices as the number of branch pipes 102 around the axis of the case body 101. It is good to arrange so that it is located at the vertex.

  A filter mounting portion 109 having an annular shape as a whole for mounting the bag-like filter 92 is provided at the lower end of the outer periphery of the vertical portion 102b. The lower end portion of the outer peripheral surface of the filter mounting portion 109 is provided with a convex convex taper surface 109a that gradually decreases in diameter upward. A filter fixing ring 111 is mounted on the outside of the vertical portion 102b above the filter mounting portion 109 so as to be movable up and down. The lower end portion of the inner peripheral surface of the filter fixing ring 111 is a concave tapered surface 111a that gradually decreases in diameter upward, and the concave tapered surface 111a is fitted to the convex tapered surface 109a from above. Functions as a tapered hole.

  The bag-like filter 92 is for separating solid particles of a predetermined size or more contained in the stock solution G, and is formed in a bottomed cylindrical shape. The bag-like filter 92 is formed to be stretchable by stretchable yarn. This stretchable yarn is formed by combining synthetic fibers with elastic fibers (elastomer fibers). The length of the bag-like filter 92 of the present embodiment in the free state is, for example, about 650 mm, and the diameter is, for example, about 5 mm smaller than the maximum diameter of the convex taper surface 109a. The bag-like filter 92 has the opening (bag mouth) of the bag-like filter 92 in the vertical portion 102b, that is, the tip of the branch pipe 102 with the filter fixing ring 111 positioned above the filter mounting portion 109. It can be mounted on the outer periphery. Further, by moving the filter fixing ring 111 downward with the opening of the bag-like filter 92 attached to the outer periphery of the vertical portion 102b, the opening side of the bag-like filter 92 is moved toward the convex tapered surface 109a of the filter mounting portion 109. And the concave taper surface 111 a of the filter fixing ring 111. Thereby, the bag-like filter 92 can be fixed to the tip of the branch pipe 102. That is, the filter attaching portion 109 and the filter fixing ring 111 constitute a means for detachably attaching the bag-like filter 92 of the present embodiment to the branch pipe 102. By fixing the bag-like filter 92 to the branch pipe 102, The stock solution G sent out from the branch pipe 102 flows into the bag-like filter 92.

  In addition, by winding and fixing the opening of the bag-shaped filter 92 around the filter fixing ring 111, the bag-shaped filter 92 sandwiched between the convex taper surface 109a and the concave taper surface 111a is less likely to come off. The bag-like filter 92 can be more reliably fixed to 102. Moreover, when removing the bag-shaped filter 92 from the branch pipe 102, it can carry out easily by moving the filter fixing ring 111 upwards.

  The filtrate tank 93 is for storing the filtrate E after being filtered by the bag-shaped filter 92, that is, the filtrate E that has passed through each of the six bag-shaped filters 92. Is formed in a rectangular tube with a bottom. The filtrate tank 93 is formed with a vertical dimension of 600 mm, a horizontal dimension of 600 mm, and a height dimension of about 200 mm, for example.

  Inside the filtrate tank 93, a splash prevention panel 115 formed in a square tube shape for preventing the filtrate E from splashing is provided. The scattering prevention panel 115 is connected so that the four panel frames 116 arranged at the four corners inside the filtrate tank 93 and the two adjacent panel frames 116 are connected with the length direction thereof set to the vertical direction. It has four vertically long flat panel main bodies 117 arranged in parallel with each of the four inner sides of the filtrate tank 93. The lower ends of the panel frame 116 and the panel main body 117 are in contact with the bottom surface of the filtrate tank 93, and the upper ends protrude above the upper end of the filtrate tank 93, and the outside of the six bag-shaped filters 92 is outside. It arrange | positions so that it may surround in a square cylinder shape. The panel body 117 is formed of a transparent resin such as polyethylene terephthalate (PET), polycarbonate, acrylic resin, and the bag-like filter 92 passes through a portion of the splash prevention panel 115 that protrudes above the filtrate tank 93. The majority of can be seen. The side end portion of the panel main body 117 is fitted to a side surface orthogonal to the longitudinal direction of the panel frame 116. A panel handle 118 is attached to the outer surface of each panel body 117.

  On the bottom surface of the filtrate tank 93, a guide ring 121 formed in a cylindrical shape by a punching metal having a plurality of holes penetrating in the thickness direction is provided. The lower end of the guide ring 121 is fixed to the bottom surface of the filtrate tank 93. The guide ring 121 is arranged with its axis line oriented in the vertical direction, and the axis line of the guide ring 121 is coaxial with the axis line of the case body 101. Furthermore, the axis of the guide ring 121 is coaxial with the axis of the filtrate tank 93.

  A turntable 123 is provided inside the guide ring 121. The turntable 123 is formed in a bottomed cylindrical shape whose bottom is opened by a punching metal having a plurality of holes penetrating in the thickness direction, and its outer dimension is slightly smaller than the inner diameter of the guide ring 121. The height dimension of the guide ring 121 is larger than that of the guide ring 121. Further, the turntable 123 is rotatably and detachably mounted on the bottom surface of the filtrate tank 93 inside the guide ring 121. Furthermore, a plurality of, in the present embodiment, six net support cylinders 124 are attached to the turntable 123. These net support cylinders 124 are for supporting the cylindrical net 94 from below. The net support cylinder 124 is formed in a cylindrical shape by punching metal or the like having a plurality of holes penetrating in the thickness direction, and the axial direction thereof is arranged in the vertical direction. Further, the lower end portion of the net support tube 124 is disposed at an intermediate position between the bottom surface of the filtrate tank 93 and the upper surface of the turntable 123, and the upper end portion of the mesh support tube 124 is within the filtrate tank 93. It protrudes above the upper surface and above the maximum liquid surface of the filtrate E. The six net support cylinders 124 are arranged at an equal angle so that the distance between the centers of the two net support cylinders 124 adjacent to each other at the equidistant position from the axis of the turntable 123 and the case main body 101 is equal. And the lower part of the cylindrical net body 94 is detachably fitted to each of the net support cylinders 124 from above.

  The cylindrical mesh body 94 is for preventing the stitches from expanding when the bag-like filter 92 is inflated so that solid particles to be separated pass through. The cylindrical net 94 is formed in a cylindrical shape as a whole, its lower end is in contact with the bottom surface of the filtrate tank 93, and its upper end is disposed about 60 mm below the lower end of the vertical portion 102b. Has been. The cylindrical mesh 94 is formed in a cylindrical shape having a wire diameter of about 1.0 mm, a mesh pitch of about 10 mm, an outer diameter of about 90 mm, and a thickness dimension at the upper end. An annular guide flange 94a having a diameter of about 1.0 mm is provided. Further, the cylindrical mesh body 94 is supported so that the lower end portion thereof is fitted inside the cylindrical mesh body 94 and is substantially upright. The upper opening of the cylindrical net 94 is always arranged so as to face the tip of the branch pipe 102. That is, the axis of the cylindrical net 94 and the axis of the vertical portion 102b are substantially coaxial. The length of the cylindrical net 94 is such that it surrounds the outer periphery of about 90% of the length located below the vertical portion 102b of the bag-like filter 92 from the outside. The cylindrical net 94 may be anything that surrounds at least the lower half of the bag-like filter 92.

  A filtrate outflow pipe 126 that communicates the inside and outside of the filtrate tank 93 is provided at the lower portion of the side wall shown on the right side of the filtrate tank 93 in FIG. 2 so that the filtrate E accommodated in the filtrate tank 93 flows out to the outside. Can be done. Further, a liquid level gauge 128 for detecting an upper limit abnormality of the liquid level of the filtrate E accommodated in the filtrate tank 93 is disposed in the vicinity of the lower portion of the side wall shown in the left of FIG. The liquid level gauge 128 is attached to the bottom surface of the filtrate tank 93 by a bracket (not shown). Further, two tank attachment plates 129 for attaching the filtrate tank 93 to the upper surface of the base plate 11 are spaced apart from each other at the lower part of the outer peripheral surface of the two opposite side walls shown in the upper and lower sides of the filtrate tank 93 in FIG. Attached.

  Returning to the system 1, as shown in FIG. 1, one end of a filtrate drain pipe 131 is detachably connected to the tip of a filtrate outflow pipe 126 provided in the filtrate tank 93 of the filtration device 4. The other end of the filtrate drain pipe 131 is detachably connected to the suction port of the discharge pump 6. One end of the filtrate return hose 133 is detachably connected to the discharge port of the suction pump, and the other end of the filtrate return hose 133 is a storage for storing the processing target liquid S when the system 1 is in operation. Arranged in the tank 35. As the discharge pump 6 of the present embodiment, a self-feeding diaphragm pump that is pneumatically driven is used.

  The supply of compressed air to the supply pump 5, the discharge pump 6, the first stop valve 31, the first switching valve 33, and the second switching valve 38 is branched from the manifold 135. Is done. Further, the compressed air is supplied to the cylinder 62 from the outlet of the manifold 135 by an air hose 136a indicated by a solid line in FIG. Further, the residual pressure discharge valve 143, the air pressure adjustment unit 145, and the manifold 135 are connected in this order by a main air pipe 137. Furthermore, the inlet of the residual pressure discharge valve 143 is connected to the outlet of the second stop valve 141 which is normally manually operated via the supply air hose 139 and whose flow path is closed. The inlet of the second stop valve 141 is connected to an air pressure source 138 such as factory air. The second stop valve 141 is provided in a factory air pipe (not shown). Therefore, during operation of the system, the residual pressure discharge valve 143 and the second stop valve 141 are connected by the supply air hose 139.

  A pressure switch 147 for detecting that compressed air is supplied to the compressed air flow path is disposed between the air pressure adjusting unit 145 and the manifold 135. Further, by operating the first switching valve 33 and the second switching valve 38, the flow path for guiding the processing target liquid S to the processing tank 21 and the stock solution G in the processing tank 21 during the operation of the system 1 are filtered. 4 can be obtained. Further, in FIG. 1, reference numeral 148 is a silencer, reference numeral 149 is a solenoid valve for switching a compressed air supply path for operating the cylinder 62, and reference numeral 150 is a speed controller (speed controller).

  Further, as shown in FIG. 2, the processing platform 15 of the carriage 2 is provided with a hook support frame 15a indicated by an imaginary line in FIG. 2, and the system 1 is attached to the tip of the hook support frame 15a. In a stand-by state in which the apparatus does not operate, a binding member 19 made of a string bundled in a state in which the treatment liquid suction hose 34 and the filtrate return hose 133 that are not connected are wound is detachably hung.

  The operation panel 7 is used for the operation of each drive unit, and has a box body 160 attached to the upper portion of the right end surface of the processing base 15 shown on the right side of FIG. On the upper surface of the box main body 160, as shown in FIG. 3, operation switches used for various operations, switches 161 such as a power switch and an emergency stop switch, and a display device 162 such as an indicator lamp used for displaying various information are arranged. Has been. The switches 161 and the display device 162 are electrically connected to a control unit (not shown) disposed inside the box body 160. This control unit mainly includes a CPU (may be an MPU) that functions as a calculation unit that performs various types of calculation processing, and a memory that functions as a storage unit that stores programs and data. The memory stores a program and data necessary for executing the processing operation of the processing target liquid S by the system 1. Further, the above-described float type liquid level switch 27, lead type level sensor 28, drive motor 43, vibration motor 71, vibration type level sensor 72, liquid level gauge 128, pressure switch 147, etc. are electrically connected to the control unit. Has been.

  In FIG. 1, the flow direction of the liquid S to be treated is indicated by an arrow S, the flow direction of the stock solution G is indicated by an arrow G, the flow direction of the filtrate E is indicated by an arrow E, and the flow direction of compressed air is indicated by an arrow A. Further, in FIGS. 2 to 5, reference numerals are given only to main parts. Furthermore, in FIG. 1 to FIG. 10, when there are a plurality of the same ones, only a part is given a reference numeral.

  Next, the operation of the present embodiment having the above-described configuration will be described.

  In the processing operation of the processing target liquid S by the waste liquid processing system 1 of the present embodiment, the operator moves the carriage 2 to the vicinity of the processing liquid storage tank 35 and performs a preparatory work. In this preparatory work, the treatment liquid suction hose 34 and the filtrate return hose 133 that are disconnected are connected to predetermined positions, and the tip of the treatment liquid suction hose 34 is disposed below the liquid surface of the treatment liquid storage tank 35. Then, the tip of the filtrate E discharge hose is disposed on the liquid surface of the treatment liquid storage tank 35. Further, the residual pressure discharge valve 143 and the second stop valve 141 are connected by a supply air hose 139. In addition, the 1st stop valve and the 2nd stop valve 141 hold | maintain the closed state which interrupted | blocked the flow path, respectively.

  When the preparatory work is completed, the system 1 is operated by operating the operation switch (not shown) with the second stop valve 141 in an open state in which the flow path is opened. The operation of the system 1 is automatically performed by the control unit.

  When the system 1 is operated, it is determined from the detection signal from the pressure switch 147 that compressed air is supplied to the pneumatic flow path. When compressed air is supplied to the air flow path, the supply pump 5 is operated after operating the first switching valve 33 and the second switching valve 38 so as to guide the processing target liquid S to the processing tank 21. Driven to supply the processing target liquid S to the processing tank 21. Thereafter, when the float-type liquid level switch 27 detects that about 60 L of the processing target liquid S has been supplied to the processing tank 21, the driving of the supply pump 5 is stopped. When compressed air is not supplied to the air flow path, an error is displayed and the system 1 is held in a non-operating state.

  Next, the cylinder 62 of the quantitative supply device 51 is driven to move the concave portion 57 a of the spool 57 to the upper portion of the powder discharge pipe 61. As a result, a predetermined amount, for example, about 60 cc of adsorbent accommodated in the recess 57a is discharged downward through the powder discharge pipe 61, so that the adsorbent is supplied to the inside of the processing tank 21 and processed by the adsorbent. The liquid S adsorption process is started. At this time, by driving the drive motor 43, the rotary blade 45 is rotated and the processing target liquid S is agitated, and the adsorbent is dispersed in the stock solution G. As a result, foreign matter in the stock solution G is adsorbed to the adsorbent in a preset time, for example, several minutes. Thereafter, a treated liquid is formed in the treatment tank 21 as a stock solution G in which the treatment target liquid S and the adsorbent that has adsorbed foreign substances are mixed, and the adsorption process ends.

  Note that when the supply of the adsorbent accommodated in the recess 57a to the processing tank is completed, the spool 57 returns to the original position. Then, the adsorbent used for the next adsorption process is supplied from the inside of the hopper body 67 to the recess 57a. At this time, the shape of the hopper body 67 can prevent the bridging phenomenon of the adsorbent that is likely to occur in the vicinity of the lower opening 67b, and the adsorbent can be driven by driving the vibration motor 71 attached to the hopper body 67. The bridging phenomenon can be prevented more reliably. Here, when the shape of the hopper main body 67 is a conical shape or a quadrangular pyramid shape that protrudes downward in the conventional case, the bridge phenomenon of the adsorbent may not be prevented by the vibration motor 71 alone.

  Next, when the adsorption process is completed, the first switching valve 33 and the second switching valve 38 are operated so as to guide the stock solution G to the filtration device 4. Thereafter, the first stop valve 31 is opened, and the supply pump 5 is driven to supply the stock solution to the filtration device 4. The stock solution G supplied to the filtration device 4 has solid particles having a predetermined size or more mainly composed of an adsorbent that has adsorbed foreign substances while passing through the bag-like filter 92 of the filtration device 4 from the inside to the outside. The filtrate E that has been captured and separated by the bag-like filter 92 and filtered and passed through the bag-like filter 92 is stored in the filtrate tank 93. And the filtrate E accommodated in the filtrate tank 93 drives the discharge pump 6 to return most of it to the treatment liquid storage tank 35, whereby the filtration process of the stock solution is completed. The upper limit of the liquid level of the filtrate E collected in the filtrate tank 93 is detected by the liquid level gauge 128.

  Next, replacement of the cassette magazine 53 will be described.

  The cassette magazine 53 is replaced by an operator. The cassette magazine 53 is replaced by detecting the lower limit of the amount of adsorbent stored in the hopper 52 by a powder level sensor provided in the hopper 52. When the vibration type level sensor 72 detects the lower limit of the amount of adsorbent, all of the adsorbent accommodated in the cassette magazine 53 is supplied to the hopper 52 and is in an empty state. The cassette magazine 53 is replaced by closing the open shutter 84 and then operating the latch lock 86 to hold the shutter 84 closed, and then removing the snap catch 83. Then, the cassette magazine 53 is removed from the upper part of the hopper 52 while holding the handle of the cassette magazine 53. Next, a new cassette magazine 53 in which the adsorbent is accommodated is placed on the hopper 52. Then, the cassette magazine 53 is exchanged by attaching the cassette magazine 53 to the upper portion of the hopper 52 by the snap catch 83. When the replacement of the cassette magazine 53 is completed, the shutter 84 can be moved by operating the latch lock 86, and then the shutter 84 is moved to the right as shown by the imaginary line in FIG. The adsorbent accommodated in the new cassette magazine 53 is supplied to the hopper 52.

  Next, replacement of the bag-like filter 92 will be described.

  The replacement of the bag-shaped filter 92 is performed by the operator visually recognizing the bag-shaped filter 92 through the anti-scattering panel 115 and judging that the replacement time has been reached from the shape of the bag-shaped filter 92 and the like. That is, when solid particles accumulate in the bag-shaped filter 92, the bag-shaped filter 92 expands outward from the bottom side and comes into contact with the cylindrical net 94. Therefore, by visually recognizing the height position above the expansion range of the bag-like filter 92, the replacement time can be determined. The bag-like filter 92 is replaced by moving the filter fixing ring 111 upward to release the holding state of the bag-like filter 92 between the convex taper surface 109a and the concave taper surface 111a. Next, the opening of the bag-like filter 92 is removed from the tip of the branch pipe 102. Next, the turntable 123 is rotated to move the position of the bag-like filter 92 from the lower side of the branch pipe 102 to a position where the branch pipe 102 is not disposed, and then the bag-like filter 92 is moved above the cylindrical net 94. Pull it out. Next, after the bottom of the new bag-like filter 92 is inserted into the cylindrical mesh body 94, the rotating base 123 is rotated or reversely rotated so that the upper opening of the cylindrical mesh body 94 is connected to the tip of the branch pipe 102. Move to the opposite position. Next, after attaching the opening of the new bag-like filter 92 to the tip of the branch pipe 102, the filter fixing ring 111 is moved downward, so that the bag-like filter is formed by the convex taper surface 109a and the concave taper surface 111a. The replacement of the bag-like filter 92 is completed by setting the 92 to the clamping state.

  The rotation of the turntable 123 may be performed with the opening of the bag-like filter 92 or with the upper part of the cylindrical net 94. Further, since the bag-like filter 92 extends downward as the solid particles accumulated in the bag 92 progress, the bag-like filter 92 is moved upward by moving the height position of the stock solution supply pipe 41 that can move up and down. The replacement time of 92 can be delayed.

  Thus, according to the adsorption processing apparatus 3 of the present embodiment, the treatment tank 21 can accommodate the treatment target liquid S and the adsorbent and perform the adsorption treatment, and the stirring means 23 can handle the treatment target liquid. Since the adsorbent can be uniformly dispersed in S, the efficiency of adsorbing foreign matters by the adsorbent can be increased.

  Further, according to the filtration device 4 of the present embodiment, since the stock solution G can be filtered by the six bag-shaped filters 92, the processing amount of the stock solution G can be increased, so that the filtration capacity can be increased.

  Furthermore, according to the filtration device 4 of the present embodiment, the bag-like filter 92 can be easily attached to and detached from the branch pipe 102 by a simple operation of moving the filter fixing ring 111 up and down, compared to the conventional case. The bag-like filter 92 can be easily replaced.

  Furthermore, according to the filtration device 4 of the present embodiment, when replacing the bag-shaped filter 92, the opening of the bag-shaped filter 92 can be opened by a simple operation of moving the filter fixing ring 111 upward. 102, and after removing the opening of the bag-like filter 92 from the branch pipe 102, the position of the bag-like filter 92 can be moved below the branch pipe 102 by a simple operation of rotating the turntable 123. Therefore, the bag-like filter 92 can be easily pulled out upward, so that the bag-like filter 92 can be replaced more easily than in the prior art.

  Therefore, according to the filtration device 4 of the present embodiment, it is possible to easily improve the usability for the operator.

  Further, according to the filtration device 4 of the present embodiment, the base end portions of the six branch pipes 102 are connected to the case main body 101, and the upper end is connected to the tip end portion of the horizontal portion 102a. The vertical portion 102b is provided and the two branch pipes 102 adjacent to each other about the axis of the case main body 101 are arranged radially so that the angles are equal to each other. The six bag-like filters 92 can be smoothly guided to the six bag-like filters 92, the six bag-like filters 92 can be arranged in a well-balanced manner, and the bag-like filters 92 can be easily and reliably prevented from contacting each other.

  Furthermore, according to the filtration device 4 of the present embodiment, since the cylindrical mesh body 94 is formed so as to surround at least the lower half of the bag-like filter 92, the expansion of the stitches due to the expansion of the bag-like filter 92 is reduced to solid particles. Can be reliably and easily prevented from passing. The expansion of the bag-like filter 92 occurs during the filtration process and after the filtration process is completed. The expansion of the bag-like filter 92 during one filtration process is caused by the inflow of the stock solution G and the flow of the filtrate E passing from the inside to the outside, and returns when the supply of the stock solution G is stopped. The expansion of the bag-like filter 92 after the other filtration process is completed occurs from the bottom side due to the accumulation of solid particles remaining in the bag-like filter 92 after the filtration process is completed, and the bag-like filter 92 is cylindrical. The contact with the mesh body 94 is prevented.

  Furthermore, according to the filtration device 4 of the present embodiment, most of the bag-shaped filter 92, at least the portion above the cylindrical mesh body 94, can be visually recognized through the anti-scattering panel 115. Thus, the operator can easily determine the replacement time of the bag-like filter 92.

  Moreover, according to the powder supply apparatus 50 of this embodiment, the vertical side wall 65 formed in two adjacent flat plates and the inclined side wall 66 formed in two adjacent flat plates are oriented diagonally. In addition, since it has a hopper 52 having a hopper body 67 formed in a cylindrical shape having a substantially semi-square pyramid inner surface, the adsorption that is likely to occur near the lower opening 57 b due to the shape effect of the hopper body 67. The bridging phenomenon of the agent can be reliably prevented.

  Furthermore, according to the powder supply apparatus 50 of the present embodiment, since the vibration motor 71 is attached to the inclined side wall 66, the adsorbent bridging phenomenon that is likely to occur near the lower opening 67b of the hopper body 67 is more reliably achieved. Can be prevented.

  Furthermore, according to the powder supply device 50 of the present embodiment, a fixed amount supply device 51 that discharges a predetermined amount of adsorbent is attached to the lower portion of the hopper body 67, and is provided in the hopper body 67. Since the lower opening 67b communicates with the powder supply port 58 provided in the quantitative supply device 51, the adsorbent accommodated in the hopper body 67 can be reliably and easily supplied to the quantitative supply device 51. In addition, the quantitative supply device 51 can easily and reliably discharge a predetermined amount of adsorbent necessary for the adsorption process.

  Further, according to the powder supply device 50 of the present embodiment, the cassette magazine 53 formed in a bottomed cylindrical shape for supplying a predetermined amount of adsorbent to the hopper main body 67 at the upper part of the hopper main body 67. Is attached to the hopper main body 67 in a preset amount. Thereby, compared with the case where the adsorbent is supplied to the hopper 52 by the conventional measuring cup, the adsorbent can be supplied to the hopper 52 efficiently and easily.

  Furthermore, according to the fixed amount supply device 51 of the present embodiment, a predetermined amount of adsorbent is accommodated and discharged by the concave portion 57a of the spool 57 that can be reciprocated, and thus is unnecessary for the adsorbent. The load can be prevented.

  Furthermore, according to the system 1 of the present embodiment, each of the supply of the processing target liquid S to the processing tank 21 and the supply of the stock solution G to the filtration device 4 can be performed by one supply pump 5. Therefore, it is possible to easily simplify the configuration, reduce the size, and reduce the weight.

  Further, according to the system 1 of the present embodiment, each of the adsorption processing device 3, the filtering device 4, the one supply pump 5, the one discharge pump 6, and the operation panel 7 provided with the powder supply device 50 is a cart. The system 1 can be easily moved because it is installed at 2.

  Therefore, according to the system 1 of the present embodiment, the adsorption process of the processing target liquid S can be easily performed, the adsorbent subjected to the adsorption process can be easily separated, and the convenience for the operator is improved. The improvement can be achieved, and the processing target liquid S can be processed by moving the system 1 to a desired location.

  Furthermore, according to the system 1 of the present embodiment, the bridging phenomenon of the adsorbent can be reliably prevented.

  Therefore, according to the system 1 of the present embodiment, high performance can be easily achieved.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed. For example, the filtration target liquid can be directly supplied to the filtration device without performing the adsorption treatment, and only the filtration treatment can be performed. Moreover, it can be set as the structure which performs only manual operation about the processing operation by a system, and can also be set as the structure which selects one from automatic operation and manual operation.

DESCRIPTION OF SYMBOLS 1 System 2 Carriage 3 Adsorption processing apparatus 4 Filtration apparatus 5 Supply pump 6 Discharge pump 7 Operation panel 21 Processing tank 23 Stirring means 25 Tank main body 50 Powder supply apparatus 51 Metering supply apparatus 52 Hopper 53 Cassette magazine 58 Powder supply port 65 Vertical Side wall 66 Inclined side wall 67 Hopper body 67a Upper opening 67b Lower opening 84 Shutter 91 Stock solution dividing case 92 Bag-shaped filter 93 Filtrate tank 94 Cylindrical net 101 Case body 102 Branch pipe 102a Horizontal portion 102b Vertical portion 121 Guide ring 123 Turntable 124 Net support cylinder A Compressed air E Filtrate G Stock solution (liquid to be filtered)
S target liquid

Claims (5)

A powder supply apparatus having a hopper for storing an adsorbent,
The hopper has a hopper body formed in a semi-quadrangular pyramid shape with two adjacent vertical side walls and two adjacent inclined side walls facing each other diagonally. apparatus.   A quantitative supply device is attached to a lower portion of the hopper body, and a lower opening provided in the hopper main body communicates with a powder supply port provided in the quantitative supply device. The powder supply apparatus according to claim 1.   The cassette magazine formed in the shape of a bottomed cylinder for supplying a preset amount of adsorbent to the hopper body is attached to the upper part of the hopper body. 2. The powder supply apparatus according to 2.   The powder supply apparatus according to claim 3, wherein a shutter that is movable in a horizontal direction is provided at a bottom portion of the cassette magazine. An adsorption treatment apparatus comprising a treatment tank to which a treatment target liquid to be subjected to waste liquid treatment and an adsorbent for adsorbing foreign matter contained in the treatment target liquid are individually supplied;
A waste liquid treatment system having a powder supply device for supplying an adsorbent to the treatment tank,
A waste liquid treatment system, wherein the powder supply device is the powder supply device according to any one of claims 1 to 4.