CN203816313U - Bag filtering device easy to assemble and disassemble - Google Patents

Abstract

The easy-to-disassemble bag-type filter device includes a bracket. The upper cylinder and the lower cylinder are connected by flanges on the bracket. The top of the upper cylinder is provided with a top cover. Each hole is connected with a bag filter located in the upper cylinder, the bottom of the lower cylinder is provided with a filter residue outlet, the side of the lower cylinder is provided with a liquid inlet, and the top cover is provided with a liquid outlet. The utility model has the advantages of novel design, simple structure, easy operation, high degree of automation, easy disassembly, good sealing performance, strong reliability, reduced labor intensity, strong practicability, and easy popularization and application.

Description

Detachable bag filter device

technical field

The utility model relates to an environmental protection, chemical and oil machinery equipment, in particular to an easy-to-detach bag filter device.

Background technique

Bag filter is a multi-purpose filter equipment with novel structure, small size, simple and flexible operation, energy saving, high efficiency, airtight work and strong applicability. Bag filter is a new type of filtration system. Inside the bag filter, the filter bag is supported by a metal mesh basket. The liquid flows in from the inlet, and flows out from the outlet after being filtered by the filter bag.

The bag filter is a pressure filter device, mainly composed of filter cylinder, filter cylinder cover, quick opening mechanism, stainless steel filter bag reinforcement net and other main components. The filtrate flows into the filter bag from the side inlet pipe of the filter shell. The filter bag itself is installed in the reinforced mesh basket, and the liquid penetrates through the filter bag of the required fineness level to obtain qualified filtrate, and the impurity particles are intercepted by the filter bag. The machine is very convenient to replace the filter bag, and there is basically no material consumption for filtering.

The bag filter has many advantages such as reasonable structure, good sealing, strong flow ability, and easy operation. In particular, the side leakage probability of the filter bag is small, the filtration accuracy can be accurately guaranteed, and the filter bag can be replaced quickly, so that the operating cost is reduced. The inner and outer surfaces of the filter are treated by mechanical sandblasting and polishing, which is uniform and easy to clean. We know that the filtering method adopted by the bag filter is the side-in and side-out method, and the side-in and bottom-out method can also be adopted, and the filtered liquid medium is pressed or drawn into the bag filter barrel through the pressure in the pipeline. , the liquid medium to be filtered is filtered through the filter bag supported by the filter blue through electropolishing punching holes, and the changed solid and liquid respectively reach the liquid medium and are filtered.

Bag filters have the following advantages:

⑴Bag filter with compact structure and reasonable size. The installation and operation are simple and convenient, and the floor space is small. ⑵ The bag filter has high filtration precision and is suitable for any fine particles or suspended solids. The filtration range can be from 0.5 to 200 microns. (3) The treatment flow rate per unit filtration area is large, the filtration resistance is small, and the filtration efficiency is high. The filtration function of a liquid filter bag is 5 to 10 times that of the filter element, which can greatly reduce the cost; the design flow can meet the requirements of 1 to 500m3/h, and the cost is low. ⑷ The bag filter is widely used and can be used for coarse filtration, medium filtration or fine filtration; in the case of achieving the same filtering effect, compared with plate and frame fine filter, filter element filter and other equipment, it has lower investment cost and longer service life. Advantages such as long length and low filtration cost. ⑸ High filtration precision, large filtration capacity, low cost and high efficiency. ⑹ The liquid bag filter is free of cleaning, and the replacement of the liquid filter bag can be completed within 30 seconds, which is convenient and quick, saving labor and time. ⑺ The liquid bag filter has complete specifications, including low-pressure type, side-entry type, top-entry type, multi-bag type, and horizontal type.

The filter bags in the existing bag filters generally have complicated filter bag fixing and installation structures, inconvenient disassembly and assembly, poor reliability, poor sealing, and it is quite inconvenient to disassemble the top cover when replacing the filter bag. And it takes a lot of time, and requires many workers to operate, and the labor intensity is high.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides an easily disassembled and assembled bag filter device with easy disassembly and assembly, good sealing performance and high disassembly and assembly efficiency.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: an easy-to-disassemble bag filter device, including a bracket, an upper cylinder and a lower cylinder connected by flanges are arranged on the bracket, and a top cover is provided on the top of the upper cylinder , the lower part of the inner wall of the upper cylinder is horizontally equipped with a porous plate, each hole of the porous plate is connected with a bag filter located in the upper cylinder, the bottom of the lower cylinder is equipped with a filter residue outlet, and the side of the lower cylinder is equipped with an inlet Liquid port, the top cover is provided with a liquid outlet, the bag filter includes an inner sleeve, a locking column, a sealing gasket, a compression sleeve, a locking seat, a filter bag and a cage frame, and the cage frame as a whole is the bottom Open cylindrical structure, the filter bag is set outside the cage frame, the lower end of the cage frame is fixedly connected to the inner sleeve, the locking seat is a circular structure, and the outer wall of the locking seat is fixedly connected with the hole wall of the perforated plate. The inner wall of the locking seat is provided with three sections of curved bosses at intervals, and the side of the inner sleeve is equipped with three locking columns protruding from the inner sleeve along the same circular surface. The lower end of the filter bag is provided with a steel ring, and the bottom of the inner sleeve is provided with The outer diameter of the positioning ring is larger than that of the inner sleeve, the positioning ring is provided with an operation hole, the upper end of the compression sleeve is provided with a compression ring with an outer diameter smaller than the compression sleeve, and the lower end of the compression sleeve is provided with a fixed ring with an outer diameter larger than the compression sleeve. The compression sleeve and the fixing ring are provided with three notches respectively matched with a locking column, the steel ring is arranged between the compression ring and the upper end of the inner sleeve, a sealing gasket is provided between the positioning ring and the fixing ring, filter bags and cages The molded frame passes through the locking seat upwards and the inner sleeve is rotated so that the three locking posts on the side of the inner sleeve respectively press fit with the upper edge of a section of the curved boss.

Adopting the above-mentioned technical scheme, the easy-to-disassemble bag-type filter device also includes a hoisting mechanism for hoisting the roof on the side of the bracket. The casing is vertically arranged and fixedly connected to the bracket through the connecting plate. There is a blocking plate inside the fixed casing, and a rotating shaft located on the top of the blocking plate is arranged inside the fixed casing. The upper end of the rotating shaft is higher than the upper end of the fixed casing, and the lower end of the movable casing is inserted. On the rotating shaft and in pressure contact with the upper end of the fixed sleeve, one end of the beam is vertically connected to the upper end of the movable sleeve, and the other end of the beam is fixedly connected with two oblique support rods. The lower ends of the two oblique support rods are equipped with universal wheels. Above the cover, a connecting seat is provided on the top cover, a screw rod is vertically and threadedly connected to the beam, the lower end of the screw rod is rotatably connected with the connecting seat, and a hand wheel is provided at the upper end of the screw rod.

When the utility model is used in work, the material enters the lower cylinder body from the liquid inlet, and when the filtrate enters the filter bag from the lower mouth of the filter bag, under the pressure of the liquid, the clean liquid enters the upper cylinder body, and It flows out from the liquid outlet on the top cover, and the filter residue produced by filtration falls to the filter residue outlet at the lower end under the action of gravity to be discharged. In the working state, the liquid outlet is closed. When the filter residue accumulates to a certain extent, close the liquid inlet valve and open the oil residue discharge valve at the lower end to discharge the filter residue. At the same time, a booster pump is used to spray the filter residue Part of the clean filtrate recoils the oil residue on the filter bag to clean the filter bag. The upside-down of the filter bag is more convenient for cleaning the filter residue.

In order to fix the filter bag and facilitate disassembly, a locking structure is provided at each hole of the perforated plate. After the locking structure is made separately, the locking seat and the perforated plate are assembled and then welded. The installation process is as follows: the cage frame is welded to the inner sleeve, the locking column is installed in the hole of the perforated plate and fixed by welding, the sealing gasket is installed, the filter bag is placed on the cage frame, and there is a filter bag in the lower end of the filter bag. Supported by the steel ring, use the compression ring of the compression sleeve to compress the steel ring, and install the gap between the three curved bosses on the locking seat against the locking column, so that the locking column passes through the locking column on the locking seat. , Use a wrench to clamp the operation hole to rotate the locking seat, so that the curved boss on the locking seat is pressed against the locking column on the inner sleeve to achieve a secure connection.

The compression sleeve and the fixing ring are provided with three notches respectively matched with a locking column, so that when the locking seat is rotated, the compression sleeve, the compression ring and the fixing ring can also be rotated accordingly. The compression sleeve, the compression ring and the fixing ring are manufactured in one piece. The locking seat and the curved boss are integrally manufactured. The inner sleeve and the positioning ring are manufactured in one piece, three holes are drilled on the inner sleeve, and the three locking columns are respectively passed through the three holes and welded with the inner sleeve as a whole.

When it is necessary to open the upper cylinder, first remove the bolts connected by the flange between the upper cylinder and the lower cylinder, then operate the hand wheel, lift the top cover and the upper cylinder through the screw, and then turn the two An oblique support rod, universal wheels roll on the ground, and the movable sleeve rotates along the fixed sleeve. Turn the top cover and the upper cylinder to the top of the lower cylinder to replace the filter bag or maintain the components in the upper cylinder.

To sum up, the utility model has the advantages of novel design, simple structure, easy operation, high degree of automation, easy disassembly, good sealing performance, strong reliability, reduced manual labor intensity, strong practicability, and easy popularization and application.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left side view of hoisting mechanism in Fig. 1;

Fig. 3 is an enlarged view of place A in Fig. 1;

Fig. 4 is an exploded schematic view of the bag filter in the present invention.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the detachable bag filter device of the present invention includes a bracket 1, and the bracket 1 is provided with an upper cylinder 2 and a lower cylinder 3 connected by flanges , the top of the upper cylinder 2 is provided with a top cover 4, the lower part of the inner wall of the upper cylinder 2 is horizontally provided with a perforated plate 5, each hole of the perforated plate 5 is connected with a bag filter located in the upper cylinder 2, and the lower cylinder The bottom of the body 3 is provided with a filter residue outlet 6, the side of the lower cylinder 3 is provided with a liquid inlet 7, the top cover 4 is provided with a liquid outlet 8, and the side of the bracket 1 is provided with a lifting mechanism for lifting the top cover 4, bag type The filter includes an inner sleeve 9, a locking column 10, a sealing gasket 11, a compression sleeve 12, a locking seat 13, a filter bag 14 and a cage frame 15. The cage frame 15 is a cylindrical structure with an open bottom as a whole. The filter bag 14 is set on the outside of the cage frame 15, the lower end of the cage frame 15 is fixedly connected to the inner sleeve 9, the locking seat 13 is a ring structure, the outer wall of the locking seat 13 is fixedly connected with the hole wall of the porous plate 5, and the locking The inner wall of the tight seat 13 is provided with three sections of curved bosses 16 at intervals, and the side of the inner sleeve 9 is evenly distributed along the same circular surface with three locking columns 10 protruding from the inner sleeve 9, and the lower end of the filter bag 14 is provided with a steel ring 17 , the bottom of the inner sleeve 9 is provided with a locating ring 18 with an outer diameter greater than the inner sleeve 9, the locating ring 18 is provided with an operating hole 19, and the upper end of the compression sleeve 12 is provided with a compression ring 20 with an outer diameter smaller than the compression sleeve 12. The lower end of the sleeve 12 is provided with a fixing ring 21 whose outer diameter is larger than the compression sleeve 12, and the compression sleeve 12 and the fixing ring 21 are provided with three gaps 22 respectively matched with a locking column 10, and the steel ring 17 is located on the compression ring 20 and the upper end of the inner sleeve 9, between the positioning ring 18 and the fixed ring 21, there is a sealing gasket 11, the filter bag 14 and the cage frame 15 pass through the locking seat 13 upwards and rotate the inner sleeve 9 to make the side of the inner sleeve 9 The three locking columns 10 are respectively press-fitted with the upper edge of a segment of the curved boss 16 .

The hoisting mechanism includes a fixed sleeve 23, a movable sleeve 24, a crossbeam 25 and two inclined support rods 26. The fixed sleeve 23 is vertically arranged and fixedly connected to the support 1 through a connecting plate 27. The fixed sleeve 23 is provided with a plug plate 28, the fixed sleeve 23 is provided with a rotating shaft 29 located at the top of the blocking plate 28, the upper end of the rotating shaft 29 is higher than the upper end of the fixed sleeve 23, and the lower end of the movable sleeve 24 is inserted on the rotating shaft 29 and pressed against the upper end of the fixed sleeve 23 Contact, one end of the crossbeam 25 is vertically connected to the upper end of the movable sleeve 24, the other end of the crossbeam 25 is fixedly connected to two oblique support rods 26, the lower ends of the two oblique support rods 26 are provided with universal wheels 30, and the crossbeam 25 is located above the top cover 4, The top cover 4 is provided with a connecting seat 31 , and the crossbeam 25 is vertically connected with a screw mandrel 32 threadedly. The lower end of the screw mandrel 32 is rotationally connected with the connecting seat 31 .

When the utility model is used in work, the material enters the lower cylinder body 3 from the liquid inlet 7, and when the filtrate enters the filter bag 14 from the lower opening of the filter bag 14, under the pressure of the liquid, the clean liquid flows from the inlet to the filter bag 14. Inside the upper cylinder 2, and flow out from the liquid outlet 8 on the top cover 4, the filter residue produced by filtration falls to the filter residue outlet 6 at the lower end under the action of gravity to be discharged. In the working state, the liquid outlet 8 is closed. When the filter residue accumulates to a certain extent, close the liquid inlet valve and open the oil residue discharge valve at the lower end to discharge the filter residue. At the same time, a booster pump is used at the liquid outlet 8 Part of the clean filtrate is sprayed in to recoil the oil residue on the filter bag 14 to clean the filter bag 14. The upside-down manner of the filter bag 14 is more convenient for cleaning the filter residue.

In order to fix the filter bag 14 and facilitate disassembly, a locking structure is provided at each hole of the perforated plate 5. After the locking structure is made separately, the locking seat 13 and the perforated plate 5 are assembled and welded together. The installation process is as follows: the cage frame 15 is welded to the inner sleeve 9, the locking column 10 is installed in the hole on the perforated plate 5 and fixed by welding, the sealing gasket 11 is installed, the filter bag 14 is set on the cage frame 15, and the The lower end pocket of the filter bag 14 is supported by a steel ring 17, and the steel ring 17 is compressed with the compression ring 20 of the compression sleeve 12, and the gap between the three sections of curved bosses 16 on the locking seat 13 is facing and locked. The post 10 is installed, so that the locking post 10 passes through the locking seat 13, and the locking seat 13 is rotated by clamping the operation hole 19 with a wrench, so that the curved boss 16 on the locking seat 13 and the inner sleeve 9 The secure connection can be realized by pressing the locking column 10 .

The compression sleeve 12 and the fixing ring 21 are provided with three notches 22 respectively matched with a locking column, so that when the locking seat 13 is rotated, the compression sleeve 12, the compression ring 20 and the fixing ring 21 can also be rotated accordingly. . The compression sleeve 12, the compression ring 20 and the fixing ring 21 are integrally manufactured. The locking seat 13 and the curved boss 16 are integrally manufactured. The inner sleeve and the positioning ring 18 are integrally manufactured, and three holes are drilled on the inner sleeve, and the three locking columns are respectively passed through the three holes and welded as a whole with the inner sleeve.

When it is necessary to open the upper cylinder 2, first remove the flanged bolts between the upper cylinder 2 and the lower cylinder 3, operate the hand wheel 33, and hang the top cover 4 and the upper cylinder 2 through the screw 32. Then turn the two oblique support rods 26, the universal wheel 30 rolls on the ground, and the movable sleeve 24 rotates along the fixed sleeve 23. The filter bag 14 can be replaced or the components in the upper cylinder 2 can be maintained by turning the top cover 4 and the upper cylinder 2 to leave the lower cylinder 3 right above.

This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model belong to the technology of the utility model. protection scope of the program.

Claims (1)

1. bag type filter device easy to assemble, comprise support, support is provided with the upper shell and the lower shell that connect by flange, upper shell top is provided with top cover, upper shell inwall lower horizontal is provided with porous plate, in each hole of porous plate, be all connected with a bag filter that is positioned at upper shell, lower shell bottom is provided with sludge outlet, lower shell sidepiece is provided with inlet, top cover is provided with liquid outlet, it is characterized in that: described bag filter comprises inner sleeve, locking post, sealing gasket, clamping sleeve, locking bed, filter bag and cage modle frame, cage modle frame entirety is uncovered columnar structured in bottom, filter bag is enclosed within cage modle frame outside, in being fixedly connected on, cage modle frame lower end puts, locking bed is cirque structure, locking bed outer wall is fixedly connected with the hole wall of porous plate, locking bed inwall is interval with three sections of shaped form boss, inner sleeve sidepiece is laid with three locking posts that stretch out outside inner sleeve on same disc, filter bag lower end is provided with steel ring, inner sleeve bottom is provided with the locating ring that external diameter is greater than inner sleeve, locating ring is provided with handle hole, clamping sleeve upper end is provided with the hold-down ring that external diameter is less than clamping sleeve, clamping sleeve lower end is provided with the retainer ring that external diameter is greater than clamping sleeve, clamping sleeve and retainer ring are provided with three breach that coordinate with a locking post respectively, steel ring is located between hold-down ring and interior set upper side, between locating ring and retainer ring, be provided with sealing gasket, filter bag and cage modle frame be upward through locking bed and rotate three locking posts that inner sleeve makes inner sleeve sidepiece respectively with top, the upper edge interference fit of one section of shaped form boss.