Back blowing type bag-type dust collector

Abstract

The utility model relates to the technical field of bag-type dust removers, in particular to a reverse blowing type bag-type dust remover, which comprises a box body, a main body mechanism and a dust removal pattern plate are mounted on the box body, a dust removal mechanism is mounted on the dust removal pattern plate in a clamping manner, the dust removal mechanism comprises filter bags and clamping blocks, a plurality of filter bags are clamped in the dust removal pattern plate, and the clamping blocks are clamped in the filter bags. A clamping block is fixedly mounted at the top end of the filter bag, a framework flange is connected to the clamping block in a clamping manner, a cage framework is fixedly connected to the bottom end of the framework flange, a plurality of connecting rods are fixedly connected to the top end of the framework flange, and supporting rings are fixedly connected to the connecting rods; when the clamping block abuts against the top of the dust removal pattern plate, the cage framework can be placed in the filter bag, then the framework flange and the clamping block are clamped together, the framework flange and the cage framework can be disassembled conveniently through the supporting ring fixed to the connecting rod, and the use efficiency of the dust remover can be improved easily.

Description

A reverse-jet bag filter Technical Field

[0001] This utility model relates to a bag filter, specifically a reverse-blowing bag filter, and belongs to the technical field of bag filter technology. Background Technology

[0002] A baghouse dust collector is a dry dust filtration device. It is suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When the dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle down due to gravity and fall into the ash hopper. The gas containing finer dust particles is purified as it passes through the filter media, as the dust is trapped.

[0003] However, in existing baghouse dust collectors, the cages are placed inside the filter bags, and the top flanges of the cages are in contact with the top of the filter bags. When removing the cages from inside the filter bags, the hardened dust on the tube sheet can easily reduce the gap between the cage flanges and the tube sheet, making it inconvenient for operators to use tools to pry the cage flanges and hindering the quick disassembly of the cages. Summary of the Invention

[0004] The purpose of this utility model is to provide a reverse-jet bag filter to solve the above problems. When the locking block abuts against the top of the dust collector tube sheet, the cage can be placed into the filter bag, thereby locking the frame flange with the locking block. The support ring fixed on the connecting rod facilitates the disassembly of the frame flange and the cage, which helps to improve the efficiency of the dust collector.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a reverse-flushing bag filter includes a housing, on which a main body and a dust collection tube sheet are installed. A dust collection mechanism is engaged and installed on the dust collection tube sheet. The dust collection mechanism includes filter bags and clamping blocks. Several filter bags are clamped inside the dust collection tube sheet. A clamping block is fixedly installed on the top of each filter bag. A frame flange is engaged and connected to the clamping block. A cage bone is fixedly connected to the bottom of the frame flange. Several connecting rods are fixedly connected to the top of the frame flange. A support ring is fixedly connected to the connecting rod.

[0006] Preferably, the card block is fixedly connected to the top of the dust removal tube sheet, and the sidewall of the card block is provided with a serrated structure.

[0007] Preferably, the dust removal mechanism further includes grooves and slots, with a plurality of grooves arranged in a ring at equal intervals inside the frame flange, and a slot provided at the bottom of the frame flange.

[0008] Preferably, a card block is engaged with the card slot, and the depth of the card slot is less than the thickness of the card block.

[0009] Preferably, a plurality of the connecting rods are arranged in a ring at equal intervals, and the diameter of the support ring is smaller than the diameter of the skeleton flange.

[0010] Preferably, the cage is located inside the filter bag, and the diameter of the skeleton flange is larger than the diameter of the clamping block.

[0011] Preferably, the dust removal tube sheet is provided with several sets of through holes at equal intervals, and filter bags and cages are placed in the through holes.

[0012] Preferably, the main structure includes an air duct and an air tank. The top of the box is connected to the air duct, the air tank is fixedly installed on the box, a plurality of soot blowing pipes are connected inside the air tank, a box cover and a bracket are fixedly installed on the box, and an ash hopper is connected to the bottom of the box.

[0013] Preferably, the ash hopper is arranged with an inclined structure, and several of the ash blowing pipes are engaged and connected to the housing.

[0014] The beneficial effects of this utility model are as follows: First, the filter bag is placed inside the dust collector tube sheet. Since the top of the filter bag is fixed with a locking block, the locking block can be fixed to the top of the dust collector tube sheet by high-temperature adhesive or hot-melt welding, thereby limiting the locking block and the filter bag. Next, by holding the support ring, several connecting rods fixed at its bottom end can drive the frame flange to move. The bottom end of the frame flange is fixed with cage bones. The frame flange drives the cage bones to move into the filter bag, so that the bottom end of the cage bones can open the bottom of the filter bag, thereby putting the bottom of the filter bag in an unfolded state. When the bottom end of the frame flange is engaged with the locking block, the frame flange can be limited, thereby helping to prevent the cage bones from shaking inside the filter bag. When the filter bag needs to be cleaned, by holding the support ring, the connecting rods can drive the frame flange upward, thereby allowing the cage bones to slide out from the inside of the filter bag, making it easy to disassemble the cage bones. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a schematic diagram of the connection structure of the dust collector tube sheet and filter bag of this utility model;

[0017] Figure 3 is an enlarged structural diagram of part A shown in Figure 2;

[0018] Figure 4 is a schematic diagram of the connection structure of the dust removal tube sheet and through holes of this utility model;

[0019] Figure 5 is an enlarged structural diagram of part B shown in Figure 4;

[0020] Figure 6 is a schematic diagram of the connection structure of the filter bag and the card block of this utility model;

[0021] Figure 7 is a schematic diagram of the connection structure of the skeleton flange and connecting rod of this utility model.

[0022] In the diagram: 1. Housing; 2. Main structure; 201. Air duct; 202. Housing cover; 203. Soot blowing pipe; 204. Air tank; 205. Ash hopper; 206. Support; 3. Dust collector tube sheet; 4. Dust collection mechanism; 401. Filter bag; 402. Frame flange; 403. Connecting rod; 404. Support ring; 405. Groove; 406. Cage; 407. Locking block; 408. Locking slot; 5. Through hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1-7. A reverse-jet baghouse dust collector includes a housing 1. A main body mechanism 2 and a dust collection tube sheet 3 are mounted on the housing 1. A dust collection mechanism 4 is snapped onto the dust collection tube sheet 3. The dust collection mechanism 4 includes filter bags 401 and locking blocks 407. Several filter bags 401 are held within the dust collection tube sheet 3. Locking blocks 407 are fixedly installed at the top of each filter bag 401. The locking blocks 407 can be fixed to the top of the dust collection tube sheet 3 using high-temperature adhesive or hot-melt welding, thereby limiting the position of the locking blocks 407 and the filter bags 401. The sides of the locking blocks 407... The wall has a sawtooth structure. A frame flange 402 is engaged with the locking block 407. A cage bone 406 is fixedly connected to the bottom end of the frame flange 402. Several connecting rods 403 are fixedly connected to the top end of the frame flange 402. A support ring 404 is fixedly connected to the connecting rod 403. By holding the support ring 404, the connecting rod 403 can drive the frame flange 402 to move. The frame flange 402 drives the cage bone 406 to move into the inside of the filter bag 401. The bottom end of the cage bone 406 can open the bottom of the filter bag 401, thereby putting the bottom of the filter bag 401 in an unfolded state.

[0025] As a technical optimization of this utility model, the dust removal mechanism 4 further includes a groove 405 and a slot 408. The frame flange 402 is provided with a number of grooves 405 in an annular shape at equal intervals. The grooves 405 are provided to facilitate the prying of the frame flange 402 with tools during disassembly, thereby separating the frame flange 402 from the slot 407. The bottom of the frame flange 402 is provided with a slot 408, and a slot 407 is engaged with the slot 408. The depth of the slot 408 is less than the thickness of the slot 407. The frame flange 402 and the slot 407 are engaged together to prevent the cage 406 from moving inside the filter bag 401.

[0026] As a technical optimization of this utility model, the dust removal tube sheet 3 is provided with several sets of through holes 5 at equal intervals. The filter bag 401 and the cage 406 are placed in the through holes 5. When the filter bag 401 is located in the through hole 5, the cage 406 can be placed inside the filter bag 401.

[0027] As a technical optimization of this utility model, the main structure 2 includes a duct 201 and a gas storage tank 204. The top of the box 1 is connected to the duct 201. In use, dirty gas enters the interior of the box 1, passes through the outside of the filter bag 401 and penetrates inward. Dust is trapped on the outer surface of the filter bag 401, and clean gas is discharged from the top of the filter bag 401. It can be discharged into the interior of the box 1 through the duct 201, thus facilitating the dust removal treatment of the gas. The gas storage tank 204 is fixedly installed on the box 1. Several soot blowing pipes 203 are connected inside the gas storage tank 204. The several soot blowing pipes 203 are engaged with the box 1. The box 1 is fixedly installed with a box cover 202 and a bracket 206. The bottom of the box 1 is connected to a dust hopper 205. The gas storage tank 204 balances the pulsating airflow and evenly distributes the high-pressure gas to each pulse valve. The airflow is guided by the nozzle to be injected vertically into the filter bag 401, which can achieve efficient dust removal.

[0028] In use, the operator first places the filter bag 401 inside the dust collector tube sheet 3. Since a locking block 407 is fixed to the top of the filter bag 401, the locking block 407 can be fixed to the top of the dust collector tube sheet 3 using high-temperature adhesive or hot-melt welding, thus limiting the position of the locking block 407 and the filter bag 401. Next, by holding the support ring 404, several connecting rods 403 fixed to its bottom end can move the frame flange 402. A cage bone 406 is fixed to the bottom end of the frame flange 402. The frame flange 402 moves the cage bone 406 inside the filter bag 401, allowing the bottom end of the cage bone 406 to open the bottom of the filter bag 401, thus placing the bottom of the filter bag 401 in an unfolded state. When the locking groove 408 at the bottom end of the frame flange 402 engages with the locking block 407, it can... The cage flange 402 is positioned to limit the movement of the cage 406 inside the filter bag 401. When cleaning the filter bag 401, holding the support ring 404 allows the connecting rod 403 to move the cage flange 402 upwards, enabling the cage 406 to slide out from inside the filter bag 401 for easy disassembly. During use, dirty gas enters the housing 1, passes through the outside of the filter bag 401, and penetrates inwards. Dust is trapped on the outer surface of the filter bag 401, while clean gas is discharged from the top of the filter bag 401 and can be discharged into the housing 1 through the duct 201, facilitating dust removal. The gas storage tank 204 balances the pulsating airflow, evenly distributing high-pressure gas to each pulse valve. The airflow is guided vertically into the filter bag 401 through the nozzle, achieving efficient dust removal.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reverse-jet bag filter, comprising a housing (1), characterized in that: The main body (2) and dust removal tube sheet (3) are installed on the box (1). A dust removal mechanism (4) is installed on the dust removal tube sheet (3). The dust removal mechanism (4) includes filter bags (401) and clamping blocks (407). Several filter bags (401) are placed inside the dust removal tube sheet (3). A clamping block (407) is fixedly installed on the top of the filter bag (401). A skeleton flange (402) is clamped on the clamping block (407). A cage bone (406) is fixedly connected to the bottom of the skeleton flange (402). Several connecting rods (403) are fixedly connected to the top of the skeleton flange (402). A support ring (404) is fixedly connected to the connecting rod (403).

2. The reverse-jet bag filter according to claim 1, characterized in that: The card block (407) is fixedly connected to the top of the dust removal tube sheet (3), and the side wall of the card block (407) is provided with a sawtooth structure.

3. The reverse-jet bag filter according to claim 1, characterized in that: The dust removal mechanism (4) also includes grooves (405) and slots (408). The frame flange (402) has several grooves (405) arranged in a ring at equal intervals, and the bottom of the frame flange (402) has slots (408).

4. A reverse pulse baghouse filter according to claim 3, wherein: The slot (408) is fitted with a card block (407), and the depth of the slot (408) is less than the thickness of the card block (407).

5. A reverse pulse baghouse filter according to claim 1, wherein: Several of the connecting rods (403) are arranged in a ring at equal intervals, and the diameter of the support ring (404) is smaller than the diameter of the skeleton flange (402).

6. A reverse pulse baghouse filter according to claim 1, wherein: The cage (406) is located inside the filter bag (401), and the diameter of the skeleton flange (402) is larger than the diameter of the clamping block (407).

7. A reverse pulse baghouse filter according to claim 1, wherein: The dust removal tube sheet (3) is provided with several sets of through holes (5) at equal intervals, and filter bags (401) and cages (406) are placed in the through holes (5).

8. A reverse-jet bag filter according to claim 1, characterized in that: The main structure (2) includes a duct (201) and a gas storage tank (204). The top of the box (1) is connected to the duct (201). The gas storage tank (204) is fixedly installed on the box (1). Several soot blowing pipes (203) are connected inside the gas storage tank (204). The box (1) is fixedly installed with a box cover (202) and a bracket (206). The bottom of the box (1) is connected to a ash hopper (205).

9. A reverse-jet bag filter according to claim 8, characterized in that: The ash hopper (205) is arranged with an inclined structure, and several of the soot blowing pipes (203) are engaged and connected to the box body (1).

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