Cloth bag dust removal connecting structure
By employing a connecting ring and expansion ring structure in the bag filter, combined with a sealing groove and spring sealing ring, the problem of gas leakage caused by thermal expansion and contraction is solved, achieving efficient sealing and convenient bag replacement, thereby improving the operational stability and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAM KANGYUAN CHEM CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-14
AI Technical Summary
Existing baghouse dust collectors fail to consider thermal expansion and contraction when connecting pipes to the bag body, leading to leakage of dust-laden gas, which affects air quality and dust removal efficiency.
The bag employs a connecting ring and expansion ring structure, and achieves multi-layer sealing through a combination of sealing grooves, springs, and sealing rings to prevent gas leakage. The design also includes a disassembly component for easy replacement and maintenance of the filter bag.
It effectively prevents the leakage of dust-laden gas, ensures a safe working environment, improves dust removal efficiency, extends equipment life, and facilitates quick disassembly and maintenance of the filter bags.
Smart Images
Figure CN224113571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag filter technology, and in particular to a bag filter connection structure. Background Technology
[0002] Baghouse dust collectors are a highly efficient purification technology that uses the principle of bag filtration to remove particulate matter from dust-laden gas. They are widely used in industrial waste gas treatment and other fields. The connection structure is mainly responsible for firmly connecting the filter bags to related pipelines and equipment, ensuring that dust-laden gas can smoothly enter the filter bags for filtration. A reasonable connection structure can ensure the stable operation of the baghouse dust collector system, reduce the risk of gas leakage, and improve the overall dust removal efficiency and equipment lifespan.
[0003] Baghouse dust collectors are mainly connected to the outlet of dust-generating equipment through pipelines, introducing dust-laden gas into the dust collector. The filter bags inside are supported and fixed to the tube sheet by the frame. The tube sheet plays a role in separation and sealing. When the gas passes through the filter bags, the dust is intercepted by the filter bags, and the clean gas passes through the filter bags and enters the upper chamber for discharge. As dust accumulates on the surface of the filter bags, it is collected in the dust hopper by periodic dust removal devices (such as pulse jet cleaning).
[0004] In existing technologies, some bag filter connection structures simply use flanges to connect the pipes to the filter bag body without considering the thermal expansion and contraction of the pipes. When the temperature changes during equipment operation, gaps will appear between the pipes and flanges, leading to the leakage of dust-laden gas. This increases the dust concentration in the workplace, affecting air quality and the health of workers, resulting in a decrease in dust removal efficiency. Some dust-laden gas leaks out without effective treatment, causing environmental pollution. Therefore, a new bag filter connection structure is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a bag filter connection structure, which aims to improve the problem of dust-laden gas leakage and increased dust concentration in the workplace caused by the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A bag filter dust collector connection structure includes a first connecting ring, two connecting blocks fixedly connected to the inner wall of the first connecting ring, an expansion ring fixedly connected to the left side of the first connecting ring, a protruding ring fixedly connected to the left side of the first connecting ring, a second connecting ring detachably connected to the left side of the first connecting ring, a sealing groove formed inside the second connecting ring, a plurality of springs fixedly connected to the inner wall of the sealing groove, a sealing ring fixedly connected to the right side of the springs, a retaining ring fixedly connected inside the second connecting ring, a retaining groove formed inside the retaining ring, and a disassembly assembly for disassembling the filter bag slidably connected inside the first connecting ring.
[0008] As a further description of the above technical solution:
[0009] The disassembly assembly includes a sliding plate, a slip ring fixedly connected to the bottom of the sliding plate, a spring two fixedly connected to the left side of the slip ring, a limit hole opened inside the slip ring, and a screw threaded into the limit hole;
[0010] As a further description of the above technical solution:
[0011] The slip ring is detachably connected to a clamp on its right side, and a dust bag is fixedly connected to the right side of the clamp.
[0012] As a further description of the above technical solution:
[0013] The connecting ring has a groove inside, and the outside of the sliding plate is slidably connected to the inside of the groove;
[0014] As a further description of the above technical solution:
[0015] The outer side of the slip ring is slidably connected to the inside of the slide groove, and the left side of the second spring is fixedly connected to the inner wall of the first connecting ring.
[0016] As a further description of the above technical solution:
[0017] The outer side of the clamp is in contact with the outer side of the slip ring, and the outer side of the connecting block is in contact with the left side of the clamp ring;
[0018] As a further description of the above technical solution:
[0019] An air inlet pipe is fixedly connected to the left side of the second connecting ring, and the outside of the connecting block is slidably connected to the inside of the slot.
[0020] As a further description of the above technical solution:
[0021] The left side of the convex ring is in contact with the right side of the sealing groove, and the outer side of the slip ring is slidably connected to the inside of the connecting ring.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the connecting block enters the interior of the second connecting ring through the slot. Then, the first connecting ring is rotated, causing the connecting block to lock into the retaining ring. At the same time, when the convex ring squeezes the sealing ring, the sealing ring, through the elastic action of the first spring on the rear side, makes the sealing ring and the convex ring fit tightly together, causing the sealing ring to deform. Meanwhile, after installation, the expansion ring is squeezed and then expands, filling the tiny gaps between the first connecting ring and the second connecting ring. This effectively prevents the escape of dust-laden gas, ensures a clean and safe working environment, greatly reduces the harm of dust to personnel health and the surrounding environment, and maintains a stable airflow and pressure environment inside the bag filter, ensuring efficient dust removal operations and helping to extend the reliable operating cycle and service life of the equipment.
[0024] 2. In this utility model, the clamp is pressed and bent to be placed inside the connecting ring. Due to the elasticity of the clamp, it automatically resets and enters the interior of the slide groove. By moving the sliding plate, the sliding ring is driven to slide to the appropriate position. The screw is driven into the interior of the limiting hole, thereby effectively reducing the interference of surrounding parts when the bag is disassembled, making it easy to quickly and safely remove the bag. This is beneficial for the efficient maintenance and replacement of the bag and the overall overhaul of the equipment. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a bag filter connection structure proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the retaining ring of the bag filter connection structure proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the slide plate of the bag dust collector connection structure proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the connecting block of a bag filter dust collector connection structure proposed in this utility model.
[0029] Legend:
[0030] 1. Connecting ring one; 2. Connecting block; 3. Expansion ring; 4. Protruding ring; 5. Connecting ring two; 6. Sealing groove; 7. Spring one; 8. Sealing ring; 9. Snap ring; 10. Snap groove; 11. Slide groove; 12. Slide plate; 13. Slip ring; 14. Spring two; 15. Limiting hole; 16. Screw; 17. Clamp; 18. Dust bag; 19. Air inlet pipe. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a bag filter connection structure, including a connecting ring 1, which serves as a transition between a connecting ring 2 5 and a dust bag 18. Two connecting blocks 2 are fixedly connected to the inner wall of the connecting ring 1, connecting the connecting blocks 2 to the connecting ring 2 5. An expansion ring 3 is fixedly connected to the left side of the connecting ring 1, expanding and sealing under pressure. A protruding ring 4 is fixedly connected to the left side of the connecting ring 1, compressing a sealing ring 8. A connecting ring 2 5 is detachably connected to the left side of the connecting ring 1, connecting the air inlet. The transition between tube 19 and connecting ring 1 is achieved by a sealing groove 6 inside connecting ring 2 5. Multiple springs 7 are fixedly connected to the inner wall of the sealing groove 6. A sealing ring 8 is fixedly connected to the right side of spring 7. Under the elastic action of spring 7, the sealing ring 8 can fit tightly against the protruding ring 4 of connecting ring 1. A retaining ring 9 is fixedly connected inside connecting ring 2. The retaining ring 9 is used to connect with connecting block 2. A retaining groove 10 is opened inside retaining ring 9. The retaining groove 10 is used for connecting block 2 to enter. A disassembly component for disassembling the cloth bag is slidably connected inside connecting ring 1.
[0033] Reference Figure 1 and Figure 3 The disassembly assembly includes a slide plate 12, which drives the slide ring 13 to slide. The slide ring 13 is fixedly connected to the bottom of the slide plate 12. The slide ring 13 is used to slide and limit the clamp 17. A spring 14 is fixedly connected to the left side of the slide ring 13. The spring 14 automatically resets after the operation is completed. A limit hole 15 is opened inside the slide ring 13. A screw 16 is threaded inside the limit hole 15. With the cooperation of the limit hole 15 and the screw 16, the clamp 17 is limited and fixed.
[0034] Reference Figure 1 and Figure 2The slip ring 13 is detachably connected to the right side of the clamp 17. The slip ring 13 is used to limit and fix the clamp 17. The right side of the clamp 17 is fixedly connected to the dust bag 18, which is used to absorb dust. The inside of the connecting ring 11 is provided with a sliding groove 11, which provides guidance for the slide plate 12. The outside of the slide plate 12 is slidably connected to the inside of the sliding groove 11, ensuring that the slide plate 12 can slide freely and smoothly in the sliding groove 11. The outside of the slip ring 13 is slidably connected to the inside of the sliding groove 11. Under the action of the spring 14, the slip ring 13 can elastically displace in the left and right directions along the sliding groove 11. The left side of the spring 14 is fixedly connected to the inner wall of the connecting ring 11. The spring 14 plays a key role in elastic reset and power transmission.
[0035] The outer side of clamp 17 contacts the outer side of slip ring 13, and the outer side of connecting block 2 contacts the left side of clamp ring 9, ensuring the stability of the connection. The left side of connecting ring 2 5 is fixedly connected to air inlet pipe 19, which serves as the input channel for dust-laden gas. The outer side of connecting block 2 is slidably connected to the inside of clamp groove 10, so that connecting ring 1 and connecting ring 2 5 can be more accurately aligned when connected. The left side of convex ring 4 contacts the right side of sealing groove 6, so that convex ring 4 can be tightly embedded in sealing groove 6. Combined with spring 1 7 and sealing ring 8 in sealing groove 6, a multi-layer sealing structure is formed. The outer side of slip ring 13 is slidably connected to the inside of connecting ring 1, so that slip ring 13 can stably perform axial displacement movement inside connecting ring 1.
[0036] Working principle: During use, when connecting ring 1 and connecting ring 2 are connected, connecting block 2 enters the interior of connecting ring 2 through slot 10. Then, connecting ring 1 is rotated so that connecting block 2 locks ring 9. At the same time, when convex ring 4 compresses sealing ring 8, sealing ring 8 is tightly fitted with convex ring 4 by the elastic action of spring 7 on the rear side, causing sealing ring 8 to deform. Meanwhile, after installation, expansion ring 3 is compressed and then expands, filling the tiny gaps between connecting ring 1 and connecting ring 2, thereby achieving a sealing effect.
[0037] When the dust bag 18 needs to be installed, press the clamp 17 to bend it and place it inside the connecting ring 1. Due to the elasticity of the clamp 17, it will automatically return to its original position and enter the slide groove 11. By moving the slide plate 12, the sliding ring 13 will slide. When it slides to the appropriate position, the screw 16 will be driven into the limiting hole 15 to fix the dust bag 18. When it needs to be disassembled, remove the screw 16. The sliding ring 13 will automatically return to its original position through the spring 14 on the left side, and then the dust bag 18 will be pulled to complete the disassembly.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bag filter connection structure, comprising a connecting ring (1), characterized in that: Two connecting blocks (2) are fixedly connected to the inner wall of the connecting ring one (1). An expansion ring (3) is fixedly connected to the left side of the connecting ring one (1). A convex ring (4) is fixedly connected to the left side of the connecting ring one (1). A connecting ring two (5) is detachably connected to the left side of the connecting ring one (1). A sealing groove (6) is provided inside the connecting ring two (5). Multiple springs one (7) are fixedly connected to the inner wall of the sealing groove (6). A sealing ring (8) is fixedly connected to the right side of the springs one (7). A retaining ring (9) is fixedly connected inside the connecting ring two (5). A retaining groove (10) is provided inside the retaining ring (9). A disassembly assembly for disassembling the cloth bag is slidably connected inside the connecting ring one (1).
2. The bag filter connection structure according to claim 1, characterized in that: The disassembly assembly includes a slide plate (12), a slip ring (13) is fixedly connected to the bottom of the slide plate (12), a spring (14) is fixedly connected to the left side of the slip ring (13), a limiting hole (15) is opened inside the slip ring (13), and a screw (16) is threaded inside the limiting hole (15).
3. The bag filter connection structure according to claim 2, characterized in that: The slip ring (13) is detachably connected to a clamp (17) on its right side, and a dust bag (18) is fixedly connected to the right side of the clamp (17).
4. The bag filter connection structure according to claim 2, characterized in that: The connecting ring (1) has a groove (11) inside, and the sliding plate (12) is slidably connected to the inside of the groove (11).
5. The bag filter connection structure according to claim 4, characterized in that: The outer side of the slip ring (13) is slidably connected to the inside of the slide groove (11), and the left side of the second spring (14) is fixedly connected to the inner wall of the first connecting ring (1).
6. The bag filter connection structure according to claim 3, characterized in that: The outer side of the clamp (17) is in contact with the outer side of the slip ring (13), and the outer side of the connecting block (2) is in contact with the left side of the retaining ring (9).
7. The bag filter connection structure according to claim 1, characterized in that: An air inlet pipe (19) is fixedly connected to the left side of the connecting ring 2 (5), and the outside of the connecting block (2) is slidably connected to the inside of the slot (10).
8. The bag filter connection structure according to claim 2, characterized in that: The left side of the convex ring (4) is in contact with the right side of the sealing groove (6), and the outside of the slip ring (13) is slidably connected to the inside of the connecting ring (1).