High-efficiency high-temperature-resistant fireproof dust removal cloth bag

Abstract

The utility model relates to dust cloth bag technical field, concretely is a kind of high -efficient high-temperature-resistant fireproof dust cloth bag, include: cloth bag body, elastic ring, support cage and ring cover. Cloth bag body bottom is clamped in mounting plate hole inside by elastic ring, ring cover both sides are slidably inserted with limit plate, limit plate other end is abutted with pressure frame, and pressure frame is driven to move by adjusting assembly. The structure optimizes the cloth bag maintenance experience of bag opening downward installation, realizes cage stable constraint using limit plate and ring cover cooperation and pressure frame linkage adjusting assembly. When disassembling, operation adjusting assembly is unlocked, limit plate is separated from ring cover transversely, and cage is quickly separated from cloth bag. Design discards traditional bolt fastening mode, is applicable to the environment of dense arrangement of flower plate, simplifies dismounting process, improves replacement efficiency, and simultaneously ensures the reliability of cage support under high-temperature working condition.

Description

Technical Field

[0001] This utility model relates to the field of dust collector bag technology, specifically a high-efficiency, high-temperature resistant, fireproof dust collector bag. Background Technology

[0002] High-efficiency, high-temperature resistant, fire-retardant dust collector bags are a core filtration component of dry high-efficiency dust collectors, specifically designed for operation in high-temperature flue gas environments. They capture solid particles from dust-laden gas using bag-type filter elements made of woven fiber. The working principle is based on the fact that when dust-laden airflow passes through the filter cloth, dust particles are intercepted and adsorbed due to inertia, thus achieving gas-solid separation. These bags, with their excellent heat resistance, flame retardancy, and filtration accuracy, are widely used in high-temperature dust collection systems in industries such as metallurgy, cement, and power.

[0003] In existing technologies, there are two typical installation methods for high-temperature resistant, fireproof, and dust-collecting filter bags. When the filter bag is installed with the opening facing upwards, it is usually inserted into the hole in the tube sheet, and the elastic expansion ring pre-installed at the end of the bag opening is tightened and sealed with the edge of the tube sheet hole. Then, the cage frame is inserted into the filter bag to provide support. However, in applications where the filter bag is installed with the opening facing downwards, to prevent the cage frame from slipping out of the filter bag due to gravity, existing solutions require the top end plate of the cage frame to be fixedly connected to the tube sheet using bolt assemblies to ensure a stable assembly relationship between the cage frame and the filter bag.

[0004] However, the aforementioned method of fixing the filter bags with the opening facing downwards presents operational complexity during equipment maintenance. When cleaning or replacing the filter bags, operators must first disassemble each bolt connecting the cage frame and the tube sheet, release the cage frame constraint, and then separate the elastic tension rings before the entire filter bag can be removed. This process involves multiple disassembly and assembly steps. In the limited space where multiple dust collector bags are densely arranged on the tube sheet, bolt operation is easily constrained by space, and the convenience of tool use is insufficient, resulting in room for optimization in installation and disassembly efficiency and maintenance convenience. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency, high-temperature resistant, fireproof, and dust-removing filter bag to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency high-temperature resistant fireproof dust removal bag, comprising: a bag body, an elastic expansion ring fixedly connected to the bottom of the bag body, a cage frame supported inside the bag body, a ring cover fixedly connected to the bottom of the cage frame, and the bottom of the bag body near the outer ring surface of the elastic expansion ring being engaged with the inner ring surface of a hole opened on the mounting plate.

[0007] The outer ring surface of the ring is slidably inserted into one end of the limiting plate on both sides, and the other end of the limiting plate abuts against the top of the pressure frame. An adjustment component is connected to the bottom of the pressure frame, and the adjustment component is configured to drive the pressure frame to move toward the limiting plate.

[0008] Preferably, positioning grooves are provided on both sides of the outer ring surface of the ring cover, one end of the positioning groove limiting plate is slidably inserted, and the other end of the limiting plate is slidably connected to the pressure frame.

[0009] Preferably, a limiting post is fixedly connected to the top of the pressure frame, and a slot is provided on the lower surface of the limiting plate near the end of the pressure frame at the position corresponding to the limiting post, and the slot and the limiting post are slidably inserted into each other.

[0010] Preferably, the adjustment component includes a connecting shell, the top of which is fixedly connected to the lower surface of the mounting plate via a connecting block, and the bottom of which is slidably connected to both sides of the pusher.

[0011] Preferably, the upper surfaces at both ends of the push frame are fixedly connected to the inner wall of the connecting shell by a first spring, and the middle of the upper surface at the bottom end of the push frame is fixedly connected to the lower surface of the pressure frame by a second spring.

[0012] Preferably, the pressure frame is slidably installed inside the connecting housing. First limiting grooves are provided on both sides of the bottom of the pressure frame. A guide rod is provided on the side of the connecting housing near the bottom of the connecting block. The guide rod is slidably connected to a guide hole on the connecting housing, and the bottom end of the guide rod is fixedly connected to the top of the push frame.

[0013] Preferably, the first limiting groove is slidably connected to the slide rod fixedly connected to one end of the rotating plate, and the other end of the rotating plate is slidably connected to the second limiting groove opened at the end of the push frame through the slide rod fixedly connected to it. The rotating plate is rotatably connected to the connecting shell through the limiting pin.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: Through an innovative quick-release cage frame fixing structure, the maintenance experience of high-temperature fireproof dust collector bags installed with the bag opening facing downwards is significantly optimized. Utilizing the interlocking fit between the limiting plate and the ring cover, combined with the synergistic effect of the pressure frame linkage adjustment component, stable constraint of the cage frame within the filter bag is achieved. During disassembly, only the adjustment component needs to be operated to simultaneously release the locking of the pressure frame on the limiting plate and the interlocking constraint of the limiting post, allowing the limiting plate to be pulled laterally away from the ring cover, thus achieving rapid separation of the cage frame and the filter bag. This design completely abandons the traditional bolt fastening method, enabling disassembly and assembly to be completed through unidirectional operation even under densely arranged tube sheet conditions, greatly simplifying the maintenance process, effectively overcoming the inconvenience of tool use due to limited operating space, significantly improving the efficiency of filter bag replacement and cleaning, while ensuring the reliability of the cage frame support under high-temperature conditions. Attached Figure Description

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

[0016] Figure 2 This is a bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a bottom view of the internal structure of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Bag body; 2. Elastic expansion ring; 3. Cage frame; 4. Ring cover; 5. Mounting plate; 6. Hole; 7. Limiting plate; 8. Pressure frame; 9. Positioning groove; 10. Limiting post; 11. Slot; 12. Connecting shell; 13. Connecting block; 14. First spring; 15. Second spring; 16. First limiting groove; 17. Rotating plate; 18. Slide rod; 19. Second limiting groove; 20. Limiting pin; 21. Push frame; 22. Guide rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1-5 This utility model provides a technical solution: a high-efficiency, high-temperature resistant, fireproof, and dust-removing filter bag, comprising: a filter bag body 1, an elastic expansion ring 2 fixedly connected to the bottom of the filter bag body 1, the elastic expansion ring 2 having high elasticity, thereby facilitating its recovery after deformation, a cage frame 3 internally supporting the filter bag body 1, the cage frame 3 supporting the filter bag body 1 to prevent the filter bag body 1 from being sucked down or blown up under negative or positive pressure, a ring cover 4 fixedly connected to the bottom of the cage frame 3, the ring cover 4 supporting the bottom of the entire cage frame 3, the bottom of the filter bag body 1 near the outer ring surface of the elastic expansion ring 2 is engaged with the inner ring surface of the hole 6 opened on the mounting plate 5, the outer ring surface of the ring cover 4 is slidably inserted into one end of the limiting plate 7 on both sides, the other end of the limiting plate 7 abuts against the top of the pressure frame 8, and an adjustment component is connected to the bottom of the pressure frame 8, the adjustment component being configured to drive the pressure frame 8 to move toward the limiting plate 7.

[0023] In use, first fix the mounting plate 5 to the inner wall of the equipment using the connecting seats on both sides. When it is necessary to install the bag body 1 with the opening facing down, first pass the end of the bag body 1 away from the elastic expansion ring 2 through the hole 6 opened on the mounting plate 5. Then, deform the elastic expansion ring 2 by squeezing it, so that the elastic expansion ring 2 drives the bottom end of the bag body 1 to twist. Then, release the elastic expansion ring 2 to allow it to spring back. Then, under the reverse elastic force of the elastic expansion ring 2, the edge of the bag body 1 is locked into the hole. Next, insert the cage frame 3 into the bag body 1, so that the top of the ring cover 4 abuts against the lower surface of the mounting plate 5. Then, insert one end of the limiting plate 7 into the outer ring surface of the ring cover 4, and the other end of the limiting plate 7 into the pressure frame 8. Finally, by adjusting the adjustment component, the pressure frame 8 moves closer to the limiting plate 7 and presses it, thereby limiting and fixing the limiting plate 7, and thus fixing the ring cover 4 in position. The ring cover 4 then fixes the cage frame 3 inside the bag body 1, preventing the cage frame 3 from falling off.

[0024] Example 2: Based on Example 1, positioning grooves 9 are provided on both sides of the outer ring surface of the ring cover 4. One end of the positioning groove 9 is slidably inserted into the limiting plate 7, and the other end of the limiting plate 7 is slidably connected to the pressure frame 8. Through the insertion of the positioning groove 9 and the limiting plate 7, the rotation and movement of the ring cover 4 are prevented. The top of the pressure frame 8 is fixedly connected to the limiting post 10. The lower surface of the limiting plate 7 near the pressure frame 8 is provided with a slot 11 corresponding to the position of the limiting post 10. The slot 11 and the limiting post 10 are slidably inserted. When the pressure frame 8 is pressed against the lower side of the limiting plate 7, the limiting post 10 is inserted into the slot 11, thereby further limiting the limiting plate 7, further ensuring the stability of the ring cover 4, and further ensuring that the cage frame 3 is stably installed in the bag body 1, providing stable support for it.

[0025] Example 3: Based on Example 2, the adjusting assembly includes a connecting shell 12, which is divided into two parts. The two connecting shells 12 are fixedly connected by bolts and nuts. The top of the connecting shell 12 is fixedly connected to the lower surface of the mounting plate 5 by a connecting block 13. The connecting block 13, through its fixed connection with the mounting plate 5, thus fixes the connecting shell 12. The bottom of the connecting shell 12 is slidably connected to both sides of the push frame 21. The connecting shell 12 limits the push frame 21, allowing it to slide within the connecting shell 12. The pressure frame 8 is slidably installed within the connecting shell 12, and the connecting shell 12 limits the pressure frame 8. The bottom sides of the pressure frame 8 are open. A first limiting groove 16 is provided. A guide rod 22 is provided on the side of the connecting shell 12 near the bottom of the connecting block 13. The guide rod 22 is slidably connected to the guide hole opened on the connecting shell 12. The bottom end of the guide rod 22 is fixedly connected to the top of the push frame 21, so that when the push frame 21 slides in the connecting shell 12, the guide rod 22 is guided to slide in the first limiting groove 16. A slide rod 18 fixedly connected to one end of the rotating plate 17 is slidably connected. The other end of the rotating plate 17 is slidably connected to the second limiting groove 19 opened at the end of the push frame 21 through the slide rod 18 fixedly connected to it. The rotating plate 17 is rotatably connected to the connecting shell 12 through the limiting pin 20.

[0026] In the initial state, the pressure frame 8 is tightly abutted against the lower side of the limiting plate 7, and the limiting post 10 is inserted into the slot 11. At this time, the limiting plate 7 is limited and fixed. Through the limiting and fixing of the limiting plate 7, the cage frame 3 is indirectly limited and fixed. When it is necessary to disassemble and replace the bag body 1, the push frame 21 is pressed upward. The push frame 21 moves under the guidance of the guide rod 22. The push frame 21 drives the first spring 14 and the second spring 15, which are fixedly connected to its two ends in the middle, to move. Thus, under the limitation of the connecting shell 12, the first spring 14 is compressed, and under the limitation of the pressure frame 8, the second spring 15 is compressed. At the same time, through the opening at the end of the push frame 21... The sliding connection between the second limiting groove 19 and the slide rod 18 fixedly connected to one end of the rotating plate 17 allows the rotating plate 17 to rotate under the limiting pin 20. Then, the slide rod 18 fixedly connected to the other end of the rotating plate 17 presses the pressure frame 8 downward under the limiting of the first limiting groove 16. The pressure frame 8 then drives the limiting post 10 to slide out of the slot 11, thereby releasing the limiting plate 7. At this time, the limiting plate 7 can be pulled out laterally and slid out of the positioning groove 9, thereby releasing the limiting of the ring cover 4. At this time, the cage frame 3 can be taken out. Finally, by squeezing the elastic expansion ring 2, it is no longer stuck in the inner ring surface of the hole 6. Then, the cloth bag body 1 can be taken out and replaced.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency, high-temperature resistant, fireproof, and dust-collecting filter bag, comprising a filter bag body (1), characterized in that: The bottom of the bag body (1) is fixedly connected to an elastic expansion ring (2), the inside of the bag body (1) is supported by a cage frame (3), the bottom of the cage frame (3) is fixedly connected to a ring cover (4), and the bottom of the bag body (1) is close to the outer ring surface of the elastic expansion ring (2) and is engaged with the inner ring surface of the hole (6) opened on the mounting plate (5). The outer ring of the cover (4) is slidably inserted into one end of the limiting plate (7) on both sides, and the other end of the limiting plate (7) abuts against the top of the pressure frame (8). An adjustment component is connected to the bottom of the pressure frame (8), and the adjustment component is configured to drive the pressure frame (8) to move toward the limiting plate (7).

2. The high-efficiency high-temperature resistant fireproof dust removal bag according to claim 1, characterized in that: The outer ring (4) has positioning grooves (9) on both sides. The positioning groove (9) is slidably inserted into one end of the limiting plate (7), and the other end of the limiting plate (7) is slidably connected to the pressure frame (8).

3. The high-efficiency high-temperature resistant fireproof dust removal bag according to claim 2, characterized in that: The top of the pressure frame (8) is fixedly connected to a limiting post (10). A slot (11) is provided on the lower surface of the limiting plate (7) near the pressure frame (8) at the position corresponding to the limiting post (10). The slot (11) and the limiting post (10) are slidably inserted into each other.

4. The high-efficiency high-temperature resistant fireproof dust removal bag according to claim 1, characterized in that: The adjustment assembly includes a connecting shell (12), the top of which is fixedly connected to the lower surface of the mounting plate (5) via a connecting block (13), and the bottom of which is slidably connected to both sides of the pusher (21).

5. The high-efficiency high-temperature resistant fireproof dust removal bag according to claim 4, characterized in that: The upper surfaces of both ends of the push frame (21) are fixedly connected to the inner wall of the connecting shell (12) by the first spring (14), and the middle of the upper surface of the bottom end of the push frame (21) is fixedly connected to the lower surface of the pressure frame (8) by the second spring (15).

6. The high-efficiency high-temperature resistant fireproof dust removal bag according to claim 5, characterized in that: The pressure frame (8) is slidably installed inside the connecting shell (12). The pressure frame (8) has a first limiting groove (16) on both sides of the bottom. The connecting shell (12) has a guide rod (22) on the side near the bottom of the connecting block (13). The guide rod (22) is slidably connected to the guide hole on the connecting shell (12). The bottom end of the guide rod (22) is fixedly connected to the top of the push frame (21).

7. The high-efficiency high-temperature resistant fireproof dust removal bag according to claim 6, characterized in that: The first limiting groove (16) is slidably connected to the slide rod (18) fixedly connected to one end of the rotating plate (17), and the other end of the rotating plate (17) is slidably connected to the second limiting groove (19) opened at the end of the push frame (21) through the slide rod (18) fixedly connected to it. The rotating plate (17) is rotatably connected to the connecting shell (12) through the limiting pin (20).

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