High-efficiency anti-shrinkage dust removal cloth bag
By employing a multi-layered reinforcement and treatment structure and adjustment components in the dust collector bag, the problem of heat shrinkage of the bag under high temperature is solved, thereby improving the dimensional stability and filtration efficiency of the bag under high temperature environment, extending its service life and reducing operating costs.
Patent Information
- Application Number
- CN202423268119.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In high-temperature environments, dust collector bags undergo shape changes due to thermal shrinkage, affecting filtration efficiency and service life. Existing technologies do not offer effective solutions.
The filter bag employs a multi-layered reinforcement and treatment structure, including an anti-shrinkage component composed of aramid fiber, P84 polyimide, PPS polyphenylene sulfide, modified polyester, and PTFE membrane. Combined with an adjustment component consisting of an anti-shrinkage support rod and a limiting spring, it ensures the dimensional stability and filtration efficiency of the filter bag at high temperatures.
It effectively prevents heat shrinkage, maintains the stable shape of the filter bag, improves filtration efficiency and service life, and reduces operating costs.
Smart Images

Figure CN223654639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust collector bag technology, specifically to a high-efficiency shrinkage-resistant dust collector bag. Background Technology
[0002] Dust collector bags are a key component in industrial dust collection and filtration systems, used to capture particulate matter in air or gas streams to reduce pollutants emitted into the atmosphere. Selecting the right dust collector bag is crucial for ensuring efficient and reliable dust control.
[0003] In industrial dust collection systems, filter bags play a crucial role in capturing and removing particulate matter from air or other gas streams to ensure that exhaust gases released into the atmosphere meet environmental standards. However, when high-temperature environments are involved, such as certain metallurgical, incineration, or chemical production processes, the filter media used in filter bags needs to withstand high temperatures. This causes changes in the physical properties of the bag material, the most common of which is thermal shrinkage, where the material reduces in volume upon heating. This results in changes to the shape of the filter bag, such as shortening or reducing its diameter.
[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in related technologies, this utility model proposes a high-efficiency shrinkage-resistant dust collector bag to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A high-efficiency anti-shrinkage dust collector bag includes a dust collector bag body, an anti-shrinkage component is disposed inside the dust collector bag body, and adjustment components are disposed at both ends of the dust collector bag body. The anti-shrinkage component includes a first reinforcing layer disposed inside the dust collector bag body, a first treatment layer is disposed around the first reinforcing layer and is adapted to the first reinforcing layer, and a second treatment layer is disposed on the inner and outer walls of the first treatment layer.
[0008] Furthermore, in order to better ensure the protective effect of the dust collector bag, a third treatment layer is provided on the outer wall of the second treatment layer. The outer wall of the third treatment layer is provided with a protective coating, and the protective coating is compatible with the third treatment layer.
[0009] Furthermore, in order to better ensure the shrinkage resistance of the bag, a second reinforcing layer is provided between the second treatment layer and the third treatment layer, and the second reinforcing layer is compatible with the second treatment layer and the third treatment layer.
[0010] Furthermore, to better ensure the connection effect, the adjustment component includes multiple snap-fit seats, which are fixedly disposed on the outer wall of the protective coating. Multiple placement shielding plates are symmetrically arranged on the outer wall of the protective coating. Anti-shrinkage support rods are snapped onto both ends of the snap-fit seats, and the anti-shrinkage support rods pass through the interior of the placement shielding plates.
[0011] Furthermore, in order to better ensure the limiting effect, a placement groove is provided at one end of the anti-shrinkage support rod, a limiting spring is provided inside the placement groove, a limiting ball is provided at one end of the limiting spring, and connecting plates are provided at both ends of the dust collector bag body, with multiple connecting holes provided at one end of the connecting plate.
[0012] Furthermore, in order to better ensure the connection effect, a sliding limiting groove is provided on one side of the connecting hole, and a limiting protrusion is slidably connected inside the sliding limiting groove. An adjustment plate is fixedly provided at the upper end of the limiting protrusion, and multiple connecting brackets are connected to the upper end of one of the adjustment plates by a screw.
[0013] Furthermore, to better ensure the sealing effect, a limiting groove is provided at one end of the adjusting plate, and the limiting ball is adapted to the limiting groove. Sealing rings are provided on the inner and outer sides of the connecting plate.
[0014] The beneficial effects of this utility model are as follows: By setting an anti-shrinkage component inside the dust collector bag body, including multiple layers of reinforcement and treatment, the dimensional stability of the bag under high temperature environment is effectively enhanced, preventing shape changes caused by heat shrinkage, thereby ensuring that the filtration efficiency does not decrease during long-term use. By setting an adjustment component, the anti-shrinkage support rod and the limit spring work together, which not only provides additional mechanical strength, but also allows the bag to maintain an ideal tension state during installation and operation, avoiding the problem of being too tight or too loose, thereby further ensuring the anti-shrinkage effect. In addition, the setting of protective coating and sealing ring enhances the bag's resistance to harsh external conditions, extends its service life, reduces the replacement frequency, and reduces operating costs. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a structural diagram of a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present utility model;
[0017] Figure 2This is an exploded view of the structure of a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present utility model;
[0018] Figure 3 This is a cross-sectional view of the main body structure of a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present utility model;
[0019] Figure 4 This is a schematic diagram of the anti-shrinkage component of a high-efficiency anti-shrinkage dust collector bag according to an embodiment of the present utility model;
[0020] Figure 5 yes Figure 4 Enlarged view of point a in the middle;
[0021] Figure 6 This is an exploded view of the anti-shrinkage component structure of a high-efficiency anti-shrinkage dust collector bag according to an embodiment of the present utility model;
[0022] Figure 7 This is a structural breakdown of an adjustment component for a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present invention. Figure 1 ;
[0023] Figure 8 This is a side view of the adjustment component structure of a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present invention. Figure 1 ;
[0024] Figure 9 This is a structural breakdown of an adjustment component for a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present invention. Figure 2 ;
[0025] Figure 10 This is a side view of the adjustment component structure of a high-efficiency shrinkage-resistant dust collector bag according to an embodiment of the present invention. Figure 2 .
[0026] In the picture:
[0027] 1. Dust collector bag body; 2. Anti-shrinkage component; 201. First reinforcing layer; 202. First treatment layer; 203. Second treatment layer; 204. Third treatment layer; 205. Protective coating; 206. Second reinforcing layer; 3. Adjustment component; 301. Snap-fit seat; 302. Placement shield; 303. Anti-shrinkage support rod; 304. Limiting spring; 305. Limiting ball; 306. Connecting plate; 307. Connecting hole; 308. Sliding limiting groove; 309. Limiting protrusion; 310. Adjustment plate; 4. Placement groove; 5. Connecting bracket; 6. Limiting groove; 7. Sealing ring. Detailed Implementation
[0028] 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.
[0029] Example 1:
[0030] like Figures 1-10 As shown, a high-efficiency anti-shrinkage dust collector bag according to an embodiment of the present utility model includes a dust collector bag body 1, and an anti-shrinkage component 2 is provided inside the dust collector bag body 1 to ensure the anti-shrinkage effect of the dust collector bag body 1.
[0031] The anti-shrinkage component 2 includes a first reinforcing layer 201, which is made of aramid fiber and is disposed inside the dust collector bag body 1. A first treatment layer 202 is disposed around the first reinforcing layer 201, which is made of P84 (polyimide) and is adapted to the first reinforcing layer 201. A second treatment layer 203 is disposed on the inner and outer walls of the first treatment layer 202, and the second treatment layer 203 is made of polyphenylene sulfide (PPS). The outer wall of 03 is provided with a third treatment layer 204, which is made of modified polyester. The outer wall of the third treatment layer 204 is provided with a protective coating 205, which is made of PTFE film and is compatible with the third treatment layer 204. A second reinforcing layer 206 is provided between the second treatment layer 203 and the third treatment layer 204. The second reinforcing layer 206 is made of glass fiber and is compatible with the second treatment layer 203 and the third treatment layer 204.
[0032] In practical applications, a first reinforcing layer 201 (aramid fiber) serves as the inner layer's basic support material. Aramid fiber possesses high strength and low heat shrinkage characteristics, enabling it to maintain the bag's shape under high-temperature conditions and prevent dimensional shrinkage caused by temperature changes. A first treatment layer 202 (P84 polyimide) surrounds the first reinforcing layer 201, providing excellent filtration efficiency, particularly effective interception of fine particles. P84 material itself exhibits excellent temperature resistance and chemical stability, making it suitable for harsh working conditions. A second treatment layer 203 (PPS polyphenylene sulfide) further enhances the bag's corrosion resistance and abrasion resistance, while also providing better filtration accuracy. PPS also possesses excellent thermal stability and mechanical strength. A third treatment layer 204 (modified polyester) further enhances the overall integrity of the bag. The filter bag is flexible and its durability when in contact with the external environment is improved. It also provides a certain degree of water and oil resistance. By setting a protective coating 205 (PTFE membrane), the outermost PTFE membrane not only provides an extra protective barrier for the entire filter bag, effectively resisting the effects of acid and alkali corrosion and other harmful substances, but also makes dust removal easier and improves cleaning efficiency due to its smooth surface that does not easily attract dust. By setting a second reinforcing layer 206 (glass fiber), located between the second treatment layer 203 and the third treatment layer 204, the physical strength of the filter bag is enhanced, ensuring that it will not be easily damaged or deformed during long-term use. Glass fiber has high heat resistance and mechanical strength, making it an ideal choice for reinforcement materials. Through the cooperation of each layer of materials, not only is the shrinkage resistance of the filter bag improved, but its filtration effect, durability and maintenance convenience are also greatly enhanced.
[0033] Example 2:
[0034] like Figures 1-10 As shown, a high-efficiency anti-shrinkage dust collector bag according to an embodiment of the present utility model includes a dust collector bag body 1, and adjustment components 3 are provided at both ends of the dust collector bag body 1.
[0035] Adjustment component 3 includes multiple snap-fit seats 301, which are fixedly mounted on the outer wall of the protective coating 205. Six placement shielding plates 302 are symmetrically arranged on the outer wall of the protective coating 205, made of flexible fabric. Anti-shrinkage support rods 303 are snapped onto both ends of the snap-fit seats 301, and the anti-shrinkage support rods 303 pass through the interior of the placement shielding plates 302. One end of the anti-shrinkage support rod 303 has a placement groove 4, and a limit spring 304 is installed inside the placement groove 4. One end of the limit spring 304 has a limit ball 305. The dust collector bag body... 1 has connecting plates 306 at both ends. One end of the connecting plate 306 has multiple connecting holes 307. A sliding limiting groove 308 is provided on one side of the connecting hole 307. A limiting protrusion 309 is slidably connected inside the sliding limiting groove 308. An adjusting plate 310 is fixedly provided on the upper end of the limiting protrusion 309. Multiple connecting brackets 5 are connected to the upper end of one of the adjusting plates 310 through a screw. A limiting groove 6 is provided on one end of the adjusting plate 310, and a limiting ball 305 is adapted to the limiting groove 6. Sealing rings 7 are provided on the inner and outer sides of the connecting plate 306.
[0036] In practical applications, the anti-shrinkage support rod 303 is fixed in the snap-fit seat 301 through the snap-fit structure at both ends and passes through the placement shielding plate 302. These placement shielding plates 302 are made of flexible fabric and can provide additional protection without affecting the function of the support rod. The limiting protrusion 309 on the adjusting plate 310 is inserted into the connection hole 307. Then, by rotating the adjusting plate 310, the limiting protrusion 309 slides in the sliding limiting groove 308. When the adjusting plate 310 slides to a certain position, the limiting spring 304 pushes out the limiting ball 305 when there is no external force, so that it is embedded in the limiting recess on the adjusting plate 310. In groove 6, the position of the adjusting plate 310 is locked to ensure that it will not move at will, thereby realizing flexible adjustment of the tension of the bag and ensuring the anti-shrinkage effect. When it is necessary to adjust or replace the bag, apply appropriate pressure to retract the limiting ball 305 into the groove 4, and the adjusting plate 310 can be easily slid for operation. The top of one of the adjusting plates 310 is connected to four connecting brackets 5 by screws, which further enhances the connection strength between the bag and the external structure and ensures the stability of the bag during operation. The sealing rings 7 set on the inner and outer sides of the connecting plate 306 ensure good sealing at the interface, prevent dust leakage, and improve the efficiency of the overall system.
[0037] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0038] In summary, by utilizing the above-mentioned technical solution of this utility model, a first reinforcing layer 201 (aramid fiber) is provided as the basic support material of the inner layer. Aramid fiber has high strength and low heat shrinkage characteristics, which can maintain the shape of the filter bag under high temperature conditions and prevent dimensional shrinkage caused by temperature changes. By providing a first treatment layer 202 (P84 polyimide) surrounding the outside of the first reinforcing layer 201, good filtration efficiency is provided, especially for the effective interception of fine particles. P84 material itself has excellent temperature resistance and chemical stability, making it suitable for harsh working conditions. By providing a second treatment layer 203 (PPS polyphenylene sulfide), the corrosion resistance and wear resistance of the filter bag are further enhanced, while providing better filtration accuracy. The bag also boasts excellent thermal stability and mechanical strength. A third treatment layer 204 (modified polyester) increases the bag's overall flexibility and improves its durability when in contact with the external environment. It also provides some water and oil resistance. A protective coating 205 (PTFE membrane) provides an extra protective barrier, effectively resisting acid and alkali corrosion and other harmful substances. Its smooth surface also makes dust removal easier and more efficient. A second reinforcing layer 206 (glass fiber), located between the second treatment layer 203 and the third treatment layer 204, enhances the bag's physical strength, ensuring it won't easily break or deform during long-term use. Fiberglass, with its high heat resistance and mechanical strength, is an ideal reinforcement material. Through the synergy of various materials, not only is the shrinkage resistance of the filter bag improved, but its filtration efficiency, durability, and ease of maintenance are also significantly enhanced. The shrinkage support rod 303 is fixed within the snap-fit seat 301 via snap-fit structures at both ends and passes through the placement shielding plates 302. These shielding plates 302 are made of flexible fabric, providing additional protection without affecting the function of the support rod. The limiting protrusion 309 on the adjusting plate 310 is inserted into the connecting hole 307. Then, by rotating the adjusting plate 310, the limiting protrusion 309 slides within the sliding limiting groove 308. When the adjusting plate 310 slides to a certain position, the limiting spring 304... The function of the limiting ball 305 is to push out when there is no external force, so that it is embedded in the limiting groove 6 on the adjusting plate 310, thereby locking the position of the adjusting plate 310 and ensuring that it will not move at will. This allows for flexible adjustment of the tension of the bag and ensures the anti-shrinkage effect. When it is necessary to adjust or replace the bag, apply appropriate pressure to retract the limiting ball 305 into the placement groove 4, and the adjusting plate 310 can be easily slid for operation. The top of one of the adjusting plates 310 is connected to four connecting brackets 5 by screws, which further enhances the connection strength between the bag and the external structure and ensures the stability of the bag during operation. The sealing rings 7 set on the inner and outer sides of the connecting plate 306 ensure good sealing at the interface, prevent dust leakage, and improve the efficiency of the overall system.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 high-efficiency shrinkage-resistant dust collector bag, characterized in that, It includes a dust collector bag body (1), the dust collector bag body (1) is provided with an anti-shrinkage component (2) inside, and adjustment components (3) are provided at both ends of the dust collector bag body (1); The anti-shrinkage component (2) includes a first reinforcing layer (201), which is disposed inside the dust collector bag body (1). A first treatment layer (202) is disposed around the first reinforcing layer (201), and the first treatment layer (202) is adapted to the first reinforcing layer (201). A second treatment layer (203) is disposed on the inner and outer walls of the first treatment layer (202).
2. The high-efficiency shrinkage-resistant dust collector bag according to claim 1, characterized in that, The outer wall of the second processing layer (203) is provided with a third processing layer (204), and the outer wall of the third processing layer (204) is provided with a protective coating (205), and the protective coating (205) is adapted to the third processing layer (204).
3. The high-efficiency shrinkage-resistant dust collector bag according to claim 2, characterized in that, A second reinforcing layer (206) is provided between the second processing layer (203) and the third processing layer (204), and the second reinforcing layer (206) is adapted to the second processing layer (203) and the third processing layer (204).
4. The high-efficiency anti-shrinkage dust collector bag according to claim 2, characterized in that, The adjustment component (3) includes multiple snap-fit seats (301), which are fixedly disposed on the outer wall of the protective coating (205). Multiple placement shields (302) are symmetrically disposed on the outer wall of the protective coating (205). Anti-shrinkage support rods (303) are snap-fitted at both ends of the snap-fit seat (301), and the anti-shrinkage support rods (303) pass through the interior of the placement shields (302).
5. The high-efficiency anti-shrinkage dust collector bag according to claim 4, characterized in that, One end of the anti-shrinkage support rod (303) is provided with a placement groove (4), and a limit spring (304) is provided inside the placement groove (4). One end of the limit spring (304) is provided with a limit ball (305). Both ends of the dust collector bag body (1) are provided with connecting plates (306), and one end of the connecting plate (306) is provided with multiple connecting holes (307).
6. The high-efficiency shrinkage-resistant dust collector bag according to claim 5, characterized in that, A sliding limiting groove (308) is provided on one side of the connecting hole (307). A limiting protrusion (309) is slidably connected inside the sliding limiting groove (308). An adjusting plate (310) is fixedly provided at the upper end of the limiting protrusion (309). Multiple connecting brackets (5) are connected to the upper end of one of the adjusting plates (310) by a screw.
7. The high-efficiency shrinkage-resistant dust collector bag according to claim 6, characterized in that, One end of the adjusting plate (310) is provided with a limiting groove (6), and the limiting ball (305) is adapted to the limiting groove (6). The inner and outer sides of the connecting plate (306) are provided with sealing rings (7).