Flumeus filter bag capable of preventing deformation
By using a double-layer filter bag structure and reinforcing rib design, the problems of deformation of fluoropolymer filter bags and low separation efficiency of single-layer filters are solved, achieving higher stability and dust separation effect, extending service life and improving gas cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TIANYIYUAN ENVIRONMENTAL ENG TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
Existing fluoropolymer filter bags are prone to deformation during use, leading to a decline in filtration and dust removal performance, a short service life, and most of them are single-layer structures, resulting in the exhaust gas still containing some dust.
It adopts a double-layer filter bag structure. The outer side of the inner filter bag is equipped with a metal ring and a positioning ring. The inner filter bag is equipped with reinforcing ribs and an anti-static layer. The stability is improved by supporting connecting rods and threaded connections. The inner and outer filter bags are coaxially arranged to enhance support and separation effect.
It improves the filter bag's resistance to deformation, extends its service life, and enhances dust separation efficiency and gas cleanliness through multi-layer separation.
Smart Images

Figure CN224167137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fluoropolymer filter bags, specifically a fluoropolymer filter bag that prevents deformation. Background Technology
[0002] Filter bags possess excellent chemical stability and heat resistance, representing the highest performance in the filter media industry and the most advanced type of commonly used filter materials, achieving high levels of filtration efficiency and precision. Fluoropolymer filter bags are highly efficient, high-temperature resistant, corrosion-resistant, acid and alkali resistant, and fold and wear-resistant composite products. Fluoropolymer is a new type of high-temperature filter media successfully developed for dry dust removal of blast furnace gas.
[0003] Existing fluoropolymer filter bags are prone to deformation during use, leading to decreased filtration and dust removal performance, short service life, and failure to meet people's needs. To address these issues, existing equipment needs to be improved. Utility Model Content
[0004] The purpose of this invention is to provide a fluoropolymer filter bag that prevents deformation, thereby solving the problem mentioned in the background art that existing fluoropolymer filter bags are prone to deformation during use, leading to a decline in filtration and dust removal performance, short service life, and failure to meet people's needs.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fluoropolymer filter bag to prevent deformation, comprising a filter bag body,
[0006] The filter bag body includes an outer filter bag and an inner filter bag, with the inner filter bag positioned inside the middle of the outer filter bag. Multiple metal rings are equidistantly arranged on the outer side of the inner filter bag, their outer sides fitting against the inner wall of the outer filter bag. An upper connecting seat and a lower connecting seat are respectively located at the upper and lower ends of the outer filter bag. A threaded sleeve is mounted on the upper end of the upper connecting seat via mounting bolts. A threaded ring is threaded into the middle of the threaded sleeve, with its lower end connected to the upper end of the inner filter bag. Multiple positioning rings are equidistantly arranged on the outer side of the outer filter bag between the upper and lower connecting seats, and these positioning rings are connected by multiple equidistantly arranged support connecting rods. The positions of the positioning rings correspond one-to-one with the positions of the metal rings.
[0007] Preferably, a gap is left between the outer filter bag and the inner filter bag, and the through hole opened between the outer filter bag and the inner filter bag is on the same axis.
[0008] Preferably, the inner filter bag includes an outer layer, an antistatic layer, reinforcing ribs, and a filter cloth, wherein the antistatic layer is provided on the inner side of the outer layer, and the reinforcing ribs are provided on the inner side of the antistatic layer, and the filter cloth is provided on the inner side of the reinforcing ribs.
[0009] Preferably, the reinforcing rib is formed by multiple metal strips wrapped together to form a mesh structure.
[0010] Preferably, a metal block is provided at the bottom of the lower end of the inner filter bag, and the outer side of the bottom of the lower end of the inner filter bag is located on the inner side of the upper end of the fixing seat. At the same time, the fixing seat is connected to the bottom of the lower connecting seat by fixing bolts.
[0011] Preferably, the fixing seat has a T-shaped structure, and the middle of the upper end of the fixing seat is engaged with the middle of the lower connecting seat. At the same time, the electromagnetic seat provided on the inner side of the middle of the upper end of the fixing seat is magnetically connected to the metal block.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the deformation-resistant fluoropolymer filter bag,
[0013] (1) In order to solve the problem that existing fluoromethylene filter bags are prone to deformation during use, resulting in decreased filtration and dust removal performance, short service life, and failure to meet people's needs, this application improves the support of the inner filter bag by setting reinforcing ribs, and at the same time sets metal ring sleeves, positioning ring sleeves and support connecting rods to make it strong in deformation resistance, further improving the stability and service life of the filter bag body during use.
[0014] (2) In order to solve the problem that most of the existing fluoromethylene filter bags are single-unit structures, and the dust-laden gas only undergoes single-layer separation treatment, resulting in the exhaust gas still containing some dust, this application sets up an outer filter bag and an inner filter bag, so that the dust is separated layer by layer from the inside to the outside during dust separation, thereby improving the dust separation effect, resulting in higher cleanliness of the exhaust gas and improving the dust filtration effect. Attached Figure Description
[0015] Figure 1 This is a frontal cross-sectional view of the present invention.
[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0017] Figure 3 This is a schematic diagram of the internal filter bag structure of this utility model;
[0018] Figure 4 This is a front view structural diagram of the present utility model.
[0019] In the diagram: 1. Outer filter bag; 2. Upper connecting seat; 3. Lower connecting seat; 4. Inner filter bag; 401. Outer layer; 402. Antistatic layer; 403. Reinforcing rib; 404. Filter cloth; 5. Metal block; 6. Fixing seat; 601. Electromagnetic seat; 7. Fixing bolt; 8. Metal ring; 9. Threaded ring; 10. Threaded sleeve seat; 11. Mounting bolt; 12. Positioning ring; 13. Support connecting rod. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 This utility model provides a technical solution: a fluoropolymer filter bag to prevent deformation, according to... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the filter bag body includes an outer filter bag 1 and an inner filter bag 4, with the inner filter bag 4 positioned inside the middle of the outer filter bag 1. A gap is left between the outer filter bag 1 and the inner filter bag 4, allowing some of the separated dust to remain within the gap, preventing dust from directly adhering to the surfaces of the outer filter bag 1 and the inner filter bag 4, thus preventing the filter bag body from becoming clogged and causing a decrease in dust handling performance. The through holes in the middle of the outer filter bag 1 and the inner filter bag 4 are on the same axis. Simultaneously, multiple metal rings 8 are equidistantly arranged on the outer side of the inner filter bag 4. The outer side is fitted to the inner wall of the outer filter bag 1. The metal ring 8 further enhances the stability of the connection between the outer filter bag 1 and the inner filter bag 4. The upper and lower ends of the outer filter bag 1 are respectively provided with an upper connecting seat 2 and a lower connecting seat 3. At the same time, a threaded sleeve 10 is installed on the upper end of the upper connecting seat 2 by a mounting bolt 11. A threaded ring 9 is threaded in the middle of the threaded sleeve 10, and the lower end of the threaded ring 9 is connected to the upper end of the inner filter bag 4. The connection between the threaded ring 9 and the threaded sleeve 10 facilitates the fixation of the upper end of the inner filter bag 4. The inner filter bag 4 has a metal block 5 at its lower bottom, and the outer side of the lower bottom of the inner filter bag 4 is located on the inner side of the upper end of the fixing seat 6. The fixing seat 6 is connected to the lower bottom of the lower connecting seat 3 by fixing bolts 7. The fixing seat 6 has a T-shaped structure, and the middle of the upper end of the fixing seat 6 is engaged with the middle of the lower connecting seat 3. At the same time, the electromagnetic seat 601 located on the inner side of the middle of the upper end of the fixing seat 6 is magnetically connected to the metal block 5. The connection between the metal block 5 and the electromagnetic seat 601 facilitates the fixation of the lower bottom of the inner filter bag 4, so that the inner filter bag 4 is in a vertical state when placed inside the outer filter bag 1. The outer filter bag 1 is located between the upper connecting seat 2 and the lower connecting seat 3, and multiple positioning rings 12 are equidistantly arranged on the outer side. The positioning rings 12 are connected by multiple equidistantly arranged support connecting rods 13. The positions of the positioning rings 12 correspond one-to-one with the positions of the metal rings 8. The positioning rings 12 and the support connecting rods 13 facilitate the support of the outer filter bag 1 and improve the stability of the outer filter bag 1 during use.
[0022] To further explain, the inner filter bag 4 includes an outer layer 401, an antistatic layer 402, reinforcing ribs 403, and a filter cloth 404. The antistatic layer 402 is located on the inner side of the outer layer 401. This antistatic layer 402 effectively dissipates or eliminates static electricity on the surface and inside of the inner filter bag 4, preventing static accumulation and discharge, and reducing damage to the inner filter bag 4 from static electricity and dust adhesion, thereby improving filtration efficiency. Furthermore, the smooth surface of the inner filter bag 4 and its resistance to dust adhesion make cleaning easier and reduce maintenance costs. The inner side of the filter bag 402 is provided with a reinforcing rib 403, which is formed by multiple metal strips wrapped together to form a mesh structure. The filter cloth 404 is provided inside the reinforcing rib 403. The reinforcing rib 403 can effectively improve the tensile, compressive and impact resistance of the inner filter bag 4, enabling it to withstand greater weight and external force, ensuring that the inner filter bag 4 can work stably under high pressure or harsh environment. At the same time, it can disperse the direct impact of external force on the inner filter bag 4, reduce the wear and tear caused by long-term stress, and thus significantly extend the service life of the inner filter bag 4.
[0023] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0024] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A fluoropolymer filter bag for preventing deformation, comprising a filter bag body, characterized in that: The filter bag body includes an outer filter bag (1) and an inner filter bag (4), with the inner filter bag (4) located inside the middle of the outer filter bag (1). Multiple metal rings (8) are equidistantly arranged on the outer side of the inner filter bag (4), and the outer sides of the metal rings (8) are fitted against the inner wall of the outer filter bag (1). An upper connecting seat (2) and a lower connecting seat (3) are respectively provided at the upper and lower ends of the outer filter bag (1). A threaded sleeve (10) is installed on the upper end of the upper connecting seat (2) via a mounting bolt (11). The threaded sleeve (10) has a threaded ring (9) connected in the middle inside, and the lower end of the threaded ring (9) is connected to the upper end of the inner filter bag (4). The outer filter bag (1) is located between the upper connecting seat (2) and the lower connecting seat (3) and has multiple positioning rings (12) arranged at equal intervals on the outer side. The positioning rings (12) are connected by multiple support connecting rods (13) arranged at equal intervals. At the same time, the position of the positioning ring (12) corresponds one-to-one with the position of the metal ring (8).
2. The fluoropolymer filter bag for preventing deformation as described in claim 1, characterized in that: A gap is left between the outer filter bag (1) and the inner filter bag (4), and the through hole opened between the outer filter bag (1) and the inner filter bag (4) is on the same axis.
3. The fluoropolymer filter bag for preventing deformation as described in claim 1, characterized in that: The inner filter bag (4) includes an outer layer (401), an antistatic layer (402), a reinforcing rib (403), and a filter cloth (404). The outer layer (401) has an antistatic layer (402) on its inner side, and the antistatic layer (402) has a reinforcing rib (403) on its inner side. The reinforcing rib (403) has a filter cloth (404) on its inner side.
4. The fluoropolymer filter bag for preventing deformation as described in claim 3, characterized in that: The reinforcing rib (403) is formed by multiple metal strips wrapped together to form a mesh structure.
5. The fluoropolymer filter bag for preventing deformation as described in claim 1, characterized in that: The inner filter bag (4) has a metal block (5) at its lower bottom, and the outer side of the lower bottom of the inner filter bag (4) is located on the inner side of the upper end of the fixing seat (6). At the same time, the fixing seat (6) is connected to the lower bottom of the lower connecting seat (3) by fixing bolts (7).
6. The fluoropolymer filter bag for preventing deformation as described in claim 5, characterized in that: The fixing seat (6) has a T-shaped structure, and the middle of the upper end of the fixing seat (6) is engaged with the middle of the lower connecting seat (3). At the same time, the electromagnetic seat (601) provided on the inner side of the middle of the upper end of the fixing seat (6) is magnetically connected to the metal block (5).