A fire-retardant PTFE needle-punched felt

Abstract

This utility model relates to the field of filter material structure technology and discloses a fire-retardant PTFE needle-punched felt, comprising: a filter channel; a fire-resistant mechanism fixedly connected to the bottom of the filter channel, the fire-resistant mechanism being used to enclose and protect the flame-retardant filter material mechanism from fire; and a flame-retardant filter material mechanism fixedly connected inside the fire-resistant mechanism, the flame-retardant filter material mechanism being used to enhance its own flame-retardant performance. This utility model, through the design of a composite flame-retardant layer, a modified flame-retardant layer, and a flame-retardant coating, can improve its own flame-retardant ability, avoiding the problem of sparks easily causing damage or combustion. Through the design of the fire-resistant mechanism, when a large number of sparks are generated, the flame-retardant filter material mechanism can be completely enclosed, achieving a fire-resistant function by isolating oxygen, preventing the flame-retardant filter material mechanism from burning and causing the danger to escalate, thereby improving the safety of this structure.

Description

Technical Field

[0001] This utility model relates to the field of filter material structure technology, specifically to a fire-retardant PTFE needle-punched felt. Background Technology

[0002] PTFE needle-punched felt is a filter material with extremely stable chemical properties. Its main component is polytetrafluoroethylene. PTFE needle-punched felt has excellent chemical stability and can maintain its performance in various harsh environments. This material is widely used in various dust collectors, especially performing well in environments below 200°C.

[0003] The existing PTFE needle-punched felt has poor fire resistance and flame retardancy. During the filtration of smoke and dust, if the filtered smoke and dust contains sparks, the temperature of the sparks will exceed 200°C, which can easily cause the PTFE needle-punched felt to decompose at high temperatures, or even cause combustion, resulting in poor safety. Utility Model Content

[0004] The purpose of this invention is to provide a fire-retardant PTFE needle-punched felt, which solves the problem of poor fire-retardant performance of existing PTFE needle-punched felt.

[0005] This utility model provides the following technical solution: a fire-retardant PTFE needle-punched felt, comprising:

[0006] Filtering channels;

[0007] A fire-resistant mechanism is fixedly connected to the bottom of the filter channel, and the fire-resistant mechanism is used to provide closed fire protection for the flame-retardant filter material mechanism.

[0008] A flame-retardant filter media mechanism is fixedly connected inside the fireproof mechanism, and the flame-retardant filter media mechanism is used to improve its own flame-retardant performance.

[0009] As a preferred embodiment of the above technical solution, the flame-retardant filter material mechanism includes a composite flame-retardant layer, a modified flame-retardant layer is provided on the top of the composite flame-retardant layer, and a flame-retardant coating is applied to the top of the modified flame-retardant layer.

[0010] Through the above technical solutions, the flame retardant ability of the composite flame retardant layer can be further improved by designing modified flame retardant layers and flame retardant coatings.

[0011] As a preferred embodiment of the above technical solution, the composite flame-retardant layer is woven from PTFE fibers and glass fibers, and the flame-retardant coating is made of antimony trioxide.

[0012] As a preferred embodiment of the above technical solution, the fireproof mechanism includes a bottom sealing plate, a raised frame fixedly installed on the top of the bottom sealing plate, a filter frame fixedly installed on the top of the raised frame, a top sealing plate fixedly installed on the top of the filter frame, and the top sealing plate fixedly installed at the bottom of the filter channel.

[0013] The above technical solution, through the positional distribution design of the bottom sealing plate, raised frame, filter frame and top sealing plate, facilitates the passage of smoke and dust through the flame-retardant filter material mechanism to complete the filtration function.

[0014] As a preferred embodiment of the above technical solution, the top of the top sealing plate is provided with a strip-shaped through groove, a rotating shaft is rotatably connected to the inner wall of the strip-shaped through groove, a barrier strip is fixedly sleeved on the outer wall of the rotating shaft, and a through hole is provided on the front side of the barrier strip.

[0015] The above technical solution, through the design of through holes, can reduce the weight and material usage of the barrier strip.

[0016] As a preferred embodiment of the above technical solution, a supporting folding member is fixedly installed on the top of the top sealing plate, an elastic rope is fixedly connected to the bottom of the supporting folding member, the bottom of the elastic rope is fixedly connected to the top of the barrier strip, a limiting block is fixedly installed on the top of the top sealing plate, and the bottom of the limiting block is movably connected to the top of the barrier strip.

[0017] The above technical solution, through the design of supporting components, elastic ropes and limiting blocks, facilitates the repositioning of the barrier plate to seal the inner cavity of the strip channel.

[0018] As a preferred embodiment of the above technical solution, a movable strip is movably inserted into the front of the filter frame, and a movable inner frame located in the inner cavity of the filter frame is fixedly installed on the back of the movable strip. The composite flame-retardant layer is fixedly connected to the inner wall of the movable inner frame. A protrusion is fixedly installed on the front of the filter frame. A connecting groove is opened on the top of the protrusion and the movable strip, and a connector is movably inserted into the inner cavity of the connecting groove.

[0019] The above technical solution, through the overall design of the filter frame, facilitates the user's disassembly and cleaning of the flame-retardant filter media mechanism.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention, through the design of a composite flame-retardant layer, a modified flame-retardant layer, and a flame-retardant coating, can enhance its flame-retardant capability and avoid the problem of sparks easily causing damage or combustion. Through the design of the fire-prevention mechanism, the flame-retardant filter material mechanism can be completely sealed when a large number of sparks are generated, achieving the fire-prevention function by isolating oxygen, thus preventing the fire-retardant filter material mechanism from burning and causing the danger to expand, thereby improving the safety of this structure. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is an exploded view of the fire-resistant mechanism of this utility model;

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 This is a schematic diagram of the barrier strip of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the filter frame of this utility model;

[0027] Figure 6 This is a partial structural schematic diagram of the flame-retardant filter material mechanism of this utility model.

[0028] In the diagram: 1. Filter channel; 2. Fireproof mechanism; 21. Bottom sealing plate; 22. Raised frame; 23. Filter frame; 231. Movable inner frame; 232. Movable strip plate; 233. Raised block; 234. Connecting groove; 235. Connector; 24. Top sealing plate; 241. Support folding piece; 242. Elastic rope; 243. Limiting block; 25. Strip groove; 251. Barrier strip plate; 252. Rotating shaft; 253. Through hole; 3. Flame-retardant filter material mechanism; 31. Composite flame-retardant layer; 32. Modified flame-retardant layer; 33. Flame-retardant coating. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] like Figures 1-6 As shown, this utility model provides a technical solution: a fire-retardant PTFE needle-punched felt, comprising:

[0031] Filter channel 1;

[0032] Fireproof mechanism 2 is fixedly connected to the bottom of filter channel 1. Fireproof mechanism 2 is used to provide fireproof protection for flame-retardant filter material mechanism 3.

[0033] The flame-retardant filter media mechanism 3 is fixedly connected inside the fireproof mechanism 2. The flame-retardant filter media mechanism 3 is used to improve its own flame-retardant performance.

[0034] As one implementation method in this embodiment, such as Figure 6As shown, the flame-retardant filter material mechanism 3 includes a composite flame-retardant layer 31, a modified flame-retardant layer 32 on top of the composite flame-retardant layer 31, and a flame-retardant coating 33 on top of the modified flame-retardant layer 32. The composite flame-retardant layer 31 is woven from PTFE fibers and glass fibers. The flame-retardant coating 33 is made of antimony trioxide. By adding glass fibers inside the PTFE fibers, its performance can be improved, enabling it to better resist fire sources, thereby enhancing the flame-retardant effect. The modified flame-retardant layer 32 is a protective layer generated on top of the composite flame-retardant layer 31 through fluorine ion radiation modification, thereby enhancing its flame-retardant effect. The antimony trioxide material inside the flame-retardant coating 33 can generate inert gas at high temperatures, thus achieving the flame-retardant function.

[0035] As one implementation method in this embodiment, such as Figure 2 , Figure 3 , Figure 4 As shown, the fireproof mechanism 2 includes a bottom sealing plate 21, a raised frame 22 fixedly installed on the top of the bottom sealing plate 21, a filter frame 23 fixedly installed on the top of the raised frame 22, a top sealing plate 24 fixedly installed on the top of the filter frame 23, and the top sealing plate 24 fixedly installed at the bottom of the filter channel 1. A strip-shaped through groove 25 is opened on the top of the top sealing plate 24, a rotating shaft 252 is rotatably connected to the inner wall of the strip-shaped through groove 25, a barrier strip 251 is fixedly sleeved on the outer wall of the rotating shaft 252, a through hole 253 is opened on the front of the barrier strip 251, a supporting folding member 241 is fixedly installed on the top of the top sealing plate 24, an elastic rope 242 is fixedly connected to the bottom of the supporting folding member 241, the bottom of the elastic rope 242 is fixedly connected to the top of the barrier strip 251, a limiting block 243 is fixedly installed on the top of the top sealing plate 24, and the bottom of the limiting block 243 is movably connected to the top of the barrier strip 251. The bottom sealing plate 21 and... The top sealing plate 24 has the same specifications. The barrier strip 251 is rotatably connected to the inner cavity of the strip groove 25 through the rotating shaft 252. When the smoke and dust move downward from the top of the filter channel 1, the thrust of the smoke and dust can push the barrier strip 251 to rotate in the inner cavity of the strip groove 25. At the same time, it will stretch the elastic rope 242, so that there is a gap between the barrier strip 251 and the top sealing plate 24 or the bottom sealing plate 21, which facilitates the passage of smoke and dust. When a large number of sparks are generated, the user controls the dust collector to stop working, and the smoke and dust will stop flowing. The initial elasticity of the elastic rope 242 can pull the barrier strip 251, so that its top is attached to the bottom of the limiting block 243, realizing the function of automatically sealing the strip groove 25 on the bottom sealing plate 21 and the top sealing plate 24. The fire prevention function is achieved by isolating oxygen, causing the sparks on the filter surface of the flame-retardant filter material mechanism 3 to be automatically extinguished, increasing safety.

[0036] As one implementation method in this embodiment, such as Figure 5As shown, a movable strip 232 is movably inserted into the front of the filter frame 23, and a movable inner frame 231 located in the inner cavity of the filter frame 23 is fixedly installed on the back of the movable strip 232. The composite flame-retardant layer 31 is fixedly connected to the inner wall of the movable inner frame 231. A protrusion 233 is fixedly installed on the front of the filter frame 23. A connecting groove 234 is opened on the top of both the protrusion 233 and the movable strip 232. A connector 235 is movably inserted into the inner cavity of the connecting groove 234. If it is necessary to disassemble and clean the filter surface of the flame-retardant filter material mechanism 3, the connector 235 is pulled out from the top of the protrusion 233. Then the movable strip 232 can be pulled away from the filter frame 23, causing the movable inner frame 231 to be pulled out from the inner cavity of the filter frame 23. The filter surface of the flame-retardant filter material mechanism 3 can then be cleaned. After cleaning, the movable inner frame 231 can be reset and installed.

[0037] Working principle: When in use, this structure is installed inside the dust collector, so that the smoke and dust enter from the top of the filter channel 1 and exit from the bottom of the bottom sealing plate 21. During the process, the smoke and dust are filtered by the flame-retardant filter material mechanism 3. When a large number of sparks are generated, the user controls the dust collector to stop working, and the smoke and dust stop flowing. The initial elasticity of the elastic rope 242 pulls the barrier strip 251, so that its top is attached to the bottom of the limiting block 243, realizing the function of automatically sealing the strip groove 25 on the bottom sealing plate 21 and the top sealing plate 24, and achieving the fire prevention function by isolating oxygen.

[0038] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A fire-retardant PTFE needle-punched felt, characterized in that, include: Filter channel (1); Fireproof mechanism (2), which is fixedly connected to the bottom of the filter channel (1), is used to provide fireproof protection for the flame-retardant filter material mechanism (3); Flame-retardant filter material mechanism (3) is fixedly connected inside the fireproof mechanism (2) and is used to improve its own flame-retardant performance.

2. The fire-retardant PTFE needle-punched felt according to claim 1, characterized in that: The flame-retardant filter material mechanism (3) includes a composite flame-retardant layer (31), a modified flame-retardant layer (32) is provided on the top of the composite flame-retardant layer (31), and a flame-retardant coating (33) is applied to the top of the modified flame-retardant layer (32).

3. The fire-retardant PTFE needle-punched felt according to claim 2, characterized in that: The composite flame retardant layer (31) is woven from PTFE fiber and glass fiber, and the flame retardant coating (33) is made of antimony trioxide.

4. The fire-retardant PTFE needle-punched felt according to claim 2, characterized in that: The fireproof mechanism (2) includes a bottom sealing plate (21), a raised frame (22) is fixedly installed on the top of the bottom sealing plate (21), a filter frame (23) is fixedly installed on the top of the raised frame (22), a top sealing plate (24) is fixedly installed on the top of the filter frame (23), and the top sealing plate (24) is fixedly installed at the bottom of the filter channel (1).

5. The fire-retardant PTFE needle-punched felt according to claim 4, characterized in that: The top of the top sealing plate (24) is provided with a strip-shaped through groove (25), and a rotating shaft (252) is rotatably connected to the inner wall of the strip-shaped through groove (25). A barrier strip (251) is fixedly sleeved on the outer wall of the rotating shaft (252), and a through hole (253) is provided on the front side of the barrier strip (251).

6. The fire-retardant PTFE needle-punched felt according to claim 5, characterized in that: The top of the top sealing plate (24) is fixedly installed with a support folding member (241), and the bottom of the support folding member (241) is fixedly connected with an elastic rope (242). The bottom of the elastic rope (242) is fixedly connected to the top of the barrier strip (251). The top of the top sealing plate (24) is fixedly installed with a limiting block (243), and the bottom of the limiting block (243) is movably connected to the top of the barrier strip (251).

7. The fire-retardant PTFE needle-punched felt according to claim 4, characterized in that: The filter frame (23) has a movable strip plate (232) movably inserted into its front side. A movable inner frame (231) located in the inner cavity of the filter frame (23) is fixedly installed on the back side of the movable strip plate (232). The composite flame retardant layer (31) is fixedly connected to the inner wall of the movable inner frame (231). A protrusion (233) is fixedly installed on the front side of the filter frame (23). A connecting groove (234) is opened on the top of the protrusion (233) and the movable strip plate (232). A connector (235) is movably inserted into the inner cavity of the connecting groove (234).

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