High-temperature-resistant filter bag with PTFE (Polytetrafluoroethylene) base cloth

Abstract

The utility model discloses a high-temperature resistant filter bag with PTFE base cloth, which comprises a base, a placing assembly is arranged on the base, the placing assembly comprises a fixing rod, four positioning rings, a filter bag body, a fixing ring, a hoop and a connecting plate, the fixing rod surrounds the top end of the base, the positioning rings are connected to the fixing rod, and the connecting plate is connected with the fixing ring. The filter bag body is placed on the inner side of the positioning ring, the fixing ring is installed at the top of the fixing rod, the hoop is clamped to the upper end of the fixing ring, the connecting plate is detachably connected to the top end of the hoop, and a fixing assembly is arranged between the connecting plate and the hoop and comprises a fixing sleeve, an inserting and pulling pipe and a top plate. The fixing sleeve is fixedly installed on the hoop, the inserting-pulling pipe penetrates through the connecting plate and is connected to the inner side of the fixing sleeve in a sliding mode, and the top plate is fixedly installed at the top of the inserting-pulling pipe, so that the technical problem that the filter bag body mentioned in the background technology is prone to distortion and deformation in the using process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature resistant filter bags, and more specifically, it relates to a high-temperature resistant filter bag with a PTFE base fabric. Background Art

[0002] In the existing technology, the gases generated during industrial production are often at a relatively high temperature. Especially in industries such as chemical engineering, smelting, and heat treatment, high-temperature gases not only pose a test to the materials of the filter bags, but may also accelerate the aging of the filter bags and reduce their service life. During the emission process of industrial gases, the flow velocity is relatively fast, and this high-speed air flow may cause erosion to the filter bags, resulting in deformation or damage to the filter bags. This physical damage will further shorten the service life of the filter bags and may also affect the filtration effect.

[0003] When installing the filter bags, it is crucial to ensure the stability and correct placement of the filter bags. However, in the existing technology, there is a lack of an effective and rapid fixing mechanism, which may cause the filter bags to shift or become loose during use, affecting the filtration effect and equipment safety.

[0004] Traditional dust removal filter bags are usually sewn with dust removal filter cloth with a low aperture ratio. This kind of cloth with a low aperture ratio limits the passing speed of gases, resulting in a low filtration air velocity and thus reducing the dust removal efficiency. This not only affects the production efficiency, but may also lead to non-compliance of dust emissions, posing potential risks to the environment and human health. Summary of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the problems existing in the prior art, the utility model provides a high-temperature resistant filter bag with a PTFE base fabric to solve the technical problem that the filter bag body is prone to distortion and deformation during use as mentioned in the background art.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solution: A high-temperature resistant filter bag with a PTFE base fabric, comprising a base, on which a placement assembly is provided. The placement assembly includes a fixing rod, a positioning ring, a filter bag body, a fixing ring, a hoop and a connecting plate. The fixing rod surrounds the top of the base, the positioning ring is connected to the fixing rod, there are four positioning rings, the filter bag body is placed inside the positioning rings, the fixing ring is installed on the top of the fixing rod, the hoop is clamped on the upper end of the fixing ring, the connecting plate is detachably connected to the top of the hoop, and a fixing assembly is provided between the connecting plate and the hoop. The fixing assembly includes a fixing sleeve, a plug-in tube and a top plate. The fixing sleeve is fixedly installed on the hoop, the plug-in tube passes through the connecting plate and is slidably connected inside the fixing sleeve, the top plate is fixedly installed on the top of the plug-in tube, and the top plate abuts against the connecting plate. A layer assembly is arranged inside the filter bag body.

[0009] The present utility model is further arranged such that through holes are formed in the connecting plate, and the through holes are adapted to the plug-in tubes. Through the cooperation of various components, the process of putting the plug-in tubes in is completed.

[0010] The present utility model is further arranged such that a bag mouth is formed inside the bag body, and the bag mouth unfolds at the fixing ring. Through the cooperation of various components, the process of fixing the bag mouth is completed.

[0011] The present utility model is further arranged such that elastic pieces are spirally provided on the plug-in tubes, there are multiple elastic pieces, and springs are connected between the elastic pieces and the plug-in tubes. Through the cooperation of various components, the process of clamping the plug-in tubes is completed.

[0012] The present utility model is further arranged such that threaded grooves are formed inside the fixing sleeves, and the threaded grooves are adapted to the elastic pieces. Through the cooperation of various components, the process of taking out the plug-in tubes is completed.

[0013] The present utility model is further arranged such that the layer assembly includes a base fabric layer, a microporous film layer and a viscose fiber layer. The base fabric layer is arranged inside the filter bag body, the microporous film layer is connected to the inside of the base fabric layer, and the viscose fiber layer is arranged inside the microporous film layer. Through the cooperation of various components, the process of protecting the inside of the filter membrane body is completed.

[0014] The present utility model is further arranged such that a twistless cotton layer is provided inside the viscose fiber layer, and a nylon layer is provided inside the twistless cotton layer. Through the cooperation of various components, the process of fireproofing the inside of the filter membrane body is completed.

[0015] The present utility model is further arranged such that a graphite layer is provided inside the nylon layer, and a PTFE layer is provided inside the graphite layer. Through the cooperation of various components, the process of protecting the inside of the filter membrane body is completed.

[0016] (III) Advantageous Effects

[0017] Compared with the prior art, the present utility model provides a high-temperature resistant filter bag with a PTFE base fabric, having the following advantageous effects:

[0018] 1. The base provides a stable support platform, and the placement assembly ensures the correct position and fixation of the filter bag. The placement assembly includes a fixing rod, a positioning ring, a filter bag body, a fixing ring, a hoop, and a connecting plate. These components work together to fix the filter bag body in place through the positioning ring and the fixing rod, and are further stabilized through the hoop and the connecting plate.

[0019] 2. The fixing components, such as a fixing sleeve, a plug-in tube, and a top plate, work together to fix the filter bag body in place through the positioning ring and the fixing rod. The fixing components achieve the quick fixing and disassembly of the filter bag through the plug-in tube, the fixing sleeve, and the top plate.

[0020] 3. The layer components include a base fabric layer, a microporous film layer, and a viscose fiber layer, as well as internal protective layers, such as a non-twisted cotton layer, a nylon layer, and a graphite layer, and a PTFE layer in the innermost layer. The combination of these layers provides the mechanical strength, filtration efficiency, and high-temperature resistance of the filter bag. The base fabric layer provides structural support, the microporous film layer and the viscose fiber layer enhance the filtration ability, while the non-twisted cotton layer, the nylon layer, the graphite layer, and the PTFE layer provide chemical stability and high-temperature protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of a high-temperature resistant filter bag with a PTFE base fabric in the present utility model;

[0022] Figure 2 is a schematic diagram of the structure of the placement assembly in the present utility model;

[0023] Figure 3 is an enlarged schematic diagram of A in the present utility model;

[0024] Figure 4 is a schematic diagram of the structure of the fixing assembly in the present utility model;

[0025] Figure 5 is a partial schematic diagram of the structure of the fixing assembly in the present utility model;

[0026] Figure 6 is a cross-sectional schematic diagram of the fixing sleeve in the present utility model.

[0027] In the figure: 1. Base; 2. Fixed rod; 3. Positioning ring; 4. Filter bag body; 5. Fixed ring; 6. Hoop; 7. Connecting plate; 8. Fixed sleeve; 9. Plug-and-play tube; 10. Top plate; 11. Through hole; 12. Bag mouth; 13. Elastic sheet; 14. Spring; 15. Threaded groove; 16. Base fabric layer; 17. Microporous film layer; 18. Viscose fiber layer; 19. Twisted-free cotton layer; 20. Nylon layer; 21. Graphite layer; 22. PTFE layer. Detailed implementation mode

[0028] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail the present invention.

[0029] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise stated, the orientations such as "upper and lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for ease of understanding and description, "left and right" are usually in the left and right shown in the drawings; "inside and outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms do not limit the present invention.

[0031] Please refer to Figures 1-6 , a high-temperature resistant filter bag with a PTFE base fabric, including a base 1, characterized in that: a placement component is arranged on the base 1, and the placement component includes a fixed rod 2, a positioning ring 3, a filter bag body 4, a fixed ring 5, a hoop 6 and a connecting plate 7. The fixed rod 2 surrounds the top of the base 1, the positioning ring 3 is connected to the fixed rod 2, there are four positioning rings 3, the filter bag body 4 is placed inside the positioning ring 3, the fixed ring 5 is installed on the top of the fixed rod 2, the hoop 6 is clamped on the upper end of the fixed ring 5, the connecting plate 7 is detachably connected to the top of the hoop 6, and a fixing component is arranged between the connecting plate 7 and the hoop 6. The fixing component includes a fixed sleeve 8, a plug-and-play tube 9 and a top plate 10. The fixed sleeve 8 is fixedly installed on the hoop 6, the plug-and-play tube 9 passes through the connecting plate 7 and is slidably connected to the inside of the fixed sleeve 8, the top plate 10 is fixedly installed on the top of the plug-and-play tube 9, and the top plate 10 abuts against the connecting plate 7. A layer component is arranged inside the filter bag body 4.

[0032] A through hole 11 is formed in the connecting plate 7, and the through hole 11 is adapted to the plug-and-play tube 9.

[0033] A bag mouth 12 is formed inside the bag body, and the bag mouth 12 unfolds at the fixed ring 5.

[0034] The plug-in tube 9 is spirally provided with elastic pieces 13. There are multiple elastic pieces 13, and a spring 14 is connected between the elastic pieces 13 and the plug-in tube 9.

[0035] The inner side of the fixing sleeve 8 is provided with a threaded groove 15, and the threaded groove 15 is adapted to the elastic piece 13.

[0036] In this embodiment, during the process of placing the filter bag body 4, the filter bag body 4 is manually placed along the fixing ring 5, and its bottom is placed at the bottom end of the base 1, and its end is fitted with the positioning ring 3 and the fixing rod 2, and the mouth 12 of the filter bag body 4 is unfolded on the positioning ring 3. Then, the hoop 6 is manually placed on the fixing ring 5, and then the connecting plate 7 is placed on the hoop 6. Then, in order to fix the filter bag body 4 perfectly, the plug-in tube is manually inserted along the through hole 11 on the connecting plate 7 and enters the fixing sleeve 8 on the hoop 6. During the process of inserting the plug-in tube 9, the elastic piece 13 continuously abuts against the threaded groove 15 on the inner side of the fixing sleeve 8, and the plug-in tube 9 continuously moves downward along the inner side of the fixing sleeve 8. During its movement, the spring 14 is compressed back and forth, and then the spring 14 expands. Finally, the elastic piece 13 is clamped at the threaded groove 15 on the inner side of the fixing sleeve 8, completing the fixing process between the plug-in tube 9 and the fixing sleeve 8, and the top plate 10 on the plug-in tube 9 abuts against the through hole 11 on the connecting plate 7, thereby fixing it. When the filter bag body 4 needs to be taken, the plug-in tube 9 is manually rotated, so that the elastic piece 13 continuously rotates along the threaded groove 15 on the fixing sleeve 8, and during its rotation, the plug-in tube 9 continuously moves upward. Finally, the plug-in tube 9 is taken out of the fixing sleeve 8, and then the connecting plate 7 and the hoop 6 are removed, so that the filter bag body 4 can be removed.

[0037] Please refer to Figure 3 , as an embodiment of a high-temperature resistant filter bag with a PTFE base fabric for the layer assembly: The layer assembly includes a base fabric layer 16, a microporous film layer 17 and a viscose fiber layer 18. The base fabric layer 16 is arranged inside the filter bag body 4, the microporous film layer 17 is connected to the inside of the base fabric layer 16, and the viscose fiber layer 18 is arranged inside the microporous film layer 17.

[0038] An untwisted cotton layer 19 is arranged inside the viscose fiber layer 18, and a nylon layer 20 is arranged inside the untwisted cotton layer 19.

[0039] A graphite layer 21 is arranged inside the nylon layer 20, and a PTFE layer 22 is arranged inside the graphite layer 21.

[0040] More specifically, a base fabric layer 16 is provided on one side inside the filter bag body 4 to protect the filter bag body 4. The microporous film layer 17 provided inside the base fabric layer 16 is used to achieve the purpose of ventilation for the filter bag body 4. Then, the adhesive fiber layer 18 is used to complete the adhesion process between the microporous film layer 17 and the twistless cotton layer 19. Then, the nylon layer 20 and the graphite layer 21 provided inside the twistless cotton layer 19 are used to protect the inside of the filter bag body 4. Finally, the PTFE layer 22 is used to achieve the purpose of high-temperature resistance for the inside of the filter bag body 4.

[0041] In summary, when the overall equipment is in use or operation: during the process of placing the filter bag body 4, the filter bag body 4 is manually placed along the fixed ring 5, and its bottom is placed at the bottom end of the base 1, and its end is fitted with the positioning ring 3 and the fixed rod 2, and the mouth 12 of the filter bag body 4 is unfolded on the positioning ring 3. Then, the hoop 6 is manually placed on the fixed ring 5, and then the connecting plate 7 is placed on the hoop 6. Then, in order to fix the filter bag body 4 perfectly, the plugging tube is manually inserted along the through hole 11 on the connecting plate 7 and enters the fixed sleeve 8 on the hoop 6. During the process of inserting the plugging tube 9, the elastic piece 13 continuously abuts against the thread groove 15 inside the fixed sleeve 8, and the plugging tube 9 continuously moves downward along the inside of the fixed sleeve 8. During its movement, the spring 14 is continuously compressed back and forth, and then the spring 14 expands. Finally, the elastic piece 13 is clamped at the thread groove 15 inside the fixed sleeve 8 to complete the fixing process between the plugging tube 9 and the fixed sleeve 8, and the top plate 10 on the plugging tube 9 abuts against the through hole 11 on the connecting plate 7, so as to fix it. When the filter bag body 4 needs to be taken out, the plugging tube 9 is manually rotated, so that the elastic piece 13 continuously rotates along the thread groove 15 on the fixed sleeve 8, and during its rotation, the plugging tube 9 continuously moves upward. Finally, the plugging tube 9 is taken out from the fixed sleeve 8, and then the connecting plate 7 and the hoop 6 are removed, so that the filter bag body 4 can be taken out.

[0042] A base fabric layer 16 is provided on one side inside the filter bag body 4 to protect the filter bag body 4. The microporous film layer 17 provided inside the base fabric layer 16 is used to achieve the purpose of ventilation for the filter bag body 4. Then, the adhesive fiber layer 18 is used to complete the adhesion process between the microporous film layer 17 and the twistless cotton layer 19. Then, the nylon layer 20 and the graphite layer 21 provided inside the twistless cotton layer 19 are used to protect the inside of the filter bag body 4. Finally, the PTFE layer 22 is used to achieve the purpose of high-temperature resistance for the inside of the filter bag body 4.

[0043] Among all the solutions mentioned above, for those involving the connection between two components, welding, the connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those involving fixed connection mentioned above, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be subject to various changes, modifications, substitutions, and variations without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant filter bag with a PTFE base fabric, comprising a base (1), characterized in that: A placing component is arranged on the base (1). The placing component includes a fixing rod (2), a positioning ring (3), a filter bag body (4), a fixing ring (5), a hoop (6) and a connecting plate (7). The fixing rod (2) surrounds the top end of the base (1). The positioning ring (3) is connected to the fixing rod (2). There are four positioning rings (3). The filter bag body (4) is placed inside the positioning ring (3). The fixing ring (5) is installed at the top of the fixing rod (2). The hoop (6) is clamped at the upper end of the fixing ring (5). The connecting plate (7) is detachably connected to the top end of the hoop (6). A fixing component is arranged between the connecting plate (7) and the hoop (6). The fixing component includes a fixing sleeve (8), a plugging tube (9) and a top plate (10). The fixing sleeve (8) is fixedly installed on the hoop (6). The plugging tube (9) penetrates through the connecting plate (7) and is slidably connected inside the fixing sleeve (8). The top plate (10) is fixedly installed at the top of the plugging tube (9). The top plate (10) abuts against the connecting plate (7). A layer number component is arranged inside the filter bag body (4).

2. The high-temperature resistant filter bag with a PTFE base fabric according to claim 1 is characterized in that: A through hole (11) is formed in the connecting plate (7), and the through hole (11) is adapted to the plugging tube (9).

3. The high-temperature resistant filter bag with a PTFE base fabric according to claim 2, characterized in that: A bag mouth (12) is formed inside the bag body, and the bag mouth (12) is unfolded at the fixing ring (5).

4. The high-temperature resistant filter bag with a PTFE base fabric according to claim 3, characterized in that: Elastic pieces (13) are spirally arranged on the plugging tube (9). There are a plurality of elastic pieces (13). A spring (14) is arranged between the elastic pieces (13) and the plugging tube (9).

5. The high-temperature resistant filter bag with a PTFE base fabric according to claim 4, characterized in that: A threaded groove (15) is formed inside the fixing sleeve (8), and the threaded groove (15) is adapted to the elastic piece (13).

6. A high-temperature resistant filter bag with a PTFE base fabric according to any one of claims 1-5, characterized in that: The layer number component includes a base cloth layer (16), a microporous film layer (17) and a viscose fiber layer (18). The base cloth layer (16) is arranged inside the filter bag body (4). The microporous film layer (17) is connected to the inside of the base cloth layer (16). The viscose fiber layer (18) is arranged inside the microporous film layer (17).

7. The high-temperature resistant filter bag with a PTFE base fabric according to claim 6, characterized in that: An untwisted cotton layer (19) is arranged inside the viscose fiber layer (18), and a nylon layer (20) is arranged inside the untwisted cotton layer (19).

8. A high-temperature resistant filter bag with a PTFE base fabric according to claim 7, characterized in that: A graphite layer (21) is arranged inside the nylon layer (20), and a PTFE layer (22) is arranged inside the graphite layer (21).

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