Special ptfe membrane filter bag for chemical plant

Abstract

The utility model relates to the technical field of filtration, in particular to a special ptfe membrane filter bag for a chemical plant. Comprising a filter cylinder, a filter bag protective cover, a filter bag body and a reinforcing and fixing mechanism, the reinforcing and fixing mechanism comprises two first mounting discs and two second mounting discs, when the filter bag body is mounted, the filter bag body is placed in the filter bag protective cover, and after the end of the filter bag body is attached to the inner side wall of a first fixing ring arranged on the first mounting discs, the filter bag body is fixed to the filter cylinder. The second mounting disc is mounted on the surface, far away from the filter bag protective cover, of the first mounting disc by using a screw, so that a second fixing ring arranged on the second mounting disc is attached to the inner side wall of the end part of the filter bag body, and the end part of the filter bag body is mounted in the corresponding mounting cavity. The filter bag body is more firmly mounted in the filter bag protective cover, so that the risk that the filter bag body falls off after the filter bag body is used for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a PTFE coated filter bag special for chemical plants. Background Art

[0002] In order to ensure the sealing performance, the existing filter bags are usually produced in an integrated manner. Although the integrated filter bags have good sealing performance, most of the particles are difficult to clean during use, which brings inconvenience to subsequent use.

[0003] To solve the above problems, the existing public patent (CN215782189U) discloses a PTFE coated filter bag specially used in chemical plants, including a filter bag protective cover, the outer wall of the filter bag protective cover includes multiple connecting ribs, through holes are provided between the multiple connecting ribs, a filter bag is connected to the inside of the filter bag protective cover, the filter bag is rectangular when unfolded, a sticky strip is connected to the left wall of the filter bag when unfolded, a sealing strip is connected to the right wall of the filter bag when unfolded, the sticky strip is the same size as the sealing strip, a filter cartridge is connected to the outside of the filter bag protective cover, two connecting shafts are provided between the filter bag protective cover and the filter cartridge, the filter bag protective cover is connected to the filter cartridge through the two connecting shafts, the upper and lower ends of the filter cartridge are connected to connecting heads, and connecting holes are provided on the left and right sides of the two connecting heads, and the sticky strip and the sealing strip cooperate to facilitate the cleaning of the filter bag when a large amount of particulate pollutants appear inside after a period of use, without affecting the subsequent normal use of the filter bag.

[0004] However, the filter bag in the existing PTFE-coated filter bag for chemical plants is installed in a relatively simple structure in the filter bag protective cover, resulting in the risk of the filter bag falling off from the filter bag protective cover after long-term use. Utility Model Content

[0005] The utility model aims to provide a PTFE coated filter bag for chemical plants, aiming to solve the technical problem that the filter bag in the existing PTFE coated filter bag for chemical plants is installed in a relatively simple structure in the filter bag protective cover, resulting in the risk of the filter bag falling off from the filter bag protective cover after long-term use.

[0006] To achieve the above purpose, the utility model provides a PTFE coated filter bag for chemical plants, comprising a filter cartridge, a filter bag protective cover, a filter bag body and a reinforcing fixing mechanism, wherein both ends of the filter cartridge are provided with connectors, the filter cartridge is provided with the filter bag protective cover, the filter bag body is provided with the filter bag protective cover, the filter bag body is provided with the filter bag protective cover, the filter bag body is rectangular after unfolding, the left wall of the filter bag body is connected with an adhesive strip after unfolding, the right wall of the filter bag body is connected with a sealing strip after unfolding, and the adhesive strip is adapted to the sealing strip;

[0007] The reinforced fixing mechanism includes two first mounting plates and two second mounting plates, the first mounting plates are fixedly arranged at the upper and lower ends of the filter bag protective cover, a first fixing ring is arranged on the inner wall of each of the first mounting plates, the second mounting plate is fixed to the side of each of the first mounting plates away from the filter bag protective cover by screws, a second fixing ring is arranged on the inner wall of each of the second mounting plates, an installation cavity is arranged between each of the second fixing rings and the corresponding first fixing ring, and the end of the filter bag body is located inside the corresponding installation cavity.

[0008] Among them, each first mounting plate is provided with a plurality of positioning grooves on a side away from the filter bag protective cover, and each second mounting plate is provided with a plurality of positioning blocks on a side close to the corresponding first mounting plate, and each positioning block corresponds to one of the positioning grooves.

[0009] Among them, each first fixing ring is provided with a first anti-slip layer on a side away from the filter bag protective cover, and each second fixing ring is provided with a second anti-slip layer on a side close to the filter bag protective cover, and the first anti-slip layer and the second anti-slip layer are both in contact with the end of the filter bag body.

[0010] Wherein, a side of each second mounting plate away from the corresponding first mounting plate is provided with a plurality of concealed grooves, and screws for fixing the second mounting plate are installed inside the corresponding concealed grooves.

[0011] Among them, the PTFE coated filter bag specially used for chemical plants also includes multiple protective covers, each of the dark grooves is provided with the protective cover, and the protective cover is arranged on the outside of the corresponding screws for fixing the second mounting plate.

[0012] Wherein, a first thread is arranged on the inner side wall of each of the concealed grooves, and a second thread is arranged on the outer side wall of each of the protective covers, and the first thread is matched with the second thread.

[0013] Wherein, anti-slip grooves are arranged on the outer side wall of one end of each protective cover away from the corresponding dark groove.

[0014] Wherein, a plurality of connecting ribs are arranged on the outer side wall of the filter bag protective cover, and through holes are arranged between the plurality of connecting ribs.

[0015] The utility model discloses a PTFE coated filter bag specially used in chemical plants. When installing the filter bag body, the filter bag body is placed inside the filter bag protective cover so that the end of the filter bag body fits with the inner side wall of the first fixing ring arranged on the first mounting plate. Then, the second mounting plate is installed on the side of the first mounting plate away from the filter bag protective cover by using screws so that the second fixing ring arranged on the second mounting plate fits with the inner side wall of the end of the filter bag body, thereby making the end of the filter bag body installed in the corresponding mounting cavity. With the above structure, the filter bag body can be more firmly installed inside the filter bag protective cover through the arrangement of the reinforcing fixing mechanism, thereby avoiding the risk of the filter bag body falling off after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the disassembled structure of a PTFE coated filter bag dedicated to a chemical plant according to the first embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the partially disassembled structure of the filter bag protective cover in the first embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the split structure of the second mounting plate and the first mounting plate in the first embodiment of the utility model.

[0020] Figure 4 It is a schematic diagram of the unfolded structure of the filter bag body in the first embodiment of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the second mounting plate in the second embodiment of the utility model.

[0022] 101-filter cartridge, 102-filter bag protective cover, 103-filter bag body, 104-first mounting plate, 105-second mounting plate, 106-connector, 107-adhesive strip, 108-sealing strip, 109-connecting rib, 110-through hole, 111-first fixing ring, 112-second fixing ring, 113-installation cavity, 114-positioning groove, 115-positioning block, 116-first anti-slip layer, 117-second anti-slip layer, 118-blind groove, 201-protective cover, 202-first thread, 203-second thread, 204-anti-slip pattern. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] First embodiment:

[0025] See also Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the disassembled structure of the PTFE coated filter bag for chemical plants in the first embodiment. Figure 2 This is a schematic diagram of the partially disassembled structure of the filter bag protective cover in the first embodiment. Figure 3 is a schematic diagram of the split structure of the second installation disk and the first installation disk in the first embodiment, Figure 4 Schematic diagram of the unfolded structure of the filter bag body in the first embodiment.

[0026] The utility model provides a PTFE coated filter bag for chemical plants: comprising a filter cartridge 101, a filter bag protective cover 102, a filter bag body 103 and a reinforcing fixing mechanism, wherein the reinforcing fixing mechanism comprises two first mounting plates 104 and two second mounting plates 105. The above-mentioned solution solves the problem that the filter bag in the existing PTFE coated filter bag for chemical plants is installed in the filter bag protective cover 102 in a relatively simple structure, resulting in the risk of the filter bag falling off from the filter bag protective cover 102 after long-term use. It can be understood that the above-mentioned solution can be used in the structure of the PTFE coated filter bag for chemical plants.

[0027] According to the present specific implementation manner, connectors 106 are provided at both ends of the filter cartridge 101, the filter bag protective cover 102 is provided inside the filter cartridge 101, the filter bag body 103 is provided inside the filter bag protective cover 102, the filter bag body 103 is rectangular when unfolded, an adhesive strip 107 is connected to the left wall of the unfolded filter bag body 103, a sealing strip 108 is connected to the right wall of the unfolded filter bag body 103, the adhesive strip 107 is matched with the sealing strip 108, a PTFE filter membrane is connected to the inner wall of the filter bag body 103, when the filtration efficiency of the PTFE coated filter bag is reduced, it is because the filter bag body 103 has been used for too long and there is a lot of particulate dust inside, only needs After taking out the filter bag protective cover 102 from the filter cartridge 101 and the filter bag body 103 from the filter bag protective cover 102, tear off the adhesive strip 107 and unfold the filter bag body 103 for deep cleaning, which is convenient and quick. The filter bag body 103 can be used normally after cleaning, which saves the use cost and does not affect the filtering efficiency. A plurality of connecting ribs 109 are arranged on the outer side wall of the filter bag protective cover 102, and through holes 110 are arranged between the plurality of connecting ribs 109. The arrangement of the through holes 110 can ensure that the normal filtering of the filter bag body 103 is not affected, and the plurality of connecting ribs 109 can ensure that the overall structure of the filter bag body 103 is not easily deformed.

[0028] The first mounting plates 104 are fixedly provided at both upper and lower ends of the filter bag protective cover 102, a first fixing ring 111 is provided on the inner side wall of each of the first mounting plates 104, a second mounting plate 105 is fixedly provided on the side of each of the first mounting plates 104 away from the filter bag protective cover 102 by screws, a second fixing ring 112 is provided on the inner side wall of each of the second mounting plates 105, an installation cavity 113 is provided between each of the second fixing rings 112 and the corresponding first fixing ring 111, an end of the filter bag body 103 is located inside the corresponding installation cavity 113, when installing the filter bag body 103, the filter bag body 103 is placed inside the filter bag protective cover 102, so that the filter bag After the end of the main body 103 is fitted with the inner wall of the first fixing ring 111 set on the first mounting plate 104, the second mounting plate 105 is installed on the side of the first mounting plate 104 away from the filter bag protective cover 102 by using screws, so that the second fixing ring 112 set on the second mounting plate 105 is fitted with the inner wall of the end of the filter bag main body 103, so that the end of the filter bag main body 103 is installed in the corresponding mounting cavity 113. With the above structure, through the setting of the reinforced fixing mechanism, the filter bag main body 103 is more firmly installed inside the filter bag protective cover 102, thereby avoiding the risk of the filter bag main body 103 falling off after long-term use.

[0029] Secondly, each of the first mounting plates 104 is provided with a plurality of positioning grooves 114 on a side away from the filter bag protective cover 102, and each of the second mounting plates 105 is provided with a plurality of positioning blocks 115 on a side close to the corresponding first mounting plate 104, and each of the positioning blocks 115 corresponds to one of the positioning grooves 114, respectively. Through the setting of the positioning grooves 114 and the positioning blocks 115, it is convenient to fix the second mounting plate 105 on the side of the first mounting plate 104 away from the filter bag dust cover.

[0030] At the same time, each first fixing ring 111 is provided with a first anti-slip layer 116 on a side away from the filter bag protective cover 102, and each second fixing ring 112 is provided with a second anti-slip layer 117 on a side close to the filter bag protective cover 102. The first anti-slip layer 116 and the second anti-slip layer 117 are both in contact with the end of the filter bag body 103. Through the setting of the first anti-slip layer 116 and the second anti-slip layer 117, when the end of the filter bag body 103 is installed inside the installation cavity 113, the structure is more stable.

[0031] In addition, each second mounting plate 105 is provided with a plurality of concealed grooves 118 on one side away from the corresponding first mounting plate 104, and the screws for fixing the second mounting plate 105 are installed inside the corresponding concealed grooves 118. Through the setting of the concealed grooves 118, when the screws are fixed on the second mounting plate 105, the overall structure is more beautiful.

[0032] When using a PTFE coated filter bag dedicated to a chemical plant of the present embodiment, when the filtration efficiency of the PTFE coated filter bag decreases, it is because the filter bag body 103 has been used for too long and there is a lot of particle dust inside. It is only necessary to take out the filter bag protective cover 102 from the filter cartridge 101, and after taking out the filter bag body 103 from the filter bag protective cover 102, tear off the corresponding adhesive strip 107, and unfold the filter bag body 103 for deep cleaning, which is convenient and quick. The cleaned filter bag body 103 can be used normally, saving the use cost and not affecting the filtration efficiency. When installing the filter bag body 103, place the filter bag body 103 inside the filter bag protective cover 102 so that the filter bag body 10 After the end of the filter bag 103 is fitted with the inner side wall of the first fixing ring 111 provided on the first mounting plate 104, the second mounting plate 105 is installed on the side of the first mounting plate 104 away from the filter bag protective cover 102 by means of screws, so that the second fixing ring 112 provided on the second mounting plate 105 is fitted with the inner side wall of the end of the filter bag body 103, so that the end of the filter bag body 103 is installed in the corresponding mounting cavity 113. With the above structure, the filter bag body 103 is more firmly installed inside the filter bag protective cover 102 through the provision of the strengthening fixing mechanism, thereby avoiding the risk of the filter bag body 103 falling off after long-term use.

[0033] Second embodiment:

[0034] Based on the first embodiment, please refer to Figure 5 , Figure 5 Schematic diagram of the structure of the second mounting plate in the second embodiment.

[0035] The utility model provides a PTFE coated filter bag specially used in chemical plants, which also includes a plurality of protective covers 201.

[0036] According to this specific embodiment, the protective cover 201 is provided at each of the concealed grooves 118, and the protective cover 201 is arranged on the outside of the corresponding screws for fixing the second mounting plate 105. Through the setting of the protective cover 201, the screws for fixing the second mounting plate 105 are protected to prevent the external environment from affecting the service life of the screws.

[0037] Among them, a first thread 202 is arranged on the inner wall of each of the dark grooves 118, and a second thread 203 is arranged on the outer wall of each of the protective covers 201. The first thread 202 is adapted to the second thread 203. By setting the first thread 202 and the second thread 203, the protective cover 201 is installed in the dark groove 118, so that the dark groove 118 is arranged outside the screw.

[0038] Secondly, an anti-slip pattern 204 is arranged on the outer side wall of one end of each protective cover 201 away from the corresponding dark groove 118. The anti-slip pattern 204 makes it more convenient to operate when rotating the protective cover 201.

[0039] When using a PTFE coated filter bag specially used in a chemical plant according to the present embodiment, the protective cover 201 is installed at the dark groove 118 by setting the first thread 202 and the second thread 203, so that the dark groove 118 is set outside the screw. Through the setting of the protective cover 201, the screws used to fix the second mounting plate 105 are protected to prevent the external environment from affecting the service life of the screws.

[0040] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A PTFE coated filter bag for chemical plants, comprising a filter cartridge, a filter bag protective cover and a filter bag body, both ends of the filter cartridge are provided with connectors, the filter cartridge is provided with the filter bag protective cover, the filter bag body is provided with the filter bag protective cover, the filter bag body is unfolded into a rectangular shape, the left wall of the unfolded filter bag body is connected with an adhesive strip, the right wall of the unfolded filter bag body is connected with a sealing strip, the adhesive strip is adapted to the sealing strip, and the filter bag body is characterized in that: It also includes strengthening the fixing mechanism; The reinforced fixing mechanism includes two first mounting plates and two second mounting plates, the first mounting plates are fixedly arranged at the upper and lower ends of the filter bag protective cover, a first fixing ring is arranged on the inner wall of each of the first mounting plates, the second mounting plate is fixed to the side of each of the first mounting plates away from the filter bag protective cover by screws, a second fixing ring is arranged on the inner wall of each of the second mounting plates, an installation cavity is arranged between each of the second fixing rings and the corresponding first fixing ring, and the end of the filter bag body is located inside the corresponding installation cavity.

2. The PTFE coated filter bag for chemical plants as claimed in claim 1, characterized in that: A side of each first mounting plate away from the filter bag protective cover is provided with a plurality of positioning grooves, and a side of each second mounting plate close to the corresponding first mounting plate is provided with a plurality of positioning blocks, and each positioning block corresponds to one of the positioning grooves.

3. The PTFE coated filter bag for chemical plants as claimed in claim 1, characterized in that: A first anti-slip layer is provided on one side of each first fixing ring away from the filter bag protective cover, and a second anti-slip layer is provided on one side of each second fixing ring close to the filter bag protective cover. Both the first anti-slip layer and the second anti-slip layer are in contact with the end of the filter bag body.

4. The PTFE coated filter bag for chemical plants as claimed in claim 3, characterized in that: A plurality of dark grooves are provided on a side of each second mounting plate away from the corresponding first mounting plate, and screws for fixing the second mounting plate are installed inside the corresponding dark grooves.

5. The PTFE coated filter bag for chemical plants as claimed in claim 4, characterized in that: The PTFE coated filter bag for chemical plants also includes a plurality of protective covers, each of the dark grooves is provided with the protective cover, and the protective cover is arranged on the outside of the corresponding screws for fixing the second mounting plate.

6. The PTFE coated filter bag for chemical plants as claimed in claim 5, characterized in that: A first thread is arranged on the inner side wall of each dark groove, and a second thread is arranged on the outer side wall of each protective cover, and the first thread is matched with the second thread.

7. The PTFE coated filter bag for chemical plants as claimed in claim 6, characterized in that: Anti-slip grooves are arranged on the outer side wall of one end of each protective cover away from the corresponding dark groove.

8. The PTFE coated filter bag for chemical plants as claimed in claim 1, characterized in that: A plurality of connecting ribs are arranged on the outer side wall of the filter bag protective cover, and through holes are arranged between the plurality of connecting ribs.

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