A high-temperature resistant filter with large air volume and no partition

Abstract

The present invention relates to the field of filter technology, and specifically to a high-temperature resistant filter with large air volume and no partition, comprising a first stainless steel outer frame, a second stainless steel outer frame, a through hole, a filter structure, a third stainless steel outer frame and a fourth stainless steel outer frame, wherein the upper end of the filter structure is fixedly connected to the second stainless steel outer frame, the upper end of the second stainless steel outer frame is fixedly connected to the first stainless steel outer frame, the lower end of the filter structure is fixedly connected to the third stainless steel outer frame, the lower end of the third stainless steel outer frame is fixedly connected to the fourth stainless steel outer frame, and the second stainless steel outer frame and the third stainless steel outer frame are both provided with through holes, which are used for fixed connection of the upper and lower ends of the filter structure, wherein the filter structure is used for air filtering. Through the setting of the structure, the purpose of high-temperature resistant filtering is conveniently carried out.

Description

Technical Field

[0001] The invention relates to the technical field of filters, in particular to a high-temperature resistant filter with large air volume and no partition. Background Art

[0002] High-volume, non-partitioned, high-temperature filters can perform air filtration. As people's requirements for food and drug safety are increasing, high-temperature filters are more widely used. In high-temperature sterilization, drying and other processes, high-temperature filters are indispensable.

[0003] According to Chinese patent publication number CN216204116U, a partitionless high-temperature resistant and high-efficiency filter is disclosed, including a stainless steel double-flange outer frame and a stainless steel flangeless inner frame, the stainless steel flangeless inner frame is arranged inside the stainless steel double-flange outer frame, and a high-temperature resistant glue filling layer is filled between the stainless steel flangeless inner frame and the stainless steel double-flange outer frame; a partitionless high-temperature resistant and high-efficiency filter element made of glass fiber is arranged in the stainless steel flangeless inner frame, and the top and bottom of the partitionless high-temperature resistant and high-efficiency filter element and the top and bottom of the stainless steel flangeless inner frame are both provided with glass fiber mesh and stainless steel face net.

[0004] However, the existing large-volume, partition-free, high-temperature resistant filters and the above-mentioned cases mostly use a built-in fixed origami structure when in use, and the origami height cannot be adjusted. There is a problem of poor processing effect when the air volume is large, and air filtration cannot be performed more quickly. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a high-temperature resistant filter with large air volume and no partition.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a large air volume, partition-free, high-temperature resistant filter, comprising a first stainless steel outer frame, a second stainless steel outer frame, a through hole, a filter structure, a third stainless steel outer frame and a fourth stainless steel outer frame, the upper end of the filter structure is fixedly connected to the second stainless steel outer frame, the upper end of the second stainless steel outer frame is fixedly connected to the first stainless steel outer frame, the lower end of the filter structure is fixedly connected to the third stainless steel outer frame, and the lower end of the third stainless steel outer frame is fixedly connected to the fourth stainless steel outer frame, the second stainless steel outer frame and the third stainless steel outer frame are both provided with through holes, the through holes are used for fixed connection of the upper and lower ends of the filter structure, wherein the filter structure is used for air filtration processing.

[0007] Specifically, the filter structure includes a first wing plate, a protective inner seat, a filter component and a second wing plate. The side end of the protective inner seat is fixedly connected with the first wing plate and the second wing plate, and the first wing plate and the second wing plate are arranged in parallel. One side of the first wing plate and the second wing plate are fixed to the protective inner seat, and the center of the protective inner seat is clamped with a filter component.

[0008] Specifically, the filtering component includes an auxiliary baffle, a filter mesh, a filtering mechanism and a channel opening, the filtering mechanism is fixedly connected to the auxiliary baffle, the filter mesh is fixedly connected to the auxiliary baffle, and the channel opening is provided on the side of the auxiliary baffle away from the filter mesh.

[0009] Specifically, the filtering mechanism includes a through groove, a first sealing bottom plate, a second sealing bottom plate, a docking support plate, a sealing side plate, a high temperature resistant filter element, a third sealing bottom plate and an adjusting control part, the side end of the second sealing bottom plate is fixedly connected with the first sealing bottom plate, the second sealing bottom plate is provided with a through groove, and the second sealing bottom plate is connected with one end of the high temperature resistant filter element through the through groove, the lower end of the first sealing bottom plate is fixedly connected with the docking support plate, the lower end of the docking support plate is fixedly connected with the sealing side plate, the side end of the sealing side plate is fixedly provided with a high temperature resistant filter element, the high temperature resistant filter element is controlled by the adjusting control part to change the folding height of the high temperature resistant filter element, and the bottom of the sealing side plate is fixed to the third sealing bottom plate for sealing.

[0010] Specifically, the adjustment and control part includes a regulating frame, a metal connecting frame, a limit end seat, a swing module, a control motor, a displacement block, a screw rod, a limit frame, a displacement guide frame and a hinged connecting frame. The regulating frame is fixedly connected to the metal connecting frame, and the side end of the regulating frame is hingedly provided with a displacement guide frame through a hinged connecting frame. The side end of the displacement guide frame is fixedly connected to the displacement block, and the displacement block is threadedly connected to the screw rod, and the threads on the screw rod are symmetrically and reversely arranged.

[0011] Specifically, the screw rod is driven by a control motor, and the control motor is fixed on a limit frame, and the limit frame limits the displacement block, so that the displacement block slides within the limit limit of the limit frame.

[0012] Specifically, the lower end of the hinged connecting frame is hinged to the swing module, and the swing module is hinged to the limit end seat. The metal connecting frame is fixed on the high temperature resistant filter element, and the longitudinal depth of the high temperature resistant filter element can be adjusted by tensioning.

[0013] Specifically, the limiting end seat is fixedly connected to the side end of the sealing side plate, the limiting frame is also fixedly connected to the upper end of the sealing side plate, and the upper end of the first sealing bottom plate is fixedly connected to the side of the auxiliary baffle.

[0014] Specifically, the swing module includes a first connecting end block frame, a center ring and a second connecting end block frame. The first connecting end block frame is provided on the upper end side of the center ring, and the second connecting end block frame is provided on the lower end side of the center ring, and four regulating frames are connected through four swing modules.

[0015] Specifically, the center ring is hinged to the limit end seat, and the first connecting end block frame is connected to the regulating frame and the displacement guide frame respectively through the hinged connecting frame, so as to control the tension adjustment of the high temperature resistant filter element through the metal connecting frame.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention can fix the connection of the filter structure by setting the first stainless steel outer frame, the second stainless steel outer frame, the third stainless steel outer frame and the fourth stainless steel outer frame. The central filter component is fixed by the first wing plate, the protective inner seat and the second wing plate on the filter structure. The filter component is filtered by the filter mechanism. The filter mechanism is connected with the auxiliary baffle through the channel port. The gas reaches the lower end of the auxiliary baffle through the channel port and is then discharged through the filter mesh. Thus, gas drainage can be performed, and the amount of gas centrally processed by the filter mechanism is reduced. Auxiliary processing work is performed through the filter mesh, so that it is suitable for use in large air volume conditions.

[0018] Second, the present invention can drive the high temperature resistant filter element to move and adjust by setting the adjustment control part, which is connected to the high temperature resistant filter element through a metal connecting frame. During adjustment, the control motor controls the rotation of the lead screw, so that the lead screw drives the displacement block to move. The movement of the displacement block drives the articulated connecting frame to cooperate with the adjustment through the displacement guide frame, and then drives the control frame to move. At the same time, the connection of the lower end swing module can drive the control frame in the diagonal position to cooperate with the follow-up movement, thereby realizing the folding height adjustment of the high temperature resistant filter element and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from a side perspective;

[0022] Figure 3 It is a split diagram of the main body in the present invention;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the filter structure of the present invention from a front perspective;

[0024] Figure 5 This is a disassembled diagram of the filter structure in the present invention;

[0025] Figure 6 This is a disassembled diagram of the filter component in the present invention;

[0026] Figure 7 This is a disassembled diagram of the filtering mechanism in the present invention;

[0027] Figure 8 It is a schematic diagram of the front viewing angle stereoscopic structure of the adjustment control part in the present invention;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the swing module in the present invention from the front perspective.

[0029] In the figure: 1-first stainless steel outer frame, 2-second stainless steel outer frame, 3-through hole, 4-filter structure, 5-third stainless steel outer frame, 6-fourth stainless steel outer frame, 7-first wing plate, 8-protective inner seat, 9-filter component, 10-second wing plate, 11-auxiliary baffle, 12-filter mesh, 13-filter mechanism, 14-channel opening, 15-through groove, 16-first sealing bottom plate, 17-second sealing bottom plate, 18-docking support plate, 19-sealing side plate, 20-high temperature resistant filter element, 21-third sealing bottom plate, 22-adjusting control part, 23-regulating frame, 24-metal connecting frame, 25-limiting end seat, 26-swing module, 27-control motor, 28-displacement block, 29-screw, 30-limiting frame, 31-displacement guide frame, 32-hinged connecting frame, 33-first connecting end block frame, 34-center collar, 35-second connecting end block frame. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0031] The present invention is further described below in conjunction with the accompanying drawings.

[0032] Example

[0033] like Figure 1-9 As shown, a large air volume, partition-free, high temperature resistant filter of the present invention comprises a first stainless steel outer frame 1, a second stainless steel outer frame 2, a through hole 3, a filter structure 4, a third stainless steel outer frame 5 and a fourth stainless steel outer frame 6, the upper end of the filter structure 4 is fixedly connected to the second stainless steel outer frame 2, the upper end of the second stainless steel outer frame 2 is fixedly connected to the first stainless steel outer frame 1, the lower end of the filter structure 4 is fixedly connected to the third stainless steel outer frame 5, the lower end of the third stainless steel outer frame 5 is fixedly connected to the fourth stainless steel outer frame 6, the second stainless steel outer frame 2 and the third stainless steel outer frame 5 are both provided with a through hole 3, the through hole 3 is used for fixed connection of the upper and lower ends of the filter structure 4, wherein the filter structure 4 is used for air filtration treatment.

[0034] The filter structure 4 includes a first wing plate 7, a protective inner seat 8, a filter component 9 and a second wing plate 10. The side ends of the protective inner seat 8 are fixedly connected with the first wing plate 7 and the second wing plate 10, and the first wing plate 7 and the second wing plate 10 are arranged in parallel. One side of the first wing plate 7 and the second wing plate 10 are fixed to the protective inner seat 8, and the filter component 9 is clamped in the center of the protective inner seat 8.

[0035] The filter component 9 includes an auxiliary baffle 11, a filter mesh 12, a filter mechanism 13 and a channel opening 14. The auxiliary baffle 11 is fixedly connected to the filter mechanism 13, and the filter mesh 12 is fixedly connected to the auxiliary baffle 11. The side of the auxiliary baffle 11 facing away from the filter mesh 12 is provided with a channel opening 14. Through the arrangement of the first stainless steel outer frame 1, the second stainless steel outer frame 2, the third stainless steel outer frame 5, and the fourth stainless steel outer frame 6, the filter structure 4 can be fixedly connected. The central filter component 9 is fixed on the filter structure 4 by the first wing plate 7, the protective inner seat 8, and the second wing plate 10. The filter component 9 is filtered by the filter mechanism 13. The filter mechanism 13 is connected with the auxiliary baffle 11 through the channel opening 14. The gas reaches the lower end of the auxiliary baffle 11 through the channel opening 14, and then is discharged through the filter mesh 12, so that gas drainage can be performed, the amount of gas centrally processed by the filter mechanism 13 is reduced, and auxiliary processing work is performed through the filter mesh 12, so that it is suitable for use in a large air volume state.

[0036] The filter mechanism 13 includes a through groove 15, a first sealing bottom plate 16, a second sealing bottom plate 17, a docking support plate 18, a sealing side plate 19, a high temperature resistant filter element 20, a third sealing bottom plate 21 and an adjustment control part 22. The side end of the second sealing bottom plate 17 is fixedly connected to the first sealing bottom plate 16, the second sealing bottom plate 17 is provided with a through groove 15, and the second sealing bottom plate 17 is connected to one end of the high temperature resistant filter element 20 through the through groove 15. The lower end of the first sealing bottom plate 16 is fixedly connected to the docking support plate 18, and the docking support plate 18 is fixedly connected to the lower end of the first sealing bottom plate 16. The lower end of the guard plate 18 is fixedly connected with a sealing side plate 19, and the side end of the sealing side plate 19 is fixedly provided with a high temperature resistant filter element 20, and the high temperature resistant filter element 20 is controlled by the adjustment control part 22, so as to change the folding height of the high temperature resistant filter element 20, and the bottom of the sealing side plate 19 is fixed to the third sealing bottom plate 21, so as to perform sealing treatment, and the filter structure 4 is top-mounted through the first stainless steel outer frame 1 and the second stainless steel outer frame 2, and a through hole 3 is opened on the second stainless steel outer frame 2 for convenient docking and fixing, and the filter structure 4 The lower end of the filter element 1 is fixedly connected with the third stainless steel outer frame 5 and the fourth stainless steel outer frame 6, and the third stainless steel outer frame 5 is also provided with a through hole 3, which is convenient for the bottom positioning of the third stainless steel outer frame 5. At the same time, the first wing plate 7 and the second wing plate 10 are fixed to the second stainless steel outer frame 2 and the third stainless steel outer frame 5 to protect the center of the inner seat 8 for fixed installation of the filter component 9. The airflow is introduced through the rear end of the filter mechanism 13 and filtered through the center of the filter mechanism 13. At the same time, the excess gas is introduced into the lower end of the auxiliary baffle 11 through the channel port 14, and then guided through the filter mesh 12 to perform diversion filtering. Most of the gas is conducted and filtered through the high temperature resistant filter element 20, and the support plate 18 and the sealing side plate 19 are connected to the side for sealing. At the same time, the upper end of the support plate 18 is fixed to the first sealing bottom plate 16, and the lower end of the sealing side plate 19 is fixed to the third sealing bottom plate 21 to achieve integrated fixation. The setting of the adjustment control part 22 can drive the high temperature resistant filter element 20 to perform depth adjustment, thereby expanding the contact surface and improving the filtering efficiency.

[0037] The regulating and controlling part 22 comprises a regulating and controlling frame 23, a metal connecting frame 24, a limit end seat 25, a swing module 26, a control motor 27, a displacement block 28, a screw rod 29, a limit frame 30, a displacement guide frame 31 and a hinged connecting frame 32. The regulating and controlling frame 23 is fixedly connected with the metal connecting frame 24. The side end of the regulating and controlling frame 23 is hingedly provided with a displacement guide frame 31 through the hinged connecting frame 32. The side end of the displacement guide frame 31 is fixedly connected with a displacement block 28. The displacement block 28 is threadedly connected with the screw rod 29, and the thread on the screw rod 29 is symmetrically and reversely arranged. By means of the design of the regulating and controlling part 22, The adjustment control part 22 is connected to the high temperature resistant filter element 20 through a metal connecting frame 24, which can drive the high temperature resistant filter element 20 to move and adjust. During adjustment, the control motor 27 at this time controls the screw rod 29 to rotate, so that the screw rod 29 drives the displacement block 28 to move. The movement of the displacement block 28 drives the hinged connecting frame 32 to cooperate with the adjustment through the displacement guide frame 31, and then drives the control frame 23 to move. At the same time, the connection of the lower end swing module 26 can drive the control frame 23 in the diagonal position to cooperate with the follow-up movement, thereby realizing the folding height adjustment of the high temperature resistant filter element 20 and improving the processing efficiency.

[0038] The screw rod 29 is driven by the control motor 27 , and the control motor 27 is fixed on the limit frame 30 . Meanwhile, the limit frame 30 limits the displacement block 28 , so that the displacement block 28 slides within the limit frame 30 .

[0039] The lower end of the hinged connecting frame 32 is hinged to the swing module 26, and the swing module 26 is hinged to the limit end seat 25. The metal connecting frame 24 is fixed on the high temperature resistant filter element 20, and the longitudinal depth of the high temperature resistant filter element 20 can be adjusted by tensioning.

[0040] The limit end seat 25 is fixedly connected to the side end of the sealing side plate 19, the limit frame 30 is also fixedly connected to the upper end of the sealing side plate 19, and the upper end of the first sealing bottom plate 16 is fixedly connected to the side of the auxiliary baffle 11. When a large air volume appears, the control motor 27 works at this time, driving the screw rod 29 to rotate, and the screw rod 29 drives the displacement block 28 to slide and adjust on the limit frame 30. At this time, the displacement guide frame 31 changes its position, and at the same time drives the control frame 23 to change its position through the hinged connecting frame 32. When the position of the control frame 23 changes, it can be lifted and pulled. The metal connecting frame 24 drives the connected high temperature resistant filter element 20 to follow the stretching and expansion. At the same time, the hinged connecting frame 32 is also connected to the limit end seat 25 through the swing module 26. When the hinged connecting frame 32 moves, the swing module 26 can drive the regulating frame 23 at the diagonal position of the lower end to adjust. At this time, the first connecting end block frame 33 moves, so that the center ring 34 rotates at the center of the limit end seat 25, and the second connecting end block frame 35 at the bottom drives the regulating frame 23 at the lower end to adjust, thereby expanding the internal depth.

[0041] The swing module 26 includes a first connecting end block frame 33, a center ring 34 and a second connecting end block frame 35. The first connecting end block frame 33 is provided on one side of the upper end of the center ring 34, and the second connecting end block frame 35 is provided on one side of the lower end of the center ring 34. The four regulating frames 23 are connected through four swing modules 26.

[0042] The center ring 34 is hinged to the limit end seat 25 , and the first connecting end block frame 33 is connected to the regulating frame 23 and the displacement guide frame 31 respectively through the hinged connecting frame 32 , so that the tension adjustment of the high temperature resistant filter element 20 is controlled through the metal connecting frame 24 .

[0043] Working principle: When in use, the user installs the filter structure 4 on the top through the first stainless steel outer frame 1 and the second stainless steel outer frame 2, and the second stainless steel outer frame 2 is provided with a through hole 3 for convenient docking and fixing. The lower end of the filter structure 4 is fixedly connected with the third stainless steel outer frame 5 and the fourth stainless steel outer frame 6, and the third stainless steel outer frame 5 is also provided with a through hole 3 for convenient bottom positioning of the third stainless steel outer frame 5. At the same time, the first wing plate 7 and the second wing plate 10 are fixed to the second stainless steel outer frame 2 and the third stainless steel outer frame 5, and the center of the protective inner seat 8 is used for fixed installation of the filter component 9. The airflow is introduced through the rear end of the filter mechanism 13 and filtered through the center of the filter mechanism 13. At the same time, the excess gas is introduced into the lower end of the auxiliary baffle 11 through the channel port 14, and then drained through the filter mesh 12, so that diversion filtering can be performed. Most of the gas is conducted and filtered through the high temperature resistant filter element 20, and the docking support plate 18 and the sealing side plate 19 are used for side sealing. At the same time, the upper end of the docking support plate 18 is fixed to the first sealing bottom plate 16, and the lower end of the sealing side plate 19 is fixed to the first sealing bottom plate 16. The third sealing bottom plate 21 is fixed to achieve an integrated fixation. The setting of the adjustment control part 22 can drive the high temperature resistant filter element 20 to adjust the depth, thereby expanding the contact surface and improving the filtering efficiency. When a large air volume appears, the control motor 27 works at this time to drive the screw rod 29 to rotate, and the screw rod 29 drives the displacement block 28 to slide and adjust on the limit frame 30. At this time, the displacement guide frame 31 changes its position, and at the same time drives the control frame 23 to change its position through the hinged connecting frame 32. When the position of the control frame 23 changes, the metal connecting frame 2 can be lifted and pulled. 4, so that the metal connecting frame 24 drives the connected high temperature resistant filter element 20 to follow the stretching and expansion, and at the same time, the hinged connecting frame 32 is also connected to the limit end seat 25 through the swing module 26. When the hinged connecting frame 32 moves, the swing module 26 can drive the regulating frame 23 at the diagonal position of the lower end to adjust. At this time, the first connecting end block frame 33 moves, so that the center ring 34 rotates at the center of the limit end seat 25, and the second connecting end block frame 35 at the bottom drives the regulating frame 23 at the lower end to adjust, so as to expand the internal depth and complete the work.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature filter with large air volume and no partition, characterized in that: The invention comprises a first stainless steel outer frame (1), a second stainless steel outer frame (2), a through hole (3), a filter structure (4), a third stainless steel outer frame (5) and a fourth stainless steel outer frame (6); the upper end of the filter structure (4) is fixedly connected to the second stainless steel outer frame (2); the upper end of the second stainless steel outer frame (2) is fixedly connected to the first stainless steel outer frame (1); the lower end of the filter structure (4) is fixedly connected to the third stainless steel outer frame (5); the lower end of the third stainless steel outer frame (5) is fixedly connected to the fourth stainless steel outer frame (6); the second stainless steel outer frame (2) and the third stainless steel outer frame (5) are both provided with a through hole (3); the through hole (3) is used for fixed connection of the upper and lower ends of the filter structure (4); wherein the filter structure (4) is used for air filtering; The filter structure (4) comprises a first wing plate (7), a protective inner seat (8), a filter component (9) and a second wing plate (10); the side ends of the protective inner seat (8) are fixedly connected to the first wing plate (7) and the second wing plate (10); the first wing plate (7) and the second wing plate (10) are arranged in parallel; one side of the first wing plate (7) and the second wing plate (10) are both fixed to the protective inner seat (8); and the filter component (9) is clamped at the center of the protective inner seat (8); The filtering component (9) comprises an auxiliary baffle (11), a filter mesh (12), a filtering mechanism (13) and a passage opening (14); the filtering mechanism (13) is fixedly connected to the auxiliary baffle (11); the filtering mesh (12) is fixedly connected to the auxiliary baffle (11); and a side of the auxiliary baffle (11) facing away from the filter mesh (12) is provided with a passage opening (14); The filtering mechanism (13) comprises a through groove (15), a first sealing bottom plate (16), a second sealing bottom plate (17), a docking support plate (18), a sealing side plate (19), a high temperature resistant filter element (20), a third sealing bottom plate (21) and an adjustment control part (22); the side end of the second sealing bottom plate (17) is fixedly connected to the first sealing bottom plate (16); the second sealing bottom plate (17) is provided with a through groove (15); and the second sealing bottom plate (17) is connected to the high temperature resistant filter element via the through groove (15). The first sealing bottom plate (16) is connected to one end of the second sealing bottom plate (20), the lower end of the first sealing bottom plate (16) is fixedly connected to a docking support plate (18), the lower end of the docking support plate (18) is fixedly connected to a sealing side plate (19), the side end of the sealing side plate (19) is fixedly provided with a high-temperature resistant filter element (20), the high-temperature resistant filter element (20) is controlled by an adjustment control part (22), thereby changing the folding height of the high-temperature resistant filter element (20), and the bottom of the sealing side plate (19) is fixed to the third sealing bottom plate (21), thereby performing a sealing process; The regulating and controlling part (22) comprises a regulating frame (23), a metal connecting frame (24), a limiting end seat (25), a swing module (26), a control motor (27), a displacement block (28), a screw rod (29), a limiting frame (30), a displacement guide frame (31) and a hinged connecting frame (32); the regulating and controlling frame (23) is fixedly connected with the metal connecting frame (24); the side end of the regulating and controlling frame (23) is hingedly provided with a displacement guide frame (31) through the hinged connecting frame (32); the side end of the displacement guide frame (31) is fixedly connected with a displacement block (28); the displacement block (28) is threadedly connected to the screw rod (29), and the thread on the screw rod (29) is symmetrically and reversely arranged; The screw rod (29) is driven by a control motor (27), and the control motor (27) is fixed on a limit frame (30), and the limit frame (30) limits the displacement block (28), so that the displacement block (28) slides within the limit position of the limit frame (30); The lower end of the hinged connecting frame (32) is hingedly connected to the swing module (26), and the swing module (26) is hingedly connected to the limit end seat (25). The metal connecting frame (24) is fixed on the high temperature resistant filter element (20), and the longitudinal depth of the high temperature resistant filter element (20) can be adjusted by tensioning. The limiting end seat (25) is fixedly connected to the side end of the sealing side plate (19), the limiting frame (30) is also fixedly connected to the upper end of the sealing side plate (19), and the upper end of the first sealing bottom plate (16) is fixedly connected to the side of the auxiliary baffle (11); The swing module (26) comprises a first connection end block frame (33), a center collar (34) and a second connection end block frame (35); the first connection end block frame (33) is provided on one side of the upper end of the center collar (34); the second connection end block frame (35) is provided on one side of the lower end of the center collar (34); and four regulating frames (23) are connected through four swing modules (26); The central sleeve ring (34) is hingedly connected to the limit end seat (25), and the first connecting end block frame (33) is respectively connected to the regulating frame (23) and the displacement guide frame (31) through the hinged connecting frame (32), so that the tension adjustment of the high temperature resistant filter element (20) is controlled through the metal connecting frame (24).

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