High-temperature-resistant high-efficiency filter

Abstract

The present application relates to the field of gas purification, specifically to a high-temperature-resistant high-efficiency filter, comprising a bath, a servo slide rail is fixedly installed at the front end of the bath, a moving frame is fixedly installed at the upper end of the slide table of the servo slide rail, an air inlet pipe is fixedly installed through the rear end of the moving frame, a groove is formed at the front edge of the outer surface of the air inlet pipe, a cross air guide disc is coaxially arranged at the groove of the air inlet pipe, the lower end of the cross air guide disc is communicated with the outlet of the air inlet pipe, a collection filter shell is fixedly installed at each end of the cross air guide disc, and the lower end of the cross air guide disc and the collection filter shell below are immersed in the liquid inside the bath. The present application is a special equipment for atmospheric pollution prevention and environmental protection, which effectively improves the filtering efficiency, meets the purification needs of advanced environmental protection industry, and ensures that the collected dust and impurities in the collection filter shell are smoothly removed.

Description

Technical Field

[0001] This invention relates to the field of gas purification, specifically a high-temperature resistant high-efficiency filter. Background Technology

[0002] Liquid bath filters are specialized environmental protection equipment for air pollution control. The equipment uses liquid as the separation medium, removing dispersed dust particles from dust-laden gas through gas-liquid contact. Simultaneously, the liquid cools the gas, giving the liquid bath filter excellent high-temperature resistance.

[0003] However, in existing liquid bath filters, once the dust-laden gas enters the liquid, dust impurities continuously contaminate the liquid. To ensure separation efficiency, the equipment must be shut down periodically to replace the liquid and clean the accumulated dust before resuming operation. The rapid rate of dust contamination of the liquid leads to short downtime maintenance cycles. Frequent shutdowns interrupting the purification process result in low overall filtration efficiency, failing to meet the purification requirements of advanced environmental protection industries. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a high-temperature resistant high-efficiency filter.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature resistant high-efficiency filter, comprising a bath, a servo slide rail fixedly installed at the front end of the bath, a movable frame fixedly installed at the upper end of the slide of the servo slide rail, an air inlet pipe fixedly installed through the rear end of the movable frame, a groove formed at the front edge of the outer surface of the air inlet pipe, a cross-shaped air guide plate coaxially fitted at the groove of the air inlet pipe, the lower end of the cross-shaped air guide plate communicating with the outlet of the air inlet pipe, collection filter shells fixedly installed at all four ends of the cross-shaped air guide plate, the lower end of the cross-shaped air guide plate and the collection filter shell below it being immersed in the liquid inside the bath, a shell replacement component provided at the front end of the movable frame, the shell replacement component being connected to the cross-shaped air guide plate, and a spray washing component provided on one side of the bath.

[0006] Preferably, a lower ring and an upper ring are coaxially arranged on the outer side of the air intake pipe. The upper ring is close to the end of the lower ring. The lower ring is fixed to the movable frame. The upper ring is elastically connected to the movable frame. The collection filter shell located at the lower end and one side end of the cross air guide plate is respectively pressed against the lower ring and the upper ring.

[0007] Preferably, a T-shaped connector is fixedly installed on the side of the upper ring body, and two guide posts are symmetrically fixedly installed on the rear end of the T-shaped connector. The movable frame is slidably installed on the outer surface of the guide posts. A second return spring is fixedly installed between the movable frame and the opposite surface of the T-shaped connector. The guide post passes through the interior of the second return spring. Rubber rings are provided on the front and rear end faces of the groove of the air intake pipe. The two rubber rings are respectively attached to the front and rear end faces of the cross air guide plate. A protrusion is fixedly installed between the ends of the two guide posts. A vertical wheel is provided on the upper end of the protrusion. An opening frame is provided on the side of the vertical wheel. The opening frame is fixed to the bath.

[0008] Preferably, the spraying component includes a water pump fixedly installed on one side of the bath tub, the inlet end of the water pump being fixedly connected to the bath tub, the outlet end of the water pump being fixedly connected to a steel pipe, a spray head being installed at the end of the steel pipe, the nozzle of the spray head being inclined, and a filter disc being fixedly installed at the upper edge of the bath tub, the filter disc being located below the spray head.

[0009] Preferably, the shell replacement component includes a fixed base fixedly installed at the front end of the movable frame, a rotating ring rotatably installed at one end of the fixed base, a pawl elastically installed on the rotating ring, a connecting frame fixedly installed at the front end of the cross air guide plate, a wheel axle fixedly installed in the middle of the connecting frame, the wheel axle being coaxially arranged with the cross air guide plate, a ratchet being coaxially fixedly installed at the end of the wheel axle, and the pawl engaging with the ratchet.

[0010] Preferably, a shell-changing rack is slidably mounted on the other end of the fixed base, a shell-changing frame is provided on the side of the shell-changing rack, the shell-changing frame is fixed to the bath, a ring shaft is coaxially fixedly mounted inside the rotating ring, and a shell-changing gear is coaxially fixedly mounted on the end of the ring shaft, the shell-changing gear meshing with the shell-changing rack.

[0011] Preferably, a shaft is rotatably mounted at the front end of the swivel ring, the shaft extends through the rear end of the swivel ring, the pawl is fixedly mounted at the rear end of the shaft, and a torsion spring is provided between the front end of the shaft and the swivel ring.

[0012] Preferably, a guide rod is fixedly installed on the side of the fixed base, the shell-changing rack is slidably installed on the outer surface of the guide rod, and a first return spring is wound around the outside of the guide rod. One end of the first return spring is fixed to the fixed base, and the other end of the first return spring is fixed to the shell-changing rack.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, as a special equipment for air pollution control and environmental protection, involves dust-laden gas entering the liquid in a bath through the inlet pipe and the lower port of the cross-shaped air guide plate. The liquid removes the dispersed dust particles from the gas. Dust particles intercepted by the liquid are collected by the lower collection filter to prevent widespread diffusion within the liquid. Simultaneously, driven by the shell-changing mechanism, the cross-shaped air guide plate rotates 90 degrees, allowing the clean collection filter on the plate to be moved downwards to continue gas purification and collection. Meanwhile, the dust particles originally located below are removed. The collection filter housing is rotated out of the liquid and kept horizontal. When the servo slide rail drives the air inlet pipe and cross guide plate to the spraying component, the spraying component will extend into the collection filter housing originally located below and into the end of the cross guide plate connected to the collection filter housing to wash out the collected dust and impurities, keeping the collection filter housing clean. This cycle is repeated to collect and remove dust and impurities from the gas purification in real time, thereby extending the cycle of liquid contamination in the bath, reducing downtime, improving filtration efficiency, and meeting the purification needs of advanced environmental protection industries.

[0014] 2. When the servo slide rail moves the air inlet pipe and cross air guide plate close to the steel pipe, the vertical wheel on the protrusion will contact the opening frame and roll along the inclined end of the opening frame, allowing the protrusion to move backward, which in turn drives the upper ring body on the T-shaped connecting block to move backward, so that the upper ring body disengages from the end of the collection filter shell, allowing the collection filter shell to be opened, so that the steel pipe can be smoothly inserted into the collection filter shell for rinsing, thereby ensuring that the dust and impurities collected in the collection filter shell are successfully removed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the movable frame of the present invention; Figure 4 This is a schematic diagram of the end of the steel pipe of the present invention; Figure 5 This is a schematic diagram of the cross-shaped air guide plate of the present invention; Figure 6 This is a schematic diagram of the cross-shaped air guide plate of the present invention from another perspective; Figure 7 For the present invention Figure 6 Enlarged view of A in the middle; Figure 8 This is a cross-sectional view showing the connection between the cross-shaped air guide plate and the air intake pipe of the present invention. Figure 9 This is a view of the intake pipe of the present invention; Figure 10 This is a view of the cross-shaped air guide plate of the present invention.

[0016] The components represented by each number in the attached diagram are listed below: 1. Bath tub; 2. Servo slide rail; 3. Filter disc; 4. Opening frame; 5. Steel pipe; 6. Cross air guide plate; 7. Collection filter housing; 8. Moving frame; 9. Water pump; 10. Fixed base; 11. Guide rod; 12. No. 1 return spring; 13. Shell changing rack; 14. Rotary ring; 15. Shell changing frame; 16. Air inlet pipe; 17. Rubber ring; 18. No. 1 nozzle; 19. Upper ring body; 20. T-shaped connecting block; 21. Lower ring body; 22. Connecting frame; 23. Ring shaft; 24. Shell changing gear; 25. Guide post; 26. No. 2 return spring; 27. Protrusion; 28. Vertical wheel; 29. ​​Ratchet; 30. Wheel axle; 31. Pawl; 32. Torsion spring; 33. Shaft body. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides a technical solution: such as Figures 1-10The high-temperature resistant high-efficiency filter shown includes a bath tank 1. A servo slide rail 2 is fixedly installed at the front end of the bath tank 1, and the servo slide rail 2 controls the movement. A movable frame 8 is fixedly installed on the upper end of the slide platform of the servo slide rail 2. An air inlet pipe 16 is fixedly installed through the rear end of the movable frame 8, and the movable frame 8 supports the air inlet pipe 16. A groove is formed on the front edge of the outer surface of the air inlet pipe 16, and the groove limits the movement of the cross-shaped air guide plate 6. The cross-shaped air guide plate 6 is coaxially fitted into the groove of the air inlet pipe 16. The lower end of the air disc 6 is connected to the outlet of the air inlet pipe 16. Collection filter housings 7 are fixedly installed at all four ends of the cross-shaped air guide disc 6. The collection filter housings 7 collect dust and impurities. The lower end of the cross-shaped air guide disc 6 and the collection filter housings 7 below it are immersed in the liquid inside the bath 1. The liquid can be water containing flocculant, allowing the dust to agglomerate into large-volume impurities under the action of the flocculant after being separated into the liquid, facilitating collection. A shell-changing component is provided at the front end of the movable frame 8, which is connected to the cross-shaped air guide disc 6. A collection filter housing 7 is provided on one side of the bath 1. Equipped with a spray cleaning component, when dust-laden gas enters the liquid in the bath 1 through the inlet pipe 16 and the lower port of the cross-shaped air guide plate 6, the liquid removes the dispersed dust particles in the gas. The dust intercepted by the liquid is collected by the collection filter shell 7 below to prevent it from spreading widely in the liquid. At the same time, driven by the shell-changing component, the cross-shaped air guide plate 6 can rotate 90 degrees, allowing the clean collection filter shell 7 on the cross-shaped air guide plate 6 to be moved to the lower part to continue gas purification and collection, while the collection filter shell 7 originally located at the lower part is removed from the liquid. The air is rotated out and kept horizontal. When the servo slide rail 2 moves the air inlet pipe 16 and the cross air guide plate 6 to the spraying component, the spraying component will extend into the collection filter shell 7 that was originally located below and into the end of the cross air guide plate 6 that is connected to the collection filter shell 7, so as to wash out the collected dust and impurities, keep the collection filter shell 7 clean, and so on. This cycle is repeated to collect and remove the dust and impurities from the gas purification in real time, so as to extend the cycle of liquid contamination in the bath 1, reduce downtime, improve filtration efficiency, and meet the purification needs of advanced environmental protection industries.

[0019] A lower ring 21 and an upper ring 19 are coaxially arranged on the outer side of the air intake pipe 16. The upper ring 19 is close to the end of the lower ring 21. The lower ring 21 and the upper ring 19 can seal the collection filter 7 to prevent impurities collected in the collection filter 7 from escaping. Rubber pads can be installed on the contact surfaces of the collection filter 7, the lower ring 21, and the upper ring 19 to strengthen the sealing. The lower ring 21 is fixed to the movable frame 8, and the upper ring 19 is elastically connected to the movable frame 8. The collection filter 7 located at the lower end and one side end of the cross air guide plate 6 is respectively pressed against the lower ring 21 and the upper ring 19.

[0020] A T-shaped connector 20 is fixedly installed on the side of the upper ring body 19. Two guide posts 25 are symmetrically fixedly installed at the rear end of the T-shaped connector 20. The guide posts 25 guide the upper ring body 19. The movable frame 8 is slidably installed on the outer surface of the guide posts 25. A second return spring 26 is fixedly installed between the movable frame 8 and the opposite surface of the T-shaped connector 20. The second return spring 26 resets the upper ring body 19. The guide posts 25 pass through the interior of the second return spring 26. Rubber rings 17 are provided on the front and rear ends of the groove inside the air intake pipe 16. The two rubber rings 17 are respectively attached to the front and rear ends of the cross air guide plate 6. The rubber rings 17 can increase the friction, so that the cross air guide plate 6 can be firmly fixed after being rotated. It rotates on its own. A protrusion 27 is fixedly installed between the ends of the two guide posts 25. A vertical wheel 28 is provided on the upper end of the protrusion 27. An opening frame 4 is provided on the side of the vertical wheel 28. The opening frame 4 is fixed to the bath tank 1. When the servo slide rail 2 drives the air inlet pipe 16 and the cross air guide plate 6 to move and approach the steel pipe 5, the vertical wheel 28 on the protrusion 27 will contact the opening frame 4 and roll along the inclined end of the opening frame 4, allowing the protrusion 27 to move backward. This will drive the upper ring body 19 on the T-shaped connector 20 to move backward, so that the upper ring body 19 is separated from the end of the collection filter shell 7, allowing the collection filter shell 7 to be opened. This ensures that the steel pipe 5 can be smoothly inserted into the collection filter shell 7 for rinsing, thereby ensuring that the dust and impurities collected in the collection filter shell 7 are successfully removed.

[0021] The spraying unit includes a water pump 9 fixedly installed on one side of the bath tank 1. The inlet end of the water pump 9 is fixedly connected to the bath tank 1, and the outlet end of the water pump 9 is fixedly connected to a steel pipe 5. A nozzle 18 is installed at the end of the steel pipe 5. The water pump 9 can draw out the liquid in the bath tank 1 and spray it obliquely through the nozzle 18 on the steel pipe 5 to wash out the collected dust and impurities. The nozzle of the nozzle 18 is set at an angle, which can impact the dust and impurities towards the opening of the collection filter shell 7 for easy discharge. A filter plate 3 is fixedly installed on the upper side edge of the bath tank 1. The filter plate 3 can receive the liquid and dust and impurities discharged from the opening of the collection filter shell 7, so that the liquid falls back into the bath tank 1, while the dust and impurities are blocked on the filter plate 3. The filter plate 3 is located below the nozzle 18.

[0022] The shell-changing component includes a fixed base 10 fixedly installed at the front end of the movable frame 8. A rotating ring 14 is rotatably installed at one end of the fixed base 10, and the fixed base 10 serves to support the rotating ring 14. A pawl 31 is elastically installed on the rotating ring 14. A connecting frame 22 is fixedly installed at the front end of the cross air guide plate 6. A wheel axle 30 is fixedly installed in the middle of the connecting frame 22, and the connecting frame 22 serves to fix the wheel axle 30. The wheel axle 30 is coaxially arranged with the cross air guide plate 6. A ratchet 29 is coaxially fixedly installed at the end of the wheel axle 30. The cooperation between the ratchet 29 and the pawl 31 can push the cross air guide plate 6 to rotate 90 degrees in one direction. When the shell-changing rack 13 resets and drives the shell-changing gear 24 to reverse, the cross air guide plate 6 will not be driven to rotate, and the pawl 31 engages with the ratchet 29.

[0023] A shell-changing rack 13 is slidably mounted on the other end of the fixed base 10. A shell-changing frame 15 is provided on the side of the shell-changing rack 13. The shell-changing frame 15 serves to support and limit the shell-changing rack 13. The shell-changing frame 15 is fixed to the bath 1. A ring shaft 23 is coaxially fixed inside the rotating ring 14. A shell-changing gear 24 is coaxially fixed at the end of the ring shaft 23. The shell-changing gear 24 meshes with the shell-changing rack 13. When it moves to the shell-changing frame 15, the shell-changing frame 15 will support and limit the shell-changing rack 13, preventing the shell-changing rack 13 from moving to the side. The servo slide rail 2 will continue to drive the air intake pipe 16 and the cross air guide plate 6 to move to the side. At this time, the shell-changing gear 24 will roll on the shell-changing rack 13 to drive the rotating ring 14 to rotate. Then, through the pawl 31, it will push the ratchet 29 to rotate, thereby driving the cross air guide plate 6 to rotate ninety degrees.

[0024] A shaft 33 is rotatably mounted on the front end of the swivel 14. The shaft 33 extends through the rear end of the swivel 14. A pawl 31 is fixedly mounted on the rear end of the shaft 33. The shaft 33 serves to support the pawl 31. A torsion spring 32 is provided between the front end of the shaft 33 and the swivel 14. The torsion spring 32 serves to keep the pawl 31 in contact with the ratchet 29 at all times.

[0025] A guide rod 11 is fixedly installed on the side of the fixed base 10. The shell-changing rack 13 is slidably installed on the outer surface of the guide rod 11. A first return spring 12 is wound around the outside of the guide rod 11. The guide rod 11 serves to guide the first return spring 12. One end of the first return spring 12 is fixed to the fixed base 10. The first return spring 12 serves to reset the shell-changing rack 13. The other end of the first return spring 12 is fixed to the shell-changing rack 13.

[0026] This invention, as a specialized environmental protection device for air pollution control, purifies dust-laden gas by introducing it into the liquid within the bath 1 through the inlet pipe 16 and the lower port of the cross-shaped air guide plate 6. The liquid removes dispersed dust particles from the gas, while the dust trapped by the liquid is collected by the lower collection filter shell 7 to prevent widespread diffusion within the liquid. During this process, the servo slide rail 2 moves the inlet pipe 16 and the cross-shaped air guide plate 6 laterally. When they reach the shell-changing frame 15, the shell-changing frame 15 supports and limits the shell-changing rack 13, allowing the shell to be changed... The rack 13 cannot move laterally, but the servo slide rail 2 will continue to drive the intake pipe 16 and the cross guide plate 6 to move laterally. At this time, the shell-changing gear 24 will roll on the shell-changing rack 13 to drive the rotating ring 14 to rotate, which in turn drives the ratchet 29 to rotate through the pawl 31, thereby driving the cross guide plate 6 to rotate 90 degrees. This allows the clean collection filter shell 7 on the cross guide plate 6 to be rotated to the bottom to continue gas purification and collection, while the collection filter shell 7 that was originally located at the bottom is rotated out of the liquid and kept in a horizontal state. Then, the servo slide rail 2 drives the intake pipe 16 and the cross guide plate 6 to move laterally in the opposite direction. The movement, i.e., the movement towards the steel pipe 5, occurs when the servo slide rail 2 moves the air intake pipe 16 and the cross guide plate 6 close to the steel pipe 5. At this point, the vertical wheel 28 on the protrusion 27 contacts the opening frame 4 and rolls along the inclined end of the opening frame 4, causing the protrusion 27 to move backward. This, in turn, causes the upper ring 19 on the T-shaped connecting block 20 to move backward, disengaging the upper ring 19 from the end of the collection filter housing 7, allowing the collection filter housing 7 to be opened. Subsequently, the servo slide rail 2 continues to move the air intake pipe 16 and the cross guide plate 6 in the opposite direction, causing the steel pipe 5 to extend into the collection filter housing 7 that was originally located below, and to connect with the... The collection filter housing 7 is connected to the end of the cross-shaped air guide plate 6. At the same time, the water pump 9 draws out the liquid in the bath 1 and sprays it obliquely through the nozzle 18 on the steel pipe 5 to wash out the collected dust and impurities, keeping the collection filter housing 7 clean. Then, the servo slide rail 2 drives the air inlet pipe 16 and the cross-shaped air guide plate 6 to move in the opposite direction, that is, to move towards the direction of the shell replacement frame 15. This cycle is repeated to collect and remove the dust and impurities from the gas purification in real time, so as to extend the cycle of liquid contamination in the bath 1, reduce downtime, and thus improve filtration efficiency to meet the purification needs of advanced environmental protection industries.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant high-efficiency filter, comprising a bath (1), characterized in that: A servo slide rail (2) is fixedly installed at the front end of the bath tank (1). A movable frame (8) is fixedly installed on the upper end of the slide of the servo slide rail (2). An air inlet pipe (16) is fixedly installed through the rear end of the movable frame (8). A groove is provided at the front edge of the outer surface of the air inlet pipe (16). A cross air guide plate (6) is coaxially fitted at the groove of the air inlet pipe (16). The lower end of the cross air guide plate (6) is connected to the outlet of the air inlet pipe (16). A collection filter shell (7) is fixedly installed at each of the four ends of the cross air guide plate (6). The lower end of the cross air guide plate (6) and the collection filter shell (7) below it are immersed in the liquid inside the bath tank (1). A shell replacement component is provided at the front end of the movable frame (8). The shell replacement component is connected to the cross air guide plate (6). A spray washing component is provided on one side of the bath tank (1).

2. The high-temperature resistant high-efficiency filter according to claim 1, characterized in that: The outer side of the air intake pipe (16) is coaxially provided with a lower ring body (21) and an upper ring body (19). The upper ring body (19) is close to the end of the lower ring body (21). The lower ring body (21) is fixed to the movable frame (8). The upper ring body (19) is elastically connected to the movable frame (8). The collection filter shell (7) located at the lower end and one side end of the cross air guide plate (6) is respectively pressed against the lower ring body (21) and the upper ring body (19).

3. The high-temperature resistant high-efficiency filter according to claim 2, characterized in that: A T-shaped connector (20) is fixedly installed on the side of the upper ring (19). Two guide posts (25) are symmetrically fixedly installed on the rear end of the T-shaped connector (20). The movable frame (8) is slidably installed on the outer surface of the guide post (25). A second reset spring (26) is fixedly installed between the movable frame (8) and the opposite surface of the T-shaped connector (20). The guide post (25) passes through the interior of the second reset spring (26). Rubber rings (17) are provided on the front and rear ends of the groove of the air inlet pipe (16). The two rubber rings (17) are respectively attached to the front and rear ends of the cross air guide plate (6). A protrusion (27) is fixedly installed between the ends of the two guide posts (25). A vertical wheel (28) is provided on the upper end of the protrusion (27). An opening frame (4) is provided on the side of the vertical wheel (28). The opening frame (4) is fixed to the bath tank (1).

4. The high-temperature resistant high-efficiency filter according to claim 1, characterized in that: The spraying component includes a water pump (9) fixedly installed on one side of the bath tank (1). The inlet end of the water pump (9) is fixedly connected to the bath tank (1), and the outlet end of the water pump (9) is fixedly connected to a steel pipe (5). A nozzle (18) is installed at the end of the steel pipe (5). The nozzle of the nozzle (18) is inclined. A filter disc (3) is fixedly installed at the upper edge of the bath tank (1). The filter disc (3) is located below the nozzle (18).

5. A high-temperature resistant high-efficiency filter according to claim 1, characterized in that: The shell replacement component includes a fixed seat (10) fixedly installed at the front end of the movable frame (8). A rotating ring (14) is rotatably installed at one end of the fixed seat (10). A pawl (31) is elastically installed on the rotating ring (14). A connecting frame (22) is fixedly installed at the front end of the cross air guide plate (6). A wheel axle (30) is fixedly installed in the middle of the connecting frame (22). The wheel axle (30) is coaxially arranged with the cross air guide plate (6). A ratchet (29) is coaxially fixedly installed at the end of the wheel axle (30). The pawl (31) engages with the ratchet (29).

6. A high-temperature resistant high-efficiency filter according to claim 5, characterized in that: A shell-changing rack (13) is slidably installed at the other end of the fixed base (10). A shell-changing frame (15) is provided on the side of the shell-changing rack (13). The shell-changing frame (15) is fixed to the bath tank (1). A ring shaft (23) is coaxially fixedly installed inside the rotating ring (14). A shell-changing gear (24) is coaxially fixedly installed at the end of the ring shaft (23). The shell-changing gear (24) meshes with the shell-changing rack (13).

7. A high-temperature resistant high-efficiency filter according to claim 5, characterized in that: A shaft (33) is rotatably mounted on the front end of the swivel (14). The shaft (33) extends through the rear end of the swivel (14). The pawl (31) is fixedly mounted on the rear end of the shaft (33). A torsion spring (32) is provided between the front end of the shaft (33) and the swivel (14).

8. A high-temperature resistant high-efficiency filter according to claim 6, characterized in that: A guide rod (11) is fixedly installed on the side of the fixed base (10). The shell-changing rack (13) is slidably installed on the outer surface of the guide rod (11). A first reset spring (12) is wound around the outside of the guide rod (11). One end of the first reset spring (12) is fixed to the fixed base (10), and the other end of the first reset spring (12) is fixed to the shell-changing rack (13).

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