Gas separation and purification device

Abstract

The invention relates to the technical field of gas separation and purification, and discloses a gas separation and purification device which comprises a separation box, an upper ventilation seat is fixed to the upper portion of the separation box, a lower ventilation seat is fixed to the lower portion of the separation box, and a plurality of dust removal cloth bags are installed between the lower ventilation seat and the upper ventilation seat. A first air inlet is fixed on one side of the separation box, and an air outlet is fixed on the upper ventilation seat; a connecting seat is fixed below the lower ventilation seat, a supporting frame is fixed in the lower ventilation seat, a rotating rod is rotationally connected to the supporting frame, and a rotating frame is fixed at the upper end of the rotating rod, so that the purpose that a framework on the rotating frame rotates in a dust collecting bag can be achieved, and the contact position of the framework and the dust collecting bag can be conveniently adjusted; the area blocked by the framework can be reused, so that the gas filtering effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas separation and purification, and specifically to a gas separation and purification device. Background Art

[0002] The nitrogen gas prepared by an air compressor is widely used in industrial fields such as electronics, food, chemical industry, and medical treatment. High-purity nitrogen gas is used as a protective gas, an inert gas environment, and for food preservation in these industries. In addition, nitrogen gas can also be used as a refrigerant in refrigeration equipment, etc. In the process of preparing nitrogen gas by an air compressor, first, humid air is sent into the air compressor for compression. The compressed air enters a buffer tank to maintain the stability of the air supply pressure. The compressed air passes through an air purification system, including a high-efficiency oil remover, a refrigerated dryer, and a filter. These devices remove oil, moisture, and fine particles in the air to ensure that the air reaches a high quality standard without oil. The purified air enters a PSA adsorption system, including a process storage tank, an adsorption tower, pneumatic valves, and a PLC controller. The adsorption tower is filled with carbon molecular sieves. Using the principle of pressure swing adsorption, the adsorption rates of oxygen molecules and nitrogen molecules are different. Oxygen molecules are preferentially adsorbed, while nitrogen gas is enriched in the gas phase to form finished nitrogen gas.

[0003] Currently, in the process of preparing nitrogen gas from compressed air, mainly bag dust removal equipment is used to remove fine particles in the air. Due to the long-term use of the bag dust removal equipment, a large amount of dust will adhere to the surface of the dust removal bag, thus affecting the air filtration effect and requiring timely backwashing and cleaning. In the prior art, since a support skeleton is fixed inside the dust removal bag, it can support the dust removal bag when contacting the dust removal bag, improving the gas flow effect. However, when the support skeleton contacts a part of the surface of the dust removal bag, a part of the area will be blocked, and the blocked part of the area cannot filter the gas, thus affecting the efficiency of air separation and purification. Summary of the Invention

[0004] The present invention provides a gas separation and purification device, which has the beneficial effect of realizing the rotation of the skeleton on the rotating frame inside the dust removal bag, facilitating the adjustment of the contact position between the skeleton and the dust removal bag, enabling the reused area blocked by the skeleton, and facilitating the gas to flow through during gas filtration, and solves the problem mentioned in the above background art that since a support skeleton is fixed inside the dust removal bag, it can support the dust removal bag when contacting the dust removal bag, improving the gas flow effect. However, when the support skeleton contacts a part of the surface of the dust removal bag, a part of the area will be blocked, and the blocked part of the area cannot filter the gas, thus affecting the efficiency of air separation and purification.

[0005] The present invention provides the following technical solution: a gas separation and purification device, comprising a separation box, an upper ventilation seat is fixed above the separation box, and a lower ventilation seat is fixed below the separation box, a plurality of dust removal bags are installed between the lower ventilation seat and the upper ventilation seat, a first air inlet is fixed on one side of the separation box, and an air outlet is fixed on the upper ventilation seat; A connecting seat is fixed below the lower ventilation seat, and a supporting frame is fixed inside the lower ventilation seat. A rotating rod is rotatably connected to the supporting frame, and a rotating frame is fixed to the upper end of the rotating rod. A plurality of skeletons are arranged in the dust removal bag, and the lower ends of the skeletons are connected to the rotating frame. A ratchet gear is fixed to the lower end of the rotating rod.

[0006] As an optional solution of the gas separation and purification device described in the present invention, wherein: a plug rod is fixed on the connecting seat, a rack is meshingly connected to one side of the ratchet gear, one end of the rack is elastically connected to the plug rod through a first spring, and a first interference bar is fixed to one end of the rack.

[0007] As an optional solution for the gas separation and purification device described in the present invention, a baffle is provided on one side of the first resistance strip, and the baffle is elastically connected to one end of the air inlet of the connecting seat through a first torsion spring; a second air inlet is provided on one side of the lower ventilation seat, and the second air inlet is connected to the air inlet of the connecting seat through a pipe.

[0008] As an optional scheme for the gas separation and purification device described in the present invention, wherein: a vertical pole is fixed between the upper ventilation seat and the lower ventilation seat, a sliding block is slidably connected to the vertical pole, a clamping seat is fixed on the sliding block, the clamping seat is clamped on the dust removal bag, a rotating ring is rotatably connected to the clamping seat, a brush plate is fixed to the lower end of the rotating ring, an electric push rod is fixed on the upper ventilation seat, a connecting plate is fixed to one side of the clamping seat, and the connecting plate is fixedly connected to the telescopic end of the electric push rod.

[0009] As an optional scheme of the gas separation and purification device described in the present invention, wherein: both sides of the base are rotatably connected with a flapping plate, the flapping plate is elastically connected to the base through a second torsion spring, a strip box is arranged on the base, both ends of the strip box are slidably connected with a first resistance block, one end of the first resistance block is in resistance with the flapping plate, and the first resistance block is elastically connected to the strip box through a second spring.

[0010] As an alternative embodiment of the gas separation and purification device of the present invention, one end of the first abutting block is fixed with a first abutting frame. A first abutting rod is arranged inside the slider. A second abutting block that abuts against the first abutting frame is arranged inside the strip-shaped box. The second abutting block is fixedly connected to the first abutting frame. A third spring is connected between the first abutting rod and the slider. A plurality of triangular abutting blocks that abut against the first abutting rod are fixed on the vertical rod.

[0011] As an alternative embodiment of the gas separation and purification device of the present invention, one side of the strip-shaped box is slidably connected with a first sliding bracket. A second rack is fixed on the first sliding bracket. A second abutting strip that abuts against the first abutting frame is fixed on one side of the first sliding bracket. A fourth spring is connected between the second abutting strip and the strip-shaped box. An arc-shaped tooth block that meshes with the second rack is fixed on the rotating ring.

[0012] As an alternative embodiment of the gas separation and purification device of the present invention, a chute is provided on the rotating frame. A sliding rod is arranged inside the chute. A guiding block is slidably connected to the sliding rod. The framework is fixed on the guiding block. The guiding block is elastically connected to the rotating frame through a fifth spring.

[0013] As an alternative embodiment of the gas separation and purification device of the present invention, a hollow conical block is provided on the upper air inlet seat. The hollow conical block is elastically connected to the upper air inlet seat through a sixth spring. The framework abuts against the hollow conical block.

[0014] As an alternative embodiment of the gas separation and purification device of the present invention, a second abutting rod is arranged above the slider. The second abutting rod is elastically connected to the upper air inlet seat through a seventh spring. A second sliding bracket is fixed on the upper air inlet seat. A abutting block is slidably connected to the second sliding bracket. An eighth spring is connected between the abutting block and the second sliding bracket. One end of the abutting block abuts against the hollow conical block, and the other end of the abutting block abuts against the second abutting rod.

[0015] The present invention has the following beneficial effects: 1. In this gas separation and purification device, the first air inlet provided on the separation box facilitates the transportation of compressed gas into the separation box. The dust removal cloth bag can achieve the purpose of filtering impurities in the gas, thereby improving the purity of the gas. The air outlet fixed on the upper air seat facilitates the discharge of the purified gas. The second air inlet provided on one side of the lower air seat can achieve the purpose of connecting with the pulse dust collector, causing the pulse air flow to flow along the pipeline into the connecting seat. The support frame is provided to enable the rotating rod to drive the rotating frame to rotate, and the purpose of rotating the skeleton on the rotating frame inside the dust removal cloth bag can be achieved, facilitating the adjustment of the contact position between the skeleton and the dust removal cloth bag, enabling the area blocked by the skeleton to be reused, and facilitating the flow of gas during filtration, thereby improving the gas filtration effect. When the pulse air flow flows into the connecting seat, it can push the baffle to rotate, causing the first contact bar fixed to one end of the rack to be in contact when the baffle deflects, facilitating the horizontal movement of the rack to automatically drive the ratchet gear to rotate in one direction. The rotating ratchet gear can achieve the purpose of driving the rotating rod, rotating frame, and skeleton to rotate synchronously.

[0016] 2. In this gas separation and purification device, when the dust removal cloth bag needs to be cleaned, the pulse dust collector continuously generates pulse air flow. Affected by the impact force inside the dust removal cloth bag, the impurities are shaken off, thereby achieving the purpose of cleaning and dust removal of the dust removal cloth bag. At the same time, the clamp fixed on the slider can be clamped on the dust removal cloth bag. The brush plate can be installed through the rotating ring rotatably connected to the clamp. When the electric push rod drives the connecting plate to move vertically, the slider can move vertically on the vertical rod. At the same time, the clamp moves vertically up and down on the dust removal cloth bag, and the purpose of the brush plate cleaning the impurities on the dust removal cloth bag can be achieved, improving the cleaning efficiency of the impurities. The flapping plates rotatably connected to both sides of the clamp can achieve the purpose of flapping the dust removal cloth bag when deflecting, thereby accelerating the effect of impurities falling off from the dust removal cloth bag. The several triangular contact blocks fixed on the vertical rod can achieve the purpose of intermittently and continuously contacting the first contact rod when the slider moves vertically. Through the linkage of the second contact block, the first contact frame, and the first contact block, the purpose of the flapping plate automatically deflecting to flap the dust removal cloth bag can be achieved. The first contact frame can achieve the purpose of contacting the second contact bar fixed on the first sliding bracket during movement, causing the first sliding bracket to drive the second rack to move horizontally, and the purpose of the second rack driving the arc-shaped gear block, rotating ring, and brush plate to rotate synchronously can be achieved, greatly improving the effect of the brush plate removing the impurities attached to the dust removal cloth bag.

[0017] 3. The gas separation and purification device can achieve the purpose of elastic connection between the skeleton and the rotating frame through the cooperation of the slide groove, the slide rod, the fifth spring and the guide block. The purpose of interference with the skeleton can be achieved through the hollow conical block arranged on the upper ventilation seat, so that the skeleton is pressed against the inner wall of the dust bag when the dust bag is working, thereby playing a supporting role. When the second interference rod elastically connected to the upper ventilation seat is released from the interference with the slider, the interference block can be horizontally moved on the second sliding bracket by the action of the elastic force, so that the movement of the interference block releases the interference with the hollow conical block, so that the hollow conical block automatically moves upward under the elastic force, thereby releasing the interference with the skeleton, and causing the skeleton to automatically move toward the middle position of the rotating frame, so that the dust bag and the skeleton can be separated by a certain distance, thereby improving the effect of the flapping plate on the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the separation box of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the connecting seat and the rotating frame of the present invention.

[0021] Figure 4 It is a cross-sectional view of the dust removal bag structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the internal structure of the strip box of the present invention.

[0023] Figure 6 for Figure 2 A partial enlarged view of point A in the middle.

[0024] Figure 7 for Figure 5 A partial enlarged view of point B in the middle.

[0025] In the figure: 1. Separation box; 2. Upper ventilation seat; 3. Lower ventilation seat; 4. Dust removal cloth bag; 5. First air inlet; 6. Air outlet; 7. Connecting seat; 8. Support frame; 9. Rotating rod; 10. Rotating frame; 11. Skeleton; 12. Ratchet gear; 13. Insert rod; 14. Rack; 15. First spring; 16. First abutting strip; 17. Baffle; 18. First torsion spring; 19. Second air inlet; 20. Vertical rod; 21. Clamping seat; 22. Rotating ring; 23. Brush plate; 24. Electric push rod; 25. Connecting plate; 26. Slide block; 27. Flapping plate; 28. Second torsion spring; 29. Striped box; 30. First abutting block; 31. Second spring; 32. First abutting frame; 33. First abutting rod; 331. Second abutting block; 34. Third spring; 35. Triangular abutting block; 36. First sliding support; 37. Second rack; 38. Second abutting strip; 39. Fourth spring; 40. Arc-shaped tooth block; 41. Chute; 42. Slide rod; 43. Guide block; 44. Fifth spring; 45. Hollow conical block; 46. Sixth spring; 47. Second abutting rod; 48. Seventh spring; 49. Second sliding support; 50. Abutting block; 51. Eighth spring. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1. Please refer to Figures 1 to 7 , a gas separation and purification device, including a separation box 1, an upper ventilation seat 2 is fixed above the separation box 1, and a lower ventilation seat 3 is fixed below the separation box 1. A plurality of dust removal cloth bags 4 are installed between the lower ventilation seat 3 and the upper ventilation seat 2. A first air inlet 5 is fixed on one side of the separation box 1, and an air outlet 6 is fixed on the upper ventilation seat 2; A connecting seat 7 is fixed below the lower ventilation seat 3, and a support frame 8 is fixed inside the lower ventilation seat 3. A rotating rod 9 is rotatably connected to the support frame 8. The upper end of the rotating rod 9 is fixed with a rotating frame 10. A plurality of skeletons 11 are arranged inside the dust removal cloth bag 4, and the lower end of the skeleton 11 is connected to the rotating frame 10. The lower end of the rotating rod 9 is fixed with a ratchet gear 12.

[0028] An insert rod 13 is fixed on the connecting seat 7. A rack 14 is meshed and connected to one side of the ratchet gear 12. One end of the rack 14 is elastically connected to the insert rod 13 through a first spring 15. One end of the rack 14 is fixed with a first abutting strip 16.

[0029] A baffle 17 is provided on one side of the first abutment strip 16, and the baffle 17 is elastically connected to one end of the air inlet of the connecting seat 7 through a first torsion spring 18. A second air inlet 19 is provided on one side of the lower ventilation seat 3, and the second air inlet 19 is connected to the air inlet of the connecting seat 7 through a pipe.

[0030] When purifying gas, refer to Figure 1 The compressed gas is delivered to the separation box 1 through the first air inlet 5 provided on the separation box 1, and the impurities in the gas can be filtered through the dust bag 4, so that the impurities are retained on the outer surface of the dust bag 4, and the filtered gas flows into the upper ventilation seat 2 through the inside of the dust bag 4, and then discharged from the air outlet 6; When the frame 11 contacts the surface of the dust bag 4, it plays a supporting role, and the area blocked by the frame 11 cannot be filtered, which will affect the efficiency of gas filtration. Figures 1 - 4 , connect the second air inlet 19 set on one side of the lower ventilation seat 3 with the pulse dust collector. When the pulse dust collector is working, the generated pulse airflow is transported to the connecting seat 7 through the pipeline connected to the second air inlet 19, thereby pushing the baffle 17 to rotate in the rotating connecting seat 7, and the first torsion spring 18 accumulates force. During the rotation process, the baffle 17 can conflict with the first interference bar 16 fixed on one end of the rack 14, prompting the rack 14 to slide in the insertion rod 13, and the first spring 15 accumulates force. At the same time, the rack 14 drives the ratchet gear 12 to rotate unidirectionally, so that the rotating rod 9 rotates on the support frame 8, which can achieve the purpose of the rotating frame 10 driving several skeletons 11 to rotate in the dust bag 4, and it is convenient to adjust the contact position of the skeleton 11 and the dust bag 4, so that the area blocked by the skeleton 11 can be reused, which is convenient for gas to flow through during filtration and improve the effect of gas filtration.

[0031] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 7 A vertical rod 20 is fixed between the upper ventilation seat 2 and the lower ventilation seat 3, a slider 26 is slidably connected to the vertical rod 20, a clamping seat 21 is fixed to the slider 26, the clamping seat 21 is clamped on the dust bag 4, a rotating ring 22 is rotatably connected to the clamping seat 21, a brush plate 23 is fixed to the lower end of the rotating ring 22, an electric push rod 24 is fixed to the upper ventilation seat 2, a connecting plate 25 is fixed to one side of the clamping seat 21, and the connecting plate 25 is fixedly connected to the telescopic end of the electric push rod 24.

[0032] Both sides of the base 21 are rotatably connected with a flapping plate 27, and the flapping plate 27 is elastically connected to the base 21 through a second torsion spring 28. A strip box 29 is provided on the base 21, and both ends of the strip box 29 are slidably connected with a first resistance block 30, one end of the first resistance block 30 is in resistance with the flapping plate 27, and the first resistance block 30 is elastically connected to the strip box 29 through a second spring 31.

[0033] One end of the first abutting block 30 is fixedly provided with a first abutting frame 32. A first abutting rod 33 is arranged inside the slider 26. A second abutting block 331 which abuts against the first abutting frame 32 is arranged inside the strip-shaped box 29. The second abutting block 331 is fixedly connected with the first abutting frame 32. A third spring 34 is connected between the first abutting rod 33 and the slider 26. A plurality of triangular abutting blocks 35 which abut against the first abutting rod 33 are fixedly arranged on the vertical rod 20.

[0034] A first sliding bracket 36 is slidably connected to one side of the strip-shaped box 29. A second rack 37 is fixedly arranged on the first sliding bracket 36. A second abutting strip 38 which abuts against the first abutting frame 32 is fixedly arranged on one side of the first sliding bracket 36. A fourth spring 39 is connected between the second abutting strip 38 and the strip-shaped box 29. An arc-shaped tooth block 40 which meshes with the second rack 37 is fixedly arranged on the rotating ring 22.

[0035] A chute 41 is formed in the rotating frame 10. A slide bar 42 is arranged inside the chute 41. A guide block 43 is slidably connected to the slide bar 42. The framework 11 is fixedly arranged on the guide block 43. The guide block 43 is elastically connected with the rotating frame 10 through a fifth spring 44.

[0036] When impurities on the dust removal cloth bag 4 need to be cleaned, refer to Figures 1 - 7, the pulse dust collector continuously generates pulsed airflows. Affected by the impact force inside the dust removal cloth bag 4, impurities are shaken off, thus achieving the purpose of cleaning the dust removal cloth bag 4 and dust removal. At the same time, the electric push rod 24 drives the connecting plate 25 connected to several clamping seats 21 to move vertically up and down in the separation box 1, enabling the slider 26 to slide on the vertical rod 20. Meanwhile, the clamping seat 21 drives the brush plate 23 to move vertically on the outer surface of the dust removal cloth bag 4, and the impurities attached to the surface of the dust removal cloth bag 4 can be removed. To further improve the effect of cleaning impurities, during the vertical movement of the slider 26, the purpose of intermittently and continuously contacting the triangular contact block 35 with the first contact rod 33 can be achieved, prompting the first contact rod 33 to drive the second contact block 331 to reciprocate. The third spring 34 continuously stores and releases elastic force. The second contact block 331 can contact the first contact frame 32 in the strip-shaped box 29, prompting the first contact frame 32 to drive the first contact block 30 to move outward from the strip-shaped box 29. The second spring 31 stores elastic force. The moving first contact block 30 can push the flapping plate 27 to swing, and the second torsion spring 28 stores elastic force, achieving the purpose of the flapping plate 27 swinging to automatically slap the dust removal cloth bag 4 and improving the effect of impurity shedding. At the same time, during the movement of the first contact frame 32, the purpose of contacting the second contact strip 38 fixed on the first sliding bracket 36 can be achieved. The fourth spring 39 stores elastic force, prompting the first sliding bracket 36 to drive the second rack 37 to move horizontally, achieving the purpose of the second rack 37 driving the arc-shaped tooth block 40, the rotating ring 22, and the brush plate 23 to rotate synchronously, which can greatly improve the effect of the brush plate 23 removing the impurities attached to the dust removal cloth bag 4.

[0037] Embodiment 3, this embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figures 1 to 7 , a chute 41 is provided on the rotating frame 10. A sliding rod 42 is arranged in the chute 41. A guiding block 43 is slidably connected to the sliding rod 42. The framework 11 is fixed on the guiding block 43. The guiding block 43 is elastically connected to the rotating frame 10 through a fifth spring 44.

[0038] A hollow conical block 45 is provided on the upper air vent seat 2. The hollow conical block 45 is elastically connected to the upper air vent seat 2 through a sixth spring 46. The framework 11 abuts against the hollow conical block 45.

[0039] A second contact rod 47 is provided above the slider 26. The second contact rod 47 is elastically connected to the upper air vent seat 2 through a seventh spring 48. A second sliding bracket 49 is fixed on the upper air vent seat 2. A contact block 50 is slidably connected to the second sliding bracket 49. An eighth spring 51 is connected between the contact block 50 and the second sliding bracket 49. One end of the contact block 50 abuts against the hollow conical block 45, and the other end of the contact block 50 abuts against the second contact rod 47.

[0040] In order to further improve the beating effect of the beating plate 27, reference is made to Figures 2 - 6 , when the slider 26 moves downward along the vertical rod 20, the purpose of releasing the contact between the second contact rod 47 and the slider 26 can be achieved. The seventh spring 48 releases elastic force, so that the contact block 50 moves horizontally on the second sliding bracket 49 under the action of the elastic force. The eighth spring 51 releases elastic force, prompting the contact block 50 to move horizontally on the upper ventilation seat 2, and the contact between the contact block 50 and the hollow conical block 45 can be released. The hollow conical block 45 is subjected to the elastic force of the sixth spring 46, and the purpose of the hollow conical block 45 moving vertically upward can be achieved, prompting the hollow conical block 45 to release the contact with a plurality of skeletons 11. The guide block 43 fixed at the lower end of the skeleton 11 slides on the slide rod 42 in the chute 41 under the elastic force of the fifth spring 44, and automatically moves closer to the middle position of the rotating frame 10, so that a certain distance is formed between the dust removal bag 4 and the skeleton 11, prompting the beating plate 27 to increase the contact area with the surface of the dust removal bag 4 and the amplitude of the beating during the beating process, and the beating effect of the beating plate 27 on the dust removal bag 4 can be improved.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. Gas separation and purification device, including a separation box (1), characterized in that: An upper ventilation seat (2) is fixed above the separation box (1), and a lower ventilation seat (3) is fixed below the separation box (1); a plurality of dust removal bags (4) are installed between the lower ventilation seat (3) and the upper ventilation seat (2); a first air inlet (5) is fixed on one side of the separation box (1), and an air outlet (6) is fixed on the upper ventilation seat (2); A connecting seat (7) is fixed below the lower ventilation seat (3), and a support frame (8) is fixed inside the lower ventilation seat (3). A rotating rod (9) is rotatably connected to the support frame (8), and a rotating frame (10) is fixed to the upper end of the rotating rod (9). A plurality of skeletons (11) are arranged inside the dust removal bag (4), and the lower ends of the skeletons (11) are connected to the rotating frame (10). A ratchet gear (12) is fixed to the lower end of the rotating rod (9).

2. The gas separation and purification device according to claim 1, characterized in that: An insertion rod (13) is fixed on the connection seat (7), a rack (14) is meshingly connected to one side of the ratchet gear (12), one end of the rack (14) is elastically connected to the insertion rod (13) via a first spring (15), and a first interference strip (16) is fixed to one end of the rack (14).

3. The gas separation and purification device according to claim 2, wherein: A baffle (17) is provided on one side of the first abutment strip (16), and the baffle (17) is elastically connected to one end of the air inlet of the connecting seat (7) via a first torsion spring (18). A second air inlet (19) is provided on one side of the lower ventilation seat (3), and the second air inlet (19) is connected to the air inlet of the connecting seat (7) via a pipeline.

4. The gas separation and purification device according to claim 3, wherein: A vertical rod (20) is fixed between the upper ventilation seat (2) and the lower ventilation seat (3); a slider (26) is slidably connected to the vertical rod (20); a clamping seat (21) is fixed to the slider (26); the clamping seat (21) is clamped on the dust removal bag (4); a rotating ring (22) is rotatably connected to the clamping seat (21); a brush plate (23) is fixed to the lower end of the rotating ring (22); an electric push rod (24) is fixed to the upper ventilation seat (2); a connecting plate (25) is fixed to one side of the clamping seat (21); and the connecting plate (25) is fixedly connected to the telescopic end of the electric push rod (24).

5. The gas separation and purification device according to claim 4, characterized in that: Both sides of the card base (21) are rotatably connected with a beating plate (27), and the beating plate (27) is elastically connected to the card base (21) via a second torsion spring (28). A strip box (29) is provided on the card base (21), and both ends of the strip box (29) are slidably connected with a first abutting block (30), one end of the first abutting block (30) abuts against the beating plate (27), and the first abutting block (30) is elastically connected to the strip box (29) via a second spring (31).

6. The gas separation and purification device according to claim 5, characterized in that: One end of the first abutting block (30) is fixed with a first abutting frame (32). A first abutting rod (33) is arranged in the slider (26). A second abutting block (331) that abuts against the first abutting frame (32) is arranged in the strip-shaped box (29). The second abutting block (331) is fixedly connected to the first abutting frame (32). A third spring (34) is connected between the first abutting rod (33) and the slider (26). A plurality of triangular abutting blocks (35) that abut against the first abutting rod (33) are fixed on the vertical rod (20).

7. The gas separation and purification device according to claim 6, characterized in that: A first sliding bracket (36) is slidably connected to one side of the strip-shaped box (29). A second rack (37) is fixed on the first sliding bracket (36). A second abutting strip (38) that abuts against the first abutting frame (32) is fixed to one side of the first sliding bracket (36). A fourth spring (39) is connected between the second abutting strip (38) and the strip-shaped box (29). An arc-shaped tooth block (40) that meshes with the second rack (37) is fixed on the rotating ring (22).

8. The gas separation and purification device according to claim 7, characterized in that: A chute (41) is formed in the rotating frame (10). A sliding rod (42) is arranged in the chute (41). A guiding block (43) is slidably connected to the sliding rod (42). The framework (11) is fixed to the guiding block (43). The guiding block (43) is elastically connected to the rotating frame (10) through a fifth spring (44).

9. The gas separation and purification device according to claim 8, characterized in that: A hollow conical block (45) is arranged on the upper air vent seat (2). The hollow conical block (45) is elastically connected to the upper air vent seat (2) through a sixth spring (46). The framework (11) abuts against the hollow conical block (45).

10. The gas separation and purification device according to claim 9, characterized in that: A second abutting rod (47) is arranged above the slider (26). The second abutting rod (47) is elastically connected to the upper air vent seat (2) through a seventh spring (48). A second sliding bracket (49) is fixed on the upper air vent seat (2). A resisting block (50) is slidably connected to the second sliding bracket (49). An eighth spring (51) is connected between the resisting block (50) and the second sliding bracket (49). One end of the resisting block (50) abuts against the hollow conical block (45), and the other end of the resisting block (50) abuts against the second abutting rod (47).

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