Industrial waste gas purification treatment equipment and method

Abstract

The invention belongs to the technical field of waste gas treatment, and particularly discloses industrial waste gas purification treatment equipment and method.The industrial waste gas purification treatment equipment comprises a waste gas frame, the front side face of the waste gas frame is communicated with a ventilation pipe, and industrial waste gas is introduced into the waste gas frame through the ventilation pipe; a plurality of exhaust pipes which are vertically arranged in parallel are mounted at the top of the waste gas frame, the top ends of the exhaust pipes are connected through a top plate, filter elements are inserted into the exhaust pipes, plugging parts are arranged at the bottoms of the filter elements and comprise bottom plates, and the bottom plates correspondingly plug openings in the bottoms of the exhaust pipes. The bottom opening of the exhaust pipe is plugged by the bottom plate through the plugging part, at the moment, the filter element on the inner side of the exhaust pipe is pulled out through the handle, a new filter element is inserted into the exhaust pipe again, real-time replacement of the filter element is completed, and the purification process of industrial waste gas does not need to be interrupted in the filter element replacement process; the continuous effect of purifying the industrial waste gas is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment, and in particular relates to industrial waste gas purification treatment equipment and method. Background Art

[0002] Waste gas treatment mainly refers to the work of treating industrial waste gases such as dust particles, flue gas, odorous gases, and toxic and harmful gases generated in industrial sites. The current waste gas treatment equipment needs to be shut down before the waste gas purification materials can be replaced. The waste gas purification materials cannot be quickly replaced without shutting down the equipment, which reduces the waste gas treatment efficiency. Summary of the Invention

[0003] In response to the above problems, the present invention provides an industrial waste gas purification and treatment device and method to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A kind of industrial waste gas purification and treatment equipment includes a waste gas frame, the front side of the waste gas frame is connected to a ventilation pipe, industrial waste gas enters the interior of the waste gas frame through the ventilation pipe, a plurality of exhaust pipes arranged vertically and parallel are installed on the top of the waste gas frame, the top ends of the plurality of exhaust pipes are connected by a top plate, a filter element is inserted into the exhaust pipe, a sealing component is provided at the bottom of the filter element, and the sealing component includes a bottom plate, and the bottom plate corresponds to the bottom opening of the exhaust pipe. After the bottom plate moves down to the inside of the waste gas frame, the industrial waste gas inside the waste gas frame enters the exhaust pipe, the filter element is used to absorb and purify toxic substances and particles in the waste gas, and the top opening of the exhaust pipe discharges the treated gas, a cover plate is provided on the top of the filter element, the diameter of the cover plate is larger than the outer diameter of the exhaust pipe, and a handle is connected to the top of the cover plate, and the cover plate is configured as honeycomb activated carbon.

[0006] Furthermore, the blocking component also includes a filter plate, which is located on the top of the base plate, and the bottom surface of the filter plate is connected to the base plate by a vertical rod. Two baffles are fixed to the bottom of the inner side surface of the exhaust pipe circumference, and the baffles are located between the filter plate and the base plate. When the base plate corresponds to blocking the bottom opening of the exhaust pipe, the top surface of the base plate fits with the bottom surface of the baffle.

[0007] Furthermore, two horizontally arranged rotating pipes are inserted into the exhaust gas frame, and the two rotating pipes correspond to multiple exhaust pipes respectively. A limiting plate is fixed inside the exhaust gas frame to limit the inner end of the rotating pipe. The inner end of the rotating pipe rotates and passes through the bottom of the limiting plate. A circular plate is fixed to the inner end of the rotating pipe, and the outer side surface of the circular plate fits with the inner side surface of the limiting plate. The outer end of the rotating pipe corresponds to and passes through the side surface of the exhaust gas frame. The surface of the rotating pipe is provided with an inner groove and an outer groove. The inner groove is on the inner side of the exhaust gas frame, and the outer groove is on the outer side of the exhaust gas frame. A plurality of rotating rings are sleeved on the surface of the rotating pipe, and the plurality of rotating rings correspond one-to-one to the bottom openings of the plurality of exhaust pipes.

[0008] Furthermore, the surface of the rotating ring is provided with arc-shaped protrusions, and the rotating rotating tube uses the arc-shaped protrusions on the surface of the rotating ring to push the bottom plate to move up and down.

[0009] Furthermore, an inner rod is provided inside the rotating tube, which blocks the inside of the rotating tube, and the inner side surfaces of the circumference of multiple rotating rings are connected to the inner rod by a connecting rod. An arc-shaped plate is provided on the outside of the outer groove of the rotating tube, and a ring is sleeved on the surface of the arc-shaped plate, and the ring is spirally sleeved on the surface of the rotating tube.

[0010] Furthermore, an arc frame is fixed to the outer end of the rotating pipe, a protruding rod passing through the arc frame is fixed to the side of the exhaust frame, nuts are provided on both sides of the arc frame, and the nuts are spirally sleeved on the surface of the protruding rod.

[0011] Furthermore, a clamping head is embedded in the bottom end of the arc frame, and the clamping head cooperates with the arc frame with a snap-on protrusion. The outer side surface of the clamping head is set to an arc surface. Two opposite side panels are fixed to the bottom of the arc frame, and side blocks are fixed on both sides of the clamping head. Vertical grooves corresponding to the side blocks are set on the surface of the side panels, and inner strips are inherent in the vertical grooves. The side blocks are slidably sleeved on the surface of the inner strips. A baffle is connected between the two side panels, and a spring piece is connected between the top surface of the baffle and the bottom surface of the clamping head.

[0012] The present invention also provides an industrial waste gas purification method, which is applied to the industrial waste gas purification equipment described above, and comprises the following steps:

[0013] S1. Use the handle to insert the filter element into the inner side of the exhaust pipe. The rotating ring uses the arc-shaped protrusion to support the bottom plate so that the bottom plate blocks the bottom of the exhaust pipe.

[0014] S2. After the industrial waste gas enters the exhaust frame through the vent pipe, the rotating pipe rotates. The rotating pipe uses the connecting rod to drive the rotating ring to rotate. When the rotating ring drives the arc-shaped protrusion to rotate, the highest point of the arc-shaped protrusion gradually moves away from the bottom plate. Under the influence of gravity, the bottom plate moves down at the bottom end of the exhaust pipe until the bottom plate is separated from the bottom opening of the exhaust pipe. At this time, the bottom surface of the filter plate corresponds to the top surface of the baffle, and the industrial waste gas enters the inside of the exhaust pipe through the bottom opening of the exhaust pipe;

[0015] S3. The filter plate initially filters the industrial waste gas. At this time, the filter element comprehensively purifies and absorbs the industrial waste gas after the initial filtration until the cover plate performs the final absorption of the industrial waste gas, so that the treated gas is discharged into the external environment.

[0016] S4. Rotate the rotating tube in the opposite direction. After the bottom plate blocks the bottom opening of the exhaust pipe using the arc-shaped protrusion on the rotating ring, use the handle to pull out the filter element inside the exhaust pipe to complete the real-time replacement of the filter element.

[0017] Technical effects and advantages of the present invention:

[0018] 1. The present invention uses a blocking component to make the bottom plate block the bottom opening of the exhaust pipe. At this time, the filter element inside the exhaust pipe is pulled out by a handle, and a new filter element is reinserted into the exhaust pipe to complete the real-time replacement of the filter element. During the process of replacing the filter element, there is no need to interrupt the purification process of industrial waste gas, thereby ensuring the continuous effect of industrial waste gas purification.

[0019] 2. The present invention adjusts the relative distance between the collar and the circular plate by rotating the collar. When the inner side of the collar fits against the side of the exhaust frame, the outer side of the circular plate fits against the inner side of the limiting plate. At this time, the limiting of the rotating pipe is completed, preventing the rotating pipe from fluctuating back and forth inside the exhaust frame, and preventing the arc-shaped protrusion of the rotating ring from separating from the bottom surface of the base plate due to the fluctuation of the rotating pipe.

[0020] 3. The present invention uses the elastic force of the spring piece to make the side block at the top of the inner strip. At this time, the top of the clamping head cooperates with the buckle protrusion to prevent the rotating tube from rotating. The elastic force of the spring piece is used to keep the rotating tube in a stable state. At this time, the filter element can be quickly replaced, ensuring the stability of the rotating tube during the process of replacing the filter element and preventing the rotating tube from rotating during the process of replacing the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of an industrial waste gas purification and treatment equipment according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the internal components of an exhaust frame according to an embodiment of the present invention;

[0023] Figure 3 This is an embodiment of the present invention Figure 2 A magnified view of the structure of part A;

[0024] Figure 4 2. It is a schematic diagram of a filter plate connected to a base plate using vertical rods according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of a rotating tube surface sleeved with multiple rotating rings according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of a swivel according to an embodiment of the present invention using a connecting rod to connect the inner rod inside the swivel tube;

[0027] Figure 7 2. This is a schematic diagram of the outer end of the rotating tube connected to the arc frame according to an embodiment of the present invention;

[0028] Figure 8 2 is a schematic diagram of the corresponding embodiment of the clamping head and the protruding rod of the present invention;

[0029] In the figure: 1. exhaust frame; 2. vent pipe; 3. exhaust pipe; 4. top plate; 5. filter element; 6. bottom plate; 7. cover plate; 8. handle; 9. filter plate; 10. vertical rod; 11. baffle; 12. rotating tube; 13. limiting plate; 14. circular plate; 15. inner groove; 16. outer groove; 17. swivel; 18. arc-shaped protrusion; 19. inner rod; 20. arc plate; 21. collar; 22. arc frame; 23. protrusion; 24. nut; 25. clamp; 26. side plate; 27. side block; 28. inner strip; 29. ​​spring piece. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] The present invention provides an industrial waste gas purification and treatment equipment, such as Figures 1 to 4 As shown, it includes an exhaust frame 1, and the front side of the exhaust frame 1 is connected to a ventilation pipe 2, and industrial waste gas is introduced into the exhaust frame 1 through the ventilation pipe 2. A plurality of exhaust pipes 3 arranged vertically in parallel are installed on the top of the exhaust frame 1, and the top ends of the plurality of exhaust pipes 3 are connected by a top plate 4. A filter element 5 is inserted into the exhaust pipe 3, and a sealing component is provided at the bottom of the filter element 5, and the sealing component includes a bottom plate 6, and the bottom plate 6 corresponds to the bottom opening of the exhaust pipe 3. After the bottom plate 6 moves down to the inside of the exhaust frame 1, the industrial waste gas inside the exhaust frame 1 enters the exhaust pipe 3, and the filter element 5 is used to absorb and purify toxic substances and particles in the exhaust gas. The top opening of the exhaust pipe 3 discharges the treated gas, and a cover plate 7 is provided on the top of the filter element 5. The diameter of the cover plate 7 is larger than the outer diameter of the exhaust pipe 3, and a handle 8 is connected to the top of the cover plate 7. The cover plate 7 is configured as honeycomb activated carbon. Use handle 8 to insert filter element 5 into the corresponding inner side of exhaust pipe 3. At this time, the blocking component causes bottom plate 6 to block the bottom opening of exhaust pipe 3 until the bottom surface of cover plate 7 is in contact with the top surface of top plate 4. At this time, filter element 5 is correspondingly located inside exhaust pipe 3. After industrial waste gas enters the exhaust frame 1 through vent pipe 2, the blocking component causes bottom plate 6 to move downward inside exhaust frame 1. At this time, bottom plate 6 is separated from the bottom opening of exhaust pipe 3, and industrial waste gas enters the inner side of exhaust pipe 3 through the bottom opening of exhaust pipe 3. Filter element 5 comprehensively purifies and absorbs the industrial waste gas after preliminary filtration until cover plate 7 performs the final absorption of the industrial waste gas, allowing the treated gas to be discharged into the external environment, completing the purification of the industrial waste gas.

[0032] exist Figures 2 to 4In the embodiment, the blocking component further includes a filter plate 9, which is located on top of the bottom plate 6, and the bottom surface of the filter plate 9 is connected to the bottom plate 6 via a vertical rod 10. Two baffles 11 are fixed to the bottom of the inner side of the circumference of the exhaust pipe 3, and the baffles 11 are located between the filter plate 9 and the bottom plate 6. When the bottom plate 6 blocks the bottom opening of the exhaust pipe 3, the top surface of the bottom plate 6 and the bottom surface of the baffles 11 are in contact. When the bottom plate 6 blocks the bottom opening of the exhaust pipe 3 and the filter element 5 is inserted into the exhaust pipe 3, until the bottom end of the filter element 5 contacts the top surface of the filter plate 9, the filter plate 9 is restrained by the filter element 5 to prevent the bottom surface of the cover plate 7 from directly impacting the top surface of the top plate 4, thereby preventing damage to the cover plate 7 due to the impact. After the filter element 5 and the cover plate 7 cooperate to purify the industrial waste gas for a period of time, the blocking component causes the bottom plate 6 to block the bottom opening of the exhaust pipe 3. At this time, the handle 8 is used to pull out the filter element 5 inside the exhaust pipe 3, and the new filter element 5 is reinserted into the exhaust pipe 3 to complete the real-time replacement of the filter element 5. During the replacement of the filter element 5, there is no need to interrupt the purification process of the industrial waste gas, thereby ensuring the continuous effect of the industrial waste gas purification.

[0033] exist Figure 2 、 Figure 5 and Figure 6 In the embodiment, two rotating pipes 12 are horizontally placed side by side and inserted into the exhaust gas frame 1. The two rotating pipes 12 correspond to multiple exhaust pipes 3 respectively. A limiting plate 13 is fixed inside the exhaust gas frame 1 to limit the inner end of the rotating pipe 12. The inner end of the rotating pipe 12 rotates through the bottom of the limiting plate 13. A circular plate 14 is fixed to the inner end of the rotating pipe 12, and the outer side surface of the circular plate 14 fits with the inner side surface of the limiting plate 13. The outer end of the rotating pipe 12 corresponds to the side of the exhaust gas frame 1. An inner groove 15 and an outer groove 16 are provided on the surface of the rotating pipe 12. The inner groove 15 is on the inner side of the exhaust gas frame 1, and the outer groove 16 is on the outer side of the exhaust gas frame 1. A plurality of rotating rings 17 are sleeved on the surface of the rotating pipe 12, and the plurality of rotating rings 17 correspond one-to-one to the bottom openings of the plurality of exhaust pipes 3. The limiting plate 13 uses the circular plate 14 to cooperate with the inner end of the rotating tube 12 to prevent the rotating tube 12 from being directly pulled out from the inside of the exhaust frame 1. When the outer side of the circular plate 14 is tightly fitted with the inner side of the limiting plate 13, the multiple rotating rings 17 on the surface of the rotating tube 12 correspond to the bottom openings of the multiple exhaust pipes 3. At this time, the bottom surface of the bottom plate 6 is fitted with the outer side of the circumference of the rotating ring 17. The surface of the rotating ring 17 is provided with an arc-shaped protrusion 18. The rotating rotating tube 12 is pushed by the arc-shaped protrusion 18 on the surface of the rotating ring 17. The movable base plate 6 moves up and down, and the rotating rotating tube 12 slides on the bottom surface of the base plate 6 using the swivel 17 and the arc-shaped protrusion 18. When the bottom surface of the base plate 6 slides on the surface of the swivel 17, the position of the base plate 6 remains unchanged. When the bottom surface of the base plate 6 slides on the surface of the arc-shaped protrusion 18, the arc-shaped protrusion 18 causes the base plate 6 to move up and down inside the exhaust frame 1. When the highest point of the arc-shaped protrusion 18 is in contact with the bottom surface of the base plate 6, the support of the arc-shaped protrusion 18 on the base plate 6 causes the base plate 6 to block the bottom opening of the exhaust pipe 3.

[0034] exist Figures 5 to 7 In the embodiment, an inner rod 19 is provided inside the rotating tube 12. The inner rod 19 corresponds to the inner surface of the rotating tube 12, and the inner side surfaces of the circumferences of the multiple rotating rings 17 are connected to the inner rod 19 by a connecting rod. An arc-shaped plate 20 is provided outside the outer groove 16 of the rotating tube 12. A collar 21 is sleeved on the surface of the arc-shaped plate 20, and the collar 21 is spirally sleeved on the surface of the rotating tube 12. When the collar 21 is rotated, the rotating collar 21 drives the inner rod 19 to move inside the rotating tube 12 via the arc-shaped plate 20. At this time, the arc-shaped plate 20 moves inside the outer groove 16. The moving inner rod 19 drives the multiple rotating rings 17 to move synchronously via the connecting rod. At this time, the connecting rod slides inside the inner groove 15. The relative distance between the collar 21 and the circular plate 14 is adjusted by rotating the collar 21. When the inner side of the ring 21 fits with the side of the exhaust frame 1, the outer side of the circular plate 14 fits with the inner side of the limiting plate 13. At this time, the limitation of the rotating pipe 12 is completed, preventing the rotating pipe 12 from fluctuating back and forth inside the exhaust frame 1, and preventing the arc-shaped protrusion 18 of the rotating ring 17 from separating from the bottom surface of the bottom plate 6 due to the fluctuation of the rotating pipe 12.

[0035] exist Figure 2 、 Figure 7 and Figure 8 In the embodiment, an arc-shaped frame 22 is fixed to the outer end of the rotating tube 12. A protruding rod 23 is fixed to the side of the exhaust frame 1, extending through the arc-shaped frame 22. Nuts 24 are provided on both sides of the arc-shaped frame 22, and the nuts 24 are screwed onto the surfaces of the protruding rods 23. The arc-shaped frame 22 at the outer end of the rotating tube 12 is movably screwed onto the surfaces of the protruding rods 23. The two nuts 24 cooperate to restrain the arc-shaped frame 22, preventing the rotating tube 12 from fluctuating back and forth inside the exhaust frame 1, further ensuring the restraining effect of the rotating tube 12.

[0036] A clamping head 25 is embedded in the bottom end of the arc frame 22, and the clamping head 25 cooperates with the arc frame 22 to snap into the protruding rod 23. The outer side surface of the clamping head 25 is set to an arc surface. Two opposite side plates 26 are fixed to the bottom of the arc frame 22. Side blocks 27 are fixed on both sides of the clamping head 25. Vertical grooves corresponding to the side blocks 27 are set on the surface of the side plates 26. The vertical grooves have inherent inner strips 28. The side blocks 27 are slidably sleeved on the surface of the inner strips 28. A baffle is connected between the two side plates 26, and a spring piece 29 is connected between the top surface of the baffle and the bottom surface of the clamping head 25. The top end of the clamping head 25 cooperates with the buckling convex rod 23 to prevent the rotating tube 12 from rotating. The elastic force of the spring piece 29 keeps the rotating tube 12 in a stable state. At this time, the filter element 5 can be quickly replaced, ensuring the stability of the rotating tube 12 during the replacement of the filter element 5 and preventing the rotating tube 12 from rotating during the replacement of the filter element 5.

[0037] When the rotating tube 12 rotates, the rotating tube 12 rotates on the surface of the protruding rod 23 using the arc frame 22. The arc frame 22 cooperates with the protruding rod 23 to avoid collision and contact between the arc-shaped protrusions 18 on the surfaces of the two rotating tubes 12.

[0038] The present invention also provides a method for purifying industrial waste gas, referring to Figures 1 to 8 As shown, the method is applied to the industrial waste gas purification treatment equipment as described above, comprising the following steps:

[0039] S1. Use the handle 8 to insert the filter element 5 into the inner side of the exhaust pipe 3. At this time, the rotating ring 17 uses the arc-shaped protrusion 18 to support the bottom plate 6, so that the bottom plate 6 blocks the bottom of the exhaust pipe 3.

[0040] S2. After the industrial waste gas enters the exhaust frame 1 through the vent pipe 2, the rotating pipe 12 is rotated. The rotating rotating pipe 12 drives the rotating ring 17 to rotate by the connecting rod. When the rotating ring 17 drives the arc-shaped protrusion 18 to rotate, the highest point of the arc-shaped protrusion 18 gradually moves away from the bottom plate 6. Under the influence of gravity, the bottom plate 6 moves downward at the bottom end of the exhaust pipe 3 until the bottom plate 6 is separated from the bottom opening of the exhaust pipe 3. At this time, the bottom surface of the filter plate 9 corresponds to the top surface of the baffle 11, and the industrial waste gas enters the inside of the exhaust pipe 3 through the bottom opening of the exhaust pipe 3;

[0041] S3, the filter plate 9 initially filters the industrial waste gas, at which point the filter element 5 performs a comprehensive purification and absorption treatment on the industrial waste gas after the initial filtration, until the cover plate 7 performs the final absorption of the industrial waste gas, allowing the treated gas to be discharged into the external environment;

[0042] S4. Rotate the rotating tube 12 in the opposite direction. After the rotating tube 12 uses the arc-shaped protrusion 18 on the rotating ring 17 to make the bottom plate 6 block the bottom opening of the exhaust pipe 3, use the handle 8 to pull out the filter element 5 inside the exhaust pipe 3 to complete the real-time replacement of the filter element 5.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. An industrial waste gas purification and treatment device, comprising a waste gas frame (1), wherein the front side of the waste gas frame (1) is connected to a vent pipe (2), and the industrial waste gas is introduced into the waste gas frame (1) through the vent pipe (2), and is characterized in that: A plurality of exhaust pipes (3) arranged vertically and in parallel are installed on the top of the exhaust frame (1), and the top ends of the plurality of exhaust pipes (3) are connected by a top plate (4). A filter element (5) is inserted into the exhaust pipe (3), and a blocking component is provided at the bottom of the filter element (5), and the blocking component includes a bottom plate (6), and the bottom plate (6) blocks the bottom opening of the exhaust pipe (3) accordingly. After the bottom plate (6) moves down to the inside of the exhaust frame (1), the industrial waste gas inside the exhaust frame (1) enters the exhaust pipe (3), and the filter element (5) is used to absorb and purify toxic substances and particles in the waste gas. The top opening of the exhaust pipe (3) discharges the treated gas, and a cover plate (7) is provided on the top of the filter element (5). The diameter of the cover plate (7) is larger than the outer diameter of the exhaust pipe (3), and the top of the cover plate (7) is connected to a handle (8), and the cover plate (7) is configured as honeycomb activated carbon.

2. The industrial waste gas purification equipment according to claim 1, characterized in that: The blocking component further comprises a filter plate (9), the filter plate (9) being located on top of the bottom plate (6), and the bottom surface of the filter plate (9) being connected to the bottom plate (6) by means of a vertical rod (10), two baffles (11) being fixed to the bottom of the inner side surface of the circumference of the exhaust pipe (3), and the baffles (11) being located between the filter plate (9) and the bottom plate (6), and when the bottom plate (6) blocks the bottom opening of the exhaust pipe (3), the top surface of the bottom plate (6) is in contact with the bottom surface of the baffles (11).

3. The industrial waste gas purification equipment according to claim 2, characterized in that: Two rotating pipes (12) placed horizontally and in parallel are inserted into the exhaust gas frame (1), and the two rotating pipes (12) correspond to a plurality of exhaust pipes (3) respectively. A limiting plate (13) is fixed inside the exhaust gas frame (1) to limit the inner end of the rotating pipe (12). The inner end of the rotating pipe (12) rotates and passes through the bottom of the limiting plate (13). A circular plate (14) is fixed to the inner end of the rotating pipe (12), and the outer side surface of the circular plate (14) is in contact with the inner side surface of the limiting plate (13). The outer end of the rotating pipe (12) passes through the side surface of the exhaust gas frame (1). The surface of the rotating pipe (12) is provided with an inner groove (15) and an outer groove (16). The inner groove (15) is located on the inner side of the exhaust gas frame (1), and the outer groove (16) is located on the outer side of the exhaust gas frame (1). The surface of the rotating pipe (12) is sleeved with a plurality of rotating rings (17), and the plurality of rotating rings (17) correspond one-to-one to the bottom openings of the plurality of exhaust pipes (3).

4. The industrial waste gas purification equipment according to claim 3, characterized in that: The surface of the rotating ring (17) is provided with an arc-shaped protrusion (18), and the rotating rotating tube (12) uses the arc-shaped protrusion (18) on the surface of the rotating ring (17) to push the bottom plate (6) to move up and down.

5. The industrial waste gas purification equipment according to claim 4, characterized in that: An inner rod (19) is provided inside the rotating tube (12), and the inner rod (19) corresponds to blocking the inside of the rotating tube (12), and the inner side surfaces of the circumferences of the plurality of rotating rings (17) are connected to the inner rod (19) by means of a connecting rod. An arc-shaped plate (20) is provided outside the outer groove (16) of the rotating tube (12), and a collar (21) is sleeved on the surface of the arc-shaped plate (20), and the collar (21) is spirally sleeved on the surface of the rotating tube (12).

6. The industrial waste gas purification equipment according to claim 5, characterized in that: An arc frame (22) is fixed to the outer end of the rotating pipe (12), a protruding rod (23) penetrating the arc frame (22) is fixed to the side of the exhaust frame (1), and nuts (24) are provided on both sides of the arc frame (22), and the nuts (24) are spirally sleeved on the surface of the protruding rod (23).

7. The industrial waste gas purification equipment according to claim 6, characterized in that: A clamping head (25) is embedded in the bottom end of the arc frame (22), and the clamping head (25) and the arc frame (22) cooperate with the clamping protrusion (23). The outer side surface of the clamping head (25) is set as an arc surface. Two opposite side plates (26) are fixed to the bottom of the arc frame (22). Side blocks (27) are fixed on both sides of the clamping head (25). The surface of the side plate (26) is provided with a vertical groove corresponding to the side block (27). The vertical groove has an inherent inner strip (28). The side block (27) is slidably sleeved on the surface of the inner strip (28). A baffle is connected between the two side plates (26), and a spring piece (29) is connected between the top surface of the baffle and the bottom surface of the clamping head (25).

8. A method for purifying industrial waste gas, characterized in that: The industrial waste gas purification equipment as claimed in claim 7 comprises the following steps: S1. Use the handle (8) to insert the filter element (5) into the inner side of the exhaust pipe (3). At this time, the rotating ring (17) uses the arc-shaped protrusion (18) to support the bottom plate (6), so that the bottom plate (6) blocks the bottom of the exhaust pipe (3). S2. After the industrial waste gas enters the exhaust frame (1) through the vent pipe (2), the rotating pipe (12) is rotated. The rotating pipe (12) drives the rotating ring (17) to rotate by using the connecting rod. When the rotating ring (17) drives the arc-shaped protrusion (18) to rotate, the highest point of the arc-shaped protrusion (18) gradually moves away from the bottom plate (6). Under the influence of gravity, the bottom plate (6) moves downward at the bottom end of the exhaust pipe (3) until the bottom plate (6) is separated from the bottom opening of the exhaust pipe (3). At this time, the bottom surface of the filter plate (9) corresponds to the top surface of the baffle (11), and the industrial waste gas enters the inner side of the exhaust pipe (3) through the bottom opening of the exhaust pipe (3); S3, the filter plate (9) preliminarily filters the industrial waste gas, at which point the filter element (5) comprehensively purifies and absorbs the preliminarily filtered industrial waste gas, until the cover plate (7) performs the final absorption of the industrial waste gas, allowing the treated gas to be discharged into the external environment; S4, the rotating tube (12) is rotated in the reverse direction. After the rotating tube (12) uses the arc-shaped protrusion (18) on the rotating ring (17) to make the bottom plate (6) block the bottom opening of the exhaust pipe (3), the filter element (5) inside the exhaust pipe (3) is pulled out using the handle (8), completing the real-time replacement of the filter element (5).

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