Industrial waste gas purification treatment equipment

Abstract

The invention relates to the technical field of waste gas treatment equipment, and provides industrial waste gas purification treatment equipment which comprises a gas-liquid collision cavity, rotational flow liquid film mechanisms, a spraying cavity and a gas-liquid exchange mechanism. The gas-liquid collision cavity is arranged at the top of a tower body and communicates with an exhaust pipe and a liquid inlet pipe, and the rotational flow liquid film mechanisms are arranged in the gas-liquid collision cavity; the exhaust pipe and the liquid inlet pipe are both communicated with the rotational flow liquid membrane mechanism, absorption liquid can be conveyed into the rotational flow liquid membrane mechanism through the liquid inlet pipe, waste gas can enter the rotational flow liquid membrane mechanism in the gas-liquid collision cavity and then is discharged out of the tower body through the exhaust pipe, and the rotational flow liquid membrane mechanism is used for enabling the waste gas to penetrate through a liquid membrane stably formed when the absorption liquid flows. Waste gas can enter the gas-liquid collision cavity through a plurality of gas-liquid exchange mechanisms arranged between the spraying cavity and the gas-liquid collision cavity, the lower part of the spraying cavity is communicated with the precipitation cavity, and through the technical scheme, the problem that the gas-liquid contact efficiency is limited due to the fixed structure of the filler in the packed tower in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment equipment, in particular, relates to an industrial waste gas purification treatment equipment. BACKGROUND

[0002] A large amount of waste gas is generated in many links of industrial production, which contains dust and harmful substances. The waste gas is usually treated by a packed tower or a spray tower. In the packed tower or the spray tower, the absorption liquid for treating the waste gas is sprayed in the tower, and the waste gas is introduced into the bottom of the tower. The waste gas moves upward and contacts the downwardly sprayed absorption liquid for waste gas treatment. On the one hand, the harmful dust in the gas adheres to the liquid, and on the other hand, the components in the absorption liquid rapidly react with the harmful components in the waste gas, thereby reducing the harmful dust and harmful components in the waste gas.

[0003] The principle of the packed tower is to fill the tower with a specific shape of packing, spray the absorption liquid on the packing, and form a liquid film on the surface of the packing. The absorption liquid forms droplets and liquid filaments when leaving the packing. In this process, the waste gas flows on the surface of the packing and contacts the absorption liquid. When the waste gas passes through the gap between the packings, it may pass through the thin film formed due to the surface tension of the liquid, forming the collision or cross flow of gas and liquid. In this process, the specific surface area of the liquid is larger, which can better contact the waste gas. However, the absorption liquid flowing in the packed tower is mostly attached to the surface of the packing, and the absorption liquid stays on the surface of the packing, which causes the problem of poor efficiency of treating part of the waste gas. Since the geometric structure of the traditional packing is relatively fixed, the gas-liquid flow channel is largely fixed, which cannot form more effective liquid film surfaces, so that the efficiency of gas-liquid contact is easily bottlenecked. The waste gas can directly pass through the liquid film, and the effective updating opportunity of the liquid film is limited, which makes it difficult to further improve the waste gas treatment efficiency of the packed tower. SUMMARY

[0004] The present application provides an industrial waste gas purification treatment equipment to solve the problem of limited gas-liquid contact efficiency caused by the fixed structure of the packing in the packed tower in the prior art.

[0005] The technical solution of the present application is as follows: An industrial waste gas purification treatment equipment, comprising a tower body, an exhaust pipe and a liquid inlet pipe are communicated at the top of the tower body, a gas inlet pipe and a liquid outlet pipe are communicated at the bottom of the tower body, further comprising a gas-liquid collision chamber, a cyclone liquid film mechanism, a spraying chamber and a gas-liquid exchange mechanism, the gas-liquid collision chamber is arranged at the top of the tower body and is communicated with the exhaust pipe and the liquid inlet pipe, a plurality of cyclone liquid film mechanisms are arranged inside the gas-liquid collision chamber, the exhaust pipe and the liquid inlet pipe are communicated with the cyclone liquid film mechanisms, the absorbing liquid can be transported into the cyclone liquid film mechanism through the liquid inlet pipe, the waste gas can enter into the cyclone liquid film mechanism in the gas-liquid collision chamber and then be discharged from the tower body through the exhaust pipe, the cyclone liquid film mechanism is used for enabling the waste gas to flow through the liquid film formed stably when the waste gas flows through the absorbing liquid, the spraying chamber is arranged below the gas-liquid collision chamber in the tower body, the gas inlet pipe extends into the spraying chamber, the waste gas can enter into the gas-liquid collision chamber through a plurality of gas-liquid exchange mechanisms arranged between the spraying chamber and the gas-liquid collision chamber, a sedimentation chamber is arranged below the spraying chamber and is communicated with the liquid outlet pipe.

[0006] A plurality of driving cylinders are fixedly installed inside the tower body, a plurality of partition plates are fixedly connected to the output ends of the driving cylinders, a plurality of gas-liquid exchange mechanisms are arranged on the partition plates, the partition plates are rotationally connected to the bottoms of the cyclone liquid film mechanisms, and the output ends of the driving cylinders can drive the partition plates to longitudinally slide in the tower body.

[0007] A plurality of exhaust ports are partially arranged in the gas inlet pipe in the spraying chamber, the liquid level of the absorbing liquid in the spraying chamber is higher than the gas inlet pipe, the absorbing liquid can flow to the partition plates through the cyclone liquid film mechanisms and then flow into the spraying chamber through the gas-liquid exchange mechanisms.

[0008] The gas-liquid exchange mechanism comprises a liquid outlet groove and a sealing cover, the liquid outlet groove is arranged in the partition plate and is provided with a mesh structure at the bottom, and the sealing cover is slidingly connected in the liquid outlet groove, the absorbing liquid on the partition plate can enter into the liquid outlet groove through the gap between the sealing cover and the liquid outlet groove and then be sprayed in the spraying chamber through the mesh structure, and the waste gas enters into the gas-liquid collision chamber through the mesh structure.

[0009] The cyclone liquid film mechanism comprises an upper cylinder, a flow guide cone, a lower cylinder, a first flow guide strip, a second flow guide strip and a flow guide rod, the liquid inlet pipe and the exhaust pipe are communicated with the upper cylinder, a plurality of first flow guide strips are circumferentially connected to the side of the lower part of the upper cylinder, the flow guide cone is fixedly connected inside the upper cylinder, the lower cylinder is rotationally connected to the partition plate, a plurality of second flow guide strips are circumferentially connected to the side close to the upper cylinder, the first flow guide strips and the second flow guide strips are arranged in an interlaced manner, the flow guide rod is fixedly connected inside the lower cylinder and is threadedly connected with the flow guide cone.

[0010] The upper cylinder is provided with an airflow cone pipe, an annular cavity and a flow guide strip, the airflow cone pipe is communicated with the exhaust pipe, the flow guide cone is arranged in the airflow cone pipe, the exhaust gas enters the exhaust pipe through the gap between the flow guide cone and the inner wall of the airflow cone pipe, the annular cavity is arranged between the airflow cone pipe and the upper cylinder, the annular cavity is communicated with the liquid inlet pipe, the airflow cone pipe and the upper cylinder are connected with the flow guide strip one, the absorbing liquid in the annular cavity can flow to the flow guide strip one, the airflow cone pipe is provided with the flow equalization piece, so that the absorbing liquid in the annular cavity can flow to the plurality of flow guide strips one through the flow equalization piece.

[0011] The flow guide strip one and the flow guide strip two are spirally twisted, and a gap is left between the flow guide strip one and the flow guide strip two, so that the absorbing liquid flowing on the flow guide strip one can flow on the flow guide strip two, a plurality of strip-shaped protrusions are arranged on the flow guide strip one and the flow guide strip two, and the strip-shaped protrusions on the flow guide strip one and the flow guide strip two are close to each other, so that the absorbing liquid can flow between the adjacent strip-shaped protrusions to form a liquid film, when the exhaust gas in the gas-liquid collision cavity enters the airflow cone pipe through the gap between the flow guide strip one and the flow guide strip two, the exhaust gas collides with the film formed by the absorbing liquid, so that the gas-liquid contact rate is improved.

[0012] When the output end of the driving cylinder pushes the partition plate to move towards the upper cylinder, the lower cylinder can be pushed to move towards the upper cylinder, at this time, the flow guide rod rotates in the flow guide cone along the thread, the thread on the flow guide rod has the same thread degree as the flow guide strip one, and the distance between the flow guide strip one and the flow guide strip two remains unchanged when the lower cylinder spirally rotates to approach the upper cylinder.

[0013] The working principle and beneficial effects of the present application are as follows: 1. In the present application, the flow path of the absorbing liquid is improved by combining the exhaust of the exhaust gas with the input of the absorbing liquid through the setting of the cyclone liquid film mechanism, the absorbing liquid is easily formed into a film by the liquid surface tension through the formation of similar flow guide structures, the specific surface area of the absorbing liquid forming the film is larger when the exhaust gas is discharged and collides with the absorbing liquid, the contact efficiency with the exhaust gas is higher, and the liquid film is stable and continuously flows, and is not easy to produce dead zones and accumulation. 2. In the present application, the exhaust gas flows in two cavities through the setting of the gas-liquid exchange mechanism, in this process, the absorbing liquid is sprayed and contacted with the exhaust gas, and the exhaust gas collides with the absorbing liquid when flowing, thereby further improving the contact efficiency between the exhaust gas and the absorbing liquid. 3、The present application sets the cyclone liquid film mechanism, changes the gas-liquid flow path, makes the waste gas impact with the absorption liquid, the specific surface area of the absorption liquid contacting with the waste gas is larger, the contact efficiency is improved, sets the gas-liquid exchange mechanism, realizes the spray dust removal of the waste gas by the absorption liquid, and also makes the waste gas flow after impacting with the absorption liquid, through the multi-stage and dynamic gas-liquid contact mechanism, improves the specific surface area of the absorption liquid, and also improves the gas-liquid contact efficiency by the effective impact of the absorption liquid and the waste gas. BRIEF DESCRIPTION OF DRAWINGS

[0014] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0015] Figure 1 It is the overall structure schematic diagram of the present application; Figure 2 It is the internal section structure schematic diagram of the tower body of the present application; Figure 3 It is the internal section structure schematic diagram of the cooperation of the partition plate and the cyclone liquid film mechanism of the present application; Figure 4 It is the section structure schematic diagram of the cooperation of the exhaust pipe, the liquid inlet pipe and the cyclone liquid film mechanism of the present application; Figure 5 It is the section structure schematic diagram of the cyclone liquid film mechanism of the present application; Figure 6 It is the section structure schematic diagram of the cooperation of the upper cylinder and the lower cylinder of the present application; Figure 7 It is the internal section structure schematic diagram of the upper cylinder of the present application; Figure 8 It is the local internal section structure schematic diagram of the cooperation of the flow guide cone and the airflow cone tube of the present application; Figure 9 It is the local structure schematic diagram of the cooperation of the plurality of flow guide strips of the present application.

[0016] In the figure: 1, tower body; 2, exhaust pipe; 3, liquid inlet pipe; 4, gas inlet pipe; 5, liquid outlet pipe; 6, gas-liquid impact chamber; 7, spray chamber; 8, sedimentation chamber; 9, driving cylinder; 10, partition plate; 11, exhaust port; 12, liquid discharge groove; 13, sealing cover; 14, upper cylinder; 15, flow guide strip one; 16, flow guide cone; 17, lower cylinder; 18, flow guide strip two; 19, flow guide rod; 20, airflow cone tube; 21, annular cavity; 22, flow equalizing piece; 23, strip-shaped protrusion. DETAILED DESCRIPTION

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1-9 As shown, this embodiment proposes an industrial waste gas purification and treatment device, including a tower body 1. The top of the tower body 1 is connected to an exhaust pipe 2 and a liquid inlet pipe 3, and the bottom of the tower body 1 is connected to an air inlet pipe 4 and a liquid outlet pipe 5. It also includes a gas-liquid collision chamber 6, a swirling liquid film mechanism, a spray chamber 7, and a gas-liquid exchange mechanism. The gas-liquid collision chamber 6 is located at the top of the tower body 1 and is connected to the exhaust pipe 2 and the liquid inlet pipe 3. Multiple swirling liquid film mechanisms are installed inside. The exhaust pipe 2 and the liquid inlet pipe 3 are both connected to the swirling liquid film mechanism, allowing the absorbent liquid to... The waste gas is transported to the swirling liquid film mechanism through the inlet pipe 3. After entering the swirling liquid film mechanism in the gas-liquid collision chamber 6, the waste gas is discharged from the tower body 1 through the exhaust pipe 2. The swirling liquid film mechanism allows the waste gas to pass through the liquid film stably formed when the absorbent flows. The spray chamber 7 is located below the gas-liquid collision chamber 6 in the tower body 1. The inlet pipe 4 extends into the spray chamber 7. The waste gas can enter the gas-liquid collision chamber 6 through multiple gas-liquid exchange mechanisms set between the spray chamber 7 and the gas-liquid collision chamber 6. The spray chamber 7 is connected to the bottom of the gas-liquid collision chamber 6. The system is equipped with a sedimentation chamber 8, and a drain pipe 5 is connected to the sedimentation chamber 8. In this application, the absorbent flows from top to bottom and impacts the airflow in the opposite direction. The exhaust gas is discharged into the absorbent for the first gas-liquid contact. Then, the exhaust gas moves upward and makes a second contact with the absorbent flowing down in the drain groove 12. When the exhaust gas enters the gas-liquid collision chamber 6 through the drain groove 12, it makes a third contact. When it enters the exhaust pipe 2 between the first guide bar 15 and the second guide bar 18, it makes a fourth contact. Multiple gas-liquid collisions can improve the exhaust gas treatment efficiency. In this application, a stable liquid film is formed in the swirling liquid film mechanism. The exhaust gas passes through the liquid film and is then discharged. In this process, the contact between the exhaust gas and the absorbent is more thorough, and the stable flow of the liquid film also facilitates the cleaning of accumulated dust. Compared with the traditional fixed structure packing that increases the flow area of ​​the absorbent, the liquid film in this application flows stably, and the exhaust gas can also collide with the absorbent multiple times when flowing in each chamber, resulting in higher gas-liquid contact efficiency at the same absorbent flow speed.

[0019] like Figures 1-3As shown, multiple drive cylinders 9 are fixedly installed inside the tower body 1. A partition plate 10 is fixedly connected to the output end of the multiple drive cylinders 9. Multiple gas-liquid exchange mechanisms are set on the partition plate 10. The partition plate 10 is rotatably connected to the bottom of the swirling liquid film mechanism. The output end of the drive cylinder 9 can drive the partition plate 10 to slide longitudinally in the tower body 1. The gas-liquid collision chamber 6 and the spray chamber 7 are separated by the partition plate 10. The edge of the partition plate 10 is provided with a barrier so that the absorbent liquid accumulated on the partition plate 10 can only flow into the spray chamber 7 through the drain groove 12.

[0020] like Figures 1-4 As shown, the air inlet pipe 4 has multiple exhaust ports 11 partially opened in the spray chamber 7. The liquid level of the absorbent in the spray chamber 7 is higher than that of the air inlet pipe 4. The absorbent can flow to the partition plate 10 through the swirling liquid film mechanism and flow into the spray chamber 7 through the gas-liquid exchange mechanism. The exhaust ports 11 are opened on the lower side of the air inlet pipe 4. The exhaust gas is directly discharged into the absorbent at the bottom of the spray chamber 7 for the first contact. At the same time, the absorbent flowing down in the drain groove 12 forms a spray pattern and contacts the exhaust gas, initially separating the dust in the exhaust gas. The dust gradually settles in the sedimentation chamber 8 and can be discharged through the drain pipe 5.

[0021] like Figure 3 As shown, the gas-liquid collision chamber 6 in this embodiment is equipped with multiple swirling liquid film mechanisms, and the exhaust pipes 4 on the adjacent upper cylinders 14 are connected to each other, allowing for uniform gas extraction. like Figures 2-3 As shown, the gas-liquid exchange mechanism includes a drain groove 12 and a sealing cover 13. The drain groove 12 is formed in the partition plate 10, and its bottom is configured with a mesh structure. The sealing cover 13 is slidably connected in the drain groove 12. The absorbent liquid on the partition plate 10 can enter the drain groove 12 through the gap between the sealing cover 13 and the drain groove 12, and then be sprayed into the spray chamber 7 through the mesh structure. The exhaust gas enters the gas-liquid collision chamber 6 through the mesh structure. In another embodiment, the drain groove 12 may be partially set in the spray chamber 7. The large-area spray head ensures that the absorbent liquid entering the spray chamber 7 is sprayed evenly. At the same time, a spring can be installed between the sealing cover 13 and the drain groove 12. When the air inlet pipe 4 delivers waste gas and the exhaust pipe 2 draws in the treated waste gas, the air pressure can drive the sealing cover 13 to slide, creating a gap between the sealing cover 13 and the drain groove 12. The waste gas and absorbent liquid flow in the gap, resulting in gas-liquid collision. Compared with the contact between the waste gas and the liquid film flowing on the surface of the packing, the contact of gas-liquid collision is more thorough, resulting in higher treatment efficiency.

[0022] like Figures 2-8As shown, the swirling liquid film mechanism includes an upper cylinder 14, a guide cone 16, a lower cylinder 17, guide strips 15 and 18, and a guide rod 19. The inlet pipe 3 and the outlet pipe 2 are both connected to the upper cylinder 14. Multiple guide strips 15 are circumferentially connected to the lower side of the upper cylinder 14. The guide cone 16 is fixedly connected inside the upper cylinder 14. The lower cylinder 17 is rotatably connected to the partition plate 10. Multiple guide strips 18 are circumferentially connected to the side near the upper cylinder 14. The guide strips 15 and 18 are staggered, guiding the liquid... Rod 19 is fixedly connected inside the lower cylinder 17 and threadedly connected to the guide cone 16. The upper cylinder 14 is equipped with an airflow cone 20, an annular cavity 21, and a flow equalization plate 22. The airflow cone 20 is connected to the exhaust pipe 2. The guide cone 16 is located inside the airflow cone 20. Exhaust gas enters the exhaust pipe 2 through the gap between the guide cone 16 and the inner wall of the airflow cone 20. An annular cavity 21 is formed between the airflow cone 20 and the upper cylinder 14, and the annular cavity 21 is connected to the liquid inlet pipe 3. Both the airflow cone 20 and the upper cylinder 14 are connected to the guide strip 15. Next, the absorbent liquid in the annular cavity 21 can flow onto the guide strip 15. A flow equalization plate 22 is provided in the airflow cone 20, allowing the absorbent liquid in the annular cavity 21 to flow onto multiple guide strips 15 through the flow equalization plate 22. In this application, both the inlet pipe 3 and the outlet pipe 2 are provided with multiple branches that connect to multiple upper cylinders 14. After the inlet pipe 3 discharges the absorbent liquid into the annular cavity 21, it contacts multiple flow equalization plates, causing the absorbent liquid to flow evenly onto multiple guide strips 15 within the annular cavity 21. Gas flows through the guide strips 15 and 18. The gas enters the upper cylinder 14 through the gap between the gas cone and the guide cone 16 and the guide rod 19. The airflow carries some of the absorbent liquid to splash onto the guide cone 16 and the guide rod 19, and flows through the lower cylinder 17 to the partition plate 10. The gas enters the exhaust pipe 2 through the gap between the gas cone and the guide cone 16. The guide cone 16 has a protruding edge on its outer periphery. When the exhaust gas carries the absorbent liquid along the guide cone 16, the exhaust gas quickly changes direction. Centrifugal force can separate the absorbent liquid from the airflow, preventing the exhaust gas from carrying the absorbent liquid into the exhaust pipe 2.

[0023] like Figures 4-9As shown, both guide strip 15 and guide strip 2 18 are spirally twisted, and a gap is left between them. When the absorbent liquid flows on guide strip 15, it can flow onto guide strip 2 18. Both guide strip 15 and guide strip 2 18 are provided with multiple strip-shaped protrusions 23, and the strip-shaped protrusions 23 on guide strip 15 and guide strip 2 18 are close to each other. The absorbent liquid can flow between adjacent strip-shaped protrusions 23 to form a liquid film. When the waste gas in the gas-liquid collision chamber 6 enters the airflow cone through the gap between guide strip 15 and guide strip 2 18, The waste gas collides with the thin film formed by the absorbent liquid, thus achieving a better gas-liquid contact rate. Since the first guide strip 15 and the second guide strip 18 are in a spiral twisted shape, after the absorbent liquid flows onto the first guide strip 15, it can flow onto the second guide strip 18 near the bottom under the action of gravity. At the same time, due to the setting of the strip-shaped protrusion 23, the distance between the first guide strip 15 and the second guide strip 18 is relatively close, and a liquid film can be formed when the absorbent liquid flows. The gas enters the airflow cone tube 20 through the gap between the first guide strip 15 and the second guide strip 18, so that the waste gas collides with the liquid film, and the gas-liquid contact is more sufficient. The upper cylinder 14 has two layers of guide strip 15, and the lower cylinder 17 also has two layers of guide strip 18. The inner layer guide strip 15 and the inner layer guide strip 18 form a cylindrical shape and are arranged alternately. The outer layer guide strip 15 and the outer layer guide strip 18 are arranged in the same way. The inner layer guide strip 15 and the outer layer guide strip 15 are close to each other and a liquid film formed by the flow of absorbent liquid will also be generated between them.

[0024] like Figures 7-8 As shown, multiple flow equalization plates 22 are arranged in a spiral. Some flow equalization plates 22 are connected to the inner wall of the upper cylinder 14, and the other parts are connected to the airflow cone tube 20. The liquid is absorbed and flows through the flow equalization plates 22 and the gaps between the flow equalization plates 22, so as to achieve the effect of uniform flow in the annular cavity 21.

[0025] like Figures 6-9 As shown, when the output end of the drive cylinder 9 pushes the partition plate 10 to move upward into the upper cylinder 14, it can push the lower cylinder 17 to move upward into the upper cylinder 14. At this time, the guide rod 19 rotates along the thread in the guide cone 16. The thread on the guide rod 19 has the same curvature as the thread of the first guide bar 15. When the lower cylinder 17 spirals closer to the upper cylinder 14, the distance between the first guide bar 15 and the second guide bar 18 remains unchanged. By pushing the lower cylinder 17, the guide rod 19 moves into the guide cone 16. Due to the effect of the thread, the lower cylinder 17 rotates spirally. When rotating, the first guide bar 15 gradually comes into contact with the lower cylinder 17, which can squeeze the dust deposits that may accumulate on the lower cylinder 17, making them loose and easy to be flushed out by the subsequent absorbent liquid.

[0026] In this embodiment, the air inlet pipe 4 delivers exhaust gas to the spray chamber 7. The exhaust gas is discharged in the absorbent liquid through the exhaust port 11. The air pressure pushes the sealing cover 13 to open. The absorbent liquid on the partition plate 10 flows into the spray chamber 7 through the drain groove 12. The exhaust gas flows into the gas-liquid collision chamber 6 through the drain groove 12. At the same time, the exhaust gas collides with the absorbent liquid. The exhaust pipe 2 draws the exhaust gas to the outside. The exhaust gas enters the airflow cone tube 20 through the gap between the first guide strip 15 and the second guide strip 18. The liquid inlet pipe 3 delivers absorbent liquid into the annular cavity 21. The absorbent liquid contacts the flow equalization plate 22 and flows down along the multiple first guide strips 15. The absorbent liquid on the first guide strip 15 also flows onto the second guide strip 18. This process forms a liquid film. The exhaust gas impacts the liquid film and enters the airflow cone tube 20 for discharge. The absorbent liquid impacted by the exhaust gas contacts the guide rod 19 and the guide cone 16 and flows onto the partition plate 10 for further exhaust gas treatment.

[0027] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An industrial waste gas purification and treatment device, comprising a tower body (1), wherein an exhaust pipe (2) and a liquid inlet pipe (3) are connected to the top of the tower body (1), and an air inlet pipe (4) and a liquid outlet pipe (5) are connected to the bottom of the tower body (1), characterized in that, Also includes: The gas-liquid collision chamber (6) is located at the top of the tower body (1) and is connected to the exhaust pipe (2) and the liquid inlet pipe (3). Multiple swirling liquid film mechanisms are installed inside. The exhaust pipe (2) and the liquid inlet pipe (3) are both connected to the swirling liquid film mechanism. The absorbent liquid can be transported to the swirling liquid film mechanism through the liquid inlet pipe (3). The waste gas can enter the swirling liquid film mechanism in the gas-liquid collision chamber (6) and then be discharged from the tower body (1) through the exhaust pipe (2). The swirling liquid film mechanism is used to allow the waste gas to pass through the liquid film that is stably formed when the absorbent liquid flows. A spray chamber (7) is opened in the tower body (1) below the gas-liquid collision chamber (6). The air inlet pipe (4) extends into the spray chamber (7). The exhaust gas enters the gas-liquid collision chamber (6) through multiple gas-liquid exchange mechanisms set between the spray chamber (7) and the gas-liquid collision chamber (6). A sedimentation chamber (8) is connected below the spray chamber (7). The drain pipe (5) is connected to the sedimentation chamber (8).

2. The industrial waste gas purification and treatment equipment according to claim 1, characterized in that, Multiple drive cylinders (9) are fixedly installed inside the tower body (1). A partition plate (10) is fixedly connected to the output end of the multiple drive cylinders (9). Multiple gas-liquid exchange mechanisms are set on the partition plate (10). The partition plate (10) is rotatably connected to the bottom of the swirling liquid film mechanism. The output end of the drive cylinder (9) can drive the partition plate (10) to slide longitudinally in the tower body (1).

3. The industrial waste gas purification and treatment equipment according to claim 2, characterized in that, The air inlet pipe (4) has multiple exhaust ports (11) partially opened in the spray chamber (7). The liquid level of the absorbent in the spray chamber (7) is higher than that of the air inlet pipe (4). The absorbent can flow to the partition plate (10) through the swirling liquid film mechanism and flow into the spray chamber (7) through the gas-liquid exchange mechanism.

4. The industrial waste gas purification and treatment equipment according to claim 3, characterized in that, The gas-liquid exchange mechanism includes: A drainage groove (12) is formed in the partition plate (10), and the bottom is set as a mesh structure; The sealing cap (13) is slidably connected in the drain groove (12). The absorbent liquid on the partition plate (10) can enter the drain groove (12) through the gap between the sealing cap (13) and the drain groove (12), and then be sprayed into the spray chamber (7) through the mesh structure. The exhaust gas enters the gas-liquid collision chamber (6) through the mesh structure.

5. The industrial waste gas purification and treatment equipment according to claim 2, characterized in that, The swirling liquid film mechanism includes: The upper cylinder (14) is connected to the liquid inlet pipe (3) and the exhaust pipe (2). The lower side of the upper cylinder (14) is connected with multiple guide strips (15). The guide cone (16) is fixedly connected inside the upper cylinder (14); The lower cylinder (17) is rotatably connected to the partition plate (10), and a plurality of guide strips (18) are circumferentially connected on the side near the upper cylinder (14). The guide strips (15) and the guide strips (18) are staggered. The guide rod (19) is fixedly connected inside the lower cylinder (17) and threadedly connected to the guide cone (16).

6. The industrial waste gas purification and treatment equipment according to claim 5, characterized in that, The upper cylinder (14) is provided with: The airflow cone (20) is connected to the exhaust pipe (2). The guide cone (16) is disposed inside the airflow cone (20). The exhaust gas enters the exhaust pipe (2) through the gap between the guide cone (16) and the inner wall of the airflow cone (20). An annular cavity (21) is set between the airflow cone (20) and the upper cylinder (14). The annular cavity (21) is connected to the liquid inlet pipe (3). Both the airflow cone (20) and the upper cylinder (14) are connected to the first guide strip (15). The absorbent in the annular cavity (21) can flow onto the first guide strip (15). The airflow cone (20) is provided with a flow equalization plate (22) so that the absorbent in the annular cavity (21) can flow through the flow equalization plate (22) to the multiple flow guide strips (15).

7. The industrial waste gas purification and treatment equipment according to claim 6, characterized in that, Both the first guide strip (15) and the second guide strip (18) are spirally twisted, and there is a gap between the first guide strip (15) and the second guide strip (18) so that the absorbent liquid can flow onto the second guide strip (18) when it flows on the first guide strip (15).

8. The industrial waste gas purification and treatment equipment according to claim 7, characterized in that, Both the first guide strip (15) and the second guide strip (18) are provided with multiple strip-shaped protrusions (23), and the strip-shaped protrusions (23) on the first guide strip (15) and the second guide strip (18) are close to each other.

9. The industrial waste gas purification and treatment equipment according to claim 8, characterized in that, When the output end of the drive cylinder (9) pushes the partition plate (10) to move toward the upper cylinder (14), it can push the lower cylinder (17) to move toward the upper cylinder (14).

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