An environmentally friendly chemical waste gas absorption tower

Abstract

The present invention relates to the technical field of waste gas treatment, and discloses an environmentally friendly chemical waste gas absorption tower, including a base, an air intake mechanism, a spray mechanism, and a pollution collection mechanism; a main body is fixedly arranged on the top of the base, the main body is arranged in a cylindrical shape, a first filter layer and a second filter layer are fixedly arranged inside the main body, the first filter layer is arranged in parallel with the second filter layer, the first filter layer and the second filter layer are both arranged perpendicular to the axis of the main body, and the air intake mechanism is arranged on the outer side wall of the main body. The environmentally friendly chemical waste gas absorption tower of the present invention is provided with a spray mechanism, so that the treatment liquid inside the liquid storage cylinder flows into the circulation cavity evenly through the circulation holes on the side wall of the circulation cylinder, and then is sprayed out from the spiral spray hole at the connection between the liquid storage cylinder and the fixed pipe in the opposite direction to the exhaust gas spraying, thereby fully increasing the contact area and reaction time of the treatment liquid and the exhaust gas, and effectively improving the reaction effect of the treatment liquid and the exhaust gas.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to an environmentally friendly chemical waste gas absorption tower. Background Art

[0002] Chemical waste gas absorption is an important environmental protection technology used to treat and reduce harmful waste gases generated during chemical production. Before starting any waste gas treatment, you must first understand the composition, concentration, temperature and other parameters of the waste gas. This will help to select appropriate absorbents and treatment methods. According to the nature of the waste gas, select one or more suitable absorbents. Commonly used absorbents include water, alkali solution, organic solvents, etc.

[0003] Existing waste gas absorption towers often use the spraying method to absorb and treat waste gas, but the treatment liquid is difficult to fully react with the waste gas in the absorption tower, which affects the waste gas treatment effect. In addition, the sewage and solid impurities generated during the waste gas treatment process are difficult to collect and treat. If they are directly discharged to the outside, they are easy to pollute the environment. Therefore, an environmentally friendly chemical waste gas absorption tower is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem that the existing waste gas absorption tower often adopts the spraying method to absorb and treat the waste gas, but the treatment liquid is difficult to fully react with the waste gas in the absorption tower, which affects the waste gas treatment effect, and the sewage and solid impurities generated in the waste gas treatment process are difficult to collect and treat. If they are directly discharged to the outside, they are easy to pollute the environment. The present invention provides an environmentally friendly chemical waste gas absorption tower.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An environmentally friendly chemical waste gas absorption tower comprises a base, an air intake mechanism, a spray mechanism and a pollutant collection mechanism;

[0007] A main body is fixedly arranged on the top of the base, and the main body is arranged in a cylindrical shape. A first filter layer and a second filter layer are fixedly arranged inside the main body, and the first filter layer is arranged in parallel with the second filter layer, and the first filter layer and the second filter layer are both arranged perpendicular to the axis of the main body. The air intake mechanism is arranged on the outer side wall of the main body, and the spray mechanism is connected with the output end pipeline of the air intake mechanism, and the spray mechanism is arranged on the top of the first filter layer. The dirt collecting mechanism is arranged between the first filter layer and the second filter layer, and the bottom pipeline of the left side wall of the main body is connected with an exhaust pipe, and the input end of the exhaust pipe is located at the lower side of the second filter layer. An inclined platform is fixedly arranged on the inner bottom of the main body, a sewage trough is provided at the bottom of the inclined platform, a liquid outlet is provided at the bottom of the sewage trough, and a valve is provided at the bottom of the liquid outlet. A plurality of brackets are fixedly arranged at the bottom of the base. When in use, the waste gas and the treated liquid are transported into the interior of the main body through the air intake mechanism, and then the waste gas and the treated liquid are atomized and sprayed out through the spray mechanism. The liquid after the reaction is filtered through the first filter layer and the second filter layer and then flows into the sewage tank at the bottom of the main body through the inclined platform. The harmless gas after treatment is discharged along the exhaust pipe. During the treatment, the impurities filtered out from the surface of the first filter layer and the second filter layer can be collected by the pollution collection mechanism for centralized treatment.

[0008] Further, the air intake mechanism includes an input pipe, the output end of the input pipe penetrates the side wall of the main body and extends to the inside of the main body. The input end pipeline of the input pipe is connected to the outlet pipe, the input end of the outlet pipe is connected to the output end pipeline of the high-pressure air pump, the high-pressure air pump is fixedly arranged on the top of the main body, the input end pipeline of the high-pressure air pump is connected to the intake pipe, and the input end of the intake pipe is connected to the pipeline of the exhaust gas generating mechanism. During the treatment, the exhaust gas is compressed by the high-pressure air pump, and then the exhaust gas flows into the input pipe along the outlet pipe and finally enters the inside of the main body.

[0009] Further, the lower input end pipeline of the input pipe is connected with a liquid inlet pipe, the input end pipeline of the liquid inlet pipe is connected with a treatment liquid output pipe, the input end pipeline of the treatment liquid output pipe is connected with a high-pressure liquid pump, the high-pressure liquid pump is fixedly arranged on the outer side wall of the main body, the input end pipeline of the high-pressure liquid pump is connected with a treatment liquid input pipe, the input end pipeline of the treatment liquid input pipe is connected with a treatment liquid storage tank, and the input pipe, the liquid inlet pipe, the air outlet pipe, the air inlet pipe, the treatment liquid output pipe and the end connection of the treatment liquid input pipe are all provided with flange interfaces. While the waste gas is input, the treatment liquid is pumped into the treatment liquid output pipe by the high-pressure liquid pump, and then flows into the inner wall of the input pipe through the liquid inlet pipe.

[0010] Furthermore, an air inlet is provided inside the input pipe, a tapered portion is provided at the output end of the air inlet, a spiral pipe is provided on the inner wall of the input pipe, the spiral pipe is arranged around the air inlet, the input end of the spiral pipe is connected to the output end pipeline of the liquid inlet pipe, and the output end of the spiral pipe is connected to the input end pipeline of the spray mechanism. After the exhaust gas enters the input pipe, it flows along the air inlet, and finally flows out through the tapered portion under pressure. After the treatment liquid flows into the input pipe, it enters the spiral pipe. While the exhaust gas flows in the spiral pipe, the temperature of the exhaust gas can be reduced to avoid excessively high temperature of the exhaust gas and reduced reaction efficiency of the treatment liquid.

[0011] Further, the spray mechanism includes a fixed pipe, the fixed pipe is vertically arranged on the inner wall of the main body, the input end of the fixed pipe is connected to the output end pipeline of the tapered part, the output end of the fixed pipe is connected to a rotating pipe, the fixed pipe is coaxially arranged with the rotating pipe, a groove is arranged at the connection between the fixed pipe and the rotating pipe, a rotating ring is arranged at the end where the rotating pipe is connected to the fixed pipe, the rotating pipe is rotatably connected to the groove through the rotating ring, and a plurality of gas spray holes are opened on the side wall of the other end of the rotating pipe, the plurality of gas spray holes are evenly arranged around the axis of the rotating pipe, and the direction of the gas spray holes is arranged along the tangential direction of the rotating pipe. After passing through the tapered part, the exhaust gas flows into the fixed pipe, and then enters the interior of the rotating pipe and is ejected through the gas spray holes, thereby generating a thrust along the tangential direction on the rotating pipe, so that the rotating pipe starts to rotate around the groove, so that the exhaust gas rotates and ejects in the main body.

[0012] Furthermore, a liquid storage cylinder is fixedly arranged outside the fixed tube, the liquid storage cylinder is coaxially arranged with the fixed tube, the input end pipeline of the liquid storage cylinder is connected with a liquid infusion tube, and the input end of the liquid infusion tube is connected with the output end pipeline of the spiral pipeline. After the treatment liquid flows through the spiral pipeline, it flows into the interior of the liquid storage cylinder through the liquid infusion tube.

[0013] Furthermore, a circulation tube is arranged between the inner wall of the liquid storage tube and the outer wall of the fixed tube, the circulation tube is arranged coaxially with the fixed tube, a plurality of circulation holes are provided on the side wall of the circulation tube, the plurality of circulation holes are evenly arranged on the side wall of the circulation tube around the fixed tube, a circulation cavity is formed between the circulation tube and the outer wall of the fixed tube, a plurality of spiral spray holes are provided at the connection between the liquid storage tube and the outer wall of the fixed tube, the spiral direction of the spiral spray holes is opposite to the nozzle direction of the gas spray holes. The treatment liquid inside the liquid storage tube flows evenly into the circulation cavity through the circulation holes on the side wall of the circulation tube, and then is sprayed out from the spiral spray holes at the connection between the liquid storage tube and the fixed tube in the opposite direction to the exhaust gas spraying, thereby fully increasing the contact area and reaction time between the treatment liquid and the exhaust gas, and effectively improving the reaction effect between the treatment liquid and the exhaust gas.

[0014] Furthermore, the dirt collecting mechanism includes a rotating shaft, which is rotatably arranged at the axis center of the main body, a plurality of connecting frames are fixedly arranged around the rotating shaft at the bottom of the tilting platform, a mounting ring is fixedly arranged at the other end of the connecting frame, the bottom end of the rotating shaft passes through the first filter layer and the second filter layer and is rotatably connected to the mounting ring, a driven bevel gear is arranged on the top outer side wall of the rotating shaft, a driving shaft is connected to the inner end of the rotating tube, the rotating tube is coaxially arranged with the driving shaft, the driving shaft is arranged perpendicularly to the rotating shaft, a driving bevel gear is arranged at the other end of the driving shaft, and the driving bevel gear is meshed with the driven bevel gear. When the rotating tube rotates, it drives the driving shaft to start rotating, so that the driving bevel gear at the other end of the driving shaft starts rotating, and when the driving bevel gear rotates, it drives the driven bevel gear meshed with it to start rotating, so that the rotating shaft starts rotating.

[0015] Furthermore, the first cleaning rod and the second cleaning rod are respectively arranged vertically on the upper part of the side wall where the rotating shaft is connected with the first filter layer and the second filter layer, and the first slot and the second slot are respectively opened on the side wall where the main body is connected with the first filter layer and the second filter layer, and the first cleaning rod and the second cleaning rod are both arranged along the tangent direction of the rotating shaft, and the bottom of the first cleaning rod and the second cleaning rod are both provided with cleaning brushes, and the first slot is oriented at an angle of 30°-60° with the horizontal plane, and the second slot is in the same direction as the first slot. When the rotating shaft rotates, the first cleaning rod and the second cleaning rod are driven to start rotating, so as to collect the solid impurities filtered out from the surface of the first filter layer and the second filter layer, and the impurities move toward the side wall direction of the main body under the action of centrifugal force during the rotation of the first cleaning rod and the second cleaning rod, and finally flow out of the outside of the main body along the first slot and the second slot, respectively, so as to clean the surface of the first filter layer and the second filter layer, and avoid being blocked by impurities after long-term use, which affects the filtering effect.

[0016] Furthermore, a first reflow groove and a second reflow groove are respectively provided at the outer bottom of the first groove and the second groove, a first reflow hole is provided between the bottom of the first reflow groove and the side wall of the main body, the first reflow hole is located at the upper part of the second filter layer, a first filter plate is provided at the top of the first reflow groove, the orientation of the first filter plate coincides with the first groove, a second reflow hole is provided between the second reflow groove and the side wall of the main body, the second reflow hole is located at the upper part of the inclined platform, a second filter plate is provided at the top of the second reflow groove, the orientation of the second filter plate coincides with the second groove, and a sewage collecting tank is fixedly provided on the outer sides of the first reflow groove and the second reflow groove. After the impurities flow out along the first slot, they fall on the surface of the first filter plate at the top of the first reflux groove and flow downward under the action of gravity. During the flow, the liquid in the magazine enters the first reflux groove through the first filter plate, and then flows into the main body again along the first reflux hole. The remaining solid impurities flow into the sewage collection tank along the first filter plate. Similarly, the liquid part of the impurities discharged from the second slot flows back into the main body again, and the solid part flows into the sewage collection tank, thereby realizing the classified collection of solid impurities and sewage, which is convenient for their separate treatment.

[0017] Beneficial effects of the present invention:

[0018] 1. The environmentally friendly chemical waste gas absorption tower of the present invention is provided with a spraying mechanism, so that the treatment liquid inside the liquid storage cylinder flows evenly into the circulation cavity through the circulation holes on the side wall of the circulation cylinder, and then is sprayed out from the spiral spray holes at the connection between the liquid storage cylinder and the fixed pipe in the opposite direction to the exhaust gas spraying, thereby fully increasing the contact area and reaction time of the treatment liquid and the exhaust gas, and effectively improving the reaction effect of the treatment liquid and the exhaust gas.

[0019] 2. The environmentally friendly chemical waste gas absorption tower of the present invention is provided with a pollution collecting mechanism, so that the impurities flow out along the first slot and fall on the surface of the first filter plate at the top of the first reflux slot, and flow downward under the action of gravity. During the flow, the liquid in the magazine enters the first reflux slot through the first filter plate, and then flows into the main body again along the first reflux hole. The remaining solid impurities flow into the pollution collecting tank along the first filter plate. The liquid part of the impurities discharged from the second slot flows back into the main body again, and the solid part flows into the pollution collecting tank, thereby realizing the classified collection of solid impurities and sewage, which is convenient for their separate treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the environmentally friendly chemical waste gas absorption tower;

[0021] Figure 2 This is a schematic diagram of the spray mechanism of the environmentally friendly chemical waste gas absorption tower;

[0022] Figure 3It is a schematic diagram of the gas spray hole cross section of the environmentally friendly chemical waste gas absorption tower;

[0023] Figure 4 This is an enlarged schematic diagram of the structure of location A of this environmentally friendly chemical waste gas absorption tower;

[0024] Figure 5 It is a top view schematic diagram of the main internal structure of this environmentally friendly chemical waste gas absorption tower.

[0025] Description of the accompanying drawings: 1. main body; 2. bracket; 3. high-pressure air pump; 4. air inlet pipe; 5. air outlet pipe; 6. input pipe; 7. flange interface; 8. liquid inlet pipe; 9. high-pressure liquid pump; 10. treatment liquid output pipe; 11. treatment liquid input pipe; 12. exhaust pipe; 13. spray mechanism; 14. drive shaft; 15. drive bevel gear; 16. driven bevel gear; 17. rotating shaft; 18. first filter layer; 19. first cleaning rod; 20. first slot; 21. first reflux groove; 22. first filter plate; 23. second filter Filter layer; 24, second cleaning rod; 25, second slot; 26, second reflux slot; 27, second filter plate; 28, sewage trough; 29, tilting table; 30, connecting frame; 31, mounting ring; 32, sewage trough; 33, liquid outlet; 34, valve; 35, air inlet; 36, spiral pipe; 37, tapered part; 38, fixed pipe; 39, gas spray hole; 40, infusion tube; 41, liquid storage cylinder; 42, circulation cylinder; 43, circulation hole; 44, rotating tube; 45, spiral spray hole; 46, groove; 47, rotating ring. DETAILED DESCRIPTION

[0026] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0027] like Figure 1-5 As shown, an environmentally friendly chemical waste gas absorption tower includes a base, an air intake mechanism, a spray mechanism 13 and a pollutant collection mechanism;

[0028] A main body 1 is fixedly arranged on the top of the base, and the main body 1 is arranged in a cylindrical shape. A first filter layer 18 and a second filter layer 23 are fixedly arranged inside the main body 1. The first filter layer 18 is arranged in parallel with the second filter layer 23, and the first filter layer 18 and the second filter layer 23 are both arranged perpendicular to the axis of the main body 1. The air intake mechanism is arranged on the outer side wall of the main body 1, and the spray mechanism 13 is connected to the output end pipeline of the air intake mechanism. The spray mechanism 13 is arranged on the top of the first filter layer 18, and the dirt collecting mechanism is arranged between the first filter layer 18 and the second filter layer 23. The bottom pipeline of the left side wall of the main body 1 is connected with an exhaust pipe 12, and the input end of the exhaust pipe 12 is located at the lower side of the second filter layer 23. An inclined platform 29 is fixedly arranged at the inner bottom of the main body 1, and a sewage tank 32 is provided at the bottom of the inclined platform 29. A liquid outlet 33 is provided at the bottom of the sewage tank 32, and a valve 34 is provided at the bottom of the liquid outlet 33. A plurality of brackets 2 are fixedly arranged at the bottom of the base. When in use, the waste gas and the treated liquid are transported into the interior of the main body 1 through the air intake mechanism, and then the waste gas and the treated liquid are atomized and sprayed out through the spray mechanism 13. The liquid after the reaction is filtered by the first filter layer 18 and the second filter layer 23 and then flows into the sewage tank 32 at the bottom of the main body 1 through the inclined platform 29. The harmless gas after treatment is discharged along the exhaust pipe 12. During the treatment, the impurities filtered out from the surface of the first filter layer 18 and the second filter layer 23 can be collected by the pollution collection mechanism for centralized treatment.

[0029] The air intake mechanism includes an input pipe 6, the output end of which passes through the side wall of the main body 1 and extends to the inside of the main body 1. The input end pipeline of the input pipe 6 is connected to an outlet pipe 5, and the input end of the outlet pipe 5 is connected to the output end pipeline of the high-pressure air pump 3. The high-pressure air pump 3 is fixedly arranged on the top of the main body 1. The input end pipeline of the high-pressure air pump 3 is connected to an intake pipe 4, and the input end of the intake pipe 4 is connected to the pipeline of the exhaust gas generating mechanism. During the treatment, the exhaust gas is compressed by the high-pressure air pump 3, and then the exhaust gas flows into the input pipe 6 along the outlet pipe 5, and finally enters the inside of the main body 1.

[0030] The lower input end pipeline of the input pipe 6 is connected with a liquid inlet pipe 8, the input end pipeline of the liquid inlet pipe 8 is connected with a treatment liquid output pipe 10, the input end pipeline of the treatment liquid output pipe 10 is connected with a high-pressure liquid pump 9, the high-pressure liquid pump 9 is fixedly arranged on the outer side wall of the main body 1, the input end pipeline of the high-pressure liquid pump 9 is connected with a treatment liquid input pipe 116, the input end pipeline of the treatment liquid input pipe 116 is connected with a treatment liquid storage tank, and the end connection of the input pipe 6, the liquid inlet pipe 8, the air outlet pipe 5, the air inlet pipe 4, the treatment liquid output pipe 10 and the treatment liquid input pipe 116 are all provided with flange interfaces 7. While the exhaust gas is input, the treatment liquid is pumped into the treatment liquid output pipe 10 through the high-pressure liquid pump 9, and then flows into the inner wall of the input pipe 6 through the liquid inlet pipe 8.

[0031] The input pipe 6 is provided with an air inlet 35 inside, and the output end of the air inlet 35 is provided with a tapered portion 37. The inner wall of the input pipe 6 is provided with a spiral pipe 36, and the spiral pipe 36 is arranged around the air inlet 35. The input end of the spiral pipe 36 is connected to the output end pipeline of the liquid inlet pipe 8, and the output end of the spiral pipe 36 is connected to the input end pipeline of the spray mechanism 13. After the exhaust gas enters the input pipe 6, it flows along the air inlet 35, and finally flows out through the tapered portion 37 under pressure. After the treatment liquid flows into the input pipe 6, it enters the spiral pipe 36. While the spiral pipe 36 flows, the temperature of the exhaust gas can be reduced to avoid excessively high temperature of the exhaust gas and reduced reaction efficiency of the treatment liquid.

[0032] The spray mechanism 13 includes a fixed tube 38, which is vertically arranged on the inner wall of the main body 1, the input end of the fixed tube 38 is connected to the output end pipeline of the tapered portion 37, the output end of the fixed tube 38 is connected to a rotating tube 44, the fixed tube 38 and the rotating tube 44 are coaxially arranged, a groove 46 is arranged at the connection between the fixed tube 38 and the rotating tube 44, a rotating ring 47 is arranged at the end where the rotating tube 44 is connected to the fixed tube 38, the rotating tube 44 is rotatably connected to the groove 46 through the rotating ring 47, a plurality of gas spray holes 39 are opened on the side wall of the other end of the rotating tube 44, the plurality of gas spray holes 39 are evenly arranged around the axis of the rotating tube 44, and the direction of the gas spray holes 39 is arranged along the tangent direction of the rotating tube 44. The exhaust gas flows into the fixed pipe 38 after passing through the conical portion 37 , and then enters the interior of the rotating pipe 44 and is ejected through the gas ejection hole 39 , thereby generating a thrust in the tangential direction on the rotating pipe 44 , causing the rotating pipe 44 to start rotating around the groove 46 , thereby causing the exhaust gas to rotate and eject in the main body 1 .

[0033] A liquid storage cylinder 41 is fixedly arranged outside the fixed pipe 38, and the liquid storage cylinder 41 is coaxially arranged with the fixed pipe 38. The input end pipeline of the liquid storage cylinder 41 is connected to the infusion tube 40, and the input end of the infusion tube 40 is connected to the output end pipeline of the spiral pipe 36. After flowing through the spiral pipe 36, the treated liquid flows into the interior of the liquid storage cylinder 41 through the infusion tube 40.

[0034] A circulation cylinder 42 is arranged between the inner wall of the liquid storage cylinder 41 and the outer wall of the fixed pipe 38. The circulation cylinder 42 is coaxially arranged with the fixed pipe 38. The side wall of the circulation cylinder 42 is provided with a plurality of circulation holes 43. The plurality of circulation holes 43 are evenly arranged on the side wall of the circulation cylinder 42 around the fixed pipe 38. A circulation cavity is formed between the circulation cylinder 42 and the outer wall of the fixed pipe 38. A plurality of spiral spray holes 45 are arranged at the connection between the liquid storage cylinder 41 and the outer wall of the fixed pipe 38. The spiral direction of the spiral spray holes 45 is opposite to the direction of the nozzle of the gas spray hole 39. The treatment liquid in the liquid storage cylinder 41 flows into the circulation cavity evenly through the circulation holes 43 on the side wall of the circulation cylinder 42, and then is sprayed out from the spiral spray holes 45 at the connection between the liquid storage cylinder 41 and the fixed pipe 38 in the opposite direction to the exhaust gas spraying, thereby fully increasing the contact area and reaction time of the treatment liquid and the exhaust gas, and effectively improving the reaction effect of the treatment liquid and the exhaust gas.

[0035] The dirt collecting mechanism includes a rotating shaft 17, which is rotatably arranged at the axis center of the main body 1. A plurality of connecting frames 30 are fixedly arranged around the rotating shaft 17 at the bottom of the tilting platform 29, and a mounting ring 31 is fixedly arranged at the other end of the connecting frame 30. The bottom end of the rotating shaft 17 passes through the first filter layer 18 and the second filter layer 23 and is rotatably connected to the mounting ring 31. A driven bevel gear 16 is arranged on the top outer side wall of the rotating shaft 17. The inner end of the rotating tube 44 is connected to the driving shaft 14. The rotating tube 44 is coaxially arranged with the driving shaft 14. The driving shaft 14 is perpendicular to the rotating shaft 17. A driving bevel gear 15 is arranged at the other end of the driving shaft 14, and the driving bevel gear 15 is meshed and connected with the driven bevel gear 16. When the rotating tube 44 rotates, the driving shaft 14 starts to rotate, so that the driving bevel gear 15 at the other end of the driving shaft 14 starts to rotate. When the driving bevel gear 15 rotates, it drives the driven bevel gear 16 meshing therewith to start to rotate, so that the rotating shaft 17 starts to rotate.

[0036] A first cleaning rod 19 and a second cleaning rod 24 are respectively vertically arranged on the upper part of the side wall at the connection between the rotating shaft 17 and the first filter layer 18 and the second filter layer 23, and a first slot 20 and a second slot 25 are respectively opened on the side wall at the connection between the main body 1 and the first filter layer 18 and the second filter layer 23. The first cleaning rod 19 and the second cleaning rod 24 are both arranged along the tangent direction of the rotating shaft 17, and cleaning brushes are respectively arranged at the bottom of the first cleaning rod 19 and the second cleaning rod 24. The first slot 20 forms an angle of 30° with the horizontal plane, and the second slot 25 is consistent with the direction of the first slot 20. When the rotating shaft 17 rotates, the first cleaning rod 19 and the second cleaning rod 24 are driven to start rotating, so that the solid impurities filtered out from the surfaces of the first filter layer 18 and the second filter layer 23 are collected. During the rotation of the first cleaning rod 19 and the second cleaning rod 24, the impurities move toward the side wall of the main body 1 under the action of centrifugal force, and finally flow out of the outside of the main body 1 along the first slot 20 and the second slot 25 respectively, thereby cleaning the surfaces of the first filter layer 18 and the second filter layer 23 to prevent them from being blocked by impurities after long-term use, thereby affecting the filtering effect.

[0037] A first reflow groove 21 and a second reflow groove 26 are respectively provided at the outer bottom of the first groove 20 and the second groove 25, a first reflow hole is provided between the bottom of the first reflow groove 21 and the side wall of the main body 1, the first reflow hole is located at the upper part of the second filter layer 23, a first filter plate 22 is provided at the top of the first reflow groove 21, the orientation of the first filter plate 22 coincides with the first groove 20, a second reflow hole is provided between the second reflow groove 26 and the side wall of the main body 1, the second reflow hole is located at the upper part of the inclined platform 29, a second filter plate 27 is provided at the top of the second reflow groove 26, the orientation of the second filter plate 27 coincides with the second groove 25, and a sewage collecting tank 28 is fixedly provided on the outer sides of the first reflow groove 21 and the second reflow groove 26. After the impurities flow out along the first slot 20, they fall on the surface of the first filter plate 22 at the top of the first reflux slot 21 and flow downward under the action of gravity. During the flow, the liquid in the magazine enters the first reflux slot 21 through the first filter plate 22, and then flows into the main body 1 again along the first reflux hole. The remaining solid impurities flow into the sewage collecting tank 28 along the first filter plate 22. The liquid part of the impurities discharged from the second slot 25 flows back into the main body 1 again, and the solid part flows into the sewage collecting tank 28, thereby realizing the classified collection of solid impurities and sewage, which is convenient for their separate treatment.

[0038] Working principle: During treatment, the waste gas is compressed by the high-pressure air pump 3, and then the waste gas flows into the input pipe 6 along the outlet pipe 5, and finally enters the interior of the main body 1. While the waste gas is input, the treatment liquid is pumped into the treatment liquid output pipe 10 by the high-pressure liquid pump 9, and then flows into the inner wall of the input pipe 6 through the liquid inlet pipe 8. After the waste gas enters the input pipe 6, it flows along the air inlet 35, and finally flows out under pressure through the tapered portion 37. After the treatment liquid flows into the input pipe 6, it enters the spiral pipe 36. While flowing in the spiral pipe 36, the temperature of the waste gas can be reduced to avoid excessively high temperature of the waste gas and reduced reaction efficiency of the treatment liquid.

[0039] After passing through the tapered portion 37, the exhaust gas flows into the fixed pipe 38, and then enters the interior of the rotating pipe 44 and is ejected through the gas nozzle 39, thereby generating a thrust along the tangential direction on the rotating pipe 44, causing the rotating pipe 44 to start rotating around the groove 46, so that the exhaust gas is rotated and ejected in the main body 1. The treated liquid flows through the spiral pipe 36 and then flows into the interior of the liquid storage cylinder 41 through the infusion tube 40. The treated liquid inside the liquid storage cylinder 41 flows evenly into the circulation cavity through the circulation holes 43 on the side wall of the circulation cylinder 42, and then is ejected from the spiral nozzle 45 at the connection between the liquid storage cylinder 41 and the fixed pipe 38 in the opposite direction to the exhaust gas ejection, thereby fully increasing the contact area and reaction time between the treated liquid and the exhaust gas, and effectively improving the reaction effect between the treated liquid and the exhaust gas.

[0040] When the rotating tube 44 rotates, the driving shaft 14 is driven to start rotating, so that the driving bevel gear 15 at the other end of the driving shaft 14 starts to rotate. When the driving bevel gear 15 rotates, the driven bevel gear 16 meshing therewith is driven to start rotating, so that the rotating shaft 17 starts to rotate. When the rotating shaft 17 rotates, the first cleaning rod 19 and the second cleaning rod 24 are driven to start rotating, so that the solid impurities filtered out from the surface of the first filter layer 18 and the second filter layer 23 are collected. In the process of rotating with the first cleaning rod 19 and the second cleaning rod 24, the impurities move toward the side wall of the main body 1 under the action of centrifugal force, and finally flow out of the outside of the main body 1 along the first slot 20 and the second slot 25 respectively, so as to achieve the first filter layer 18 and the second filter layer 23. The surface of the filter layer 18 and the second filter layer 23 are cleaned to prevent them from being blocked by impurities after long-term use, which affects the filtering effect. After the impurities flow out along the first slot 20, they fall on the surface of the first filter plate 22 at the top of the first reflux slot 21 and flow downward under the action of gravity. During the flow, the liquid in the magazine enters the first reflux slot 21 through the first filter plate 22, and then flows into the main body 1 again along the first reflux hole. The remaining solid impurities flow into the sewage collection tank 28 along the first filter plate 22. The liquid part of the impurities discharged from the second slot 25 flows back into the main body 1 again, and the solid part flows into the sewage collection tank 28, thereby realizing the classified collection of solid impurities and sewage, which is convenient for their separate treatment.

[0041] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly chemical waste gas absorption tower, characterized in that: It comprises a base, an air intake mechanism, a spray mechanism (13) and a sewage collection mechanism; A main body (1) is fixedly arranged on the top of the base, the main body (1) is arranged in a cylindrical shape, a first filter layer (18) and a second filter layer (23) are fixedly arranged inside the main body (1), the first filter layer (18) and the second filter layer (23) are arranged in parallel, the first filter layer (18) and the second filter layer (23) are both arranged perpendicular to the axis of the main body (1), the air intake mechanism is arranged on the outer side wall of the main body (1), the spray mechanism (13) is connected to the output end pipeline of the air intake mechanism, and the spray mechanism (13) is arranged on the first filter layer (18). The dirt collecting mechanism is arranged between the first filter layer (18) and the second filter layer (23); the bottom pipeline of the left side wall of the main body (1) is connected to an exhaust pipe (12); the input end of the exhaust pipe (12) is located below the second filter layer (23); an inclined platform (29) is fixedly arranged at the bottom of the inner side of the main body (1); a sewage trough (32) is provided at the bottom of the inclined platform (29); a liquid outlet (33) is provided at the bottom of the sewage trough (32); a valve (34) is provided at the bottom of the liquid outlet (33); and a plurality of brackets (2) are fixedly arranged at the bottom of the base; The air intake mechanism comprises an input pipe (6), the output end of the input pipe (6) passes through the side wall of the main body (1) and extends to the interior of the main body (1); the input end pipeline of the input pipe (6) is connected to an outlet pipe (5); the input end of the outlet pipe (5) is connected to the output end pipeline of a high-pressure air pump (3); the high-pressure air pump (3) is fixedly arranged on the top of the main body (1); the input end pipeline of the high-pressure air pump (3) is connected to an intake pipe (4); and the input end of the intake pipe (4) is connected to the pipeline of the exhaust gas generating mechanism; The lower input end pipeline of the input pipe (6) is connected to a liquid inlet pipe (8), the input end pipeline of the liquid inlet pipe (8) is connected to a treated liquid output pipe (10), the input end pipeline of the treated liquid output pipe (10) is connected to a high-pressure liquid pump (9), the high-pressure liquid pump (9) is fixedly arranged on the outer wall of the main body (1), the input end pipeline of the high-pressure liquid pump (9) is connected to a treated liquid input pipe (11), the input end pipeline of the treated liquid input pipe (11) is connected to a treated liquid storage tank, and flange interfaces (7) are provided at the end connection points of the input pipe (6), the liquid inlet pipe (8), the air outlet pipe (5), the air inlet pipe (4), the treated liquid output pipe (10) and the treated liquid input pipe (11); An air inlet (35) is provided inside the input pipe (6), and a conical portion (37) is provided at the output end of the air inlet (35). A spiral pipe (36) is provided on the inner wall of the input pipe (6), and the spiral pipe (36) is arranged around the air inlet (35). The input end of the spiral pipe (36) is connected to the output end pipeline of the liquid inlet pipe (8), and the output end of the spiral pipe (36) is connected to the input end pipeline of the spray mechanism (13); The spray mechanism (13) comprises a fixed tube (38), the fixed tube (38) being vertically arranged on the inner wall of the main body (1), the input end of the fixed tube (38) being connected to the output end pipeline of the conical portion (37), the output end of the fixed tube (38) being connected to a rotating tube (44), the fixed tube (38) and the rotating tube (44) being coaxially arranged, a groove (46) being arranged at the connection between the fixed tube (38) and the rotating tube (44), a rotating ring (47) being arranged at the end where the rotating tube (44) and the fixed tube (38) are connected, the rotating tube (44) being rotatably connected to the groove (46) via the rotating ring (47), a plurality of gas spray holes (39) being opened on the side wall at the other end of the rotating tube (44), the plurality of gas spray holes (39) being evenly arranged around the axis of the rotating tube (44), and the direction of the gas spray holes (39) being arranged along the tangent direction of the rotating tube (44); The dirt collecting mechanism comprises a rotating shaft (17), the rotating shaft (17) being rotatably arranged at the axis center of the main body (1), a plurality of connecting frames (30) being fixedly arranged around the rotating shaft (17) at the bottom of the tilting platform (29), a mounting ring (31) being fixedly arranged at the other end of the connecting frame (30), the bottom end of the rotating shaft (17) passing through the first filter layer (18) and the second filter layer (23) being rotatably connected to the mounting ring (31), a driven bevel gear (16) being arranged on the top outer side wall of the rotating shaft (17), the inner end of the rotating tube (44) being connected to a driving shaft (14), the rotating tube (44) being coaxially arranged with the driving shaft (14), the driving shaft (14) being perpendicularly arranged with the rotating shaft (17), the other end of the driving shaft (14) being arranged with a driving bevel gear (15), the driving bevel gear (15) being meshingly connected with the driven bevel gear (16).

2. The environmentally friendly chemical waste gas absorption tower according to claim 1 is characterized in that A liquid storage cylinder (41) is fixedly arranged outside the fixed tube (38), the liquid storage cylinder (41) is coaxially arranged with the fixed tube (38), the input end pipeline of the liquid storage cylinder (41) is connected to the infusion tube (40), and the input end of the infusion tube (40) is connected to the output end pipeline of the spiral pipeline (36).

3. An environmentally friendly chemical waste gas absorption tower according to claim 2, characterized in that A circulation cylinder (42) is arranged between the inner wall of the liquid storage cylinder (41) and the outer wall of the fixed tube (38); the circulation cylinder (42) and the fixed tube (38) are coaxially arranged; a plurality of circulation holes (43) are opened on the side wall of the circulation cylinder (42); the plurality of circulation holes (43) are evenly arranged on the side wall of the circulation cylinder (42) around the fixed tube (38); a circulation cavity is formed between the circulation cylinder (42) and the outer wall of the fixed tube (38); a plurality of spiral spray holes (45) are opened at the connection between the outer wall of the liquid storage cylinder (41) and the fixed tube (38); the spiral direction of the spiral spray hole (45) is opposite to the nozzle direction of the gas spray hole (39).

4. The environmentally friendly chemical waste gas absorption tower according to claim 1 is characterized in that A first cleaning rod (19) and a second cleaning rod (24) are respectively arranged vertically on the upper part of the side wall at the connection between the rotating shaft (17) and the first filter layer (18) and the second filter layer (23); a first slot (20) and a second slot (25) are respectively opened on the side wall at the connection between the main body (1) and the first filter layer (18) and the second filter layer (23); the first cleaning rod (19) and the second cleaning rod (24) are both arranged along the tangent direction of the rotating shaft (17); cleaning brushes are both arranged at the bottom of the first cleaning rod (19) and the second cleaning rod (24); the first slot (20) forms an angle of 30°-60° with the horizontal plane; the second slot (25) is in the same direction as the first slot (20).

5. The environmentally friendly chemical waste gas absorption tower according to claim 4 is characterized in that A first reflow groove (21) and a second reflow groove (26) are respectively arranged at the outer bottom of the first slot (20) and the second slot (25); a first reflow hole is arranged between the bottom of the first reflow groove (21) and the side wall of the main body (1); the first reflow hole is located at the upper part of the second filter layer (23); a first filter plate (22) is arranged at the top of the first reflow groove (21); the orientation of the first filter plate (22) coincides with that of the first slot (20); a second reflow hole is arranged between the second reflow groove (26) and the side wall of the main body (1); the second reflow hole is located at the upper part of the inclined platform (29); a second filter plate (27) is arranged at the top of the second reflow groove (26); the orientation of the second filter plate (27) coincides with that of the second slot (25); and a sewage collecting groove (28) is fixedly arranged at the outer sides of the first reflow groove (21) and the second reflow groove (26).

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