Environment-friendly chemical waste gas treatment device

Abstract

The invention discloses an environment-friendly device for chemical waste gas treatment, and relates to the technical field of chemical waste gas treatment. The inner wall of the treatment box is connected with partition plates; the inner wall of the treatment box is also connected with a circular plate provided with a liquid cavity; a first auxiliary purification assembly is further arranged in the gas outlet pipe, and the first auxiliary purification assembly enables waste gas to be evenly discharged from the multiple gas outlet holes; a second auxiliary purification assembly is further arranged in the circular plate and used for driving the liquid feeding pipe set to rotate, so that the purification liquid sprayed out of the atomization spray head evenly acts on the annular wall face of the air outlet pipe. Through the synergistic effect of the first auxiliary purification assembly and the second auxiliary purification assembly, the contact area of the purification liquid and the waste gas is further increased, full contact of the waste gas and the purification liquid is ensured, and the waste gas treatment efficiency and the purification effect are greatly improved.

Description

Technical Field

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

[0002] Chemical waste gas refers to gases containing toxic and hazardous substances emitted by chemical plants during the production process. This type of waste gas typically contains a variety of pollutants with complex physical and chemical properties and varying toxicity, posing significant risks to the environment and human health. Therefore, before being released into the atmosphere, chemical waste gas must be effectively purified to reduce its environmental pollution.

[0003] Patent document CN205965427U discloses a chemical waste gas treatment device comprising a cold shower, a circulating water sprayer, a water vapor separator, and an activated absorption tower. The cold shower is topped with an exhaust gas input pipe connected to the workshop exhaust output. The lower end of the cold shower is connected to the side wall of the circulating water sprayer via a first exhaust pipe. The circulating water sprayer consists of an upper spray kettle and a lower circulating water pool, which is equipped with multiple spray heads. The activated absorption tower is topped with an exhaust pipe. This device combines water spraying and activated absorption methods to effectively absorb and purify harmful gases in the exhaust gas. However, this design has certain limitations. Specifically, during the spray treatment process, circulating water is sprayed through multiple spray heads into contact with the chemical waste gas entering the exhaust gas input pipe to remove harmful components from the exhaust gas. However, this design makes it difficult to ensure sufficient and thorough contact between the circulating water and the chemical waste gas, resulting in low removal efficiency of harmful substances. This not only increases the workload of the subsequent active absorption process, but also increases the frequency of cleaning and replacement of the active adsorbent, further increasing the cost and energy consumption of chemical waste gas purification. Therefore, it is urgent to develop a more efficient and environmentally friendly chemical waste gas treatment device to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an environmental protection device for treating chemical waste gas to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a chemical waste gas treatment and environmental protection device, comprising a treatment box, the treatment box being connected to an air inlet pipe, an exhaust pipe, a liquid inlet pipe and a liquid discharge pipe arranged in a staggered manner;

[0006] The inner wall of the treatment box is connected to a partition, on which a number of vertical pipes are arranged. The bottom end of each vertical pipe passes through the partition and is connected to an air outlet pipe, on the annular wall of which a number of air outlet holes are opened.

[0007] The inner wall of the treatment box is also connected to a circular plate with a liquid cavity. The output end of the air inlet pipe passes through the side wall of the treatment box and the side wall of the circular plate in sequence and is connected to the liquid cavity. The circular plate is provided with a plurality of groups of liquid delivery pipes connected to its liquid cavity. Each liquid delivery pipe group includes two liquid delivery pipes located on both sides of the air outlet pipe. The inner side wall of the liquid delivery pipe is connected to a plurality of atomizing nozzles facing the air outlet pipe.

[0008] A first auxiliary purification component is also provided in the exhaust pipe, and the first auxiliary purification component enables the exhaust gas to be discharged evenly from multiple exhaust holes;

[0009] A second auxiliary purification component is also provided in the circular plate, and the second auxiliary purification component is used to drive the liquid delivery pipe group to rotate so that the purification liquid sprayed by the atomizing nozzle acts evenly on the annular wall surface of the air outlet pipe.

[0010] Furthermore, the first auxiliary purification component includes a roller rotatably connected to the outlet pipe and coaxially arranged with the outlet pipe, and a plurality of rotating plates distributed in an equiangular annular pattern are connected to the annular wall of the roller;

[0011] The first auxiliary purification component further includes a first driving mechanism, which acts on the roller to rotate along the axis of the air outlet pipe.

[0012] Furthermore, the first auxiliary purification component also includes a fixing plate fixedly connected to the inner wall of the processing box, and a plurality of mounting holes penetrating the bottom end of the fixing plate are opened on the top of the fixing plate. The bottom end of the vertical pipe is connected to the top end of the mounting hole, and the bottom end of the mounting hole is connected to a guide pipe connected to the air outlet pipe, and the guide pipe is an inverted frustum.

[0013] Furthermore, the first driving mechanism includes a first rotating shaft rotatably connected to the mounting hole, and a plurality of evenly distributed rotating members are provided on the outer circumference of the first rotating shaft;

[0014] The first rotating shaft transmits the rotational kinetic energy to the rotating roller through the transmission structure.

[0015] Furthermore, the rotating member is an impeller.

[0016] Furthermore, it also includes a flow regulating component;

[0017] The flow regulating assembly includes a mounting plate sleeved on the outer circumferential surface of the first rotating shaft, and a plurality of accommodating cavities distributed in a circular shape and at equal angles are provided on the outer circumferential surface of the mounting plate. A baffle is connected to the accommodating cavity through a first elastic member, and the first elastic member acts on the baffle so that the baffle shrinks in the accommodating cavity and the baffle can move outward relative to the accommodating cavity.

[0018] Furthermore, the length of the baffle is not less than one-third of the inner diameter of the mounting hole, the number of baffles movably plugged into each mounting plate is not less than five, the baffle is fan-shaped and the corresponding central angle is between forty-five degrees and sixty degrees.

[0019] Furthermore, the transmission structure includes a first driving wheel sleeved on the bottom end of the first rotating shaft;

[0020] The transmission structure includes a first horizontal plate fixedly connected to the inner wall of the air outlet pipe, a rotating rod is rotatably inserted on the first horizontal plate, the bottom end of the rotating rod is connected to the top of the rotating roller, the top end of the rotating rod is connected to a straight rod, and the top end of the straight rod is connected to a second driving wheel connected to the first driving wheel.

[0021] Furthermore, the second auxiliary purification component includes a plurality of liquid delivery pipes respectively adapted to the plurality of liquid delivery pipe groups, the bottom ends of the liquid delivery pipes being connected to the liquid cavity of the circular plate, the top ends of the liquid delivery pipes being rotatably sleeved with a rotating pipe, the top ends of the rotating pipes being connected to a tee pipe, and the bottom ends of the two liquid delivery pipes in each liquid delivery pipe group being respectively connected to the two output ends of the tee pipe;

[0022] The second auxiliary purification component also includes a second driving mechanism for driving a plurality of rotating tubes to rotate synchronously.

[0023] Furthermore, the second driving mechanism includes an electric push rod fixedly connected to the side wall of the processing box, the output end of the electric push rod passes through the side wall of the processing box and is connected to a push plate, the push plate is connected to a plurality of movable plates, and the movable plates are provided with racks;

[0024] The second driving mechanism further comprises a driving ring sleeved on the rotating tube, and the driving ring is provided with teeth meshing with the rack.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The first auxiliary purification component described in the present invention drives the roller to rotate through the first driving mechanism, and uses the rotation of the rotating plate to discharge the exhaust gas evenly and quickly from the air outlet. This design effectively solves the problems of uneven exhaust gas distribution and slow flow speed in traditional exhaust gas treatment devices, and significantly improves the contact efficiency between the exhaust gas and the purification liquid. At the same time, the second auxiliary purification component uses a rotatable liquid delivery pipe group design to enable the atomizing nozzle to evenly spray the purification liquid onto the annular wall surface of the exhaust pipe, further increasing the contact area between the purification liquid and the exhaust gas. This dual optimization design not only ensures sufficient contact between the exhaust gas and the purification liquid, but also greatly improves the efficiency and purification effect of the exhaust gas treatment;

[0027] 2. The flow control assembly described herein automatically adjusts the flow area of ​​the flow duct based on changes in intake air volume through the coordinated action of the mounting plate, baffle, and first elastic member. When intake air volume increases, the baffle extends under the action of centrifugal force, reducing the flow area of ​​the flow duct and thus preventing excessive exhaust gas flow. When intake air volume decreases, the baffle retracts, restoring the flow area of ​​the flow duct. This adaptive adjustment mechanism effectively avoids inadequate purification caused by fluctuating exhaust gas flow rates, ensuring a stable exhaust gas flow rate at the outlet and sufficient contact between the purification liquid and the exhaust gas, thus ensuring thorough and stable exhaust gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the first partial structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the second partial structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the third partial structure of the present invention;

[0033] Figure 6 This is a schematic diagram of a fourth partial structure of the present invention;

[0034] Figure 7 This is a schematic diagram of a fifth partial structure of the present invention;

[0035] Figure 8 For the present invention Figure 4 A magnified schematic diagram of point A in the middle;

[0036] Figure 9 For the present invention Figure 6 A magnified schematic diagram of point B in the middle;

[0037] Figure 10 For the present invention Figure 7 Enlarged schematic diagram of point C in the middle.

[0038] In the figure: 1, treatment box; 11, air inlet pipe; 12, exhaust pipe; 121, partition; 122, vertical pipe; 123, air outlet pipe; 124, air outlet hole; 13, liquid inlet pipe; 131, circular plate; 132, liquid delivery pipe; 133, atomizing nozzle; 14, liquid discharge pipe; 2, first auxiliary purification component; 21, fixing plate; 22, mounting hole; 23, guide pipe; 24, roller; 25, rotating plate; 26, first driving mechanism; 261, first A rotating shaft; 262, a rotating member; 263, a first driving wheel; 264, a first horizontal plate; 265, a rotating rod; 266, a straight rod; 267, a second driving wheel; 3, a second auxiliary purification component; 31, a liquid discharge pipe; 32, a rotating pipe; 33, a three-way pipe; 34, a second driving mechanism; 341, an electric push rod; 342, a push plate; 343, a moving plate; 344, a driving ring; 4, a flow regulating component; 41, a mounting plate; 42, a baffle. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figures 1-10 The chemical waste gas treatment and environmental protection device shown in the figure includes a treatment box 1, which is connected to an air inlet pipe 11, an exhaust pipe 12, a liquid inlet pipe 13 and a liquid discharge pipe 14 that are staggered;

[0041] The inner wall of the processing box 1 is connected to a partition 121, and a plurality of vertical pipes 122 are provided on the partition 121. The bottom end of each vertical pipe 122 passes through the partition 121 and is connected to an air outlet pipe 123. The annular wall surface of the air outlet pipe 123 is provided with a plurality of air outlet holes 124.

[0042] The inner wall of the treatment box 1 is also connected to a circular plate 131 with a liquid cavity. The output end of the air inlet pipe 11 passes through the side wall of the treatment box 1 and the side wall of the circular plate 131 in sequence to communicate with the liquid cavity. The circular plate 131 is provided with several groups of liquid supply pipes connected to its liquid cavity. Each liquid supply pipe group includes two liquid supply pipes 132 located on both sides of the air outlet pipe 123. The inner side wall of the liquid supply pipe 132 is connected to several atomizing nozzles 133 facing the air outlet pipe 123.

[0043] A first auxiliary purification component 2 is also provided in the exhaust pipe 123, and the first auxiliary purification component 2 allows the exhaust gas to be evenly discharged from the multiple exhaust holes 124;

[0044] A second auxiliary purification assembly 3 is further provided in the circular plate 131 . The second auxiliary purification assembly 3 is used to drive the liquid delivery pipe assembly to rotate so that the purification liquid sprayed by the atomizing nozzle 133 acts evenly on the annular wall surface of the air outlet pipe 123 .

[0045] In this embodiment, the air inlet pipe 11 is connected to the exhaust gas output pipe, and is used to receive the exhaust gas to be purified into the treatment box 1; the exhaust pipe 12 is connected to the exhaust gas collection pipe, and is used to discharge the purified exhaust gas out of the treatment box 1; the liquid inlet pipe 13 is used to connect to the purified liquid output pipe, and is used to input purified liquid into the liquid cavity of the circular plate 131; the liquid discharge pipe 14 is used to discharge the waste liquid that has acted on the exhaust gas out of the treatment box 1.

[0046] During use, the exhaust gas is evenly discharged from the plurality of exhaust holes 124, and the purification liquid is evenly sprayed on the exhaust gas through the rotation of the liquid delivery pipe group, so that the exhaust gas and the purification liquid can be more fully contacted, thereby fully and evenly purifying the exhaust gas.

[0047] Preferably, the first auxiliary purification component 2 includes a roller 24 rotatably connected to the outlet pipe 123 and coaxially arranged with the outlet pipe 123, and a plurality of rotating plates 25 distributed in an equiangular annular pattern are connected to the annular wall surface of the roller 24;

[0048] The first auxiliary purification component 2 further includes a first driving mechanism 26 , which acts on the roller 24 to rotate along the axis of the outlet pipe 123 .

[0049] In this embodiment, the design of roller 24 and rotating plate 25 allows first drive mechanism 26 to drive roller 24 to rotate coaxially with outlet pipe 123, accelerating the uniform discharge of exhaust gas from outlet hole 124. This approach enhances the uniformity and speed of exhaust gas flow, avoiding the uneven exhaust gas distribution problem in conventional static outlet pipe 123.

[0050] Preferably, the first auxiliary purification component 2 also includes a fixing plate 21 fixedly connected to the inner wall of the processing box 1, and a plurality of mounting holes 22 are opened on the top of the fixing plate 21 and pass through the bottom end of the fixing plate 21. The bottom end of the vertical pipe 122 is connected to the top end of the mounting hole 22, and the bottom end of the mounting hole 22 is connected to the guide pipe 23 connected to the air outlet pipe 123, and the guide pipe 23 is an inverted frustum.

[0051] After the exhaust gas flows through the guide pipe 23, the inverted frustum design of the guide pipe 23 can increase the flow rate of the exhaust gas, thereby ensuring that the exhaust gas can quickly flow into the inner cavity of the treatment box 1 through the outlet pipe 123 and the outlet hole 124, ensuring the purification processing speed of the exhaust gas.

[0052] The exhaust gas flows through the following path: the exhaust gas flows into the inner cavity of the processing box 1 through the air inlet pipe 11 , the vertical pipe 122 , the mounting hole 22 , the flow guide pipe 23 , the air outlet pipe 123 and the air outlet hole 124 .

[0053] Preferably, the first driving mechanism 26 includes a first rotating shaft 261 rotatably connected to the mounting hole 22 , and a plurality of evenly distributed rotating members 262 are provided on the outer circumference of the first rotating shaft 261 ;

[0054] The first rotating shaft 261 transmits the rotational kinetic energy to the rotating roller 24 through the transmission structure.

[0055] Preferably, the rotating member 262 is an impeller.

[0056] When the exhaust gas flows through the mounting hole 22 , it drives the rotating member 262 (impeller) to rotate. The rotating member 262 (impeller) drives the first rotating shaft 261 to rotate, and then drives the roller 24 to rotate under the transmission action of the transmission structure.

[0057] The first rotating shaft 261 can be directly connected to the rotating roller 24 via a transmission rod to transmit kinetic energy (not shown).

[0058] Preferably, it also includes a flow regulating component 4;

[0059] The flow regulating assembly 4 includes a mounting plate 41 which is sleeved on the outer peripheral surface of the first rotating shaft 261. A plurality of accommodating cavities distributed in a circular shape and at equal angles are provided on the outer peripheral surface of the mounting plate 41. A baffle 42 is connected to the accommodating cavity through a first elastic member. The first elastic member acts on the baffle 42 so that the baffle 42 shrinks in the accommodating cavity and the baffle 42 can move outward relative to the accommodating cavity.

[0060] When the rotating member 262 (impeller) rotates, it will drive the mounting plate 41 to rotate through the first rotating shaft 261. When the exhaust gas intake is large, the flow rate of the exhaust gas flowing through the mounting hole 22 will be faster, which will drive the rotating member 262 (impeller) to rotate faster. The rotating member 262 (impeller) drives the mounting plate 41 to rotate faster through the first rotating shaft 261, so that the centrifugal force exerted on the multiple baffles 42 increases, thereby increasing the distance that the baffles 42 extend from the accommodating cavity. This can reduce the flow area of ​​the guide pipe 23, and then reduce the amount of exhaust gas flowing into the guide pipe 23 and the outlet pipe 123, thereby avoiding the exhaust gas flowing out of the outlet hole 124 at too fast a speed, thereby ensuring the purification effect of the exhaust gas.

[0061] Preferably, the length of the baffle 42 is not less than one-third of the inner diameter of the mounting hole 22, the number of baffles 42 movably plugged into each mounting plate 41 is not less than five, and the baffle 42 is fan-shaped and the corresponding central angle is between forty-five degrees and sixty degrees.

[0062] This design enables the baffle 42 to significantly reduce the flow area of ​​the exhaust gas in the guide pipe 23 after extending from the accommodating cavity, so that the flow regulating component 4 can work reliably to ensure the purification effect of the exhaust gas.

[0063] If there is a misalignment between the first rotating shaft 261 and the rotating roller 24, the following structure can be used to ensure the coaxial arrangement of the rotating roller 24 and the outlet pipe 123. Preferably, the transmission structure includes a first driving wheel 263 sleeved on the bottom end of the first rotating shaft 261;

[0064] The transmission structure includes a first transverse plate 264 fixedly connected to the inner wall of the air outlet pipe 123, and a rotating rod 265 is rotatably inserted into the first transverse plate 264. The bottom end of the rotating rod 265 is connected to the top of the roller 24, and the top of the rotating rod 265 is connected to a straight rod 266. The top of the straight rod 266 is connected to a second driving wheel 267 connected to the first driving wheel 263.

[0065] In this embodiment, a compensation structure, a first driving wheel 263 and a second driving wheel 267 are designed to compensate for the misalignment between the first rotating shaft 261 and the rotating roller 24 .

[0066] When in use, the first rotating shaft 261 is driven to rotate by the rotating member 262, the first rotating shaft 261 drives the first driving wheel 263 to rotate, the first driving wheel 263 drives the second driving wheel 267 to rotate, and the second driving wheel 267 drives the roller 24 to rotate stably around the axis of the outlet pipe 123 through the straight rod 266 and the rotating rod 265. This ensures that the rotating plate 25 can stably and reliably push the exhaust gas in the outlet pipe 123 to accelerate through the outlet hole 124, thereby ensuring the efficiency of the device in treating exhaust gas.

[0067] Preferably, the second auxiliary purification component 3 includes a plurality of liquid delivery pipes 31 respectively adapted to the plurality of liquid delivery pipe groups. The bottom end of the liquid delivery pipe 31 is connected to the liquid cavity of the circular plate 131. The top end of the liquid delivery pipe 31 is rotatably connected to a rotating pipe 32. The top end of the rotating pipe 32 is connected to a tee pipe 33. The bottom ends of the two liquid delivery pipes 132 in each liquid delivery pipe group are respectively connected to the two output ends of the tee pipe 33.

[0068] The second auxiliary purification assembly 3 further includes a second driving mechanism 34 for driving a plurality of rotating tubes 32 to rotate synchronously.

[0069] In this embodiment, the second driving mechanism 34 drives multiple rotating tubes 32 to rotate, and each rotating tube 32 drives the liquid delivery pipe group to rotate around the axis of the corresponding air outlet pipe 123 through the three-way pipe 33, so that the contact area between the purified liquid sprayed by the atomizing nozzle 133 on the liquid delivery pipe 132 and the exhaust gas sprayed by the air outlet 124 is effectively increased, thereby further improving the sufficiency of the contact between the purified liquid and the exhaust gas, and greatly improving the purification efficiency of the chemical waste gas.

[0070] In this embodiment, the purification liquid flows through the liquid inlet pipe 13, the circular plate 131 and its internal liquid cavity, the liquid flow pipe 31, the rotating pipe 32, the three-way pipe 33, the liquid delivery pipe 132 and the atomizing nozzle 133 to be sprayed around the air outlet pipe 123.

[0071] Preferably, the second driving mechanism 34 includes an electric push rod 341 fixedly connected to the side wall of the processing box 1, the output end of the electric push rod 341 passes through the side wall of the processing box 1 and is connected to a push plate 342, and the push plate 342 is connected to a plurality of movable plates 343, and the movable plates 343 are provided with racks;

[0072] The second driving mechanism 34 further includes a driving ring 344 sleeved on the rotating tube 32 , and the driving ring 344 is provided with teeth engaged with the rack.

[0073] When this embodiment is applied, the reciprocating extension and retraction of the electric push rod 341 can drive multiple movable plates 343 to move back and forth in a straight line through the push plate 342. Through the cooperation of the rack and the teeth, the movable plate 343 can drive the drive ring 344 to rotate back and forth counterclockwise or clockwise, thereby driving multiple rotating tubes 32 to rotate, thereby stably driving several groups of liquid delivery tube groups to rotate around the corresponding air outlet pipes 123, respectively, to ensure that the purification of the exhaust gas can be carried out smoothly, and to improve the reliability and practicality of the device.

[0074] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0075] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A chemical waste gas treatment and environmental protection device, comprising a treatment box (1), the treatment box (1) being connected with an air inlet pipe (11), an exhaust pipe (12), a liquid inlet pipe (13) and a liquid discharge pipe (14) arranged in a staggered manner, characterized in that: The inner wall of the processing box (1) is connected to a partition (121), and a plurality of vertical pipes (122) are arranged on the partition (121). The bottom end of each vertical pipe (122) passes through the partition (121) and is connected to an air outlet pipe (123). A plurality of air outlet holes (124) are opened on the annular wall surface of the air outlet pipe (123); The inner wall of the processing box (1) is also connected to a circular plate (131) provided with a liquid cavity. The output end of the air inlet pipe (11) sequentially penetrates the side wall of the processing box (1) and the side wall of the circular plate (131) to communicate with the liquid cavity. The circular plate (131) is provided with a plurality of liquid delivery pipe groups that are connected with its liquid cavity. Each liquid delivery pipe group includes two liquid delivery pipes (132) respectively located on both sides of the air outlet pipe (123). The inner side wall of the liquid delivery pipe (132) is connected to a plurality of atomizing nozzles (133) that face the air outlet pipe (123). A first auxiliary purification component (2) is also arranged in the air outlet pipe (123), and the first auxiliary purification component (2) allows the exhaust gas to be uniformly discharged from the plurality of air outlet holes (124); A second auxiliary purification component (3) is also arranged inside the circular plate (131). The second auxiliary purification component (3) is used to drive the liquid delivery pipe group to rotate so that the purification liquid sprayed by the atomizing nozzle (133) acts evenly on the annular wall surface of the air outlet pipe (123).

2. The environmental protection device for treating chemical waste gas according to claim 1 is characterized in that: The first auxiliary purification component (2) comprises a rotating roller (24) rotatably connected to the air outlet pipe (123) and coaxially arranged with the air outlet pipe (123), and a plurality of rotating plates (25) distributed in an equiangular ring shape are connected to the annular wall surface of the rotating roller (24); The first auxiliary purification component (2) further comprises a first driving mechanism (26), the first driving mechanism (26) acting on the roller (24) to cause it to rotate along the axis of the outlet pipe (123).

3. The environmental protection device for treating chemical waste gas according to claim 2 is characterized in that: The first auxiliary purification component (2) also includes a fixing plate (21) fixedly connected to the inner wall of the processing box (1), and a plurality of mounting holes (22) penetrating the bottom end of the fixing plate (21) are provided on the top of the fixing plate (21), the bottom end of the vertical pipe (122) is connected to the top end of the mounting hole (22), and the bottom end of the mounting hole (22) is connected to a guide pipe (23) connected to the air outlet pipe (123), and the guide pipe (23) is in the shape of an inverted truncated cone.

4. The environmental protection device for treating chemical waste gas according to claim 3 is characterized in that: The first driving mechanism (26) comprises a first rotating shaft (261) rotatably connected to the mounting hole (22), and a plurality of evenly distributed rotating parts (262) are arranged on the outer peripheral surface of the first rotating shaft (261); The first rotating shaft (261) transmits the rotational kinetic energy to the rotating roller (24) through the transmission structure.

5. The environmental protection device for treating chemical waste gas according to claim 4 is characterized in that: The rotating member (262) is an impeller.

6. The environmental protection device for treating chemical waste gas according to claim 4 is characterized in that: Also included is a flow regulating component (4); The flow regulating assembly (4) comprises a mounting plate (41) sleeved on the outer peripheral surface of the first rotating shaft (261), and a plurality of accommodating cavities distributed in an annular shape and at equal angles are provided on the outer peripheral surface of the mounting plate (41), and a baffle (42) is connected to the accommodating cavity via a first elastic member, and the first elastic member acts on the baffle (42) so that the baffle (42) contracts in the accommodating cavity and the baffle (42) can move outward relative to the accommodating cavity.

7. The environmental protection device for treating chemical waste gas according to claim 6 is characterized in that: The length of the baffle (42) is not less than one third of the inner diameter of the mounting hole (22), the number of baffles (42) movably plugged into each mounting plate (41) is not less than five, and the baffle (42) is fan-shaped and the corresponding central angle is between forty-five degrees and sixty degrees.

8. The environmental protection device for treating chemical waste gas according to claim 4 is characterized in that: The transmission structure comprises a first driving wheel (263) sleeved on the bottom end of the first rotating shaft (261); The transmission structure comprises a first transverse plate (264) fixedly connected to the inner wall of the air outlet pipe (123); a rotating rod (265) is rotatably inserted into the first transverse plate (264); the bottom end of the rotating rod (265) is connected to the top end of the rotating roller (24); the top end of the rotating rod (265) is connected to a straight rod (266); the top end of the straight rod (266) is connected to a second driving wheel (267) connected to the first driving wheel (263).

9. The environmental protection device for treating chemical waste gas according to claim 1, characterized in that: The second auxiliary purification component (3) comprises a plurality of liquid delivery pipes (31) respectively adapted to the plurality of liquid delivery pipe groups, the bottom end of the liquid delivery pipe (31) being connected to the liquid cavity of the circular plate (131), the top end of the liquid delivery pipe (31) being rotatably sleeved with a rotating pipe (32), the top end of the rotating pipe (32) being connected to a three-way pipe (33), the bottom ends of the two liquid delivery pipes (132) in each liquid delivery pipe group being respectively connected to the two output ends of the three-way pipe (33); The second auxiliary purification component (3) also includes a second driving mechanism (34) for driving a plurality of rotating tubes (32) to rotate synchronously.

10. The environmental protection device for treating chemical waste gas according to claim 9, characterized in that: The second driving mechanism (34) comprises an electric push rod (341) fixedly connected to the side wall of the processing box (1), the output end of the electric push rod (341) passes through the side wall of the processing box (1) and is connected to a push plate (342), the push plate (342) is connected to a plurality of moving plates (343), and the moving plates (343) are provided with racks; The second driving mechanism (34) further comprises a driving ring (344) sleeved on the rotating tube (32), and the driving ring (344) is provided with teeth meshing with the rack.

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