A spray tower for waste gas treatment based on environmental protection and a waste gas treatment method

Abstract

This invention discloses an environmentally friendly spray tower and waste gas treatment method for waste gas treatment, comprising a tower body, an air inlet unit, an agitation unit, and a spray unit. The tower body has a solution tank inside, and the air inlet unit extends into the solution tank. Two sets of filling layers are arranged above the solution tank. Each set of filling layers has a wavy guide groove on its inner wall, and the wavy structure of the guide groove is connected end-to-end to form a wavy annular structure. This invention uses the air inlet unit to transport waste gas into the tower body. The air inlet unit, through multiple diagonally opened multi-component flow channels on the air inlet seat, allows the waste gas to enter the tower body in a spiral upward manner. The spiral airflow can fully fill the internal chambers of the tower body and prolong the residence time inside the tower, allowing for a longer reaction time between the waste gas and the spray solution, further enhancing the adsorption and removal effect of substances in the waste gas.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to an environmentally friendly waste gas treatment spray tower and waste gas treatment method. Background Technology

[0002] Waste gas refers to the general term for various pollutant-containing gases emitted into the air during fuel combustion and production processes. If waste gas is directly discharged into the atmosphere, it will cause air pollution. Therefore, when waste gas is discharged, it needs to be sprayed to reduce the pollution of the atmosphere.

[0003] The waste gas treatment process using spray towers involves contacting waste gas with a liquid and a packing layer, utilizing the liquid's absorbent, adsorbent, or catalyst to remove pollutants from the waste gas. However, in existing spray tower technologies, the packing layer inside the tower is mostly stationary during spraying. Therefore, the Coanda effect occurs between the spray solution (i.e., the washing liquid) and the packing layer during the spraying process. This Coanda effect causes uneven distribution of the gas and liquid phases (i.e., washing liquid and waste gas) within the packing layer, reducing mass transfer efficiency and affecting the contact effect between the spray solution and the waste gas, thus lowering the overall treatment effect. Furthermore, existing waste gas treatment methods often involve direct connection to the inside of the spray tower, resulting in a short residence time for the waste gas within the tower. This leads to a short reaction time between the waste gas and the spray solution, preventing the pollutants in the waste gas from being fully adsorbed and removed. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned environmentally friendly spray towers for waste gas treatment, the present invention proposes an environmentally friendly spray tower for waste gas treatment to solve these problems.

[0005] To solve the above technical problems, the present invention provides the following technical solution: an environmentally friendly waste gas treatment spray tower, including a tower body, an air inlet unit, an agitation unit and a spray unit. The tower body has a solution tank inside, and the air inlet unit extends into the solution tank. Two sets of filling layers are provided above the solution tank. Each set of filling layers has a wavy guide groove on its inner wall, and the wavy structure of the guide groove is connected end to end to form a wavy ring structure.

[0006] The air intake unit includes an air intake pipe extending into the solution tank, an air intake seat disposed on one end of the air intake pipe extending into the solution tank, and the air intake seat being vertically disposed at the axial position of the solution tank, a cover plate disposed on the top of the air intake seat, and multiple sets of diversion channels equally arranged with the axial center of the air intake seat as the origin, and each set of diversion channels being opened on the air intake seat in a horizontally inclined manner, and the inclination direction of the multiple sets of diversion channels being the same.

[0007] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, a filter layer is provided at the top of the filling layer, and an air outlet pipe is provided on the top side of the tower body, and the air outlet pipe, the filling layer and the solution tank are connected.

[0008] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, the solution tank is provided with a spray solution, and the horizontal height of the solution is lower than that of the diversion tank. Both sets of filling layers are filled with filling material, and each set of filling layers is provided with an observation window on its side.

[0009] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, the agitation unit includes a main shaft vertically arranged at the center of the tower body, the main shaft passing through two sets of filling layers in a vertical direction, and two sets of agitation components equally arranged on the main shaft, the two sets of agitation components being arranged in a one-to-one correspondence within the two sets of filling layers, and the outer end of the agitation component extending into the guide groove.

[0010] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, wherein: a motor is connected to the top of the main shaft and the motor is located at the top of the tower body; a hexagonal shaft is provided at the position where the main shaft is connected to the agitation component, and one end of the agitation component is vertically inserted into the hexagonal shaft.

[0011] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, the agitation component includes an agitator rod vertically matched and inserted into a hexagonal shaft, wherein the agitator rod and the hexagonal shaft are mutually limited in the circumferential direction, and a spindle-shaped sleeve is laterally arranged on the side of the agitator rod, wherein the outer end of the spindle-shaped sleeve extends into the guide groove.

[0012] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, the spray unit includes a transfer box communicating with a solution tank, a connecting pipe disposed above the transfer box, and two sets of spray racks disposed on the connecting pipe.

[0013] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, the spray frame extends into the tower body, and the two sets of spray frames correspond one-to-one with the two sets of filling layers. At the same time, each set of spray frames is located above the filling material of the filling layer. The spray frame is provided with multiple sets of nozzles in a ring and evenly distributed, and the nozzles are in the shape of an inverted "Y" shape.

[0014] As a preferred embodiment of the environmentally friendly waste gas treatment spray tower of the present invention, the air inlet pipe is connected to the inside of the air inlet seat, and the inside of the air inlet seat is connected to the inner end of the diversion groove, and the cover plate is a cone structure with the small end facing upward.

[0015] This invention also proposes a waste gas treatment method using a spray tower for waste gas treatment, comprising the following steps: S1, waste gas is conveyed into a solution tank through an inlet pipe, and a diversion tank disperses the waste gas flow entering through the inlet pipe, ensuring that each dispersed flow is horizontally conveyed outward in an inclined manner.

[0016] S2. The airflow conveyed obliquely by the multi-component flow channel collides with the arc-shaped inner wall of the solution tank, and the airflow rises synchronously along the arc-shaped inner wall of the solution tank, forming multiple spiral-shaped upward airflows. The spiral-shaped upward airflows allow the exhaust gas to stay inside the tower for a longer time, thereby forming a longer reaction time with the spray solution, allowing the substances in the exhaust gas to react more fully.

[0017] S3. The spiral-shaped exhaust gas flow passes through the lower filling layer for adsorption reaction and continues to move upward. It is then sprayed and adsorbed by the spray frame. With two sets of filling layers and two sets of spray frames, the exhaust gas can be sprayed twice.

[0018] S4. When the exhaust gas passes through the filling material of the filling layer, the motor drives the hexagonal shaft to rotate through the main shaft. The rotating hexagonal shaft, in cooperation with the stirring rod, drives the shuttle sleeve to rotate in the filling material of the filling layer. At the same time, the moving end of the shuttle sleeve will move along the waveform of the guide groove, so that the shuttle sleeve 322 can also perform vertical undulating motion while rotating in a circular motion.

[0019] S5. By simultaneously agitating the packing material in both the circumferential and vertical directions, the packing material can be agitated from multiple directions, allowing the material to move sufficiently. This effectively prevents the Coanda effect between the static packing layer and the spray solution, improves the contact effect between the spray solution and the exhaust gas, and enhances the purification effect of the exhaust gas.

[0020] The beneficial effects of this invention are as follows: The exhaust gas is transported into the tower body through the set air intake unit. The air intake unit, through the multi-component flow channel opened obliquely on the air intake seat, can enter the tower body in a spiral upward manner. The spiral exhaust gas flow can fully fill the internal chamber of the tower body and prolong the residence time inside the tower body, so that the reaction time between the exhaust gas and the spray solution is longer, further enhancing the adsorption and removal effect of substances in the exhaust gas.

[0021] By setting up an agitation unit to agitate the filling material in the filling layer, the agitation unit, through the cooperation of the agitation component and the guide groove, can simultaneously perform circumferential agitation and vertical agitation within the filling layer. Therefore, it can agitate the filling material from multiple directions, allowing the material to move sufficiently and effectively preventing the Coanda effect between the long-term static filling layer and the spray solution. This improves the contact effect between the spray solution and the exhaust gas, thereby enhancing the purification effect of the exhaust gas. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of the spray tower for environmentally friendly waste gas treatment based on the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the spray tower for environmentally friendly waste gas treatment based on the present invention.

[0025] Figure 3 This is a schematic diagram of the internal waste gas flow track of the spray tower for environmentally friendly waste gas treatment according to the present invention.

[0026] Figure 4 This is a waveform diagram of the guide channel of the spray tower for environmentally friendly waste gas treatment according to the present invention.

[0027] Figure 5 This is a schematic diagram of the air inlet unit of the spray tower for environmentally friendly waste gas treatment according to the present invention.

[0028] Figure 6 This is a schematic diagram of the structure of the spray tower diversion channel for environmentally friendly waste gas treatment based on the present invention.

[0029] Reference numerals: 1. Tower body; 11. Solution tank; 12. Filling layer; 13. Filter layer; 14. Gas outlet pipe; 15. Guide channel; 2. Air inlet unit; 21. Air inlet pipe; 22. Air inlet seat; 23. Cover plate; 24. Diversion channel; 3. Stirring unit; 31. Main shaft; 311. Hexagonal shaft; 32. Stirring assembly; 321. Stirring rod; 322. Shuttle sleeve; 33. Motor; 4. Spraying unit; 41. Transfer box; 42. Connecting pipe; 43. Spraying frame. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Example 1

[0033] Reference Figures 1 to 6 This is the first embodiment of the present invention, which includes an environmentally friendly waste gas treatment spray tower, comprising a tower body 1, an air inlet unit 2, an agitation unit 3, and a spray unit 4. A solution tank 11 is provided inside the tower body 1, and the air inlet unit 2 extends into the solution tank 11. Two sets of filling layers 12 are provided above the solution tank 11. Each set of filling layers 12 has a wave-shaped guide groove 15 on its inner wall, and the wave structure of the guide groove 15 is connected end-to-end to form a wave-shaped annular structure. The tower body 1 is the main area for spray treatment operations, the air inlet unit 2 is the channel for waste gas to enter the tower body 1, the agitation unit 3 is used to agitate the filling material in the filling layer 12 to prevent the material from stagnating and accumulating, and the spray unit 4 is used for spraying operations. Figure 4 The wave-shaped guide groove 15 is designed with an up-and-down structure, allowing objects moving along it to change their position in the vertical direction.

[0034] Reference Figure 5 and Figure 6 The air intake unit 2 includes an air intake pipe 21 extending into the solution tank 11, an air intake seat 22 disposed on one end of the air intake pipe 21 extending into the solution tank 11, with the air intake seat 22 vertically positioned at the axial center of the solution tank 11, a cover plate 23 disposed at the top of the air intake seat 22, and multiple sets of diversion channels 24 equally divided with the axial center of the air intake seat 22 as the origin. Each set of diversion channels 24 is inclined horizontally on the air intake seat 22, and the inclination direction of the multiple sets of diversion channels 24 is the same. The air intake pipe 21 is connected to the exhaust gas source, and exhaust gas can be transported through the air intake pipe 21. The waste gas is fed into the solution tank 11. The diversion channel 24 can disperse the waste gas flow that enters through the air inlet pipe 21, and make each group of dispersed air flow horizontally outward in an inclined manner. After the air flow transported outward through the diversion channel 24 collides with the inner wall of the arc-shaped solution tank 11, it will further change its flow direction. The multiple diversion channels 24 transport the waste gas flow in the same way, so that the waste gas can be fully and evenly filled into the solution tank 11, so that there are no dead zones inside the solution tank 11, thereby allowing more waste gas to come into contact with the spray solution inside the tower body 1.

[0035] Furthermore, refer to Figure 6 and Figure 3 The airflow conveyed obliquely by the multi-component flow channel 24 collides with the arc-shaped inner wall of the solution tank 11 and moves along its arc-shaped inner wall. The airflow rises synchronously, and eventually the airflow forms multiple spiral upward airflows. The spiral upward airflow allows the waste gas to stay inside the tower body 1 for a longer time, thereby forming a longer reaction time with the spray solution. This allows the substances in the waste gas to react more fully, thereby further enhancing the adsorption and removal effect of substances in the waste gas.

[0036] Furthermore, refer to Figure 2 A filter layer 13 is provided at the top of the filling layer 12, and an air outlet pipe 14 is provided on the top side of the tower body 1. The air outlet pipe 14, the filling layer 12 and the solution tank 11 are connected. The air outlet pipe 14 is used to discharge the waste gas after being sprayed and purified. At the same time, the outer end of the air outlet pipe 14 is connected to the exhaust fan, which can assist the waste gas in the tower body 1 to flow by suction.

[0037] Furthermore, refer to Figure 2 The solution tank 11 is filled with spray solution, and the level of the solution is lower than that of the diversion tank 24. Both sets of filling layers 12 are filled with filling material. Each set of filling layers 12 has an observation window on its side. The spray solution in the solution tank 11 is connected to the spray unit 4, which enables the spray solution to be recycled. The spray solution lower than that of the diversion tank 24 can prevent it from entering the air intake unit 2 through the diversion tank 24. The spraying status inside the tower body 1 can be observed through the observation window.

[0038] Among them, reference Figure 2 The stirring unit 3 includes a main shaft 31 vertically positioned at the center of the tower body 1, which passes vertically through two sets of filling layers 12, and two sets of stirring components 32 equally distributed on the main shaft 31. The two sets of stirring components 32 are arranged in a one-to-one correspondence within the two sets of filling layers 12. The outer ends of the stirring components 32 extend into the guide groove 15. The main shaft 31 can drive the stirring components 32 to rotate. The rotating stirring components 32 are located within the filling material of the filling layer 12, thus stirring the filling material and preventing it from remaining stationary, thereby eliminating the Coanda effect. Since the ends of the stirring components 32 extend into the guide groove 15, the rotating stirring components 32 will move along the wave-shaped limit of the guide groove 15.

[0039] Among them, reference Figure 4A motor 33 is connected to the top of the main shaft 31 and is located at the top of the tower body 1. A hexagonal shaft 311 is provided at the connection position between the main shaft 31 and the stirring component 32. One end of the stirring component 32 is vertically inserted into the hexagonal shaft 311. The motor 33 can drive the main shaft 31 to rotate, thereby driving the stirring component 32 connected to the main shaft 31 to rotate. The way the stirring component 32 and the hexagonal shaft 311 are inserted makes the two mutually limit each other in the circumferential direction, so that the two can rotate synchronously.

[0040] Among them, reference Figure 4 The agitation assembly 32 includes an agitator 321 vertically fitted and inserted into a hexagonal shaft 311, with the agitator 321 and the hexagonal shaft 311 mutually limiting each other in the circumferential direction, and a spindle-shaped sleeve 322 laterally disposed on the side of the agitator 321, with the outer end of the spindle-shaped sleeve 322 extending into the guide groove 15. The agitator 321 has an overall spindle-shaped structure. The spindle-shaped structure can prevent spray solution residue and also allows it to move smoothly in the filler of the filling layer 12. The agitator 321 and the hexagonal shaft 311, which mutually limit each other in the circumferential direction, can perform circumferential rotation operations synchronously, but the two are vertically fitted... Since the vertical direction is in a sliding connection state, the stirring rod 321 can drive the shuttle sleeve 322 to move vertically on the hexagonal shaft 311. Combined with the way the end of the shuttle sleeve 322 extends into the guide groove 15, when the shuttle sleeve 322 changes position vertically along the waveform of the guide groove 15, the stirring rod 321 will move vertically synchronously along the hexagonal shaft 311. Thus, through the cooperation of the stirring rod 321 and the hexagonal shaft 311, the main shaft 31 can drive the stirring component 32 to rotate without hindering the stirring component 32 from moving vertically along the guide groove 15.

[0041] Furthermore, refer to Figure 4 The motor 33 drives the hexagonal shaft 311 to rotate via the main shaft 31. The rotating hexagonal shaft 311, in conjunction with the stirring rod 321, drives the shuttle sleeve 322 to rotate within the packing material of the filling layer 12. Simultaneously, the end of the moving shuttle sleeve 322 moves along the wave pattern of the guide groove 15, allowing the shuttle sleeve 322 to perform both circumferential and vertical undulating movements. In summary, by using the stirring unit 3 to simultaneously agitate the filling material in the filling layer 12 in both circumferential and vertical directions, the stirring operation on the filling material can be formed from multiple directions, enabling the material to move sufficiently. This effectively prevents the Coanda effect from occurring between the static packing layer and the spray solution, thereby improving the contact effect between the spray solution and the exhaust gas, and ultimately enhancing the purification effect of the exhaust gas.

[0042] Among them, reference Figure 2The spray unit 4 includes a transfer box 41 connected to the solution tank 11, a connecting pipe 42 disposed above the transfer box 41, and two sets of spray racks 43 disposed on the connecting pipe 42. The transfer box 41 can transport the spray solution from the solution tank 11 to the spray rack 43 via the connecting pipe 42 for spraying. The solution sprayed by the spray rack 43 will also be repeatedly returned to the solution tank 11 via the filling layer 12, thereby realizing the recycling of the spray solution.

[0043] Furthermore, refer to Figure 2 The spray rack 43 extends into the tower body 1, and the two sets of spray racks 43 correspond one-to-one with the two sets of filling layers 12. At the same time, each set of spray racks 43 is located above the filling material of the filling layer 12. The spray racks 43 that are higher than the filling material of the filling layer 12 create a space for waste gas reaction between the two.

[0044] Furthermore, refer to Figure 4 The spray frame 43 is equipped with multiple sets of spray nozzles arranged in a ring. The nozzles are in the shape of an inverted "Y". The Y-shaped nozzles can form multiple spray coverage angles and coverage areas, thereby effectively avoiding the generation of spray dead corners and further enhancing the spray effect.

[0045] Furthermore, refer to Figure 2 The air intake pipe 21 is connected to the inside of the air intake seat 22, and the inside of the air intake seat 22 is connected to the inner end of the diversion groove 24. The cover plate 23 is a cone structure with the small end facing upward. The cone-shaped cover plate 23 can facilitate the spray solution to fall downward, thereby avoiding the spray solution remaining on the surface of the cover plate 23.

[0046] During use, refer to Figure 3 and Figure 6 The exhaust gas is transported into the solution tank 11 through the inlet pipe 21. The diversion tank 24 disperses the exhaust gas flow from the inlet pipe 21, and each group of dispersed airflows is horizontally transported outward in an inclined manner. The airflows transported obliquely by the multiple diversion tanks 24 collide with the arc-shaped inner wall of the solution tank 11, and the airflows rise synchronously along the arc-shaped inner wall of the solution tank 11. Finally, the airflows form multiple spiral upward airflows. The spiral upward airflows allow the exhaust gas to stay inside the tower body 1 for a longer time, thereby forming a longer reaction time with the spray solution, allowing the substances in the exhaust gas to react more fully, thereby further enhancing the adsorption and removal effect of substances in the exhaust gas.

[0047] Reference Figure 2 The spiral-shaped exhaust gas flow passes through the lower filling layer 12 for adsorption reaction and continues to move upward. It is then sprayed and adsorbed by the spray frame 43. This spray tower has two sets of filling layers 12 and two sets of spray frames 43, so the exhaust gas can be sprayed twice.

[0048] Reference Figure 4 When the exhaust gas passes through the filling material of the filling layer 12, the motor 33 drives the hexagonal shaft 311 to rotate through the main shaft 31. The rotating hexagonal shaft 311, in cooperation with the stirring rod 321, drives the shuttle sleeve 322 to rotate within the filling material of the filling layer 12. At the same time, the end of the moving shuttle sleeve 322 moves along the waveform of the guide groove 15, so that the shuttle sleeve 322 can also perform vertical undulating motion while rotating in a circular motion. By simultaneously stirring the filling material in a circular and vertical direction, the stirring operation of the filling material can be formed from multiple directions, so that the material can move fully and effectively prevent the Coanda effect between the long-term static filling layer and the spray solution, thereby improving the contact effect between the spray solution and the exhaust gas, and thus improving the purification effect of the exhaust gas.

[0049] Example 2

[0050] As a second embodiment of the present invention, a method for treating waste gas using a spray tower for waste gas treatment is provided, comprising the following steps:

[0051] S1. The exhaust gas is transported into the solution tank 11 through the air inlet pipe 21. The diversion tank 24 disperses the exhaust gas flow entering through the air inlet pipe 21, and makes each group of dispersed air flow horizontally outward in an inclined manner.

[0052] S2. The airflow conveyed obliquely by the multi-component flow channel 24 collides with the arc-shaped inner wall of the solution tank 11, and the airflow rises synchronously along the arc-shaped inner wall of the solution tank 11, forming multiple spiral upward airflows. The spiral upward airflows allow the exhaust gas to stay inside the tower body 1 for a longer time, thereby forming a longer reaction time with the spray solution, so that the substances in the exhaust gas can react more fully.

[0053] S3. The spiral-shaped exhaust gas flow passes through the lower filling layer 12 for adsorption reaction and continues to move upward. It is then sprayed and adsorbed by the spray frame 43. With the two sets of filling layers 12 and the two sets of spray frames 43 working together, the exhaust gas can be sprayed twice.

[0054] S4. When the exhaust gas passes through the filling material of the filling layer 12, the motor 33 drives the hexagonal shaft 311 to rotate through the main shaft 31. The rotating hexagonal shaft 311, in cooperation with the stirring rod 321, drives the shuttle sleeve 322 to rotate in the filling material of the filling layer 12. At the same time, the end of the moving shuttle sleeve 322 will move along the waveform of the guide groove 15, so that the shuttle sleeve 322 can also perform vertical undulating motion while rotating in a circular motion.

[0055] S5. By simultaneously agitating the packing material in both the circumferential and vertical directions, the packing material can be agitated from multiple directions, allowing the material to move sufficiently. This effectively prevents the Coanda effect between the static packing layer and the spray solution, improves the contact effect between the spray solution and the exhaust gas, and enhances the purification effect of the exhaust gas.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An environmentally friendly spray tower for exhaust gas treatment, comprising a tower body (1), an air inlet unit (2), an agitation unit (3) and a spray unit (4), characterized in that: The tower body (1) has a solution tank (11) inside, and the air intake unit (2) extends into the solution tank (11). Two sets of filling layers (12) are provided above the solution tank (11). Each set of filling layers (12) has a wave-shaped guide groove (15) on its inner wall. The wave structure of the guide groove (15) is connected end to end to form a wave ring structure. The air intake unit (2) includes an air intake pipe (21) extending into the solution tank (11), an air intake seat (22) set on one end of the air intake pipe (21) extending into the solution tank (11), and the air intake seat (22) is set vertically at the axial position of the solution tank (11), a cover plate (23) set on the top of the air intake seat (22), and multiple sets of diversion channels (24) equally divided with the axial center of the air intake seat (22) as the origin, and each set of diversion channels (24) is opened on the air intake seat (22) in a horizontally inclined manner, and the inclination direction of the multiple sets of diversion channels (24) is the same; The stirring unit (3) includes a main shaft (31) vertically arranged at the center of the tower body (1), and the main shaft (31) passes through two sets of filling layers (12) in a vertical direction, and two sets of stirring components (32) equally arranged on the main shaft (31), and the two sets of stirring components (32) are arranged in the two sets of filling layers (12) in a one-to-one correspondence, and the outer end of the stirring component (32) extends into the guide groove (15); The top of the main shaft (31) is connected to a motor (33), and the motor (33) is located at the top of the tower body (1). A hexagonal shaft (311) is provided at the connection position between the main shaft (31) and the stirring component (32), and one end of the stirring component (32) is vertically inserted into the hexagonal shaft (311). The stirring assembly (32) includes a stirring rod (321) that is vertically matched and inserted into a hexagonal shaft (311), and the stirring rod (321) and the hexagonal shaft (311) are mutually limited in the circumferential direction, and a shuttle-shaped sleeve (322) is laterally arranged on the side of the stirring rod (321), and the outer end of the stirring rod (321) extends into the guide groove (15); The air intake pipe (21) is connected to the inside of the air intake seat (22), and the inside of the air intake seat (22) is connected to the inside end of the diversion groove (24).

2. The spray tower for environmentally friendly waste gas treatment according to claim 1, characterized in that: The top of the filling layer (12) is provided with a filter layer (13), and the top side of the tower body (1) is provided with an air outlet pipe (14), and the air outlet pipe (14), the filling layer (12) and the solution tank (11) are connected.

3. The spray tower for environmentally friendly waste gas treatment according to claim 2, characterized in that: The solution tank (11) is filled with a spray solution, and the horizontal height of the solution is lower than that of the diversion tank (24). Both sets of filling layers (12) are filled with filling material, and each set of filling layers (12) has an observation window on its side.

4. The spray tower for environmentally friendly waste gas treatment according to claim 1, characterized in that: The spray unit (4) includes a transfer box (41) connected to the solution tank (11), a connecting pipe (42) disposed above the transfer box (41), and two sets of spray racks (43) disposed on the connecting pipe (42).

5. The spray tower for environmentally friendly waste gas treatment according to claim 4, characterized in that: The spray rack (43) extends into the tower body (1), and the two sets of spray racks (43) correspond one-to-one with the two sets of filling layers (12). At the same time, each set of spray racks (43) is located above the filling material of the filling layer (12). Multiple sets of nozzles are evenly arranged in a ring on the spray rack (43), and the nozzles are in the shape of an inverted "Y" shape.

6. The spray tower for environmentally friendly waste gas treatment according to claim 5, characterized in that: The cover plate (23) is a cone structure with the smaller end facing upwards.

7. A method for treating waste gas using a spray tower as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1. The exhaust gas is transported into the solution tank (11) through the air inlet pipe (21). The diversion tank (24) disperses the exhaust gas flow entering through the air inlet pipe (21) and makes each group of dispersed air flow horizontally outward in an inclined manner. S2. The airflow conveyed obliquely by the multi-component flow channel (24) collides with the arc-shaped inner wall of the solution tank (11), and the airflow will rise synchronously along the arc-shaped inner wall of the solution tank (11) to form multiple spiral rising airflows. The spiral rising airflows allow the exhaust gas to stay inside the tower body (1) for a longer time, thereby forming a longer reaction time with the spray solution, so that the gas in the exhaust gas can react more fully. S3. After the spiral exhaust gas flow passes through the lower filling layer (12) for adsorption reaction, it continues to move upward and is then sprayed and adsorbed by the spray frame (43). With the two sets of filling layers (12) and the two sets of spray frames (43) working together, the exhaust gas can be sprayed twice. S4. When the exhaust gas passes through the filling material of the filling layer (12), the motor (33) drives the hexagonal shaft (311) to rotate through the main shaft (31). The rotating hexagonal shaft (311) drives the shuttle sleeve (322) to rotate in the filling material of the filling layer (12) through the cooperation of the stirring rod (321). At the same time, the end of the moving stirring rod (321) will move along the waveform of the guide groove (15), so that the stirring rod (321) can also perform vertical undulating motion while rotating in a circular motion. S5. By simultaneously agitating the packing material in both the circumferential and vertical directions, the packing material can be agitated from multiple directions, allowing the material to move sufficiently. This effectively prevents the Coanda effect between the static packing layer and the spray solution, improves the contact effect between the spray solution and the exhaust gas, and enhances the purification effect of the exhaust gas.

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