Aeration tank assembly for sewage treatment

Abstract

The present application relates to sewage treatment field, it discloses a kind of sewage treatment aeration tank assemblies, including aeration tank, aeration assembly and stirring assembly, stirring assembly includes the stirring component at the bottom of aeration tank and the traction component for pulling stirring component reciprocating movement along the length direction of aeration tank, stirring component includes scraper seat, the extension direction of scraper seat is parallel to the width direction of aeration tank, the two sides of scraper seat along aeration tank length direction are arranged obliquely and the distance between the two is decreasing along vertical direction and from bottom to top, the inside of scraper seat is hollow and is provided with pneumatic motor, pusher is arranged on the two sides of scraper seat and arranged obliquely, the upper surface of scraper seat is provided with stirring piece, stirring piece is arrayed with several along the extension direction of scraper seat, pusher is used to pull active sludge that is scooped up by scraper seat to stirring piece moves, pneumatic motor is used to drive pusher and stirring piece to rotate.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more specifically to an aeration tank assembly for wastewater treatment. Background Technology

[0002] The aeration tank is the core structure in the activated sludge wastewater treatment process. Its main function is to forcibly introduce air (or oxygen) into the wastewater, providing the aerobic microorganisms (activated sludge) with the oxygen needed for growth and metabolism. This causes the microorganisms to aggregate and form flocculent sludge. These microorganisms feed on organic pollutants in the wastewater, decomposing them into harmless substances such as carbon dioxide and water through their life activities, thus purifying the wastewater. Therefore, oxygen supply and agitation are two crucial factors affecting the wastewater treatment results in the aeration tank. Oxygen supply refers to providing the aerobic microorganisms with the oxygen necessary for survival, while agitation ensures the even distribution of the aerobic microorganisms (activated sludge) within the tank. The combination of these two factors ensures uniform contact between the aerobic microorganisms and the pollutants in the wastewater, providing the aerobic microorganisms with a favorable living environment, thereby achieving optimal wastewater treatment results.

[0003] In existing technologies, air is supplied to aerators at the bottom of the tank using equipment such as blowers. This generates a large number of tiny bubbles that surge upwards, carrying the surrounding water and sludge upwards to achieve oxygen supply and uniform distribution. However, this method has some shortcomings. Specifically, the upward traction force of the bubbles is relatively weak. Although it can pull some small activated sludge particles, some larger activated sludge particles are not pulled or have a weak tendency to move, resulting in insufficient uniformity of distribution. In addition, because this part of the activated sludge is clumped together, a higher oxygen content is required nearby to meet the survival needs of aerobic microorganisms in the activated sludge and their ability to decompose organic matter. However, since the aerators distribute the air in the tank relatively evenly, the aerobic microorganisms in this part of the activated sludge are not in a good production environment, and their ability to decompose organic matter is not maximized.

[0004] Based on the above, the present invention proposes an aeration tank assembly for wastewater treatment. Summary of the Invention

[0005] To address the problems mentioned in the background above, the present invention provides an aeration tank assembly for wastewater treatment.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0007] An aeration tank assembly for wastewater treatment includes an aeration tank, an aeration assembly, and a mixing assembly;

[0008] The mixing assembly includes a mixing component located at the bottom of the aeration tank and a traction component for pulling the mixing component to reciprocate along the length of the aeration tank.

[0009] The mixing component includes a scraper seat, the extension direction of which is parallel to the width direction of the aeration tank. The two sides of the scraper seat along the length direction of the aeration tank are arranged at an angle and the distance between them is vertical and decreases from bottom to top. The scraper seat is hollow inside and is equipped with a pneumatic motor.

[0010] Pushing elements are provided on both sides of the scraper seat which are arranged at an angle. A stirring element is provided on the upper surface of the scraper seat. Several stirring elements are arranged in an array along the extension direction of the scraper seat. The pushing elements are used to pull the activated sludge scooped up by the scraper seat towards the stirring elements.

[0011] The pneumatic motor is used to drive the pusher and the agitator to rotate.

[0012] Furthermore, the pusher includes a pusher shaft, the axis of which is parallel to the width of the aeration tank, and pusher blades are arranged radially on the outer surface of the pusher shaft, with several pusher blades arranged in an array along the circumference of the pusher shaft.

[0013] The push shaft is hollow and is connected to the inner cavity of the scraper seat. The push blade is hollow and is connected to the inner cavity of the push shaft. Several push air holes are arrayed on the outer surface of the push blade.

[0014] The push shaft and the pneumatic motor form a power connection.

[0015] Furthermore, the stirring component includes a vertically arranged stirring shaft, and blade units are provided on the outer circular surface of the stirring shaft. Several blade units are arranged in an array along the axial direction of the stirring shaft. Each blade unit includes rotating blades arranged on the outer circular surface of the stirring shaft. Several rotating blades are arranged in an array along the circumferential direction of the stirring shaft.

[0016] The pneumatic motor and the stirring shaft form a power connection.

[0017] Furthermore, the traction component includes a support body set on one side of the aeration tank, and a timing belt is set on the support body, with the traction direction of the timing belt parallel to the length direction of the aeration tank.

[0018] The upper surface of the scraper seat is provided with a connecting rod, and the upper end of the connecting rod is provided with a guide hole arranged vertically. A pin is slidably installed in the guide hole, and the end of the pin is connected to the timing belt.

[0019] Furthermore, the lower end of the connecting rod extends into the scraper seat and connects to the air inlet of the pneumatic motor, while the air outlet of the pneumatic motor is connected to the scraper seat.

[0020] The side of the connecting rod is provided with a connecting channel that communicates with the air inlet of the pneumatic motor.

[0021] Furthermore, a flexible hose is provided at the end of the connecting channel, and an air compressor is connected to the end of the flexible hose.

[0022] Furthermore, an air supply component is provided at the end of the connecting channel;

[0023] The air supply component includes two side seats arranged facing each other, with a distance between the upper ends of the two side seats and the lower ends of the two side seats connected. An air supply zone is formed between the two side seats, which is open at the upper end, closed at the lower end, and whose length direction is parallel to the length direction of the aeration tank.

[0024] A rotating roller is provided between the two side seats. There are two rotating rollers, which are located at both ends of the air supply area. A conveyor belt is provided between the two rotating rollers. The upper surface of the conveyor belt blocks the upper opening of the air supply area.

[0025] The upper surface of the conveyor belt is provided with a connection port, and the upper opening of the connection port is connected to the end of the connection channel;

[0026] The side seat has a side hole, and a side connection nozzle is provided at the opening of the side hole. An air compressor is connected to the end of the side connection nozzle.

[0027] Furthermore, the aeration assembly includes a main pipe located above the aeration tank, the main pipe extending parallel to the length of the aeration tank, one end of the main pipe being closed and the other end being connected to a blower.

[0028] Aeration components are installed on the main pipeline, and several aeration components are arranged in an array along the extension direction of the main pipeline.

[0029] The aeration components include branch pipes connected to the main pipe. The extension direction of the branch pipes is parallel to the width direction of the aeration tank. There are two branch pipes, which are located on both sides of the main pipe along its own center line.

[0030] Aeration units are installed on the branch pipes, and several aeration units are arranged in an array along the extension direction of the branch pipes.

[0031] The aeration unit includes vertically arranged aeration pipes. The upper end of the aeration pipes is connected to the branch pipes and the aeration pipes are located below the branch pipes. The lower end of the aeration pipes is equipped with an aeration head that extends into the aeration tank and is close to the bottom of the aeration tank.

[0032] Furthermore, the aeration head includes a cone, which is hollow inside. The diameter of the cone decreases from top to bottom. A connecting hole is provided at the upper end of the cone. A protruding tube is provided at the upper opening of the connecting hole. The protruding tube is movably connected to the lower end of the aeration pipe. Side aeration holes are provided on the outer surface of the cone. Several side aeration holes are arranged in an array along the circumference of the cone. Bottom aeration holes are provided at the lower end of the cone.

[0033] Compared with the prior art, the beneficial effects of this invention are as follows:

[0034] 1. When the blower is running, air flows into the aeration head through the main pipe, branch pipe, and aeration pipe, and enters the aeration tank through the side aeration holes and bottom aeration holes. Under the reaction force, the cone rotates, that is, the aeration head rotates, thereby achieving a better aeration effect.

[0035] II. This project utilizes an integrated system at the bottom of the aeration tank, employing pneumatically driven technology to uniformly suspend activated sludge within the tank. Its technological advantages lie in:

[0036] Technical effect 1: This case involves setting a scraper seat that moves back and forth along the length of the aeration tank at the bottom of the tank. The inclined surface of the scraper seat can scoop up the activated sludge at the bottom of the tank, which can effectively prevent the activated sludge from sinking to the bottom of the tank, causing anaerobic fermentation, producing odor, and making it impossible to effectively treat the wastewater.

[0037] Technical Effect 2: This project utilizes a unique pipeline setup for air supply and employs pneumatically driven agitators. On one hand, the air released by the pneumatic motor is part of the aeration process, further enhancing the aeration effect. On the other hand, when there is a large amount of activated sludge settled in a certain area at the bottom of the tank, the resistance encountered when the sludge is scooped up and pushed to the position of the rotating blades is greater. Consequently, the load on the pneumatic motor is greater, requiring more compressed air to drive the pusher blades. Ultimately, a larger amount of air is released after performing work, mixing and contacting with the pushed activated sludge to achieve adaptive aeration and provide a good living environment for the aerobic microorganisms in the activated sludge. Similarly, when there is less activated sludge settled in a certain area at the bottom of the tank, the resistance encountered when the sludge is scooped up and pushed to the position of the rotating blades is less, the load on the pneumatic motor is smaller, and less compressed air is required to drive the pusher blades.

[0038] In short, this system can adaptively match the amount of air to mix with the activated sludge based on the amount of activated sludge being shoveled up, thus ensuring a balanced supply of oxygen per unit volume of activated sludge.

[0039] It is important to note that in pneumatic motor technology, the torque generated by the internal air pressure of the pneumatic motor and the resistance torque applied by the external load are dynamically balanced. When the load on the pneumatic motor increases, its speed begins to decrease, which will be detected by the air pressure regulation system (such as a pressure reducing valve) or a more precise flow control valve. The system will respond accordingly, for example, by increasing the opening of the intake valve to allow more compressed air to enter the pneumatic motor at a higher speed, thus maintaining the set speed. This is achievable with existing technology and will not be elaborated upon.

[0040] Technical effect 3: After the activated sludge is pushed to the rotating blades, it will be dispersed and splashed in all directions by the rotating blades, so that the activated sludge is more evenly distributed in the aeration tank. Furthermore, the more activated sludge is scooped up, the greater the resistance to the rotating blades, and the slower the rotation speed will be. This allows the large amount of activated sludge to have more contact time with the large amount of air, ensuring that the aerobic microorganisms in the activated sludge are in a good living environment. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0042] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0043] Figure 3 This is a schematic diagram of the aeration component.

[0044] Figure 4 This is a schematic diagram of the aeration head structure;

[0045] Figure 5 This is a schematic diagram of the stirring assembly.

[0046] Figure 6 This is a sectional view of the connecting rod, timing belt, and air supply components.

[0047] Figure 7 This is a cross-sectional view of the connecting rod and the stirring component;

[0048] Figure 8 This is a schematic diagram of the connecting rod and the stirring component.

[0049] The labels in the attached diagram are:

[0050] 100. Aeration tank; 200. Aeration assembly; 201. Main pipe; 202. Branch pipe; 203. Aeration pipe; 204. Aeration head; 2041. Cone; 2042. Protruding pipe; 2043. Side aeration hole; 2044. Bottom aeration hole; 300. Mixing assembly; 301. Synchronous belt; 302. Connecting rod; 3021. Guide hole; 3022. Pin; 303. Mixing component; 3031. Scraper seat; 3032. Pneumatic motor; 3033. Pushing blade; 3034. Pushing air hole; 3035. Rotating blade; 304. Air supply component; 3041. Side seat; 3042. Conveyor belt; 3043. Side connecting nozzle; 3044. Connection port. Detailed Implementation

[0051] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0052] Reference Figures 1-8 An aeration tank assembly for wastewater treatment includes an aeration tank 100, an aeration component 200, and a stirring component 300. The aeration component 200 is used to aerate the aeration tank 100, providing a good living environment for aerobic microorganisms in activated sludge. The stirring component 300 is used to ensure that the aerobic microorganisms in activated sludge are evenly distributed in the aeration tank 100, and that the aerobic microorganisms are in a good living environment during the process.

[0053] Reference Figure 3 The aeration component 200 includes a main pipe 201 located above the aeration tank 100. The main pipe 201 extends parallel to the length direction of the aeration tank 100. One end of the main pipe 201 is closed, and the other end is connected to a blower. The blower is a technology that can be implemented in the prior art and is not shown in the figure.

[0054] Aeration components are installed on the main pipe 201, and several aeration components are arranged in an array along the extension direction of the main pipe 201.

[0055] The aeration component includes a branch pipe 202 connected to the main pipe 201. The extension direction of the branch pipe 202 is parallel to the width direction of the aeration tank 100. There are two branch pipes 202, which are located on both sides of the main pipe 201 along its own center line.

[0056] An aeration unit is installed on the branch pipe 202, and several aeration units are arranged in an array along the extension direction of the branch pipe 202.

[0057] The aeration unit includes an aeration pipe 203 arranged vertically, the upper end of which is connected to a branch pipe 202 and the aeration pipe 203 is located below the branch pipe 202.

[0058] An aeration head 204 is provided at the lower end of the aeration pipe 203. The aeration head 204 extends into the aeration tank 100 and is close to the bottom of the aeration tank 100.

[0059] Furthermore, refer to Figure 4The aeration head 204 includes a cone 2041, which is hollow inside. The diameter of the cone 2041 decreases from top to bottom. A connecting hole is provided at the upper end of the cone 2041. A protruding tube 2042 is provided at the upper opening of the connecting hole. The protruding tube 2042 is movably connected to the lower end of the aeration tube 203. Side aeration holes 2043 are provided on the outer circular surface of the cone 2041. Several side aeration holes 2043 are arranged in an array along the circumference of the cone 2041. Bottom aeration holes 2044 are provided at the lower end of the cone 2041.

[0060] The working process of the aeration component 200 is as follows:

[0061] When the blower is running, air flows into the aeration head 204 through the main pipe 201, the branch pipe 202, and the aeration pipe 203, and enters the aeration tank 100 through the side aeration holes 2043 and the bottom aeration holes 2044 to achieve the purpose of aeration.

[0062] Furthermore, since the convex tube 2042 and the aeration tube 203 are movably connected, and since the side aeration hole 2043 is arc-shaped, the cone 2041 rotates under the reaction force of the air ejected through the side aeration hole 2043, that is, the aeration head 204 rotates, which can further improve the aeration effect and make the oxygen distribution in the aeration tank 100 more balanced.

[0063] Reference Figure 2 and Figure 5 The stirring assembly 300 includes a stirring component 303 located at the bottom of the aeration tank 100 and a traction component for traction of the stirring component 303 to reciprocate along the length of the aeration tank 100.

[0064] Reference Figure 7 and Figure 8 The stirring component 303 includes a scraper seat 3031. The extension direction of the scraper seat 3031 is parallel to the width direction of the aeration tank 100. The scraper seat 3031 is arranged at an angle on two sides along the length direction of the aeration tank 100, and the distance between the two sides is vertical and decreases from bottom to top.

[0065] The scraper seat 3031 is hollow inside and is equipped with a pneumatic motor 3032.

[0066] The scraper seat 3031 is provided with pushers on both sides of its inclined arrangement. The pushers include a pusher shaft, the axis of which is parallel to the width direction of the aeration tank 100. Pusher blades 3033 are arranged radially on the outer circular surface of the pusher shaft. Furthermore, several pusher blades 3033 are arranged in an array along the circumferential direction of the pusher shaft.

[0067] The push shaft is hollow and is connected to the inner cavity of the scraper seat 3031. The push blade 3033 is hollow and is connected to the inner cavity of the push shaft. The outer surface of the push blade 3033 is arrayed with several push air holes 3034.

[0068] The upper surface of the scraper seat 3031 is provided with a stirring element, and further, several stirring elements are arranged in an array along the extending direction of the scraper seat 3031.

[0069] The stirring component includes a vertically arranged stirring shaft. The outer circular surface of the stirring shaft is provided with blade units. Several blade units are arranged in an array along the axial direction of the stirring shaft. Each blade unit includes a rotating blade 3035 disposed on the outer circular surface of the stirring shaft. Several rotating blades 3035 are arranged in an array along the circumferential direction of the stirring shaft.

[0070] Furthermore, the pneumatic motor 3032 is connected to the push shaft and the stirring shaft, and the pneumatic motor 3032 drives the push shaft and the stirring shaft to rotate. As for the power transmission route between the three, it can be achieved using existing technology and will not be described in detail.

[0071] Furthermore, when the push shaft rotates together with the push blade 3033, the push blade 3033 pulls the object toward the upper surface of the scraper seat 3031, that is, toward the stirring component.

[0072] Reference Figure 6 and Figure 7 The traction component includes a support body disposed on one side of the aeration tank 100, and a timing belt 301 is disposed on the support body. The traction direction of the timing belt 301 is parallel to the length direction of the aeration tank 100.

[0073] A connecting rod 302 is provided on the upper surface of the scraper seat 3031. One end of the connecting rod 302 extends into the scraper seat 3031 and is connected to the air inlet of the pneumatic motor 3032. The air outlet of the pneumatic motor 3032 is connected to the scraper seat 3031. The discharged air is finally output through the push air hole 3034.

[0074] The other end of the connecting rod 302 is provided with a guide hole 3021 arranged vertically. A pin 3022 is slidably disposed in the guide hole 3021. The end of the pin 3022 is connected to the synchronous belt 301. Therefore, when the synchronous belt 301 is started, it can move the pin 3022. Through the cooperation between the pin 3022 and the guide hole 3021, the connecting rod 302 can be pulled to reciprocate along the length of the aeration tank 100. The connecting rod 302 pulls the stirring component 303 to reciprocate together.

[0075] The pneumatic motor 3032 is driven by a continuous supply of compressed air, which can be supplied in the following ways:

[0076] Firstly, a relatively long flexible hose can be directly installed, with one end connected to the air inlet of the pneumatic motor 3032 and the other end connected to the air compressor. However, this method requires a relatively long hose, and the hose moves back and forth frequently and continuously along with the stirring component 303, which can easily lead to the hose getting tangled and damaged.

[0077] Secondly, refer to Figure 5 The side of the connecting rod 302 is provided with a connecting channel that communicates with the air inlet of the pneumatic motor 3032. The end of the connecting channel is located outside the aeration tank 100 and is connected to the air compressor through the air supply component 304.

[0078] Specifically, refer to Figure 6 The air supply component 304 includes two side seats 3041 arranged facing each other. There is a distance between the upper ends of the two side seats 3041 and the lower ends of the two side seats 3041 are connected. That is to say, an air supply area is formed between the two side seats 3041 with an open upper end, a closed lower end, and a length direction parallel to the length direction of the aeration tank 100.

[0079] A rotating roller is provided between the two side seats 3041. There are two rotating rollers, which are located at both ends of the air supply area. A conveyor belt 3042 is provided between the two rotating rollers. The upper surface of the conveyor belt 3042 blocks the upper opening of the air supply area. Therefore, the air supply area is in a closed state.

[0080] The upper surface of the conveyor belt 3042 is provided with a connection port 3044. The upper opening of the connection port 3044 is connected to the end of the connection channel. Therefore, the air supply area is connected to the air inlet of the pneumatic motor 3032.

[0081] The side seat 3041 has a side hole on its side, and a side connecting nozzle 3043 is provided at the opening of the side hole. The end of the side connecting nozzle 3043 is connected to the air compressor. The air compressor is not shown in the figure. Therefore, the compressed air provided by the air compressor is transmitted to the pneumatic motor 3032 through the air supply area to make it run.

[0082] Working principle of the invention:

[0083] When the blower is running, air flows into the aeration head through the main pipe, branch pipe, and aeration pipe, and enters the aeration tank through the side aeration holes and bottom aeration holes. Under the reaction force, the cone rotates, that is, the aeration head rotates, thereby achieving a better aeration effect.

[0084] at the same time:

[0085] This project utilizes an integrated system at the bottom of the aeration tank, employing pneumatically driven technology to uniformly suspend activated sludge within the tank. Its technological advantages include:

[0086] Technical effect 1: This case involves setting a scraper seat that moves back and forth along the length of the aeration tank at the bottom of the tank. The inclined surface of the scraper seat can scoop up the activated sludge at the bottom of the tank, which can effectively prevent the activated sludge from sinking to the bottom of the tank, causing anaerobic fermentation, producing odor, and making it impossible to effectively treat the wastewater.

[0087] Technical Effect 2: This project utilizes a unique pipeline setup for air supply and employs pneumatically driven agitators. On one hand, the air released by the pneumatic motor is part of the aeration process, further enhancing the aeration effect. On the other hand, when there is a large amount of activated sludge settled in a certain area at the bottom of the tank, the resistance encountered when the sludge is scooped up and pushed to the position of the rotating blades is greater. Consequently, the load on the pneumatic motor is greater, requiring more compressed air to drive the pusher blades. Ultimately, a larger amount of air is released after performing work, mixing and contacting with the pushed activated sludge to achieve adaptive aeration and provide a good living environment for the aerobic microorganisms in the activated sludge. Similarly, when there is less activated sludge settled in a certain area at the bottom of the tank, the resistance encountered when the sludge is scooped up and pushed to the position of the rotating blades is less, the load on the pneumatic motor is smaller, and less compressed air is required to drive the pusher blades.

[0088] In short, this system can adaptively match the amount of air to mix with the activated sludge based on the amount of activated sludge being shoveled up, thus ensuring a balanced supply of oxygen per unit volume of activated sludge.

[0089] It is important to note that in pneumatic motor technology, the torque generated by the internal air pressure of the pneumatic motor and the resistance torque applied by the external load are dynamically balanced. When the load on the pneumatic motor increases, its speed begins to decrease, which will be detected by the air pressure regulation system (such as a pressure reducing valve) or a more precise flow control valve. The system will respond accordingly, for example, by increasing the opening of the intake valve to allow more compressed air to enter the pneumatic motor at a higher speed, thus maintaining the set speed. This is achievable with existing technology and will not be elaborated upon.

[0090] Technical effect 3: After the activated sludge is pushed to the rotating blades, it will be dispersed and splashed in all directions by the rotating blades, so that the activated sludge is more evenly distributed in the aeration tank. Furthermore, the more activated sludge is scooped up, the greater the resistance to the rotating blades, and the slower the rotation speed will be. This allows the large amount of activated sludge to have more contact time with the large amount of air, ensuring that the aerobic microorganisms in the activated sludge are in a good living environment.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An aeration tank assembly for wastewater treatment, comprising an aeration tank (100), characterized in that, It also includes an aeration component (200) and a stirring component (300); The mixing assembly (300) includes a mixing component (303) located at the bottom of the aeration tank (100) and a traction component for reciprocating the mixing component (303) along the length of the aeration tank (100); The stirring component (303) includes a scraper seat (3031), the extension direction of the scraper seat (3031) is parallel to the width direction of the aeration tank (100), the two sides of the scraper seat (3031) along the length direction of the aeration tank (100) are arranged at an inclination and the distance between them is vertical and decreases from bottom to top. The scraper seat (3031) is hollow inside and is equipped with a pneumatic motor (3032). Pushing elements are provided on both sides of the scraper seat (3031) which are arranged at an inclination. A stirring element is provided on the upper surface of the scraper seat (3031). Several stirring elements are arranged in an array along the extension direction of the scraper seat (3031). The pushing elements are used to pull the activated sludge scooped up by the scraper seat (3031) towards the stirring element. The pneumatic motor (3032) is used to drive the pusher and the agitator to rotate; The pusher includes a pusher shaft, the axis of which is parallel to the width of the aeration tank (100), and pusher blades (3033) are arranged radially on the outer surface of the pusher shaft. Several pusher blades (3033) are arranged in an array along the circumferential direction of the pusher shaft. The push shaft is hollow and is connected to the inner cavity of the scraper seat (3031). The push blade (3033) is hollow and is connected to the inner cavity of the push shaft. The outer surface of the push blade (3033) is arrayed with several push air holes (3034). The push shaft and the pneumatic motor (3032) form a power connection; The stirring component includes a vertically arranged stirring shaft, and blade units are provided on the outer circular surface of the stirring shaft. Several blade units are arranged in an array along the axial direction of the stirring shaft. Each blade unit includes a rotating blade (3035) arranged on the outer circular surface of the stirring shaft. Several rotating blades (3035) are arranged in an array along the circumferential direction of the stirring shaft. The pneumatic motor (3032) and the stirring shaft form a power connection; The traction component includes a support body set on one side of the aeration tank (100), and a timing belt (301) is provided on the support body. The traction direction of the timing belt (301) is parallel to the length direction of the aeration tank (100). A connecting rod (302) is provided on the upper surface of the scraper seat (3031). A guide hole (3021) with a vertically arranged guiding direction is provided at the upper end of the connecting rod (302). A pin (3022) is slidably provided in the guide hole (3021). The end of the pin (3022) is connected to the synchronous belt (301). The lower end of the connecting rod (302) extends into the scraper seat (3031) and is connected to the air inlet of the pneumatic motor (3032). The air outlet of the pneumatic motor (3032) is connected to the scraper seat (3031). The side of the connecting rod (302) is provided with a connecting channel that communicates with the air inlet of the pneumatic motor (3032).

2. The aeration tank assembly for wastewater treatment according to claim 1, characterized in that, A flexible hose is installed at the end of the connecting channel, and an air compressor is connected to the end of the flexible hose.

3. The aeration tank assembly for wastewater treatment according to claim 1, characterized in that, An air supply component (304) is provided at the end of the connecting channel. The air supply component (304) includes two side seats (3041) arranged facing each other. There is a distance between the upper ends of the two side seats (3041), and the lower ends of the two side seats (3041) are connected. An air supply area is formed between the two side seats (3041) with an open upper end, a closed lower end, and a length direction parallel to the length direction of the aeration tank (100). A rotating roller is provided between the two side seats (3041). There are two rotating rollers located at both ends of the air supply area. A conveyor belt (3042) is provided between the two rotating rollers. The upper surface of the conveyor belt (3042) blocks the upper opening of the air supply area. The upper surface of the conveyor belt (3042) is provided with a connection port (3044), and the upper opening of the connection port (3044) is connected to the end of the connection channel; The side seat (3041) has a side hole on its side, and a side connecting nozzle (3043) is provided at the opening of the side hole. An air compressor is connected to the end of the side connecting nozzle (3043).

4. The aeration tank assembly for wastewater treatment according to claim 1, characterized in that, The aeration assembly (200) includes a main pipe (201) located above the aeration tank (100). The main pipe (201) extends parallel to the length of the aeration tank (100). One end of the main pipe (201) is closed and the other end is connected to a blower. Aeration components are installed on the main pipe (201), and several aeration components are arranged in an array along the extension direction of the main pipe (201); The aeration component includes a branch pipe (202) connected to the main pipe (201). The extension direction of the branch pipe (202) is parallel to the width direction of the aeration tank (100). There are two branch pipes (202) and they are located on both sides of the main pipe (201) along its own center line. An aeration unit is provided on the branch pipe (202), and several aeration units are arranged in an array along the extension direction of the branch pipe (202); The aeration unit includes an aeration pipe (203) arranged vertically. The upper end of the aeration pipe (203) is connected to the branch pipe (202) and the aeration pipe (203) is located below the branch pipe (202). An aeration head (204) is provided at the lower end of the aeration pipe (203). The aeration head (204) extends into the aeration tank (100) and is close to the bottom of the aeration tank (100).

5. An aeration tank assembly for wastewater treatment according to claim 4, characterized in that, The aeration head (204) includes a cone (2041), which is hollow inside. The diameter of the cone (2041) decreases from top to bottom. A connecting hole is provided at the upper end of the cone (2041). A protruding tube (2042) is provided at the upper opening of the connecting hole. The protruding tube (2042) is movably connected to the lower end of the aeration pipe (203). Side aeration holes (2043) are provided on the outer circular surface of the cone (2041). Several side aeration holes (2043) are arranged in an array along the circumference of the cone (2041). Bottom aeration holes (2044) are provided at the lower end of the cone (2041).

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