Efficient sewage treatment aeration tank
By introducing motor-driven stirring rods and blower jets into the aeration tank, the problem of insufficient mixing of sewage and activated sludge is solved, improving oxygen transfer efficiency and sewage treatment effect. The cleaning components ensure the tank walls are clean and promote microbial activity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-14
AI Technical Summary
In existing wastewater treatment aeration tanks, insufficient mixing of wastewater and activated sludge leads to low dissolved oxygen transfer efficiency and inadequate contact between pollutants and microorganisms, thus affecting treatment efficiency.
The mixing components include a motor-driven stirring rod and a blower jet nozzle, which achieves thorough stirring and uniform mixing of wastewater and activated sludge. The jet nozzle releases air bubbles to increase the air contact area, and the cleaning components remove impurities from the tank walls.
It improves wastewater treatment efficiency, ensures microbial activity, enhances oxygen transfer efficiency, maintains stable water quality in the pool, and prevents impurities from accumulating.
Smart Images

Figure CN224118856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-efficiency sewage treatment aeration tank technology, and in particular to a high-efficiency sewage treatment aeration tank. Background Technology
[0002] With the acceleration of global industrialization and urbanization, wastewater discharge has increased dramatically. Industrial production, such as chemical, pharmaceutical, and dyeing industries, discharges wastewater with complex compositions, containing large amounts of toxic and harmful substances and high concentrations of organic matter. Domestic sewage discharge is also increasing due to population growth and improved living standards, with rising levels of nutrients such as nitrogen and phosphorus. Direct discharge of untreated wastewater can cause serious pollution to water bodies, soil, and other ecological environments, leading to eutrophication, biodiversity loss, and threatening human health and drinking water safety. To address these severe environmental challenges, countries have formulated and continuously tightened wastewater discharge standards, prompting continuous innovation in wastewater treatment technologies and placing higher demands on the efficiency and effectiveness of aeration tanks.
[0003] The applicant discovered through a search that a Chinese patent, "A High-Efficiency Wastewater Treatment Aeration Tank," with publication (announcement) number "CN213326953U," discloses a sludge inlet pipe, a blower aeration tank, a secondary tank, an activated sludge pipeline, and a sludge outlet pipe. After aeration, the sludge enters the secondary tank, water is discharged through the outlet pipe, and the sludge enters the activated sludge pipeline. The activated sludge then enters the blower aeration tank for further aeration. However, this patent fails to adequately mix the wastewater and activated sludge within the tank. Furthermore, during the mixing process, air in the form of bubbles is pumped to the bottom of the tank. In practical use, insufficient contact between pollutants and microorganisms may occur, resulting in low dissolved oxygen transfer efficiency. Therefore, we propose a high-efficiency wastewater treatment aeration tank. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency wastewater treatment aeration tank to solve the problem mentioned in the background art that the wastewater and activated sludge in the tank cannot be fully stirred. At the same time, during the stirring process, air in the form of bubbles is transported to the bottom of the tank, which may result in insufficient contact between pollutants and microorganisms in actual use, thus leading to the problem of dissolved oxygen transfer efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency sewage treatment aeration tank, comprising an aeration tank body, a sunshade provided on the top of the aeration tank body, a mixing component provided inside and at the bottom of the aeration tank body, the mixing component comprising a motor and a blower, the motor being connected to a first pulley via a drive rod, the first pulley being connected to a second pulley and a third pulley via a belt, and the blower being connected to a branch pipe and a jet nozzle via a conveying pipe and a connecting pipe.
[0006] As a preferred embodiment, the motor is fixedly installed on the right outer wall of the aeration tank body, one end of the drive rod is fixedly connected to the output end of the motor, and the other end of the drive rod is fixedly connected to the inside of the first pulley. The first pulley, the second pulley, and the third pulley are connected by belt drive.
[0007] As a preferred embodiment, connecting rods are fixedly connected to the left outer walls of the first pulley, the second pulley, and the third pulley. The outer walls of the three sets of connecting rods are rotatably connected to the right inner wall of the aeration tank body, and the left ends of the three sets of connecting rods are rotatably connected to the left inner wall of the aeration tank body. Multiple sets of stirring rods distributed at equal intervals are fixedly connected to the outer walls of the three sets of connecting rods.
[0008] As a preferred embodiment, the blower's output port is fixedly connected to the right end of the conveying pipe, the left end of the conveying pipe is fixedly connected to the inside of the connecting pipe, multiple sets of branch pipes are provided, and the multiple sets of branch pipes are fixedly connected to the inner wall of the connecting pipe at equal intervals. Multiple sets of jet nozzles are also provided, and the multiple sets of jet nozzles are fixedly connected to the upper surface of the branch pipes at equal intervals. The conveying pipe, connecting pipe, and branch pipes are all fixedly connected to the bottom inner wall of the aeration tank body, and multiple sets of grooves are formed on the inner bottom wall of the aeration tank body.
[0009] As a preferred embodiment, a cleaning assembly is provided inside and outside the aeration tank body. The cleaning assembly includes a water pump, the output port of which is fixedly connected to an output pipe, and the right end of the output pipe is fixedly connected to a circulation pipe.
[0010] As a preferred embodiment, the circulation pipe is fixedly installed on the inner wall of the aeration tank body, and multiple sets of spray heads are fixedly connected to the outer wall of the circulation pipe. The water pump inlet is fixedly connected to a water tank, and an inlet pipe is fixedly installed on the top of the water tank.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. With the mixing components in place, the operator can start the motor, which will drive multiple stirring rods on the three connecting rods to rotate synchronously and efficiently, thoroughly mixing the sewage and activated sludge in the main body of the aeration tank, ensuring that the two are evenly mixed. At the same time, the operator can start the blower, which will deliver air to the branch pipes through the conveying pipes and connecting pipes. Then, multiple jet nozzles on the branch pipes will release the air into the main body of the aeration tank in the form of bubbles. This will ensure that the air is evenly distributed in the tank, increasing the contact area between sewage and air, thereby improving the oxygen transfer efficiency. The combination of these two factors can create a suitable living environment for microorganisms, making their metabolism active, and thus greatly improving the sewage treatment efficiency.
[0013] 2. Using the cleaning components, staff start the water pump to extract clean water from the tank and spray it onto the inner wall of the aeration tank through the spray nozzles on the circulation pipe. This washes away various impurities attached to the tank wall, preventing their accumulation and ensuring the tank wall is clean and tidy. It also helps maintain the stability of the wastewater quality in the aeration tank, providing a good water quality environment for the survival of microorganisms and the wastewater treatment reaction. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the overall partial structure of this utility model;
[0016] Figure 3 This is one of the schematic diagrams of the hybrid component structure of this utility model;
[0017] Figure 4 This is the second schematic diagram of the hybrid component structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the cleaning component structure of this utility model.
[0019] In the diagram: 1. Aeration tank main body; 2. Sunshade canopy; 3. Mixing component; 301. Motor; 302. Drive rod; 303. First pulley; 304. Belt; 305. Second pulley; 306. Third pulley; 307. Connecting rod; 308. Stirring rod; 309. Blower; 310. Conveying pipe; 311. Connecting pipe; 312. Branch pipe; 313. Jet nozzle; 314. Groove; 4. Cleaning component; 401. Water pump; 402. Output pipe; 403. Circulation pipe; 404. Spray head; 405. Water tank; 406. Inlet pipe. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1:
[0022] Please see the appendix Figure 1 - Appendix Figure 4 A high-efficiency wastewater treatment aeration tank includes an aeration tank body 1, a sunshade 2 on the top of the aeration tank body 1, and a mixing component 3 inside and at the bottom of the aeration tank body 1. The mixing component 3 includes a motor 301 and a blower 309. The motor 301 is connected to a first pulley 303 via a drive rod 302. The first pulley 303 is connected to a second pulley 305 and a third pulley 306 via a belt 304. The blower 309 is connected to a branch pipe 312 and a jet nozzle 313 via a conveying pipe 310 and a connecting pipe 311. The motor 301 is fixedly installed on the right outer wall of the aeration tank body 1. One end of the drive rod 302 is fixedly connected to the output end of the motor 301, and the other end of the drive rod 302 is fixedly connected to the inside of the first pulley 303. The first pulley 303, the second pulley 305, and the third pulley 306 are connected by a belt 304. Connecting rods 307 are fixedly connected to the left outer wall of wheel 306. The outer walls of the three sets of connecting rods 307 are rotatably connected to the right inner wall of the aeration tank body 1. The left ends of the three sets of connecting rods 307 are rotatably connected to the left inner wall of the aeration tank body 1. Multiple sets of stirring rods 308 distributed at equal intervals are fixedly connected to the outer walls of the three sets of connecting rods 307. The output port of blower 309 is fixedly connected to the right end of conveying pipe 310, and the left end of conveying pipe 310 is fixedly connected to... Inside the connecting pipe 311, there are multiple sets of branch pipes 312, which are fixedly connected at equal intervals to the inner wall of the connecting pipe 311. There are also multiple sets of jet nozzles 313, which are fixedly connected at equal intervals to the upper surface of the branch pipes 312. The conveying pipe 310, the connecting pipe 311, and the branch pipes 312 are all fixedly connected to the bottom inner wall of the aeration tank body 1. Multiple sets of grooves 314 are opened on the inner bottom wall of the aeration tank body 1.
[0023] The multiple sets of grooves 314 are mainly used to house multiple sets of jet nozzles 313. During the rotation of the stirring rod 308, it will not come into contact with the inner bottom wall of the aeration tank body 1, nor will it come into contact with the jet nozzles 313, thus ensuring that each component can operate safely and stably.
[0024] Specifically, through the mixing component 3, the operator starts the motor 301, which drives multiple stirring rods 308 on the three sets of connecting rods 307 to rotate synchronously, fully stirring the sewage and activated sludge in the aeration tank body 1, promoting uniform mixing. At the same time, the operator starts the blower 309, which sends air to the branch pipe 312 through the conveying pipe 310 and connecting pipe 311, and then releases it into the aeration tank body 1 in the form of bubbles through multiple jet nozzles 313 on the branch pipe 312, so that the air is evenly distributed in the tank, increasing the contact area between sewage and air, improving oxygen transfer efficiency. The synergy of stirring and aeration creates a suitable living environment for microorganisms, activates their metabolism, and greatly improves sewage treatment efficiency.
[0025] Example 2:
[0026] Please see the appendix Figure 1 and appendix Figure 5 Furthermore, based on Embodiment 1, a cleaning assembly 4 is provided inside and outside the aeration tank body 1. The cleaning assembly 4 includes a water pump 401, an output pipe 402 is fixedly connected to the output port of the water pump 401, a circulation pipe 403 is fixedly connected to the right end of the output pipe 402, the circulation pipe 403 is fixedly installed on the inner wall of the aeration tank body 1, multiple sets of spray heads 404 are fixedly connected to the outer wall of the circulation pipe 403, a water tank 405 is fixedly connected to the input port of the water pump 401, and an inlet pipe 406 is fixedly installed on the top of the water tank 405.
[0027] The circulation pipe 403 and the spray head 404 are located on the upper part of the inner wall of the aeration tank body 1. The spray head 404 is connected to the outer wall of the circulation pipe 403 in an inclined state, so that the sprayed water flow acts on the inner wall of the aeration tank body 1 at a specific angle, and washes away the dirt, algae, microorganisms and other impurities attached to the tank wall and bottom.
[0028] Specifically, through the cleaning component 4, the staff starts the water pump 401 to draw clean water from the water tank 405 and sprays it onto the inner wall of the aeration tank body 1 through the spray head 404 on the circulation pipe 403. This operation can wash away various impurities attached to the tank wall, prevent them from accumulating in large quantities, and ensure the cleanliness of the tank wall. At the same time, it helps to maintain the stability of the sewage water quality in the aeration tank and provide good water quality conditions for the survival of microorganisms and the sewage treatment reaction.
[0029] Working principle of this utility model: This utility model is a high-efficiency sewage treatment aeration tank. First, when sewage needs to be treated, the operator starts the motor 301. The motor 301 drives the rod 302 to rotate, which in turn drives the first pulley 303, which is fixedly connected to it, to rotate. Since the first pulley 303 is connected to the second pulley 305 and the third pulley 306 via the belt 304, the rotation of the first pulley 303 will drive the second pulley 305 and the third pulley 306 to rotate synchronously via the belt 304. Connecting rods are fixedly connected to the left outer walls of the first pulley 303, the second pulley 305, and the third pulley 306. 307. The outer walls of the three sets of connecting rods 307 are rotatably connected to the inner right wall of the aeration tank body 1, and the left end is rotatably connected to the inner left wall of the aeration tank body 1. Meanwhile, multiple sets of equidistantly distributed stirring rods 308 fixedly connected to the outer walls of the connecting rods 307 will also rotate synchronously and efficiently, thoroughly stirring the wastewater and activated sludge within the aeration tank body 1 to ensure uniform mixing. Simultaneously with starting the motor 301, the operator starts the blower 309. The air generated by the blower 309 is transported to the connecting pipe 311 through the conveying pipe 310. Multiple sets of branch pipes 31 are fixedly connected at equal intervals to the inner wall of the connecting pipe 311. 2. After entering the connecting pipe 311, the air is distributed to multiple sets of branch pipes 312. Multiple sets of jet nozzles 313 are also fixedly connected at equal intervals to the upper surface of each branch pipe 312. The air is ultimately released into the main body 1 of the aeration tank in the form of tiny bubbles through the jet nozzles 313. As these bubbles rise, they evenly distribute the air within the tank, increasing the contact area between the wastewater and the air, thereby improving oxygen transfer efficiency. This provides sufficient oxygen for aerobic microorganisms, promoting their decomposition and metabolism of organic matter in the wastewater. The synergistic effect of stirring and aeration creates a suitable living environment for the microorganisms, making their metabolism more active and significantly improving wastewater treatment efficiency. Efficiency: Next, when the aeration tank needs to be cleaned, the staff starts the water pump 401 to extract the clean water from the water tank 405 and deliver it to the circulation pipe 403 through the output pipe 402. The circulation pipe 403 is fixedly installed on the upper part of the inner wall of the aeration tank body 1. Multiple sets of spray heads 404 are fixedly connected to its outer wall in an inclined state. The clean water is sprayed out from the spray heads 404 through the circulation pipe 403. Due to the inclined angle of the spray heads 404, the sprayed water will act on the inner wall of the aeration tank body 1 at a specific angle. The impact force of the water flow can remove various impurities attached to the tank wall, prevent these impurities from accumulating in large quantities, and ensure that the tank wall is clean and tidy.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency wastewater treatment aeration tank, comprising an aeration tank body (1), characterized in that: The aeration tank body (1) is provided with a sunshade (2) on top. The aeration tank body (1) is provided with a mixing component (3) inside and at the bottom. The mixing component (3) includes a motor (301) and a blower (309). The motor (301) is connected to a first pulley (303) via a drive rod (302). The first pulley (303) is connected to a second pulley (305) and a third pulley (306) via a belt (304). The blower (309) is connected to a branch pipe (312) and a jet nozzle (313) via a conveying pipe (310) and a connecting pipe (311).
2. The high-efficiency sewage treatment aeration tank according to claim 1, characterized in that: The motor (301) is fixedly installed on the right outer wall of the aeration tank body (1). One end of the drive rod (302) is fixedly connected to the output end of the motor (301), and the other end of the drive rod (302) is fixedly connected to the inside of the first pulley (303). The first pulley (303), the second pulley (305) and the third pulley (306) are connected by a belt (304).
3. The high-efficiency sewage treatment aeration tank according to claim 2, characterized in that: Connecting rods (307) are fixedly connected to the left outer walls of the first pulley (303), the second pulley (305) and the third pulley (306). The outer walls of the three sets of connecting rods (307) are rotatably connected to the right inner wall of the aeration tank body (1). The left ends of the three sets of connecting rods (307) are rotatably connected to the left inner wall of the aeration tank body (1). Multiple sets of stirring rods (308) distributed at equal distances are fixedly connected to the outer walls of the three sets of connecting rods (307).
4. The high-efficiency sewage treatment aeration tank according to claim 3, characterized in that: The output port of the blower (309) is fixedly connected to the right end of the conveying pipe (310), and the left end of the conveying pipe (310) is fixedly connected to the inside of the connecting pipe (311). Multiple sets of branch pipes (312) are provided, and multiple sets of branch pipes (312) are fixedly connected to the inner wall of the connecting pipe (311) at equal distances. Multiple sets of jet nozzles (313) are also provided, and multiple sets of jet nozzles (313) are fixedly connected to the upper surface of the branch pipes (312) at equal distances. The conveying pipe (310), the connecting pipe (311), and the branch pipes (312) are all fixedly connected to the bottom inner wall of the aeration tank body (1). Multiple sets of grooves (314) are opened on the inner bottom wall of the aeration tank body (1).
5. The high-efficiency sewage treatment aeration tank according to claim 4, characterized in that: The aeration tank body (1) is equipped with a cleaning component (4) inside and outside. The cleaning component (4) includes a water pump (401). The output port of the water pump (401) is fixedly connected to an output pipe (402). The right end of the output pipe (402) is fixedly connected to a circulation pipe (403).
6. The high-efficiency sewage treatment aeration tank according to claim 5, characterized in that: The circulation pipe (403) is fixedly installed on the inner wall of the aeration tank body (1). Multiple sets of spray heads (404) are fixedly connected to the outer wall of the circulation pipe (403). A water tank (405) is fixedly connected to the inlet of the water pump (401). An inlet pipe (406) is fixedly installed on the top of the water tank (405).
Citation Information
Patent Citations
Efficient sewage treatment aeration tank
CN213326953U