Industrial sewage treatment aeration tank
By installing a meshing transmission system of rotating pipes and aeration pipes in the aeration tank, combined with the sludge discharge mechanism of the screw conveyor, the problems of insufficient aeration and difficulty in cleaning sludge are solved, achieving efficient aeration and smooth sludge discharge in wastewater treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA NUOCHI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-12
- Publication Date
- 2026-06-23
AI Technical Summary
Existing industrial wastewater treatment aeration tanks suffer from insufficient aeration and poor sewage discharge efficiency at corners and during sludge removal at the bottom of the tank.
An aeration tank for industrial wastewater treatment was designed, which adopts an arc-bottom aeration trough with two rotating pipes. The rotating pipes are driven by a motor through spur gear meshing, and air is introduced into the aeration pipes by an air pump and air guide steel pipe to achieve all-round aeration. At the same time, a sludge discharge mechanism is equipped, which uses a screw conveyor and motor to drive the sludge to discharge.
It achieves sufficient aeration of wastewater and effective discharge of sludge, improving aeration quality and sewage discharge efficiency.
Smart Images

Figure CN224394714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial wastewater treatment technology, and more specifically, to an industrial wastewater treatment aeration tank. Background Technology
[0002] Industrial wastewater includes production wastewater, industrial sewage, and cooling water. It refers to the wastewater and waste liquid generated during industrial production processes. It contains industrial production materials, intermediate products, by-products, and pollutants generated during production that are lost with the water. Industrial wastewater is treated by aeration.
[0003] A search revealed that utility model patent CN222613107U discloses an aeration tank for industrial wastewater treatment, comprising an aeration tank body, an inlet on the outer wall of the aeration tank body, an outlet on the side of the aeration tank body away from the inlet, a sewage outlet on the side wall of the aeration tank body, and a processing component disposed inside the aeration tank body. The processing component includes an aeration component disposed inside the aeration tank body, and a cleaning component disposed below the aeration component. When wastewater needs to be treated, it is necessary to ensure that the wastewater inside the aeration tank body is in full contact with oxygen. At this time, the motor is started, and the rotating rod fixedly installed at its output end begins to rotate. The rotating rod drives the sleeve to rotate through the transmission mechanism, and the aeration pipe hinged to the outer wall of the sleeve rotates accordingly. The aeration pipe agitates the wastewater inside the aeration tank body to improve its treatment effect. Under the action of centrifugal force, the aeration pipe is swung, which expands the aeration range of the aeration pipe and makes the wastewater treatment effect even better.
[0004] However, the above-mentioned patent still has the following shortcomings: Although the aeration tank can be aerated through two aeration components, the sewage in the corners and other places of the tank cannot be fully aerated, which affects the quality of aeration. In addition, when there is a lot of sludge at the bottom of the tank, it is not convenient to push all the sludge out by scraper, which affects the sewage discharge effect. Therefore, we have proposed an industrial sewage treatment aeration tank. Utility Model Content
[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an aeration tank for industrial wastewater treatment.
[0006] To solve the above problems, the present invention adopts the following technical solution:
[0007] An industrial wastewater treatment aeration tank includes an aeration tank body with an arc-bottomed aeration trough inside. A sludge removal mechanism is installed on the aeration tank body. Two rotating pipes are rotatably connected to the inner cavity of the arc-bottomed aeration trough. Multiple aeration pipes are fixedly connected to the sides of the two rotating pipes, each with multiple aeration holes. One end of each of the two rotating pipes extends to the outside of the aeration tank body and is fixedly fitted with a spur gear. The two spur gears mesh with each other. A first motor is fixedly installed on the end face of the aeration tank body. The output shaft of the first motor is connected to the other end of the rotating pipes via a coupling. An air pump is fixedly installed at the end of the aeration tank body. A three-way connector is fixedly connected to the output end of the air pump. Air guide steel pipes are fixedly fitted to both ends of the three-way connector. Rotary joints are fixedly connected to the ends of the two air guide steel pipes. The ends of the two rotary joints are fixedly fitted to the outside of one end of each of the two rotating pipes.
[0008] As a preferred embodiment of this utility model, the sludge discharge mechanism includes a second motor fixedly installed at one end of the aeration tank body and a sludge discharge pipe disposed at the other end of the aeration tank body. The outer side of the sludge discharge pipe is threaded with an internally threaded pipe cap. The output shaft of the second motor extends into the inner cavity of the arc-bottom aeration trough and is fixedly connected to a spiral conveying rod through a coupling. The end of the spiral conveying rod extends into the inner cavity of the sludge discharge pipe.
[0009] As a preferred embodiment of this utility model, a control panel is fixedly installed on the side of the aeration tank body, and the control panel is electrically connected to the second motor, the air pump, and the first motor respectively.
[0010] As a preferred embodiment of this utility model, an inlet pipe is fixedly sleeved on the top surface of one end of the aeration tank.
[0011] As a preferred embodiment of this utility model, a switch valve is fixedly installed at the other end of the aeration tank body, one end of the switch valve extends into the inner cavity of the arc-bottom aeration trough, and the other end of the switch valve is fixedly connected to a drain pipe.
[0012] As a preferred embodiment of this utility model, the side of the spiral conveyor rod is respectively attached to the bottom surface of the inner cavity of the arc-bottom aeration tank and the inner wall of the sludge discharge pipe.
[0013] Compared with existing technologies, the advantages of this utility model are:
[0014] (1) In this utility model, two rotating pipes are set in the inner cavity of the arc-bottom aeration tank, and multiple aeration pipes are set on the side of the two rotating pipes. In addition, a first motor drives one rotating pipe and a spur gear to rotate. Through the meshing transmission between the two spur gears, the two rotating pipes are driven to rotate in the inner cavity of the arc-bottom aeration tank. At the same time, an air pump, a three-way connector, an air guide steel pipe, and a rotary connector are used to introduce air into the inner cavity of the rotating pipe, so that the air in the inner cavity of the rotating pipe is sprayed into the sewage in the inner cavity of the arc-bottom aeration tank from the aeration holes on the side of the aeration pipe, so as to fully aerate the sewage entering the inner cavity of the arc-bottom aeration tank and achieve good aeration quality.
[0015] (2) In this utility model, by using the sludge discharge pipe, the second motor and the screw conveyor rod together, when a lot of sludge is deposited at the bottom of the arc bottom aeration tank, the inner threaded pipe cover is removed, and the second motor drives the screw conveyor rod to rotate. The rotation of the screw conveyor rod can drive the sludge at the bottom of the arc bottom aeration tank to be discharged smoothly from the sludge discharge pipe, and the sludge discharge effect is good. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is an exploded view of the overall structure of this utility model;
[0018] Figure 3 This is a top view of the entire utility model;
[0019] Figure 4 This is a cross-sectional schematic diagram of the aeration tank body of this utility model.
[0020] Explanation of the labels in the diagram:
[0021] 1. Aeration tank body; 2. Arc-bottom aeration trough; 3. Sludge discharge mechanism; 4. Rotary pipe; 5. Aeration pipe; 6. Aeration hole; 7. First motor; 8. Spur gear; 9. Air pump; 10. T-joint; 11. Air guide steel pipe; 12. Rotary joint; 13. Sludge discharge pipe; 14. Second motor; 15. Screw conveyor rod; 16. Internal threaded pipe cover; 17. Switch valve; 18. Drain pipe; 19. Water inlet pipe; 20. Control panel. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example 1:
[0026] Please see Figure 1-4 An industrial wastewater treatment aeration tank includes an aeration tank body 1, an arc-bottomed aeration trough 2 inside the aeration tank body 1, a sludge discharge mechanism 3 on the aeration tank body 1, two rotating pipes 4 rotatably connected to the inner cavity of the arc-bottomed aeration trough 2, multiple aeration pipes 5 fixedly connected to the sides of the two rotating pipes 4, and multiple aeration holes 6 opened on each of the multiple aeration pipes 5. One end of each of the two rotating pipes 4 extends to the outside of the aeration tank body 1 and is fixedly sleeved with a spur gear 8, which meshes with each other. A first motor 7 is fixedly installed on the end face of the aeration tank body 1, and the output shaft of the first motor 7 is connected to the other end of the rotating pipe 4 through a coupling. An air pump 9 is fixedly installed at the end of the aeration tank body 1, and a three-way connector 10 is fixedly connected to the output end of the air pump 9. Air guide steel pipes 11 are fixedly sleeved at both ends of the three-way connector 10, and rotary joints 12 are fixedly connected to the ends of the two air guide steel pipes 11, respectively. The ends of the two rotary joints 12 are fixedly sleeved to the outside of one end of the two rotating pipes 4.
[0027] For details, please refer to Figures 1 to 4 The sludge discharge mechanism 3 includes a second motor 14 fixedly installed at one end of the aeration tank body 1 and a sludge discharge pipe 13 located at the other end of the aeration tank body 1. The outer side of the sludge discharge pipe 13 is threaded with an internal threaded pipe cap 16. The output shaft of the second motor 14 extends into the inner cavity of the arc-bottom aeration trough 2 and is fixedly connected to a spiral conveying rod 15 via a coupling. The end of the spiral conveying rod 15 extends into the inner cavity of the sludge discharge pipe 13.
[0028] In this embodiment, an external threaded groove is provided on the outer side of the end of the mud discharge pipe 13 so that the internal threaded pipe cap 16 can be threaded onto the end of the mud discharge pipe 13 to seal it.
[0029] For details, please refer to Figure 1 and Figure 2 A control panel 20 is fixedly installed on the side of the aeration tank 1. The control panel 20 is electrically connected to the second motor 14, the air pump 9, and the first motor 7.
[0030] In this embodiment, the second motor 14, the air pump 9, and the first motor 7 are controlled by the control panel 20. In addition, the control panel 20, the second motor 14, the air pump 9, and the first motor 7 are powered by the power supply of the external device. This is the prior art and will not be described in detail.
[0031] For details, please refer to Figure 1 An inlet pipe 19 is fixedly connected to the top surface of one end of the aeration tank body 1.
[0032] In this embodiment, the industrial wastewater to be aerated is introduced into the inner cavity of the arc-bottom aeration tank 2 through the water inlet pipe 19.
[0033] For details, please refer to Figure 2 A switch valve 17 is fixedly installed at the other end of the aeration tank body 1. One end of the switch valve 17 extends into the inner cavity of the arc-bottom aeration trough 2, and the other end of the switch valve 17 is fixedly connected to a drain pipe 18.
[0034] In this embodiment, the aerated wastewater is discharged through the switch valve 17 and the drain pipe 18.
[0035] For details, please refer to Figures 2 to 4 The side of the spiral conveyor rod 15 is in contact with the bottom surface of the inner cavity of the arc-bottom aeration tank 2 and the inner wall of the sludge discharge pipe 13, respectively.
[0036] In this embodiment, the rotation of the spiral conveyor rod 15 is ensured to drive the sludge at the bottom of the arc-bottom aeration tank 2 to be discharged from the sludge discharge pipe 13.
[0037] Working principle: In use, the industrial wastewater to be treated is first introduced into the inner cavity of the arc-bottom aeration tank 2 through the inlet pipe 19. At the same time, the first motor 7 is started to drive a rotating tube 4 and a spur gear 8 to rotate. Through the meshing transmission between the two spur gears 8, the two rotating tubes 4 are driven to rotate in opposite directions. Then, the air pump 9 is started to introduce external air into the inner cavity of the rotating tube 4 through the three-way connector 10, the air guide steel pipe 11, and the rotary connector 12. The air in the inner cavity of the rotating tube 4 is then sprayed out from the aeration holes 6 on the side of the aeration pipe 5 to aerate the wastewater. Then, the switch valve 17 is opened to discharge the aerated wastewater in the inner cavity of the arc-bottom aeration tank 2 through the switch valve 17 and the drain pipe 18. Finally, when a large amount of sludge accumulates at the bottom of the inner cavity of the arc-bottom aeration tank 2, the internal threaded pipe cover 16 is removed, and the second motor 14 is started to drive the screw conveyor 15 to rotate. The rotation of the screw conveyor 15 drives the sludge at the bottom of the inner cavity of the arc-bottom aeration tank 2 to be discharged through the sludge discharge pipe 13.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. An industrial wastewater treatment aeration tank comprising an aeration tank body (1), characterized in that: The aeration tank body (1) is provided with an arc-bottom aeration trough (2) inside. The aeration tank body (1) is provided with a sludge discharge mechanism (3). The inner cavity of the arc-bottom aeration trough (2) is rotatably connected to two rotating pipes (4). Multiple aeration pipes (5) are fixedly connected to the sides of the two rotating pipes (4). Multiple aeration holes (6) are opened on the multiple aeration pipes (5). One end of each of the two rotating pipes (4) extends to the outside of the aeration tank body (1) and is fixedly sleeved with a spur gear (8). The two spur gears (8) mesh with each other. The end face of the aeration tank body (1) A first motor (7) is fixedly installed. The output shaft of the first motor (7) is connected to the other end of the rotating tube (4) through a coupling. An air pump (9) is fixedly installed at the end of the aeration tank (1). A three-way connector (10) is fixedly connected to the output end of the air pump (9). Air guide steel pipes (11) are fixedly sleeved at both ends of the three-way connector (10). Rotary joints (12) are fixedly connected to the ends of the two air guide steel pipes (11). The ends of the two rotary joints (12) are fixedly sleeved to the outside of one end of the two rotating tubes (4).
2. An industrial wastewater treatment aeration tank according to claim 1, characterized in that: The sludge discharge mechanism (3) includes a second motor (14) fixedly installed at one end of the aeration tank body (1) and a sludge discharge pipe (13) set at the other end of the aeration tank body (1). The outer side of the sludge discharge pipe (13) is threaded with an inner threaded pipe cap (16). The output shaft of the second motor (14) extends to the inner cavity of the arc-bottom aeration trough (2) and is fixedly connected to a spiral conveying rod (15) through a coupling. The end of the spiral conveying rod (15) extends to the inner cavity of the sludge discharge pipe (13).
3. An industrial wastewater treatment aeration tank according to claim 2, characterised in that: A control panel (20) is fixedly installed on the side of the aeration tank (1). The control panel (20) is electrically connected to the second motor (14), the air pump (9), and the first motor (7).
4. The industrial wastewater treatment aeration tank according to claim 1, characterized in that: A water inlet pipe (19) is fixedly sleeved on the top surface of one end of the aeration tank body (1).
5. An industrial wastewater treatment aeration tank according to claim 1, characterized in that: A switch valve (17) is fixedly installed at the other end of the aeration tank body (1). One end of the switch valve (17) extends into the inner cavity of the arc-bottom aeration trough (2), and the other end of the switch valve (17) is fixedly connected to a drain pipe (18).
6. An industrial wastewater treatment aeration tank according to claim 2, characterized in that: The side of the spiral conveyor rod (15) is in contact with the bottom surface of the inner cavity of the arc-bottom aeration tank (2) and the inner wall of the mud discharge pipe (13), respectively.