Aeration tank for sewage treatment

By designing an aeration tank with rotating aeration plates and adjustable-depth mixing blades, the problems of sedimentation of impurities in the aeration head and incomplete mixing were solved, achieving more efficient wastewater treatment.

CN223780080UActive Publication Date: 2026-01-09ZHEJIANG LITTLE LOW CARBON TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423276966.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-09
Estimated Expiration
2034-12-30

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Abstract

The utility model relates to the technical field of aeration tanks, and discloses an aeration tank for sewage treatment, which comprises an aeration box, an aeration component is arranged in the aeration box, and a lifting component is arranged at the top of the aeration box; the aeration assembly comprises a plurality of connecting pipes, the connecting pipes are rotatably embedded in the aeration box, the tops of the outer surfaces of the connecting pipes are fixedly connected with aeration plates, belt pulleys are fixedly mounted on the sides, away from the aeration plates, of the connecting pipes, and belts are wound on the outer surfaces of the belt pulleys in a sleeving manner. The bottoms of the outer surfaces of the multiple connecting pipes are rotationally sleeved with rotating sealing rings. The lifting assembly comprises a top plate, an air cylinder is fixedly mounted at the top of the outer surface of the top plate, and the belt pulley can drive the aeration plate to rotate through the connecting pipe in the rotating process, so that the aeration plate rotates to prevent impurities in sewage from accumulating on the aeration plate to influence the aeration effect.
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Description

Technical Field

[0001] This utility model relates to the field of aeration tank technology, specifically an aeration tank for sewage treatment. Background Technology

[0002] Wastewater treatment refers to a series of physical, chemical, and biological processes used to remove or reduce pollutants from wastewater to meet discharge standards or enable its safe reuse. The purpose of wastewater treatment is to protect the aquatic environment, prevent water pollution, and create conditions for the reuse of water resources.

[0003] Aeration tanks are an important unit in the wastewater treatment process. They are mainly used to promote the growth and metabolism of microorganisms by adding air or oxygen to wastewater, thereby degrading organic matter in the wastewater.

[0004] Chinese Patent Publication No. CN207748928U discloses "An Aeration Tank for Treating Domestic Sewage," which includes an aeration tank, aeration plates, aeration heads, a blower, and a drain pipe. A motor is fixedly connected to the right outer wall of the aeration tank, and a drive shaft is fixedly connected to the shaft extension of the motor. The other end of the drive shaft is rotatably connected to the left wall of the aeration tank. A first bevel gear is sleeved on the drive shaft. A rotating shaft is installed inside the aeration tank, and a second bevel gear is fixedly connected to the top of the rotating shaft. The second bevel gear meshes with the first bevel gear. A slider is sleeved on the rotating shaft, and aeration blades are fixedly connected to the side wall of the slider. A float is fixedly connected to the lower surface of the aeration blades. An aeration plate is fixedly connected to the bottom of the aeration tank. The aeration blades can move up and down with the rise and fall of the liquid level while aerating, improving aeration efficiency. The aeration plates aerate the sewage at the bottom, and the stirring rod breaks up the air bubbles, increasing the contact area between air and sewage, further improving the aeration effect.

[0005] While existing technologies can further improve aeration efficiency, the aeration heads are fixed at the bottom of the aeration tank. During use, impurities in the wastewater tend to settle and accumulate on the aeration heads, affecting the aeration effect. In addition, existing technologies can only stir the surface of the wastewater and cannot stir the wastewater at different depths, which can lead to incomplete stirring inside the wastewater and reduced aeration efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide an aeration tank for sewage treatment, so as to solve the problem that in the prior art, the aeration head is fixed at the bottom of the aeration tank, and impurities in the sewage are easy to settle and accumulate on the aeration head during use, which affects the aeration effect. At the same time, the prior art can only stir the surface of the sewage during use, and cannot stir the sewage at different depths, which leads to the problem that the sewage is easily reduced in aeration effect due to incomplete stirring inside the sewage during use.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] An aeration tank for wastewater treatment includes an aeration box, an aeration assembly is provided inside the aeration box, and a lifting assembly is provided on the top of the aeration box.

[0009] The aeration assembly includes multiple connecting pipes, all of which are rotatably embedded inside the aeration box. An aeration plate is fixedly connected to the top of the outer surface of each of the multiple connecting pipes. A belt pulley is fixedly installed on the side of each of the multiple connecting pipes away from the aeration plate. A belt is wrapped around the outer surface of each of the multiple belt pulleys. A rotating sealing ring is rotatably fitted on the bottom of the outer surface of each of the multiple connecting pipes.

[0010] The lifting assembly includes a top plate, a cylinder is fixedly installed on the top of the outer surface of the top plate, a rod is provided at the bottom of the outer surface of the cylinder, and a lifting plate is fixedly installed on the side of the rod away from the cylinder. Multiple support rods are fixedly installed at the bottom of the outer surface of the top plate, and the multiple support rods are slidably embedded inside the lifting plate.

[0011] Preferably, a mounting plate is fixedly installed on the bottom of the outer surface of the lifting plate, and a stirring motor is fixedly installed inside the mounting plate.

[0012] Preferably, a stirring rod is fixedly connected to the outer surface of the output shaft of the stirring motor, and a stirring blade is fixedly connected to the side of the stirring rod away from the stirring motor. The sides of the multiple support rods away from the top plate are all fixedly connected to the aeration box.

[0013] Preferably, a motor frame is fixedly connected to the bottom of the outer surface of the aeration box, and an aeration motor is fixedly installed inside the motor frame.

[0014] Preferably, a double-layer pulley is fixedly installed on the outer surface of the output shaft of the aeration motor, and the sides of the multiple belts away from the pulley are all wound around the outer surface of the double-layer pulley.

[0015] Preferably, a gas distribution pipe is fixedly installed on the side of each of the plurality of rotating sealing rings away from the connecting pipe, and a plurality of connecting plates are fixedly installed on the outer surface of the gas distribution pipe, and one side of the outer surface of each of the plurality of connecting plates is fixedly connected to the aeration box.

[0016] Preferably, a drain pipe is provided on one side of the outer surface of the aeration box, a water inlet pipe is provided on the side of the aeration box away from the drain pipe, and multiple bases are fixedly installed on the bottom of the outer surface of the aeration box.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0018] 1. This utility model starts the aeration motor, which drives the double-layer belt pulley to rotate. Since the outer surface of the double-layer belt pulley is wrapped with a belt, the double-layer belt pulley can drive the two belt pulleys to rotate during rotation. The belt pulley is equipped with a connecting pipe inside, and the connecting pipe is fixedly connected to the aeration plate. Therefore, the belt pulley can drive the aeration plate to rotate during rotation. By rotating the aeration plate, the accumulation of impurities in the sewage on the aeration plate is avoided, which affects the aeration effect.

[0019] 2. This utility model uses a starting cylinder to extend the air rod. During the extension process, the air rod can move the lifting plate downward. When the lifting plate moves downward, it can move the stirring blade downward. After the stirring blade moves to the appropriate position, the stirring motor can be started. The stirring motor drives the stirring blade to rotate through the stirring rod to stir the sewage to enhance the aeration effect. The cylinder can be controlled according to the usage requirements to stir the sewage at different depths. Attached Figure Description

[0020] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the other side of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0023] Figure 4 This is an enlarged three-dimensional structural diagram of point A of this utility model.

[0024] The components are as follows: 1. Aeration box; 2. Aeration plate; 201. Connecting pipe; 202. Belt pulley; 203. Belt; 204. Rotary sealing ring; 3. Top plate; 301. Cylinder; 302. Air rod; 303. Lifting plate; 304. Support rod; 4. Mounting plate; 5. Air distribution pipe; 6. Double-layer belt pulley; 7. Motor frame; 8. Aeration motor; 9. Connecting plate; 10. Base; 11. Drain pipe; 12. Agitator rod; 13. Water inlet pipe; 14. Agitator blade; 15. Agitator motor. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4An aeration tank for sewage treatment includes an aeration box 1, characterized in that: an aeration assembly is provided inside the aeration box 1, and a lifting assembly is provided on the top of the aeration box 1.

[0027] The aeration assembly includes multiple connecting pipes 201, and all multiple connecting pipes 201 are rotatably embedded inside the aeration box 1. The top of the outer surface of each of the multiple connecting pipes 201 is fixedly connected to an aeration plate 2. A belt pulley 202 is fixedly installed on the side of each of the multiple connecting pipes 201 away from the aeration plate 2. A belt 203 is wrapped around the outer surface of each of the multiple belt pulleys 202. A rotating sealing ring 204 is rotatably sleeved on the bottom of the outer surface of each of the multiple connecting pipes 201.

[0028] The lifting assembly includes a top plate 3. A cylinder 301 is fixedly installed on the top of the outer surface of the top plate 3. A rod 302 is provided at the bottom of the outer surface of the cylinder 301. A lifting plate 303 is fixedly installed on the side of the rod 302 away from the cylinder 301. Multiple support rods 304 are fixedly installed at the bottom of the outer surface of the top plate 3, and the multiple support rods 304 are slidably embedded inside the lifting plate 303.

[0029] With the above technical solution, the aeration motor 8 can be started during use, which drives the double-layer belt pulley 6 to rotate. Since the outer surface of the double-layer belt pulley 6 is wrapped with a belt 203, the double-layer belt pulley 6 can drive the two belt pulleys 202 to rotate through the belt 203 during rotation. The belt pulley 202 is provided with a connecting pipe 201 inside, and the connecting pipe 201 is fixedly connected to the aeration plate 2. Therefore, the belt pulley 202 can drive the aeration plate 2 to rotate through the connecting pipe 201 during rotation. By rotating the aeration plate 2, the accumulation of impurities in the sewage on the aeration plate 2 is avoided, which affects the aeration effect.

[0030] With the above technical solution, when it is necessary to adjust the stirring height, the cylinder 301 can be activated. The cylinder 301 drives the air rod 302 to extend. During the extension process, the air rod 302 can drive the lifting plate 303 to move downward. When the lifting plate 303 moves downward, it can drive the stirring blade 14 to move downward. After the stirring blade 14 moves to the appropriate position, the stirring motor 15 can be activated. The stirring motor 15 drives the stirring blade 14 to rotate through the stirring rod 12 to stir the sewage to enhance the aeration effect. The cylinder 301 can be controlled to stir the sewage at different depths according to the usage requirements.

[0031] Specifically, a mounting plate 4 is fixedly installed on the bottom of the outer surface of the lifting plate 303, and a stirring motor 15 is fixedly installed inside the mounting plate 4.

[0032] Through the above technical solution, the mounting plate 4 supports the stirring motor 15, and the stirring motor 15 drives the stirring rod 12 to rotate, which in turn drives the stirring blade 14 to rotate.

[0033] Specifically, a stirring rod 12 is fixedly connected to the outer surface of the output shaft of the stirring motor 15, and a stirring blade 14 is fixedly connected to the side of the stirring rod 12 away from the stirring motor 15. The sides of multiple support rods 304 away from the top plate 3 are all fixedly connected to the aeration box 1.

[0034] Through the above technical solution, the stirring rod 12 drives the stirring blade 14 to rotate, so that the stirring blade 14 stirs the sewage. The support rod 304 supports the top plate 3 and limits the lifting plate 303 at the same time, so as to prevent the position of the lifting plate 303 from deviating during the movement.

[0035] Specifically, a motor frame 7 is fixedly connected to the bottom of the outer surface of the aeration box 1, and an aeration motor 8 is fixedly installed inside the motor frame 7.

[0036] Through the above technical solution, the motor frame 7 supports the aeration motor 8, and the aeration motor 8 drives the double-layer belt pulley 6 to rotate, which in turn drives the belt 203 to rotate.

[0037] Specifically, a double-layer pulley 6 is fixedly installed on the outer surface of the output shaft of the aeration motor 8, and multiple belts 203 are wound around the outer surface of the double-layer pulley 6 on the side away from the pulley 202.

[0038] Through the above technical solution, the double-layer belt disc 6 can drive the belt 203 to rotate during the rotation process, so that the belt 203 drives the belt disc 202 to rotate.

[0039] Specifically, a gas distribution pipe 5 is fixedly installed on the side of the multiple rotating sealing rings 204 away from the connecting pipe 201, and multiple connecting plates 9 are fixedly installed on the outer surface of the gas distribution pipe 5. One side of the outer surface of the multiple connecting plates 9 is fixedly connected to the aeration box 1.

[0040] With the above technical solution, the air distribution pipe 5 can be connected to the air compressor during use, and the gas can be transported to the interior of the aeration plates 2 on both sides through the air distribution pipe 5. The connecting plate 9 supports the air distribution pipe 5.

[0041] Specifically, a drain pipe 11 is provided on one side of the outer surface of the aeration box 1, an inlet pipe 13 is provided on the side of the aeration box 1 away from the drain pipe 11, and multiple bases 10 are fixedly installed on the bottom of the outer surface of the aeration box 1.

[0042] With the above technical solution, the outer surface of the drain pipe 11 is provided with a valve, which can be opened when needed to discharge the aerated sewage through the drain pipe 11. The outer surface of the stirring rod 12 is provided with a valve, which can be opened when needed to allow sewage to enter the interior of the aeration box 1 through the inlet pipe 13. The base 10 supports the device.

[0043] In use, the aeration motor 8 can be started, which drives the double-layer belt pulley 6 to rotate. Since a belt 203 is wound around the outer surface of the double-layer belt pulley 6, the belt 203 drives the two side belt pulleys 202 to rotate during rotation. A connecting pipe 201 is installed inside the belt pulley 202, and the connecting pipe 201 is fixedly connected to the aeration plate 2. Therefore, during rotation, the belt pulley 202 drives the aeration plate 2 to rotate through the connecting pipe 201. This rotation of the aeration plate 2 prevents impurities in the wastewater from accumulating on it. The aeration effect is affected by the height of the stirring. When it is necessary to adjust the stirring height, the cylinder 301 can be started. The cylinder 301 drives the air rod 302 to extend. During the extension process, the air rod 302 can drive the lifting plate 303 to move downward. When the lifting plate 303 moves downward, it can drive the stirring blade 14 to move downward. After the stirring blade 14 moves to the appropriate position, the stirring motor 15 can be started. The stirring motor 15 drives the stirring blade 14 to rotate through the stirring rod 12 to stir the sewage to enhance the aeration effect. The cylinder 301 can be controlled to stir the sewage at different depths according to the usage requirements.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aeration tank for wastewater treatment, comprising an aeration box (1), characterized in that: The aeration box (1) is equipped with an aeration assembly inside, and a lifting assembly is provided on the top of the aeration box (1). The aeration assembly includes multiple connecting pipes (201), and the multiple connecting pipes (201) are rotatably embedded inside the aeration box (1). An aeration plate (2) is fixedly connected to the top of the outer surface of the multiple connecting pipes (201). A belt pulley (202) is fixedly installed on the side of the multiple connecting pipes (201) away from the aeration plate (2). A belt (203) is wrapped around the outer surface of the multiple belt pulleys (202). A rotating sealing ring (204) is rotatably sleeved on the bottom of the outer surface of the multiple connecting pipes (201). The lifting assembly includes a top plate (3), a cylinder (301) is fixedly installed on the top of the outer surface of the top plate (3), a rod (302) is provided at the bottom of the outer surface of the cylinder (301), and a lifting plate (303) is fixedly installed on the side of the rod (302) away from the cylinder (301). Multiple support rods (304) are fixedly installed at the bottom of the outer surface of the top plate (3), and the multiple support rods (304) are all slidably embedded in the interior of the lifting plate (303).

2. An aeration tank for wastewater treatment according to claim 1, characterized in that: An installation plate (4) is fixedly installed on the bottom of the outer surface of the lifting plate (303), and a stirring motor (15) is fixedly installed inside the installation plate (4).

3. An aeration tank for wastewater treatment according to claim 2, characterized in that: A stirring rod (12) is fixedly connected to the outer surface of the output shaft of the stirring motor (15), and a stirring blade (14) is fixedly connected to the side of the stirring rod (12) away from the stirring motor (15). The side of the multiple support rods (304) away from the top plate (3) is fixedly connected to the aeration box (1).

4. An aeration tank for wastewater treatment according to claim 1, characterized in that: A motor frame (7) is fixedly connected to the bottom of the outer surface of the aeration box (1), and an aeration motor (8) is fixedly installed inside the motor frame (7).

5. An aeration tank for sewage treatment according to claim 4, characterized in that: A double-layer pulley (6) is fixedly installed on the outer surface of the output shaft of the aeration motor (8), and the sides of the multiple belts (203) away from the pulley (202) are all wrapped around the outer surface of the double-layer pulley (6).

6. An aeration tank for wastewater treatment according to claim 1, characterized in that: Each of the multiple rotating sealing rings (204) has a gas distribution pipe (5) fixedly installed on the side away from the connecting pipe (201), and multiple connecting plates (9) are fixedly installed on the outer surface of the gas distribution pipe (5). One side of the outer surface of each of the multiple connecting plates (9) is fixedly connected to the aeration box (1).

7. An aeration tank for wastewater treatment according to claim 1, characterized in that: A drain pipe (11) is provided on one side of the outer surface of the aeration box (1), and an inlet pipe (13) is provided on the side of the aeration box (1) away from the drain pipe (11). Multiple bases (10) are fixedly installed on the bottom of the outer surface of the aeration box (1).

Citation Information

Patent Citations

  • A aeration tank for handling domestic sewage

    CN207748928U