Blast aeration device for sewage treatment

By introducing a worm gear structure and a stirring rod into the blower aeration device, the problem of uneven oxygen delivery was solved, and uniform distribution of oxygen was achieved throughout the aeration tank, thereby improving wastewater treatment efficiency.

CN223509743UActive Publication Date: 2025-11-04HEBEI JINGBANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422191417.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-07
Publication Date
2025-11-04
Estimated Expiration
2034-09-07

AI Technical Summary

Technical Problem

In existing wastewater treatment aeration devices, uneven oxygen delivery occurs during the oxygen supply process, resulting in slower oxygen intake in some areas. This affects the contact between wastewater and oxygen, and consequently impacts the rate of biological decomposition and degradation.

Method used

It adopts a worm gear and worm wheel structure and a stirring rod design. The motor drives the connecting rod to drive the worm and worm wheel to rotate, realizing the diffusion of oxygen at different positions. Combined with the stirring rod, it promotes the mixing of wastewater and oxygen.

Benefits of technology

This method achieves uniform oxygen distribution throughout the aeration tank, improves the contact efficiency between wastewater and oxygen, and promotes the rate of biological decomposition and degradation processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a blast aeration device for sewage treatment, and relates to the technical field of aeration devices. Comprising an aeration tank, a plurality of connecting pipes are fixed between the inner walls of the two sides of the aeration tank, the top ends of the connecting pipes fixedly communicate with a plurality of conveying pipes, the outer walls of the conveying pipes are rotationally connected with rotating pipes, the top ends of the rotating pipes fixedly communicate with a connecting box, and the two sides of the connecting box fixedly communicate with air outlet pipes; a plurality of connecting rods in one-to-one correspondence with the connecting pipes are rotationally connected between the inner walls of the two sides of the aeration tank. The motor is started to drive one of the connecting rods, so that one of the rotating wheels can rotate, the rotating wheel rotates to drive the belt to rotate, the other rotating wheel rotates, and finally all the rotating wheels rotate, the rotating wheels rotate to drive the connecting rods to rotate, and the connecting rods rotate to drive the worm to rotate. The worm rotates to drive the worm gear to rotate, and the worm gear rotates to drive the rotating pipe to rotate, so that the air outlet pipe rotates.
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Description

Technical Field

[0001] This utility model relates to the technical field of aeration devices, specifically a blower aeration device for sewage treatment. Background Technology

[0002] Aeration devices are crucial equipment in activated sludge systems, used to introduce air into the aeration tank. A common type is the blower aeration device, which consists of a blower, a diffuser structure, and air distribution pipes. The blower transports air through a series of pipes to the aeration device installed at the bottom of the aeration tank. The diffuser structure then transfers oxygen from the air into the mixed liquor. However, an existing wastewater treatment blower aeration device (publication number: CN221191838U) has the following disadvantages in use:

[0003] During its use, the device delivers oxygen to the water inside the tank through a delivery pipe. However, during the oxygen delivery process, the delivery pipe only delivers oxygen at designated locations, and the surrounding areas are not convenient for oxygen delivery, resulting in slow oxygen intake in some areas. To address this issue, this patent proposes a blower aeration device for wastewater treatment. Utility Model Content

[0004] The purpose of this invention is to provide a blower aeration device for sewage treatment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blower aeration device for sewage treatment, comprising an aeration tank, multiple connecting pipes fixed between the inner walls of both sides of the aeration tank, multiple conveying pipes fixedly connected to the top of the connecting pipes, a rotating pipe rotatably connected to the outer wall of the conveying pipes, a connecting box fixedly connected to the top of the rotating pipes, air outlet pipes fixedly connected to both sides of the connecting box, multiple connecting rods rotatably connected between the inner walls of both sides of the aeration tank, each corresponding to one of the connecting pipes, multiple worm gears fixedly connected to the outer wall of the connecting rods, each corresponding to one of the rotating pipes, and worm wheels fixedly connected to the outer wall of the rotating pipes, the worm wheels meshing with the worm gears.

[0006] Preferably, one end of the connecting rod passes through one side of the aeration tank and a rotating wheel is fixed to its outer wall. A belt is provided between adjacent rotating wheels. A mounting frame is fixed to one side of the aeration tank. A motor is fixed to one side of the mounting frame. The output end of the motor passes through the mounting frame and is fixed to one of the connecting rods. Multiple stirring rods are fixed to the outer wall of the connecting rod.

[0007] Preferably, an installation box is installed at one end of the aeration tank, a blower is installed inside the installation box, a main pipe is fixedly connected to one end of the installation box, one end of a connecting pipe passes through the other side of the aeration tank and is fixedly connected to the main pipe, and an air inlet pipe is fixedly connected to the top of the installation box.

[0008] Preferably, the outer wall of the conveying pipe is fixed with a fixed shell, the rotating pipe is rotatably connected inside the fixed shell, the worm and worm wheel are located inside the fixed shell, and the connecting rod passes through the fixed shell.

[0009] Preferably, the outer wall of the connecting pipe is fixed with multiple fixing plates, and the fixing plates are fixed to the inner wall of the bottom end of the aeration tank.

[0010] Preferably, a controller is installed at one end of the aeration tank, and the controller is electrically connected to the motor and the blower.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By starting the motor, the motor drives one of the connecting rods, which in turn rotates one of the rollers. This rotation of the rollers drives the belt, which in turn rotates another roller, and so on, until all the rollers are rotating. The rotation of the rollers drives the connecting rod, which in turn drives the worm gear, which in turn drives the rotating tube. This causes the gas outlet pipe to rotate, allowing oxygen to diffuse to different locations. This avoids the problem of the gas outlet pipe only delivering oxygen to a specific location, while the surrounding areas are not conducive to oxygen delivery, resulting in slow oxygen flow in some areas. This affects the contact between wastewater and oxygen, and consequently, the rate of biological decomposition and degradation in the wastewater. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This is a side view of the present invention;

[0017] Figure 5 This is a partial structural schematic diagram of the present invention.

[0018] In the diagram: 1. Aeration tank; 2. Mounting box; 3. Belt; 4. Rotary wheel; 5. Connecting pipe; 6. Main pipe; 7. Air inlet pipe; 8. Conveying pipe; 9. Fixed shell; 10. Rotating pipe; 11. Connecting box; 12. Air outlet pipe; 13. Connecting rod; 14. Agitating rod; 15. Worm gear; 16. Worm. Detailed Implementation

[0019] 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.

[0020] The blower aeration device is an important piece of equipment in the activated sludge system, used to introduce air into the aeration tank 1. A common type is the blower aeration device, which consists of a blower, a diffuser structure, and air distribution pipes. The blower transports air through a series of pipes to the aeration device installed at the bottom of the aeration tank 1. After passing through the diffuser structure, the oxygen in the air is transferred to the mixed liquor. Blower aeration utilizes the energy of mechanical waves to promote the dissolution of oxygen in water, thereby promoting the biodegradation of wastewater and sludge. When the blower blows air into the water, the oxygen molecules in the water are subjected to the shearing and impact forces generated by the bubbles, thus breaking them down into numerous tiny bubbles. These bubbles have a very large surface area, maximizing their contact area with the water, making it easier for them to adsorb and dissolve with oxygen molecules in the water, achieving rapid oxygen transfer. When oxygen molecules encounter organic matter in wastewater, they combine with microorganisms in the wastewater and provide the microorganisms with the oxygen needed for growth and metabolism, thereby accelerating the process of biological decomposition and degradation. In the process of using this equipment, wastewater needs to be sent into aeration tank 1 beforehand, and oxygen is added to the wastewater by starting the motor and blower.

[0021] like Figures 1-5 As shown, this utility model provides a technical solution: a blower aeration device for sewage treatment, including an aeration tank 1. Multiple connecting pipes 5 are fixed between the inner walls of both sides of the aeration tank 1. Multiple conveying pipes 8 are fixedly connected to the top of the connecting pipes 5. A rotating pipe 10 is rotatably connected to the outer wall of the conveying pipes 8. A connecting box 11 is fixedly connected to the top of the rotating pipe 10. Air outlet pipes 12 are fixedly connected to both sides of the connecting box 11. Multiple connecting rods 13, corresponding to the connecting pipes 5, are rotatably connected between the inner walls of both sides of the aeration tank 1. Multiple worm gears 16, corresponding to the rotating pipes 10, are fixed to the outer wall of the connecting rods 13. A worm wheel 15, corresponding to the worm gear 16, is fixed to the outer wall of the rotating pipe 10. The worm wheel 15 meshes with the worm gear 16. One end of the connecting rod 13 passes through one side of the aeration tank 1 and a rotating wheel 4 is fixed to its outer wall. A belt 3 is provided between adjacent rotating wheels 4. A mounting frame is fixed to one side of the aeration tank 1. A motor is fixed to one side of the mounting frame. The output end of the motor passes through the mounting frame and is fixed to one of the connecting rods 13. Multiple stirring rods 14 are fixed to the outer wall of the connecting rod 13.

[0022] It is important to note that by starting the motor, the motor drives one of the connecting rods 13, which in turn rotates one of the rotating wheels 4. This rotation of wheel 4 then drives the belt 3, which in turn drives another rotating wheel 4, and so on, until all the rotating wheels 4 are rotating. The rotation of the rotating wheels 4 drives the connecting rod 13, which in turn drives the worm gear 16, which in turn drives the worm wheel 15, which in turn drives the rotating tube 10, which in turn drives the exhaust tube 12. This allows oxygen to diffuse to different locations. In addition, the rotation of the connecting rod 13 drives the stirring rod 14, which in turn ensures that the wastewater and oxygen are thoroughly mixed.

[0023] like Figure 1 and Figure 4 As shown, an installation box 2 is installed at one end of the aeration tank 1, and a blower is installed inside the installation box 2. A main pipe 6 is fixedly connected to one end of the installation box 2. One end of a connecting pipe 5 passes through the other side of the aeration tank 1 and is fixedly connected to the main pipe 6. An air inlet pipe 7 is fixedly connected to the top of the installation box 2. A fixed shell 9 is fixed to the outer wall of the conveying pipe 8. A rotating pipe 10 passes through and is rotatably connected inside the fixed shell 9. A worm gear 16 and a worm wheel 15 are located inside the fixed shell 9. A connecting rod 13 passes through the fixed shell 9. Multiple fixing plates are fixed to the outer wall of the connecting pipe 5, and the fixing plates are fixed to the inner wall of the bottom end of the aeration tank 1. A controller is installed at one end of the aeration tank 1, and the controller is electrically connected to the motor and the blower.

[0024] It should be noted that the oxygen is sent into the main pipe 6 through the air inlet pipe 7 by the blower, and then enters the connecting pipe 5, the conveying pipe 8, the rotating pipe 10, the connecting box 11 and then is discharged through the air outlet pipe 12. The worm gear 16 and the worm wheel 15 are protected by the fixed shell 9.

[0025] Working principle: The controller starts the motor and blower. The blower sends oxygen into the main pipe 6 through the inlet pipe 7 and finally discharges it through the outlet pipe 12 to contact the sewage. The motor drives one of the connecting rods 13, which causes one of the rotating wheels 4 to rotate. This rotating wheel 4 drives the belt 3 to rotate, which in turn drives the other rotating wheel 4. Eventually, all the rotating wheels 4 rotate, which in turn drives the connecting rod 13 to rotate. The connecting rod 13 drives the worm gear 16 to rotate, which in turn drives the worm wheel 15 to rotate. The worm wheel 15 drives the rotating pipe 10 to rotate, which in turn drives the outlet pipe 12. This allows oxygen to diffuse to different locations, preventing the outlet pipe 12 from only supplying oxygen to a designated location. The surrounding areas are not conducive to oxygen supply, which would lead to slow oxygen flow in some areas, affecting the contact between sewage and oxygen, and thus affecting the rate of biological decomposition and degradation in sewage.

[0026] 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 of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A blower aeration device for wastewater treatment, comprising an aeration tank (1), characterized in that: Multiple connecting pipes (5) are fixed between the inner walls of both sides of the aeration tank (1). Multiple conveying pipes (8) are fixedly connected to the top of the connecting pipes (5). A rotating pipe (10) is rotatably connected to the outer wall of the conveying pipes (8). A connecting box (11) is fixedly connected to the top of the rotating pipe (10). An air outlet pipe (12) is fixedly connected to both sides of the connecting box (11). Multiple connecting rods (13) corresponding to the connecting pipes (5) are rotatably connected between the inner walls of both sides of the aeration tank (1). Multiple worm gears (16) corresponding to the rotating pipes (10) are fixed to the outer wall of the connecting rods (13). A worm wheel (15) corresponding to the worm gear (16) is fixed to the outer wall of the rotating pipe (10). The worm wheel (15) meshes with the worm gear (16).

2. The wastewater treatment aeration device according to claim 1, characterized in that: One end of the connecting rod (13) passes through one side of the aeration tank (1) and a rotating wheel (4) is fixed to its outer wall. A belt (3) is provided between adjacent rotating wheels (4). A mounting frame is fixed to one side of the aeration tank (1). A motor is fixed to one side of the mounting frame. The output end of the motor passes through the mounting frame and is fixed to one of the connecting rods (13). Multiple stirring rods (14) are fixed to the outer wall of the connecting rod (13).

3. The wastewater treatment aeration device according to claim 1, characterized in that: An installation box (2) is installed at one end of the aeration tank (1). A blower is installed inside the installation box (2). A main pipe (6) is fixedly connected to one end of the installation box (2). One end of the connecting pipe (5) passes through the other side of the aeration tank (1) and is fixedly connected to the main pipe (6). An air inlet pipe (7) is fixedly connected to the top of the installation box (2).

4. The wastewater treatment aeration device according to claim 1, characterized in that: The outer wall of the conveying pipe (8) is fixed with a fixed shell (9), the rotating pipe (10) is rotatably connected inside the fixed shell (9), the worm (16) and the worm wheel (15) are located inside the fixed shell (9), and the connecting rod (13) passes through the fixed shell (9).

5. The wastewater treatment aeration device according to claim 1, characterized in that: The outer wall of the connecting pipe (5) is fixed with multiple fixing plates, which are fixed to the bottom inner wall of the aeration tank (1).

6. The wastewater treatment aeration device according to claim 1, characterized in that: A controller is installed at one end of the aeration tank (1), and the controller is electrically connected to the motor and the blower.

Citation Information

Patent Citations

  • Blast aeration device for sewage treatment

    CN221191838U