Aeration device for biodegradation sewage treatment AO tank

By introducing anti-uneven distribution and anti-clogging components into the aeration device of the AO tank for biodegradable wastewater treatment, the problems of uneven bubble distribution and pipe blockage were solved, improving oxygen utilization and equipment operating efficiency while reducing energy consumption.

CN223963342UActive Publication Date: 2026-03-03SHANGHAI MINGNUO ENVIRONMENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In existing aeration devices for biodegradable wastewater treatment AO tanks, bubbles are difficult to disperse evenly, resulting in low oxygen utilization efficiency and increased energy consumption.

Method used

The system employs anti-uneven distribution and anti-clogging components. A motor-driven threaded rod moves a swing plate to agitate the air bubbles, ensuring uniform distribution. A vibration component also prevents pipe blockage, thereby improving oxygen utilization and extending equipment lifespan.

Benefits of technology

This achieves uniform bubble distribution, improves oxygen utilization, reduces energy consumption, and extends equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of aeration, and provides a biodegradation sewage treatment AO tank aeration device which comprises supporting legs, the tops of the supporting legs are fixedly connected with an aeration tank, the top of the aeration tank is provided with a non-uniformity prevention assembly, the non-uniformity prevention assembly comprises a rectangular plate, one end of the rectangular plate is fixedly connected to the side face of the aeration tank, and the other end of the rectangular plate is fixedly connected to the bottom of the aeration tank. A motor is fixedly connected to the side face of the rectangular plate, a threaded rod is fixedly connected to an output shaft of the motor, a threaded sleeve is in threaded connection to the circumferential face of the threaded rod, a limiting rod is fixedly connected to the side face of the motor, the end, away from the motor, of the limiting rod penetrates through the side face of the threaded sleeve, and a long rod is fixedly connected to the threaded sleeve. The bottom of the long rod is fixedly connected with a swing plate, and the side surface of the aeration tank is fixedly connected with an aerator host. According to the technical scheme, the problems that in the prior art, bubble dispersion cannot be promoted, and bubbles cannot be prevented from being concentrated in a local area are solved.
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Description

Technical Field

[0001] This utility model relates to the field of aeration technology, specifically to an aeration device for a biodegradable wastewater treatment AO tank. Background Technology

[0002] In biodegradation wastewater treatment, the AO (anaerobic-aerobic) aeration device is a key piece of equipment. It helps microorganisms decompose organic matter in wastewater by providing suitable gas exchange. AO tanks typically consist of two main stages: an anaerobic stage and an aerobic stage, used to remove nitrogen and organic matter from wastewater, respectively.

[0003] According to a public announcement of an aeration device for a biodegradable wastewater treatment AO tank (publication number: CN 207933121 U), it includes an air inlet pipe, branch pipes and aeration pipes. The aeration pipes are evenly distributed on both sides of the branch pipes. There are multiple branch pipes. The branch pipes are connected to the air inlet pipe. A switching valve is installed at the connection between the air inlet pipe and the branch pipe. The switching valve is connected to multiple branch pipes. A baffle plate is installed at the top of the aeration pipe.

[0004] In the aforementioned application, the cooperation between components such as the intake pipe and branch pipe makes it difficult to solve the problem of not being able to promote bubble dispersion and avoid bubble concentration in local areas, resulting in inefficient use of oxygen and increased unnecessary energy consumption, which needs to be improved. Utility Model Content

[0005] This invention proposes an aeration device for an AO tank in a biodegradable wastewater treatment system, which solves a problem in related technologies regarding aeration devices for AO tanks in biodegradable wastewater treatment systems.

[0006] The technical solution of this utility model is as follows: An aeration device for a biodegradable wastewater treatment AO tank includes a support leg, an aeration tank fixedly connected to the top of the support leg, an anti-unevenness component provided on the top of the aeration tank, the anti-unevenness component including a rectangular plate, one end of the rectangular plate fixedly connected to the side of the aeration tank, a motor fixedly connected to the side of the rectangular plate, a threaded rod fixedly connected to the output shaft of the motor, a threaded sleeve threadedly connected to the circumferential surface of the threaded rod, a limit rod fixedly connected to the side of the motor, and the end of the limit rod away from the motor passing through the side of the threaded sleeve. A long rod is fixedly connected to the threaded sleeve, and a swing plate is fixedly connected to the bottom of the long rod. An aerator main unit is fixedly connected to the side of the aeration tank, and an L-shaped pipe passes through the side of the aerator main unit. A thin rod is fixedly connected to the side of the aeration tank, and a motor is fixedly connected to one end of the thin rod. A blower is installed at one end of the motor, and a suction pipe passes through the side of the blower. A thick pipe passes through the side of the aerator main unit, and an aeration pipe passes through the end of the thick pipe away from the aerator main unit. A cylindrical pipe passes through the side of the aeration pipe, and a microporous aeration pipe passes through the top of the aeration pipe.

[0007] Optionally, several aeration pipes are provided and arranged in a linear array at the top of the aeration pipes. Two swing plates are provided, and a switch is provided on the side of the motor. The switch is designed to facilitate direct control of the motor, making operation more convenient.

[0008] Optionally, the swing plate is located inside the aeration tank, at the top of the microporous aeration pipe, and the aeration tank is located on the displacement trajectory of the swing plate. This design allows the wastewater emitted from inside the aeration tank to swing when the swing plate moves, preventing uneven aeration.

[0009] Optionally, the support legs are provided in several pairs and are symmetrical to each other along the vertical central axis of the aeration tank. The aeration pipe is provided in several pairs and the support legs are provided to facilitate stable support of the aeration tank.

[0010] Optionally, the top of the aeration tank is provided with an anti-clogging component, which includes a crossbar. The bottom of the crossbar is fixedly connected to the top of the threaded sleeve. A squeezing rod is fixedly connected to the side of the crossbar. A support plate is fixedly connected to the side of the aeration tank. A sliding groove is opened on the side of the support plate. A sliding block is slidably connected to the inner wall of the sliding groove. A striking rod is fixedly connected to the side of the sliding block. The striking rod strikes the suction pipe, causing vibration and reducing clogging during suction.

[0011] Optionally, a round rod is fixedly connected to the inner wall of the chute, with one end of the round rod away from the chute passing through the side of the sliding block. A drain pipe passes through the side of the aeration tank, and a movable plate is provided at the end of the drain pipe away from the aeration tank. The design of the drain pipe facilitates drainage of the aeration tank.

[0012] Optionally, the sliding block is located on the displacement trajectory of the extrusion rod, and the suction pipe is located on the displacement trajectory of the striking rod. This design facilitates the impact of the suction pipe when the striking rod moves.

[0013] Optionally, a spring is fixedly connected to the side of the sliding block, and the end of the spring away from the sliding block is fixedly connected to the inner wall of the groove. The spring is designed so that the sliding block can automatically reset when it is not compressed.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, through the cooperation of components such as the motor, bidirectional lead screw, threaded sleeve, and swing plate inside the anti-uneven distribution component, the swing plate design enables the bubbles to be moved within the aeration tank, ensuring that the bubbles are evenly distributed in the tank water and preventing bubbles from concentrating in certain areas. The evenly distributed bubbles allow for a more balanced oxygen supply in the tank water, preventing oxygen deficiency in certain areas and thus improving the overall treatment effect. The swing plate not only promotes bubble dispersion but also prevents bubbles from concentrating in local areas, which helps to utilize oxygen more efficiently, avoids over-aeration, improves oxygen utilization, and reduces unnecessary energy consumption, thereby reducing overall energy consumption and optimizing the operating cost of the aeration device.

[0016] 2. In this utility model, through the cooperation between the squeezing rod, support plate, sliding block, and striking rod inside the anti-clogging component, the pipe can be effectively vibrated by striking it, which helps to loosen and remove blockages, keep the suction pipe unobstructed, and improve aeration efficiency. Since long-term pressure caused by blockage may damage the equipment, vibration can effectively reduce the adverse effects of blockage and help extend the service life of the aeration device. Attached Figure Description

[0017] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0018] Figure 1 This is a three-dimensional appearance structure diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the aeration tank of this utility model;

[0020] Figure 3 This is a three-dimensional side view of the threaded rod of this utility model.

[0021] Figure 4 This utility model Figure 3 A three-dimensional magnified structural diagram of A in the middle;

[0022] Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram of B.

[0023] In the diagram: 1. Support leg; 2. Aeration tank; 3. Anti-uneven distribution component; 31. Rectangular plate; 32. Motor; 33. Threaded rod; 34. Threaded sleeve; 35. Limiting rod; 36. Long rod; 37. Swinging plate; 38. Thin rod; 39. Motor; 310. Aerator main unit; 311. L-shaped pipe; 312. Suction pipe; 313. Coarse pipe; 314. Aeration pipe; 315. Cylindrical pipe; 316. Microporous aeration pipe; 4. Anti-clogging component; 41. Crossbar; 42. Extrusion rod; 43. Support plate; 44. Slide groove; 45. Sliding block; 46. Round rod; 47. Spring; 48. Striking rod; 5. Drainage pipe; 6. Movable plate. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0025] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Example 1

[0029] Reference Figures 1-5This is the first embodiment of the present invention, which proposes an aeration device for an AO tank in a biodegradable wastewater treatment plant. The device includes a support leg 1, with an aeration tank 2 fixedly connected to the top of the support leg 1. An anti-unevenness component 3 is installed on the top of the aeration tank 2. The anti-unevenness component 3 includes a rectangular plate 31, one end of which is fixedly connected to the side of the aeration tank 2. A motor 32 is fixedly connected to the side of the rectangular plate 31. A threaded rod 33 is fixedly connected to the output shaft of the motor 32. A threaded sleeve 34 is threaded onto the circumferential surface of the threaded rod 33. A limiting rod 35 is fixedly connected to the side of the motor 32, with the end of the limiting rod 35 away from the motor 32 passing through the side of the threaded sleeve 34. A long rod 36 is fixedly connected, and a swing plate 37 is fixedly connected to the bottom of the long rod 36. An aerator main unit 310 is fixedly connected to the side of the aeration tank 2. An L-shaped pipe 311 passes through the side of the aerator main unit 310. A thin rod 38 is fixedly connected to the side of the aeration tank 2. A motor 39 is fixedly connected to one end of the thin rod 38. A blower is installed at one end of the motor 39. A suction pipe 312 passes through the side of the blower. A thick pipe 313 passes through the side of the aerator main unit 310. An aeration pipe 314 passes through the end of the thick pipe 313 away from the aerator main unit 310. A cylindrical pipe 315 passes through the side of the aeration pipe 314. A microporous aeration pipe 316 passes through the top of the aeration pipe 314.

[0030] Several aeration pipes 314 are provided and arranged in a linear array on the top of the aeration pipes 314. Two swing plates 37 are provided. A switch is provided on the side of the motor 32. The switch is designed to allow for direct control of the motor 32, making operation more convenient.

[0031] The swing plate 37 is located inside the aeration tank 2 and is located on top of the microporous aeration pipe 316. The aeration tank 2 is located on the displacement trajectory of the swing plate 37. This design allows the wastewater inside the aeration tank 2 to swing when the swing plate 37 moves, preventing uneven aeration.

[0032] Several support legs 1 are provided, arranged in pairs and symmetrically arranged along the vertical central axis of the aeration tank 2. Several aeration pipes 314 are provided, and several support legs 1 are provided to facilitate stable support of the aeration tank 2.

[0033] In this embodiment, the aerator main unit 310 is typically the core component of the entire system. A motor 39 drives a blower to provide the necessary airflow. The blower generates negative pressure through rotation, drawing in external air and delivering it into the L-shaped pipe 311, the coarse pipe 313, the aeration pipe 314, and the cylindrical pipe 315. Finally, the air is dispersed into small bubbles through the microporous aeration pipe 316. These pores are extremely small, allowing the air to be broken down into countless tiny bubbles as it passes through the aeration pipe 314. These tiny bubbles provide a large gas-liquid contact area. Starting the motor 32 causes it to rotate, which in turn rotates the threaded rod 33. The rotation of the threaded rod 33 moves the threaded sleeve 34, which in turn moves the long rod 36 and the swing plate 37. The swing plate 37 is located within the microporous aeration pipe 315. 6. Inside aeration tank 2, the movement of the oscillating plate 37 agitates the air bubbles, promoting oxygen dissolution and allowing small bubbles to disperse evenly within the tank. The oscillating plate 37's design agitates the air bubbles, ensuring they are evenly distributed in the water and preventing them from concentrating in certain areas. This even distribution of bubbles ensures a more balanced oxygen supply, preventing oxygen deficiency in certain areas and improving the overall treatment effect. The oscillating plate 37 not only promotes bubble dispersion but also prevents bubbles from concentrating in localized areas through mechanical movement. This helps to utilize oxygen more efficiently, avoids over-aeration, improves oxygen utilization, and reduces unnecessary energy consumption, thereby lowering overall energy consumption and optimizing the operating cost of the aeration device.

[0034] Example 2

[0035] Reference Figures 3-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: an anti-clogging component 4 is provided on the top of the aeration tank 2. The anti-clogging component 4 includes a crossbar 41. The bottom of the crossbar 41 is fixedly connected to the top of the threaded sleeve 34. A squeezing rod 42 is fixedly connected to the side of the crossbar 41. A support plate 43 is fixedly connected to the side of the aeration tank 2. A sliding groove 44 is opened on the side of the support plate 43. A sliding block 45 is slidably connected to the inner wall of the sliding groove 44. A striking rod 48 is fixedly connected to the side of the sliding block 45. The striking rod 48 strikes the suction pipe 312, causing vibration of the suction pipe 312 and reducing clogging during suction.

[0036] A round rod 46 is fixedly connected to the inner wall of the chute 44. The end of the round rod 46 away from the chute 44 passes through the side of the sliding block 45. A drain pipe 5 passes through the side of the aeration tank 2. A movable plate 6 is provided at the end of the drain pipe 5 away from the aeration tank 2. The design of the drain pipe 5 facilitates drainage of the aeration tank 2.

[0037] The sliding block 45 is located on the displacement trajectory of the extrusion rod 42, and the suction pipe 312 is located on the displacement trajectory of the striking rod 48. This design makes it convenient for the striking rod 48 to strike the suction pipe 312 when it moves.

[0038] A spring 47 is fixedly connected to the side of the sliding block 45. The end of the spring 47 away from the sliding block 45 is fixedly connected to the inner wall of the slide groove 44. The design of the spring 47 allows the sliding block 45 to automatically reset when it is not compressed.

[0039] Compared to Example 1, further, the movement of the threaded sleeve 34 will drive the crossbar 41 and the pressing rod 42 to move. The movement of the pressing rod 42 will press against the sliding block 45, and the movement of the sliding block 45 will drive the striking rod 48 to move. The suction pipe 312 is located on the movement trajectory of the striking rod 48. When the striking rod 48 moves, it will strike the suction pipe 312, vibrating the suction pipe 312 and reducing the possibility of blockage when the suction pipe 312 is drawing air. During the sewage treatment process, the suction pipe 312 may become blocked due to the accumulation of sludge, microorganisms or other sediments, affecting normal aeration and air circulation. By striking the suction pipe 312, the pipe can be effectively vibrated, helping to loosen and remove blockages, keeping the suction pipe 312 unobstructed, and improving aeration efficiency. Since long-term pressure caused by blockage may damage the equipment, vibration can effectively reduce the adverse effects of blockage and help extend the service life of the aeration device.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A biodegradable sewage treatment AO tank aeration device, characterized by, The utility model provides a kind of aeration tank, including support leg (1), the top of support leg (1) is fixedly connected with aeration tank (2), the top of aeration tank (2) is provided with uneven prevention component (3); The uneven prevention component (3) includes a rectangular plate (31), one end of the rectangular plate (31) is fixedly connected to the side of the aeration tank (2), the side of the rectangular plate (31) is fixedly connected with a motor (32), the output shaft of the motor (32) is fixedly connected with a threaded rod (33), the circumferential surface of the threaded rod (33) is threadedly connected with a threaded sleeve (34), the side of the motor (32) is fixedly connected with a limit rod (35), the end of the limit rod (35) away from the motor (32) penetrates the side of the threaded sleeve (34), the threaded sleeve (34) is fixedly connected with a long rod (36), the bottom of the long rod (36) is fixedly connected with a swing plate (37), the side of the aeration tank (2) is fixedly connected with an aerator main machine (310), the side of the aerator main machine (310) penetrates an L-shaped pipe (311), the side of the aeration tank (2) is fixedly connected with a thin rod (38), one end of the thin rod (38) is fixedly connected with a motor (39), one end of the motor (39) is provided with a fan, the side of the fan penetrates a suction pipe (312), the side of the aerator main machine (310) penetrates a thick pipe (313), the end of the thick pipe (313) away from the aerator main machine (310) penetrates an aeration pipe (314), the side of the aeration pipe (314) penetrates a cylindrical pipe (315), the top of the aeration pipe (314) penetrates a microporous aeration pipe (316).

2. The biodegradable wastewater treatment AO tank aeration device according to claim 1, characterized in that, The aeration pipe (314) is provided with a plurality of, and along linear array at the top of the aeration pipe (314), the swing plate (37) is provided with two, the side of the motor (32) is provided with a switch.

3. The biodegradable wastewater treatment AO tank aeration device according to claim 2, characterized in that, The swing plate (37) is located inside the aeration tank (2), the swing plate (37) is located at the top of the microporous aeration pipe (316), and the aeration tank (2) is located on the displacement track of the swing plate (37).

4. The biodegradable wastewater treatment AO tank aeration device according to claim 3, characterized in that, The support leg (1) is provided with a plurality of, two two groups, and is mutually symmetrical along the vertical central axis of the aeration tank (2), and the aeration pipe (314) is provided with a plurality of.

5. The biodegradable wastewater treatment AO tank aeration device according to claim 4, characterized in that, The top of the aeration tank (2) is provided with a blockage prevention component (4), the blockage prevention component (4) includes a cross bar (41), the bottom of the cross bar (41) is fixedly connected to the top of the threaded sleeve (34), the side of the cross bar (41) is fixedly connected with an extrusion rod (42), the side of the aeration tank (2) is fixedly connected with a support plate (43), the side of the support plate (43) is provided with a sliding groove (44), the inner wall of the sliding groove (44) is slidably connected with a sliding block (45), the side of the sliding block (45) is fixedly connected with a knocking rod (48).

6. The biodegradable wastewater treatment AO tank aeration device according to claim 5, characterized in that, The inner wall of the sliding groove (44) is fixedly connected with a round rod (46), one end of the round rod (46) away from the sliding groove (44) penetrates the side of the sliding block (45), the side of the aeration tank (2) penetrates a drain pipe (5), and one end of the drain pipe (5) away from the aeration tank (2) is provided with a movable plate (6).

7. The biodegradable wastewater treatment AO tank aeration device according to claim 6, characterized in that, The sliding block (45) is located on the displacement track of the extrusion rod (42), and the air suction pipe (312) is located on the displacement track of the knocking rod (48).

8. The biodegradable wastewater treatment AO tank aeration device according to claim 7, characterized in that, The side of the sliding block (45) is fixedly connected with a spring (47), and one end of the spring (47) away from the sliding block (45) is fixedly connected to the inner wall of the sliding groove (44).

Citation Information

Patent Citations

  • Biodegradable sewage treatment AO pond aeration equipment

    CN207933121U