High-efficiency aeration tank for domestic sewage treatment
By using drive components and a motor transmission system, the rotation of the stirring blades and the position adjustment of the filter screen are achieved, which solves the problem of insufficient foam removal in the aeration tank and improves the wastewater treatment efficiency and aeration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI HUACHUANG ENVIRONMENTAL PROTECTION GRP CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-02
AI Technical Summary
Existing high-efficiency aeration tanks for domestic sewage treatment cannot adjust the filter screen according to the height of the sewage in the aeration tank, resulting in insufficient foam cleaning.
The lifting plate and rotating rod are raised and lowered by the drive component. Combined with the motor and gear transmission system, the stirring blades are rotated and moved. The position of the filter screen is adjusted by the electric push rod to clean the foam on the surface of different sewage levels.
It improves the uniformity of mixing wastewater and air bubbles, enhances aeration efficiency, and effectively cleans up foam of different heights, thus improving the practicality of the aeration tank.
Smart Images

Figure CN224313362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aeration tank technology, specifically a high-efficiency aeration tank for domestic sewage treatment. Background Technology
[0002] An aeration tank is a biochemical reactor designed according to the characteristics of microorganisms. The degree of degradation of organic pollutants mainly depends on the aeration reaction conditions designed. It mainly uses the activated sludge process for wastewater treatment. The tank provides a certain wastewater retention time to meet the oxygen requirements of aerobic microorganisms and the mixing conditions for sufficient contact between wastewater and activated sludge. In order to improve the aeration effect, it is necessary to minimize the size of the bubbles, increase the number of bubbles, increase the turbulence of the liquid, increase the installation depth of the aerator, and extend the contact time between the bubbles and the liquid.
[0003] A search revealed a Chinese patent publication number, CN218465629U, which discloses a high-efficiency aeration tank for domestic sewage treatment. This patent solves the problem that existing aeration tanks cannot quickly clean the surface foam during use, which leads to a decrease in the survival rate of microorganisms inside the aeration tank within a certain period of time. This is achieved by setting up an aeration tank body, inlet and outlet, solenoid valve, inlet and outlet pipes, cleaning device, positioning shell, turning device, and a second motor.
[0004] Although the aforementioned patent can quickly clean the foam on the inner surface of the aeration tank, the aforementioned high-efficiency aeration tank for domestic sewage treatment still has the following problems: it can only clean the foam on the surface of sewage at a fixed height in the aeration tank, and cannot adjust the filter screen according to the height of the sewage in the aeration tank.
[0005] To address the aforementioned issues, a high-efficiency aeration tank for domestic sewage treatment is proposed. Utility Model Content
[0006] The purpose of this invention is to provide a high-efficiency aeration tank for domestic sewage treatment, which solves the problem in the prior art that the filter screen cannot be adjusted according to the height of the sewage in the aeration tank.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency aeration tank for domestic sewage treatment, comprising an aeration tank, driving components on both sides of the aeration tank, a lifting plate connected between the two driving components, a slot through the lifting plate, two fixed plates fixedly connected to the top of the lifting plate on both sides, a sliding groove on the opposite side of the two fixed plates, a sliding plate slidably connected in the two sliding grooves, a first motor fixedly connected to the top of the sliding plate, a rotating rod fixedly connected to the output end of the first motor through the sliding plate, multiple stirring blades fixedly connected to the outside of the lower part of the rotating rod, a gear fixedly connected to the outside of the upper part of the rotating rod, a second motor fixedly connected to the top left side of the aeration tank, a lead screw fixedly connected to the output end of the second motor, a moving plate threadedly connected to the outside of the lead screw, two electric push rods fixedly connected to the bottom of the moving plate, a filter screen fixedly connected to the output end of the electric push rod, and an aeration device provided at the rear of the aeration tank.
[0008] By adopting the above technical solution, the first motor can drive the stirring blades below to rotate, stirring the sewage and making the sewage and air bubbles mix more evenly and fully, improving the aeration efficiency. In addition, the gears and racks can drive the stirring blades to move through the sliding plate, making the stirring effect even better.
[0009] As a further description of the above technical solution: the drive component includes a support block, a cylinder is fixedly connected to the top of the support block, a connecting block is fixedly connected to the output end of the cylinder, and the two connecting blocks are fixedly connected to the lifting plate on opposite sides.
[0010] By adopting the above technical solution, the driving component can drive the lifting plate and rotating rod to rise and fall, making it convenient to clean the foam on the surface of sewage.
[0011] As a further description of the above technical solution: the aeration device includes an aerator, which is fixedly connected to the outer wall of the rear side of the aeration tank. A connecting pipe is fixedly connected to the output end of the aerator, and an aeration disc is fixedly connected to the end of the connecting pipe.
[0012] By adopting the above technical solution, oxygen is provided to the wastewater through the aeration device, which promotes the biodegradation of organic matter in the wastewater and provides sufficient oxygen for the microbial metabolism in the wastewater treatment process.
[0013] As a further description of the above technical solution: the fixing plate is disposed on both sides of the slot.
[0014] By adopting the above technical solution, it is possible to facilitate the movement of the rotating rod within the slot.
[0015] As a further description of the above technical solution: a rack is fixedly connected to the front side of the rear fixing plate, and the rack meshes with a gear.
[0016] By adopting the above technical solution, a transmission function is achieved, which can drive the slide plate to reciprocate within the slide groove.
[0017] As a further description of the above technical solution: limit blocks are fixedly connected to both sides of the two slides.
[0018] By adopting the above technical solution, the limiting block plays a limiting role, preventing the mixing blades from colliding with the aeration tank.
[0019] As a further description of the above technical solution: a guide rod is slidably connected through the right side of the movable plate, and both sides of the guide rod are fixedly connected to the aeration tank.
[0020] By adopting the above technical solution, the guide rod plays a role in limiting the movement of the plate.
[0021] As a further description of the above technical solution: the aeration disc is installed inside the aeration tank.
[0022] By adopting the above technical solution, it is convenient to supply oxygen to the aeration tank.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] 1. The present invention provides a high-efficiency aeration tank for domestic sewage treatment. Firstly, the cylinder, connecting block, fixing plate, first motor, rotating rod, stirring blade, gear, rack, and limiting block work together. The first motor can drive the stirring blade below to rotate, stirring the sewage, making the sewage and air bubbles mix more evenly and fully, improving the aeration efficiency. Furthermore, the gear and rack can drive the stirring blade to move through the sliding plate, making the stirring effect even better.
[0025] 2. The present invention provides a high-efficiency aeration tank for domestic sewage treatment. Through the coordinated operation of a second motor, a lead screw, a moving plate, a guide rod, an electric push rod, a filter screen, and an aeration tank, the lead screw drives the moving plate to move, thereby driving the filter screen to clean the foam on the surface of the sewage. Furthermore, the electric push rod can drive the filter screen to rise and fall, cleaning the foam on the surface of different sewage levels, thus enhancing its practicality. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the lifting plate structure of this utility model;
[0028] Figure 3 This is a rear-view perspective view of the aeration tank of this utility model;
[0029] Figure 4This is a top view of the overall structure of this utility model.
[0030] In the diagram: 1. Aeration tank; 2. Support block; 3. Cylinder; 4. Connecting block; 5. Lifting plate; 6. Slot; 7. Fixing plate; 8. Slide groove; 9. Slide plate; 10. First motor; 11. Rotating rod; 12. Mixing blade; 13. Gear; 14. Rack; 15. Limiting block; 16. Second motor; 17. Lead screw; 18. Moving plate; 19. Guide rod; 20. Electric push rod; 21. Filter screen; 22. Aeration disc; 23. Connecting pipe; 24. Aerator. Detailed Implementation
[0031] 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.
[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0033] Reference Figure 1-4 This utility model discloses a high-efficiency aeration tank for domestic sewage treatment, comprising an aeration tank 1. Drive components are installed on both sides of the aeration tank 1, and a lifting plate 5 is connected between the two drive components. The lifting plate 5 provides support, and a slot 6 is provided through the lifting plate 5 to facilitate the movement of a rotating rod 11. Two fixed plates 7 are fixedly connected to the top of the lifting plate 5 on both sides. A sliding groove 8 is provided on the opposite side of each of the two fixed plates 7 to facilitate the sliding of a sliding plate 9. A sliding plate 9 is slidably connected within each of the two sliding grooves 8, driving a first motor 10 to move via the sliding plate 9. The first motor 10 is fixedly connected to the top of the sliding plate 9, and the output end of the first motor 10 is fixedly connected to a rotating rod 11 through the sliding plate 9. Multiple stirring blades 12 are fixedly connected to the lower external part. The first motor 10 drives the rotating rod 11 and the stirring blades 12 to rotate. A gear 13 is fixedly connected to the upper external part of the rotating rod 11. A second motor 16 is fixedly connected to the top left side of the aeration tank 1. The second motor 16 drives the lead screw 17 to rotate. The output end of the second motor 16 is fixedly connected to the lead screw 17. The lead screw 17 is threadedly connected to the external part of the moving plate 18. The moving plate 18 drives the filter screen 21 below to move. Two electric push rods 20 are fixedly connected to the bottom of the moving plate 18. The electric push rods 20 can adjust the height of the filter screen 21. The output end of the electric push rod 20 is fixedly connected to the filter screen 21. An aeration device is set at the rear side of the aeration tank 1.
[0034] Reference Figure 1The drive assembly includes a support block 2, with a cylinder 3 fixedly connected to the top of the support block 2. A connecting block 4 is fixedly connected to the output end of the cylinder 3. The two connecting blocks 4 are fixedly connected to the lifting plate 5 on opposite sides. The drive assembly can drive the lifting plate 5 and the rotating rod 11 to rise and fall, which facilitates the cleaning of foam on the surface of sewage. The aeration device includes an aerator 24, which is fixedly connected to the rear outer wall of the aeration tank 1. A connecting pipe 23 is fixedly connected to the output end of the aerator 24, and an aeration disc 22 is fixedly connected to the end of the connecting pipe 23. The aeration disc 22 is set in the aeration tank 1. The aeration device provides oxygen for sewage treatment and promotes the biodegradation of organic matter in sewage.
[0035] Reference Figure 1 and Figure 2 The fixed plate 7 is set on both sides of the slot 6. The front side of the rear fixed plate 7 is fixedly connected to the rack 14, which meshes with the gear 13 to play a transmission role, enabling the slide plate 9 to reciprocate in the slide groove 8. Limiting blocks 15 are fixedly connected to both sides of the two slide grooves 8, and the limiting blocks 15 play a limiting role. The right side of the moving plate 18 is slidably connected to the guide rod 19, and both sides of the guide rod 19 are fixedly connected to the aeration tank 1, and the guide rod 19 plays a limiting role for the moving plate 18.
[0036] Working principle: During operation, the first motor 10 is started, driving the rotating rod 11 to rotate, which in turn drives the upper gear 13 and the lower stirring blade 12 to rotate. The rotating stirring blade 12 stirs the sewage, making the sewage and the bubbles generated by the aerator 24 mix more evenly and fully, improving the aeration efficiency. The gear 13 meshes with the rack 14, which drives the slide plate 9 and the first motor 10 to reciprocate along the slide groove 8, thereby driving the rotating rod 11 and the stirring blade 12 to move. This allows the stirring blade 12 to move while stirring, resulting in better stirring effect. When it is necessary to clean the foam on the surface of the sewage, the cylinder 3 is started, which drives the lifting plate 5 and the stirring blade 12 to rise and detach from the sewage surface through the connecting block 4. Then, the second motor 16 is started, driving the lead screw 17 to rotate. The lead screw 17 drives the moving plate 18 to move along the guide rod 19. The electric push rod 20 at the bottom of the moving plate 18 can be adjusted according to the height of the sewage water level. The moving plate 18 drives the filter screen 21 below to move, cleaning the foam on the surface of the sewage.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] 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 claims and their equivalents.
Claims
1. A high-efficiency aeration tank for domestic sewage treatment, comprising an aeration tank (1), characterized in that: Both sides of the aeration tank (1) are provided with driving components, and a lifting plate (5) is connected between the two driving components. The lifting plate (5) has a slot (6) through it. Two fixing plates (7) are fixedly connected to the top of the lifting plate (5) on both sides. Sliding grooves (8) are opened on opposite sides of the two fixing plates (7). Sliding plates (9) are slidably connected in the two sliding grooves (8). A first motor (10) is fixedly connected to the top of the sliding plate (9). A rotating rod (11) is fixedly connected to the output end of the first motor (10) through the sliding plate (9). Multiple stirring blades (12) are fixedly connected to the outside of the rod (11). A gear (13) is fixedly connected to the outside of the upper part of the rotating rod (11). A second motor (16) is fixedly connected to the top left side of the aeration tank (1). A lead screw (17) is fixedly connected to the output end of the second motor (16). A moving plate (18) is threadedly connected to the outside of the lead screw (17). Two electric push rods (20) are fixedly connected to the bottom of the moving plate (18). A filter screen (21) is fixedly connected to the output end of the electric push rod (20). An aeration device is provided on the rear side of the aeration tank (1).
2. The high-efficiency aeration tank for domestic sewage treatment according to claim 1, characterized in that: The drive assembly includes a support block (2), a cylinder (3) is fixedly connected to the top of the support block (2), a connecting block (4) is fixedly connected to the output end of the cylinder (3), and the two connecting blocks (4) are fixedly connected to the lifting plate (5) on opposite sides.
3. The high-efficiency aeration tank for domestic sewage treatment according to claim 1, characterized in that: The aeration device includes an aerator (24), which is fixedly connected to the outer wall of the rear side of the aeration tank (1). A connecting pipe (23) is fixedly connected to the output end of the aerator (24), and an aeration disc (22) is fixedly connected to the end of the connecting pipe (23).
4. The high-efficiency aeration tank for domestic sewage treatment according to claim 1, characterized in that: The fixing plate (7) is set on both sides of the slot (6).
5. The high-efficiency aeration tank for domestic sewage treatment according to claim 1, characterized in that: A rack (14) is fixedly connected to the front side of the rear fixing plate (7), and the rack (14) meshes with the gear (13).
6. The high-efficiency aeration tank for domestic sewage treatment according to claim 1, characterized in that: Limiting blocks (15) are fixedly connected to both sides of the two grooves (8).
7. The high-efficiency aeration tank for domestic sewage treatment according to claim 1, characterized in that: The right side of the movable plate (18) is slidably connected to a guide rod (19), and both sides of the guide rod (19) are fixedly connected to the aeration tank (1).
8. A high-efficiency aeration tank for domestic sewage treatment according to claim 3, characterized in that: The aeration disc (22) is installed inside the aeration tank (1).