Sewage treatment air flotation device
By designing a wastewater treatment flotation device, which utilizes components such as an extraction pump, gas injection, agitation shaft, and a tilting motor, the problem of incomplete treatment by existing flotation machines is solved, achieving efficient and comprehensive wastewater treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-07
AI Technical Summary
Existing air flotation machines in wastewater treatment rely solely on gas treatment, resulting in incomplete treatment and the presence of impurities in the wastewater affecting subsequent treatment outcomes.
A wastewater treatment flotation device was designed. Wastewater is drawn into the treatment tank by an extraction pump. Combined with gas injection and additive mixing, the flotation device is stirred by an agitator shaft and the scum floats under the inner partition plate. The scum is automatically scraped off by a tilting motor and a scraper box.
It achieves efficient and comprehensive wastewater treatment, improves treatment efficiency, ensures that debris is effectively floated and collected, and reduces interference with subsequent treatment.
Smart Images

Figure CN224091657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment flotation device. Background Technology
[0002] A dissolved air flotation (DAF) system generates numerous microbubbles in water, causing air to adhere to suspended particles in the form of highly dispersed microbubbles. These microbubbles create a density less than water, allowing the particles to float on the surface using buoyancy, thus achieving solid-liquid separation. DAF systems are categorized into ultra-efficient shallow DAF systems, vortex DAF systems, and horizontal flow DAF systems. They are used in water supply, industrial wastewater, and municipal sewage treatment. The advantages of DAF systems include low investment, small footprint, high degree of automation, and convenient operation and management.
[0003] The current use of dissolved air flotation (DAF) machines, which only involve gas processing, results in insufficient wastewater treatment and fails to meet current wastewater treatment needs. Furthermore, the presence of impurities in the wastewater can affect subsequent treatment processes, making it unsuitable for current wastewater treatment applications. Utility Model Content
[0004] The purpose of this utility model is to provide a wastewater treatment flotation device to solve the problems mentioned in the background art, such as the fact that current flotation machines, due to their simple gas treatment operation, do not treat wastewater thoroughly enough and cannot meet the current wastewater treatment needs, and that the presence of impurities in the wastewater affects subsequent treatment operations, which is detrimental to the current wastewater treatment use.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A wastewater treatment flotation device includes a treatment tank. A mounting base block is symmetrically threaded to the bottom of the treatment tank. A main air tank is vertically fixed to one side of the treatment tank. A pump is fixed to one side of the treatment tank. A discharge valve is fixed to the side of the treatment tank away from the pump. A fixed top plate is horizontally fixed to the top surface of the treatment tank. A top motor is fixed to the top surface of the fixed top plate. A material box is horizontally fixed to the top surface of the fixed top plate. A horizontal top groove is formed on the top surface of the treatment tank. A scraper box is horizontally engaged with the inner side of the treatment tank. The top surface of the treatment tank is connected to a movable top block. A gas bottom plate is horizontally fixed to the inner bottom surface of the treatment tank. An inner isolation plate is vertically fixed to the inner side of the treatment tank. A feeding valve body is fixedly snapped into the inner side wall of the fixed top plate. An agitator shaft is vertically inserted into the bottom surface of the fixed top plate. A tilting motor is fixedly installed on one side of the movable top block. A tilting shaft is horizontally inserted into the inner side of the top channel of the movable top block. A drive block is fixedly connected to the bottom surface of the movable top block. A scraping side groove is horizontally opened on the side of the scraping box. A tilting connecting rod is horizontally fixed to one end of the scraping box. A fixing sleeve hole is opened on the side of the tilting connecting rod.
[0007] In a preferred embodiment of this utility model, the top surface of the treatment tank is open, and there are four mounting blocks. The bottom of the four mounting blocks is provided with a mounting plate structure, and the top of the mounting blocks is fixedly connected to the bottom surface of the treatment tank near the four corner screw holes by screws.
[0008] In a preferred embodiment of this utility model, there are multiple main gas tanks, which are arranged in parallel on one side of the treatment tank. The internal valve of the main gas tank is connected to the inside of the gas base plate through a pipe. The extraction pump is fixedly connected to the center line of one side of the treatment tank near the bottom, and the extraction pump is connected to the inside of the treatment tank.
[0009] In a preferred embodiment of this utility model: the discharge valve body is fixedly connected to the side centerline of the treatment tank near the bottom through hole, the fixed top plate is horizontally fixedly connected to the top opening of the treatment tank near one end, the top motor is fixedly connected to the top surface centerline of the fixed top plate near one end, and the output end of the top motor is vertically downward fixedly connected to the top end of the stirring shaft.
[0010] In a preferred embodiment of this utility model: the material box is horizontally fixed at the center line of the top surface of the fixed top plate, the top surface of the material box is uniformly provided with a feed inlet structure, the horizontal top groove is horizontally opened at the edge of the top opening of the processing pool, and the scraper box is horizontally set at the top opening end of the inner side of the processing pool, and the top surface of the scraper box is open.
[0011] In a preferred embodiment of this utility model: the bottom end of the movable top block is connected to the top opening end of the horizontal top groove, the top surface of the gas bottom plate is uniformly provided with exhaust port structures, and the inner isolation plate is vertically fixedly connected to the inner center line position of the treatment tank body, and the top end of the inner isolation plate is a specified distance away from the top opening of the treatment tank body.
[0012] In a preferred embodiment of this utility model, there are multiple feeding valve bodies, which are arranged horizontally in a straight line at the center line of the inner bottom surface of the fixed top plate. The feeding valve bodies are all connected to the inside of the material box, and the bottom end of the stirring shaft is vertically arranged on the inner side of the processing tank near the edge.
[0013] In a preferred embodiment of this utility model: the output end of the flipping motor is horizontally fixedly connected to one end of the flipping shaft, the drive block together with the side drive wheel is snapped into the inner side of the horizontal top groove, and the flipping connecting rod is fixedly connected to the outer side of the flipping shaft through the fixing sleeve hole.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention fixes a sewage pipe at the input end of an extraction pump. The pump draws sewage into the treatment tank. Simultaneously, the valve in the main gas tank opens, allowing gas to enter the gas base plate and be injected into the sewage within the treatment tank. The top feeding valve opens, allowing additives to flow from the material box into the sewage. A bottom motor rotates, driving a stirring shaft to rotate, mixing the sewage with the additives. Once the water reaches a designated height, it flows through the top opening of the inner partition plate into another area. Similarly, after air is injected into the flocculent wastewater at the bottom gas plate for treatment, the wastewater sludge floats to the surface. Under the rotation of the flipping motor, the flipping shaft drives the flipping connecting rod to flip from the outside to the inside of the opening of the treatment tank. Together with the scraper box at one end, it flips and is set horizontally inside the top opening of the treatment tank. After the drive block moves horizontally along the horizontal top groove, the scraper side groove scrapes the sludge on the water surface into the scraper box. The sludge inside is then poured out by flipping. The integrated structure makes the treatment more efficient and comprehensive, and the combination of mixing and sludge removal structures effectively improves the wastewater treatment efficiency. Attached Figure Description
[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0017] Figure 1 A three-dimensional structural schematic diagram of a wastewater treatment flotation device;
[0018] Figure 2 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the treatment tank in a wastewater flotation device.
[0019] Figure 3 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the fixed top plate of a wastewater treatment flotation device;
[0020] Figure 4 A schematic diagram showing the three-dimensional connection details of a movable top block in a wastewater treatment flotation device;
[0021] Figure 5 This is a structural schematic diagram showing the three-dimensional connection details of the scraper box of a wastewater treatment flotation device.
[0022] In the diagram: 1. Treatment tank; 2. Mounting base block; 3. Main gas tank; 4. Extraction pump; 5. Discharge valve; 6. Fixed top plate; 7. Top motor; 8. Material box; 9. Horizontal top groove; 10. Scraper box; 11. Moving top block; 12. Gas bottom plate; 13. Inner isolation plate; 14. Feeding valve; 15. Agitator shaft; 16. Tilting motor; 17. Tilting shaft; 18. Drive block; 19. Scraper side groove; 20. Tilting connecting rod; 21. Fixed sleeve hole. Detailed Implementation
[0023] Please see Figure 1 In this embodiment of the present invention, a wastewater treatment flotation device includes a treatment tank 1. The bottom surface of the treatment tank 1 is symmetrically and threadedly connected to mounting blocks 2. The top surface of the treatment tank 1 is open. There are four mounting blocks 2, and each of the four mounting blocks 2 has a mounting plate structure at its bottom end. The top of each mounting block 2 is threadedly and fixedly connected to a screw hole near one of the four corners of the bottom surface of the treatment tank 1. A main air tank 3 is vertically and fixedly connected to one side of the treatment tank 1. A pump body 4 is fixedly connected to the treatment tank 1. Multiple main gas tanks 3 are arranged parallel to each other on one side of the treatment tank 1. The internal valves of the main gas tanks 3 are connected to the interior of the gas base plate 12 via pipes. The pump body 4 is fixedly connected to the centerline of one side of the treatment tank 1 near the bottom and is connected to the interior of the treatment tank 1. A discharge valve 5 is fixedly installed on the side of the treatment tank 1 away from the pump body 4. Water is discharged from the top surface of the treatment tank 1. A fixed top plate 6 is fixedly connected to the top surface of the fixed top plate 6. A top motor 7 is fixedly connected to the top surface of the fixed top plate 6. A discharge valve body 5 is fixedly connected to the side centerline of the treatment tank 1 near the bottom through hole. The fixed top plate 6 is horizontally fixedly connected to the top opening of the treatment tank 1 near one end. The top motor 7 is fixedly connected to the top surface of the fixed top plate 6 near one end, and the output end of the top motor 7 is vertically downward fixedly connected to the top of the stirring shaft 15. A material box is horizontally fixedly installed on the top surface of the fixed top plate 6. The top surface of the treatment tank 1 is horizontally provided with a horizontal top groove 9. The inner side of the treatment tank 1 is horizontally connected with a scraper box 10. The material box 8 is horizontally fixed at the center line of the top surface of the fixed top plate 6. The top surface of the material box 8 is evenly provided with a feed inlet structure. The horizontal top groove 9 is horizontally opened at the edge of the top opening of the treatment tank 1. The scraper box 10 is horizontally set at the inner top opening end of the treatment tank 1, and the top surface of the scraper box 10 is open. The top surface of the treatment tank 1 is connected to a movable top block 11.
[0024] Please see Figure 2-5In this embodiment of the utility model, a wastewater treatment flotation device is provided, wherein a gas bottom plate 12 is horizontally fixedly connected to the inner bottom surface of the treatment tank 1, and an inner isolation plate 13 is vertically fixedly connected to the inner side of the treatment tank 1. The bottom end of a movable top block 11 is connected to the top opening of a horizontal top groove 9. Exhaust vents are evenly distributed on the top surface of the gas bottom plate 12. The inner isolation plate 13 is vertically fixedly connected to the inner centerline of the treatment tank 1, and the top end of the inner isolation plate 13 is a specified distance from the top opening of the treatment tank 1. A feeding valve body 14 is fixedly snapped onto the inner wall of a fixed top plate 6, and an agitator shaft 15 is vertically inserted into the bottom surface of the fixed top plate 6. Multiple feeding valve bodies 14 are arranged horizontally in a straight line at the centerline of the inner bottom surface of the fixed top plate 6. All are connected to the interior of the material box 8. The bottom end of the stirring shaft 15 is vertically positioned inside the processing tank 1 near the edge. A flipping motor 16 is fixedly installed on one side of the moving top block 11. A flipping shaft 17 is horizontally inserted into the inner side of the top channel of the moving top block 11. A drive block 18 is fixedly connected to the bottom surface of the moving top block 11. A scraping side groove 19 is horizontally opened on the side of the scraping box 10. A flipping connecting rod 20 is horizontally fixedly connected to one end of the scraping box 10. A fixing sleeve hole 21 is opened on the side of the flipping connecting rod 20. The output end of the flipping motor 16 is horizontally fixedly connected to one end of the flipping shaft 17. The drive block 18, together with the side drive wheel, is locked onto the inner side of the horizontal top groove 9. The flipping connecting rod 20 is fixedly connected to the outer side of the flipping shaft 17 through the fixing sleeve hole 21.
[0025] The working principle of this utility model is as follows:
[0026] The sewage pipe is fixedly connected to the input end of the extraction pump body 4. The extraction pump body 4 draws the sewage into the treatment tank 1. Simultaneously, the valve of the main gas tank 3 opens, allowing gas to enter the gas base plate 12 and be injected into the sewage inside the treatment tank 1. The top feeding valve 14 opens, allowing additives to enter the sewage from the material box 8. The rotation of the top motor 7 at the bottom drives the agitator shaft 15, causing it to rotate and mix with the additives. After the water level rises to a designated height, the mixture is then... The top opening of the inner partition plate 13 leads to another area. Similarly, at the bottom, air is injected into the flocculent sewage through the gas bottom plate 12 for treatment, allowing the sewage sludge to float to the surface. Under the rotation of the flipping motor 16, the flipping shaft 17 drives the flipping connecting rod 20 to flip from the outside to the inside of the opening of the treatment tank 1. Together with the scraper box 10 at one end, it flips and is horizontally set inside the top opening of the treatment tank 1. After the drive block 18 moves horizontally along the horizontal top groove 9, the scraper side groove 19 scrapes the sludge on the water surface into the scraper box 10 and collects it inside. The sludge inside is then poured out through the flipping mechanism.
[0027] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A wastewater treatment flotation device, comprising a treatment tank (1), characterized in that, The bottom surface of the treatment tank (1) is symmetrically threaded with a mounting base block (2). A main gas tank (3) is vertically fixed to one side of the treatment tank (1). A pump body (4) is fixed to one side of the treatment tank (1). A discharge valve body (5) is fixedly installed on the side of the treatment tank (1) away from the pump body (4). A fixed top plate (6) is horizontally fixed to the top surface of the treatment tank (1). A top motor (7) is fixedly connected to the top surface of the fixed top plate (6). A material box (8) is horizontally fixed to the top surface of the fixed top plate (6). A horizontal top groove (9) is horizontally opened on the top surface of the treatment tank (1). A scraper box (10) is horizontally snapped into the inner side of the treatment tank (1). A movable top block (11) is connected to the top surface of the treatment tank (1). A gas bottom plate (12) is horizontally fixed to the inner bottom surface of the treatment tank (1). An inner isolation plate (13) is vertically fixed to the inner side of the treatment tank (1). A feeding valve body (14) is fixedly snapped into the inner wall of the fixed top plate (6). An agitator shaft (15) is vertically inserted into the bottom surface of the fixed top plate (6). A flipping motor (16) is fixedly installed on one side of the moving top block (11). A flipping shaft (17) is horizontally inserted into the inner side of the top channel of the moving top block (11). A drive block (18) is fixedly connected to the bottom surface of the moving top block (11). A scraping side groove (19) is horizontally opened on the side of the scraping box (10). A flipping connecting rod (20) is horizontally fixed to one end of the scraping box (10). A fixing sleeve hole (21) is opened on the side of the flipping connecting rod (20).
2. The wastewater treatment flotation device according to claim 1, characterized in that, The top surface of the treatment tank (1) is open, and there are four mounting blocks (2). The bottom of the four mounting blocks (2) is provided with a mounting plate structure. The top of the mounting blocks (2) is fixedly connected to the bottom surface of the treatment tank (1) near the four corner screw holes by screw threads.
3. The wastewater treatment flotation device according to claim 1, characterized in that, The number of main gas tanks (3) is multiple, and the multiple main gas tanks (3) are arranged in parallel on one side of the treatment tank (1). The internal valve of the main gas tank (3) is connected to the inside of the gas base plate (12) through a pipe. The extraction pump (4) is fixedly connected to the center line of one side of the treatment tank (1) near the bottom, and the extraction pump (4) is connected to the inside of the treatment tank (1).
4. The wastewater treatment flotation device according to claim 1, characterized in that, The discharge valve body (5) is fixedly connected to the side center line of the treatment tank body (1) near the bottom through hole. The fixed top plate (6) is horizontally fixedly connected to the top opening of the treatment tank body (1) near one end. The top motor (7) is fixedly connected to the top surface center line of the fixed top plate (6) near one end, and the output end of the top motor (7) is vertically downward fixedly connected to the top end of the stirring shaft (15).
5. A wastewater treatment flotation device according to claim 1, characterized in that, The material box (8) is horizontally fixed at the center line of the top surface of the fixed top plate (6). The top surface of the material box (8) is uniformly provided with a feed inlet structure. The horizontal top groove (9) is horizontally opened at the edge of the top opening of the processing tank (1). The scraper box (10) is horizontally set at the inner top opening end of the processing tank (1), and the top surface of the scraper box (10) is open.
6. A wastewater treatment flotation device according to claim 1, characterized in that, The bottom end of the movable top block (11) is connected to the top opening end of the horizontal top groove (9). The top surface of the gas bottom plate (12) is uniformly provided with exhaust port structures. The inner isolation plate (13) is vertically fixedly connected to the inner center line of the treatment tank (1), and the top end of the inner isolation plate (13) is a specified distance from the top opening of the treatment tank (1).
7. A wastewater treatment flotation device according to claim 1, characterized in that, The number of feeding valve bodies (14) is multiple, and the multiple feeding valve bodies (14) are arranged horizontally in a straight line at the center line of the inner bottom surface of the fixed top plate (6). The feeding valve bodies (14) are all connected to the inside of the material box (8). The bottom end of the stirring shaft (15) is vertically set at the inner side of the processing tank (1) near the edge.
8. A wastewater treatment flotation device according to claim 1, characterized in that, The output end of the flipping motor (16) is horizontally fixedly connected to one end of the flipping shaft (17), the drive block (18) together with the side drive wheel is locked to the inner side of the horizontal top groove (9), and the flipping connecting rod (20) is fixedly connected to the outer side of the flipping shaft (17) through the fixing sleeve hole (21).