Liquid level adjusting device for air floatation tank

Abstract

The utility model discloses a liquid level adjusting device for an air floatation tank, which comprises the air floatation tank, the inner side wall of the air floatation tank is fixedly connected with a sliding chute box, a water level adjusting component is arranged in the sliding chute box, the inner side wall of the air floatation tank close to the sliding chute box is fixedly connected with an air delivery pipe, and the air delivery pipe is provided with a water level adjusting component. A plurality of one-way valves are fixedly connected to the top of the air conveying pipe in a penetrating mode, suspended matter at the bottom can be conveniently blown to the upper portion, a vertical plate is fixedly connected to the top of the air floatation tank, a driven wheel and a driving wheel are rotationally connected to one side of the surface of the vertical plate, and a conveying belt is jointly connected to the outer portion of the driven wheel and the outer portion of the driving wheel in a sleeving mode. By arranging the air pump, the air delivery pipe, the one-way valves and the like, external air is discharged into the air delivery pipe by utilizing the air pump, and the air is discharged by combining a plurality of one-way valves, so that the effect of uniformly outputting the air to the bottom of the air floatation tank is achieved, the situation that the suspended matters cannot be completely and automatically cleaned due to different depths is avoided, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of dissolved air flotation (DAF) technology, and in particular to a liquid level regulating device for DAF. Background Technology

[0002] An air flotation tank is a structure that uses the principle of air flotation for water treatment. Its basic principle is to introduce air into the water to generate microbubbles, which cause small suspended particles (with a specific gravity of less than or close to 1) in the water to attach to the bubbles. These particles then rise to the surface with the bubbles, forming scum, thereby separating and removing suspended matter from the water and improving water quality.

[0003] The air flotation device with liquid level regulation function disclosed in CN217323433U includes a flotation cell and a slide. The slide is vertically installed inside one side of the flotation cell, and a slider slides inside the slide. A connecting rod is fixedly connected to one side of the slider, and a float is installed at the end of the connecting rod away from the slider. A limiting mechanism for limiting the slider is provided inside the slide. A slag outlet is opened on one side of the flotation cell, and an inlet pipe is connected to the other side of the flotation cell. An outlet pipe is connected to the side of the flotation cell adjacent to the inlet pipe. A slag discharge mechanism is provided inside the flotation cell.

[0004] Although the above-mentioned technical solution can adjust the liquid level and improve the effect of the air flotation device through the above structure, during use, due to the different depths of the suspended matter, the blades on the conveyor belt may not be able to reach the bottom of the suspended matter, and the suspended matter cannot be completely and automatically cleaned, resulting in inconvenience in use. In addition, it cannot scrape off the waste residue attached to the scraper, causing the waste residue on the scraper to fall back into the sewage, which is not convenient to use. Therefore, we propose a liquid level adjustment device for air flotation tanks. Utility Model Content

[0005] The technical problem this invention aims to solve is that, due to the varying depths of suspended matter, the scrapers on the conveyor belt may not be able to reach the bottommost suspended matter, resulting in incomplete automatic cleaning of the suspended matter, which is inconvenient to use. Furthermore, the scrapers cannot remove the waste residue attached to them, causing the waste residue on the scrapers to fall back into the sewage, making the product inconvenient to use.

[0006] To solve the above-mentioned technical problems, the present invention provides a liquid level regulating device for a flotation tank, comprising a flotation tank, a chute box fixedly connected to the inner wall of the flotation tank, a water level regulating component disposed inside the chute box, an air supply pipe fixedly connected to the inner wall of the flotation tank near the chute box, a plurality of one-way valves fixedly connected through the top of the air supply pipe to facilitate blowing suspended matter at the bottom to the top, a vertical plate fixedly connected to the top of the flotation tank, a driven wheel and a driving wheel rotatably connected to one side of the surface of the vertical plate, a conveyor belt jointly sleeved and connected to the outside of the driven wheel and the driving wheel, and a plurality of scrapers fixedly connected to the surface of the conveyor belt to clean suspended matter on the water surface;

[0007] A U-shaped mounting plate is fixedly connected to one side of the surface of the flotation tank. The top of the U-shaped mounting plate has a mounting groove, and a cleaning scraper is slidably connected inside the mounting groove. Multiple springs are fixedly connected between the mounting groove and the cleaning scraper to facilitate the cleaning of suspended matter on the scraper.

[0008] Preferably, the water level adjustment component includes a slider, the surface of which is slidably connected to the inner wall of the trough box, a float is fixedly connected to one end of the slider, a connecting rod is fixedly connected to one side of the slider surface, a telescopic hose is fixedly connected through the inner wall of the flotation tank, an installation plate is fixedly connected to the top of the telescopic hose, and one side of the installation plate is fixedly connected to one side of the connecting rod surface, thereby adjusting the water level and making cleaning more convenient.

[0009] Preferably, a limiting screw is threaded through the top of the chute box, and the limiting screw is located at the top of the slider to adjust the water level.

[0010] Preferably, a horizontal plate is fixedly connected to the side of the flotation tank away from the U-shaped mounting plate, and an air pump is fixedly connected to the top of the horizontal plate. One end of the air supply pipe extends through to the outside of the flotation tank and is fixedly connected to the output end of the air pump, so as to continuously supply air into the interior of the flotation tank.

[0011] Preferably, a slag discharge port is provided on one side of the surface of the flotation tank, a slag discharge slide is fixedly connected to the inner wall of the slag discharge port, and a baffle is fixedly connected to the inner wall of the flotation tank near the slag discharge port to facilitate the cleaning of suspended solids.

[0012] Preferably, a motor is fixedly connected to the side of the vertical plate away from the driven wheel, and the output end of the motor extends through to one side of the vertical plate and is fixedly connected to one end of the driving wheel, thereby automating the cleaning process.

[0013] Preferably, the surface of the flotation tank away from the U-shaped mounting plate is fixedly connected with an inlet pipe and a second outlet pipe with a valve, which facilitates the replenishment and discharge of water from the flotation tank.

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

[0015] 1. This utility model, by setting up structures such as an air pump, an air supply pipe, and a one-way valve, uses the air pump to discharge external air into the air supply pipe, and combines multiple one-way valves to discharge air, thereby achieving the effect of uniform output to the bottom of the flotation tank, avoiding the inability to completely automatically clean due to different depths of suspended matter, and making it more convenient to use.

[0016] 2. This utility model, by setting up a cleaning scraper, spring and scraper, uses the scraper to clean the suspended matter on the water surface, and the spring pushes the cleaning scraper to contact the scraper, thereby achieving the function of the cleaning scraper scraping off the waste residue attached to the outer surface of the scraper, preventing the waste residue on the scraper from falling back into the sewage, effectively improving the operation efficiency and reducing the operation difficulty. Attached Figure Description

[0017] Figure 1 This is a perspective view of a liquid level regulating device for an air flotation tank according to the present invention;

[0018] Figure 2 This is a schematic diagram of the drive wheel and conveyor belt of a liquid level regulating device for an air flotation tank according to the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of an air flotation tank, which is a liquid level regulating device for an air flotation tank according to the present invention.

[0020] Figure 4 This utility model Figure 2 A magnified view of A in the middle.

[0021] In the diagram: 1. Flotation tank; 2. Slide box; 3. Limiting screw; 4. Inlet pipe; 5. Sliding block; 6. Float; 7. Connecting rod; 8. Mounting plate; 9. Telescopic hose; 10. Drain pipe; 11. Air pump; 12. Air supply pipe; 13. One-way valve; 14. Baffle; 15. Slag discharge port; 16. Slag discharge chute; 17. U-shaped mounting plate; 18. Mounting groove; 19. Cleaning scraper; 20. Spring; 21. Driven wheel; 22. Drive wheel; 23. Conveyor belt; 24. Scraper; 25. Vertical plate; 26. Motor; 27. Horizontal plate. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0023] Please see Figure 1 , Figure 3 and Figure 4 A liquid level regulating device for an air flotation tank includes an air flotation tank 1. A chute box 2 is fixedly connected to the inner wall of the air flotation tank 1. A water level regulating component is installed inside the chute box 2. An air supply pipe 12 is fixedly connected to the inner wall of the air flotation tank 1 near the chute box 2. Multiple one-way valves 13 are fixedly connected through the top of the air supply pipe 12 to facilitate blowing suspended matter at the bottom to the top. A vertical plate 25 is fixedly connected to the top of the air flotation tank 1. A driven wheel 21 and a driving wheel 22 are rotatably connected to one side of the surface of the vertical plate 25. A conveyor belt 23 is sleeved and connected to the outside of the driven wheel 21 and the driving wheel 22. Multiple scrapers 24 are fixedly connected to the surface of the conveyor belt 23 to clean suspended matter on the water surface.

[0024] A U-shaped mounting plate 17 is fixedly connected to one side of the surface of the flotation tank 1. The top of the U-shaped mounting plate 17 is provided with a mounting groove 18. A cleaning scraper 19 is slidably connected inside the mounting groove 18. Multiple springs 20 are fixedly connected between the mounting groove 18 and the cleaning scraper 19 to facilitate the cleaning of suspended matter on the scraper 24.

[0025] like Figure 1 - Figure 3 As shown, a horizontal plate 27 is fixedly connected to the side of the flotation tank 1 away from the U-shaped mounting plate 17. An air pump 11 is fixedly connected to the top of the horizontal plate 27. One end of the air supply pipe 12 extends through to the outside of the flotation tank 1 and is fixedly connected to the output end of the air pump 11, which can continuously supply air into the interior of the flotation tank 1. A motor 26 is fixedly connected to the side of the vertical plate 25 away from the driven wheel 21. The output end of the motor 26 extends through to the side of the vertical plate 25 and is fixedly connected to one end of the drive wheel 22, which automates the cleaning process. The water level adjustment component includes a slider 5. The surface of the slider 5 is slidably connected to the inner wall of the trough box 2. A float ball 6 is fixedly connected to one end of the slider 5. A connecting rod 7 is fixedly connected to one side of the surface of the slider 5. The inner wall of the flotation tank 1 extends through to the bottom of the vertical plate 25. A flexible hose 9 is fixedly connected to the top of the flexible hose 9, and an installation plate 8 is fixedly connected to the top of the flexible hose 9. One side of the surface of the installation plate 8 is fixedly connected to one side of the surface of the connecting rod 7 to adjust the water level and make cleaning more convenient. A slag discharge port 15 is opened on one side of the surface of the flotation tank 1. A slag discharge slide 16 is fixedly connected to the inner wall of the slag discharge port 15. A baffle 14 is fixedly connected to the inner wall of the flotation tank 1 near the slag discharge port 15 to facilitate the cleaning of suspended solids. A water inlet pipe 4 with a valve and a second drain pipe 10 are fixedly connected through the surface of the flotation tank 1 away from the U-shaped installation plate 17 to facilitate the replenishment and discharge of water from the flotation tank 1. A limit screw 3 is threadedly connected through the top of the slide box 2. The limit screw 3 is located on the top of the slider 5 to adjust the water level.

[0026] In use, the limiting screw 3 is turned, causing the limiting slider 5 to rise and fall to a predetermined position. Wastewater to be treated is then injected into the flotation tank 1 via the inlet pipe 4. The wastewater causes the float 6 to rise, which in turn causes the slider 5 to rise in the chute box 2 to the bottom of the limiting slider 5. Simultaneously, the slider 5 causes the connecting rod 7 to rise and fall, which in turn causes the mounting plate 8 to rise and fall. The mounting plate 8 causes the telescopic hose 9 to extend and retract, allowing water at a higher level to be discharged from the flotation tank 1 through the telescopic hose 9. After the water level is adjusted, the air pump 11 is started, injecting air into the air supply pipe 12. Finally, through the one-way valve 13, the air generates bubbles in the wastewater, converting hydrophilic particles into hydrophobic particles. Aqueous substances adhere to air bubbles and float to the surface with them, thus suspending the debris on the water's surface. This facilitates blowing the debris onto the surface. Simultaneously, motor 26 is activated, driving the drive wheel 22 to rotate. The drive wheel 22 then drives the driven wheel 21 and the conveyor belt 23 to rotate. The conveyor belt 23 drives the scraper 24 to rotate, carrying the debris in the water into the baffle 14. The scraper 24 pushes the cleaning scraper 19, which in turn pushes the spring 20. As the scraper 24 moves upward, the cleaning scraper 19, rebounding from the spring 20, scrapes the debris on the scraper 24. Finally, the debris is cleared through the slag discharge port 15 and the slag discharge chute 16, making the process more convenient.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A liquid level regulating device for a flotation tank, comprising a flotation tank (1), characterized in that: The inner wall of the flotation tank (1) is fixedly connected to a chute box (2), and a water level regulating component is provided inside the chute box (2). An air supply pipe (12) is fixedly connected to the inner wall of the flotation tank (1) near the chute box (2). Multiple one-way valves (13) are fixedly connected through the top of the air supply pipe (12). A vertical plate (25) is fixedly connected to the top of the flotation tank (1). A driven wheel (21) and a driving wheel (22) are rotatably connected to one side of the surface of the vertical plate (25). A conveyor belt (23) is sleeved and connected to the outside of the driven wheel (21) and the driving wheel (22). Multiple scrapers (24) are fixedly connected to the surface of the conveyor belt (23). A U-shaped mounting plate (17) is fixedly connected to one side of the surface of the flotation tank (1). An installation groove (18) is provided on the top of the U-shaped mounting plate (17). A cleaning scraper (19) is slidably connected inside the installation groove (18). Multiple springs (20) are fixedly connected between the installation groove (18) and the cleaning scraper (19).

2. The liquid level regulating device for an air flotation tank according to claim 1, characterized in that: The water level regulating component includes a slider (5), the surface of the slider (5) is slidably connected to the inner wall of the trough box (2), a float (6) is fixedly connected to one end of the slider (5), a connecting rod (7) is fixedly connected to one side of the surface of the slider (5), a telescopic hose (9) is fixedly connected through the inner wall of the air flotation tank (1), an installation plate (8) is fixedly connected to the top of the telescopic hose (9), and one side of the surface of the installation plate (8) is fixedly connected to one side of the surface of the connecting rod (7).

3. The liquid level regulating device for an air flotation tank according to claim 2, characterized in that: The top of the slide box (2) is threadedly connected to a limiting screw (3), which is located at the top of the slider (5).

4. The liquid level regulating device for an air flotation tank according to claim 1, characterized in that: A horizontal plate (27) is fixedly connected to the side of the flotation tank (1) away from the U-shaped mounting plate (17). An air pump (11) is fixedly connected to the top of the horizontal plate (27). One end of the air supply pipe (12) extends through to the outside of the flotation tank (1) and is fixedly connected to the output end of the air pump (11).

5. A liquid level regulating device for an air flotation tank according to claim 1, characterized in that: The flotation tank (1) has a slag discharge port (15) on one side of its surface. A slag discharge slide (16) is fixedly connected to the inner wall of the slag discharge port (15). A baffle (14) is fixedly connected to the inner wall of the flotation tank (1) near the slag discharge port (15).

6. A liquid level regulating device for an air flotation tank according to claim 1, characterized in that: A motor (26) is fixedly connected to the side of the vertical plate (25) away from the driven wheel (21), and the output end of the motor (26) extends through to one side of the surface of the vertical plate (25) and is fixedly connected to one end of the driving wheel (22).

7. A liquid level regulating device for an air flotation tank according to claim 4, characterized in that: The air flotation tank (1) has a water inlet pipe (4) with a valve and a second drain pipe (10) fixedly connected through it on the side of the surface away from the U-shaped mounting plate (17).

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