Accurate dosing device for sewage treatment

Abstract

The utility model discloses an accurate dosing device for sewage treatment, which relates to the technical field of sewage treatment and comprises a frame, a stirring tank is connected inside the frame, and a circulating pipe is connected to the upper end of the stirring tank in a penetrating manner. Gas can push the rotating plates, the rotating plates drive the permeable plates to rotate, the gas continuously enters the middles of the different rotating plates, and the gas is discharged after the gas holes in the surfaces of the permeable plates are aligned with the gas holes in the surfaces of the gas outlet plates; as the gas enters the solution and floats upwards in the form of small bubbles, when the small bubbles are broken, the solution can be pushed to move mutually, the stirring effect is improved, meanwhile, the bubbles can enter the sedimentation tank along with the solution, the mixing speed of liquid medicine and sewage is increased, and sedimentation of the sewage is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a precise chemical dosing device for sewage treatment. Background Technique

[0002] Sewage treatment agents are additives required in sewage treatment. For example, polyacrylamide, cationic polyacrylamide, anionic polyacrylamide, non-ionic, amphoteric ion polyacrylamide, polyaluminum chloride, etc. can all be used as sewage treatment agents in different applications.

[0003] The existing sewage treatment adds treatment agents to the sewage to accelerate the precipitation or fermentation of the sewage. However, since the treatment agents need to be mixed and stirred before addition, the dosing speed is affected. At the same time, the treatment agents will precipitate after being placed for a long time, resulting in clogging of the water pump. Therefore, a precise chemical dosing device for sewage treatment is proposed to solve the above problems. Content of the Utility Model

[0004] The utility model provides a precise chemical dosing device for sewage treatment, which solves the above technical problems.

[0005] To solve the above technical problems, a precise chemical dosing device for sewage treatment provided by the utility model includes a frame. A mixing tank is connected inside the frame. The upper end of the mixing tank is connected through a circulation pipe. The other end of the circulation pipe relative to the mixing tank is connected with a mixing solenoid valve. The other end of the mixing solenoid valve relative to the circulation pipe is connected with a discharge pipe. The other end of the discharge pipe relative to the mixing solenoid valve is connected with a water pump. A water inlet pipe is connected to the surface of the water pump. The other end of the water inlet pipe relative to the water pump is connected to the mixing tank. One end of the frame is fixed with a mounting bracket. An air pump is fixed on the surface of the mounting bracket. An air supply pipe is connected to the surface of the air pump. The air supply pipe is communicated with the mixing tank.

[0006] Preferably, a dosing solenoid valve is connected to the surface of the discharge pipe through a pipeline. A connecting pipe is connected to the surface of the dosing solenoid valve. The connecting pipe is connected to the sedimentation tank.

[0007] Preferably, a dosing port is fixed on the surface of the mixing tank. A sealing cover is rotatably connected to the upper end of the dosing port through a thread.

[0008] Preferably, a stirring rod is rotatably connected inside the mixing tank. One end of the stirring rod is drivingly connected to a stirring motor. The stirring motor is fixed on the surface of the mixing tank.

[0009] Preferably, an air storage tank is connected to the surface of the air supply pipe. A middle column is rotatably connected inside the air storage tank. A rotating plate is fixed on the surface of the middle column.

[0010] Preferably, a breathable plate is fixed to the upper end of the rotating plate, and an air outlet plate is fixed to the upper end of the air storage box. The surfaces of the air outlet plate and the breathable plate are both provided with air holes, and the size of the air holes on the surface of the air outlet plate is proportional to the distance between the air holes and the air supply pipe.

[0011] Compared with the related art, the precise dosing device for sewage treatment provided by the utility model has the following beneficial effects:

[0012] The utility model delivers air to the inside of an air storage box through an air pump, and the gas enters the inside of the air storage box. Due to the flow direction of the gas, the gas pushes the rotating plate, and the rotating plate drives the air permeable plate to rotate. The gas continuously enters the middle of different rotating plates, and after the air holes on the surface of the air permeable plate are aligned with the air holes on the surface of the air outlet plate, the gas is discharged. Since the sizes of the air holes at various positions on the surface of the air outlet plate are different, the amount of gas in various parts of the solution is guaranteed to be the same. Since the gas enters the solution and floats in the form of small bubbles, the small bubbles can push the solution to move relative to each other when they burst, thereby increasing the stirring effect. At the same time, the bubbles can follow the solution into the sedimentation tank, thereby increasing the mixing speed of the medicine solution and the sewage, and accelerating the sedimentation of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main structure diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the stirring tank in the utility model;

[0015] Figure 3 It is a cutaway structural diagram of the stirring tank in the utility model;

[0016] Figure 4 It is a cutaway structural diagram of the gas storage box in the utility model.

[0017] Numbers in the figure: 1. stirring motor; 2. dosing port; 3. stirring tank; 4. connecting pipe; 5. dosing solenoid valve; 6. discharge pipe; 7. water pump; 8. mounting frame; 9. air pump; 10. water inlet pipe; 11. air supply pipe; 12. stirring solenoid valve; 13. circulation pipe; 14. frame; 15. stirring rod; 16. air outlet plate; 17. air storage box; 18. breathable plate; 19. rotating plate; 20. center column. DETAILED DESCRIPTION

[0018] Example, by Figures 1-4It is given that the utility model includes a precision dosing device for sewage treatment, including a frame 14, the interior of the frame 14 is connected to a stirring tank 3, the upper end of the stirring tank 3 is penetrated by a circulation pipe 13, the other end of the circulation pipe 13 relative to the stirring tank 3 is connected to a stirring solenoid valve 12, the other end of the stirring solenoid valve 12 relative to the circulation pipe 13 is connected to a discharge pipe 6, the other end of the discharge pipe 6 relative to the stirring solenoid valve 12 is connected to a water pump 7, the surface of the water pump 7 is connected to a water inlet pipe 10, the other end of the water inlet pipe 10 relative to the water pump 7 is connected to the stirring tank 3, one end of the frame 14 is fixed with a mounting frame 8, the surface of the mounting frame 8 is fixed with an air pump 9, the surface of the air pump 9 is connected with an air supply pipe 11, and the air supply pipe 11 is connected to the stirring tank 3.

[0019] The surface of the discharge pipe 6 is connected to a dosing solenoid valve 5 through a pipeline, and the surface of the dosing solenoid valve 5 is connected to a connecting pipe 4, and the connecting pipe 4 is connected to the sedimentation tank.

[0020] A dosing port 2 is fixed on the surface of the stirring tank 3, and a sealing cover is rotatably connected to the upper end of the dosing port 2 through a thread.

[0021] A stirring rod 15 is rotatably connected inside the stirring tank 3 , and one end of the stirring rod 15 is drivingly connected to a stirring motor 1 , which is fixed on the surface of the stirring tank 3 .

[0022] The surface of the air supply pipe 11 is connected to an air storage box 17 , the interior of the air storage box 17 is rotatably connected to a center column 20 , and a rotating plate 19 is fixed to the surface of the center column 20 .

[0023] A breathable plate 18 is fixed to the upper end of the rotating plate 19, and an air outlet plate 16 is fixed to the upper end of the air storage box 17. The surfaces of the air outlet plate 16 and the breathable plate 18 are both provided with air holes, and the size of the air holes on the surface of the air outlet plate 16 is proportional to the distance between the air holes and the air supply pipe 11.

[0024] The medicine powder to be added is poured into the medicine adding port 2. There is a solvent in the stirring tank 3. The sealing cover is rotated to close the medicine adding port 2, and the stirring motor 1 is started. The stirring motor 1 drives the stirring rod 15 to rotate. The rotating stirring rod 15 stirs the medicine powder and the solvent together. The air pump 9 is started. The air pump 9 introduces the gas into the air supply pipe 11. The gas enters the air storage box 17 through the air supply pipe 11. Due to the flow direction of the gas, the gas will push the rotating plate 19, and the rotating plate 19 drives the air permeable plate 18 to rotate. The gas continuously enters the middle of different rotating plates 19. After the air holes on the surface of the air permeable plate 18 are aligned with the air holes on the surface of the air outlet plate 16, the gas is discharged. Since the air holes at various positions on the surface of the air outlet plate 16 are of different sizes, the amount of gas at various locations of the solution is guaranteed to be the same. During the stirring process, the water pump 7 and the stirring solenoid valve 12 are started, so that the medicine liquid can circulate. After the stirring is completed, the stirring solenoid valve 12 is closed and the medicine adding solenoid valve 5 is opened. The water pump 7 is started, and the medicine liquid enters the sedimentation tank along the connecting pipe 4.

Claims

1. A precise dosing device for sewage treatment, comprising a frame (14), characterized in that: The frame (14) is internally connected to a stirring tank (3), a circulation pipe (13) is passed through the upper end of the stirring tank (3), the other end of the circulation pipe (13) relative to the stirring tank (3) is connected to a stirring solenoid valve (12), the other end of the stirring solenoid valve (12) relative to the circulation pipe (13) is connected to a discharge pipe (6), the other end of the discharge pipe (6) relative to the stirring solenoid valve (12) is connected to a water pump (7), the surface of the water pump (7) is connected to a water inlet pipe (10), the other end of the water inlet pipe (10) relative to the water pump (7) is connected to the stirring tank (3), one end of the frame (14) is fixed with a mounting frame (8), the surface of the mounting frame (8) is fixed with an air pump (9), the surface of the air pump (9) is connected with an air supply pipe (11), and the air supply pipe (11) is communicated with the stirring tank (3).

2. A precise dosing device for sewage treatment according to claim 1, characterized in that: The surface of the discharge pipe (6) is connected to a dosing solenoid valve (5) via a pipeline, and the surface of the dosing solenoid valve (5) is connected to a connecting pipe (4), and the connecting pipe (4) is connected to a sedimentation tank.

3. A precise dosing device for sewage treatment according to claim 1, characterized in that: A drug adding port (2) is fixed on the surface of the stirring tank (3), and a sealing cover is rotatably connected to the upper end of the drug adding port (2) via a thread.

4. A precise dosing device for sewage treatment according to claim 1, characterized in that: The interior of the stirring tank (3) is rotatably connected to a stirring rod (15), one end of the stirring rod (15) is drivingly connected to a stirring motor (1), and the stirring motor (1) is fixed on the surface of the stirring tank (3).

5. A precise dosing device for sewage treatment according to claim 1, characterized in that: The surface of the air supply pipe (11) is connected to an air storage box (17), the interior of the air storage box (17) is rotatably connected to a center column (20), and a rotating plate (19) is fixed to the surface of the center column (20).

6. A precise dosing device for sewage treatment according to claim 5, characterized in that: A permeable plate (18) is fixed to the upper end of the rotating plate (19), and an air outlet plate (16) is fixed to the upper end of the air storage box (17). Air holes are arranged on the surfaces of the air outlet plate (16) and the permeable plate (18), and the size of the air holes on the surface of the air outlet plate (16) is proportional to the distance between the air holes and the air supply pipe (11).

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