Coagulating sedimentation tank

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a coagulative precipitation tank which comprises a flocculation tank, a precipitation tank is fixedly connected to the bottom of the flocculation tank, a rotating shaft is rotatably connected to the top end in the flocculation tank, a plurality of stirring rods are fixedly connected to the inner sides of two square frames, and the stirring rods are fixedly connected to the bottom of the flocculation tank. When sludge at the bottom end of the interior of the sedimentation tank needs to be treated, firstly, a waterproof air cylinder is started to drive a positioning block to descend, so that the positioning block extends into a positioning groove, and connection of a rotating shaft and the rotating column is completed; when the motor is started, the rotating column can be synchronously driven to rotate, so that the two scrapers are driven to rotate, sludge at the bottom is scraped off, the situation that sludge adheres to the interior of the sedimentation tank and is inconvenient to remove is avoided, use is more flexible, then the sludge pump is started, loose sludge is discharged out of the sedimentation tank, treatment is convenient, meanwhile, the sedimentation tank is fixed to the top of the sedimentation tank, and the overall dust collection performance is high. The occupied area is small.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a coagulation sedimentation tank. Background Art

[0002] A coagulation sedimentation tank is a type of sedimentation tank used in water supply and drainage. The coagulation process is the most basic and extremely important treatment process in the treatment of industrial water and domestic sewage. By adding some chemicals (usually called coagulants and coagulant aids) to the water, particles that are difficult to precipitate in the water can aggregate with each other to form colloids, which then combine with impurities in the water to form larger flocs. Flocs have strong adsorption capacity and can not only adsorb suspended matter, but also some bacteria and soluble substances. Through adsorption, the flocs increase in volume and sink;

[0003] When sludge is precipitated in the existing sewage sedimentation tank, the sludge accumulates on the inner wall of the sedimentation tank and is difficult to drain. If this continues for a long time, the sludge outlet is likely to be blocked. At the same time, after the flocculant is added, the sewage and flocculant are likely to be insufficiently stirred, and the reaction speed is slow. Moreover, the existing flocculation tank and sedimentation tank are usually set up separately and connected by pipes, which have low integration, occupy a large area, and are inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a coagulation sedimentation tank, which has the characteristics of sufficient mixing of sewage and flocculant, high reaction efficiency, high integration and convenient sludge discharge.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coagulation sedimentation tank, comprising a flocculation tank, wherein the bottom of the flocculation tank is fixedly connected to the sedimentation tank, the inner top end of the flocculation tank is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to two symmetrically arranged square frames, the inner sides of the two square frames are fixedly connected to a plurality of stirring rods, the inner top end of the sedimentation tank is rotatably connected to a rotating column, two symmetrically arranged scrapers are fixedly connected to the lower side of the outer wall of the rotating column, the top end of the rotating column extends to the interior of the flocculation tank and is fixedly connected to a connector, the upper end surface of the connector is provided with a positioning groove, the inner bottom end of the rotating shaft is provided with a waterproof cylinder, and the output end of the waterproof cylinder is fixedly connected to a positioning block matching the positioning groove;

[0006] A discharge box is fixedly connected to one side of the top of the flocculation tank. The bottom end of the discharge box is connected to a discharge pipe extending into the interior of the flocculation tank. An electromagnetic valve is provided on the outer wall of the discharge pipe.

[0007] In order to facilitate water conduction into the sedimentation tank, as a preferred coagulation sedimentation tank of the present invention, a water guide pipe is connected between the flocculation tank and the upper left side of the outer wall of the sedimentation tank.

[0008] In order to facilitate water intake and drainage, a coagulation sedimentation tank is preferably used in the present invention, in which a water inlet is fixedly connected to the left side of the top of the flocculation tank, a drain pipe extending to the bottom of the interior of the sedimentation tank is fixedly connected to the right side wall of the sedimentation tank, and a drainage pump is provided on the outer wall of the drain pipe.

[0009] In order to facilitate the discharge of settled sludge, as a preferred coagulation sedimentation tank of the present invention, a sludge pump is provided below the outer wall of the sedimentation tank, and the input end of the sludge pump extends to the interior of the sedimentation tank.

[0010] In order to drive the rotating shaft to rotate, as a preferred coagulation sedimentation tank of the present invention, a motor is installed on the top of the sedimentation tank, and the output end of the motor is fixedly connected to the rotating shaft.

[0011] In order to be able to drive the rotating column to rotate by the rotating shaft, as a preferred coagulation sedimentation tank of the present invention, the cross-section of the positioning block is rectangular.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The sewage enters the flocculation tank through the water inlet. By opening the solenoid valve, the flocculant enters the flocculation tank through the discharge pipe, realizing automatic addition of flocculant, saving manpower, starting the motor to drive the shaft to rotate, and the shaft drives the square frame and the stirring rod to rotate, thereby stirring the flocculant and sewage, making the flocculant and sewage fully mixed, and improving the flocculation efficiency. When the sewage inside the flocculation tank exceeds the water pipe, the sewage overflows through the water pipe to the inside of the sedimentation tank, thereby causing the sewage to settle inside the sedimentation tank. After settling for a certain period of time, the drainage pump is started to The sewage after sedimentation is pumped out, and when the sludge at the bottom of the sedimentation tank needs to be processed, first start the waterproof cylinder to drive the positioning block down, so that the positioning block extends to the inside of the positioning groove, completing the connection between the rotating shaft and the rotating column. When the motor is started, the rotating column can be driven to rotate synchronously, thereby driving the two scrapers to rotate, scraping off the bottom sludge to avoid sticking to the inside of the sedimentation tank. The mud removal is inconvenient and the use is more flexible. Then start the sludge pump to discharge the loose sludge from the sedimentation tank, which is convenient for processing. At the same time, the flocculation tank is fixed on the top of the sedimentation tank, with high overall dust collection and small footprint. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall internal structure diagram of the utility model;

[0015] Figure 2 This is a top view of the connector structure of the utility model;

[0016] Figure 3 This is the overall external structure diagram of the utility model.

[0017] In the figure: 1. Flocculation tank; 2. Sedimentation tank; 3. Rotating shaft; 4. Square frame; 5. Stirring rod; 6. Rotating column; 7. Connector; 8. Positioning groove; 9. Waterproof cylinder; 10. Positioning block; 11. Discharge box; 12. Discharge pipe; 13. Solenoid valve; 14. Scraper; 15. Water guide pipe; 16. Drain pipe; 17. Drain pump; 18. Sludge pump; 19. Motor; 20. Water inlet. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3 A coagulation sedimentation tank comprises a flocculation tank 1, the bottom of the flocculation tank 1 is fixedly connected to the sedimentation tank 2, the inner top end of the flocculation tank 1 is rotatably connected to a rotating shaft 3, the outer wall of the rotating shaft 3 is fixedly connected to two symmetrically arranged square frames 4, the inner sides of the two square frames 4 are fixedly connected to a plurality of stirring rods 5, the inner top end of the sedimentation tank 2 is rotatably connected to a rotating column 6, the lower part of the outer wall of the rotating column 6 is fixedly connected to two symmetrically arranged scrapers 14, the top end of the rotating column 6 extends to the interior of the flocculation tank 1 and is fixedly connected to a connector 7, the upper end surface of the connector 7 is provided with a positioning groove 8, the inner bottom end of the rotating shaft 3 is provided with a waterproof cylinder 9, and the output end of the waterproof cylinder 9 is fixedly connected to a positioning block 10 matching the positioning groove 8;

[0019] A discharge box 11 is fixedly connected to one side of the top of the flocculation tank 1 . The bottom end of the discharge box 11 is connected to a discharge pipe 12 extending into the interior of the flocculation tank 1 . An electromagnetic valve 13 is provided on the outer wall of the discharge pipe 12 .

[0020] In this embodiment, sewage enters the flocculation tank 1 through the water inlet 20, and by opening the solenoid valve 13, the flocculant enters the flocculation tank 1 through the feed pipe 12, thereby automatically adding the flocculant and saving manpower. Subsequently, the motor 19 is started to drive the rotating shaft 3 to rotate, and the rotating shaft 3 drives the square frame 4 and the stirring rod 5 to rotate, thereby stirring the flocculant and sewage, so that the flocculant and sewage are fully mixed, thereby improving the flocculation efficiency. When the sewage inside the flocculation tank 1 exceeds the water pipe 15, the sewage overflows through the water pipe 15 to the inside of the sedimentation tank 2, thereby causing the sewage to precipitate inside the sedimentation tank 2. After settling for a certain period of time, the discharge is started. The water pump 17 pumps out the precipitated sewage. When the sludge at the bottom of the sedimentation tank 2 needs to be processed, the waterproof cylinder 9 is first started to drive the positioning block 10 to descend, so that the positioning block 10 extends to the inside of the positioning groove 8, completing the connection between the rotating shaft 3 and the rotating column 6. When the motor 19 is started, the rotating column 6 can be driven to rotate synchronously, thereby driving the two scrapers 14 to rotate, scraping off the bottom sludge to avoid sticking to the inside of the sedimentation tank 2. The mud removal is inconvenient and the use is more flexible. Then the sludge pump 18 is started to discharge the loose sludge from the sedimentation tank 2, which is convenient for processing. At the same time, the flocculation tank 1 is fixed on the top of the sedimentation tank 2, with high overall dust collection and small footprint.

[0021] As a technical optimization solution of the present invention, a water pipe 15 is connected between the upper left side of the outer wall of the flocculation tank 1 and the sedimentation tank 2.

[0022] In this embodiment, a water pipe 15 is connected between the upper left sides of the outer walls of the flocculation tank 1 and the sedimentation tank 2 to facilitate the introduction of sewage in the flocculation tank 1 into the sedimentation tank 2.

[0023] As a technical optimization solution of the present invention, a water inlet 20 is fixedly connected to the top left side of the flocculation tank 1, and a drainage pipe 16 extending to the bottom of the interior of the sedimentation tank 2 is fixedly connected to the right side wall of the sedimentation tank 2, and a drainage pump 17 is provided on the outer wall of the drainage pipe 16.

[0024] In this embodiment, sewage is introduced into the flocculation tank 1 through the water inlet 20 , and the precipitated sewage is pumped out from the drainage pipe 16 by activating the drainage pump 17 .

[0025] As a technical optimization solution of the present invention, a sludge pump 18 is provided below the outer wall of the sedimentation tank 2 , and the input end of the sludge pump 18 extends to the interior of the sedimentation tank 2 .

[0026] In this embodiment, the input end of the sludge pump 18 extends to the interior of the sedimentation tank 2. The sludge pump 18 is started to discharge the loose sludge from the sedimentation tank 2, which is convenient for processing.

[0027] As a technical optimization solution of the present invention, a motor 19 is installed on the top of the sedimentation tank 2 , and the output end of the motor 19 is fixedly connected to the rotating shaft 3 .

[0028] In this embodiment, the output end of the motor 19 is fixedly connected to the rotating shaft 3, thereby facilitating the driving of the rotating shaft 3 to rotate.

[0029] As a technical optimization solution of the present invention, the cross section of the positioning block 10 is rectangular.

[0030] In this embodiment, the cross section of the positioning block 10 is rectangular, so that when the positioning block 10 extends into the interior of the positioning groove 8 , it avoids circumferential rotation and can drive the rotating column 6 to rotate normally.

[0031] Working principle: Sewage enters the flocculation tank 1 through the water inlet 20. By opening the solenoid valve 13, the flocculant enters the flocculation tank 1 through the discharge pipe 12, realizing automatic addition of flocculant, saving manpower. Then the motor 19 is started to drive the rotating shaft 3 to rotate, and the rotating shaft 3 drives the square frame 4 and the stirring rod 5 to rotate, thereby stirring the flocculant and sewage, so that the flocculant and sewage are fully mixed, and the flocculation efficiency is improved. When the sewage inside the flocculation tank 1 exceeds the water pipe 15, the sewage overflows through the water pipe 15 to the inside of the sedimentation tank 2, so that the sewage is precipitated inside the sedimentation tank 2. After settling for a certain period of time, the drainage is started. The pump 17 extracts the precipitated sewage. When the sludge at the bottom of the sedimentation tank 2 needs to be processed, the waterproof cylinder 9 is first started to drive the positioning block 10 to descend, so that the positioning block 10 extends to the inside of the positioning groove 8, completing the connection between the rotating shaft 3 and the rotating column 6. When the motor 19 is started, the rotating column 6 can be driven to rotate synchronously, thereby driving the two scrapers 14 to rotate, scraping off the bottom sludge to avoid sticking to the inside of the sedimentation tank 2. The mud removal is inconvenient and the use is more flexible. Then the sludge pump 18 is started to discharge the loose sludge from the sedimentation tank 2, which is convenient for processing. At the same time, the flocculation tank 1 is fixed on the top of the sedimentation tank 2, with high overall dust collection and small footprint.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coagulation sedimentation tank, comprising a flocculation tank (1), characterized in that: The bottom of the flocculation tank (1) is fixedly connected to the sedimentation tank (2), the inner top of the flocculation tank (1) is rotatably connected to a rotating shaft (3), the outer wall of the rotating shaft (3) is fixedly connected to two symmetrically arranged square frames (4), the inner sides of the two square frames (4) are fixedly connected to a plurality of stirring rods (5), the inner top of the sedimentation tank (2) is rotatably connected to a rotating column (6), the lower part of the outer wall of the rotating column (6) is fixedly connected to two symmetrically arranged scrapers (14), the top of the rotating column (6) extends to the interior of the flocculation tank (1) and is fixedly connected to a connector (7), the upper end surface of the connector (7) is provided with a positioning groove (8), the inner bottom end of the rotating shaft (3) is provided with a waterproof cylinder (9), the output end of the waterproof cylinder (9) is fixedly connected to a positioning block (10) matching the positioning groove (8); A discharge box (11) is fixedly connected to one side of the top of the flocculation tank (1), and the bottom end of the discharge box (11) is connected to a discharge pipe (12) extending into the interior of the flocculation tank (1), and an electromagnetic valve (13) is provided on the outer wall of the discharge pipe (12).

2. A coagulation sedimentation tank according to claim 1, characterized in that: A water pipe (15) is connected between the upper left side of the outer wall of the flocculation tank (1) and the sedimentation tank (2).

3. A coagulation sedimentation tank according to claim 1, characterized in that: A water inlet (20) is fixedly connected to the left side of the top of the flocculation tank (1), and a drainage pipe (16) extending to the lower part of the interior of the sedimentation tank (2) is fixedly connected to the right side wall of the sedimentation tank (2), and a drainage pump (17) is provided on the outer wall of the drainage pipe (16).

4. A coagulation sedimentation tank according to claim 1, characterized in that: A sludge pump (18) is provided below the outer wall of the sedimentation tank (2), and an input end of the sludge pump (18) extends to the interior of the sedimentation tank (2).

5. A coagulation sedimentation tank according to claim 1, characterized in that: A motor (19) is installed on the top of the sedimentation tank (2), and the output end of the motor (19) is fixedly connected to the rotating shaft (3).

6. A coagulation sedimentation tank according to claim 1, characterized in that: The cross section of the positioning block (10) is rectangular.

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