Combined sludge tank discharging structure

Abstract

The utility model relates to the technical field of sludge treatment, and particularly discloses a combined sludge tank discharging structure which comprises a first concentration tank, a second concentration tank and a homogenizing tank, a liquid level meter is arranged in the first concentration tank, the homogenizing tank is positioned below the first concentration tank and the homogenizing tank, a discharging structure is arranged between the first concentration tank and the homogenizing tank, and the second concentration tank is positioned below the second concentration tank. The discharging structure comprises a first pipeline, the second pipeline is arranged between the second concentration tank and the homogenizing tank, the homogenizing tank is arranged below the first concentration tank and the homogenizing tank by arranging the discharging structure, and sewage can automatically flow into the homogenizing tank to complete conveying treatment by utilizing the height difference, so that certain energy-saving performance can be improved, and the energy-saving effect is improved. By arranging a first electric gate valve, a second electric gate valve, a third electric gate valve, a fourth electric gate valve, a fifth electric gate valve and a sixth electric gate valve, synchronous sludge discharge or independent control of the first pipeline and the second pipeline can be accurately controlled, and the flexibility of the discharging structure is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, and in particular to a combined sludge tank discharge structure. Background Technology

[0002] Thickening tanks and equalization tanks are two commonly used treatment units in wastewater treatment processes, and they are usually used in combination. Thickening tanks are mainly used for sludge thickening. Through gravity settling, solid particles in the sludge settle to the bottom of the tank, reducing the volume of sludge and facilitating subsequent sludge treatment and disposal. Equalization tanks are used to homogenize and regulate wastewater. They mainly make the water quality and quantity of wastewater uniform, reduce fluctuations in water quality and quantity, provide stable influent conditions for subsequent wastewater treatment processes, and ensure the stability of treatment results.

[0003] Traditionally, screw pumps are used to transport wastewater. However, industrial wastewater often contains hard, particulate impurities, and sometimes even metallic foreign objects. These hard impurities can easily damage the stator of the screw pump when they enter the pump chamber, reducing its service life. In addition, screw pumps consume a lot of electricity, which is not environmentally friendly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a combined sludge tank discharge structure, which solves the technical problems of high power consumption and easy damage to screw pumps in existing sludge discharge systems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A combined sludge tank discharge structure includes a first thickening tank, a second thickening tank, and a homogenizing tank. The first thickening tank is equipped with a level gauge, and the homogenizing tank is located below the first thickening tank and the homogenizing tank.

[0009] A discharge structure is provided between the first concentration tank and the homogenization tank;

[0010] The discharge structure includes a first pipe, a second pipe between the second thickening tank and the homogenizing tank, a first electric gate valve, a second electric gate valve and a third electric gate valve respectively inside the first pipe, the third electric gate valve is located at the end of the first pipe, the first pipe is connected to the homogenizing tank, and the second electric gate valve is located between the third electric gate valve and the first electric gate valve.

[0011] Preferably, the second pipeline is equipped with a fourth electric gate valve, a fifth electric gate valve, and a sixth electric gate valve, respectively. The sixth electric gate valve is located at the end of the second pipeline and is connected to the homogenization tank. The fifth electric gate valve is located between the sixth electric gate valve and the fourth electric gate valve. A third pipeline is provided between the first pipeline and the second pipeline. The third pipeline is equipped with a seventh electric gate valve and is located between the second electric gate valve and the third electric gate valve.

[0012] Preferably, screw pumps are symmetrically arranged on the side wall of the homogenizing tank, a fourth pipe is provided between the feed inlets of the two screw pumps, the fourth pipe is connected to the first pipe, the fourth pipe is located between the second electric gate valve and the third electric gate valve, an eighth electric gate valve is provided inside the fourth pipe, and a fifth pipe is provided between the discharge outlets of the two screw pumps, the fifth pipe is connected to the homogenizing tank.

[0013] (III) Beneficial Effects

[0014] Firstly, by setting up a discharge structure, the homogenizing tank is located below the first thickening tank and the homogenizing tank. Utilizing the height difference, wastewater can flow into the homogenizing tank by gravity for transportation and treatment, thereby improving energy efficiency. By setting up the first, second, third, fourth, fifth, and sixth electric gate valves, the synchronous sludge discharge of the first and second pipelines can be precisely controlled, or they can be controlled separately, greatly improving the flexibility of the discharge structure.

[0015] Secondly, by installing a screw pump, when blockages occur in the first and second pipes, workers can start the screw pump and open the eighth and seventh electric gate valves. This allows the fourth pipe to pump the sludge from the first pipe into the screw pump. Simultaneously, sludge from the third pipe will enter the first pipe through the third pipe and be pumped into the screw pump as well. The screw pump will then force the sludge into the homogenization tank for treatment through the fifth pipe. This avoids blockages, reduces the use of the screw pump, eliminates the need for emptying the tank and manually clearing the pipes, saves costs, and eliminates safety hazards. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the fifth electric gate valve of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the first concentration tank of this utility model.

[0021] Legend: 11. First thickening tank; 12. Second thickening tank; 13. Homogenizing tank; 14. First pipeline; 15. Second pipeline; 16. First electric gate valve; 17. Second electric gate valve; 18. Third electric gate valve; 19. Fourth electric gate valve; 21. Fifth electric gate valve; 22. Sixth electric gate valve; 23. Third pipeline; 24. Seventh electric gate valve; 25. Screw pump; 26. Fourth pipeline; 27. Eighth electric gate valve; 28. Fifth pipeline; 29. ​​Level gauge. Detailed Implementation

[0022] This application provides a combined sludge tank discharge structure, effectively solving the technical problems of high power consumption and easy damage to screw pumps in existing sludge discharge systems. By setting the discharge structure below the first thickening tank and the equalization tank, the height difference allows wastewater to flow into the equalization tank for treatment, thereby improving energy efficiency. The installation of first, second, third, fourth, fifth, and sixth electric gate valves allows for precise control of synchronous or individual sludge discharge from the first and second pipelines, greatly enhancing the flexibility of the discharge structure. Furthermore, by installing a screw pump, when blockages occur inside the first and second pipes, workers can activate the screw pump and open the eighth and seventh electric gate valves. This allows the fourth pipe to pump the sludge from the first pipe into the screw pump. Simultaneously, sludge from the third pipe will enter the first pipe through the third pipe and be pumped into the screw pump as well. The screw pump will then force the sludge into the homogenization tank for treatment through the fifth pipe. This avoids blockages, reduces the use of the screw pump, eliminates the need for emptying the tank and manually clearing the pipes, saves costs, and eliminates safety hazards.

[0023] Example

[0024] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problems of high power consumption in existing sludge discharge and easy damage to screw pumps. The overall idea is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a combined sludge tank discharge structure, including a first thickening tank 11, a second thickening tank 12, and a homogenizing tank 13. The first thickening tank 11 is equipped with a level gauge 29, and the homogenizing tank 13 is located below the first thickening tank 11 and the homogenizing tank 13.

[0026] A discharge structure is provided between the first thickening tank 11 and the homogenizing tank 13;

[0027] The discharge structure includes a first pipe 14, a second pipe 15 between the second thickening tank 12 and the homogenizing tank 13, a first electric gate valve 16, a second electric gate valve 17 and a third electric gate valve 18 respectively inside the first pipe 14, the third electric gate valve 18 is located at the end of the first pipe 14, the first pipe 14 is connected to the homogenizing tank 13, the second electric gate valve 17 is located between the third electric gate valve 18 and the first electric gate valve 16, a fourth electric gate valve 19, a fifth electric gate valve 21 and a sixth electric gate valve 22 respectively inside the second pipe 15, the sixth electric gate valve 22 is located at the end of the second pipe 15, the sixth electric gate valve 22 is connected to the homogenizing tank 13, and the fifth electric gate valve 21 is located between the sixth electric gate valve 22 and the fourth electric gate valve 19;

[0028] By setting up a discharge structure, the homogenizing tank 13 is located below the first thickening tank 11 and the homogenizing tank 13. Utilizing the height difference, sewage can flow into the homogenizing tank 13 by gravity for transportation and treatment, thereby improving energy efficiency. By setting up the first electric gate valve 16, the second electric gate valve 17, the third electric gate valve 18, the fourth electric gate valve 19, the fifth electric gate valve 21, and the sixth electric gate valve 22, the synchronous sludge discharge of the first pipeline 14 and the second pipeline 15 can be precisely controlled or controlled separately, greatly improving the flexibility of the discharge structure.

[0029] By installing a level gauge 29 inside the first concentration tank 11, an external PLC can control the opening and closing of the gate valve based on the level feedback, thus achieving automatic control.

[0030] A third pipe 23 is provided between the first pipe 14 and the second pipe 15. A seventh electric gate valve 24 is provided inside the third pipe 23. The third pipe 23 is located between the second electric gate valve 17 and the third electric gate valve 18. Screw pumps 25 are symmetrically provided on the side wall of the homogenizing tank 13. A fourth pipe 26 is provided between the feed inlets of the two screw pumps 25. The fourth pipe 26 is connected to the first pipe 14. The fourth pipe 26 is located between the second electric gate valve 17 and the third electric gate valve 18. An eighth electric gate valve 27 is provided inside the fourth pipe 26. A fifth pipe 28 is provided between the discharge outlets of the two screw pumps 25. The fifth pipe 28 is connected to the homogenizing tank 13.

[0031] By installing a screw pump 25, when blockages occur inside the first pipe 14 and the second pipe 15, the operator can turn on the screw pump 25 and open the eighth electric gate valve 27 and the seventh electric gate valve 24. This allows the fourth pipe 26 to pump the sludge inside the first pipe 14 into the screw pump 25. At the same time, the sludge inside the third pipe 23 will enter the first pipe 14 through the third pipe 23 and be pumped into the screw pump 25. Simultaneously, the screw pump 25 will force the sludge into the homogenization tank 13 through the fifth pipe 28 for treatment. This avoids the problem of blockage and reduces the use of the screw pump 25, avoiding the need for manual pipe clearing by emptying the tank, saving costs and eliminating safety hazards.

[0032] The electric gate valve, screw pump 25, and level gauge 29 of the discharge structure are all controlled and driven by an external PLC controller. At the same time, the PLC automatically controls the alternating discharge of sludge from the first thickening tank 11 and the second thickening tank 12, and interlocks the liquid level of the homogenizing tank 13 with the operation of each electric gate valve to achieve fully automatic sludge discharge. When this discharge structure is used in an outdoor location, a rain shelter should be installed to protect the electric gate valve and screw pump 25.

[0033] Working principle:

[0034] In the first step, during use, the staff can open the first electric gate valve 16, the second electric gate valve 17, the third electric gate valve 18 on the first pipe 14, and the fourth electric gate valve 19, the fifth electric gate valve 21, and the sixth electric gate valve 22 on the second pipe 15 to transport the sludge inside the first thickening tank 11 and the second thickening tank 12 through the first pipe 14 and the second pipe 15. At this time, since there is a height difference between the equalization tank 13 and the first thickening tank 11 and the second thickening tank 12, the sewage can be flowed into the equalization tank 13 by gravity to complete the treatment.

[0035] In the second step, when blockages occur inside the first pipe 14 and the second pipe 15, the operator can start the screw pump 25 and open the eighth electric gate valve 27 and the seventh electric gate valve 24, so that the fourth pipe 26 can pump the sludge inside the first pipe 14 into the screw pump 25. At the same time, the sludge inside the third pipe 23 will enter the first pipe 14 through the third pipe 23 and be pumped into the screw pump 25 together. Meanwhile, the screw pump 25 will force the sludge into the homogenizing tank 13 for treatment through the fifth pipe 28.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A combined sludge tank discharge structure, comprising a first thickening tank (11), a second thickening tank (12), and a homogenizing tank (13), wherein a level gauge (29) is provided inside the first thickening tank (11), and the homogenizing tank (13) is located below the first thickening tank (11) and the homogenizing tank (13), characterized in that... ； A discharge structure is provided between the first thickening tank (11) and the homogenizing tank (13); The discharge structure includes a first pipe (14), a second pipe (15) is provided between the second thickening tank (12) and the homogenizing tank (13), and a first electric gate valve (16), a second electric gate valve (17) and a third electric gate valve (18) are respectively provided inside the first pipe (14), and the third electric gate valve (18) is located at the end of the first pipe (14); The first pipe (14) is connected to the homogenizing tank (13), and the second electric gate valve (17) is located between the third electric gate valve (18) and the first electric gate valve (16).

2. The combined sludge tank discharge structure as described in claim 1, characterized in that, The second pipe (15) is equipped with a fourth electric gate valve (19), a fifth electric gate valve (21) and a sixth electric gate valve (22), respectively, and the sixth electric gate valve (22) is located at the end of the second pipe (15); The sixth electric gate valve (22) is connected to the homogenization tank (13), and the fifth electric gate valve (21) is located between the sixth electric gate valve (22) and the fourth electric gate valve (19).

3. The combined sludge tank discharge structure as described in claim 2, characterized in that, A third pipe (23) is provided between the first pipe (14) and the second pipe (15), and a seventh electric gate valve (24) is provided inside the third pipe (23); The third pipe (23) is located between the second electric gate valve (17) and the third electric gate valve (18).

4. The combined sludge tank discharge structure as described in claim 3, characterized in that, Screw pumps (25) are symmetrically arranged on the side wall of the homogenizing tank (13), and a fourth pipe (26) is provided between the feed inlets of the two screw pumps (25); The fourth pipe (26) is connected to the first pipe (14).

5. The combined sludge tank discharge structure as described in claim 4, characterized in that, The fourth pipe (26) is located between the second electric gate valve (17) and the third electric gate valve (18); The fourth pipe (26) is equipped with an eighth electric gate valve (27).

6. The combined sludge tank discharge structure as described in claim 5, characterized in that, A fifth pipe (28) is provided between the discharge ports of the two screw pumps (25); The fifth pipe (28) is connected to the homogenization tank (13).

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