Energy-saving sewage filtering system

Abstract

The utility model relates to an energy-saving sewage filtering system which comprises a liquid storage tank, a water inlet pump, a water outlet pump and a filtering tank, the water inlet pump is connected with the bottom of the filtering tank through a water inlet pipeline, the top of the filtering tank is connected with a water outlet pipe, and a water return pipe is connected between the water outlet pipe and the top of the liquid storage tank. The water inlet end of the water outlet pump is connected with a pipeline at the bottom of the side surface of the liquid storage tank; a quartz sand filter material is mounted in the filter tank; and a first electromagnetic valve for controlling the entering of treated sewage is connected to a pipeline for connecting the water inlet pump with the filter tank. According to the utility model, the quartz sand is adopted as a raw material of the filter material, the quartz sand filter material is manufactured by adding the curing adhesive and is arranged in the filter tank, and the sewage is filtered / concentrated, so that the cost of consumables can be saved during replacement, and the quartz sand with different specifications can be selected for manufacturing according to the requirement of filter precision, and the effect of recycling can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an energy-saving sewage filtering system. Background Art

[0002] When sewage treatment requires the use of filtration technology, various forms of filtration equipment will be involved. Most filtration equipment has disadvantages such as high cost, high maintenance cost, and short service life of filter materials.

[0003] In similar filtration devices that use quartz sand as filter material, padding must be installed at the bottom of the tank to prevent leakage of quartz sand during installation. The structure of coarse sand padding-fine sand-fine sand filtration is used in order. Since the sewage enters the filter tank from the bottom and exits from the top when the device is running, it is easy to wash away the fine filter sand at the bottom when the sewage enters the filter tank, resulting in reduced filtration effect. The same problem also exists during backwashing, which will cause secondary pollution to the quartz sand. Replacing the quartz sand requires a lot of work, and the replaced waste sand is solid waste and cannot be processed on site. Summary of the invention

[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides an energy-saving sewage filtering system which reduces the amount of filtering consumables and realizes recycling.

[0005] The utility model solves the technical problem by adopting the following technical solution: an energy-saving sewage filtering system, comprising a liquid storage tank, a water inlet pump, a water outlet pump and a filter tank, wherein the water inlet pump is connected to the bottom of the filter tank through a water inlet pipe, the top of the filter tank is connected with a water outlet pipe, a return pipe is connected between the water outlet pipe and the top of the liquid storage tank, the water outlet end of the water outlet pump is connected to the water outlet pipe through a drain pipe, and the water inlet end of the water outlet pump is connected to the bottom pipe on the side of the liquid storage tank;

[0006] The filter tank is installed with quartz sand filter material made by adding a curing adhesive, and a first solenoid valve for controlling the treated sewage to enter the filter tank is connected to a pipeline connecting the water inlet pump to the filter tank.

[0007] Furthermore, a second solenoid valve is provided at the end of the water outlet pipe, and a third solenoid valve is provided on the water return pipe.

[0008] Furthermore, a fourth solenoid valve is provided on the water outlet pipe between the return pipe and the drain pipe, and a fifth solenoid valve is connected to the water inlet pipe.

[0009] Furthermore, in order to monitor the internal pressure of the filter tank in real time, a pressure gauge displaying the internal pressure of the tank is provided on the filter tank.

[0010] The beneficial effects of the utility model are as follows: the utility model adopts quartz sand as the filter material raw material, adds a solidifying adhesive to make quartz sand filter material, and installs it in a filter tank to filter / concentrate sewage, which can save consumables costs during replacement, and can select quartz sand of different specifications for production according to the requirements of filtering accuracy, thereby achieving the effect of recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 This is a schematic diagram of the installation of quartz sand filter material in the filter tank.

[0014] In the figure: 1. liquid storage tank, 2. water inlet pump, 3. water outlet pump, 4. filter tank, 5. water inlet pipe, 6. water outlet pipe, 7. water return pipe, 8. drain pipe, 9. quartz sand filter material, 10. first solenoid valve, 11. second solenoid valve, 12. third solenoid valve, 13. fourth solenoid valve, 14. fifth solenoid valve. DETAILED DESCRIPTION

[0015] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0016] like Figure 1 , Figure 2 An energy-saving sewage filtration system shown in the figure comprises a liquid storage tank 1, an inlet pump 2, an outlet pump 3 and a filter tank 4, wherein an inlet pipe 5 is connected to the bottom of the filter tank 4, a first solenoid valve 10 is arranged between the inlet pipe 5 and the inlet pump 2, and the first solenoid valve 10 controls the inlet pump 2 to pump the sewage to be filtered into the filter tank 4; an outlet pipe 6 is connected to the top of the filter tank 4, a second solenoid valve 11 for controlling the discharge of filtered clean water is arranged at the end of the outlet pipe 6, a return pipe 7 is connected between the outlet pipe 6 and the top of the liquid storage tank 1, and a third solenoid valve 12 for controlling the filtered clean water to enter the liquid storage tank is arranged on the return pipe 7, the outlet end of the outlet pump 3 is connected to the outlet pipe 6 through a drain pipe 8, and the inlet end of the outlet pump 3 is connected to the bottom pipeline on the side of the liquid storage tank 1.

[0017] A quartz sand filter material 9 is installed at the upper position of the filter tank 4. The quartz sand filter material 9 is formed by curing quartz sand by adding a series of curing agents to form a long-term stable filter material. The sewage containing suspended matter is filtered by filtering. The quartz sand filter material 9 is arranged parallel to the radial direction of the filter tank 4, wherein a piece of quartz sand filter material 9 is arranged at the center of the filter tank 4, and six pieces of quartz sand filter material 9 are evenly distributed circumferentially around the quartz sand filter material 9 at the center; the filter tank 4 is provided with a pressure gauge displaying the pressure inside the tank, and the internal pressure of the filter tank 4 can be monitored in real time by the pressure gauge.

[0018] A fourth solenoid valve 13 is provided on the water outlet pipe 6 between the water return pipe 7 and the drain pipe 8 , and a fifth solenoid valve 14 is connected to the water inlet pipe 5 .

[0019] During filtration, the first solenoid valve 10, the second solenoid valve 11 and the third solenoid valve 12 are in the open state, the fourth solenoid valve 13 and the fifth solenoid valve 14 are in the closed state, the water inlet pump 2 pumps the sewage into the filter tank 4 for concentration and filtration through the quartz sand filter material 9, the filtered clean water enters the liquid storage tank 1 through the return pipe 7, and the water outlet pump 3 pumps the clean water into the outlet pipe 6 through the drain pipe 8 for discharge; during filtration and concentration, as the concentration of the concentrated liquid in the filter tank 4 becomes higher and higher, when the pressure gauge reaches the set value, the water inlet pump 2 is automatically closed, and the first solenoid valve 10, the second solenoid valve 11 and the third solenoid valve 12 are closed at the same time, and the fourth solenoid valve 13 and the fifth solenoid valve 14 are opened, and the concentrated slurry in the filter tank 4 flows out from the fifth solenoid valve 14 through the action of the water outlet pump 3, thereby backwashing the filter tank 4.

[0020] The above-mentioned backwashing time can be set through the system. The entire filtering / backwashing action is completed by the intelligent control system. During backwashing, the high pressure is set by the pressure gauge and the signal is transmitted to the system through communication. After receiving the signal, the system gives an instruction to enable the corresponding pump and solenoid valve to execute the action instruction, thereby realizing the automatic switching mode of filtering / backwashing.

[0021] The utility model utilizes quartz sand to solidify into a filter material quartz sand filter material 9, which is installed in a filter tank 4 to filter / concentrate sewage. Quartz sand is used as the filter material raw material, and a curing adhesive is added in the production process of the quartz sand filter material 9, which can save the cost of consumables when replacing, and can be made of quartz sand of different specifications according to the requirements of filtering accuracy, thereby realizing convenient use. When the concentrated slurry is backwashed, because the process is designed as a bottom-in and top-out structure, during the backwashing process, it is easy to flush the pollutants in the filter tank 4, and unlimited recycling can be achieved without causing secondary pollution. Because the fluid is full in the filter tank 4 during filtration, the pressure in the entire filter tank 4 is evenly pressurized, so the quartz sand filter material 9 will not be blocked, and the effect of recycling can be achieved, achieving the purpose of high efficiency, energy saving, and environmental protection.

[0022] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An energy-saving sewage filtration system, comprising a liquid storage tank (1), a water inlet pump (2), a water outlet pump (3) and a filter tank (4), characterized in that: The water inlet pump (2) is connected to the bottom of the filter tank (4) via a water inlet pipe (5), the top of the filter tank (4) is connected to a water outlet pipe (6), a return pipe (7) is connected between the water outlet pipe (6) and the top of the liquid storage tank (1), the water outlet end of the water outlet pump (3) is connected to the water outlet pipe (6) via a drain pipe (8), and the water inlet end of the water outlet pump (3) is connected to the bottom pipeline of the side of the liquid storage tank (1); The filter tank (4) is installed with a quartz sand filter material (9) made by adding a curing adhesive, and the pipeline connecting the water inlet pump (2) to the filter tank (4) is connected to a first solenoid valve (10) for controlling the treated sewage to enter the filter tank (4).

2. The energy-saving sewage filtration system according to claim 1, characterized in that: A second electromagnetic valve (11) is provided at the end of the water outlet pipe (6), and a third electromagnetic valve (12) is provided on the water return pipe (7).

3. The energy-saving sewage filtration system according to claim 2, characterized in that: A fourth electromagnetic valve (13) is provided on the water outlet pipe (6) between the return pipe (7) and the drain pipe (8), and a fifth electromagnetic valve (14) is connected to the water inlet pipe (5).

4. The energy-saving sewage filtration system according to claim 1, characterized in that: The filter tank (4) is provided with a pressure gauge for displaying the pressure inside the tank.

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