Filtering and precipitating device suitable for high-phosphorus wastewater

Abstract

The filtering and precipitating device comprises a precipitating tank main body and a reaction inner cylinder, the top of the precipitating tank main body is connected with a medicament adding pipe and a stirring motor, the power end of the bottom of the stirring motor is connected with a stirring shaft extending into the reaction inner cylinder, and the top of the precipitating tank main body is connected with a discharge opening. The outer side of the sedimentation tank main body is connected with a sealing ring box for sealing and wrapping the discharge opening, the bottom of the sealing ring box is connected with a purified water discharge pipe, the purified water discharge pipe is connected with an electric control valve, and the interior of the discharge opening is connected with an annular filter part. Compared with the prior art, the high-phosphorus wastewater treatment device has the advantages that by arranging the annular opening and the annular filtering piece, high-efficiency and high-quality separation of purified water and precipitates can be conveniently carried out while high-phosphorus wastewater is chemically treated, so that the subsequent treatment cost and procedures can be reduced, the treatment cost is reduced, and the treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-phosphorus wastewater treatment equipment, in particular to a filtering and sedimentation device suitable for high-phosphorus wastewater. Background Art

[0002] High-phosphorus wastewater refers to wastewater containing high concentrations of phosphates, which usually comes from production processes, urban sewage treatment plants, and agricultural wastewater. High-phosphorus wastewater causes great harm to the environment and ecosystem, so it needs to be effectively treated.

[0003] At present, the methods for treating high-phosphorus wastewater mainly include chemical precipitation, biological treatment and physicochemical treatment. Among them, chemical precipitation is a more common treatment method. By adding an appropriate amount of chemical agents, the phosphate in the wastewater reacts with the agent to form an insoluble precipitate, and then the phosphate is removed by precipitation and separation of the precipitate. However, the precipitation equipment in the prior art often easily causes the precipitate to be discharged with the water flow when separating the clean water and the precipitate, which has a negative impact on subsequent treatment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a filtering and sedimentation device suitable for high-phosphorus wastewater, which is convenient for separating sediments, in view of the deficiencies raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides a technical solution: a filtering and sedimentation device suitable for high-phosphorus wastewater, comprising a sedimentation tank body, wherein the interior of the sedimentation tank body is connected with a reaction inner cylinder, one side of the sedimentation tank body is connected with a wastewater inlet pipe communicating with the interior of the reaction inner cylinder, the bottom of the reaction inner cylinder is provided with a discharge port, the bottom of the sedimentation tank body is connected with a sewage collecting pipe, the bottom of the sewage collecting pipe is connected with a sewage pump, the top of the sedimentation tank body is connected with a support frame, the support frame is connected with a reagent adding pipe and a stirring motor matching the reaction inner cylinder, the bottom power end of the stirring motor is connected with a stirring shaft extending into the reaction inner cylinder, and the top of the sedimentation tank body is connected with a discharge opening;

[0006] The outside of the sedimentation tank body is connected to a sealing ring box that seals and wraps the discharge opening, the bottom of the sealing ring box is connected to a clean water drainage pipe, the clean water drainage pipe is connected to an electric control valve, and the inside of the discharge opening is connected to an annular filter.

[0007] Furthermore, a plurality of fixed support rods are fixedly welded between the outer side of the top of the reaction inner cylinder and the inner wall of the top of the sedimentation tank body, and a plurality of fixed support blocks are connected inside the discharge opening to facilitate the fixed support operation of the equipment.

[0008] Furthermore, the stirring shaft is located inside the reaction inner tube and is connected to a plurality of stirring rods. The stirring shaft is located inside the reaction inner tube and is connected to a main scraper frame close to the inner wall of the reaction inner tube, which facilitates stirring and dissolving the reagents and prevents the precipitate from sticking to the inner wall.

[0009] Furthermore, the bottom of the stirring shaft is connected with a support rod extending into the sedimentation tank body, and the outer side of the support rod is connected with an auxiliary scraper frame close to the inner wall of the sedimentation tank body to prevent sediment from sticking to the inner wall.

[0010] Furthermore, an air pump is connected to the top of the support frame, and the air pump is connected to an air suction pipe and an air guide pipe connected to the top of the sealing ring box, so as to facilitate air guidance and cleaning of the annular filter.

[0011] The advantage of the filtering and sedimentation device suitable for high-phosphorus wastewater of the utility model compared with the prior art is that the utility model, by setting an annular opening and an annular filter element, facilitates the efficient and high-quality separation of purified water and sediment during the chemical treatment of high-phosphorus wastewater, thereby reducing the cost and process of subsequent treatment, reducing the treatment cost and improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the first structural schematic diagram of a filtering and sedimentation device suitable for high-phosphorus wastewater of the utility model.

[0013] Figure 2 This is the second structural schematic diagram of a filtering and sedimentation device suitable for high-phosphorus wastewater of the utility model.

[0014] Figure 3 The utility model is a schematic cross-sectional structure diagram of a filtering and sedimentation device suitable for high-phosphorus wastewater.

[0015] As shown in the figure: 1. Sedimentation tank body; 2. Reaction inner tube; 3. Wastewater inlet pipe; 4. Support frame; 5. Reagent addition pipe; 6. Discharge outlet; 7. Sewage collecting pipe; 8. Sewage pump; 9. Stirring motor; 10. Stirring shaft; 11. Stirring rod; 12. Main scraper frame; 13. Discharge opening; 14. Annular filter element; 15. Fixed support rod; 16. Fixed support block; 17. Sealing ring box; 18. Clean water drainage pipe; 19. Electric control valve; 20. Vacuum pump; 21. Vacuum pipe; 22. Air guide pipe; 23. Support rod; 24. Auxiliary scraper frame. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] Combined with Figure 1-3, a filtering and sedimentation device suitable for high-phosphorus wastewater, comprising a sedimentation tank body 1, wherein the sedimentation tank body 1 is internally connected with a reaction inner cylinder 2, a plurality of fixed support rods 15 are fixedly welded between the outer side of the top of the reaction inner cylinder 2 and the inner wall of the top of the sedimentation tank body 1, a wastewater inlet pipe 3 connected to the inside of the reaction inner cylinder 2 is connected to one side of the sedimentation tank body 1, a discharge port 6 is provided at the bottom of the reaction inner cylinder 2, a sewage collecting pipe 7 is connected to the bottom of the sedimentation tank body 1, a sewage pump 8 is connected to the bottom of the sewage collecting pipe 7, a support frame 4 is connected to the top of the sedimentation tank body 1, and a reagent adding pipe 5 and a stirring motor 9 for matching the reaction inner cylinder 2 are connected to the support frame 4. This is a common sewage treatment sedimentation tank structure, which mainly performs flocculation, precipitation and discharge operations by external input of sewage and chemical agents. Generally, sewage and chemical agents are input into the reaction inner cylinder 2, and the sewage and chemical agents are reacted through stirring operations to react and precipitate elements in the high-phosphorus wastewater, and the precipitate is pumped out by the bottom sewage pump 8, and the clean water overflows from the top.

[0018] Combined with Figure 3 The bottom power end of the stirring motor 9 is connected with a stirring shaft 10 extending into the reaction inner tube 2. The stirring shaft 10 is located inside the reaction inner tube 2 and is connected with a plurality of stirring rods 11. The stirring shaft 10 is located inside the reaction inner tube 2 and is connected with a main scraper frame 12 that is close to the inner wall of the reaction inner tube 2. The bottom of the stirring shaft 10 is connected with a support rod 23 extending into the sedimentation tank body 1, and the outer side of the support rod 23 is connected with an auxiliary scraper frame 24 that is close to the inner wall of the sedimentation tank body 1.

[0019] In specific implementation: sewage and chemicals are generally input into the reaction inner tube 2, and the stirring motor 9 drives the stirring shaft 10 to rotate and stir, so that the sewage and chemicals react. Multiple stirring rods 11 facilitate rapid stirring operations. The main scraper frame 12 and the auxiliary scraper frame 24 are close to the inner wall to prevent the sediment from sticking to the inner wall, making it convenient for the sediment to fall.

[0020] The top of the sedimentation tank body 1 is connected with a discharge opening 13, and a plurality of fixed support blocks 16 are connected inside the discharge opening 13. The outer side of the sedimentation tank body 1 is connected with a sealing ring box 17 that seals and wraps the discharge opening 13, so that the clean water will overflow from the discharge opening 13 into the sealing ring box 17 for operation. The bottom of the sealing ring box 17 is connected with a clean water drainage pipe 18, and the clean water drainage pipe 18 is connected with an electric control valve 19. The discharge opening 13 is connected with an annular filter 14, and the mesh size of the annular filter 14 can be set as needed, so that the sediment can be filtered to prevent the sediment from being discharged with the water flow. The support frame 4 is provided with an air pump 20 at the top, and the air pump 20 is provided with an air extraction pipe 21 and an air guide pipe 22 connected with the top of the sealing ring box 17. During use, air is extracted by the air pump 20 to supply air to the inside of the sealing ring box 17. During the air supply process, the electric control valve 19 can be closed to allow the gas in the sealing ring box 17 to fully clean the annular filter element 14. The setting can be customized according to the size of the equipment. If the equipment is relatively small, only one or a small number of air guide pipes 22 can be set. If the equipment is too large, multiple air guide pipes 22 can be set to supply air to the sealing ring box 17 in multiple directions to clean the annular filter element 14.

[0021] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A filtering and sedimentation device suitable for high-phosphorus wastewater, comprising a sedimentation tank body (1), wherein the sedimentation tank body (1) is internally connected with a reaction inner cylinder (2), one side of the sedimentation tank body (1) is connected with a wastewater inlet pipe (3) communicating with the interior of the reaction inner cylinder (2), the bottom of the reaction inner cylinder (2) is provided with a discharge port (6), the bottom of the sedimentation tank body (1) is connected with a sewage collecting pipe (7), the bottom of the sewage collecting pipe (7) is connected with a sewage pump (8), the top of the sedimentation tank body (1) is connected with a support frame (4), the support frame (4) is connected with a reagent adding pipe (5) and a stirring motor (9) matching the reaction inner cylinder (2), the bottom power end of the stirring motor (9) is connected with a stirring shaft (10) extending into the reaction inner cylinder (2), characterized in that: The top of the sedimentation tank body (1) is connected with a discharge opening (13); The outside of the sedimentation tank body (1) is connected to a sealing ring box (17) that seals and wraps the discharge opening (13); the bottom of the sealing ring box (17) is connected to a clean water drainage pipe (18); the clean water drainage pipe (18) is connected to an electric control valve (19); and the inside of the discharge opening (13) is connected to an annular filter element (14).

2. A filtering and sedimentation device suitable for high-phosphorus wastewater according to claim 1, characterized in that: A plurality of fixed support rods (15) are fixedly welded between the outer side of the top of the reaction inner cylinder (2) and the inner wall of the top of the sedimentation tank body (1), and a plurality of fixed support blocks (16) are connected inside the discharge opening (13).

3. A filtering and sedimentation device suitable for high-phosphorus wastewater according to claim 1, characterized in that: The stirring shaft (10) is located inside the reaction inner tube (2) and is connected to a plurality of stirring rods (11). The stirring shaft (10) is located inside the reaction inner tube (2) and is connected to a main scraper frame (12) that is closely attached to the inner wall of the reaction inner tube (2).

4. A filtering and sedimentation device suitable for high-phosphorus wastewater according to claim 1, characterized in that: The bottom of the stirring shaft (10) is connected to a support rod (23) extending into the sedimentation tank body (1), and the outer side of the support rod (23) is connected to an auxiliary scraper frame (24) that is closely attached to the inner wall of the sedimentation tank body (1).

5. A filtering and sedimentation device suitable for high-phosphorus wastewater according to claim 1, characterized in that: The top of the support frame (4) is connected to an air pump (20), and the air pump (20) is connected to an air extraction pipe (21) and an air guide pipe (22) connected to the top of the sealing ring box (17).

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