Integrated sludge reduction dehydration treatment device

Abstract

The utility model relates to an integrated sludge reduction dehydration treatment device which comprises a base, a raw water tank, a centrifugal pump, a coagulant storage tank, a flocculating agent storage tank, a sedimentation filter tank, a sludge pump and a fan are arranged on the base, and an inner cavity of the sedimentation filter tank is provided with a sedimentation tank, a first membrane filter tank and a second membrane filter tank. A coagulating basin, a first clear water tank, a second clear water tank and a raw water tank are arranged outside the sedimentation filter tank, the raw water tank is connected with the coagulating basin, a coagulant storage tank and a flocculant storage tank are connected with the coagulating basin, an overflow hole is formed between the coagulating basin and the sedimentation basin, a sedimentation inclined plate is arranged in the sedimentation basin, and an overflow hole is formed between the upper end of the sedimentation basin and the first membrane filter tank; the bottom of the sedimentation tank is connected with the upper end of the second membrane filtration tank through a sludge pump, the first membrane filtration tank and the second membrane filtration tank are connected with the first clear water tank and the second clear water tank through peristaltic pumps, and the fan is connected with the first membrane filtration tank and the second membrane filtration tank through aeration pipelines. Modularized splicing is adopted, the installation efficiency is greatly improved, and operation is stable.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge treatment, and in particular to an integrated sludge reduction and dewatering treatment device. Background Technology

[0002] Currently, the equipment used for sludge reduction and dewatering is basically conventional dewatering equipment: screw press thickener, belt thickener, centrifugal thickener, etc. Although the above thickeners can reduce the moisture content to a certain extent, they require the addition of various chemicals, which increases costs and is prone to secondary pollution.

[0003] It is urgent to overcome the shortcomings of traditional processes and develop a high-efficiency, economical, easy-to-disassemble and assemble, and simple-to-maintain processing device. Utility Model Content

[0004] The present invention aims to address the shortcomings of the existing technology by providing an integrated sludge reduction and dewatering treatment device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] An integrated sludge reduction and dewatering treatment device includes a base, on which are mounted a raw water tank, a centrifugal pump, a coagulant storage tank, a flocculant storage tank, a sedimentation filter box, a sludge pump, and a blower. The sedimentation filter box is divided into a sedimentation tank on the left and a first membrane filter tank and a second membrane filter tank on the right by a partition. A coagulation tank is located outside the sedimentation tank, and a first clear water tank and a second clear water tank are located outside the first membrane filter tank. The raw water tank is connected to the coagulation tank via the centrifugal pump and a first delivery pipeline. The coagulant storage tank is connected to the coagulation tank via a delivery pump and a second delivery pipeline. The flocculant storage tank is connected to the coagulation tank via a delivery pump and a third delivery pipeline. Several agitators are located on the top of the coagulation tank. The motor and the output shaft of the stirring motor extend into the coagulation tank and are connected to stirring blades. A flow passage is provided between the coagulation tank and the sedimentation tank. A flow guide baffle is provided on one side of the sedimentation tank near the flow passage of the coagulation tank. A flow guide channel is formed between one side of the flow guide baffle and the coagulation tank. A sedimentation inclined plate is provided between the other side of the flow guide baffle and the inner wall of the sedimentation tank. An overflow hole is provided between the upper end of the sedimentation tank and the first membrane filter tank. The bottom of the sedimentation tank is connected to the upper end of the second membrane filter tank through a sludge pump and a sludge conveying pipe. The first membrane filter tank and the second membrane filter tank are connected to the first clear water tank and the second clear water tank respectively through a peristaltic pump and a suction pipe. A blower is connected to the first membrane filter tank and the second membrane filter tank through an aeration pipe.

[0007] An electrical control box is also installed on the base.

[0008] A return pipe is installed between the first delivery pipeline and the top of the raw water tank.

[0009] The first delivery pipeline is equipped with an inlet flow meter.

[0010] The raw water tank is equipped with a float level gauge.

[0011] The first and second membrane filtration tanks are equipped with flat sheet membranes.

[0012] An air flow meter is installed on the aeration pipe.

[0013] The beneficial effects of this utility model are as follows: This utility model is designed for the treatment of excess sludge, integrating sludge treatment technology and automatic control into one unit. The treatment device is made of stainless steel to maximize the service life of the equipment. The equipment is assembled using modular splicing, which greatly improves installation efficiency. The system adopts PLC fully automatic control, requiring no personnel on duty, and operates stably. It can greatly reduce the water content of sludge, reduce the volume of sludge, and save sludge disposal costs. It can be promoted and used as a secondary thickening treatment device for excess sludge in sewage treatment plants. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 for Figure 2 Sectional view of AA;

[0017] Figure 4 for Figure 3 Sectional view of BB;

[0018] Figure 5 for Figure 3 Sectional view of CC;

[0019] In the diagram: 1-Base; 2-Raw water tank; 3-Centrifugal pump; 4-Coagulant storage tank; 5-Flocculant storage tank; 6-Sedimentation filter box; 7-Sludge pump; 8-Blower; 9-Sedimentation tank; 10-First membrane filter tank; 11-Second membrane filter tank; 12-Coagulation tank; 13-First clear water tank; 14-Second clear water tank; 15-First conveying pipe; 16-Second conveying pipe; 17-Third conveying pipe; 18-Agitator motor; 19-Flow hole; 20-Guide baffle; 21-Guide channel; 22-Sedimentation inclined plate; 23-Sludge conveying pipe; 24-Peristaltic pump; 25-Aeration pipe; 26-Electrical control box; 27-Return pipe; 28-Inlet flow meter; 29-Flat sheet membrane; 30-Inlet air flow meter; 31-Conical sludge discharge hopper; 32-Reinforcing diagonal brace; 33-Vertical support column;

[0020] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] like Figures 1 to 5 As shown, an integrated sludge reduction and dewatering treatment device includes a base 1, a raw water tank 2, a centrifugal pump 3, a coagulant storage tank 4, a flocculant storage tank 5, a sedimentation filter box 6, a sludge pump 7, a blower 8, a sedimentation tank 9, a first membrane filter tank 10, a second membrane filter tank 11, a coagulation tank 12, a first clear water tank 13, a second clear water tank 14, a first conveying pipe 15, a second conveying pipe 16, a third conveying pipe 17, a stirring motor 18, a flow passage 19, a flow guide baffle 20, a flow guide channel 21, a sedimentation inclined plate 22, a sludge conveying pipe 23, a peristaltic pump 24, an aeration pipe 25, an electrical control box 26, a return pipe 27, an inlet flow meter 28, a flat sheet membrane 29, an air inlet flow meter 30, a conical sludge discharge hopper 31, reinforcing diagonal braces 32, and a vertical support column 33.

[0026] This utility model adopts a modular (unit-based) assembly method and can be used for temporary or permanent sludge reduction and dewatering treatment. The device features small space requirements, easy assembly and disassembly, and versatility.

[0027] The base 1 is equipped with a raw water tank 2, a centrifugal pump 3, a coagulant storage tank 4, a flocculant storage tank 5, a sedimentation filter box 6, a sludge pump 7, and a blower 8. The sedimentation filter box 6 is divided into a sedimentation tank 9 on the left and a first membrane filter tank 10 and a second membrane filter tank 11 on the right by a partition. A coagulation tank 12 is located outside the sedimentation tank 9, and a first clear water tank 13 and a second clear water tank 14 are located outside the first membrane filter tank 10. The raw water tank 2 is connected to the coagulation tank 12 through the centrifugal pump 3 and a first delivery pipe 15. The coagulant storage tank 4 is connected to the coagulation tank 12 through a delivery pump and a second delivery pipe 16. The flocculant storage tank 5 is connected to the coagulation tank 12 through a delivery pump and a third delivery pipe 17. Several stirring motors 18 are installed on the top of the coagulation tank 12, and the output shafts of the stirring motors 18 extend into the mixing tank. The coagulation tank 12 is connected to a stirring blade. A flow passage 19 is provided between the coagulation tank 12 and the sedimentation tank 9. A flow guide baffle 20 is provided on one side of the sedimentation tank 9 near the flow passage 19 of the coagulation tank 12. A flow guide channel 21 is formed between one side of the flow guide baffle 20 and the coagulation tank 12. A sedimentation inclined plate 22 is provided between the other side of the flow guide baffle 20 and the inner wall of the sedimentation tank 9. An overflow hole is provided between the upper end of the sedimentation tank 9 and the first membrane filter tank 10. The bottom of the sedimentation tank 9 is connected to the upper end of the second membrane filter tank 11 through a sludge pump 7 and a sludge conveying pipe 23. The first membrane filter tank 10 and the second membrane filter tank 11 are connected to the first clear water tank 13 and the second clear water tank 14 respectively through a peristaltic pump 24 and a suction pipe. The blower 8 is connected to the first membrane filter tank 10 and the second membrane filter tank 11 through an aeration pipe 25.

[0028] The base 1 is also equipped with an electrical control box 26.

[0029] A return pipe 27 is provided between the first delivery pipe 15 and the top of the raw water tank 2.

[0030] The first conveying pipeline 15 is equipped with an inlet flow meter 28.

[0031] The original water tank 2 is equipped with a float level gauge.

[0032] The first membrane filter tank 10 and the second membrane filter tank 11 are equipped with flat sheet membranes 29. The flat sheet membrane 29 is approximately 6m long. 2 The component has a pore size of 0.1–0.3 μm, thus possessing the filtration function of an ultrafiltration membrane. The incoming water comes from the supernatant in sedimentation tank 9. Suspended solids are intercepted within the tank by negative pressure suction. Clean water is pumped into the first clean water tank 13 and the second clean water tank 14 via peristaltic pump 24. Water overflows when a certain level is reached. When the negative pressure in the suction pipe reaches -30 kPa, water production stops, and the suction pump 24 reverses to draw clean water from the first clean water tank 13 and the second clean water tank 14 for cleaning. This process is controlled by the electrical control box 26.

[0033] An air inlet flow meter 30 is installed on the aeration pipe 25.

[0034] The bottom of sedimentation tank 9 is equipped with two conical sludge discharge hoppers 31.

[0035] A reinforcing diagonal brace 32 is provided between the bottom of the coagulation tank 12 and the side wall of the sedimentation and filtration box 6.

[0036] Vertical support columns 33 are provided between the bottom of the first clean water tank 13 and the second clean water tank 14 and the base 1.

[0037] This utility model is a combined coagulation sedimentation and membrane filtration treatment, specifically including a raw water tank 2, a coagulation sedimentation system, and a membrane filtration backwashing system. The raw water tank 2 is lifted by a centrifugal pump 3 and enters a coagulation tank 12. The coagulation tank 12 flows by gravity into a sedimentation tank 9. The sedimentation tank 9 enters a first membrane filtration tank 10 through an effluent weir. The coagulant storage tank 4 and flocculant storage tank 5 of the dosing system are pumped into the coagulation tank 12 through pipes and pumps. The bottom of the sedimentation tank 9 is periodically discharged into a second membrane filtration tank 11 through a sludge pump 7 and a sludge conveying pipe 23. The first membrane filtration tank 10 and the second membrane filtration tank 11 are connected to a first clear water tank 13 and a second clear water tank 14 respectively through a peristaltic pump 24 and a suction pipe. The first clear water tank 13 and the second clear water tank 14 overflow water.

[0038] A float level switch is installed in the raw water tank 2. When the raw water tank 2 is at a low level, the front end is automatically replenished with sewage through a program interlock control until the sewage is stopped when the level is high. A centrifugal pump 3 is installed outside the raw water tank 2 to lift the sewage into the coagulation tank 12 for reaction and sedimentation. A rotor flow meter, i.e., inlet flow meter 28, is installed on the pipeline to monitor the inlet flow in real time and the flow can be controlled by adjusting the return valve.

[0039] The coagulant and flocculant are added to the coagulation tank 12 in a certain proportion through the dosing system (designed residence time is 5-10 minutes). The mixture is then uniformly mixed by the mixing and stirring mechanism in the coagulation tank 12, so that the suspended sludge in the wastewater reacts with the coagulant and flocculant to become large suspended particles. These particles then settle in the sedimentation tank 9 by gravity in the conical sludge discharge hopper 31. The supernatant flows into the first membrane filter tank 10 through the overflow hole. The bottom sludge is periodically pumped into the second membrane filter tank 11 by the sludge pump 7 for further concentration and filtration. After concentration to a certain extent, the concentrated sludge is vented into a designated container.

[0040] This utility model addresses the treatment of excess sludge, integrating sludge treatment technology and automatic control. The treatment device is made of stainless steel to maximize its service life. The equipment is modularly assembled, greatly improving installation efficiency. The system uses PLC fully automatic control, requiring no personnel on-site, ensuring stable operation, and can significantly reduce sludge moisture content and volume, saving sludge disposal costs. It can be promoted and used as a secondary thickening treatment device for excess sludge in wastewater treatment plants.

[0041] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An integrated sludge reduction and dewatering treatment device, characterized in that, The system includes a base (1), on which are mounted a raw water tank (2), a centrifugal pump (3), a coagulant storage tank (4), a flocculant storage tank (5), a sedimentation filter box (6), a sludge pump (7), and a blower (8). The sedimentation filter box (6) is divided into a sedimentation tank (9) on the left, a first membrane filter tank (10) on the right, and a second membrane filter tank (11) on the right, by a partition. The sedimentation filter box (6) has a coagulation tank (12) outside the sedimentation tank (9) and outside the first membrane filter tank (10). The coagulation tank is equipped with a first clear water tank (13) and a second clear water tank (14) on one side. The raw water tank (2) is connected to the coagulation tank (12) via a centrifugal pump (3) and a first conveying pipe (15). The coagulant storage tank (4) is connected to the coagulation tank (12) via a conveying pump and a second conveying pipe (16). The flocculant storage tank (5) is connected to the coagulation tank (12) via a conveying pump and a third conveying pipe (17). Several stirring motors (18) are installed on the top of the coagulation tank (12). The output shaft extends into the coagulation tank (12) and is connected to an agitator blade. A flow passage (19) is provided between the coagulation tank (12) and the sedimentation tank (9). A flow guide baffle (20) is provided on one side of the sedimentation tank (9) near the flow passage (19) of the coagulation tank (12). A flow guide channel (21) is formed between one side of the flow guide baffle (20) and the coagulation tank (12). A sedimentation inclined plate (22) is provided between the other side of the flow guide baffle (20) and the inner wall of the sedimentation tank (9). The upper end of the sedimentation tank (9) is connected to the first An overflow hole is provided between the membrane filter tanks (10). The bottom of the sedimentation tank (9) is connected to the upper end of the second membrane filter tank (11) through a sludge pump (7) and a sludge conveying pipe (23). The first membrane filter tank (10) and the second membrane filter tank (11) are connected to the first clear water tank (13) and the second clear water tank (14) respectively through a peristaltic pump (24) and a suction pipe. The blower (8) is connected to the first membrane filter tank (10) and the second membrane filter tank (11) through an aeration pipe (25).

2. The integrated sludge reduction and dewatering treatment device according to claim 1, characterized in that, An electrical control box (26) is also provided on the base (1).

3. The integrated sludge reduction and dewatering treatment device according to claim 2, characterized in that, A return pipe (27) is provided between the first delivery pipe (15) and the top of the raw water tank (2).

4. The integrated sludge reduction and dewatering treatment device according to claim 3, characterized in that, A water inlet flow meter (28) is installed on the first delivery pipeline (15).

5. The integrated sludge reduction and dewatering treatment device according to claim 4, characterized in that, The raw water tank (2) is equipped with a float level gauge.

6. The integrated sludge reduction and dewatering treatment device according to claim 5, characterized in that, The first membrane filter (10) and the second membrane filter (11) are equipped with flat sheet membranes (29).

7. The integrated sludge reduction and dewatering treatment device according to claim 6, characterized in that, An air flow meter (30) is installed on the aeration pipe (25).

8. The integrated sludge reduction and dewatering treatment device according to claim 7, characterized in that, The sedimentation tank (9) is equipped with two conical sludge discharge hoppers (31) at the bottom.

9. The integrated sludge reduction and dewatering treatment device according to claim 8, characterized in that, A reinforcing diagonal brace (32) is provided between the bottom of the coagulation tank (12) and the side wall of the sedimentation filter box (6).

10. The integrated sludge reduction and dewatering treatment device according to claim 9, characterized in that, Vertical support columns (33) are provided between the bottom of the first clean water tank (13) and the second clean water tank (14) and the base (1).

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