Sewage recovery device capable of realizing oil-water separation

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage recovery device capable of separating oil from water, which comprises an oil-water separation tank and a solid-liquid separation tank, a partition plate is arranged in the oil-water separation tank and attached to the inner wall of the oil-water separation tank, and a water passing pipe is arranged in the middle of the partition plate in a penetrating mode. A breather pipe penetrates through the oil-water separation tank and is positioned on the left side of the partition plate, a valve is arranged on the breather pipe, a water outlet pipe penetrates through the oil-water separation tank and is positioned on the right side of the partition plate, the water outlet pipe is of a U-shaped structure with a downward opening, and a transverse pipe of the water outlet pipe penetrates through the oil-water separation tank. Water at the bottom is separated and discharged by arranging the obliquely arranged water passing pipe and the water outlet pipe with the fall and through the principle that oil and water are different in density, and the oil and water layering speed can be increased by arranging the breather pipe and the heating block.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater recovery device capable of separating oil and water. Background Technology

[0002] An oil-water separator is a device used to separate oil and water. It is commonly used in industrial wastewater treatment, marine oil-water treatment, and other fields to ensure that the oil in the wastewater is separated without affecting the water quality discharge standards. However, during the separation process, when the discharge of the oil-water mixture into the oil-water separator is too large, it will cause a large disturbance to the oil and water being separated, thereby reducing the separation efficiency. As the wastewater is continuously discharged into the separation device, the surface of the liquid will be undulated, and some water on the surface will easily be discharged from the oil outlet along with the oil. This results in the separated oil containing a certain amount of water and the separated water containing a certain amount of oil, leading to poor oil-water separation effect. Summary of the Invention

[0003] The purpose of this invention is to address the deficiencies and shortcomings of existing technologies by providing a wastewater recycling device capable of separating oil and water, which can solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: It includes an oil-water separator and a solid-liquid separator. The oil-water separator is connected to the solid-liquid separator via a pipe. A baffle is installed inside the oil-water separator, and the baffle is fitted against the inner wall of the oil-water separator. A water pipe passes through the middle of the baffle and is inclined from the lower left to the upper right. A vent pipe passes through the oil-water separator on the left side of the baffle and is equipped with a valve. A water outlet pipe passes through the oil-water separator on the right side of the baffle. The water outlet pipe has a downward-opening "U"-shaped structure, and the horizontal part of the water outlet pipe passes through the oil-water separator and is connected to it.

[0005] Furthermore, multiple heating blocks are provided on the upper left side of the partition, the top of the oil-water separator has a hollow structure, and a connecting pipe is provided through the top wall. A rotating nozzle is provided below the connecting pipe.

[0006] Furthermore, a drain pipe and a drain pipe are provided through the bottom of the oil-water separator. The drain pipe and the drain pipe are respectively located on both sides of the partition. Valves are provided on both the drain pipe and the drain pipe. A support is provided at the bottom of the oil-water separator. A water inlet is provided through the left side of the oil-water separator. A filter screen is provided inside the water inlet.

[0007] Furthermore, the top plate of the solid-liquid separation tank is provided with a liquid inlet, and multiple fixed nozzles are installed through the bottom of the top plate. There is a flow guiding structure at the bottom of the solid-liquid separation tank, which is connected to the waste discharge port. A valve is provided on the waste discharge port.

[0008] Furthermore, the separator is connected to the inner wall of the solid-liquid separation tank via a connecting rod. Multiple filter holes are evenly provided on the separator. A water pipe is provided through the bottom of the separator. The horizontal water pipe passes through the guide structure and is connected to the water inlet. A valve is provided on the water pipe.

[0009] Furthermore, the liquid separator is positioned above the flow guiding structure, and the top of the liquid separator has a conical structure.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a wastewater recycling device that can separate oil and water. By providing an inclined water pipe and an outlet pipe with a drop, the water at the bottom is separated and discharged based on the principle that oil and water have different densities. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the oil-water separator of this utility model.

[0013] Figure 3 This is a schematic diagram of the internal structure of the solid-liquid separation tank of this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the separatory cylinder of this utility model.

[0015] Explanation of reference numerals in the attached drawings: Oil-water separator 1, partition 11, water pipe 12, heating block 13, water outlet 14, vent pipe 15, support 16, drain pipe 17, drain pipe 18, connecting pipe 19, rotating nozzle 110, water inlet 111, filter screen 112, solid-liquid separator 2, liquid inlet 21, liquid separator 22, flow guide structure 23, waste outlet 24, water pipe 25, conical structure 26, fixed nozzle 27, connecting rod 28, filter hole 29. Detailed Implementation

[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] like Figures 1-4As shown, this specific embodiment adopts the following technical solution: It includes an oil-water separator 1 and a solid-liquid separator 2. The oil-water separator 1 is connected to the solid-liquid separator 2 through a pipe. The oil-water separator 1 includes a partition 11, which is fixedly installed against the inner wall of the oil-water separator 1. A water pipe 12 is provided through the middle of the partition 11. The water pipe 12 is inclined from the lower left to the upper right. A vent pipe 15 is provided through the oil-water separator 1 at the left side of the partition 11. A valve is provided on the vent pipe 15. A water outlet pipe 14 is provided through the oil-water separator 1 at the right side of the partition 11. The water outlet pipe 14 has a downward-opening "U"-shaped structure. The horizontal pipe of the water outlet pipe 14 is provided through the oil-water separator 1 and connected to the oil-water separator 1. Multiple heating blocks 13 are fixed to the upper left side of the partition 11. The top of the oil-water separator 1 has a hollow structure, and a connecting pipe 19 runs through the top wall. A rotating nozzle 110 is fixed below the connecting pipe 19. A drain pipe 17 and a drain pipe 18 run through the bottom of the oil-water separator 1. The drain pipe 17 and the drain pipe 18 are respectively located on both sides of the partition 11. Valves are provided on both the drain pipe 17 and the drain pipe 18. A support 16 is fixed to the bottom of the oil-water separator 1. An inlet 111 runs through the left side of the oil-water separator 1. A filter screen 112 is fixed inside the inlet 111. The top plate of the solid-liquid separator 2 has a passage. The liquid outlet 21 has multiple fixed nozzles 27 running through it below the top plate. The solid-liquid separation tank 2 has a flow guide structure 23 below it, which is connected to the waste outlet 24. The waste outlet 24 is equipped with a valve. The liquid separator 22 is connected to the inner wall of the top of the solid-liquid separation tank 2 via a connecting rod 28. The liquid separator 22 has multiple filter holes 29 evenly distributed on it. A water pipe 25 runs through it at the bottom of the liquid separator 22. The water pipe 25 runs horizontally through the flow guide structure 23 and is connected to the water inlet 111. The water pipe 25 is equipped with a valve. The liquid separator 22 is positioned above the flow guide structure 23. The top of the liquid separator 22 has a conical structure 26.

[0018] When using this invention, oil and water are added to the solid-liquid separator 2 through the liquid inlet 21. Larger solid impurities in the oil and water slide down the conical structure 26 to the bottom and fall into the guide structure 23, causing the oil and water levels to rise. The oil floats above the water surface due to the density difference and enters the separator 22 through the filter hole 29. Then, the valve on the water pipe 25 is opened, and the water at the bottom enters the oil-water separator 1 through the water pipe 25. The filter screen 112 on the water inlet 111 blocks smaller impurities, completing the initial filtration. Then, the valve on the waste outlet 24 is opened to discharge the solid impurities. After the oil and water enter the oil-water separator 1, gas is introduced through the vent pipe 15, causing oil droplets to adhere to the air bubbles and form... Scum is released, which accelerates the rise of the oil mixed at the bottom to the surface. When the oil and water viscosity is high, the heating block 13 is turned on to reduce the viscosity of the oil and water, making oil-water separation easier. The oil will float more easily, and the water will flow more easily, accelerating the oil-water separation. The liquid level rises above the water pipe 12, and the water below the oil level enters the right side of the baffle 11 through the water pipe 12 for final separation. After the water level is higher than the water outlet pipe 14, the separated water is discharged along the water outlet pipe 14. After the separation is completed, the drain pipe 17 and the drain pipe 18 are turned on to discharge the oil and the remaining water. When it is necessary to clean the inside of the tank, the water pipe is connected to the fixed nozzle 27 and the rotating nozzle 110 to clean the inside of the tank.

[0019] Compared with the prior art, the beneficial effects of this specific embodiment are:

[0020] By using a sloping water inlet pipe and a water outlet pipe with a drop, the water at the bottom is separated and discharged based on the principle of different oil and water densities.

[0021] By incorporating a vent pipe, the air bubbles in the vent pipe combine with the oil at the bottom, causing oil droplets to adhere to the air bubbles and form scum, thus accelerating the oil-water separation process.

[0022] By incorporating a heating block, the viscosity of oil and water is reduced, making oil-water separation easier. Oil will float more easily, and water will flow more easily, thus accelerating oil-water separation.

[0023] By incorporating a separatory cylinder and utilizing the principle of different oil and water densities, larger solid impurities can be filtered out while simultaneously achieving preliminary oil-water separation.

[0024] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wastewater recycling device capable of separating oil and water, characterized in that: It includes an oil-water separation tank (1) and a solid-liquid separation tank (2). The oil-water separation tank (1) is connected to the solid-liquid separation tank (2) through a pipeline. A partition plate (11) is arranged inside the oil-water separation tank (1). The partition plate (11) is arranged in contact with the inner wall of the oil-water separation tank (1). A water passing pipe (12) is arranged through the middle of the partition plate (11). The water passing pipe (12) is arranged obliquely from the lower left to the upper right. At the position on the left side of the partition plate (11) on the oil-water separation tank (1), a ventilation pipe (15) is arranged through. A valve is arranged on the ventilation pipe (15). At the position on the right side of the partition plate (11) on the oil-water separation tank (1), a water outlet pipe (14) is arranged through. The water outlet pipe (14) is in a "C" shape with an opening downward. The horizontal pipe of the water outlet pipe (14) is arranged through the oil-water separation tank (1) and is connected to the oil-water separation tank (1).

2. The wastewater recovery device capable of separating oil and water according to claim 1, characterized in that: Above the left side of the partition plate (11), there are multiple heating blocks (13). The top of the oil-water separation tank (1) has a hollow structure, and a connecting pipe (19) is arranged through the top wall. A rotary nozzle (110) is arranged below the connecting pipe (19).

3. The wastewater recovery device capable of separating oil and water according to claim 2, characterized in that: A sewage discharge pipe (17) and a drain pipe (18) are arranged through the bottom of the oil-water separation tank (1). The sewage discharge pipe (17) and the drain pipe (18) are respectively arranged on both sides of the partition plate (11). Valves are arranged on both the sewage discharge pipe (17) and the drain pipe (18). A support one (16) is arranged at the bottom of the oil-water separation tank (1). An inlet (111) is arranged through the left side of the oil-water separation tank (1). A filter screen (112) is arranged inside the inlet (111).

4. The wastewater recovery device capable of separating oil and water according to claim 3, characterized in that: A liquid passing port (21) is opened on the top plate of the solid-liquid separation tank (2), and multiple fixed nozzles (27) are arranged through below the top plate. There is a diversion structure (23) below the solid-liquid separation tank (2). The diversion structure (23) is connected to a waste discharge port (24). A valve is arranged on the waste discharge port (24).

5. The wastewater recovery device capable of separating oil and water according to claim 4, characterized in that: A liquid separation cylinder (22) is connected to the inner top wall of the solid-liquid separation tank (2) through a connecting rod (28). Multiple filtering holes (29) are evenly opened on the liquid separation cylinder (22). A water passing pipe (25) is arranged through the bottom of the liquid separation cylinder (22). The horizontal pipe of the water passing pipe (25) is arranged through the diversion structure (23) and is connected to the inlet (111). A valve is arranged on the water passing pipe (25).

6. The wastewater recovery device capable of separating oil and water according to claim 5, characterized in that: The liquid separation cylinder (22) is arranged above the diversion structure (23). The top of the liquid separation cylinder (22) has a conical structure (26).

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