Multi-stage oil-water separation device

Abstract

The utility model relates to the technical field of oil-water separation, and particularly discloses a multi-stage oil-water separation device which comprises a bottom plate, a first water-oil separation tank, a second water-oil separation tank and a third water-oil separation tank are sequentially mounted on the upper end face of the bottom plate from left to right, and filter frames are mounted at the right ends of the front side wall and the rear side wall in the first water-oil separation tank. A conveying cylinder penetrating through the filter frame is installed at the upper end of the left side wall of the first water-oil separation tank, a port is formed in the right side wall of the conveying cylinder, a first motor is installed on the left side wall of the conveying cylinder, and the output end of the first motor penetrates through the left side wall of the conveying cylinder and is provided with a spiral conveying rod which penetrates through the port and extends to the right end of the conveying cylinder; therefore, in the multi-stage separation process of a water-oil mixture, the effect of conveniently discharging and cleaning separated oil and water is achieved, time and labor are saved, manual labor is effectively saved, and the oil-water separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separation technology, specifically a multi-stage oil-water separation device. Background Technology

[0002] Water is one of the main components of household waste. If restaurant swill is directly discharged into the sewer network, it will lead to urban water pollution and eutrophication. The large amount of suspended matter and grease in restaurant swill can also clog pipes. Therefore, multi-stage oil-water separation devices are needed to treat the oil-water mixture from restaurants.

[0003] Current multi-stage oil-water separation devices mainly employ grease traps, utilizing gravity and combined sedimentation principles to effectively separate oil and water in liquids through multi-stage separation. Currently, grease traps separate oil and water based on the principle that oil is lighter than water, isolating oil floating on the water surface within the tank. Water enters through the inlet, passes through a residue basket to remove food residue, and then, through the action of oil baffles and flow deflectors, keeps the oil within the tank. Finally, it is filtered through a deep filter and discharged from the outlet. During operation, manual cleaning of the residue basket and the tank's oil stains is required periodically, which is cumbersome, time-consuming, and labor-intensive, making it inconvenient to use and affecting the efficiency of oil-water separation. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage oil-water separation device, which facilitates the discharge and cleaning of separated oil and water during the multi-stage separation of oil-water mixtures, saving time and effort, effectively reducing manual labor, and improving the efficiency of oil-water separation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage oil-water separation device, including a base plate, on which a first oil-water separation tank, a second oil-water separation tank, and a third oil-water separation tank are installed sequentially from left to right on the upper surface of the base plate. A filter frame is installed on the right end of the front and rear side walls inside the first oil-water separation tank. A conveying cylinder penetrating the filter frame is installed on the upper end of the left side wall of the first oil-water separation tank. A port is provided on the right side wall of the conveying cylinder, and a first motor is installed on the left side wall. The output end of the first motor penetrates the left side wall of the conveying cylinder and is equipped with a spiral conveying rod that passes through the port and extends to the right end of the conveying cylinder.

[0006] The top surface inside the second water-oil separator is equipped with a separator cylinder. Multiple overflow ports are opened through the outer wall of the separator cylinder. The bottom of the outer wall of the separator cylinder is connected to a guide pipe that penetrates the second water-oil separator and is connected to the third water-oil separator.

[0007] The upper surface of the third water-oil separator is equipped with a top cover. The inner side wall of the top cover is detachably connected to an oil-water separator filter element by bolts. The oil-water separator filter element is provided with an oil drain pipe that penetrates the top cover. An oil pump located on the upper surface of the top cover is installed on the outer side wall of the oil drain pipe.

[0008] In order to pump the oil-water mixture in the first oil-water separator into the second oil-water separator through a water pipe, as a preferred embodiment of the multi-stage oil-water separation device of this utility model, a water pipe is installed between the bottom of the right side wall of the first oil-water separator and the outer side wall of the second oil-water separator, and a water pump is installed on the outer side wall of the water pipe.

[0009] In order to facilitate the discharge of water separated from the second water-oil separator, the oil-water mixture in the second water-oil separator is heated to a suitable temperature to reduce the viscosity of the oil. As a preferred embodiment of the multi-stage oil-water separation device of this utility model, a heating plate is installed between the outer and inner side walls on the front and rear sides of the second water-oil separator, and a drain pipe with an electric valve is connected to the bottom.

[0010] To facilitate the discharge of the separated water, in a preferred embodiment of the multi-stage oil-water separation device of this utility model, a drain pipe is connected between the bottom end face of the third oil-water separation tank and the drain pipe, and an electric valve is installed on the outer wall of the drain pipe.

[0011] To facilitate the collection of filtered impurities, in a preferred embodiment of the multi-stage oil-water separation device of this invention, the left end of the bottom face of the conveying cylinder is connected to a discharge pipe, and the other end of the discharge pipe is equipped with a collection box located on the upper surface of the bottom plate.

[0012] In order to allow the water-oil mixture to pass into the interior of the filter frame, as a preferred embodiment of the multi-stage oil-water separation device of this invention, the right side wall of the first water-oil separation tank is connected to a water inlet pipe located above the filter frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention filters impurities in an oil-water mixture using a filter frame. A water pump draws the oil-water mixture from the first oil-water separator into the second oil-water separator through a water pipe. The upper layer of oil flows into the separator cylinder through multiple overflow ports and is further filtered by an oil-water separator filter element. An oil pump can discharge the oil from the oil-water separator filter element, thus performing multi-stage separation of the oil-water mixture.

[0015] When it is necessary to clean the impurities in the filter frame, the first motor and the screw conveyor rod transport the impurities in the filter frame to the collection box through the feed pipe for collection. The water separated in the second water-oil separation box is discharged through the drain pipe, and the water separated in the third water-oil separation box is discharged through the drain pipe. This achieves the effect of conveniently draining and cleaning the separated oil and water, saving time and effort, effectively saving manual labor, and improving the efficiency of oil-water separation. Attached Figure Description

[0016] Fig. 1 This is a cross-sectional view of the overall structure of this utility model;

[0017] Fig. 2 This is a top sectional view of the second water-oil separator of this utility model;

[0018] Fig. 3 This is a left view of the filter frame of this utility model;

[0019] Fig. 4 This is a structural diagram of the separation cylinder of this utility model.

[0020] In the diagram: 1. Base plate; 2. First water-oil separator; 201. Filter frame; 2011. Water inlet pipe; 202. Conveying cylinder; 203. First motor; 204. Screw conveyor rod; 205. Discharge pipe; 206. Collection box; 3. Second water-oil separator; 301. Water pipe; 302. Water pump; 303. Heating plate; 4. Third water-oil separator; 401. Top cover; 5. Separation cylinder; 501. Overflow port; 502. Guide pipe; 6. Drain pipe; 7. Oil-water separator filter element; 701. Oil drain pipe; 702. Oil pump; 8. Drain pipe. Detailed Implementation

[0021] Please see Figs. 1 to 4 A multi-stage oil-water separation device includes a base plate 1. A first oil-water separation tank 2, a second oil-water separation tank 3, and a third oil-water separation tank 4 are installed sequentially from left to right on the upper surface of the base plate 1. A filter frame 201 is installed on the right end of the front and rear side walls inside the first oil-water separation tank 2. A conveying cylinder 202 that penetrates the filter frame 201 is installed on the upper end of the left side wall of the first oil-water separation tank 2. A port is provided on the right side wall of the conveying cylinder 202, and a first motor 203 is installed on the left side wall. The output end of the first motor 203 penetrates the left side wall of the conveying cylinder 202 and is equipped with a spiral conveying rod 204 that passes through the port and extends to the right end of the conveying cylinder 202.

[0022] The top surface of the second water-oil separator 3 is equipped with a separator 5. Multiple overflow ports 501 are opened through the outer wall of the separator 5. The bottom of the outer wall of the separator 5 is connected to a guide pipe 502 that passes through the second water-oil separator 3 and is connected to the third water-oil separator 4.

[0023] The upper end face of the third water-oil separator 4 is equipped with a top cover 401. The inner side wall of the top cover 401 is detachably connected to an oil-water separator filter element 7 by bolts. The oil-water separator filter element 7 is provided with an oil drain pipe 701 that penetrates the top cover 401. An oil pump 702 located on the upper end face of the top cover 401 is installed on the outer side wall of the oil drain pipe 701.

[0024] In this embodiment: the oil-water mixture is introduced into the filter frame 201 to filter impurities in the oil-water mixture. Then, the oil-water mixture can fall to the bottom of the first oil-water separator 2. At this time, the water pump 302 is started to pump the oil-water mixture in the first oil-water separator 2 into the second oil-water separator 3 through the water pipe 301. At this time, the oil-water mixture in the second oil-water separator 3 separates into layers. The upper layer of oil can flow into the separation cylinder 5 through multiple overflow ports 501, and then flow into the third oil-water separator 4 through the guide pipe 502, so that the oil-water separator filter element 7 filters the oil. The oil enters the oil-water separator filter element 7. By starting the oil pump 702, the oil in the oil-water separator filter element 7 can be discharged, and the oil-water mixture is separated in multiple stages.

[0025] When it is necessary to clean the impurities in the filter frame 201, the first motor 203 is started, causing the screw conveyor 204 to rotate and transport the impurities in the filter frame 201 to the collection box 206 through the feed pipe 205 for collection.

[0026] By opening the electric valve on the drain pipe 6, the water separated in the second water-oil separator 3 is discharged. When it is necessary to discharge the water separated in the third water-oil separator 4, the electric valve is opened so that the drain pipe 8 discharges the water separated in the third water-oil separator 4, thus facilitating the cleaning of the separated oil and water.

[0027] As a technical optimization of this utility model, a water pipe 301 is installed between the bottom of the right side wall of the first water-oil separator 2 and the outer side wall of the second water-oil separator 3, and a water pump 302 is installed on the outer side wall of the water pipe 301.

[0028] In this embodiment: by starting the water pump 302, the oil-water mixture in the first oil-water separator 2 is pumped into the interior of the second oil-water separator 3 through the water pipe 301.

[0029] As a technical optimization of this utility model, a heating plate 303 is installed between the outer and inner side walls on the front and rear sides of the second water-oil separator 3, and a drain pipe 6 with an electric valve is connected to the bottom.

[0030] In this embodiment: by setting up a drain pipe 6, it is convenient to drain the water separated by the second water-oil separator 3. The two heating plates 303 (the two heating plates 303 are equipped with temperature control panels) can heat the oil-water mixture inside the second water-oil separator 3 to a suitable temperature, which can reduce the viscosity of the oil.

[0031] As a technical optimization of this utility model, a drain pipe 8 is connected between the bottom end face of the third water-oil separator 4 and the drain pipe 6, and an electric valve is installed on the outer side wall of the drain pipe 8.

[0032] In this embodiment: by opening the electric valve on the drain pipe 8, the filtered water in the drain pipe 8 can be discharged.

[0033] As a technical optimization of this utility model, the left end of the bottom surface of the conveying cylinder 202 is connected to the feeding pipe 205, and the other end of the feeding pipe 205 is equipped with a collection box 206 located on the upper surface of the bottom plate 1.

[0034] In this embodiment: by setting up a collection box 206, the feed pipe 205 can transport impurities into the collection box 206 for collection.

[0035] As a technical optimization of this utility model, the right side wall of the first water-oil separator 2 is connected to a water inlet pipe 2011 located above the filter frame 201.

[0036] In this embodiment: by setting up a water inlet pipe 2011, it is convenient to pass the oil-water mixture into the interior of the first water-oil separator 2.

[0037] Working principle: First, connect the device to an external power source and the control panel. Then, connect the inlet pipe 2011 to the oil-water mixture discharge pipe and the drain pipe 6 to the external water discharge pipe. When separating the oil-water mixture, first let the inlet pipe 2011 pass the oil-water mixture into the filter frame 201 to filter out impurities. Then, the oil-water mixture can fall to the bottom of the first oil-water separator 2. At this time, start the water pump 302 through the control panel to pump the oil-water mixture in the first oil-water separator 2 into the second oil-water separator 2 through the water pipe 301. Inside the second water-oil separator 3, two heating plates 303 are then activated to heat the oil-water mixture inside the second water-oil separator 3 to a suitable temperature, which can reduce the viscosity of the oil and make it easier to separate from the water. At this time, the water-oil mixture in the second water-oil separator 3 separates into layers. The upper layer of oil can flow into the separator 5 through multiple overflow ports 501, and then flow into the third water-oil separator 4 through the guide pipe 502, so that the oil-water separator filter element 7 filters the oil, allowing the oil to enter the oil-water separator filter element 7. The oil in the oil-water separator filter element 7 can be discharged by activating the oil pump 702.

[0038] When it is necessary to clean the impurities in the filter frame 201, the first motor 203 is started to make the screw conveyor 204 rotate to transport the impurities in the filter frame 201, so that the impurities fall into the collection box 206 through the feed pipe 205 for collection.

[0039] By opening the electric valve on the drain pipe 6, the water separated in the second water-oil separator 3 is discharged. When it is necessary to discharge the water separated in the third water-oil separator 4, first stop the flow of oil-water mixture into the first water-oil separator 2, and let the oil-water separator filter element 7 filter the oil in the third water-oil separator 4. Then, by opening the electric valve, the water separated in the third water-oil separator 4 is discharged through the drain pipe 8. This achieves multi-stage separation of water and oil and facilitates the cleaning of the separated oil and water.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage oil-water separation device, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is equipped with a first water-oil separator (2), a second water-oil separator (3) and a third water-oil separator (4) from left to right. A filter frame (201) is installed on the right end of the front and rear side walls inside the first water-oil separator (2). A conveying cylinder (202) that penetrates the filter frame (201) is installed on the upper end of the left side wall of the first water-oil separator (2). A port is provided on the right side wall of the conveying cylinder (202), and a first motor (203) is installed on the left side wall. The output end of the first motor (203) penetrates the left side wall of the conveying cylinder (202) and is equipped with a spiral conveying rod (204) that passes through the port and extends to the right end of the conveying cylinder (202). The top surface inside the second water-oil separator (3) is equipped with a separator (5). The outer side wall of the separator (5) is provided with multiple overflow ports (501). The bottom of the outer side wall of the separator (5) is connected to a guide pipe (502) that penetrates the second water-oil separator (3) and is connected to the third water-oil separator (4). The upper end face of the third water-oil separator (4) is equipped with a top cover (401). The inner side wall of the top cover (401) is detachably connected to an oil-water separator filter element (7) by bolts. The oil-water separator filter element (7) is provided with an oil drain pipe (701) that penetrates the top cover (401). An oil pump (702) located on the upper end face of the top cover (401) is installed on the outer side wall of the oil drain pipe (701).

2. The multi-stage oil-water separation device according to claim 1, characterized in that: A water pipe (301) is installed between the bottom of the right side wall of the first water-oil separator (2) and the outer side wall of the second water-oil separator (3), and a water pump (302) is installed on the outer side wall of the water pipe (301).

3. The multi-stage oil-water separation device according to claim 1, characterized in that: A heating plate (303) is installed between the outer and inner walls on the front and rear sides of the second water-oil separator (3), and a drain pipe (6) with an electric valve is connected to the bottom.

4. A multi-stage oil-water separation device according to claim 3, characterized in that: The bottom end face of the third water-oil separator (4) is connected to the drain pipe (6) by a drain pipe (8), and an electric valve is installed on the outer side wall of the drain pipe (8).

5. A multi-stage oil-water separation device according to claim 1, characterized in that: The left end of the bottom surface of the conveying cylinder (202) is connected to the feeding pipe (205), and the other end of the feeding pipe (205) is equipped with a collection box (206) located on the upper surface of the bottom plate (1).

6. The multi-stage oil-water separation device according to claim 1, characterized in that: The right side wall of the first water-oil separator (2) is connected to an inlet pipe (2011) located above the filter frame (201).

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