Oil-water separator and method for separating oil and water from kitchen waste

Abstract

The invention relates to the technical field of kitchen waste treatment, in particular to an oil-water separator and a method for separating and treating kitchen waste from oil-water, comprising an equipment housing, a first filter assembly, an oil drain pipe, a buffer assembly, a compensation assembly and a second filter assembly, wherein an oil-water separation tank is provided in the equipment housing, and the oil-water separation tank is arranged in a U-shaped structure. By arranging the oil-water separation tank in the U-shaped structure in the equipment housing, an oil-containing side and an oil-free side are distinguished in the oil-water separation tank, and an oil drain pipe and a buffer assembly are arranged on the oil-containing side. When pouring oil and water, excessive mixing of stratified oil and water in the oil-water separation tank by the falling oil and water is avoided, thereby improving separation efficiency. Meanwhile, when the equipment housing is used, the compensation assembly is used to ensure that the liquid level in the oil-water separation tank can be maintained unchanged, thereby avoiding the problem of fluctuations in the liquid level when pouring oil and water, thereby affecting the quality of oil discharge from the oil drain pipe. The overall device has good filtering effect and is easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen waste treatment, and in particular to an oil-water separator and a method for separating and treating kitchen waste. Background Art

[0002] Kitchen waste is the waste generated in the process of daily life and consumption. It is easy to rot and deteriorate, emit bad odor, and spread bacteria and viruses. Kitchen waste includes food residues and waste oil. In high-oil foods such as hot pot, after consumption, there is still a lot of dirty oil. If the dirty oil is not separated from the oil and water, the oil will clump and adhere to the pipe wall when it is cold, causing problems such as blockage of the sewer pipe.

[0003] In the prior art, constant temperature oil-water separation equipment is used to separate the oil and water from such high-oil food kitchen waste, and then the separation is carried out separately. However, when separating the oil and water, this type of equipment mainly separates the oil and water into layers automatically according to the oil-water density. When the layer containing the oil is higher or lower than the oil outlet, smooth oil discharge cannot be guaranteed. In addition, if too much oil-water mixed liquid is poured in at one time, the water level cannot be kept constant, which can easily cause the internal oil and water to mix again to a large extent, affecting the separation efficiency. Summary of the invention

[0004] The object of the present invention is to provide an oil-water separator and a method for separating oil and water from kitchen waste to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an oil-water separator, the oil-water separator comprising:

[0006] An equipment housing, wherein an oil-water separation tank is provided in the equipment housing, and the oil-water separation tank is arranged in a U-shaped structure;

[0007] A first filter assembly, the first filter assembly is connected to one side of the upper end of the oil-water separation tank, and the first filter assembly includes a food dumping pool and a first filter plate;

[0008] An oil drain pipe, the oil drain pipe is horizontally arranged on a side of the equipment housing close to the food dumping pool;

[0009] A buffer assembly, the buffer assembly is horizontally arranged at one side of the oil-water separation tank, the buffer assembly includes a buffer box, and the horizontal height of the buffer box is higher than the horizontal height of the oil discharge pipe;

[0010] A compensation component, the compensation component is horizontally arranged at the upper end of the oil-water separation tank away from the food dumping pool, and the compensation component includes a compensation water tank and a suction pipe;

[0011] The second filter assembly is arranged at the lower end of the device housing through the installation assembly plug-in, and the second filter assembly includes a collection box, a second filter plate and a connecting seat, and the connecting assembly includes a plurality of pull rods and a plurality of connecting blocks.

[0012] Preferably, the first filter plate is horizontally arranged at the lower end of the food dumping pool, a plurality of first filter holes are symmetrically opened on the first filter plate, and a manual valve is provided on one side of the oil drain pipe.

[0013] Preferably, a support frame is horizontally provided at the upper end of the oil-water separation tank, a buffer box is horizontally provided at the upper end of the support frame, and a cavity is provided in the support frame.

[0014] Preferably, a water pump is vertically connected to the lower end of the compensation water tank, a suction pipe is plugged into one side of the water inlet end of the water pump, and one side of the suction pipe is plugged into the oil-water separation tank.

[0015] Preferably, a flow control valve is connected to the lower end of one side of the compensating water tank, a water supply pipe is connected to one side of the flow control valve, one side of the water supply pipe is inserted into the oil-water separation tank, the water supply pipe is placed in the oil-water separation tank and is connected to the lower end of one side of the buffer box, a circulation pipe is vertically provided at the lower end of the buffer box away from the water supply pipe, the circulation pipe and the water supply pipe are respectively connected to the cavity of the buffer box, and the upper end of the buffer box is arranged in an arc-shaped structure.

[0016] Preferably, a collecting groove is horizontally opened in the center of the lower end of the oil-water separation tank, a sealing groove is horizontally opened at the lower end of the equipment shell and is located on one side of the collecting groove, the cross-sectional area of ​​the sealing groove is larger than the cross-sectional area of ​​the collecting groove, the collecting box is horizontally arranged at the upper end of the connecting seat, the connecting seat is horizontally inserted in the sealing groove, the collecting box is horizontally inserted in the collecting groove, a sealing gasket is horizontally laid on the upper end of the connecting seat, and the upper end of the sealing gasket is arranged to abut against the upper end of the sealing groove.

[0017] Preferably, the second filter plate is tilted at one side of the collecting box, a plurality of second filter holes are symmetrically provided on the second filter plate, a groove is horizontally provided on one side of the collecting tank, a shunt pipe is horizontally provided in the groove, a plurality of recoil pipes are tilted and symmetrically provided on one side of the shunt pipe, the plurality of recoil pipes are respectively directed to the second filter plate, and a suction pipe is placed in an inserting groove on one side of the oil-water separation tank and is connected to one side of the shunt pipe.

[0018] Preferably, the lower end of the device shell is symmetrically provided with yield grooves on both sides near the sealing groove, and a number of spring grooves are symmetrically provided in the device shell between the yield grooves and the sealing grooves, a number of pull rods are horizontally inserted in the number of spring grooves, a number of connecting blocks are horizontally arranged on one side of the pull rods, one side of the connecting block is horizontally movable through the spring grooves and inserted in the sealing grooves, a suction pipe is provided with connecting grooves on one side near the number of connecting blocks, a number of connecting blocks are respectively inserted into the number of connecting grooves on one side, and a number of connecting blocks are inserted into the connecting grooves on one side with inclined surfaces, a number of pull rods are placed in the spring grooves on one side with a connecting spring sleeved thereon, one side of the connecting spring is in contact with one side of the connecting block, a number of pull rods are horizontally movable through the side away from the connecting block and inserted in the yield grooves, and a number of pull rods are placed in the yield grooves on one side and are horizontally provided with a synchronous pull plate.

[0019] Preferably, four telescopic grooves are vertically symmetrically opened on four sides of the lower end of the equipment shell, and telescopic cylinders are vertically arranged in the four telescopic grooves. A clamping plate is horizontally arranged at the lower ends of the four telescopic cylinders, and the upper end of the clamping plate is abutted against the lower end of the connecting seat.

[0020] A method for separating oil from water in kitchen waste, the method for separating oil from water in kitchen waste being applied to an oil-water separator, comprising the following steps:

[0021] Step 1: Heat the clean water in the equipment housing or the compensation water tank through common heating equipment and keep it at about 50 degrees, then start the water pump and send the warm clean water from the oil-water separation tank into the compensation water tank through the suction pipe;

[0022] Step 2: The clean water containing heat in the compensation water tank enters the water delivery pipe after the flow rate is controlled by the flow control valve, and enters the buffer box under the action of gravity, and is discharged from the flow control valve to the clean water layer in the oil-water separation tank. In normal use, the suction efficiency of the suction pipe is the same as the efficiency of the compensation water tank discharged into the oil-water separation tank, and the horizontal height is kept stable;

[0023] Step 3: When pouring oil and water into the tank, the suction power of the suction pipe can be increased, and the water level in the oil-water separation tank will drop at the same time, ensuring that the liquid level can be quickly maintained after the oil and water enter the tank;

[0024] Step 4: When the kitchen waste is poured into the food dumping pool, after the initial filtration of the first filter plate, the oil, water and fine pollutants enter the oil-water separation tank;

[0025] Step 5: After the oil and water enter the oil-water separation tank, they are unloaded and buffered by the arc surface on the upper end of the buffer box, and slide into the oil-water separation liquid in the oil-water separation tank, without excessively mixing the stratified oil and water, thus reducing the standing time and improving the separation efficiency. In addition, the buffer box contains warm flowing water, so the oil and water will not excessively adhere to the surface of the buffer box;

[0026] Step 6: After the oil and water are separated after the first filtration, the fine particles enter the collection box under the action of the arc surface at the lower end of the oil-water separation tank, and then cooperate with the suction of the suction pipe to contact the particle pollutants with the second filter plate to complete the filtration. At the same time, the suction water of the water pump is ensured to be clean. When the second filter plate is blocked, the second filter hole of the second filter plate can be cleaned through the backwash of the suction pipe from the shunt pipe and several backwash pipes to improve the filtration efficiency and convenience;

[0027] Step 7: When it is necessary to remove the collecting box after long-term use, pour out the water in the oil-water separation tank, lift the equipment housing with four telescopic cylinders, and create a certain gap between the clamping plate and the lower end of the equipment housing. Pull the synchronous pull plates on both sides, and several connecting blocks will be separated from the connecting grooves of the connecting seats. Pull out the connecting seats and the collecting box for disposal. For installation, you only need to insert the collecting box and the connecting seat into the equipment housing first, and under the action of the inclined surfaces of several connecting blocks, the connecting blocks are elastically inserted into the connecting grooves to complete the pre-fixation. Then the telescopic cylinder controls the equipment housing to descend, so that the clamping plate and the connecting seat are abutted and pressed, thereby improving the sealing effect and safety of the oil-water separation tank.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] By arranging an oil-water separation tank with a U-shaped structure in the equipment shell, distinguishing an oil-containing side and an oil-free side in the oil-water separation tank, and arranging an oil drain pipe and a buffer component on the oil-containing side, when pouring oil and water, it is prevented that the falling oil and water will excessively mix the stratified oil and water in the oil-water separation tank, thereby improving the separation efficiency. At the same time, when the equipment shell is used, the compensation component is used to ensure that the liquid level in the oil-water separation tank can be maintained unchanged, thereby avoiding the problem of fluctuations in the liquid level when pouring oil and water, which affects the quality of oil discharge from the oil drain pipe. The overall device has good filtering effect and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 Schematic diagram of part A;

[0032] Figure 3 For the present invention Figure 1 Schematic diagram of part B;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 5 It is a schematic diagram of the bottom structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the buffer assembly of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the second filter component of the present invention.

[0037] In the figure: equipment housing 1, oil-water separation tank 2, food dumping pool 3, first filter plate 4, compensation water tank 5, water pump 6, suction pipe 7, oil discharge pipe 8, support frame 9, buffer box 10, flow control valve 11, circulation pipe 12, water supply pipe 13, collection tank 14, collection box 15, second filter plate 16, connecting seat 17, pull rod 18, connecting block 19, connecting groove 20, connecting spring 21, synchronous pull plate 22, telescopic cylinder 23, clamping plate 24, sealing gasket 25, shunt pipe 26, recoil pipe 27. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Please see attached Figure 1-7 , this application provides the following five preferred embodiments.

[0040] Embodiment 1

[0041] An oil-water separator comprises an equipment housing 1, an oil-water separation tank 2 is provided in the equipment housing 1, the oil-water separation tank 2 is arranged in a U-shaped structure, a first filter assembly is connected and arranged on one side of the upper end of the oil-water separation tank 2, the first filter assembly comprises a food dumping pool 3 and a first filter plate 4, an oil drain pipe 8 is horizontally arranged on one side of the equipment housing 1 close to the food dumping pool 3, and performs solid-liquid separation of a food mixture;

[0042] An oil-water separator disclosed in the second embodiment of the present invention has a structure that is basically the same as that in the first embodiment, except that: when oil and water are poured into the oil-water separation tank 2, excessive mixing of oil and water occurs inside the oil-water separation tank 2, a buffer component is horizontally arranged at one side of the oil-water separation tank 2, the buffer component includes a buffer box 10, and the horizontal height of the buffer box 10 is higher than the horizontal height of the oil drain pipe 8, a support frame 9 is horizontally arranged at the upper end of the oil-water separation tank 2, the buffer box 10 is horizontally arranged at the upper end of the support frame 9, and a cavity is arranged in the support frame 9, a support frame 9 is horizontally arranged at the upper end of the oil-water separation tank 2, the buffer box 10 is horizontally arranged at the upper end of the support frame 9, and a cavity is arranged in the support frame 9;

[0043] The oil-water separator disclosed in the third embodiment of the present invention has a structure that is basically the same as that in the second embodiment, except that: the height of the clean water level in the oil-water separation tank 2 is controlled, the compensation component is horizontally arranged at the upper end of the oil-water separation tank 2 away from the side of the food dumping pool 3, and the compensation component includes a compensation water tank 5 and a suction pipe 7, the lower end of the compensation water tank 5 is vertically connected to a water pump 6, the suction pipe 7 is plugged into the side of the water inlet end of the water pump 6, and one side of the suction pipe 7 is plugged into the lower end of the compensation water tank 5 provided in the oil-water separation tank 2. A flow control valve 11 is provided, and a water supply pipe 13 is connected to one side of the flow control valve 11. One side of the water supply pipe 13 is inserted into the oil-water separation tank 2. The water supply pipe 13 is placed in the oil-water separation tank 2 and is connected to the lower end of one side of the buffer box 10. A circulation pipe 12 is vertically provided on the lower end of the buffer box 10 away from the water supply pipe 13. The circulation pipe 12 and the water supply pipe 13 are respectively connected to the cavity of the buffer box 10, and the upper end of the buffer box 10 is arranged in an arc structure. The height of the compensation water tank 5 is higher than the height of the buffer box 10.

[0044] The oil-water separator disclosed in the fourth embodiment of the present invention has a structure that is basically the same as that in the third embodiment, except that: the clean water is filtered to improve the service life of the water pump 6, the second filter assembly is arranged by plugging the lower end of the device housing 1 with the mounting assembly, and the second filter assembly includes a collection box 15, a second filter plate 16 and a connecting seat 17, the connecting assembly includes a plurality of pull rods 18 and a plurality of connecting blocks 19, a collection groove 14 is horizontally opened at the center of the lower end of the oil-water separation tank 2, and a sealing groove is horizontally opened at the lower end of the device housing 1 on one side of the collection groove 14, and the cross-sectional area of ​​the sealing groove is large. The cross-sectional area of ​​the collecting tank 14 is such that the collecting box 15 is horizontally arranged at the upper end of the connecting seat 17, the connecting seat 17 is horizontally inserted in the sealing groove, the collecting box 15 is horizontally inserted in the collecting tank 14, a sealing gasket 25 is horizontally laid on the upper end of the connecting seat 17, and the upper end of the sealing gasket 25 is arranged in contact with the upper end of the sealing groove, the second filter plate 16 is obliquely arranged on one side of the collecting box 15, and a plurality of second filter holes are symmetrically opened on the second filter plate 16, a groove is horizontally opened on one side of the collecting tank 14, a shunt pipe 26 is horizontally arranged in the groove, and a plurality of recoil pipes 27 are obliquely and symmetrically arranged on one side of the shunt pipe 26, and a plurality of recoil pipes 27 are arranged on one side of the recoil pipe 26. The flushing pipes 27 are respectively directed to the second filter plates 16, and the suction pipe 7 is placed in a plug-in groove on one side of the oil-water separation tank 2 and is connected to one side of the diverter pipe 26. The lower end of the equipment housing 1 is symmetrically provided with a clearance groove on both sides near the sealing groove. A plurality of spring grooves are symmetrically provided between the clearance groove and the sealing groove in the equipment housing 1. A plurality of pull rods 18 are respectively horizontally plugged in the plurality of spring grooves. A plurality of connecting blocks 19 are respectively horizontally provided on one side of the pull rods 18. One side of the connecting block 19 is horizontally movable and penetrates the spring groove and is plugged into the sealing groove. The suction pipe 7 is provided with a connecting groove on one side near the plurality of connecting blocks 19. Groove 20, several connecting blocks 19 are respectively inserted into several connecting grooves 20 on one side, several connecting blocks 19 are inserted into the connecting grooves 20 and the lower end side surfaces are all arranged with inclined surfaces, several pull rods 18 are placed in the spring groove and one side is sleeved with a connecting spring 21, one side of the connecting spring 21 is arranged in contact with one side of the connecting block 19, several pull rods 18 are horizontally movable away from the side of the connecting block 19 and inserted into the make way groove, several pull rods 18 are placed in the make way groove and one side is horizontally provided with a synchronous pull plate 22, the internal structure of the oil-water separation tank 2 facilitates the sliding of particulate pollutants and facilitates the filtering of clean water.

[0045] An oil-water separator disclosed in the fifth embodiment of the present invention has a structure that is basically the same as that in the fourth embodiment, except that four telescopic grooves are vertically symmetrically provided on the four sides of the lower end of the equipment shell 1, and telescopic cylinders 23 are vertically provided in the four telescopic grooves. A clamping plate 24 is horizontally provided at the lower ends of the four telescopic cylinders 23, and the upper end of the clamping plate 24 is abutted against the lower end of the connecting seat 17, which is convenient for cleaning the pollutants in the collecting box 15, easy to disassemble and install, and reliable structural sealing.

[0046] A method for separating oil and water from kitchen waste:

[0047] The clean water in the equipment housing 1 or the compensation water tank 5 is heated by common heating equipment and maintained at about fifty degrees. Then the water pump 6 is started to send the warm clean water from the oil-water separation tank 2 into the compensation water tank 5 through the suction pipe 7. The clean water containing heat in the compensation water tank 5 enters the water delivery pipe 13 after the flow is controlled by the flow control valve 11, and enters the buffer box 10 under the action of gravity, and the clean water layer in the oil-water separation tank 2 is discharged from the flow control valve 11. In normal use, the suction efficiency of the suction pipe 7 is the same as the efficiency of the compensation water tank 5 discharged into the oil-water separation tank 2, and the horizontal height is kept stable. The liquid level is sensed by the liquid level sensor. , the liquid levels on both sides of the oil-water separation tank 2 are always the same, the difference is that there is an oil layer on one side and not on the other side. When pouring oil and water in, the suction power of the suction pipe 7 can be increased, and the water level in the oil-water separation tank 2 drops at the same time, ensuring that after the oil and water enter, the liquid level height can be quickly maintained. When the kitchen waste is poured into the food dumping pool 3, after the preliminary filtration of the first filter plate 4, the oil, water and fine pollutants enter the oil-water separation tank 2. After the oil and water enter the oil-water separation tank 2, under the action of the arc surface at the upper end of the buffer box 10, the force is unloaded and buffered, and it slides into the oil-water separation liquid of the oil-water separation tank 2, and the stratified oil and water will not be excessively mixed, the static time is reduced, and the separation efficiency is improved. rate, and the buffer box 10 is filled with warm flowing water, the oil and water will not excessively adhere to the surface of the buffer box 10, and after the oil and water are separated, the fine particles of the oil and water after a layer of filtration enter the collection box 15 under the action of the arc surface at the lower end of the oil-water separation tank 2, and then cooperate with the suction of the suction pipe 7 to contact the particle pollutants with the second filter plate 16 to complete the filtration, while ensuring that the suction water of the water pump 6 is clean. When the second filter plate 16 is blocked, the second filter hole of the second filter plate 16 can be cleaned from the shunt pipe 26 and a plurality of recoil pipes 27 through the backwash of the suction pipe 7, thereby improving the filtration efficiency and convenience. When the collection box 15 needs to be disassembled for a long time, the oil and water The water in the separation tank 2 is dumped, and the four telescopic cylinders 23 lift the equipment shell 1. A certain gap is generated between the clamping plate 24 and the lower end of the equipment shell 1, and the synchronous pull plates 22 on both sides are pulled. Several connecting blocks 19 are separated from the connecting grooves 20 of the connecting seat 17 respectively, and the connecting seat 17 and the collecting box 15 are pulled out for processing. For installation, you only need to insert the collecting box 15 and the connecting seat 17 into the equipment shell 1 first, and under the action of the inclined surfaces of several connecting blocks 19, the connecting block 19 is elastically inserted into the connecting groove 20 to complete the pre-fixation, and then the telescopic cylinder 23 controls the equipment shell 1 to descend, so that the clamping plate 24 is abutted and pressed against the connecting seat 17, thereby improving the sealing effect and safety of the oil-water separation tank 2.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-water separator, characterized in that: The oil-water separator comprises: An equipment housing (1), wherein an oil-water separation tank (2) is provided in the equipment housing (1), and the oil-water separation tank (2) is arranged in a U-shaped structure; A first filter assembly, the first filter assembly being connected to one side of the upper end of the oil-water separation tank (2), the first filter assembly comprising a food dumping pool (3) and a first filter plate (4); An oil drain pipe (8), the oil drain pipe (8) being horizontally arranged on a side of the equipment housing (1) close to the food dumping pool (3); A buffer assembly, the buffer assembly being horizontally arranged on one side of the oil-water separation tank (2), the buffer assembly comprising a buffer box (10), and the horizontal height of the buffer box (10) is higher than the horizontal height of the oil discharge pipe (8); A compensation component, the compensation component being horizontally arranged on a side of the upper end of the oil-water separation tank (2) away from the food dumping pool (3), and comprising a compensation water tank (5) and a suction pipe (7); A second filter assembly, the second filter assembly being arranged by plugging the mounting assembly into the lower end of the device housing (1), and the second filter assembly comprising a collecting box (15), a second filter plate (16) and a connecting seat (17), and the connecting assembly comprising a plurality of pull rods (18) and a plurality of connecting blocks (19); The lower end of the compensation water tank (5) is vertically connected to a water pump (6), a suction pipe (7) is plugged into one side of the water inlet end of the water pump (6), and one side of the suction pipe (7) is plugged into and placed in the oil-water separation tank (2); A flow control valve (11) is connected to the lower end of one side of the compensation water tank (5), and a water supply pipe (13) is connected to the other side of the flow control valve (11). One side of the water supply pipe (13) is inserted into the oil-water separation tank (2). One side of the water supply pipe (13) placed in the oil-water separation tank (2) is connected to the lower end of one side of the buffer box (10). A circulation pipe (12) is vertically provided at the lower end of the buffer box (10) away from the water supply pipe (13). The circulation pipe (12) and the water supply pipe (13) are respectively connected to the cavity of the buffer box (10), and the upper end of the buffer box (10) is arranged in an arc-shaped structure. The height of the compensation water tank (5) is higher than the height of the buffer box (10); The second filter plate (16) is arranged obliquely on one side of the collection box (15); a plurality of second filter holes are symmetrically provided on the second filter plate (16); a groove is horizontally provided on one side of the collection tank (14); a shunt pipe (26) is horizontally provided in the groove; a plurality of recoil pipes (27) are obliquely and symmetrically provided on one side of the shunt pipe (26); the plurality of recoil pipes (27) are respectively arranged to point to the second filter plate (16); and a suction pipe (7) is placed in the plug-in groove on one side of the oil-water separation tank (2) and is connected to one side of the shunt pipe (26).

2. An oil-water separator according to claim 1, characterized in that: The first filter plate (4) is horizontally arranged at the lower end of the food dumping pool (3), a plurality of first filter holes are symmetrically opened on the first filter plate (4), and a manual valve is provided on one side of the oil drain pipe (8).

3. An oil-water separator according to claim 2, characterized in that: A support frame (9) is horizontally arranged at the upper end of the oil-water separation tank (2), a buffer box (10) is horizontally arranged at the upper end of the support frame (9), and a cavity is arranged in the support frame (9).

4. An oil-water separator according to claim 3, characterized in that: A collecting groove (14) is horizontally provided at the center of the lower end of the oil-water separation groove (2); a sealing groove is horizontally provided at the lower end of the equipment housing (1) and is located on one side of the collecting groove (14) and is connected thereto; the cross-sectional area of ​​the sealing groove is larger than the cross-sectional area of ​​the collecting groove (14); a collecting box (15) is horizontally provided at the upper end of a connecting seat (17); the connecting seat (17) is horizontally inserted into the sealing groove; the collecting box (15) is horizontally inserted into the collecting groove (14); a sealing gasket (25) is horizontally provided at the upper end of the connecting seat (17); the upper end of the sealing gasket (25) is arranged to abut against the upper end of the inner portion of the sealing groove.

5. The oil-water separator according to claim 4, characterized in that: The lower end of the device housing (1) is symmetrically provided with clearance grooves near both sides of the sealing groove, and a plurality of spring grooves are symmetrically provided in the device housing (1) between the clearance grooves and the sealing groove. A plurality of pull rods (18) are horizontally inserted in the plurality of spring grooves, and a plurality of connecting blocks (19) are horizontally provided on one side of the pull rods (18). One side of the connecting block (19) is horizontally movable and penetrates the spring groove and is inserted in the sealing groove. A connection groove (20) is provided on one side of the suction pipe (7) near the plurality of connecting blocks (19). The plurality of connecting blocks (19) are horizontally provided on one side of the suction pipe (7). ) are respectively inserted into a plurality of connection grooves (20) on one side, a plurality of connection blocks (19) are inserted into the connection grooves (20) and the lower end side surfaces are all arranged with inclined surfaces, a plurality of pull rods (18) are placed in the spring grooves and are sleeved with connection springs (21) on one side, and one side of the connection springs (21) is arranged in contact with one side of the connection block (19), a plurality of pull rods (18) are placed away from the connection block (19) and are inserted into the clearance grooves horizontally and movably, and a plurality of pull rods (18) are placed in the clearance grooves and are horizontally provided with a synchronous pull plate (22) on one side.

6. The oil-water separator according to claim 5, characterized in that: Four telescopic slots are vertically symmetrically provided on four sides of the lower end of the device housing (1), and telescopic cylinders (23) are vertically provided in the four telescopic slots. A clamping plate (24) is horizontally provided at the lower ends of the four telescopic cylinders (23), and the upper end of the clamping plate (24) is arranged to abut against the lower end of the connecting seat (17).

7. A method for separating oil and water from kitchen waste, characterized in that: The method for separating oil and water from kitchen waste is applied to the oil-water separator according to any one of claims 1 to 6, comprising the following steps: Step 1: Use common heating equipment to heat the clean water in the equipment housing (1) or the compensation water tank (5) and keep it at 50 degrees, then start the water pump (6) to send the warm clean water from the oil-water separation tank (2) into the compensation water tank (5) through the suction pipe (7); Step 2: The clean water containing heat in the compensation water tank (5) enters the water delivery pipe (13) after the flow rate is controlled by the flow control valve (11), and enters the buffer box (10) under the action of gravity, and is discharged from the clean water layer in the oil-water separation tank (2) through the flow control valve (11). During normal use, the suction efficiency of the suction pipe (7) is the same as the efficiency of the water discharged from the compensation water tank (5) into the oil-water separation tank (2), and the horizontal height is kept stable; Step 3: When pouring oil and water into the tank, the suction power of the suction pipe (7) can be increased, and the water level in the oil-water separation tank (2) can be lowered at the same time, ensuring that the liquid level can be quickly maintained after the oil and water enter the tank; Step 4: When the food waste is poured into the food dumping pool (3), after preliminary filtration by the first filter plate (4), the oil, water and fine pollutants enter the oil-water separation tank (2); Step 5: After the oil and water enter the oil-water separation tank (2), the oil and water are unloaded and buffered under the action of the arc surface at the upper end of the buffer box (10), and slide into the oil-water separation liquid in the oil-water separation tank (2), without excessively mixing the stratified oil and water, thus reducing the standing time and improving the separation efficiency. In addition, the buffer box (10) contains warm flowing water, so the oil and water will not excessively adhere to the surface of the buffer box (10); Step 6: After the oil and water are separated after the first filtration, the fine particles enter the collection box (15) under the action of the arc surface at the lower end of the oil-water separation tank (2), and then cooperate with the suction of the suction pipe (7) to contact the particle pollutants with the second filter plate (16) to complete the filtration. At the same time, it is ensured that the suction water of the water pump (6) is clean. When the second filter plate (16) is blocked, the second filter hole of the second filter plate (16) can be cleaned through the backwash of the suction pipe (7) from the diverter pipe (26) and a plurality of backwash pipes (27), thereby improving the filtration efficiency and convenience; Step 7: When the collecting box (15) needs to be removed after long-term use, the water in the oil-water separation tank (2) is dumped, and the four telescopic cylinders (23) lift the device housing (1), so that a certain gap is formed between the pressing plate (24) and the lower end of the device housing (1), and the synchronous pull plates (22) on both sides are pulled, so that the plurality of connecting blocks (19) are respectively separated from the connecting grooves (20) of the connecting seat (17), and the connecting seat (17) and the collecting box (15) are taken out for disposal. For installation, it is only necessary to first insert the collecting box (15) and the connecting seat (17) into the device housing (1), and under the action of the inclined surfaces of the plurality of connecting blocks (19), the connecting block (19) is elastically inserted into the connecting groove (20) to complete the pre-fixation, and then the telescopic cylinder (23) controls the device housing (1) to descend, so that the pressing plate (24) and the connecting seat (17) are abutted and pressed, thereby improving the sealing effect and use safety of the oil-water separation tank (2).

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