CN109011713B

CN109011713B - Stable oil-water separation equipment in automobile recovery processing

Info

Publication number: CN109011713B
Application number: CN201811004027.2A
Authority: CN
Inventors: 周孝银
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-30
Filing date: 2018-08-30
Publication date: 2021-03-12
Anticipated expiration: 2038-08-30
Also published as: CN109011713A

Abstract

The invention discloses stable oil-water separation equipment in automobile recovery treatment, which comprises a separation box and a cover plate arranged at the top of the separation box, wherein the separation box comprises an upper part and a lower part, and a separation pool is arranged at the lower part of the separation box; the cover plate comprises a left cover plate and a right cover plate, and the left cover plate and the right cover plate can be opened and closed; a supporting table is arranged at the top of the upper part of the separation box, a driving piece for driving the left cover plate and the right cover plate to move is arranged on the supporting table, and limiting plates are respectively arranged on two sides of the left cover plate and the right cover plate; when apron closed each other and form the cooperation about driving piece drive, through the cooperation effect of apron and limiting plate about, apron complex stability about increasing makes about apron can more effectual cooperation be in the same place, increases the stability of equipment.

Description

Stable oil-water separation equipment in automobile recovery processing

Technical Field

The invention belongs to the technical field of scraped car recovery processing, and particularly relates to stable oil-water separation equipment in car recovery processing.

Background

At present, the holding amount of automobiles with various purposes and brands in governments, enterprises, units and families is increasing all the time, and accordingly, the damage, abandonment and scrapping of the automobiles are faster and faster, so that a large amount of abandoned automobiles are rapidly increased; on the one hand, these waste cars are piled up or scattered in various environments to cause direct or potential damage to the global ecological environment, and on the other hand, various metal and nonmetal mineral resources are gradually exhausted as essential raw materials for continuous technological and economic development, thereby seriously threatening the sustainable development of the technology and the economy. In order to solve the increasingly sharp environmental and supply-demand contradictions, recycling economic enterprises in China have been developed, some of which disassemble waste automobiles which can cause harm to the ecological environment of the earth, recover useful materials in the waste automobiles and refurbish parts for recycling, so that a new prospect is opened for environmental protection and recycling economy.

When the waste oil liquid in the scraped car is recycled, the waste oil liquid is generally doped with moisture, and specific equipment is needed to separate oil from water, so that dry oil liquid can be obtained conveniently. When the existing equipment carries out oil-water separation on mixed liquid, a movable assembly in the equipment cannot carry out good limiting, and the equipment is easy to shake to influence the normal operation of the equipment.

Disclosure of Invention

The invention provides a stable oil-water separation device in automobile recovery processing, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the stable oil-water separation equipment in the automobile recovery treatment comprises a separation box and a cover plate arranged at the top of the separation box, wherein the separation box comprises an upper part and a lower part, and a separation pool is arranged at the lower part of the separation box; the cover plate comprises a left cover plate and a right cover plate, and the left cover plate and the right cover plate can be opened and closed; a supporting table is arranged at the top of the upper part of the separation box, a driving piece for driving the left cover plate and the right cover plate to move is arranged on the supporting table, and limiting plates are respectively arranged on two sides of the left cover plate and the right cover plate; when apron closed each other and form the cooperation about driving piece drive, through the cooperation effect of apron and limiting plate about, apron complex stability about increasing makes about apron can more effectual cooperation be in the same place, increases the stability of equipment.

Preferably, the left cover plate and the right cover plate are respectively provided with a limiting component matched with the limiting plate; through mutually supporting of limiting plate and spacing subassembly, the stability of apron mutually supporting about increasing, the cooperation that the apron can be more stable about making is in the same place.

Preferably, one side of the limiting plate is provided with an inclined plane, and the inclined plane is provided with a limiting hole; the arrangement of the inclined plane enables the limiting component to be matched with the limiting hole by means of a mechanical principle to play a limiting role, so that the equipment cost is reduced, and the energy consumption of the equipment is reduced.

Preferably, the limiting assembly comprises a third movable cavity arranged on the cover plate, a limiting spring arranged in the third movable cavity and a limiting lug arranged at the top of the limiting spring, and the limiting lug is matched with the limiting hole; the limiting convex block can slide along the inclined plane on the limiting plate under the action of the limiting spring, so that the elongation of the limiting convex block is changed, and the limiting convex block is convenient to be matched with the limiting hole to limit the left cover plate and the right cover plate.

Preferably, the inclined plane is further provided with an anti-falling hole, and the anti-falling hole is formed in one side of the limiting hole; increase the cooperation effect of limiting plate and spacing subassembly through the anticreep hole, avoid spacing lug to fall out from spacing hole, it is downthehole to enter into the anticreep when making spacing lug fall out from spacing hole, plays the guard action to spacing subassembly.

Preferably, the side wall of the upper part of the separation box is obliquely arranged, a water filtering bag is arranged in the lower part of the separation box, a clamping jaw assembly used for fixing the water filtering bag is arranged at the lower part of the separation box, and the air pump can drive the clamping jaw assembly to move up and down; the clamping jaw assembly is driven to move upwards under the action of the air pump, so that the clamping jaw assembly drives the water filtering bag to move upwards, a part of oil-water mixture in the separation tank is fished up, the water filtering bag is kept still for a period of time, water in the oil-water mixture is filtered under the action of the water filtering bag, oil in the mixed liquid is convenient to recover, and the oil recovery effect is improved; the air pump can be used as a power source of the clamping jaw assembly after the aeration treatment is carried out in the separation tank, so that the effect of the air pump is maximized, and the energy consumption of equipment is reduced.

Preferably, an aeration disc is arranged at the bottom of the separation tank, a first gas pipe is arranged in the aeration disc, a second gas pipe communicated with the first gas pipe is arranged at the bottom of the separation tank, and a flow cutoff assembly is arranged in the second gas pipe; the air pump leads the air flow into the aeration disc through the second air delivery pipe, and bubbles are led into the mixed liquid in the separation tank under the action of the aeration pipe, so that the bubbles are attached to oil drops to drive the oil drops to vertically rise, the rising speed of the oil drops is increased, the oil and water can be conveniently and quickly layered, and the oil-water separation efficiency is improved; through the cooperation of cutout subassembly and air pump, make the air pump enough promote the clamping jaw rent to do the rising motion, can provide the bubble for in the separation tank again, make the effect of air pump maximize, reduce the energy of equipment and disappear.

Preferably, a third air conveying pipe is arranged on the bottom surface of the lower part of the separation box and is communicated with the second air conveying pipe, a first movable cavity is arranged on the side wall of the separation box, a fourth air conveying pipe is arranged at the bottom of the first movable cavity and is communicated with the third air conveying pipe; through mutually supporting between the gas-supply pipe, the air current with the air pump output of air pump is leading-in to first activity intracavity, promotes the up-movement of clamping jaw subassembly through the effect of air current, makes the more stable rise of clamping jaw subassembly, drives the water filtering bag and rises from mixing the liquid, promotes the separation effect to fluid.

The invention has the following advantages: when apron closed each other and form the cooperation about driving piece drive, through the cooperation effect of apron and limiting plate about, apron complex stability about increasing makes about apron can more effectual cooperation be in the same place, increases the stability of equipment.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a schematic structural diagram of the limiting plate of the invention.

Fig. 5 is a schematic structural view of the limiting assembly of the present invention.

Fig. 6 is a schematic view of the engagement of the pusher block assembly and the jaw assembly of the present invention.

Fig. 7 is a schematic structural view of the aeration disc of the present invention.

Fig. 8 is a schematic structural view of the bottom of the aeration disc and the separation tank of the present invention.

Fig. 9 is an enlarged view of a portion a in fig. 2.

Fig. 10 is an enlarged view of fig. 8 at B.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-10, a stable oil-water separation device in an automobile recovery process comprises a separation tank 1 and a cover plate 4 arranged on the top of the separation tank 1, wherein the separation tank 1 comprises a separation tank upper part 11 and a separation tank lower part 12, and the separation tank lower part 12 is provided with a separation pool 125; the cover plate 4 comprises a left cover plate and a right cover plate, and the left cover plate and the right cover plate can be opened and closed; a support table 13 is arranged at the upper part of the separation box, the cover plate is placed on the support table, support force is provided for the cover plate through the support plate, a transmission groove 41 is arranged at the bottom of the cover plate, first transmission teeth are arranged at the bottom of the transmission groove, a driving motor is arranged in the support table, a transmission wheel 131 is sleeved on an output shaft of the driving motor, second transmission teeth matched with the first transmission teeth are arranged on the transmission wheel, the driving wheel is controlled through the driving motor, the cover plate is driven to move, and the left cover plate and the right cover plate are opened and closed; the side wall of the upper part 11 of the separation box is obliquely arranged, the section of the top of the upper part of the separation box is smaller than that of the top, and the top of the side wall of the upper part of the separation box inclines inwards; a water filtering bag 21 is arranged in the lower part 12 of the separation box, the water filtering bag is made of a semipermeable membrane material, and the water filtering bag only allows water flow to pass but not oil to pass; the lower part 12 of the separation box is provided with a clamping jaw assembly for fixing the water filtering bag 21, and the bottom of the separation box 1 is provided with an air cylinder 14 for driving the clamping jaw assembly to do lifting motion.

The bottom of the separation tank 125 is provided with an aeration disc 31, the aeration disc 31 is provided with a plurality of aeration pipes 32, the aeration pipes are provided with a plurality of aeration holes 321, the aeration pipes are uniformly arranged on the aeration disc, and the aeration holes are uniformly arranged on the aeration pipes; through the arrangement of the plurality of aeration pipes and the plurality of aeration holes, the range of bubbles is increased, more bubbles are in contact with oil drops to drive the oil drops to float upwards quickly, and the oil-water separation efficiency is improved; the aeration disc 31 is internally provided with a first air pipe 311, the bottom of the separation tank 125 is provided with a second air pipe 15 communicated with the first air pipe 311, the aeration disc is internally provided with a plurality of second vent holes 312, the second vent holes are communicated with the first air pipe, the second air pipe 15 is internally provided with a flow stopping assembly, and an air outlet pipe of the air pump is communicated with the second air pipe.

The driving motor drives the left cover plate and the right cover plate to separate, so that the left cover plate and the right cover plate are separated from each other to form an opening, mixed liquid is added into the separation box from the top of the separation box, the mixed liquid falls into the separation tank, the air pump starts to work to convey air into the second air conveying pipe, the air enters the first air conveying pipe through the second air conveying pipe and enters the aeration pipe through the second vent hole, the air is extruded in a small bubble mode through the action of the aeration hole, bubbles quickly float up in the mixed liquid, the bubbles are combined with oil drops in the mixed liquid in the floating up process, the quick oil drops are driven to move towards the water surface to quickly form and separate oil and water, preliminary layering treatment is carried out on the oil-water mixture, and most of oil rises to the top surface of the mixed liquid under the; an oil pumping pipe extends into the separation tank from the top of the separation tank, oil on the upper layer of the separation tank is sucked from the separation tank, the oil pumping pipe is pumped after the oil pumping pipe sucks the oil on the upper layer, the clamping jaw assembly is driven to move upwards under the action of an air pump, and the clamping jaw assembly is driven when being lifted; the water filtering bag rises from the separation tank, the water filtering bag collects part of mixed liquid in the water filtering bag when rising from the bottom of the tank, most of water in the water filtering bag drops from the water filtering bag at the moment, the residual oil in the lower water layer is collected by the water filtering bag and moves up along with the water filtering bag, the water filtering bag rises to the top of the separation tank under the action of the air pump, the water filtering bag is suspended above the separation tank to filter the water in the water filtering bag, the water is infiltrated from the water filtering bag under the action of gravity, the dry oil is convenient to obtain from the water filtering bag, the collection effect of the oil is improved, and the waste of the oil is avoided.

A third air delivery pipe 122 is arranged on the bottom surface of the lower part 12 of the separation box, the third air delivery pipe 122 is communicated with the second air delivery pipe 15, a first movable cavity 121 is arranged on the side wall of the separation box 1, a fourth air delivery pipe 123 is arranged at the bottom of the first movable cavity 121, and the fourth air delivery pipe 123 is communicated with the third air delivery pipe 122; a third vent 124 is arranged at the bottom of the movable cavity, one end of the third vent is communicated with the first movable cavity, and the other end of the third vent is communicated with a fourth gas pipe; a sliding block assembly is arranged in the first movable cavity 121 and is matched with the clamping jaw assembly; after preliminary treatment, mixed liquid in the separation tank, under the cooperation of cutout subassembly, make the air current of air pump enter into in the third gas transmission pipe, it is gaseous to enter into in the fourth gas transmission pipe via the third gas transmission pipe, thereby enter into first activity intracavity, along with gaseous entering into first activity intracavity, make the atmospheric pressure of first activity chamber bottom increase, it up-moves to push slider assembly under atmospheric pressure's effect, drive clamping jaw subassembly up-moving, thereby rise the water filtration bag from the separation tank bottom, further collection is carried out to fluid in the water layer.

The flow stopping assembly comprises a block 152 arranged in the second gas pipe 15 and push plate assemblies penetrating through the block 152, a second movable cavity 1521 is arranged in the block 152, a connecting spring 1522 is arranged in the second movable cavity 1521, and the push plate assemblies are divided into two groups and fixedly connected through the connecting spring 1522; the push plate assembly comprises a push plate 1523 arranged in the second movable cavity 1521, a first connecting rod 154 arranged on the push plate 1523 and a first sealing block 153 arranged on the first connecting rod 154, and the push plate can move along the inner wall of the second movable cavity; a limiting plate 1221 is arranged in the third air pipe 122, and a through hole 1222 matched with the first sealing block 153 is arranged on the limiting plate 1221; a sealing ring 151 is arranged in the second air conveying pipe 15; the top of the first sealing block is of an arc-shaped structure, and the bottom surface of the sealing ring is of an arc-shaped structure matched with the top of the push plate; a limiting block 155 is arranged on the inner wall of the second gas transmission pipe.

When the air pump is in an out-of-operation state, the blocking block is arranged on the inner wall of the third air delivery pipe, the first sealing block is matched with the through hole, and the first sealing block is pressed on the limiting plate under the action of the connecting spring to seal the through hole, so that the third air delivery pipe is blocked, and the third air delivery pipe is in a closed state; after the mixed liquid enters the separation tank, the air pump starts to work and introduces air into the second air delivery pipe, and due to the blocking effect of the cutoff assembly on the third air delivery pipe, all air flow of the air pump enters the first air delivery pipe, bubbles are discharged through the aeration pipe, and the oil-water separation efficiency is improved; after the preliminary separation of the mixed liquid is completed, the output power of the air pump is increased, the air displacement of the air pump is increased, the blocking block is pushed to move upwards under the action of air pressure, the first sealing block moves towards one side of the blocking block along the top of the sealing ring through the mutual matching of the arc-shaped structure at the top of the first sealing block and the arc-shaped structure at the bottom of the sealing ring, so that the push plate enters the second movable cavity, the first sealing block is contacted with the blocking block until the blocking block is pushed to be contacted with the limiting block, the blocking block cannot move upwards continuously, at the moment, the blocking block, the limiting block and the sealing ring are mutually matched to play a sealing role on the first air conveying pipe, so that the air output by the air pump enters the third air conveying pipe, the air is introduced into the first movable cavity through the third air conveying pipe, the air pressure at the bottom of the first movable cavity is rapidly increased, and the sliding block assembly is, thereby raise the drainage bag from the separation tank, carry out further processing to the mixed liquid, promote the separation effect to the mixed liquid.

The sliding block assembly comprises a pushing block 24 arranged in the first movable cavity 121, a sliding plate 23 arranged on the pushing block 24 and a sliding block 231 arranged on the side wall of the sliding plate 23; a first sliding groove 111 matched with the sliding plate 23 is arranged on the side wall of the upper part 11 of the separation box, and a second sliding groove 112 matched with the sliding block 231 is arranged on the side wall of the first sliding groove 111; the sliding block assembly provides a good supporting effect for the clamping jaw assembly by the limiting and supporting effect of the sliding plate through the matching of the sliding chute and the sliding block, so that the reliability of the equipment is improved, and the service life of the equipment is prolonged; the sliding plate is obliquely fixed on the pushing block, the inclination of the sliding plate and the pushing block is the same as that of the upper part of the separation box, so that the sliding plate can conveniently enter the first sliding groove and move along the inner wall of the upper part of the separation box; the push block can move along the inner wall of the first movable cavity under the action of air pressure; the pushing block assembly is driven to move by air pressure, so that the bottom of the pushing block is stressed uniformly, the movement of the pushing block is changed to be more stable, and the sliding plate is stably inserted into the first sliding groove to lift the water filtering bag from the separation tank.

The clamping jaw assembly comprises a second connecting rod 25 arranged on the sliding plate 23 and a connecting block 22 fixedly connected with the second connecting rod 25, a magnetic block 252 is arranged on the second connecting rod 25, and a fixing groove 221 matched with the magnetic block 252 is arranged on the connecting block 22; the fixing groove is made of ferromagnetic materials, when the connecting block is matched with the second connecting rod, the magnetic block is inserted into the fixing groove, the connecting effect of the fixing groove and the magnetic block is improved under the action of magnetic force, and the fixing effect of the connecting block and the second connecting rod is improved; the bottom of the connecting block 22 is provided with a connecting groove 223, the second connecting rod 25 penetrates through the connecting groove 223, and the connecting block is provided with a side lug 222 which provides an acting point for the mechanical claw, so that the water filtering bag and oil liquid can be conveniently taken out of the separation box after the water filtering bag filters water; when the sliding block component drives the clamping jaw component to ascend to the top of the separation box, the connecting block penetrates through the separation box.

The left cover plate and the right cover plate are in an open state when primary treatment is carried out in the separation tank, so that gas introduced into the separation tank can be conveniently and quickly discharged from the separation tank, and the damage to equipment caused by overlarge pressure intensity in the separation tank is prevented; after the mixed liquid in the separation tank is subjected to primary treatment, the air flow output by the air pump is introduced into the first movable cavity under the action of the cutoff assembly, the push block assembly is pushed to move upwards, the push block assembly drives the clamping jaw assembly to move upwards until the push block moves to be in contact with the top of the first movable cavity, the tops of the connecting blocks are arranged outside the separation box at the moment, and the connecting blocks on the left side and the right side are in contact with each other under the action of the side wall of the upper part of the separation box to form matching; the driving motor drives the driving wheel to rotate, so that the left cover plate and the right cover plate move relatively, the left cover plate and the right cover plate move oppositely until the connecting block is clamped between the left cover plate and the right cover plate, and the left cover plate and the right cover plate play a certain supporting role on the water filtering bag; after moisture in the drainage bag is accomplished by the filtering, snatch the connecting block through the manipulator, the manipulator snatchs the auris on one's side, thereby play fixed effect of snatching to the connecting block, driving motor drive wheel rotates this moment, apron looks alternate segregation about making the drive wheel drive, thereby make the apron lose the clamping action to the connecting block, through the vertical up pulling connecting block of manipulator, take off the connecting block from the second connecting rod, be convenient for collect fluid in the drainage bag.

The pushing block 24 is provided with a first vent hole 241, the sliding plate 23 is provided with a fifth gas pipe 232 communicated with the first vent hole 241, the second connecting rod 25 is provided with a sixth gas pipe 251 communicated with the fifth gas pipe 232, the connecting block 22 is provided with a seventh gas pipe 224 communicated with the sixth gas pipe 251, and the seventh gas pipe 224 is communicated with the inside of the water filtration bag 21; be equipped with seal assembly in the fifth gas-supply pipe 232, seal assembly is including locating third connecting rod 2321 on the fifth gas-supply pipe 232 inner wall, locate the sealing spring 2322 of third connecting rod 2321 bottom and locate the second seal block 2323 of sealing spring 2322 bottom, the second seal block 2323 with first air vent 241 cooperatees, and the second seal block is made for rubber materials, and when the second seal block wanted the cooperation with first air vent, sealing spring was in the contraction state, produced the elastic force effect to the second seal block through sealing spring, increased the sealed effect of second seal block and first air vent.

When the air pressure in the first movable cavity is increased to a preset value, the air pressure in the first movable cavity pushes the second sealing block to move upwards, so that the second sealing block moves upwards to compress the sealing spring, the first vent hole is opened, the air enters the fifth air delivery pipe, enters the water filtration bag through the seventh air delivery pipe, the air pressure above the water filtration bag is increased, the mixed liquid is pressed downwards, the moisture in the mixed liquid is conveniently extruded from the water filtration bag, and the moisture in the water filtration bag is rapidly filtered from the water filtration bag under the action of the air pressure of gravity; through cutoff subassembly and seal assembly respectively with mutually supporting of air pump, make the air pump can carry out aeration treatment in to the separating reservoir, can also provide power for the ejector pad subassembly, can also help the quick filtering of moisture in the drainage bag, the at utmost utilizes the air pump, reduces the energy resource consumption of equipment, lifting means's practicality.

The left cover plate and the right cover plate are respectively provided with a limiting plate 42, when the water filter bag rises, the left cover plate and the right cover plate are close to each other under the action of a driving motor, the left cover plate and the right cover plate are matched with the limiting plates in the motion process until the left cover plate and the right cover plate are close to each other and matched with the connecting block, and the limiting plates play a limiting role in the left cover plate and the right cover plate at the moment, so that the left cover plate and the right cover plate are stably matched with the connecting block, and a supporting.

The left cover plate and the right cover plate are respectively provided with a limiting component matched with the limiting plate 42; the left cover plate and the right cover plate are respectively provided with two groups of limiting assemblies which are respectively arranged at the two sides of the left cover plate and the right cover plate; through mutually supporting of limiting plate and spacing subassembly, the stability of apron mutually supporting about increasing, the cooperation that the apron can be more stable about making is in the same place.

An inclined plane is arranged on one side of the limiting plate 42, and a limiting hole 421 is arranged on the inclined plane; the inclined plane is also provided with an anti-falling hole 422, and the anti-falling hole 422 is arranged on one side of the limiting hole 421; the diameter in anticreep hole is less than the diameter in spacing hole, and spacing hole and spacing subassembly are mutually supported, play limiting displacement to the apron, and the anticreep hole plays the safeguard, avoids spacing subassembly and spacing hole to throw off the cooperation.

The limiting assembly comprises a third movable cavity 43 arranged on the cover plate 4, a limiting spring 44 arranged in the third movable cavity 43 and a limiting lug 45 arranged at the top of the limiting spring 44, and the limiting lug 45 is matched with the limiting hole 421; one end of the limiting spring is fixedly connected to the bottom of the third movable cavity, the other end of the limiting spring is fixedly connected with the bottom of the limiting lug, the limiting lug can move along the inner wall of the third movable cavity, and the top of the limiting lug is of an arc-shaped structure; through the matching of the limiting lug and the inclined plane, when the electric left and right cover plates of the driving motor move, the limiting lug moves along the inclined plane, the limiting spring which is originally in a compressed state slowly extends under the action of the inclined plane, and the limiting spring restores to be as long as the limiting lug and the limiting hole are matched after the limiting lug moves into the limiting hole, so that a limiting effect is provided for the cover plate; when spacing hole and spacing lug throw off the cooperation, spacing lug moves to the anticreep downthehole, through the cooperation of anticreep hole with spacing lug, plays certain spacing effect to the apron, avoids controlling the apron to break away from with the connecting block completely, provides good supporting effect for the connecting block.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A stable oil-water separation device in automobile recovery treatment comprises a separation box (1) and a cover plate (4) arranged at the top of the separation box (1), wherein the separation box (1) comprises a separation box upper part (11) and a separation box lower part (12), and a separation pool (125) is arranged at the separation box lower part (12); the cover plate (4) comprises a left cover plate and a right cover plate, and the left cover plate and the right cover plate can be opened and closed; the method is characterized in that: a supporting table (13) is arranged at the top of the upper part (11) of the separation box, a driving piece for driving the left cover plate and the right cover plate to move is arranged on the supporting table (13), and limiting plates (42) are respectively arranged on two sides of the left cover plate and the right cover plate; the left cover plate and the right cover plate are respectively provided with a limiting component matched with the limiting plate (42); an inclined plane is arranged on one side of the limiting plate (42), and a limiting hole (421) is formed in the inclined plane; the limiting assembly comprises a third movable cavity (43) arranged on the cover plate (4), a limiting spring (44) arranged in the third movable cavity (43) and a limiting lug (45) arranged at the top of the limiting spring (44), and the limiting lug (45) is matched with the limiting hole (421); the inclined plane is further provided with an anti-falling hole (422), and the anti-falling hole (422) is formed in one side of the limiting hole (421).

2. A stable oil-water separator in an automobile recycling process according to claim 1, wherein: the side wall of the upper part (11) of the separation box is obliquely arranged, a water filtering bag (21) is arranged in the lower part (12) of the separation box, a clamping jaw assembly used for fixing the water filtering bag (21) is arranged on the lower part (12) of the separation box, and the air pump (14) can drive the clamping jaw assembly to move up and down.

3. A stable oil-water separator in an automobile recycling process according to claim 2, wherein: the bottom of the separation tank (125) is provided with an aeration disc (31), a first air conveying pipe (311) is arranged in the aeration disc (31), a second air conveying pipe (15) communicated with the first air conveying pipe (311) is arranged at the bottom of the separation tank (125), and a flow stopping assembly is arranged in the second air conveying pipe (15).

4. A stable oil-water separator in an automobile recycling process according to claim 3, wherein: the separation box is characterized in that a third air conveying pipe (122) is arranged on the bottom surface of the lower portion (12) of the separation box, the third air conveying pipe (122) is communicated with the second air conveying pipe (15), a first movable cavity (121) is arranged on the side wall of the separation box (1), a fourth air conveying pipe (123) is arranged at the bottom of the first movable cavity (121), and the fourth air conveying pipe (123) is communicated with the third air conveying pipe (122).