CN108913197B - Oil-water separation equipment with protection effect on device and used for automobile recovery - Google Patents

Abstract

The invention discloses oil-water separation equipment for automobile recovery, which has a protection effect on the device and comprises an outer box body, a box cover arranged at the top of the outer box body and an inner box body arranged inside the outer box body, wherein the box cover is detachably matched with the outer box body, a handle is arranged on the box cover, a first air pump is arranged on one side of the handle, an air storage tank is also arranged on the box cover, and the first air pump is connected with the air storage tank through a first air conveying pipe; a second gas pipe is arranged at the bottom of the outer box body, and a second gas pump communicated with the second gas pipe is arranged at the bottom of the outer box body; the bottom of the inner box body is provided with a third gas pipe communicated with the second gas pipe, and the bottom of the inner box body is also provided with a plurality of aeration components communicated with the third gas pipe; an anti-backflow component is arranged in the third gas pipe; the backflow prevention assembly has a protection effect on the second air pump, and the service life of the second air pump is prolonged.

Description

Oil-water separation equipment with protection effect on device and used for automobile recovery

Technical Field

The invention belongs to the technical field of scraped car recovery, and particularly relates to oil-water separation equipment for car recovery, which has a protection effect on a device.

Background

With the improvement of living standard of people, the demand and the possession of automobiles are rapidly increased, and the quantity of waste automobiles is also rapidly increased. The automobile industry is taken as the prop industry of national economy, and simultaneously, the manufacture consumes a large amount of resources, so the environment can be protected and the resources can be saved by reusing, remanufacturing and reusing waste automobile parts and materials. The oil liquid which can be recovered is arranged in the oil tank of the scraped car, and the waste oil liquid is directly discharged to pollute the environment and waste resources, so that the recovery and the utilization of the waste oil of the car are of great significance, the waste is changed into valuable, the soil is prevented from being polluted, the water area is prevented from being polluted, and the ecological balance is maintained. When carrying out recovery processing to the waste oil liquid in the car, in order to increase water oil separating efficiency, adopt the air supporting separation method help profit to separate fast usually, in current equipment, when letting in gas in toward mixing liquid, mix in the liquid enters into the air pump from the gas outlet easily, cause the influence to the work of air pump, shorten the life of air pump.

Disclosure of Invention

The invention provides the oil-water separation equipment for the automobile recovery, which has the function of protecting the device and can prolong the service life of the equipment in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: an oil-water separation device with a protection effect on a device and used for automobile recovery comprises an outer box body, a box cover arranged at the top of the outer box body and an inner box body arranged in the outer box body, wherein the box cover is detachably matched with the outer box body, a handle is arranged on the box cover, a first air pump is arranged on one side of the handle, an air storage tank is also arranged on the box cover, and the first air pump is connected with the air storage tank through a first air conveying pipe; a second gas pipe is arranged at the bottom of the outer box body, and a second gas pump communicated with the second gas pipe is arranged at the bottom of the outer box body; the bottom of the inner box body is provided with a third gas pipe communicated with the second gas pipe, and the bottom of the inner box body is also provided with a plurality of aeration components communicated with the third gas pipe; an anti-backflow component is arranged in the third gas pipe; through the matching effect of the two air pumps and the air delivery pipe, air is provided for the aeration component, so that the aeration component can introduce air bubbles into the mixed liquid, and the oil-water separation efficiency is improved; through preventing that the backward flow subassembly plays the guard action to the second air pump, avoid entering into the mixed liquid in the third air pipe directly to enter into the second air pump along the air-supply pipe, avoid the second air pump to receive the interference of mixed liquid, prolong the life of second air pump.

Preferably, the aeration assembly comprises a fixed sleeve arranged at the bottom of the inner box body, a central shaft penetrating through the fixed sleeve, a rotating fan blade arranged at the bottom of the central shaft and an aeration disc arranged at the top of the central shaft, wherein a plurality of aeration holes are formed in the aeration disc, and a one-way circulation assembly is arranged in each aeration hole; through the setting of one-way circulation subassembly, make the aeration hole be in the closed condition when not carrying out aeration work, avoid mixing in the liquid directly enters into the third air pipe, play the hindrance effect to the rotation of second air pump drive rotating fan leaf, make rotating fan leaf stable rotation under the effect of second air pump, promote aeration component's aeration effect.

Preferably, the backflow preventing component comprises an air storage pipe arranged on the inner wall of the third air pipe, an air injection hole arranged on the side wall of the air storage pipe and a duckbill arranged on the air injection hole; through the setting of duckbilled mouth, the gas that makes in the second air transmission pipe can be easily spout in the duckbilled mouth, and inside the mixed liquid in the third air transmission pipe can't enter into the duckbilled mouth, plays the guard action to the second air pump, avoids mixed liquid to enter into in the air storage pipe directly to let in the air outlet pipe of second air pump and cause the influence to the second air pump, extension air pump life.

Preferably, a sealing block is arranged in the gas storage pipe, a connecting spring is arranged at the top of the sealing block, and the connecting spring is fixedly connected with the top of the gas storage pipe; the air storage pipe is further sealed through the sealing block, when the second air pump does not work, the sealing block is matched with the inside of the air storage pipe under the action of the connecting spring, the air injection hole is sealed, and mixed liquid is prevented from entering the air storage pipe from the duckbill opening; when the second air pump begins to work, thereby the seal block up-moves under the effect of atmospheric pressure and opens the fumarole, and it is interior to be convenient for gaseous from the downthehole duckbilled that enters into of fumarole, with gaseous transport to the aeration subassembly in.

Preferably, the one-way circulation assembly comprises a first limiting plate arranged on the inner wall of the aeration hole, a connecting rod penetrating through the first limiting plate and a sealing plate arranged at the top of the connecting rod; the sealing plate is matched with the aeration disc to seal the aeration hole; when the aeration component does not perform aeration work, the sealing plate seals the aeration hole, the mixed liquid is prevented from entering the third air pipe to influence the operation of the stirring fan blades, and the reliability of the equipment is improved.

Preferably, a second limiting plate is arranged at the bottom of the connecting rod, a sealing spring is arranged on the second limiting plate, and the top of the sealing spring is in contact with the first limiting plate; a plurality of air holes are formed in the first limiting plate; through the mating reaction of sealing spring and limiting plate, make the closing plate open the aeration hole under the effect of atmospheric pressure, make the gaseous more convenient blowout from the aeration hole of second air pump, do not hinder the normal work in aeration hole when playing sealed guard action to the third gas-supply pipe, increase the practicality of equipment.

Preferably, the side wall of the inner box body is provided with a slide bar, and the inner wall of the outer box body is provided with a sliding chute matched with the slide bar; the bottom of the outer box body is provided with a pushing assembly for driving the inner box body to do lifting motion; through the effect of propelling movement subassembly, be convenient for push away the outer box with interior box in to the convenient internal box is cleared up, avoids the aeration subassembly to be blockked up the normal work that influences the aeration subassembly by impurity, reduces the plant maintenance cost, promotes aeration subassembly life.

Preferably, a fourth gas pipe is further arranged at the bottom of the outer box body and communicated with the second gas pipe, and a flow stopping assembly is arranged in the second gas pipe; through mutually supporting between the gas-supply pipe, with the gas input of second air pump in aeration subassembly and the propelling movement subassembly, make the second air pump can provide reliable power supply for the propelling movement subassembly after for mixing liquid provides the bubble, with the effect maximize of second air pump, reduce the occupation space of equipment, increase the practicality of equipment.

The invention has the following advantages: through the matching effect of the two air pumps and the air delivery pipe, air is provided for the aeration component, so that the aeration component can introduce air bubbles into the mixed liquid, and the oil-water separation efficiency is improved; through preventing that the backward flow subassembly plays the guard action to the second air pump, avoid entering into the mixed liquid in the third air pipe directly to enter into the second air pump along the air-supply pipe, avoid the second air pump to receive the interference of mixed liquid, prolong the life of second air pump.

Drawings

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

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

FIG. 3 is a schematic view of the structure of the gas storage tube of the present invention.

FIG. 4 is a schematic cross-sectional view of the gas storage tube of the present invention.

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

FIG. 6 is a schematic structural diagram of the inner box of the present invention.

FIG. 7 is a cross-sectional view of the inner housing of the present invention.

Fig. 8 is an enlarged view of fig. 2 at a.

Fig. 9 is a schematic view of an aeration assembly of the present invention.

Fig. 10 is a schematic structural view of an aeration assembly according to the present invention.

Fig. 11 is a cross-sectional view of an aeration assembly of the present invention.

Fig. 12 is an enlarged view of fig. 2 at B.

Fig. 13 is a schematic view of the structure of the filter plate of the present invention.

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. 1-13, an oil-water separator for recovering automobiles, which has a protection effect on devices, comprises an outer box body 1, a box cover 4 arranged on the top of the outer box body 1, and an inner box body 3 arranged inside the outer box body 1, wherein the front and back surfaces of the inner box body are not provided with side walls, so that the devices on the inner box body can be conveniently installed; the box cover 4 is detachably matched with the outer box body 1, the box cover is directly covered on the outer box body to enable the inner part of the outer box body to form a sealed state, a handle 41 is arranged on the box cover 4, and the box cover can be moved by holding the handle through a manipulator so as to be convenient to take down the box cover from the outer box body; a first air pump 42 is arranged on one side of the handle 41, an air storage tank 43 is further arranged on the box cover 4, and the first air pump 42 is connected with the air storage tank 43 through a first air conveying pipe 44; the first air pump is an electronic air pump, and can perform air extraction and air supply; the side wall of the inner box body 3 is provided with a heating block 39, the bottom of the inner box body 3 is provided with a plurality of aeration components 31, and the bottom of the outer box body 1 is provided with a second air pump 12 matched with the aeration components 31; the front side wall of the outer box body is provided with a feeding pipe, waste oil liquid enters the outer box body through the feeding pipe, the waste oil liquid is placed on the inner box body after entering the outer box body, bubbles are provided for the aeration assembly through a second air pump, the bubbles are introduced into the mixed liquid, the bubbles are in mutual contact with oil drops in the mixed liquid to form a fit, the oil drops are driven to float upwards quickly, and the mixed liquid forms an oil-water layering phenomenon quickly; after the profit layering, the water layer with the lower floor is drained, cover the case lid and make the internal portion of outer box form encapsulated situation, the processing of bleeding is carried out to the internal portion of outer box through the effect of first air pump, make the internal portion of outer box form the vacuum state, reduce the boiling point of fluid and moisture, heat the oil reservoir through the heating piece, make the intraformational moisture of oil reach the boiling point fast, moisture is absorbed by first air pump after becoming vapor, store vapor in the gas holder through first air pump, the distilled water that waits of being convenient for recycles.

The bottom of the inner box body 3 is provided with a plurality of mounting holes 32, the bottom of each mounting hole 32 is provided with a blanking hole 36, the blanking hole 36 is internally provided with an electromagnetic valve 361, and the side wall of the outer box body 1 is provided with a discharge pipe 11 communicated with the blanking holes 36; a filter plate 34 is arranged in the mounting hole 32, a plurality of filter holes 341 are arranged on the filter plate 34, and an outer edge part 342 matched with the mounting hole 32 is arranged on the outer side of the filter plate 34; the filter plate is arranged at the bottom of the inner box body through the matching of the outer edge part and the mounting hole, so that the filter plate can be conveniently taken out of the inner box body, the filter plate is convenient to dredge and replace, and the service life of the filter plate is prolonged; when the mixed liquid forms an oil-water stratification phenomenon, the electromagnetic valve is opened to enable the blanking hole to be in an open state, the water layer falls into the blanking hole under the action of gravity, flows to the discharging pipe through the blanking hole and is discharged from the discharging pipe from the outer box body, and after the lower-layer water is discharged, the electromagnetic valve is closed to enable the oil liquid in the outer box body to be further heated; after fluid heat treatment accomplished, the solenoid valve is reopened, makes fluid enter into the unloading downthehole, and fluid makes in entering into the unloading downthehole by the filter filtration, avoids fluid to take impurity together to discharge from the discharging tube, promotes fluid recovery quality, prevents that the unloading hole from being blockked up.

A sliding strip 33 is arranged on the side wall of the inner box body 3, and a sliding groove matched with the sliding strip 33 is arranged on the inner wall of the outer box body 1; the bottom of the outer box body 1 is provided with a pushing assembly for driving the inner box body 3 to do lifting motion; through the mutual matching of the pushing assembly and the sliding strip sliding groove, the inner box body can be conveniently taken out of the outer box body, so that impurities retained on the bottom surface of the inner box body can be conveniently cleaned, and the secondary pollution of the impurities on the inner box body to oil liquid in the next working process is avoided; meanwhile, the filter plate and the aeration component can be conveniently subjected to blockage removal treatment, the filter plate and the aeration component are prevented from being blocked by impurities, the service life of equipment is prolonged, and the maintenance cost of the equipment is reduced.

A second air pipe 15 is arranged at the bottom of the outer box 1, and an air outlet pipe of the second air pump 12 is connected with the second air pipe 15; a third air pipe 37 is arranged at the bottom of the inner box body 3, and the second air pipe 15 is communicated with the third air pipe 37; a fourth gas pipe 13 is further arranged at the bottom of the outer box body 1, the fourth gas pipe 13 is communicated with the second gas pipe 15, and a flow stopping assembly is arranged in the second gas pipe 15; the flow stopping assembly is used for controlling the communication of the second air conveying pipe and the fourth air conveying pipe; the bottom of the inner box body is also provided with an air outlet 38 which corresponds to the aeration component and is communicated with a third air delivery pipe; when the mixed liquid is placed in the outer box body for separation treatment, the cutoff device closes the fourth gas conveying pipe, so that the gas flow output by the second gas pump enters the third gas conveying pipe, the gas is input into the aeration component through the gas outlet hole, and the gas is discharged into the mixed liquid through the aeration component, so that bubbles and oil drops are mixed with each other, and the oil-water separation efficiency is improved; through mutually supporting between the gas-supply pipe, with the gas input of second air pump in aeration subassembly and the propelling movement subassembly, make the second air pump can provide reliable power supply for the propelling movement subassembly after for mixing liquid provides the bubble, with the effect maximize of second air pump, reduce the occupation space of equipment, increase the practicality of equipment.

Interior bottom half is equipped with connecting pipe 35, and connecting pipe 35 is made for rubber, and the connecting pipe internal diameter is less than second gas transmission pipe internal diameter, through mutually supporting of connecting pipe and second gas transmission pipe, makes the gas of second air pump can be better send into the third gas transmission pipe through the second gas transmission pipe in, promotes aeration component's aeration effect, promotes water oil separating efficiency.

The aeration component 31 comprises a fixed sleeve 311 arranged at the bottom of the inner box body 3, a middle shaft 313 penetrating through the fixed sleeve 311, a rotating fan leaf 3132 arranged at the bottom of the middle shaft 313 and an aeration disc 312 arranged at the top of the middle shaft 313; a fixing plate 3131 is arranged on the middle shaft 313, and the fixing plate 3131 is matched with the fixing sleeve 311; the middle shaft 313 is internally provided with a fifth air conveying pipe 314, the aeration disc 312 is provided with a plurality of aeration holes 3121 communicated with the fifth air conveying pipe 314, the number of the fixing plates is two, the top of the fixing sleeve is clamped between the two groups of the fixing plates, and the matching effect of the fixing plates and the fixing sleeve is increased through the matching of the fixing plates and the fixing sleeve, so that the middle shaft is prevented from falling off from the fixing sleeve; the fixed sleeve is matched with the air outlet hole and fixedly connected to the side wall of the air outlet hole; the middle shaft is rotatably connected to the fixed sleeve; when the second air pump is used for conveying air to the aeration component, the air enters the fixed sleeve through the air outlet hole, and the rotating fan blades rotate under the action of the air to drive the aeration disc to rotate; a part of the gas entering the fixed sleeve enters a fifth gas transmission pipe, the gas is transmitted into the aeration disc through the fifth gas transmission pipe and is sprayed out of the aeration disc through the aeration holes, so that the aeration disc rotates and sprays gas; aeration dish stirs partly rivers when rotating and rotates, and aeration dish sends the bubble into mixed liquid at the pivoted in-process, makes the bubble that enters into in the mixed liquid increase with the chance that drips the contact, and the bubble of being convenient for drives oil and drips quick come-up with oil droplet inter combination, increases water oil separating efficiency.

A backflow prevention component is arranged in the third gas pipe 37; a one-way circulation assembly is arranged in the aeration hole 3121; through preventing mutually supporting of backward flow subassembly and one-way circulation subassembly, play the guard action to the second air pump, avoid mixed liquid when adding equipment in, the second air pump does not begin work, mixes liquid and directly enters into second air pump department in entering into the third air pipe through the aeration hole, causes the influence to the second air pump, prolongs the life of second air pump.

The backflow prevention assembly comprises an air storage tube 371 arranged on the inner wall of the third air delivery pipe 37, an air vent arranged on the side wall of the air storage tube 371 and a duckbill 372 arranged on the air vent; a sealing block 3711 is arranged in the gas storage tube 371, a connecting spring 3712 is arranged at the top of the sealing block 3711, and the connecting spring 3712 is fixedly connected with the top of the gas storage tube 371; when the connecting spring is in the original length, the sealing block is aligned with the air injection hole to seal the air injection hole, so that the mixed liquid entering the third air delivery pipe is prevented from directly entering the air outlet pipe of the second air pump; the air storage pipe is arranged above the connecting pipe and communicated with the second air conveying pipe, and air flow in the second air conveying pipe enters the third air conveying pipe after passing through the air storage pipe.

The one-way circulation assembly comprises a first limiting plate 3123 arranged on the inner wall of the aeration hole 3121, a connecting rod 3124 arranged on the first limiting plate 3123 in a penetrating manner, and a sealing plate 3122 arranged on the top of the connecting rod 3124; a second limiting plate 3126 is arranged at the bottom of the connecting rod 3124, a sealing spring 3125 is arranged on the second limiting plate 3126, and the top of the sealing spring 3125 is in contact with the first limiting plate 3223; the first limiting plate 3123 is provided with a plurality of air holes 31231; the first limiting plate is fixedly connected with the inner wall of the aeration hole; the sectional area of the sealing plate is larger than that of the aeration hole, and when the sealing spring is in the original length, the sealing plate is in contact with the aeration disc to seal the aeration hole; be equipped with the through-hole on the first limiting plate, the connecting rod wears to locate the through-hole, and the connecting rod can be along the through-hole inner wall up-and-down motion.

When the mixed liquid enters the equipment and the second air pump does not start to work, the sealing spring and the connecting spring are both in the original length state, the aeration hole and the air storage pipe are sealed through the sealing plate and the sealing block, and the mixed liquid is prevented from entering the third air storage pipe to affect the second air pump; when the second air pump begins the during operation, the second air pump is defeated gas toward in the second gas transmission pipe, make the atmospheric pressure in the gas storage pipe increase, push up the motion of sealed piece compression connecting spring play under the effect of atmospheric pressure, make gaseous spout in the duckbilled mouth, it is gaseous in entering into the third gas transmission pipe, enter into the aeration dish along the third gas transmission pipe, make the atmospheric pressure increase in the fifth gas transmission pipe, promote the motion of second limiting plate compression sealing spring up, open the aeration hole, make gaseous follow the downthehole entering into of aeration mix liquid, contact with the oil droplet in the mixed liquid and drive oil droplet quick come-up, promote water oil separating efficiency.

The pushing assembly comprises an extension tube 141 arranged at the bottom of the outer box body 1, a support plate 142 arranged at the bottom of the extension tube 141 and a first push plate 143 arranged at the top of the extension tube 141, a sixth air delivery pipe is arranged in the support plate 142 and communicated with the fourth air delivery pipe 13; the telescopic pipe is made of latex, after the mixed liquid is treated in the equipment, the cut-off device has a sealing effect on the connection of the second gas pipe and the third gas pipe, so that the second gas pipe is communicated with the fourth gas pipe, and air flow is introduced into the telescopic pipe through the mutual matching of the fourth gas pipe and the sixth gas pipe, so that the air pressure in the telescopic pipe is gradually increased, the telescopic pipe starts to expand under the action of the air pressure, and the bottom of the outer box body has a limiting effect on the side wall of the telescopic pipe, so that the telescopic pipe longitudinally expands, the inner box body is pushed to move upwards, and the slide bar is enabled to stably move upwards along the sliding groove; the inner box body is conveyed out of the outer box body in an air pressure mode, so that the arrangement of a driving piece is reduced, the action of the second air pump is maximized, and the energy consumption of equipment is reduced; after the box rises to the take-up height under the effect of propelling movement subassembly in, interior box top is higher than outer box top, and the effect through the manipulator is taken out interior box from outer box internal, is convenient for clear up the impurity of internal box bottom surface, and the change is maintained to the device on the convenient internal box simultaneously, reduces the maintenance cost of equipment.

The cut-off assembly comprises a limiting block 151 arranged on the inner wall of the second gas transmission pipe 15, a sealing ring 152 arranged below the limiting block 151 and a sealing ring gasket 153 arranged at the top of the sealing ring 152, an arc-shaped groove 1511 is formed in the limiting block 151, and the sealing ring gasket 153 is arranged in the arc-shaped groove 1511 in a penetrating manner; a third limiting plate 1522 is arranged on the inner wall of the sealing ring 152, a return spring 1523 is arranged on the third limiting plate 1522, one end of the return spring 1523 is fixedly connected with the limiting block 151, and the other end of the return spring 1523 is fixedly connected with a third limiting plate; the bottom of the sealing ring 152 is provided with a second push plate 1521; the sealing ring gasket is made of rubber, and the upper part of the sealing ring gasket is in a bent state under the action of the arc-shaped groove; when the second gas pipe is communicated with the third gas pipe, the return spring is in an original long state, the sealing ring is matched with the fourth gas pipe to seal the joint of the fourth gas pipe and the second gas pipe, so that the second gas pump provides gas for the aeration assembly to carry out aeration treatment; after the mixed liquid in the equipment is separated, the output power of a second air pump is increased, the air flow displacement of the second air pump is increased, a second push plate moves upwards under the action of air flow to push a sealing ring gasket to move upwards, the sealing ring gasket slides along an arc-shaped groove, the movement of a sealing ring in the vertical direction is converted into the movement of the sealing ring gasket in the horizontal direction under the action of the arc-shaped groove, the top of the sealing ring gasket is matched with each other to achieve a sealing effect on the joint of a second air pipe and a third air pipe, so that the joint of the second air pipe and a fourth air pipe is opened, air enters a telescopic pipe through the fourth air pipe, the inner box body is pushed to move upwards under the action of the telescopic pipe, and the inner box body is taken out of the outer box body; after the inner box body is taken out, the second air pump stops working, the sealing ring resets under the action of the reset spring after losing the action of the air flow, the sealing effect is achieved on the joint of the fourth air conveying pipe and the second air conveying pipe again, and the next mixed liquid is convenient to separate.

After fluid is accomplished by heat treatment, the solenoid valve is opened and is discharged fluid from the equipment, and first air pump can be for outer box internal transport gas this moment, increases the atmospheric pressure on outer box internal upper portion, makes the fluid in the outer box get into the unloading downthehole under the effect of atmospheric pressure, and the quick discharge of the fluid of being convenient for promotes the collection efficiency to fluid.

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 (3)

1. An oil-water separation device with a protection effect for automobile recovery comprises an outer box body (1), a box cover (4) arranged at the top of the outer box body (1) and an inner box body (3) arranged inside the outer box body (1), wherein the box cover (4) is detachably matched with the outer box body (1), a handle (41) is arranged on the box cover (4), a first air pump (42) is arranged on one side of the handle (41), an air storage tank (43) is further arranged on the box cover (4), and the first air pump (42) is connected with the air storage tank (43) through a first air conveying pipe (44); the method is characterized in that: a second air pipe (15) is arranged at the bottom of the outer box body (1), and a second air pump (12) communicated with the second air pipe (15) is arranged at the bottom of the outer box body (1); the bottom of the inner box body (3) is provided with a third air conveying pipe (37) communicated with the second air conveying pipe (15), the bottom of the inner box body (3) is also provided with a plurality of aeration assemblies (31), and the aeration assemblies (31) are communicated with the third air conveying pipe (37); a backflow prevention component is arranged in the third gas pipe (37); the aeration component (31) comprises a fixed sleeve (311) arranged at the bottom of the inner box body (3), a middle shaft (313) penetrating through the fixed sleeve (311), rotating fan blades (3132) arranged at the bottom of the middle shaft (313) and an aeration disc (312) arranged at the top of the middle shaft (313), wherein a plurality of aeration holes (3121) are formed in the aeration disc (312), and a one-way circulation component is arranged in the aeration holes (3121); the backflow prevention assembly comprises an air storage pipe (371) arranged on the inner wall of the third air conveying pipe (37), an air injection hole arranged on the side wall of the air storage pipe (371), and a duckbill opening (372) arranged on the air injection hole; a sealing block (3711) is arranged in the gas storage tube (371), a connecting spring (3712) is arranged at the top of the sealing block (3711), and the connecting spring (3712) is fixedly connected with the top of the gas storage tube (371); the one-way circulation assembly comprises a first limiting plate (3123) arranged on the inner wall of the aeration hole (3121), a connecting rod (3124) arranged on the first limiting plate (3123) in a penetrating manner, and a sealing plate (3122) arranged at the top of the connecting rod (3124); a second limiting plate (3126) is arranged at the bottom of the connecting rod (3124), a sealing spring (3125) is arranged on the second limiting plate (3126), and the top of the sealing spring (3125) is in contact with the first limiting plate (3123); the first limiting plate (3123) is provided with a plurality of air holes (31231).

2. An oil-water separating apparatus for automobile recycling having a protective effect on an apparatus according to claim 1, wherein: a sliding strip (33) is arranged on the side wall of the inner box body (3), and a sliding groove matched with the sliding strip (33) is arranged on the inner wall of the outer box body (1); the bottom of the outer box body (1) is provided with a pushing assembly for driving the inner box body (3) to do lifting motion.

3. An oil-water separating apparatus for automobile recycling having a protective function for an apparatus according to claim 2, wherein: the bottom of the outer box body (1) is further provided with a fourth air conveying pipe (13), the fourth air conveying pipe (13) is communicated with the second air conveying pipe (15), and a cut-off assembly is arranged in the second air conveying pipe (15).

Images