CN213060537U - Rolling oil-water separation device - Google Patents

Abstract

The utility model discloses a rolling oil-water separator, including device body, mud-water separation jar, sewage case and hydro-cylinder, this internal scrubbing storehouse, water filtering bin and the oil scraping bin of having seted up of device, scrubbing storehouse, water filtering bin and oil scraping bin turn-on connection in proper order, the top threaded connection of mud-water separation jar has first tube cap, the top threaded connection of hydro-cylinder has the second tube cap. The utility model discloses in, through the design of scrubbing board, make the scrubbing board can carry out certain clearance to the scrubbing storehouse at any time and discharge the dirt, design through the mud-water separation jar, effectually carry out certain dry wet separation to the dirt, carry out centralized processing with dry dirt, the sewage after the separation continues to discharge and carries out secondary oil water separation in advancing the scrubbing storehouse, the cleaning nature of device body has been improved, through the design of heating pipe in the hydro-cylinder, make the oil bottle can store the oil of solidification for a long time in the bottle and heat the activation, and can carry out secondary separation to oil when gathering oil, the practicality of device body has further been improved.

Description

Rolling oil-water separation device

Technical Field

The utility model relates to an oil-water separation technical field especially relates to rolling oil-water separator.

Background

The oil-water separator is a device and is divided into a catering oil-water separator and an industrial oil-water separator. The catering oil-water separator is used for treating sewage in the catering industry; because of the environmental protection requirement, the sewage generated by the ship machine discharged to the river, lake and sea is required to be treated, an industrial oil-water separator is required to be used for separating oil from water, and the machine is usually used for treating the sewage by the ship.

Most of the existing oil-water separation devices are used for extracting oil when oil scraping is carried out, and the oil-water separation is incomplete, excessive impurities can be contained in oil bodies, and when the scraped sewage is discharged, the sewage is not well purified to a certain extent, so that certain influence is caused on the surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a device of a rolling oil-water separation device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the rolling oil-water separation device comprises a device body, a mud-water separation cylinder, a sewage tank and an oil cylinder, wherein a decontamination bin, a water filtering bin and an oil scraping bin are arranged in the device body, the decontamination bin, the water filtering bin and the oil scraping bin are sequentially connected in a conduction mode, the top end of the mud-water separation cylinder is in threaded connection with a first pipe cover, and the top end of the oil cylinder is in threaded connection with a second pipe cover;

a water inlet pipe is connected to a top plate inside the decontamination cabin in a conduction mode, a lead screw is connected to the decontamination cabin in a rotary mode, a decontamination plate is connected to the lead screw in a rotary mode, a first filter screen is arranged at the connection position of the decontamination cabin and a water filtering cabin, a drain pipe is connected between the decontamination cabin and a first pipe cover in a conduction mode, a drain valve is arranged at one end, close to the decontamination cabin, of the drain pipe, a vacuum pump is connected between the mud-water separation cylinder and a sewage tank in a threaded mode, a water pump is connected to one side wall of the sewage tank in a threaded mode, and a sewage pipe is connected between the water;

a second filter screen is arranged at the connection part of the water filtering bin and the oil scraping bin, an oil scraping device is rotatably connected to the inner wall of the oil scraping bin, an oil conveying rail is inserted into one side wall of the oil scraping bin and extends to the outer side of the device body in a penetrating manner, an oil collecting groove matched with the oil scraping device is welded at the top end of the oil conveying rail, an oil outlet pipe is welded at the bottom end of the oil conveying rail, and a second pipe cover is inserted into an opening of the oil outlet pipe;

the oil scraping device comprises an oil scraping rotating shaft, a plurality of telescopic rods and an oil squeezing device, the number of the telescopic rods is totally arranged, and a plurality of the telescopic rods are welded on the surface of the oil scraping rotating shaft in an annular manner, the other end of each telescopic rod is rotatably connected with an oil squeezing device through the rotating shaft, the oil squeezing device comprises a limiting block, a bracket, a reverse thread lead screw of a squeezing plate and an oil absorption sponge, wherein the oil absorption sponge is a macromolecular oleophylic hydrophobic material, the two limiting blocks, the two extrusion plates and the two supports are arranged, a reverse threaded lead screw is rotatably connected between the two limiting blocks, the supports are welded at the bottom ends of the two limiting blocks, a limiting rod is welded between the two supports, the extrusion plates are rotatably connected on the reverse threaded lead screw, the extrusion plates are connected on the limiting rod in a sliding mode through limiting holes, the limiting rod is sleeved with an oil absorption sponge, and the oil absorption sponge is located between the two extrusion plates;

the sludge-water separation cylinder comprises an upper half separation cylinder, a lower half separation cylinder and a sewage collection pipe, the upper half separation cylinder and the lower half separation cylinder are in a threaded connection structure, a sewage collection pipe limiting block is welded on the outer surface wall of the sewage collection pipe, the number of the sewage collection pipe limiting blocks is two, a limiting groove matched with the sewage collection pipe limiting block is formed in the inner wall of the lower half separation cylinder, a third filter screen is arranged at an opening at the bottom end of the sewage collection pipe, and the sewage collection pipe is clamped in the sludge-water separation cylinder;

the oil cylinder comprises an oil bottle and a ventilation inner cover, the ventilation inner cover and the oil bottle are in a threaded connection structure, a heating pipe is embedded and installed on a bottom plate inside the oil bottle, a ventilation opening is formed in the surface wall of the ventilation inner cover in a conduction mode, the outer surface wall of the ventilation inner cover is connected with a ventilation outer cover in a rotating mode through a guide rail, and an oil blocking net is embedded in the surface wall of the ventilation outer cover.

The first pipe cover comprises a telescopic pipe and a telescopic cover, the telescopic pipe and the telescopic cover are of a clamping structure, a spring is welded between the telescopic pipe and the telescopic cover, and a sealing device is embedded in the telescopic cover;

the sealing device comprises an outer rotating shaft and an inner rotating shaft, wherein the surface of the outer rotating shaft is rotatably connected with a sealing blade through a nut, the surface of the sealing blade is communicated with a sliding groove, a limiting convex rod matched with the sliding groove in use is welded on the surface of the inner rotating shaft, and the limiting convex rod is clamped in the sliding groove.

Preferably, the sealing blade is provided with a plurality of, a plurality of the sealing blade is the annular distribution on outer pivot, and two adjacent sealing blade contained angles equal.

Preferably, the ventilation openings are provided with a plurality of ventilation openings which are distributed on the ventilation inner cover in a surrounding manner, and the distance between every two adjacent ventilation openings is equal.

Preferably, the oil blocking nets are arranged in a plurality of numbers, the oil blocking nets are distributed on the ventilation outer cover in a surrounding mode, and the distance between every two adjacent oil blocking nets is equal.

Preferably, an air flotation generator is fixed on an inner bottom plate of the oil scraping bin through bolts, and an air inlet of the air flotation generator penetrates through the outer side of the device body and is connected with an exhaust fan through threads.

Preferably, one side wall of the oil scraping bin is in conduction connection with a drain pipe, and one end of the drain pipe is provided with a drain valve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, this rolling oil-water separator, through the design of scrubbing board for the scrubbing board can carry out certain clearance to the scrubbing storehouse at any time and discharge the dirt, through mud-water separation tank's design, effectually carries out certain dry wet separation to the dirt, carries out centralized processing with dry dirt, and the sewage after the separation continues to discharge and carries out secondary oil-water separation in advancing the scrubbing storehouse, has improved the cleanliness factor of device body.

2. The utility model discloses in, this rolling oil water separator, through the design of frizing device telescopic link for the frizing device can carry out certain length adjustment according to the difference of oil level when frizing, has improved the practicality of device body, through the design of oil absorption sponge, because the polymer oleophylic hydrophobicity of oil absorption sponge makes the frizing device can better carry out the frizing work, has improved the stability of device body.

3. The utility model discloses in, this rolling oil water oil separating device, through the design of heating pipe in the hydro-cylinder for the oil bottle can be to the interior long-term oil of storing the solidification of bottle add the thermal activation, and can carry out the secondary heating separation to oil when gathering oil, has further improved the practicality of device body.

Drawings

Fig. 1 is a schematic structural view of a rolling oil-water separation device provided by the utility model;

FIG. 2 is a schematic structural view of an oil squeezing device of the rolling oil-water separation device of the present invention;

fig. 3 is a perspective view of an oil scraping device of the rolling oil-water separation device provided by the utility model;

FIG. 4 is a schematic structural view of a mud-water separation cylinder of the rolling oil-water separation device provided by the present invention;

fig. 5 is a schematic view of an oil cylinder structure of the rolling oil-water separation device provided by the utility model;

fig. 6 is a perspective view of the oil cylinder of the rolling oil-water separation device provided by the utility model;

fig. 7 is a schematic structural view of a first tube cover of the rolling oil-water separation device provided by the present invention;

fig. 8 is a schematic structural diagram of a sealing device of the rolling oil-water separation device provided by the utility model.

Illustration of the drawings:

1. a device body; 2. an oil scraping bin; 3. a lead screw; 4. a decontamination plate; 5. a decontamination bin; 6. a first filter screen; 7. a water inlet pipe; 8. a sewage pipe; 9. a blowoff valve; 10. a blow-off pipe; 11. a first tube cover; 111. a telescopic pipe; 112. a spring; 113. a retractable cover; 114. a sealing device; 1141. a seal blade; 1142. a sliding groove; 1143. a limit convex rod; 1144. an outer rotating shaft; 1145. an inner rotating shaft; 12. a mud-water separation cylinder; 121. an upper half separation cylinder; 122. a sewage collecting pipe; 123. a sewage collecting pipe limiting block; 124. a third filter screen; 125. a lower half separation cylinder; 126. a limiting groove; 13. a vacuum pump; 14. a sewage tank; 15. a water pump; 16. a water filtering bin; 17. a second filter screen; 18. an air flotation generator; 19. an exhaust fan; 20. a drain pipe; 21. a drain valve; 22. an oil cylinder; 221. a ventilation housing; 222. a ventilation inner cover; 223. an oil blocking net; 224. heating a tube; 225. an oil bottle; 226. a vent; 23. a second tube cover; 24. an oil outlet pipe; 25. an oil delivery rail; 26. an oil scraping device; 261. a scraping rotating shaft; 262. a telescopic rod; 263. an oil squeezing device; 2631. a limiting block; 2632. a pressing plate; 2633. a reverse thread lead screw; 2634. an oil absorbing sponge; 2635. a support; 2636. a limiting rod; 27. an oil collecting tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-8, the rolling oil-water separation device comprises a device body 1, a mud-water separation cylinder 12, a sewage tank 14 and an oil cylinder 22, wherein a decontamination bin 5, a water filtration bin 16 and an oil scraping bin 2 are arranged in the device body 1, the decontamination bin 5, the water filtration bin 16 and the oil scraping bin 2 are sequentially connected in a conduction manner, the top end of the mud-water separation cylinder 12 is connected with a first pipe cover 11 in a threaded manner, and the top end of the oil cylinder 22 is connected with a second pipe cover 23 in a threaded manner;

a water inlet pipe 7 is connected on a top plate in the decontamination bin 5 in a conduction manner, a screw rod 3 is connected in the decontamination bin 5 in a rotation manner, a decontamination plate 4 is connected on the screw rod 3 in a rotation manner, a first filter screen 6 is arranged at the connection position of the decontamination bin 5 and a water filtering bin 16, a sewage discharge pipe 10 is connected between the decontamination bin 5 and a first pipe cover 11 in a conduction manner, a sewage discharge valve 9 is arranged at one end of the sewage discharge pipe 10 close to the decontamination bin 5, a vacuum pump 13 is connected between a sludge-water separation cylinder 12 and a sewage tank 14 in a threaded manner, a water pump 15 is connected on one side wall of the sewage tank 14 in a threaded manner, and a;

a second filter screen 17 is arranged at the connection position of the water filtering bin 16 and the oil scraping bin 2, an oil scraping device 26 is rotatably connected to the inner wall of the oil scraping bin 2, an oil conveying rail 25 is inserted into one side wall of the oil scraping bin 2, the oil conveying rail 25 penetrates and extends to the outer side of the device body 1, an oil collecting groove 27 matched with the oil scraping device 26 is welded at the top end of the oil conveying rail 25, an oil outlet pipe 24 is welded at the bottom end of the oil conveying rail 25, and a second pipe cover 23 is inserted into an opening of the oil outlet pipe 24;

the oil scraping device 26 comprises an oil scraping rotating shaft 261, a plurality of telescopic rods 262 and an oil squeezing device 263, wherein the number of the telescopic rods 262 is totally arranged, the plurality of telescopic rods 262 are welded on the surface of the oil scraping rotating shaft 261 in an annular shape, the other end of the telescopic rod 262 is rotatably connected with an oil squeezing device 263 through the rotating shaft, the oil squeezing device 263 comprises two limiting blocks 2631, a support 2635, a squeezing plate 2632, a reverse threaded lead screw 2633 and an oil absorbing sponge 2634, the oil absorbing sponge 2634 is made of a polymer oleophylic hydrophobic material, the two limiting blocks 2631, the two squeezing plates 2632 and the support 2635 are arranged in total, the reverse threaded lead screw 2633 is rotatably connected between the two limiting blocks 2631, the supports 2635 are welded at the bottom ends of the two limiting blocks 2631, a limiting rod 2636 is welded between the two supports 2635, the squeezing plate 2632 is rotatably, the extrusion plates 2632 are slidably connected to the limiting rod 2636 through limiting holes, the limiting rod 2636 is sleeved with an oil absorption sponge 2634, and the oil absorption sponge 2634 is located between the two extrusion plates 2632;

the mud-water separation cylinder 12 comprises an upper half separation cylinder 121, a lower half separation cylinder 125 and a sewage collection pipe 122, the upper half separation cylinder 121 and the lower half separation cylinder 125 are in a threaded connection structure, a sewage collection pipe limiting block 123 is welded on the outer surface wall of the sewage collection pipe 122, the number of the sewage collection pipe limiting blocks 123 is two, a limiting groove 126 matched with the sewage collection pipe limiting block 123 is formed in the inner wall of the lower half separation cylinder 125, a third filter screen 124 is arranged at the opening at the bottom end of the sewage collection pipe 122, and the sewage collection pipe 122 is clamped in the mud-water separation cylinder 12;

the oil cylinder 22 comprises an oil bottle 225 and a ventilation inner cover 222, the ventilation inner cover 222 and the oil bottle 225 are in a threaded connection structure, a heating pipe 224 is embedded and installed on a bottom plate inside the oil bottle 225, a ventilation opening 226 is formed in the surface wall of the ventilation inner cover 222 in a conduction mode, the outer surface wall of the ventilation inner cover 222 is rotatably connected with a ventilation outer cover 221 through a guide rail, and an oil blocking net 223 is embedded in the surface wall of the ventilation outer cover 221.

The first pipe cover 11 comprises a telescopic pipe 111 and a telescopic cover 113, the telescopic pipe 111 and the telescopic cover 113 are in a clamping structure, a spring 112 is welded between the telescopic pipe 111 and the telescopic cover 113, and a sealing device 114 is embedded in the telescopic cover 113;

the sealing device 114 includes an outer shaft 1144 and an inner shaft 1145, the surface of the outer shaft 1144 is rotatably connected with a sealing blade 1141 through a nut, the surface of the sealing blade 1141 is conducted with a sliding groove 1142, the surface of the inner shaft 1145 is welded with a limiting protruding rod 1143 used in cooperation with the sliding groove 1142, and the limiting protruding rod 1143 is clamped in the sliding groove 1142.

The sealing blades 1141 are provided with a plurality of sealing blades 1141 which are annularly distributed on the outer rotating shaft 1144, and the included angle of two adjacent sealing blades 1141 is equal.

The ventilation openings 226 are provided in a plurality, the ventilation openings 226 are distributed on the inner ventilation cover 222 in a surrounding manner, and the distance between two adjacent ventilation openings 226 is equal.

The oil blocking nets 223 are provided with a plurality of oil blocking nets 223, the oil blocking nets 223 are distributed on the ventilation outer cover 221 in a surrounding mode, and the distance between every two adjacent oil blocking nets 223 is equal.

An air flotation generator 18 is fixed on the bottom plate in the oil scraping bin 2 through bolts, and an air inlet of the air flotation generator 18 penetrates to the outer side of the device body 1 and is connected with an exhaust fan 19 through threads.

A drain pipe 20 is connected to one side wall of the oil scraping bin 2 in a conduction mode, and a drain valve 21 is arranged at one end of the drain pipe 20.

The surface wall inlays in the frizing storehouse 2 and establishes the servo motor who installs cooperation frizing device 26 and use, and servo motor's output is rotated and is connected with frizing pivot 261.

A servo motor used in cooperation with the reverse threaded lead screw 2633 is embedded in the limiting block 2631.

The second pipe cover 23 is also provided with a telescopic pipe 111, a spring 112, a telescopic cover 113 and a sealing device 114 which have the same structure as the first pipe cover 11, the telescopic pipe 111 and the telescopic cover 113 are of a clamping structure, the spring 112 is welded between the telescopic pipe 111 and the telescopic cover 113, and the sealing device 114 is embedded in the telescopic cover 113.

A servo motor which is matched with the screw rod 3 for use is embedded in one side wall of the decontamination bin 5.

The working principle is as follows:

when the rolling oil-water separation device is used for separation, sewage is discharged into the decontamination bin 5 through the water inlet pipe 7, solid impurities in the sewage are preliminarily filtered by the first filter screen 6 at the moment, the sewage is preliminarily filtered by the first filter screen 6, the filtered oil enters the water filtering bin 16 for deposition at the moment, impurities are further filtered by the oil-water in the first filter screen 6 through the second filter screen 17, the oil-water after the impurities are perfectly filtered enters the oil scraping bin 2 for deposition, the oil-water passes through the operation of the exhaust fan 19, the air floatation generator 18 works under the action of the exhaust fan 19 at the moment, the oil-water in the oil scraping bin 2 is preliminarily separated, the oil scraping rotating shaft 261 is driven to rotate by the servo motor, the telescopic rod 262 drives the telescopic rod 262 to rotate, the oil squeezing device 263 is driven to rotate by the telescopic rod 262, under the telescopic action of the telescopic rod, the oil squeezing device 263 can be adjusted within a certain range under the condition of different oil levels, the practicability of the device body 1 is improved, when the oil squeezing device 263 rotates to the oil surface, the oil absorbing sponge 2634 absorbs the oil on the oil surface, the servo motor drives the oil scraping rotating shaft 261, the telescopic rod 262 drives the oil squeezing device 263 to rotate to the upper side of the oil collecting tank 27, the servo motor drives the reverse threaded lead screw 2633 to rotate, the two squeezing plates 2632 are close to each other on the reverse threaded lead screw 2633 under the reverse threaded action of the reverse threaded lead screw 2633, the two squeezing plates 2632 are close to each other, the oil absorbing sponge 2634 is squeezed by the two squeezing plates 2632, the oil absorbing sponge 2634 squeezes the absorbed oil into the oil collecting tank 27, the two squeezing plates 2632 are far away from each other through the reverse rotation of the servo motor, the oil absorbing sponge 2634 performs new oil absorbing work, and the device body 1 can better perform oil scraping work due to the oleophylic and hydrophobic effects of the polymer of the oil absorbing sponge 2634, the practicability of the device body 1 is improved, oil is conveyed into the oil conveying rail 25 through the oil collecting groove 27, then the oil is conveyed into and out of the oil pipe 24 through the oil conveying rail 25, at the moment, the second pipe cover 23 is pressed, the telescopic pipe 111 and the telescopic cover 113 are elastically contracted under the elastic action of the spring 112, the second pipe cover 23 is sleeved and fixed on the oil outlet pipe 24, at the moment, the sealing device 114 is rotated, the outer shaft 1144 drives the sealing blades 1141 to rotate and open through rotating the sealing device 114, at the moment, the oil outlet pipe 24 conveys the oil into the oil bottle 225, when the oil bottle 225 is fully stored, the outer shaft 1144 drives the sealing blades 1141 to rotate and seal, the oil blocking net 223 is butted with the ventilation opening 226 through rotating the ventilation outer cover 221, at the moment, the heating pipe 224 is opened to carry out secondary heating separation on the oil in the oil bottle 225, when the heating pipe 224 is heated to a sufficient temperature, the heating pipe 224 is closed, after the oil temperature is cooled, the ventilation outer cover 221 is rotated, so that the oil blocking net 223 and the ventilation opening 226 are staggered, and the oil cylinder 22 is in a sealed state at the moment and is transported and stored.

When the rolling oil-water separation device carries out decontamination work, the screw rod 3 is driven to rotate by the servo motor, the decontamination plate 4 scrapes dirt on a decontamination bin 5 and a first filter screen 6 at the moment, the decontamination plate 4 discharges the dirt into a drain pipe 10 by opening the drain valve 9, the outer rotating shaft 1144 drives the sealing blade 1141 to rotate and open by rotating the sealing device 114, the drain pipe 10 is sleeved by the first pipe cover 11, the outer rotating shaft 1144 drives the sealing blade 1141 to rotate and seal and close by the screw connection of the sludge-water separation cylinder 12 and the vacuum pump 13, the sludge-water separation cylinder 12 and the first pipe cover 11 are fixed, the dirt in the drain pipe 10 is discharged into the sewage collecting pipe 122 at the moment, the outer rotating shaft 1144 drives the sealing blade 1141 to rotate and seal and close by reversely rotating the sealing device 114, the vacuum pump 13 carries out vacuum extrusion on the sludge-water separation cylinder 12 at the moment, so that the dirt is separated in a dry mode and a wet mode, the extruded sewage is discharged into the, at this moment, the water pump 15 extracts sewage, the sewage is discharged into the water inlet pipe 7 through the sewage pipe 8, the sewage enters the decontamination bin 5 again to perform secondary filtration and oil-water separation, the sludge-water separation cylinder 12 is rotated to separate the sludge-water separation cylinder 12 from the vacuum pump 13, the first pipe cover 11 is pressed to separate the first pipe cover 11 from the sewage discharge pipe 10 under the elastic action of the spring 112, the first pipe cover 11 is separated from the sludge-water separation cylinder 12 through the rotation of the telescopic cover 113, the upper half separation cylinder 121 is rotated to separate the upper half separation cylinder 121 from the lower half separation cylinder 125, the sewage collection pipe 122 is taken out of the lower half separation cylinder 125, the dry garbage in the sewage collection pipe 122 is subjected to centralized stacking treatment, and the cleanness of the device body 1 is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The rolling oil-water separation device comprises a device body (1), a mud-water separation cylinder (12), a sewage tank (14) and an oil cylinder (22), and is characterized in that a decontamination bin (5), a water filtering bin (16) and an oil scraping bin (2) are arranged in the device body (1), the decontamination bin (5), the water filtering bin (16) and the oil scraping bin (2) are sequentially connected in a conduction manner, the top end of the mud-water separation cylinder (12) is in threaded connection with a first pipe cover (11), and the top end of the oil cylinder (22) is in threaded connection with a second pipe cover (23);

a water inlet pipe (7) is connected to a top plate inside the decontamination bin (5) in a conduction mode, a screw rod (3) is connected to the decontamination bin (5) in a rotation mode, a decontamination plate (4) is connected to the screw rod (3) in a rotation mode, a first filter screen (6) is arranged at a connection position of the decontamination bin (5) and a water filtering bin (16), a drain pipe (10) is connected between the decontamination bin (5) and a first pipe cover (11) in a conduction mode, a drain valve (9) is arranged at one end, close to the decontamination bin (5), of the drain pipe (10), a vacuum pump (13) is connected between the sludge-water separation cylinder (12) and the sewage tank (14) in a threaded mode, a water pump (15) is connected to one side wall of the sewage tank (14) in a threaded mode, and a sewage pipe (8) is connected between the water;

a second filter screen (17) is arranged at the conduction position of the water filtering bin (16) and the oil scraping bin (2), an oil scraping device (26) is rotatably connected to the inner wall of the oil scraping bin (2), an oil conveying rail (25) is inserted into one side wall of the oil scraping bin (2), the oil conveying rail (25) penetrates through the device body (1) and extends to the outer side of the device body, an oil collecting groove (27) matched with the oil scraping device (26) is welded at the top end of the oil conveying rail (25), an oil outlet pipe (24) is welded at the bottom end of the oil conveying rail (25), and a second pipe cover (23) is inserted into an opening of the oil outlet pipe (24);

the oil scraping device (26) comprises an oil scraping rotating shaft (261), a telescopic rod (262) and an oil squeezing device (263), the telescopic rod (262) is provided with a plurality of telescopic rods (262) which are welded on the surface of the oil scraping rotating shaft (261) in an annular mode, the other end of the telescopic rod (262) is connected with the oil squeezing device (263) in a rotating mode through the rotating shaft, the oil squeezing device (263) comprises two limiting blocks (2631), a support (2635), an extrusion plate (2632), a reverse threaded lead screw (2633) and an oil absorbing sponge (2634), the oil absorbing sponge (2634) is made of a polymer oleophylic hydrophobic material, the two limiting blocks (2631), the two extrusion plate (2632) and the two support (2635) are provided with the reverse threaded lead screw (2633) in a rotating mode, the two supports (2635) at the bottom ends of the two limiting blocks (2631) are welded with the limiting rods (2636), the reverse threaded screw rod (2633) is rotatably connected with extrusion plates (2632), the extrusion plates (2632) are in sliding connection on a limiting rod (2636) through limiting holes, an oil absorption sponge (2634) is sleeved on the limiting rod (2636), and the oil absorption sponge (2634) is positioned between the two extrusion plates (2632);

the mud-water separation cylinder (12) comprises an upper half separation cylinder (121), a lower half separation cylinder (125) and a sewage collection pipe (122), the upper half separation cylinder (121) and the lower half separation cylinder (125) are in threaded connection structures, sewage collection pipe limiting blocks (123) are welded on the outer surface wall of the sewage collection pipe (122), the number of the sewage collection pipe limiting blocks (123) is two, a limiting groove (126) matched with the sewage collection pipe limiting block (123) is formed in the inner wall of the lower half separation cylinder (125), a third filter screen (124) is arranged at an opening at the bottom end of the sewage collection pipe (122), and the sewage collection pipe (122) is clamped in the mud-water separation cylinder (12);

the oil cylinder (22) comprises an oil bottle (225) and a ventilation inner cover (222), the ventilation inner cover (222) and the oil bottle (225) are in a threaded connection structure, a heating pipe (224) is embedded and installed on a bottom plate in the oil bottle (225), a ventilation opening (226) is formed in the surface wall of the ventilation inner cover (222) in a conduction mode, the outer surface wall of the ventilation inner cover (222) is rotatably connected with a ventilation outer cover (221) through a guide rail, and an oil blocking net (223) is embedded in the surface wall of the ventilation outer cover (221);

the first pipe cover (11) comprises a telescopic pipe (111) and a telescopic cover (113), the telescopic pipe (111) and the telescopic cover (113) are of a clamping structure, a spring (112) is welded between the telescopic pipe (111) and the telescopic cover (113), and a sealing device (114) is embedded in the telescopic cover (113);

the sealing device (114) comprises an outer rotating shaft (1144) and an inner rotating shaft (1145), wherein the surface of the outer rotating shaft (1144) is rotatably connected with sealing blades (1141) through nuts, the surface of each sealing blade (1141) is communicated with a sliding groove (1142), a limiting convex rod (1143) matched with the sliding groove (1142) for use is welded on the surface of the inner rotating shaft (1145), and the limiting convex rod (1143) is clamped in the sliding groove (1142).

2. The rolling oil-water separation device according to claim 1, wherein a plurality of sealing blades (1141) are arranged, the plurality of sealing blades (1141) are annularly distributed on the outer rotating shaft (1144), and included angles of two adjacent sealing blades (1141) are equal.

3. The rolling oil-water separation device as claimed in claim 1, wherein a plurality of the ventilation openings (226) are arranged, the ventilation openings (226) are distributed on the ventilation inner cover (222) in a surrounding manner, and the distance between two adjacent ventilation openings (226) is equal.

4. The rolling oil-water separation device according to claim 1, wherein a plurality of oil blocking nets (223) are arranged, the plurality of oil blocking nets (223) are distributed on the ventilation outer cover (221) in a surrounding manner, and the distance between two adjacent oil blocking nets (223) is equal.

5. The rolling oil-water separation device according to claim 1, wherein an air flotation generator (18) is fixed on an inner bottom plate of the oil scraping bin (2) through bolts, and an air inlet of the air flotation generator (18) penetrates to the outer side of the device body (1) and is connected with an exhaust fan (19) through threads.

6. The rolling oil-water separation device according to claim 1, wherein a drain pipe (20) is connected to one side wall of the oil scraping bin (2) in a conduction manner, and a drain valve (21) is arranged at one end of the drain pipe (20).

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