CN210559704U

CN210559704U - Oil-water separation device

Info

Publication number: CN210559704U
Application number: CN201921073695.0U
Authority: CN
Inventors: 张跃龙; 陈菲菲; 谭文龙; 林振华; 王晨
Original assignee: Fuzhou University; Fujian Zijin Copper Co Ltd
Current assignee: Fuzhou University; Fujian Zijin Copper Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-19
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses an oil-water separation device, including the filter equipment who is equipped with the scraper blade, through the transmission shaft interconnect and the top be equipped with the water wheels of sewage tap and be equipped with the sump oil collection device in oil area, the bottom that sets gradually along the sump oil flow direction is equipped with the static groove of delivery port, the baffle that is equipped with the oil spilling passageway and the separating tank that communicates with the oil spilling passageway, water wheels and sump oil collection device locate respectively in static groove and separating tank, the delivery port pipeline links in proper order has the elevator pump and is located the second tap of water wheels top, the static groove links has the filter that is located the water wheels below, even there is the separation plate that sets up towards the top direction slope of baffle between filter and the baffle, the oil spilling passageway is located between separation plate and the bottom of static groove, the height of oil spilling passageway relative to ground is greater than the minimum height of; through filter, standing groove, separation plate, oil spilling passageway, second tap and elevator pump, realize improving oil-water separation precision, oil-water separation rate and the effect of water wheel drive.

Description

Oil-water separation device

Technical Field

The utility model relates to an oil-water separation technical field, more specifically say, it relates to an oil-water separation device.

Background

At present, in the process of purifying industrial wastewater, because oil and water are two types of liquid which are not mutually soluble and oil and water must be separated according to the requirements of process or environmental protection, an oil-water separator is required to remove oil in the industrial wastewater; the oil-water separator is widely applied to the industries of chemical industry, oil fields, refinery plants and the like, and the separation of oil and water is realized by methods such as a gravity method, adsorption separation, air flotation separation and the like. At present, the belt-type oil-water separator which is commonly used by people and takes electric energy as driving force has the problems of complex equipment structure and low separation rate; in order to make the purification of waste oil water meet the standard, the existing oil-water separator needs to be started all day long to continuously perform oil-water separation operation, consumes a large amount of electric energy and causes the defect of overhigh use cost.

At present, a Chinese patent with a publication number of CN202072568U on the market discloses a roller type oil-water separation device, which comprises a sewage tap, a water wheel, a bearing, a dirty oil collecting device, a primary filtering device, a secondary filtering device and a dirty oil collector; the water wheel is connected with the dirty oil collecting device through a transmission shaft, the dirty oil collecting device is wrapped by an oil belt, and the primary filtering device is provided with a scraper tightly attached to the oil belt; the primary filtering device is communicated to the upper part of the secondary filtering device through a pipeline; an oil outlet is arranged on one side of the bottom of the secondary filtering device, and a water outlet is arranged below the secondary filtering device; the oil outlet is communicated with a sump oil collector through a pipeline.

The roller type oil-water separation device takes a sewage source flowing out of the sewage faucet as the driving force for the rotation of the water wheel, thereby realizing energy conservation and consumption reduction; through two-stage filtration, the ore has large oil collection area, and the oil collection rate is improved; although the device takes the gravity of a sewage source as a driving force, the purposes of no power consumption, energy conservation and consumption reduction are realized; however, in the later stage of oil-water separation, along with the flow of the sewage water source gradually reduces, the driving force of the water wheel will not be enough to drive the oil belt to rotate, the sewage in the sewage tank cannot be separated by the oil belt, and the oil discharged through the oil discharge port still contains more water and impurities, so that the problem of oil collection rate reduction is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil-water separation device, reasonable and cyclic utilization isolated liquid has the advantage that the power consumption is low, collection oil precision and collection oil rate are high.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an oil-water separation device comprises a water wheel, a transmission shaft, a dirty oil collecting device and a filtering device, wherein the water wheel is connected with the dirty oil collecting device through the transmission shaft, an oil belt is arranged outside the dirty oil collecting device, a scraper tightly attached to the oil belt is arranged in the filtering device, a sewage tap is arranged above the water wheel, the oil-water separation device also comprises a static tank, a partition plate and a separation tank which are sequentially arranged along the flowing direction of dirty oil, the water wheel and the dirty oil collecting device are respectively arranged in the static tank and the separation tank, the partition plate is provided with an oil overflow channel communicated with the static tank and the separation tank, the bottom of the static tank is provided with a water outlet, a water outlet pipeline is connected with a second tap, the second tap is positioned above the water wheel, the pipeline of the water outlet is connected with a lifting pump, the static tank is connected with a filter plate, and the filter plate is positioned below the water, the oil spilling channel is positioned between the separation plate and the bottom of the standing groove, and the height of the oil spilling channel relative to the ground is greater than the lowest height of the filter plate relative to the ground.

Further setting: the height of the second faucet relative to the ground is greater than the height of the sewage faucet relative to the ground.

Further setting: the oil spilling channel is obliquely arranged, and the height of one end, relative to the ground, of the oil spilling channel, which is positioned at the static groove, is higher than the height of the oil spilling channel, relative to the ground, which is positioned at the separation groove.

Further setting: and the oil spilling channel is connected with a first filter screen.

Further setting: the water outlet is connected with a second filter screen.

Further setting: the utility model discloses a separation tank, including water wheels, baffle, gyro wheel, oil scraper, baffle, oil deflector, baffle, water wheels with be connected with between the baffle and be used for collecting remaining sump oil on the baffle gyro wheel, the gyro wheel is the setting of round platform shape, the gyro wheel with the coaxial rotation of water wheels, the baffle is close to a terminal surface of sewage tap with the side of gyro wheel is hugged closely, the top of baffle is provided with and is used for striking off the oil scraper of the oil slick on the gyro wheel side, the oil scraper is close to the one end of separation tank is connected with the oil deflector, the oil deflector court the tank bottom slope of separation tank sets up, oil deflector.

Further setting: the oil scraper is an L-shaped plate and a connecting rod, the L-shaped plate faces the bottom of the separating tank and is arranged obliquely downwards, the vertical section of the L-shaped plate is close to one side of the separating tank and the partition plates are connected through the connecting rod, the transverse section of the L-shaped plate is abutted to the side face of the roller, and the transverse section of the L-shaped plate is close to one side of the separating tank and is connected with the oil guide plate.

In summary, the utility model realizes the effect of filtering the primary residue on the sump oil and water through the filter plate and the separation plate, thereby improving the integral oil collecting precision; the oil-water primary separation is realized through the static tank, the secondary oil-water separation is realized through the inclined arrangement of the separation plate towards the top direction of the partition plate and the oil overflow channel, the water content of dirty oil entering the separation tank is reduced, and the integral oil-water separation rate and the oil-water separation precision are improved; in addition, the separation plate is obliquely arranged towards the top of the partition plate, so that dirty oil, residues and water falling onto the separation plate are ensured to obliquely flow onto the filter plate through the separation plate for filtering; the water outlet, the second faucet and the lifting pump are used for enhancing the driving force of the water wheel and performing secondary filtering and separation on sewage, so that the oil-water separation precision is improved; avoid along with the flow in sewage water source reduces gradually, the not enough of the drive power of water wheels, and use when just the later stage water yield reduces because the elevator pump, power consumption is few.

Drawings

FIG. 1 is a partial cross-sectional view of an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of a standing groove in an embodiment of the present invention.

In the figure: 1. a water wheel; 2. a drive shaft; 3. a dirty oil collecting device; 4. a filtration device; 5. a sewage tap; 6. a static placement groove; 7. a partition plate; 8. a separation tank; 9. an oil spill passage; 10. a water outlet; 11. a second faucet; 12. a lift pump; 13. a filter plate; 14. a separation plate; 15. a first filter screen; 16. a second filter screen; 17. a roller; 18. an oil wiper; 19. an oil guide plate; 20. An L-shaped plate; 21. a connecting rod; 22. a third filter screen; 23. and (4) a drainage groove.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in fig. 1, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The utility model discloses the most crucial design lies in: the filtering plate 13 and the separating plate 14 are used for filtering the primary residues of the dirty oil and the water, so that the integral oil collecting precision is improved; the preliminary separation of oil and water is realized through the static tank 6; the separation plate 14 is obliquely arranged towards the top of the partition plate 7, so that the thickness of an oil layer on the upper part of the standing tank 6 is increased, the oil overflow channel 9 is positioned between the separation plate 14 and the bottom of the standing tank 6, the height of the oil overflow channel 9 relative to the ground is greater than the lowest height of the filter plate 13 relative to the ground, the water content of dirty oil entering the separation tank 8 is reduced, secondary oil-water separation is realized, and the integral oil-water separation rate and the oil-water separation precision are improved; in addition, the separation plate 14 is obliquely arranged towards the top of the partition plate 7, so that the effect of filtering dirty oil, residues and water falling onto the separation plate 14 and obliquely flowing onto the filter plate 13 through the separation plate 14 is also ensured; the driving force of the water wheel 1 is enhanced and the sewage is filtered and separated again through the water outlet 10, the second faucet 11 and the lifting pump 12, so that the oil-water separation precision is improved; avoid the deficiency of the driving force of the water wheel 1 along with the gradual reduction of the flow of the sewage source, and because the lift pump 12 is used only when the later water quantity is reduced, the electric energy consumption is less

Referring to fig. 1 to 2, an oil-water separation device comprises a water wheel 1, a transmission shaft 2, a dirty oil collecting device 3 and a filtering device 4, wherein the water wheel 1 and the dirty oil collecting device 3 are connected through the transmission shaft 2, an oil belt is arranged outside the dirty oil collecting device 3, a scraper tightly attached to the oil belt is arranged in the filtering device 4, a dirty water tap 5 is arranged above the water wheel 1, the oil-water separation device further comprises a standing groove 6, a partition plate 7 and a separating groove 8 which are sequentially arranged along the flowing direction of dirty oil, the water wheel 1 and the dirty oil collecting device 3 are respectively arranged in the standing groove 6 and the separating groove 8, the partition plate 7 is provided with an oil overflow channel 9 communicating the standing groove 6 and the separating groove 8, the bottom of the standing groove 6 is provided with a water outlet 10, the water outlet 10 is connected with a second tap 11 through a pipeline, the second tap 11 is arranged above the water wheel 1, the water outlet 10 is, the filter 13 is located waterwheel 1 below, a separation plate 14 which is obliquely arranged towards the top direction of the partition plate 7 is connected between the filter 13 and the partition plate 7, the oil spilling channel 9 is located between the separation plate 14 and the bottom of the standing groove 6, and the height of the oil spilling channel 9 relative to the ground is greater than the lowest height of the filter 13 relative to the ground.

As can be seen from the above description, by opening the sewage tap 5 disposed above the water wheel 1, the impulsive force of sewage is utilized to provide a rotational driving force to the water wheel 1 disposed in the stationary tank 6, and the rotation of the water wheel 1 drives the rotation of the dirty oil collecting device 3 connected to the water wheel 1 through the transmission shaft 2; the dirty oil and the water on the sewage tap 5 fall into the water wheel 1, fall into the standing tank 6 through the water wheel 1, and realize the effect of primary filtering on the dirty oil and the water through the filter plate 13 connected to the standing tank 6, so that the effect of integral oil collection precision is improved; the sump oil and water after primary filtration are subjected to standing to separate oil from water, then, through a separation plate 14 which is connected between a filter plate 13 and a separation plate 7 and is obliquely arranged towards the top direction of the separation plate 7, an oil layer with larger thickness is arranged at the upper part of a standing tank 6 close to the separation plate 14 and is positioned between the separation plate 14 and the bottom of the standing tank 6 through an oil overflow channel 9, the height of the oil overflow channel 9 relative to the ground is greater than the lowest height of the filter plate 13 relative to the ground, the effect that the oil layer at the upper part of the standing tank 6 close to the separation plate 14 flows into a separation tank 8 from the oil overflow channel 9 is realized, the content of water entering the separation tank 8 is reduced, and the oil-water separation rate and the oil-water separation precision of a subsequent sump; in addition, the separating plate 14 is obliquely arranged towards the top of the partition plate 7, so that the effect of filtering dirty oil, residues and water which flow down to the separating plate 14 through the sewage faucet 5 and flow onto the filtering plate 13 obliquely through the separating plate 14 is ensured.

In the later stage of oil-water separation, when the flow of a sewage water source is gradually reduced, the second faucet 11 and the lifting pump 12 are opened, water standing in the standing groove 6 is lifted to the second faucet 11 from the water outlet 10 formed in the bottom of the standing groove 6, and the water falls onto the water wheel 1 through the second faucet to provide secondary driving force for the water wheel 1, so that the effects of enhancing the driving force of the water wheel 1 and performing secondary filtration on the water are achieved, and the effect of improving the oil-water separation precision is further achieved; because the lift pump 12 is only used when the water quantity is reduced in the later period, the functions of enhancing the integral oil-water separation rate and the separation precision while avoiding excessive power consumption are achieved.

Further: the height of the second tap 11 relative to the ground is greater than the height of the sewage tap 5 relative to the ground.

As can be seen from the above description, the height of the second faucet 11 relative to the ground is greater than the height of the sewage faucet 5 relative to the ground, and the effect of enhancing the driving force provided by the second faucet 11 to the water wheel 1 is further achieved by increasing the falling height of the standing water to enhance the impact force of the water on the water wheel 1.

Further: the oil spilling channel is obliquely arranged, and the height of one end of the oil spilling channel, which is positioned at the static groove 6, relative to the ground is higher than the height of the oil spilling channel, which is positioned at the separation groove 8, relative to the ground.

As can be seen from the above description, the oil spilling passage is obliquely arranged, and the height of one end of the oil spilling passage, which is located at the static tank 6, relative to the ground is higher than the height of the oil spilling passage, which is located at the separation tank 8, relative to the ground, so that the dirty oil can conveniently and completely flow into the separation tank 8, and the residual dirty oil in the separation tank 8 is avoided; further improving the integral oil-water separation rate.

Further: the oil spilling passage 9 is connected with a first filter screen 15.

From the above description, the oil-water entering the separation tank 8 is filtered for the second time by the first filter screen 15 connected to the oil spilling passage 9, so as to further improve the oil collecting precision and the oil collecting rate of the whole oil collecting device.

Further: the water outlet 10 is connected with a second filter 16.

As can be seen from the above description, the second filter 16 connected to the water outlet 10 filters the water entering the second faucet 11, so as to prevent impurities from affecting the second faucet 11 and the smoothness of the water outlet of the pipeline between the second faucet 11 and the water outlet pipe.

Further: a roller 17 used for collecting residual dirty oil on the separation plate 14 is connected between the water wheel 1 and the partition plate 7, the roller 17 is arranged in a circular truncated cone shape, the roller 17 and the water wheel 1 rotate coaxially, one end face, close to the sewage faucet 5, of the separation plate 14 is attached to the side face of the roller 17, an oil scraper 18 used for scraping floating oil on the side face of the roller 17 is arranged at the top of the partition plate 7, one end, close to the separation groove 8, of the oil scraper 18 is connected with an oil guide plate 19, the oil guide plate 19 is arranged in an inclined mode towards the bottom of the separation groove 8, and one end, located at the separation groove 8, of the oil guide plate 19 is connected.

As can be seen from the above description, the roller 17 connected between the water wheel 1 and the partition plate 7 and disposed in a truncated cone shape is closely attached to one end surface of the separation plate 14 near the sewage faucet 5, so as to achieve the function of scraping off the residual dirty oil on the separation plate 14, and as the roller 17 rotates, the dirty oil and the residue attached to the roller 17 rotate to the oil scraper 18 disposed at the top of the partition plate 7, and then flow onto the oil guide plate 19 connected to one end of the oil scraper 18 near the separation tank 8 after being scraped by the oil scraper 18, and then, as the oil guide plate 19 is disposed obliquely toward the bottom of the separation tank 8, the dirty oil and the residue entering the oil guide plate 19 flow into the separation tank 8 after being filtered by the third filter screen, so as to achieve the functions of scraping off the residual dirty oil on the separation plate 14, filtering the residue, and guiding the dirty oil into the separation tank 8, thereby further enhancing the oil.

Further: the oil wiper 18 is an L-shaped plate 20 and a connecting rod 21, the L-shaped plate 20 is obliquely and downwards arranged towards the bottom of the separating tank 8, one side of the vertical section of the L-shaped plate 20, which is close to the separating tank 8, is connected with the partition plate 7 through the connecting rod 21, the transverse section of the L-shaped plate 20 is abutted to the side surface of the roller 17, and one side of the transverse section of the L-shaped plate 20, which is close to the separating tank 8, is connected with the oil guide plate 19.

As can be seen from the above description, when the dirty oil and the residue attached to the roller 17 rotate with the roller 17 to the oil wiper 18, firstly, the dirty oil attached to the side surface of the roller 17 is scraped by the L-shaped plate 20 whose lateral section abuts against the side surface of the roller 17; then, because the L-shaped plates 20 are disposed obliquely downward toward the bottom of the separation tank 8, the scraped dirty oil will flow down from the cross sections of the L-shaped plates 20 onto the oil guide plate 19, and finally flow into the separation tank 8 through the oil guide plate 19.

Referring to fig. 1 to 2, an oil-water separation device provided by the present invention, as shown in fig. 1, includes a water wheel 1, a transmission shaft 2, a dirty oil collecting device 3 and a filtering device 4; water wheels 1 and sump oil collection device 3 are connected through transmission shaft 2, are equipped with the oil zone outside sump oil collection device 3, are equipped with in the filter equipment 4 and hug closely in the scraper blade in oil zone, and water wheels 1 top is equipped with sewage tap 5.

As shown in fig. 1 and 2, the sewage treatment device further comprises a standing tank 6, a partition plate 7 and a separation tank 8 which are sequentially arranged along the flowing direction of the sewage, wherein the water wheel 1 and the sewage collecting device 3 are respectively arranged in the standing tank 6 and the separation tank 8; the baffle 7 is provided with an oil spilling channel 9 communicating the static groove 6 and the separation groove 8, and the oil spilling channel 9 is connected with a first filter screen 15; a water outlet 10 is formed at the bottom of the standing groove 6, and the water outlet 10 is connected with a second filter screen 16; the water outlet 10 is connected with a second faucet 11 through a pipeline, the second faucet 11 is positioned above the water wheel 1, and the height of the second faucet 11 relative to the ground is greater than that of the sewage faucet 5 relative to the ground; a lifting pump 12 is connected to a pipeline between the water outlet 10 and the second faucet 11; the standing groove 6 is connected with a filter plate 13, and the filter plate 13 is positioned below the water wheel 1; a separation plate 14 which is obliquely arranged towards the top direction of the partition plate 7 is connected between the filter plate 13 and the partition plate 7, the oil spilling channel 9 is positioned between the separation plate 14 and the bottom of the standing groove 6, and the height of the oil spilling channel 9 relative to the ground is greater than the lowest height of the filter plate 13 relative to the ground;

as shown in fig. 1, a roller 17 for collecting the dirty oil remaining on the separation plate 14 is connected between the water wheel 1 and the partition plate 7; the roller 17 is arranged in a circular truncated cone shape, the roller 17 and the water wheel 1 rotate coaxially, and one end face of the separating plate 14 close to the sewage tap 5 is tightly attached to the side face of the roller 17; the top of the clapboard 7 is provided with an oil wiper 18 for wiping off floating oil on the side surface of the roller 17; the oil wiper 18 is composed of an L-shaped plate 20 and a connecting rod 21, the L-shaped plate 20 is obliquely and downwards arranged towards the bottom direction of the separating groove 8, one side, close to the separating groove 8, of the vertical section of the L-shaped plate 20 is connected with the partition plate 7 through the connecting rod 21, the transverse section of the L-shaped plate 20 is abutted to the side face of the roller 17, and a drainage groove 23 is formed in the transverse section of the L-shaped plate 20 towards the separating groove 8, so that sump oil can conveniently flow into the oil guide plate 19; one side of the transverse section of the L-shaped plate 20 close to the separation groove 8 is connected with an oil guide plate 19; the oil guide plate 19 is obliquely arranged towards the bottom of the separation tank 8, and one end, located at the separation tank 8, of one end of the oil guide plate 19 is connected with a third filter screen 22.

In conclusion, compared with the prior art, the invention realizes the function of filtering the primary residue of the dirty oil and the water through the filter plate 13 and the separation plate 14, thereby improving the integral oil collecting precision; the oil-water primary separation is realized through the static tank 6, the separation plate 14 is obliquely arranged towards the top of the partition plate 7, the thickness of an oil layer on the upper part of the static tank 6 is increased, the oil overflow channel 9 is positioned between the separation plate 14 and the bottom of the static tank 6, the height of the oil overflow channel 9 relative to the ground is greater than the lowest height of the filter plate 13 relative to the ground, the water content of dirty oil entering the separation tank 8 is reduced, the secondary oil-water separation is realized, and the integral oil-water separation rate and the oil-water separation precision are improved; in addition, the separation plate 14 is obliquely arranged towards the top of the partition plate 7, so that the effect of filtering dirty oil, residues and water falling onto the separation plate 14 and obliquely flowing onto the filter plate 13 through the separation plate 14 is also ensured; the driving force of the water wheel 1 is enhanced and the sewage is filtered and separated again through the water outlet 10, the second faucet 11 and the lifting pump 12, so that the oil-water separation precision is improved; avoid along with the flow in sewage water source reduces gradually, the not enough of the drive power of waterwheel 1, and use when just the later stage water yield reduces because elevator pump 12, the power consumption is few.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an oil-water separator, includes water wheels, transmission shaft, sump oil collection device and filter equipment, water wheels with sump oil collection device passes through the transmission shaft is connected, sump oil collection device is equipped with the oil zone outward, be equipped with in the filter equipment hug closely in the scraper blade in oil zone, the water wheels top is equipped with sewage tap, its characterized in that: the sewage treatment device also comprises a static tank, a partition plate and a separation tank which are sequentially arranged along the flowing direction of the sewage oil, the water wheel and the sewage oil collecting device are respectively arranged in the static tank and the separation tank, the clapboard is provided with an oil spilling channel which is communicated with the static groove and the separation groove, the bottom of the static groove is provided with a water outlet, the pipeline of the water outlet is connected with a second tap which is positioned above the water wheel, the pipeline of the water outlet is connected with a lift pump, the standing groove is connected with a filter plate which is positioned below the water wheel, a separation plate which is obliquely arranged towards the top direction of the separation plate is connected between the filter plate and the separation plate, the oil spilling channel is positioned between the separation plate and the bottom of the standing groove, and the height of the oil spilling channel relative to the ground is larger than the lowest height of the filter plate relative to the ground.

2. The oil-water separator according to claim 1, wherein: the height of the second faucet relative to the ground is greater than the height of the sewage faucet relative to the ground.

3. The oil-water separator according to claim 1, wherein: the oil spilling channel is obliquely arranged, and the height of one end, relative to the ground, of the oil spilling channel, which is positioned at the static groove, is higher than the height of the oil spilling channel, relative to the ground, which is positioned at the separation groove.

4. The oil-water separator according to claim 1, wherein: and the oil spilling channel is connected with a first filter screen.

5. The oil-water separator according to claim 1, wherein: the water outlet is connected with a second filter screen.

6. The oil-water separator according to claim 1, wherein: the utility model discloses a separation tank, including water wheels, baffle, gyro wheel, oil scraper, baffle, oil deflector, baffle, water wheels with be connected with between the baffle and be used for collecting remaining sump oil on the baffle gyro wheel, the gyro wheel is the setting of round platform shape, the gyro wheel with the coaxial rotation of water wheels, the baffle is close to a terminal surface of sewage tap with the side of gyro wheel is hugged closely, the top of baffle is provided with and is used for striking off the oil scraper of the oil slick on the gyro wheel side, the oil scraper is close to the one end of separation tank is connected with the oil deflector, the oil deflector court the tank bottom slope of separation tank sets up, oil deflector.

7. The oil-water separator according to claim 6, wherein: the oil scraper is an L-shaped plate and a connecting rod, the L-shaped plate faces the bottom of the separating tank and is arranged obliquely downwards, the vertical section of the L-shaped plate is close to one side of the separating tank and the partition plates are connected through the connecting rod, the transverse section of the L-shaped plate is abutted to the side face of the roller, and the transverse section of the L-shaped plate is close to one side of the separating tank and is connected with the oil guide plate.