An oil-water separator with automatic cleaning function

Abstract

The present invention belongs to the technical field of oil-water separation devices, and in particular to an oil-water separator with an automatic cleaning function. Aiming at the problem that an oil layer penetrating the separation tank will be formed at a certain height of the barrel wall after a long period of separation, which makes cleaning difficult, the following scheme is proposed, including a separation tank body with an internal cavity opening upward, the separation tank body is composed of a cylindrical barrel and a rectangular box body of equal height, and a vertical arc baffle is fixed at the junction of the interior of the separation tank body, and the radius of the arc baffle is the same as the radius of the cylinder; there is a gap between the bottom end of the arc baffle and the bottom inner wall of the separation tank body, and the arc baffle divides the interior of the separation tank body into a separation chamber and a collection chamber. The present invention can ensure that only water passes through the hole below the arc baffle during the separation process, so that the oil layer will always be kept in the separation chamber of the cylindrical barrel structure, and the oil attached to the inner wall of the separation tank body can be cleaned in time with the help of a slowly rotating scraper.

Description

Technical Field

[0001] The invention relates to the technical field of oil-water separators, and in particular to an oil-water separator with an automatic cleaning function. Background Art

[0002] Due to environmental protection requirements, any sewage must be treated to a certain standard before it can be discharged. In industry, oil-water separation devices are often used to treat sewage. The principle is to use the density difference or chemical properties of water and oil, and use gravity sedimentation principles or other physical and chemical reactions to remove impurities or complete the separation of oil and water.

[0003] After searching, a Chinese patent application No. 201410028679.5 disclosed a kitchen wastewater oil-water separation device. Although the device is provided with multiple chambers for sedimentation, stratification and filtration, which brings convenience to the subsequent cleaning work, such complex separation devices are provided with many partitions for crossing over and blocking the oil body inside, which will produce an oil layer that is difficult to clean in the later stage; and the rugged shape and position of the oil layer bring difficulties to the later cleaning work. Therefore, we propose a cleaning device and a matching oil-water separator that can automatically clean the oil layer on the inner wall of the tank. Summary of the invention

[0004] In view of the technical problem in the prior art that after a long period of separation, an oil layer penetrating the separation tank will be formed at a certain height of the barrel wall, causing difficulty in cleaning, the present invention adopts the following technical solution:

[0005] An oil-water separator with automatic cleaning function, comprising a separation tank body with an inner cavity opening upward, the separation tank body is composed of a cylindrical barrel and a rectangular box body of equal height, and a vertical arc-shaped baffle is fixed at the junction of the interior of the separation tank body, the radius of the arc-shaped baffle is the same as the radius of the cylinder, that is, the inner wall of the separation tank body is approximately an integral cylindrical structure; and a gap is left between the bottom end of the arc-shaped baffle and the bottom inner wall of the separation tank body, the arc-shaped baffle divides the interior of the separation tank body into a separation chamber and a collection chamber, and an oil storage barrel is suspended in the collection chamber, an oil passage pipeline is plugged into the circumferential outer wall of the oil storage barrel near the arc-shaped baffle, and a strip-shaped plug hole matching the cross-sectional shape of the oil passage pipeline is opened on the arc-shaped baffle, and an oil drain pipe is plugged into the bottom of the oil storage barrel;

[0006] A top cover plate is fixed to the top of the separation tank body, and a feed pipe of a "Z"-shaped structure is plugged into the end of the top cover plate away from the oil storage barrel;

[0007] A sealing gate capable of vertical sliding is provided on a surface of one side of the arc-shaped baffle away from the feed pipe;

[0008] An annular base plate is fixed near the top of the circumferential inner wall of the separation chamber of the separation tank body, and a rotatable driven gear ring is clamped on the circumferential inner side of the annular base plate. The cross-section of the driven gear ring is an S-shaped structure, and two cleaning mechanisms that are centrally symmetrical to each other are fixed to the lower surface of the driven gear ring. The cleaning mechanism includes a scraper blade attached to the inner wall of the separation chamber of the separation tank body.

[0009] A further configuration is that a vertical water layer height limit plate is fixed on the bottom inner wall of the separation tank body in the middle of the rectangular box body, and the top end of the water layer height limit plate is 10cm-30cm lower than the lower end of the oil pipe; the side of the water layer height limit plate away from the oil storage barrel is the pumping area, and the bottom of the separation tank body is located in the pumping area and a drainage pipe is connected to it; by setting up the water layer height limit plate, it is possible to avoid the water layer overflowing into the oil storage barrel due to the excessively fast speed of the injected oil-water mixture during stratification.

[0010] A further configuration is that an observation window is provided near the middle of the front side of the separation tank body, and horizontal scale lines are provided on the circumferential inner wall of the separation tank body opposite to the observation window. The internal oil-water separation state can be clearly observed through the provided horizontal scale lines and the observation window, so that the feed speed can be adjusted so that the stratification speed is adapted to the overflow speed.

[0011] A further configuration is that a wear-resistant rubber layer is provided on the side of the sealing gate close to the arc baffle, and a magnet 1 is embedded inside the sealing gate, and a permanent magnet that is attracted to magnet 1 is embedded on the side of the arc baffle close to the sealing gate; by providing the wear-resistant rubber layer and the permanent magnet, the sealing effect of the sealing gate can be better, and the oil-water mixture can be prevented from passing through the sealing gate in the initial mixing stage, ensuring that no oil stains remain on the inner wall of the collection chamber in the later stage.

[0012] A further configuration is that two symmetrical sliding hangers are fixed to the top of the sealing gate, and the same bow-shaped connecting rod is fixed to the top of the two sliding hangers, and an electric push rod is arranged between the lower surface of the bow-shaped connecting rod and the top cover plate; the sealing gate can be automatically lifted and lowered by the arranged electric push rod, and it runs smoothly, and the oil stains on its surface can be scraped and washed while pulling upwards.

[0013] A further configuration is that a convex-moon-shaped inspection hole is opened in the middle of the top cover plate, and a cover plate is arranged on the inspection hole; a motor frame is fixed to the upper surface of the top cover plate near the side of the feed pipe, and a driving motor is fixed to the top of the motor frame by bolts, and a driving gear is fixed to the top of the output shaft of the driving motor; two mutually parallel bearings are embedded in the top cover plate near the oblique lower part of the driving gear, and a transmission rod 1 and a transmission rod 2 which are parallel to each other are rotatably connected in the two bearings, a driven gear 1 and a helical gear are fixed to the upper and lower ends of the transmission rod 2, and the helical gear and the driven gear ring are meshed with each other; the driving gear and the driven gear 1 are meshed with each other; and a rotational power output is provided for the overall rotation of the cleaning mechanism.

[0014] A further arrangement is that the cleaning mechanism also includes two boss blocks fixed on the lower surface of the driven gear ring near the inner edge and distributed symmetrically with each other, and the outer wall of the boss block is slidably clamped with a vertical suspension rod, the top of the suspension rod is provided with a T-shaped groove, the bottom end of the suspension rod is fixed with a fixed block, and the side of the fixed block is provided with a stop block that can be adjusted horizontally, two tensioning screws passing through the fixed block are fixed on the side of the stop block, and the circumferential outer wall of the tensioning screw is screwed with a self-locking nut, the scraper blade is clamped between the stop block and the fixed block, and a positioning oblique screw hole is provided on the suspension rod, a positioning bolt is screwed in the positioning oblique screw hole, and a positioning hole matching the diameter of the positioning bolt is provided on the scraper blade; the curvature of the scraper blade is close to the circumferential inner wall of the separation tank body; the detachable scraper blade is provided, so that the overall disassembly of the cleaning mechanism is more convenient.

[0015] A further configuration is that a rotating positioning plate is screwed to the end of the boss block; and a mudguard is also arranged between the two self-locking nuts.

[0016] A further arrangement is that a driven gear 2 and a rotary sprinkler block are respectively fixed to the upper and lower ends of the transmission rod 1, and the top of the rotary sprinkler block is located obliquely below the discharge port of the feed pipe, the rotary sprinkler block is generally conical in structure, and the conical surface of the rotary sprinkler block is provided with a plurality of through holes penetrating the bottom end, and the outer wall of the rotary sprinkler block is fixed with a plurality of inclined guide plates with a radial structure; a floating anti-collision baffle is provided on the side of the outer wall of the rotary sprinkler block away from the feed pipe, and guide ear plates are fixed on both sides of the anti-collision baffle near the top, and guide slide rods are slidably inserted in the guide ear plates, and the top ends of the two guide slide rods are fixed to the top inner wall of the top cover plate; a buffer plate facing the feed pipe is fixed to the lower surface of the top cover plate.

[0017] A further configuration is that a sewage outlet is opened near the middle of the bottom of the separation tank body, and a sewage valve is provided at the bottom of the sewage outlet; the sewage valve can stir the internal water when discharging sludge, allowing the sludge to slowly accumulate in the middle for unified discharge.

[0018] The beneficial effects of the present invention are:

[0019] 1. By setting up a cylindrical barrel-shaped separation chamber in conjunction with a sealing gate, it is possible to ensure that only water passes through the holes below the arc-shaped baffle during the separation process, so that the oil layer is always kept in the cylindrical barrel-shaped separation chamber. The oil attached to the inner wall of the separation tank can be cleaned in time with the slowly rotating scraper.

[0020] 2. By setting up a water layer height limit plate, it is possible to prevent the water layer from overflowing into the oil storage barrel due to the oil-water mixture being injected too quickly during stratification.

[0021] 3. Through the mud guard provided, after the cleaning mechanism carries the scraper blade to rotate one circle, you only need to loosen the positioning bolt, and then pull the scraper blade upwards to clean the oil and sludge on its surface; then it is convenient to clean again.

[0022] 4. The rotary sprinkler block and anti-impact baffle can quickly disperse the oil-water mixture that flows in at high speed and in large volume, reduce its impact kinetic energy, and make the ripples aroused by the oil-water mixture as small as possible when it enters the separation tank, which is conducive to rapid stratification. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an oil-water separator with automatic cleaning function proposed by the present invention;

[0024] Figure 2 A top view of an oil-water separator with automatic cleaning function proposed by the present invention;

[0025] Figure 3 An oil-water separator with automatic cleaning function proposed by the present invention Figure 2 Partial cross-sectional view along line AA;

[0026] Figure 4 This is a schematic diagram of the structure of a gate in an oil-water separator with an automatic cleaning function proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the assembly structure of a cleaning mechanism in an oil-water separator with an automatic cleaning function proposed by the present invention;

[0028] Figure 6 This is an overall top view of a cleaning mechanism in an oil-water separator with automatic cleaning function proposed by the present invention before installation;

[0029] Figure 7 A schematic diagram of the three-dimensional structure of a rotary spray block of an oil-water separator with an automatic cleaning function proposed by the present invention;

[0030] Figure 8This is a three-dimensional structural schematic diagram of a scraper in an oil-water separator with automatic cleaning function proposed by the present invention when it is ready to be pulled out for mud removal.

[0031] In the figure: 1, separation tank; 2, feed pipe; 3, transmission rod 1; 4, drive motor; 5, cover plate; 6, cleaning mechanism; 601, T-shaped slide; 602, stop block; 603, mud guard; 604, mud scraper; 605, fixed block; 606, tension screw; 607, positioning bolt; 608, positioning hole; 7, boss block; 71, rotating positioning plate; 8, driven gear ring; 9, sliding suspension rod; 10, bow-shaped connecting rod; 11, electric push rod ; 12. Top cover plate; 13. Drain pipe; 14. Oil drain pipe; 15. Observation window; 16. Drain port; 17. Anti-collision baffle; 18. Driven gear one; 19. Driven gear two; 20. Water layer height limit plate; 21. Oil pipeline; 22. Annular base plate; 23. Horizontal scale line; 24. Sprinkler block; 241. Perforation; 242. Inclined guide plate; 25. Guide ear plate; 26. Drain valve; 27. Arc baffle; 28. Sealing gate; 29. ​​Oil storage barrel. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In this embodiment

[0034] Reference Figure 1-8 , an oil-water separator with automatic cleaning function, comprising a separation tank body 1 with an inner cavity opening upward, the separation tank body 1 is composed of a cylindrical barrel and a rectangular box body of equal height, and a vertical arc baffle 27 is fixed at the junction of the interior of the separation tank body 1, and the radius of the arc baffle 27 is the same as the radius of the cylinder, that is, the inner wall of the separation tank body 1 is approximately an integral cylindrical structure; and a gap is left between the bottom end of the arc baffle 27 and the bottom inner wall of the separation tank body 1 for the water layer to pass through after later stratification, the arc baffle 27 divides the interior of the separation tank body 1 into a separation chamber and a collection chamber, and an oil storage barrel 29 is suspended in the collection chamber, and an oil pipe 21 is inserted into the circumferential outer wall of the oil storage barrel 29 near the arc baffle 27, and a strip-shaped plug hole matching the cross-sectional shape of the oil pipe 21 is opened on the arc baffle 27, and an oil discharge pipe 14 is inserted into the bottom of the oil storage barrel 29;

[0035] A top cover plate 12 is fixed to the top of the separation tank body 1, and a feed pipe 2 of a "Z"-shaped structure is inserted into the end of the top cover plate 12 away from the oil storage barrel 29; the oil outlet is away from the arc baffle 27;

[0036] A sealing gate 28 capable of vertical sliding is provided on the side surface of the arc-shaped baffle plate 27 away from the feed pipe 2;

[0037] An annular base plate 22 is fixed near the top of the circumferential inner wall of the separation chamber of the separation tank body 1, and a rotatable driven gear ring 8 is clamped on the inner side of the circumference of the annular base plate 22. The cross section of the driven gear ring 8 is an S-shaped structure, and two cleaning mechanisms 6 that are centrally symmetrical to each other are fixed on the lower surface of the driven gear ring 8. The cleaning mechanism 6 includes a scraper blade 604 attached to the inner wall of the separation chamber of the separation tank body 1; the separation chamber of the cylindrical barrel structure is provided in conjunction with the setting of the sealing gate 28. When the oil-water mixture is first injected, the sealing gate 28 is first closed. Note that the total height of the oil-water mixture injected at the beginning is The degree is not higher than the height of the lower mouth of the oil pipe 21; after the oil and water form a stable stratification until the water level is higher than the lower edge of the arc baffle 27, the sealing gate 28 is opened, and the oil-water mixture to be separated is slowly injected at this time, and it is sufficient to ensure that the injection speed is compatible with the stratification speed, and ensure that the stratification stability near the oil pipe 21 is not affected; at this time, only water passes through the holes below the arc baffle 27, so the oil layer will always be kept in the separation chamber of the cylindrical barrel structure, and the oil attached to the inner wall of the separation tank body 1 can be cleaned in time with the slowly rotating scraper 604.

[0038] In the present invention, a vertical water layer height limit plate 20 is fixed on the bottom inner wall of the separation tank body 1 at the middle of the rectangular box part, and the topmost height of the water layer height limit plate 20 is 10cm-30cm lower than the lower end of the oil pipe 21; the side of the water layer height limit plate 20 away from the oil storage barrel 29 is a pumping area, and the bottom of the separation tank body 1 is located in the pumping area and is connected to a drain pipe 13; by setting the water layer height limit plate 20, it is possible to avoid the water layer overflowing into the oil storage barrel 29 due to the excessively fast speed of the injected oil-water mixture during stratification.

[0039] Reference Figure 1 and Figure 3 An observation window 15 is provided near the middle of the front of the separation tank body 1, and a horizontal scale line 23 is provided on the circumferential inner wall of the separation tank body 1 at a position directly opposite to the observation window 15. The internal oil-water separation state can be clearly observed through the set horizontal scale line 23 and the observation window 15, so as to adjust the feeding speed so that the stratification speed is adapted to the overflow speed.

[0040] In the present invention, a wear-resistant rubber layer is provided on one side of the sealing gate 28 close to the arc baffle 27, and a magnet 1 is embedded inside the sealing gate 28, and a permanent magnet that attracts the magnet 1 is embedded on one side of the arc baffle 27 close to the sealing gate 28; by providing the wear-resistant rubber layer and the permanent magnet, the sealing effect of the sealing gate 28 can be better, and the oil-water mixture can be prevented from passing through the sealing gate 28 in the initial mixing stage, ensuring that no oil stains remain on the inner wall of the collection chamber in the later stage.

[0041] Reference Figure 3-4 Two symmetrical sliding hangers 9 are fixed to the top of the sealing gate 28, and the same bow-shaped connecting rod 10 is fixed to the top of the two sliding hangers 9. An electric push rod 11 is arranged between the lower surface of the bow-shaped connecting rod 10 and the top cover plate 12; the sealing gate 28 can be automatically lifted and lowered by the arranged electric push rod 11, and it runs smoothly, and the oil stains on its surface can be scraped and washed while pulling it upward.

[0042] Reference Figure 1-3 A convex-moon-shaped inspection hole is opened in the middle of the top cover plate 12, and a cover plate 5 is arranged on the inspection hole; a motor frame is fixed to the upper surface of the top cover plate 12 near the side of the feed pipe 2, and a driving motor 4 is fixed to the top of the motor frame by bolts, and a driving gear is fixed to the top of the output shaft of the driving motor 4; two parallel bearings are embedded in the top cover plate 12 near the oblique lower part of the driving gear, and a transmission rod 1 3 and a transmission rod 2 which are parallel to each other are rotatably connected in the two bearings, and a driven gear 18 and a helical gear are fixed to the upper and lower ends of the transmission rod 2, respectively, and the helical gear and the driven gear ring 8 are meshed with each other; the driving gear and the driven gear 18 are meshed with each other; and a rotational power output is provided for the overall rotation of the cleaning mechanism 6.

[0043] Reference Figure 5-8 The cleaning mechanism 6 also includes two boss blocks 7 fixed on the lower surface of the driven gear ring 8 near the inner edge and distributed symmetrically with each other, and the outer wall of the boss block 7 is slidably connected with a vertical suspension rod, the top of the suspension rod is provided with a T-shaped slide groove 601, the bottom of the suspension rod is fixed with a fixed block 605, and the side of the fixed block 605 is provided with a stop block 602 that can be adjusted horizontally, and the side of the stop block 602 is fixed with two tightening screws 606 that pass through the fixed block 605, and the tightening screws 606 are fixed to the sides of the stop block 602. A self-locking nut is screwed onto the circumferential outer wall of the screw rod 606, the scraper blade 604 is clamped between the stop block 602 and the fixed block 605, and a positioning oblique screw hole is provided on the suspension rod, a positioning bolt 607 is screwed into the positioning oblique screw hole, and a positioning hole 608 matching the diameter of the positioning bolt 607 is provided on the scraper blade 604; the curvature of the scraper blade 604 is in close contact with the circumferential inner wall of the separation tank body 1; the detachable scraper blade 604 makes the overall disassembly of the cleaning mechanism 6 more convenient.

[0044] Reference Figure 5-8 The end of the boss block 7 is screwed with a rotating positioning plate 71; a mud guard 603 is also arranged between the two self-locking nuts; through the mud guard 603, after the cleaning mechanism 6 carries the scraper blade 604 to rotate one circle, it is only necessary to loosen the positioning bolt 607, and then pull the scraper blade 604 upward to clean the oil sludge on its surface; then it is convenient to clean again.

[0045] Reference Figure 3 and Figure 7The upper and lower ends of the transmission rod 1 3 are respectively fixed with a driven gear 2 19 and a rotary sprinkler block 24, and the top of the rotary sprinkler block 24 is located obliquely below the discharge port of the feed pipe 2. The rotary sprinkler block 24 is in a conical structure as a whole, and the conical surface of the rotary sprinkler block 24 is provided with a plurality of through holes 241 penetrating the bottom end, and the outer wall of the rotary sprinkler block 24 is fixed with a plurality of radially structured inclined guide plates 242; a floating anti-collision baffle 17 is provided on the side of the outer wall of the rotary sprinkler block 24 away from the feed pipe 2, and both sides of the anti-collision baffle 17 are close to the top The ends are fixed with guide ear plates 25, and guide slide bars are slidably inserted in the guide ear plates 25, and the top ends of the two guide slide bars are fixed to the top inner wall of the top cover plate 12; the lower surface of the top cover plate 12 is fixed with a buffer plate facing the feed pipe 2; through the provided rotary sprinkler block 24 and anti-impact baffle plate 17, the oil-water mixture pouring in at a high speed and in a large volume can be quickly dispersed to reduce its impact kinetic energy, so that the ripples aroused by the oil-water mixture when entering the separation tank body 1 are as small as possible, thereby facilitating rapid stratification.

[0046] Reference Figure 1 and Figure 3 A sewage outlet 16 is provided near the middle of the bottom of the separation tank body 1, and a sewage valve 26 is provided at the bottom of the sewage outlet 16; the sewage valve 26 can stir the internal water when discharging the sludge, so that the sludge is slowly accumulated in the middle, which is convenient for unified discharge.

[0047] When the device is in use, the cylindrical barrel-shaped separation chamber is provided in conjunction with the sealing gate 28. When the oil-water mixture is first injected, the sealing gate 28 is first closed. It is noted that the total height of the oil-water mixture injected at the beginning is not higher than the lower opening height of the oil pipe 21. After the oil and water are stably stratified until the water level is higher than the lower edge of the arc baffle 27, the sealing gate 28 is opened, and the oil-water mixture to be separated is slowly injected at this time. When the oil-water mixture is injected, the high-speed rotary sprinkling block 24 and the anti-collision baffle 17 can be used to inject the oil-water mixture. The large volume of oil-water mixture that flows in is quickly dispersed, reducing its impact kinetic energy, so that the ripples caused by the oil-water mixture when entering the separation tank body 1 are as small as possible, thereby allowing the injected oil and water to be quickly stratified; that is, it is sufficient to ensure that the injection speed is compatible with the stratification speed, and ensure that the stratification stability near the oil pipe 21 is not affected; at this time, only water passes through the holes under the arc baffle 27, so the oil layer will always be kept in the separation chamber of the cylindrical barrel structure, and the oil attached to the inner wall of the separation tank body 1 can be cleaned in time with the slowly rotating scraper 604.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil-water separator with automatic cleaning function, comprising a separation tank body (1) with an internal cavity opening upward, the separation tank body (1) is composed of a cylindrical barrel and a rectangular box body of equal height, and a vertical arc-shaped baffle (27) is fixed at the junction of the interior of the separation tank body (1), characterized in that: The radius of the arc-shaped baffle (27) is the same as the radius of the cylinder; and a gap is left between the bottom end of the arc-shaped baffle (27) and the bottom inner wall of the separation tank body (1); the arc-shaped baffle (27) divides the interior of the separation tank body (1) into a separation chamber and a collection chamber, and an oil storage barrel (29) is suspended in the collection chamber, an oil passage pipe (21) is plugged into the circumferential outer wall of the oil storage barrel (29) near the arc-shaped baffle (27), and a strip-shaped plug hole matching the cross-sectional shape of the oil passage pipe (21) is opened on the arc-shaped baffle (27), and an oil discharge pipe (14) is plugged into the bottom of the oil storage barrel (29); A top cover plate (12) is fixed to the top of the separation tank body (1), and a feed pipe (2) with a "Z"-shaped structure is inserted into the end of the top cover plate (12) away from the oil storage barrel (29); A sealing gate (28) capable of vertical sliding is provided on a surface of one side of the arc-shaped baffle plate (27) away from the feed pipe (2); An annular base plate (22) is fixed near the top of the circumferential inner wall of the separation chamber of the separation tank body (1), and a rotatable driven gear ring (8) is clamped on the inner side of the circumference of the annular base plate (22), the cross-section of the driven gear ring (8) is an S-shaped structure, and two cleaning mechanisms (6) are fixed on the lower surface of the driven gear ring (8) in a centrally symmetrical manner to each other, the cleaning mechanism (6) comprising a scraper blade (604) attached to the inner wall of the separation chamber of the separation tank body (1); A convex-moon-shaped inspection hole is provided in the middle of the top cover plate (12), and a cover plate (5) is provided on the inspection hole; a motor frame is fixed to the upper surface of the top cover plate (12) near the side of the feed pipe (2), and a driving motor (4) is fixed to the top of the motor frame by bolts, and a driving gear is fixed to the top of the output shaft of the driving motor (4); two mutually parallel bearings are embedded in the top cover plate (12) near the driving gear and obliquely below the driving gear, and mutually parallel transmission rods 1 (3) and 2 are rotatably connected in the two bearings, and driven gear 1 (18) and helical gears are fixed to the upper and lower ends of the transmission rod 2, respectively, and the helical gears and the driven gear ring (8) are meshed with each other; The upper and lower ends of the transmission rod 1 (3) are respectively fixed with a driven gear 2 (19) and a rotary sprinkling block (24), and the top end of the rotary sprinkling block (24) is located obliquely below the discharge port of the feed pipe (2). The rotary sprinkling block (24) is in a conical structure as a whole, and the conical surface of the rotary sprinkling block (24) is provided with a plurality of through holes (241) penetrating the bottom end, and the outer wall of the rotary sprinkling block (24) is fixed with a plurality of oblique guide plates (242) in a radial structure; a floating anti-collision baffle (17) is provided on the side of the outer wall of the rotary sprinkling block (24) away from the feed pipe (2), and guide ear plates (25) are fixed on both sides of the anti-collision baffle (17) near the top end, and guide slide bars are slidably inserted in the guide ear plates (25), and the top ends of the two guide slide bars are fixed to the top inner wall of the top cover plate (12); a buffer plate facing the feed pipe (2) is fixed on the lower surface of the top cover plate (12).

2. The oil-water separator with automatic cleaning function according to claim 1, characterized in that: A vertical water layer height limiting plate (20) is fixed to the inner wall of the bottom of the separation tank body (1) at the middle of the rectangular box body, and the top of the water layer height limiting plate (20) is 10 cm to 30 cm lower than the lower opening of the oil pipe (21); the side of the water layer height limiting plate (20) away from the oil storage barrel (29) is a water pumping area, and a drainage pipe (13) is inserted into the bottom of the separation tank body (1) located in the water pumping area.

3. The oil-water separator with automatic cleaning function according to claim 2, characterized in that: An observation window (15) is provided near the middle of the front side of the separation tank body (1), and a horizontal scale line (23) is provided on the circumferential inner wall of the separation tank body (1) at a position directly opposite to the observation window (15).

4. The oil-water separator with automatic cleaning function according to claim 1, characterized in that: A wear-resistant rubber layer is provided on one side of the sealing gate (28) close to the arc-shaped baffle plate (27), a magnet one is embedded inside the sealing gate (28), and a permanent magnet that attracts the magnet one is embedded on one side of the arc-shaped baffle plate (27) close to the sealing gate (28).

5. The oil-water separator with automatic cleaning function according to claim 4, characterized in that: Two mutually symmetrical sliding suspension rods (9) are fixed to the top of the sealing gate (28), and the same arched connecting rod (10) is fixed to the top of the two sliding suspension rods (9), and an electric push rod (11) is arranged between the lower surface of the arched connecting rod (10) and the top cover plate (12).

6. The oil-water separator with automatic cleaning function according to claim 1, characterized in that: The cleaning mechanism (6) further comprises two boss blocks (7) fixed to the lower surface of the driven gear ring (8) near the inner edge thereof and arranged symmetrically with respect to each other, and the outer wall of the boss block (7) is slidably connected to a vertical suspension rod, the top of the suspension rod is provided with a T-shaped slide groove (601), the bottom of the suspension rod is fixed with a fixed block (605), and the side of the fixed block (605) is provided with a stop block (602) capable of horizontal adjustment and movement, and the side of the stop block (602) is fixed with two stop blocks (602) passing through the fixed block (605) The scraper blade (604) is clamped between the stop block (602) and the fixed clamp block (605), and a positioning oblique screw hole is formed on the suspension rod, a positioning bolt (607) is screwed into the positioning oblique screw hole, and a positioning hole (608) matching the diameter of the positioning bolt (607) is formed on the scraper blade (604); the curvature of the scraper blade (604) is closely attached to the circumferential inner wall of the separation tank body (1).

7. The oil-water separator with automatic cleaning function according to claim 6, characterized in that: A rotating positioning plate (71) is threadedly connected to the end of the boss block (7); a fender (603) is also provided between the two self-locking nuts.

8. The oil-water separator with automatic cleaning function according to claim 1, characterized in that: A sewage outlet (16) is provided near the middle of the bottom of the separation tank body (1), and a sewage outlet valve (26) is provided at the bottom end of the sewage outlet (16).

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