Oil-water separation system for needle coke wastewater treatment

Abstract

The invention relates to the technical field of needle coke wastewater treatment, in particular to an oil-water separation system for needle coke wastewater treatment, which comprises a separation box, a box cover is slidably mounted on the upper side of the separation box, a rotating hole is formed in the upper side of the box cover, a separation mechanism is rotatably mounted in the rotating hole, and a cross rod is fixedly mounted on the side of a hollow column. And two scraping plates are fixedly installed on the lower side of the transverse rod, a medicine injection assembly is fixedly installed in an air conveying hole, and the air conveying hole is fixedly connected with a stirring pipe. The driving motor drives the second-stage bevel gear to rotate, the second-stage bevel gear drives the first-stage bevel gear to rotate, the first-stage bevel gear drives the second-stage bevel gear to rotate, the second-stage bevel gear drives the hollow column to rotate, the hollow column drives the first-stage pawl to move, the first-stage pawl is made to move clockwise, and full mixing and demulsification are achieved; the oil-water separation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of needle coke wastewater treatment, in particular to an oil-water separation system for needle coke wastewater treatment. Background Art

[0002] Needle coke wastewater is the wastewater generated during the production process of needle coke materials. Needle coke wastewater contains a large amount of oil pollution, which cannot be normally decomposed by nature. Direct discharge will have a huge impact on the environment. Therefore, it is necessary to carry out oil-water separation treatment. When carrying out oil-water separation treatment, an oil-water separation device is needed.

[0003] Chinese utility model patent CN215975256U discloses an oil-water separation device for treating oily wastewater, comprising a separation tank, a fixing column fixedly connected to the lower end face of the separation tank, a base frame welded to the lower end face of the fixing column, a threaded hole opened on the upper end face of the base frame, an adjusting rod threadedly connected to the inner thread of the threaded hole, a support seat fixedly connected to the lower end face of the adjusting rod, universal wheels installed at the four corners of the lower end face of the base frame, and an oil drain pipe and a sewage drain pipe connected to the upper and lower end faces of the separation tank, respectively. The oil-water separation device for treating oily wastewater is provided with universal wheels, an adjusting rod and a support seat, so that they cooperate with each other, which facilitates the mobile transportation of the oil-water separation device, and the whole device is integrated in an integrated design, so that it can be flexible and changeable when used, and when the oil-water separation device needs to be fixed, the adjusting rod is rotated to make the support seat move down and support it on the ground, which greatly improves the practicality of the oil-water separation device.

[0004] However, the device still has some problems. The oil and water flow into the separation tank through the circulation pipe for separation. After separation, the oil floats on the upper layer of the sewage, and the fine impurities in the oil and water settle at the bottom of the separation tank to complete the oil-water separation. This separation method only relies on gravity for stratification. Although the upper oil layer is separated, there is still an emulsified oil layer in the needle coke wastewater. The emulsified oil layer refers to tiny oil droplets formed between the oil and water. These oil droplets are evenly dispersed in the water to form an emulsion. These emulsified oil layers cannot be separated by gravity alone, resulting in the problem of incomplete oil-water separation. Therefore, the emulsified oil layer needs to be treated to separate the oil and water. Summary of the invention

[0005] The purpose of the present invention is to provide an oil-water separation system for treating needle coke wastewater, so as to solve the problem of relying on gravity for stratification proposed in the above-mentioned background technology. Although the upper oil layer is separated, a large amount of emulsified oil-water mixture exists in the needle coke wastewater. These emulsified oils cannot be separated using this method, resulting in incomplete oil-water separation.

[0006] The technical solution of the present invention is: an oil-water separation system for needle coke wastewater treatment, comprising a separation box, a box cover is slidably mounted on the upper side of the separation box, a rotating hole is opened on the upper side of the box cover, and a separation mechanism is rotatably mounted in the rotating hole; The separation mechanism comprises a hollow column, the upper part of which is rotatably mounted in the rotating hole, a plurality of air delivery holes are provided on the surface of the hollow column, a cross bar is fixedly mounted on the side of the hollow column, a scraper is fixedly mounted on the lower side of the cross bar, a drug injection assembly is fixedly mounted in the air delivery hole, the air delivery holes are fixedly connected with stirring tubes, each drug injection assembly is arranged in the corresponding stirring tube, a filter assembly is installed in the separation box, and the filter assembly is located at the lower side of the stirring tube; The filter assembly includes a partition plate, which is rotatably installed in a separation box, and a plurality of drain ports are provided on the surface of the partition plate. A movable plate is rotatably installed on the lower side of the partition plate, and a sealing portion corresponding to the drain ports is provided on the movable plate. The drain ports are closed when the sealing portion is opposite to the drain ports. A plurality of limit plates are fixedly installed on the lower side of the partition plate, and a transmission unit is fixedly installed on the upper side of the movable plate. An oil-water separation net is fixedly installed on the inner wall of the separation box, and two slide grooves are provided on the inner wall of the separation box, and vibration units are slidably installed in the two slide grooves, and a particle filter net is installed between the two vibration units.

[0007] Furthermore, the injection assembly includes a plurality of nozzles opened on the surface of the stirring tube, a fixed block is fixedly installed on the inner wall of the stirring tube, a telescopic rod is fixedly installed on the upper side of the fixed block, an anti-backflow cover is fixedly installed on the top of the telescopic rod, a return spring is sleeved on the surface of the telescopic rod, a plurality of support rods are fixedly installed on the upper side of the box cover, a same vacuum box is fixedly installed on the top of the plurality of support rods, a piston is slidably installed on the inner wall of the vacuum box, a suction port is opened on one side of the vacuum box, a suction pipe is fixedly connected to the suction port, a one-way valve is installed on the suction pipe, a reagent box is fixedly installed on the upper side of the vacuum box, a material injection hole is opened on one side of the reagent box, the other end of the suction pipe is connected to the material injection hole, an addition port is opened on the upper side of the reagent box, a discharge port is opened on one side of the vacuum box, a delivery pipe is fixedly connected to the discharge, a one-way valve is fixedly installed on the delivery pipe, the other end of the delivery pipe is rotatably connected to the top of the hollow column, and a driving unit is fixedly installed on one side of the piston.

[0008] Furthermore, the driving unit includes a primary pawl, which is rotatably mounted on the surface of a hollow column, a primary extrusion spring is arranged between the primary pawl and the hollow column, a primary gear is rotatably mounted on the upper side of the box cover, and a plurality of primary ratchets are arranged at intervals on the inner wall of the primary gear.

[0009] Furthermore, the driving assembly also includes a secondary gear, which is rotatably mounted on the upper side of the separation box, the secondary gear is meshed with the primary gear, a driving column is fixedly mounted on the upper side of the secondary gear, a driving rod is rotatably mounted on one side of the piston, a sliding groove is provided on the surface of the driving rod, and the driving column is slidably mounted in the sliding groove.

[0010] Furthermore, the drive unit also includes a primary bevel gear, which is fixedly mounted on the surface of the hollow column. A drive motor is fixedly mounted on the upper side of the box cover, and a secondary bevel gear is fixedly mounted on the output end of the drive motor. The primary bevel gear is meshed with the secondary bevel gear.

[0011] Furthermore, the transmission unit includes a torsion spring shaft, which is fixedly mounted on the upper side of the movable plate, and a first-level avoidance opening is provided on the partition plate. A connecting block is fixedly mounted on the top of the torsion spring shaft, and a clamping block is fixedly mounted on the bottom end of the hollow column. A rotating rod is slidably mounted on the lower side of the clamping block, and a clamping groove is provided on the top of the rotating rod, and the clamping block can be slidably extended into the clamping groove. A mounting groove is provided at the bottom end of the rotating rod, and the top of the connecting block is rotatably mounted in the mounting groove, and a secondary pawl is rotatably mounted on the top of the torsion spring shaft, and a secondary ratchet is provided on the inner wall of the mounting groove, and a secondary extrusion spring is arranged between the secondary pawl and the connecting block.

[0012] Furthermore, the vibration unit includes two bearing blocks, which are slidably installed in two slide grooves respectively, and positioning columns are fixedly installed on the upper sides of the bearing blocks. The particle filter is slidably installed on the surface of the positioning columns. The surface of the particle filter is provided with secondary avoidance holes that cooperate with the positioning columns, and vibration springs are fixedly installed on the upper and lower sides of the bearing blocks.

[0013] Furthermore, the vibration unit also includes a plurality of knocking blocks, and the plurality of knocking blocks are fixedly mounted on the upper side of the partition plate, and a top block is fixedly mounted on the lower side of the two bearing blocks.

[0014] Furthermore, a feed port is provided on the surface of the separation box, an inlet pipe is fixedly connected to the feed port, a sewage outlet is provided on one side of the lower part of the separation box, a sewage door is rotatably installed on the separation box on one side of the sewage outlet, an outlet is provided at the bottom end of the separation box, an outlet pipe is fixedly installed in the outlet, and a valve is installed on the outlet pipe.

[0015] Furthermore, a bracket is fixedly installed on the lower side of the separation box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the secondary bevel gear to rotate by a driving motor, the secondary bevel gear drives the primary bevel gear to rotate, the primary bevel gear drives the secondary bevel gear to rotate, the secondary bevel gear drives the hollow column to rotate, the hollow column drives the primary pawl to move, so that the primary pawl moves clockwise, the primary pawl drives the primary gear to rotate through the secondary ratchet, the primary gear drives the secondary gear to rotate, the secondary gear drives the driving column to move, the driving column drives the driving rod to move, the driving rod drives the piston to slide back and forth along the inner wall of the vacuum box, and when the piston gradually moves away from the vacuum box, the demulsifier in the reagent box is sucked into the suction pipe. In the vacuum box, when the piston gradually extends into the vacuum box, the demulsifier sucked into the vacuum box is transported to the hollow column through the piston through the delivery pipe, and then transported to the stirring tube through the hollow column. When the demulsifier fills the entire stirring tube and is continuously squeezed by the pressure generated in the vacuum box, the anti-backflow cover is lifted up. At this time, the demulsifier is sprayed into the needle coke wastewater through the nozzle. When the first-stage bevel gear rotates, it will also drive the hollow column to rotate. The hollow column drives multiple stirring tubes to rotate, and the needle coke wastewater injected with the demulsifier is added and stirred at the same time, so that it is fully mixed and demulsified, thereby increasing the effect of oil-water separation.

[0017] 2. The present invention drives the motor to rotate clockwise, and the output end of the driving motor drives the secondary bevel gear to rotate, the secondary bevel gear drives the primary bevel gear to rotate, and the primary bevel gear drives the hollow column to rotate. At this time, the primary pawl driven by the hollow column moves, but it is separated from the primary ratchet and the primary gear no longer rotates, so that the injection of gas at the nozzle is stopped, and the hollow column drives the rotating rod to rotate counterclockwise through the clamping block, and the rotating rod drives the secondary ratchet set at the bottom to rotate counterclockwise, so that the secondary ratchet and the secondary pawl are meshed, and at this time, the rotating rod drives the torsion spring shaft to rotate, and the torsion spring shaft first drives the movable plate to rotate, and the movable plate is misaligned with the drain port. At this time, the drain port is opened, so that the needle coke wastewater after demulsification is completed is transported downward, and the particles in the wastewater are filtered and the oil and water are separated respectively through the particle filter net and the oil-water separation net, so as to achieve the effect of multi-stage separation of oil and water.

[0018] 3. The present invention rotates and extrude the torsion spring shaft. When the torsion spring shaft is extruded to the maximum torsion degree, the movable plate drives the partition plate to rotate through the limit plate, and the partition plate drives multiple knocking blocks to move, so that the multiple knocking blocks are squeezed and knocked on the top block. When the knocking blocks squeeze and knock on the top block, the top block drives the supporting block to move upward, and the supporting block drives the particle filter to move upward through two positioning columns, and under the action of four vibration springs, drives the particle filter to vibrate, so as to prevent the particle filter from being blocked when filtering impurities and affecting the filtration rate, thereby improving the rate of multi-stage separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cutaway structure of the separation box in the present invention; Figure 3 It is a schematic diagram of the cross-section structure of the drug injection assembly of the present invention; Figure 4 It is a schematic diagram of the cross-section structure of the box cover in the present invention; Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of the A area in the middle; Figure 6 It is a schematic diagram of the cross-section structure of the hollow column and the stirring tube in the present invention; Figure 7 It is a schematic diagram of the partition plate and the oil-water separation net and their related structures in the present invention; Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the middle B area; Fig. 9 It is a schematic diagram of the exploded structure of the vibration unit in the present invention; Fig.10 It is a schematic diagram of the exploded structure of the transmission unit of the present invention; Fig.11 yes Fig.10 Schematic diagram of the enlarged structure of the C area in the middle.

[0020] Description of reference numerals: 1. Separation box; 2. Hollow column; 3. Stirring tube; 4. Fixed block; 5. Telescopic rod; 6. Anti-backflow cover; 7. Reset spring; 8. Box cover; 9. Bracket; 10. Primary bevel gear; 11. Driving motor; 12. Secondary bevel gear; 13. Primary gear; 14. Secondary gear; 15. Driving column; 16. Support rod; 17. Vacuum box; 18. Piston; 19. Driving rod; 20. Delivery pipe; 21. Suction pipe; 22. Reagent box; 23. Primary ratchet; 24. Primary extrusion spring; 25. Primary ratchet; 26 , cross bar; 27, scraper; 28, oil-water separation net; 29, bearing block; 30, positioning column; 31, particle filter; 32, vibration spring; 33, partition plate; 34, movable plate; 35, torsion spring shaft; 36, limit plate; 37, top block; 38, knocking block; 39, drain port; 40, connecting block; 41, rotating rod; 42, secondary pawl; 43, secondary extrusion spring; 44, secondary ratchet; 45, snap-in groove; 46, snap-in block; 47, outlet pipe; 48, valve; 49, inlet pipe; 50, sewage door. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0022] Figure 1 to Figure 11 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1 to Figure 11 The present invention is further described.

[0023] like Figure 1 to Figure 11 As shown, an oil-water separation system for needle coke wastewater treatment includes a separation box 1, a box cover 8 is slidably installed on the upper side of the separation box 1, a rotating hole is opened on the upper side of the box cover 8, and a separation mechanism is rotatably installed in the rotating hole.

[0024] The separation mechanism includes a hollow column 2, the lower part of the hollow column 2 is a quadrangular prism, and the upper part is a cylindrical shape. The upper part of the hollow column 2 is rotatably installed in the rotating hole. A plurality of gas delivery holes are opened on the surface of the hollow column 2, and a drug injection component is fixedly installed in the gas delivery hole. A cross bar 26 is fixedly installed on the surface of the hollow column 2, and two scrapers 27 are fixedly installed on the lower side of the cross bar 26. Each gas delivery hole is connected to a stirring tube 3, one end of the stirring tube 3 is closed, and the other end is fixedly connected to the hollow column 2 and communicated with the corresponding gas delivery hole. A drug injection component is arranged in each stirring tube 3, and a filter assembly is installed in the separation box 1. The filter assembly is located on the lower side of the stirring tube 3, and the bottom of the hollow column 2 is closed.

[0025] The filter assembly includes a partition plate 33, which is in the shape of a disc and is rotatably mounted in the separation box 1. A plurality of drain ports 39 are provided on the partition plate 33. A movable plate 34 is rotatably mounted on the lower side of the partition plate 33. A blocking portion corresponding to the drain ports 39 is provided on the movable plate 34. When the blocking portion is directly opposite to the corresponding drain port 39, the drain port 39 can be closed. A plurality of limiting plates 36 are fixedly mounted on the lower side of the partition plate 33. The blocking portion of the movable plate 34 can push the partition plate 33 to rotate through the limiting plates 36. The movable plate 34 is movable, and a transmission unit is fixedly installed on the upper side thereof; an oil-water separation net 28 is fixedly installed on the inner wall of the separation box 1; two slide grooves are symmetrically provided on both sides of the inner wall of the separation box 1; vibration units are slidably installed in the two slide grooves; a disc-shaped particle filter 31 is arranged in the separation box 1; the particle filter 31 is located at the lower part of the separation box 1; the particle filter 31 is fixedly connected to the two vibration units; the partition plate 33 is located at the lower side of the particle filter 31; and the oil-water separation net 28 is located at the lower side of the movable plate 34.

[0026] By means of the above structure, four plug holes are provided on the upper side of the separation box 1, and four plug blocks are fixedly installed on the lower side of the box cover 8. When the box cover 8 is installed, the four plug blocks can be respectively inserted into the four plug holes to complete the sliding installation of the box cover 8, and it is also convenient to remove the box cover 8. The hollow column 2 is hollow inside, and gas and liquid can be transmitted. Two cross bars 26 are symmetrically installed on both sides of the hollow column 2. The cross bars 26 are slidably fitted on the lower side of the box cover 8. A scraper 27 is installed on the lower side of each cross bar 26, and the scraper 27 is fitted on The inner wall of the separation box 1, when the hollow column 2 rotates, the two scrapers 27 will be driven to move through the two cross bars 26, so that the scrapers 27 fit the inner wall of the separation box 1, and the stains adsorbed on the inner wall of the separation box 1 are scraped off to prevent sticking to the inner wall. Four air holes are opened on the surface of the hollow column 2. The oil-water separation net 28 on the inner wall of the separation box 1 is installed below the particle filter net 31. The oil-water separation net 28 and the particle filter net 31 are both existing technologies, and the filter aperture of the oil-water separation net 28 is smaller than the aperture of the particle filter net 31.

[0027] Furthermore, the injection assembly includes a plurality of nozzles opened on the surface of the stirring tube 3, a fixing block 4 is fixedly installed on the inner wall of the stirring tube 3, a telescopic rod 5 is fixedly installed on the upper side of the fixing block 4, an anti-backflow cover 6 is fixedly installed on the top of the telescopic rod 5, a reset spring 7 is sleeved on the surface of the telescopic rod 5, a plurality of support rods 16 are fixedly installed on the upper side of the box cover 8, a same vacuum box 17 is fixedly installed on the top of the plurality of support rods 16, a piston 18 is slidably installed on the inner wall of the vacuum box 17, a suction port is opened on one side of the vacuum box 17, and the suction port is connected to the suction port. A suction pipe 21 is connected, a one-way valve is installed on the suction pipe 21, a reagent box 22 is fixedly installed on the upper side of the vacuum box 17, a material injection hole is opened on one side of the reagent box 22, the other end of the suction pipe 21 is connected with the reagent box 22 through the material injection hole, an addition port is opened on the upper side of the reagent box 22, a discharge port is opened on one side of the vacuum box 17, the discharge port is connected with a delivery pipe 20, a one-way valve is installed on the delivery pipe 20, the other end of the delivery pipe 20 is connected with the top of the hollow column 2 through a rotating joint, and a driving unit is fixedly installed on one side of the piston 18.

[0028] By means of the above structure, two nozzles are provided on each stirring tube 3, and an anti-backflow cover 6 is installed in each nozzle. One end of the reset spring 7 is fixedly connected to the lower side of the anti-backflow cover 6, and the other end of the reset spring 7 is fixedly connected to the upper side of the fixed block 4. The fixed block 4 is fixedly connected to the inner wall of the corresponding stirring tube 3. The one-way valve on the suction pipe 21 allows the reagent to enter the vacuum box 17 from the reagent box 22, and the one-way valve on the delivery pipe 20 allows the reagent to enter the hollow column 2 from the vacuum box 17. When the pressure generated in the vacuum box 17 is transmitted to the nozzle, the anti-backflow cover 6 is protected. When the pressure is opened, when the vacuum box 17 stops working, the anti-backflow cover 6 will be pulled by the return spring 7 to close at the nozzle again, and the nozzle is sealed to prevent sewage backflow. In addition, when the reagent in the reagent box 22 is emptied, the addition port is kept open to inhale the outside air, and the reagent box 22, the hollow column 2 and the stirring tube 3 are injected with air, and the gas is continuously injected into the wastewater through the nozzle. At this time, the separation efficiency of oil and water after the emulsion layer is broken can be promoted, which is consistent with the principle of the common flotation method for oil-water separation of the emulsified layer of needle coke wastewater.

[0029] Furthermore, the driving unit includes a primary pawl 23, which is rotatably mounted on the surface of the hollow column 2. A primary extrusion spring 24 is arranged between the primary pawl 23 and the hollow column 2. A primary gear 13 is rotatably mounted on the upper side of the box cover 8, and a plurality of primary ratchet teeth 25 are evenly spaced around the inner wall of the primary gear 13.

[0030] By means of the above structure, the first-stage pawl 23 will engage with the first-stage ratchet 25 in cooperation with the first-stage extrusion spring 24 when moving clockwise, driving the first-stage gear 13 to provide driving force for the injection assembly, and the first-stage pawl 23 will move clockwise.

[0031] Furthermore, the driving assembly also includes a secondary gear 14, which is rotatably mounted on the upper side of the box cover 8, and the secondary gear 14 is meshed with the primary gear 13. A driving column 15 is fixedly mounted on the upper side of the secondary gear 14, and the driving column 15 is eccentrically arranged with the secondary gear 14. A driving rod 19 is rotatably mounted on one side of the piston 18, and a sliding groove is provided on the surface of the driving rod 19, and the driving column 15 is slidably mounted in the sliding groove.

[0032] With the above structure, the driving column 15 rotates synchronously with the secondary gear 14. When the secondary gear 14 rotates, it cooperates with the sliding groove on the surface of the driving rod 19 to make the driving rod 19 reciprocate linearly, thereby driving the piston 18 to reciprocate.

[0033] Furthermore, the drive unit also includes a primary bevel gear 10, which is fixedly mounted on the hollow column 2. A drive motor 11 is fixedly mounted on the upper side of the box cover 8, and a secondary bevel gear 12 is fixedly mounted on the output end of the drive motor 11. The primary bevel gear 10 is meshed with the secondary bevel gear 12.

[0034] With the above structure, the driving motor 11 is a servo motor, which can be controlled to rotate forward or reverse, and drive the hollow column 2 to rotate clockwise or counterclockwise through the secondary gear 14 and the primary gear 13.

[0035] Furthermore, the transmission unit includes a torsion spring shaft 35, which is fixedly mounted on the upper side of the movable plate 34, and a first-level avoidance opening is provided on the partition plate 33. A connecting block 40 is fixedly mounted on the top of the torsion spring shaft 35, and the bottom end of the connecting block 40 is coaxially fixedly connected to the top of the torsion spring shaft 35. A clamping block 46 is fixedly mounted on the bottom end of the hollow column 2, and a rotating rod 41 is slidably mounted on the lower side of the clamping block 46. A clamping groove 45 is provided on the top of the rotating rod 41, and the clamping block 46 can be slidably extended into the clamping groove 45, and the cross-sections of the clamping block 46 and the clamping groove 45 are both square or other regular polygons. A mounting groove is provided at the bottom end of the rotating rod 41, and the top of the connecting block 40 is rotatably mounted in the mounting groove. A secondary pawl 42 is rotatably mounted on the top of the torsion spring shaft 35, and a secondary ratchet 44 is provided on the inner wall of the mounting groove, and a secondary extrusion spring 43 is provided between the secondary pawl 42 and the connecting block 40.

[0036] With the above structure, the torsion spring shaft 35 is a prior art, consisting of a torsion spring, a shaft, and a fixing device. The torsion spring is wound around a shaft and fixed by a fixing device to ensure that they do not slide or fall off relatively during use. The elastic characteristics of the torsion spring are used to achieve the reset function, which will not be described in detail here. When the secondary pawl 42 rotates counterclockwise, it engages with the secondary ratchet 44 under the action of the secondary extrusion spring 43, so that the rotating rod 41 provides power for the torsion spring shaft 35. When the torsion spring shaft 35 is squeezed to the maximum torsion degree, the movable plate 34 drives the partition plate 33 to rotate through the limit plate 36. The fixing device can be a bolt or a barb, and one end of the torsion spring is fixed to the shaft, and the other end is fixed to the rotating rod 41.

[0037] Furthermore, the vibration unit includes two bearing blocks 29, and the two bearing blocks 29 are respectively slidably installed in two slide grooves. A positioning column 30 is fixedly installed on the upper side of the bearing block 29, and a particle filter 31 is slidably installed on the surface of the positioning column 30. The surface of the particle filter 31 is provided with a secondary avoidance hole for the positioning column 30 to be plugged in. Vibration springs 32 are fixedly installed on the upper and lower sides of the bearing block 29, and the vibration springs 32 are fixedly connected to the corresponding sides of the slide groove.

[0038] With the above structure, the two bearing blocks 29 are symmetrically installed, the particle filter 31 is slidably installed on the two positioning columns 30, the secondary avoidance hole facilitates the connection between the positioning column 30 and the particle filter 31, and the vibration spring 32 is fixedly installed between the bearing block 29 and the inner wall of the slide groove.

[0039] Furthermore, the vibration unit also includes a plurality of knocking blocks 38 , and the plurality of knocking blocks 38 are fixedly mounted on the upper side of the partition plate 33 , and a top block 37 is fixedly mounted on the lower side of the two bearing blocks 29 .

[0040] With the above structure, the knocking blocks 38 are installed at equal intervals in the outer ring area of ​​the partition plate 33, and a top block 37 is installed corresponding to the lower side of the two supporting blocks 29. The two top blocks 37 and multiple knocking blocks 38 are all hemispherical, which is convenient for guiding extrusion.

[0041] Furthermore, a feed port is provided on the surface of the separation box 1, to which an inlet pipe 49 is fixedly connected; a sewage outlet is provided on one side of the lower portion of the separation box 1; a sewage door 50 for closing the sewage outlet is rotatably installed on the side of the separation box 1, and the sewage door 50 is fixed to the separation box 1 by bolts; a guide outlet is provided at the bottom end of the separation box 1, to which a guide outlet is fixedly connected, and a valve 48 is installed on the guide outlet 47.

[0042] With the above structure, the sewage door 50 is convenient for discharging the filtered oil, the outlet is convenient for discharging the waste water, and the inlet pipe 49 is installed obliquely to prevent the waste water from overflowing.

[0043] Furthermore, a bracket 9 is fixedly mounted on the surface of the separation box 1 .

[0044] By means of the above structure, the bracket 9 lifts the separation box 1 to facilitate its operation.

[0045] Working principle: When the device is in use, firstly, the needle coke wastewater to be treated is introduced into the separation box 1 through the introduction pipe 49, and then a sufficient amount of demulsifier is introduced into the reagent box 22 through the addition port, and then the drive motor 11 is started to rotate counterclockwise, and the output end of the drive motor 11 drives the secondary bevel gear 12 to rotate, the secondary bevel gear 12 drives the primary bevel gear 10 to rotate, the primary bevel gear 10 drives the secondary bevel gear 12 to rotate, the secondary bevel gear 12 drives the hollow column 2 to rotate, the hollow column 2 drives the primary ratchet 23 to move, so that the primary ratchet 23 moves clockwise, the primary ratchet 23 drives the primary gear 13 to rotate through the secondary ratchet 44, the primary gear 13 drives the secondary gear 14 to rotate, the secondary gear 14 drives the drive column 15 to move, the drive column 15 drives the drive rod 19 to move, and the drive rod 19 drives the piston 18 to slide back and forth along the inner wall of the vacuum box 17. When the piston 18 gradually moves away from the vacuum box 17, the demulsifier in the reagent box 22 is sucked into the vacuum box 17 through the suction pipe 21. When the piston 18 gradually extends into the vacuum box 17, the piston 18 transports the demulsifier sucked into the vacuum box 17 to the hollow column 2 through the delivery pipe 20, and then transports it to the stirring tube 3 from the hollow column 2. When the demulsifier fills the entire stirring tube 3 and is continuously squeezed by the pressure generated in the vacuum box 17, the backflow prevention cover 6 is lifted up. At this time, the demulsifier is sprayed into the needle coke wastewater through the nozzle. When the primary bevel gear 10 rotates, it will also drive the hollow column 2 to rotate. The hollow column 2 drives multiple stirring tubes 3 to rotate, and the needle coke wastewater injected with the demulsifier is added and stirred to fully mix and demulsify it.

[0046] When all the demulsifier is injected into the needle coke wastewater, the drive motor 11 continues to run, and air is injected into the reagent box 22, the hollow column 2 and the stirring tube 3, and the gas is continuously injected into the wastewater through the nozzle, which can promote the separation efficiency of oil and water after the emulsion layer is demulsified.

[0047] When the driving motor 11 continues to run until the demulsification layer is completely decomposed to meet the separation requirements, the driving motor 11 rotates clockwise, and the output end of the driving motor 11 drives the secondary bevel gear 12 to rotate, and the secondary bevel gear 12 drives the primary bevel gear 10 to rotate, and the primary bevel gear 10 drives the hollow column 2 to rotate. At this time, the primary ratchet 23 driven by the hollow column 2 moves, and the primary gear 13 no longer rotates, so that the injection of gas at the nozzle is stopped, and the hollow column 2 drives the rotating rod 41 to rotate counterclockwise through the clamping block 46, and the rotating rod 41 drives the secondary ratchet 44 set at the bottom to rotate counterclockwise, so that the secondary ratchet 44 is meshed with the secondary ratchet 42, and the rotating rod 41 drives the torsion spring shaft 35 to rotate, and the torsion spring shaft 35 first drives the movable plate 34 to rotate, and the movable plate 34 is misaligned with the drain port 39. At this time, the drain port 39 is opened, so that the needle-shaped The coke wastewater is transported downward and respectively passes through the particle filter 31 and the oil-water separation net 28 for particle filtration and oil-water separation in the wastewater. When one side of the movable plate 34 is attached to one side of the limit plate 36, the torsion spring shaft 35 begins to be rotated and squeezed. When the torsion spring shaft 35 is squeezed to the maximum torsion degree, the movable plate 34 drives the partition plate 33 to rotate through the limit plate 36, and the partition plate 33 drives multiple knocking blocks 38 to move, so that the multiple knocking blocks 38 squeeze and knock the top block 37. When the knocking blocks 38 squeeze and knock the top block 37, the top block 37 drives the bearing block 29 to move upward. The bearing block 29 drives the particle filter 31 to move upward through the two positioning columns 30, and under the action of four vibration springs 32, drives the particle filter 31 to vibrate, so as to prevent the particle filter 31 from being blocked and affecting the filtration rate when impurities are filtered.

[0048] Finally, an external waste liquid tank is connected below the outlet pipe 47, and the valve 48 is opened manually to discharge the filtered wastewater that does not contain particulate impurities and oil stains. When all the wastewater is discharged, the drive motor 11 is turned off. After the drive motor 11 is turned off, the torsion spring shaft 35 is not subjected to external force. At this time, the movable plate 34 is reset by torque, so that the partition plate 33 and the movable plate 34 are closed again, and the sewage discharge door 50 is opened manually to discharge the filtered oil stains. The box cover 8 is opened manually to take out the box cover 8 and its associated mechanisms, and the impurities on the particle filter 31 are taken out to complete the treatment of the needle coke wastewater.

[0049] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. An oil-water separation system for treating needle coke wastewater, comprising a separation box (1), characterized in that: A box cover (8) is slidably mounted on the upper side of the separation box (1), a rotation hole is opened on the upper side of the box cover (8), and a separation mechanism is rotatably mounted in the rotation hole; The separation mechanism comprises a hollow column (2), the upper part of the hollow column (2) being rotatably mounted in a rotating hole, a plurality of air delivery holes being provided on the surface of the hollow column (2), a cross bar (26) being fixedly mounted on the side of the hollow column (2), a scraper (27) being fixedly mounted on the lower side of the cross bar (26), a drug injection assembly being fixedly mounted in the air delivery hole, each of the air delivery holes being fixedly connected to a stirring tube (3), each of the drug injection assemblies being arranged in a corresponding stirring tube (3), and a filter assembly being installed in the separation box (1), the filter assembly being located on the lower side of the stirring tube (3); The filter assembly comprises a partition plate (33), the partition plate (33) being rotatably mounted in a separation box (1), a plurality of drain ports (39) being provided on the surface of the partition plate (33), a movable plate (34) being rotatably mounted on the lower side of the partition plate (33), a plugging portion being provided on the movable plate (34) corresponding to the drain ports (39) one by one, the drain ports (39) being closed when the plugging portion is directly opposite to the drain ports (39), a plurality of limit plates (36) being fixedly mounted on the lower side of the partition plate (33), a transmission unit being fixedly mounted on the upper side of the movable plate (34), an oil-water separation net (28) being fixedly mounted on the inner wall of the separation box (1), two slide grooves being provided on the inner wall of the separation box (1), a vibration unit being slidably mounted in the two slide grooves, and a particle filter net (31) being mounted between the two vibration units.

2. The oil-water separation system for treating needle coke wastewater according to claim 1, characterized in that: The drug injection assembly comprises a plurality of nozzles provided on the surface of a stirring tube (3); a fixing block (4) is fixedly mounted on the inner wall of the stirring tube (3); a telescopic rod (5) is fixedly mounted on the upper side of the fixing block (4); a backflow prevention cover (6) is fixedly mounted on the top of the telescopic rod (5); a return spring (7) is sleeved and mounted on the surface of the telescopic rod (5); a plurality of support rods (16) are fixedly mounted on the upper side of the box cover (8); a same vacuum box (17) is fixedly mounted on the top of the plurality of support rods (16); a piston (18) is slidably mounted on the inner wall of the vacuum box (17); a suction port is provided on one side of the vacuum box (17); and the suction port is provided on the upper side of the box cover (8). A suction pipe (21) is fixedly connected to the opening of the vacuum box (17), and a one-way valve is installed on the suction pipe (21). A reagent box (22) is fixedly installed on the upper side of the vacuum box (17). A material injection hole is provided on one side of the reagent box (22), and the other end of the suction pipe (21) is connected to the material injection hole. A feeding port is provided on the upper side of the reagent box (22). A discharge port is provided on one side of the vacuum box (17), and a delivery pipe (20) is fixedly connected to the discharge port. A one-way valve is fixedly installed on the delivery pipe (20), and the other end of the delivery pipe (20) is rotatably connected to the top end of the hollow column (2). A driving unit is fixedly installed on one side of the piston (18).

3. The oil-water separation system for treating needle coke wastewater according to claim 2, characterized in that: The driving unit comprises a primary pawl (23) which is rotatably mounted on the surface of a hollow column (2), a primary extrusion spring (24) being arranged between the primary pawl (23) and the hollow column (2), a primary gear (13) being rotatably mounted on the upper side of the box cover (8), and a plurality of primary ratchet teeth (25) being arranged at intervals on the inner wall of the primary gear (13).

4. The oil-water separation system for treating needle coke wastewater according to claim 3, characterized in that: The driving assembly further comprises a secondary gear (14), the secondary gear (14) being rotatably mounted on the upper side of the separation box (1), the secondary gear (14) being meshed with the primary gear (13), a driving column (15) being fixedly mounted on the upper side of the secondary gear (14), a driving rod (19) being rotatably mounted on one side of the piston (18), a sliding groove being provided on the surface of the driving rod (19), and the driving column (15) being slidably mounted in the sliding groove.

5. The oil-water separation system for treating needle coke wastewater according to claim 4, characterized in that: The drive unit further comprises a primary bevel gear (10), the primary bevel gear (10) being fixedly mounted on the surface of the hollow column (2), a drive motor (11) being fixedly mounted on the upper side of the box cover (8), a secondary bevel gear (12) being fixedly mounted on the output end of the drive motor (11), the primary bevel gear (10) being meshed with the secondary bevel gear (12).

6. The oil-water separation system for treating needle coke wastewater according to claim 1, characterized in that: The transmission unit comprises a torsion spring shaft (35), the torsion spring shaft (35) is fixedly mounted on the upper side of the movable plate (34), the partition plate (33) is provided with a primary avoidance opening, a connecting block (40) is fixedly mounted on the top of the torsion spring shaft (35), a clamping block (46) is fixedly mounted on the bottom end of the hollow column (2), a rotating rod (41) is slidably mounted on the lower side of the clamping block (46), a clamping groove (45) is formed at the top end of the rotating rod (41), the clamping block (46) can slidably extend into the clamping groove (45), a mounting groove is formed at the bottom end of the rotating rod (41), the top of the connecting block (40) is rotatably mounted in the mounting groove, a secondary pawl (42) is rotatably mounted on the top end of the torsion spring shaft (35), a secondary ratchet (44) is formed on the inner wall of the mounting groove, and a secondary extrusion spring (43) is provided between the secondary pawl (42) and the connecting block (40).

7. The oil-water separation system for treating needle coke wastewater according to claim 1, characterized in that: The vibration unit comprises two bearing blocks (29), the two bearing blocks (29) are slidably mounted in two slide grooves respectively, a positioning column (30) is fixedly mounted on the upper side of each bearing block (29), the particle filter (31) is slidably mounted on the surface of the positioning column (30), a secondary avoidance hole cooperating with the positioning column (30) is provided on the surface of the particle filter (31), and a vibration spring (32) is fixedly mounted on the upper and lower sides of each bearing block (29).

8. The oil-water separation system for treating needle coke wastewater according to claim 7, characterized in that: The vibration unit further comprises a plurality of knocking blocks (38), wherein the plurality of knocking blocks (38) are fixedly mounted on the upper side of the partition plate (33), and a top block (37) is fixedly mounted on the lower side of the two bearing blocks (29).

9. The oil-water separation system for treating needle coke wastewater according to claim 1, characterized in that: The surface of the separation box (1) is provided with a feed inlet, to which an inlet pipe (49) is fixedly connected; a sewage outlet is provided on one side of the lower portion of the separation box (1); a sewage discharge door (50) is rotatably mounted on the separation box (1) on one side of the sewage outlet; a guide outlet is provided at the bottom end of the separation box (1), a guide outlet pipe (47) is fixedly mounted in the guide outlet, and a valve (48) is mounted on the guide outlet pipe (47).

10. The oil-water separation system for treating needle coke wastewater according to claim 1, characterized in that: A bracket (9) is fixedly mounted on the lower side of the separation box (1).

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