Electric field enhanced oil-water separation device

Abstract

The present application belongs to the technical field of electric field separation device, and particularly relates to an electric field enhanced oil-water separation equipment, which comprises a separation cylinder, a liquid inlet pipe communicated with the middle of one side of the separation cylinder, a drain pipe communicated with the bottom of the other side of the separation cylinder, a sealing part detachably connected to the top of the separation cylinder, an electrolytic stirring assembly arranged in the middle of the sealing part and arranged in the separation cylinder, a floating scum separation assembly arranged on the upper part of the inner side of the separation cylinder, an exhaust part installed on the sealing part and having an air inlet end communicated with the inside of the separation cylinder, a feeding part installed on the sealing part and having a material outlet end communicated with the inside of the separation cylinder, and a blowdown part coaxially fixed to the bottom of the separation cylinder and having a material inlet end communicated with the inside of the separation cylinder. The electrolytic stirring assembly is arranged to split the oil liquid into small oil droplets, and the demulsifier is mixed with the oily sewage more uniformly, so that the demulsification effect is improved, the generation of flocculation is improved, and the oil-water separation efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of electric field separation devices, and particularly relates to an electric field enhanced oil-water separation device. Background Technology

[0002] In modern industrial production, the demulsification and separation of oil-water emulsions are widely used. Oil-water emulsions are generally formed by two immiscible phases of oil and water under different emulsification processes. Due to varying emulsion stability, the ease of demulsification and separation differs. Using a high-voltage electric field is a relatively effective method for demulsification and separation of emulsions. Existing high-voltage electric field forms used in emulsion demulsification and separation processes include AC, DC, high-frequency power supplies, and pulsed power supplies. However, traditional emulsion demulsification methods have limited effectiveness. Therefore, there is an urgent need for an electric field-enhanced oil-water separation device to address this issue. Summary of the Invention

[0003] The purpose of this invention is to provide an electric field-enhanced oil-water separation device to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] An electric field-enhanced oil-water separation device, comprising:

[0006] A separation cylinder, wherein a liquid inlet pipe is connected to the middle of one side of the separation cylinder and a drain pipe is connected to the bottom of the other side of the separation cylinder;

[0007] A sealing part is detachably connected to the top of the separation cylinder;

[0008] An electrolytic stirring assembly is disposed in the middle of the sealing part, and the electrolytic stirring assembly is disposed inside the separation cylinder;

[0009] A foam separation component is disposed on the upper inner side of the separation cylinder;

[0010] An exhaust section is installed on the sealing section, and the air inlet end of the exhaust section is connected to the interior of the separator cylinder;

[0011] A feeding section is installed on the sealing section, and the discharge end of the feeding section is connected to the inside of the separation cylinder;

[0012] The sludge discharge section is coaxially fixed to the bottom of the separation cylinder, and the feed end of the sludge discharge section is connected to the inside of the separation cylinder.

[0013] Preferably, the sealing part includes a sealing cover, the bottom of which is inserted into the top of the separation cylinder, and the sealing cover is coaxially arranged with the separation cylinder;

[0014] A sealing ring is provided between the sealing cover and the inner wall of the separation cylinder. The sealing ring is sleeved on the outer side of the bottom of the sealing cover and is fixedly connected to the side wall of the sealing cover.

[0015] The feeding section, the venting section, and the electrolytic stirring assembly are all mounted on the sealing cover.

[0016] Preferably, the feeding section includes a feeding cylinder, which is fixed to the sealing cover, and the discharge end of the feeding cylinder is in communication with the interior of the separation cylinder.

[0017] Preferably, the exhaust section includes an exhaust port, which is formed on the sealing cover, and the outlet end of the exhaust port is connected to a flow valve.

[0018] Preferably, the electrolytic stirring assembly includes a central insulating tube, and an anode rod mounting ring is coaxially fixed to the outer side of the top end of the central insulating tube, and the anode rod mounting ring is drivenly connected to a driving part;

[0019] The anode rod mounting ring is rotatably connected to an anode conductive ring, which is embedded in the center of the sealing cover. The anode rod mounting ring and the anode conductive ring are vertically limited in fit.

[0020] A plurality of rotating anode rods are arranged at equal intervals around the outer side of the central insulating tube. The top end of the rotating anode rod is fixedly connected to the bottom of the anode rod mounting ring. The inner side of the bottom of the anode conductive ring is in contact with and electrically connected to the outer side of the top end of the plurality of rotating anode rods. An anode column is fixedly connected to the top of the anode conductive ring.

[0021] The inner side of the central insulating tube is provided with a plurality of rotating cathode rods at equal intervals in the circumferential direction. The top of the plurality of rotating cathode rods is fixed to the bottom of the cathode mounting ring. The cathode mounting ring is rotatably disposed on the inner side of the top of the central insulating tube. The cathode mounting ring is vertically limited to the central insulating tube. The middle of the plurality of rotating cathode rods is fixed to the same bottom bushing. The bottom bushing is coaxially disposed with the bottom end of the central insulating tube and is rotatably connected to the bottom end of the central insulating tube.

[0022] A cathode post is coaxially arranged on the inner side of the cathode mounting ring. The inner top of the rotating cathode rod contacts and is electrically connected to the outer bottom of the cathode post. The cathode post is fixed to the sealing cover.

[0023] Several rotating anode rods are fixedly connected to the same central bushing at their middle portions, and the central bushing is fixedly connected to the middle portion of the central insulating tube; the central bushing is sleeved on the outer side of the middle portion of the central insulating tube;

[0024] The cathode post and the anode post are respectively connected to the negative and positive terminals of the power supply;

[0025] The middle bushing is connected to the bottom bushing in a driving connection.

[0026] Preferably, a plurality of second magnets are circumferentially and equally spaced at the bottom of the central bushing, with adjacent second magnets having opposite polarities;

[0027] The bottom bushing has several first magnets embedded at equal intervals around its top circumference, with adjacent first magnets having opposite polarities.

[0028] The first magnet and the second magnet are magnetically connected;

[0029] The number of the second magnet is four times the number of the first magnet.

[0030] Preferably, the drive unit includes a bevel gear that meshes with the top of the anode rod mounting ring, and the output shaft of a first motor is connected to the shaft of the bevel gear. The fixed end of the first motor is fixed to the sealing cover.

[0031] Preferably, the anode conductive ring is provided with a limiting ring groove, the limiting ring groove is coaxially arranged with the anode conductive ring, a limiting ring slides in the limiting ring groove, the limiting ring is vertically limited and engaged with the limiting ring groove, and the limiting ring is coaxially fixed to the outer side of the middle part of the anode rod mounting ring.

[0032] Preferably, the foam separation assembly includes a foam removal ring, which is coaxially fixed inside the separation cylinder and located above the central bushing.

[0033] The discharge end of the defoaming ring is connected to a plurality of defoaming ports, which are arranged on the side wall of the separation cylinder. The plurality of defoaming ports are arranged at equal intervals around the periphery and are inclined. The high end of the defoaming port is connected to the discharge end of the defoaming ring, and the low end of the defoaming port is connected to a collection trough. The collection trough is coaxially fixed to the outside of the separation cylinder.

[0034] Preferably, the sewage discharge section includes a conical collection trough, which is coaxially fixed to the bottom of the separation cylinder, and the top of the conical collection trough is connected to the bottom of the separation cylinder;

[0035] The conical collection trough has an inverted conical structure, and the bottom end of the conical collection trough is connected to the feed end of the sewage pipe.

[0036] Compared with the prior art, the present invention has the following advantages and technical effects:

[0037] During use, oily wastewater is injected into the separator through the inlet pipe until the liquid level is higher than the foam separation component. Before injection, the drain pipe and sewage discharge section are closed. After injection, the inlet pipe is closed, and it is confirmed that the sealing part is intact with the top of the separator. Then, the electrolytic stirring component is started to electrolyze and stir the oily wastewater. During the electrolysis of oily wastewater, a hydrogen-oxygen mixture is generated. As this gas rises, it forms foam on the surface of the wastewater under cavitation and accumulates at the top of the separator. This gas can be discharged through the exhaust section. During the stirring process, crushing agents are introduced into the separator through the feeding section. The emulsion is stirred to ensure uniform distribution of the demulsifier. At the same time, stirring also disperses the oil in the oily wastewater into small oil droplets, which react with the demulsifier and produce flocs under ionization. After stirring and electrolysis for a period of time, the electrolysis stirring component is turned off. After a period of sedimentation, the flocs are deposited in the sewage discharge section. Due to the centrifugal force during stirring, the foam on the liquid surface also moves towards the inner wall of the separation cylinder. After standing for a period of time, the drain pipe is opened. As the water level drops, the foam is separated by the foam separation component. At the same time, the flocs deposited at the bottom of the sewage discharge section are not discharged by the drain pipe, thus achieving oil-water separation.

[0038] The electrolysis stirring component can stir the oily wastewater while electrolyzing it, causing the oil to break down into small droplets. At the same time, it can mix the demulsifier with the oily wastewater more evenly, improving the demulsification effect. With the improved demulsification effect, the formation of flocs can be significantly increased, thus improving the oil-water separation efficiency. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of the present invention;

[0041] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle;

[0042] Figure 3 For the present invention Figure 1 Enlarged view of a section at point B in the middle;

[0043] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0044] Figure 5 This is a schematic diagram of the internal structure of the sewage trough in Embodiment 2 of the present invention;

[0045] The components are as follows: 1. Separating cylinder; 2. Sealing cap; 3. Sealing ring; 4. Vent; 5. Flow valve; 6. Feeding cylinder; 7. Power supply; 8. First motor; 9. Bevel gear; 10. Foam outlet; 11. Collection tank; 12. Foam ring; 13. Liquid inlet pipe; 14. Rotating anode rod; 15. Rotating cathode rod; 16. Conical collection tank; 17. Sewage pipe; 18. Drainage pipe; 19. Central insulating pipe; 20. Bottom bushing; 21. First magnet; 22. Middle bushing; 23. Anode rod mounting ring; 24. Limiting ring; 25. Anode conductive ring; 26. Anode column; 27. Cathode column; 28. Sewage tank; 29. ​​Second drainage pipe; 30. Magnetic sleeve; 31. Central rotating cylinder; 32. Magnetic throwing block; 33. Sliding rod; 34. Second motor; 35. Spring; 36. Second magnet; 37. Cathode mounting ring. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Example 1:

[0049] Reference Figures 1 to 3 This invention discloses an electric field-enhanced oil-water separation device, comprising:

[0050] Separating cylinder 1, with an inlet pipe 13 connected to the middle of one side of separating cylinder 1 and a drain pipe 18 connected to the bottom of the other side of separating cylinder 1;

[0051] The sealing part is detachably connected to the top of the separator 1;

[0052] An electrolytic stirring assembly is located in the middle of the sealing section and is placed inside the separation cylinder 1;

[0053] The foam separation component is located on the upper inner side of the separation cylinder 1;

[0054] An exhaust section is installed on the sealing section, and the air inlet end of the exhaust section is connected to the inside of the separator 1.

[0055] The feeding section is installed on the sealing section, and the discharge end of the feeding section is connected to the inside of the separation cylinder 1.

[0056] The sewage discharge section is coaxially fixed to the bottom of the separator 1, and the feed end of the sewage discharge section is connected to the inside of the separator 1.

[0057] In use, oily wastewater is injected into the separator 1 through the inlet pipe 13, ensuring the liquid level is higher than the foam separation component. Before injection, the drain pipe 18 and the sewage discharge section are closed. After injection, the inlet pipe 13 is closed, and the sealing part is confirmed to be sealed properly with the top of the separator 1. Then, the electrolytic stirring component is started to electrolyze and stir the oily wastewater. During the electrolysis of the oily wastewater, a hydrogen-oxygen mixture is generated. As this gas rises, it forms foam on the surface of the wastewater under cavitation and accumulates at the top of the separator 1. This gas can be discharged through the exhaust section. During the stirring process, feed is introduced into the separator 1 through the feeding section. Add the demulsifier and stir to distribute it evenly. At the same time, stirring will disperse the oil in the oily wastewater into small oil droplets, which will react with the demulsifier and produce flocs under ionization. After stirring and electrolysis for a period of time, the electrolysis stirring component is turned off. After a period of sedimentation, the flocs are deposited in the sewage discharge section. Due to the centrifugal force during stirring, the foam on the surface of the liquid will also move towards the inner wall of the separation cylinder 1. After standing for a period of time, the drain pipe 18 is opened. As the water level drops, the foam is separated by the foam separation component. At the same time, the flocs deposited at the bottom of the sewage discharge section will not be discharged by the drain pipe 18, thus achieving oil-water separation.

[0058] The electrolysis stirring component can stir the oily wastewater while electrolyzing it, causing the oil to break down into small droplets. At the same time, it can mix the demulsifier with the oily wastewater more evenly, improving the demulsification effect. With the improved demulsification effect, the formation of flocs can be significantly increased, thus improving the oil-water separation efficiency.

[0059] The design is further optimized so that the sealing part includes a sealing cover 2, the bottom of which is inserted into the top of the separation cylinder 1, and the sealing cover 2 is coaxially arranged with the separation cylinder 1.

[0060] A sealing ring 3 is provided between the sealing cover 2 and the inner wall of the separation cylinder 1. The sealing ring 3 is sleeved on the outer side of the bottom of the sealing cover 2 and is fixedly connected to the side wall of the sealing cover 2.

[0061] The feeding section, the venting section, and the electrolytic stirring assembly are all installed on the sealing cover 2.

[0062] The bottom of the sealing cap 2 is coaxially fixed with an annular protrusion that matches the inner diameter of the separator 1. This allows the bottom of the sealing cap 2 to be easily inserted into the top of the separator 1. Meanwhile, the sealing ring 3 embedded on the outer wall of the annular protrusion significantly improves the sealing effect, thus preventing the leakage of the generated hydrogen-oxygen mixture and facilitating gas collection and use.

[0063] The scheme is further optimized. The feeding part includes a feeding cylinder 6, which is fixed to the sealing cover 2. The discharge end of the feeding cylinder 6 is connected to the inside of the separation cylinder 1.

[0064] The design is further optimized so that the exhaust section includes an exhaust port 4, which is opened on the sealing cover 2, and the exhaust port 4 is connected to a flow valve 5 at the outlet end.

[0065] The flow rate of the hydrogen-oxygen mixture discharged from the exhaust port 4 can be controlled by the flow valve 5.

[0066] Since a mixture of hydrogen and oxygen is prone to explosion, a spark plug can be installed at the outlet of flow valve 5 to ignite the hydrogen when the hydrogen-oxygen mixture is discharged, thus consuming all the hydrogen.

[0067] The heat energy generated during hydrogen combustion can also be used to heat water, producing steam. This steam then drives a turbine, which in turn drives a generator to produce and store electrical energy, thus reducing the overall energy consumption of the device during operation.

[0068] The scheme is further optimized. The electrolytic stirring assembly includes a central insulating tube 19. An anode rod mounting ring 23 is coaxially fixed to the outer side of the top end of the central insulating tube 19. The anode rod mounting ring 23 is connected to a drive unit.

[0069] The anode rod mounting ring 23 is rotatably connected to the anode conductive ring 25, which is embedded in the center of the sealing cover 2. The anode rod mounting ring 23 and the anode conductive ring 25 are vertically limited and matched.

[0070] A number of rotating anode rods 14 are arranged at equal intervals around the outer side of the central insulating tube 19. The top of the rotating anode rod 14 is fixedly connected to the bottom of the anode rod mounting ring 23. The inner side of the bottom of the anode conductive ring 25 is in contact with and electrically connected to the outer side of the top of the rotating anode rods 14. An anode column 26 is fixedly connected to the top of the anode conductive ring 25.

[0071] A plurality of rotating cathode rods 15 are evenly spaced around the inner side of the central insulating tube 19. The top of the plurality of rotating cathode rods 15 is fixed to the bottom of the cathode mounting ring 37. The cathode mounting ring 37 is rotatably disposed inside the top of the central insulating tube 19. The cathode mounting ring 37 is vertically limited to the central insulating tube 19. The middle of the plurality of rotating cathode rods 15 is fixed to the same bottom bushing 20. The bottom bushing 20 is coaxially disposed with the bottom end of the central insulating tube 19. The bottom bushing 20 is rotatably connected to the bottom end of the central insulating tube 19.

[0072] A cathode post 27 is coaxially arranged inside the cathode mounting ring 37. The top inner side of the rotating cathode rod 15 contacts and is electrically connected to the bottom outer side of the cathode post 27. The cathode post 27 is fixed to the sealing cover 2.

[0073] Several rotating anode rods 14 are fixedly connected to the same central bushing 22 at their middle parts, and the central bushing 22 is fixedly connected to the middle part of the central insulating tube 19; the central bushing 22 is sleeved on the outer side of the middle part of the central insulating tube 19;

[0074] Cathode post 27 and anode post 26 are connected to the negative and positive terminals of power supply 7, respectively;

[0075] The middle bushing 22 is connected to the bottom bushing 20 for transmission.

[0076] In a further optimized design, several second magnets 36 are embedded at equal intervals around the bottom of the central bushing 22, with adjacent second magnets 36 having opposite polarities.

[0077] A number of first magnets 21 are equally spaced around the top of the bottom bushing 20, with adjacent first magnets 21 having opposite polarities.

[0078] The first magnet 21 and the second magnet 36 are magnetically connected;

[0079] The number of the second magnet 36 is four times the number of the first magnet 21.

[0080] The design is further optimized so that the drive unit includes a bevel gear 9, which meshes with the top of the anode rod mounting ring 23. The shaft of the bevel gear 9 is connected to the output shaft of the first motor 8, and the fixed end of the first motor 8 is fixed to the sealing cover 2.

[0081] The scheme is further optimized by providing a limiting ring groove inside the anode conductive ring 25. The limiting ring groove is coaxially arranged with the anode conductive ring 25. A limiting ring 24 slides inside the limiting ring groove. The limiting ring 24 is vertically limited and matched with the limiting ring groove. The limiting ring 24 is coaxially fixed to the outer side of the middle part of the anode rod mounting ring 23.

[0082] The solution is further optimized so that the foam separation component includes a foam removal ring 12, which is coaxially fixed inside the separation cylinder 1 and is located above the central bushing 22.

[0083] The discharge end of the defoaming ring 12 is connected to a number of defoaming ports 10. The number of defoaming ports 10 are arranged on the side wall of the separation cylinder 1. The number of defoaming ports 10 are arranged at equal intervals around the circumference. The defoaming ports 10 are inclined. The high end of the defoaming port 10 is connected to the discharge end of the defoaming ring 12. The low end of the defoaming port 10 is connected to a collection trough 11. The collection trough 11 is coaxially fixed to the outside of the separation cylinder 1.

[0084] In use, the first motor 8 drives the bevel gear 9 to rotate the anode rod mounting ring 23. The anode rod mounting ring 23 can drive the central insulating tube 19 and several rotating anode rods 14 to rotate together. At the same time, the anode rod mounting ring 23 and the anode conductive ring 25 rotate relative to each other. The outer top of the several rotating anode rods 14 contacts the inner bottom of the anode conductive ring 25, so that the several rotating anode rods 14 can maintain electrical connection with the anode conductive ring 25 while rotating. The positive terminal of the power supply 7 is electrically connected to the anode conductive ring 25 through the anode column 26, so that each rotating anode rod 14 is simultaneously energized when it plays a stirring role.

[0085] When the rotating anode rods 14 rotate, the central bushing 22, which is fixedly connected to the rotating anode rods 14, also rotates, causing the second magnets 36 at its bottom to rotate. The rotation of the second magnets 36, under the action of magnetic force, will drive the first magnets 21 to drive the bottom bushing 20 to rotate relative to the central insulating tube 19. Since the number of second magnets 36 is four times the number of first magnets 21, under the action of magnetic force, the central bushing 22 and the bottom bushing 20 will rotate in opposite directions on the same axis, and the rotational speed of the bottom bushing 20 is four times that of the central bushing 22.

[0086] The rotation of the bottom bushing 20 drives the rotation of several rotating cathode rods 15, which work together with several rotating anode rods 14 to achieve a stirring effect.

[0087] The tops of several rotating cathode rods 15 are fixed to the bottom of the same cathode mounting ring 37. The cathode mounting ring 37 rotates and is vertically limited in conjunction with the central insulating tube 19. Its limiting method is the same as the vertical limiting method between the anode rod mounting ring 23 and the anode conductive ring 25, so it will not be described again.

[0088] One end of the cathode post 27 is fixed to the sealing cover 2 by a bracket, and the other end passes through the center of the cathode mounting ring 37. The outer side of the bottom end of the cathode post 27 contacts the inner side of the top of several rotating cathode rods 15, so that the cathode post 27 can be electrically connected when the several rotating cathode rods 15 rotate. The cathode post 27 is electrically connected to the negative terminal of the power supply 7, so as to realize the energization of each rotating cathode rod 15.

[0089] When energized, the rotating anode rod 14 and rotating cathode rod 15 will electrolyze oily wastewater to produce flocculants and generate byproducts hydrogen and oxygen. During the movement of the rotating anode rod 14 and rotating cathode rod 15, the substances generated in the electrolysis area of ​​the rotating anode rod 14 and rotating cathode rod 15 will be easily separated from the corresponding rotating anode rod 14 or rotating cathode rod 15, thereby improving the electrolysis efficiency.

[0090] The scheme is further optimized so that the sewage discharge section includes a conical collection trough 16, which is coaxially fixed to the bottom of the separation cylinder 1, and the top of the conical collection trough 16 is connected to the bottom of the separation cylinder 1.

[0091] The conical collection trough 16 has an inverted conical structure, and the bottom end of the conical collection trough 16 is connected to the feed end of the sewage pipe 17.

[0092] The conical collection tank 16 has an inverted conical structure, which facilitates the movement of flocculants along its inclined sidewalls after sedimentation, and their accumulation at the feed end of the drain pipe 17.

[0093] Example 2:

[0094] refer to Figures 4 to 5The difference between this embodiment and embodiment 1 is that the bottom of the sewage pipe 17 is connected to a sewage trough 28, and a magnetic sleeve 30 is fixedly connected to the middle of the inner side of the sewage trough 28. The magnetic sleeve 30 is located directly below the discharge end of the sewage pipe 17. A central rotating cylinder 31 is coaxially arranged inside the magnetic sleeve 30. The central rotating cylinder 31 is rotatably arranged inside the sewage trough 28. The output shaft of the second motor 34 is axially connected to the central rotating cylinder 31. The fixed end of the second motor 34 is fixedly connected to the outer wall of the sewage trough 28. Several sliding rods 33 are fixedly connected to the outer side of the central rotating cylinder 31 at equal intervals. Magnetic throwing blocks 32 are slidably connected to the sliding rods 33. Springs 35 are sleeved on the sliding rods 33. One end of the spring 35 is fixedly connected to the outer wall of the central rotating cylinder 31, and the other end of the spring 35 is fixedly connected to the corresponding magnetic throwing block 32.

[0095] A ring formed by splicing several magnetic blocks 32 is coaxially arranged with the central rotating cylinder 31;

[0096] A second drain pipe 29 is connected to one side of the bottom of the sewage trough 28.

[0097] To improve the oil-water separation effect, after adding the demulsifier, magnetic powder is added to the separation cylinder 1. During the generation of flocs, as the stirring proceeds, the magnetic powder particles are encapsulated within them, and then they are deposited at the bottom of the conical collection tank 16. After the deposition is complete, the drain pipe 17 is opened, allowing the flocs to impact the magnetic sleeve 30. At this time, the second motor 34 drives the central rotating drum 31 to rotate. Under the action of centrifugal force, the magnetic throwing block 32 is thrown out, causing the spring 35 to stretch. The magnetic throwing block 32 approaches the magnetic sleeve 30, giving the magnetic sleeve 30 a magnetic force, which adsorbs the flocs containing magnetic powder. The centrifugal force can be adjusted by adjusting the speed of the second motor 34, thereby adjusting the distance between the magnetic throwing block 32 and the magnetic sleeve 30, making it convenient to adjust the attraction force on the flocs. When the deposition is complete, the second motor 34 is stopped, the spring 35 returns to its original state, and the magnetic throwing block moves away from the inner wall of the magnetic sleeve 30, causing its magnetic force to disappear. After the magnetic force disappears, the surface of the magnetic sleeve 30 is rinsed.

[0098] The end of the slide bar 33 is fixed with a limiting block to prevent the magnetic throwing block 32 from falling out.

[0099] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0100] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An electric field-enhanced oil-water separation device, characterized in that, include: A separation cylinder (1) is connected to an inlet pipe (13) in the middle of one side, and a drain pipe (18) is connected to the bottom of the other side of the separation cylinder (1). A sealing part is detachably connected to the top of the separator (1); An electrolytic stirring assembly is disposed in the middle of the sealing part, and the electrolytic stirring assembly is disposed inside the separation cylinder (1); A foam separation assembly is disposed on the upper inner side of the separation cylinder (1); An exhaust section is installed on the sealing section, and the air inlet end of the exhaust section is connected to the interior of the separator (1); The feeding section is installed on the sealing section, and the discharge end of the feeding section is connected to the inside of the separation cylinder (1); The sewage discharge section is coaxially fixed to the bottom of the separation cylinder (1), and the feed end of the sewage discharge section is connected to the inside of the separation cylinder (1); The sealing part includes a sealing cover (2), the bottom of which is inserted into the top of the separation cylinder (1), and the sealing cover (2) is coaxially arranged with the separation cylinder (1); A sealing ring (3) is provided between the sealing cover (2) and the inner wall of the separation cylinder (1). The sealing ring (3) is sleeved on the outer side of the bottom of the sealing cover (2) and is fixedly connected to the side wall of the sealing cover (2). The feeding section, the exhaust section, and the electrolytic stirring assembly are all mounted on the sealing cover (2); The electrolytic stirring assembly includes a central insulating tube (19), and an anode rod mounting ring (23) is coaxially fixed to the outer side of the top end of the central insulating tube (19). The anode rod mounting ring (23) is connected to a driving unit. The anode rod mounting ring (23) is rotatably connected to an anode conductive ring (25), the anode conductive ring (25) is embedded in the center of the sealing cover (2), and the anode rod mounting ring (23) and the anode conductive ring (25) are vertically limited and matched; A plurality of rotating anode rods (14) are arranged at equal intervals around the outer side of the central insulating tube (19). The top end of the rotating anode rod (14) is fixedly connected to the bottom of the anode rod mounting ring (23). The inner side of the bottom of the anode conductive ring (25) is in contact with and electrically connected to the outer side of the top end of the plurality of rotating anode rods (14). An anode column (26) is fixedly connected to the top of the anode conductive ring (25). The inner side of the central insulating tube (19) is provided with a plurality of rotating cathode rods (15) at equal intervals. The top of the plurality of rotating cathode rods (15) is fixed to the bottom of a cathode mounting ring (37). The cathode mounting ring (37) is rotatably disposed on the inner side of the top of the central insulating tube (19). The cathode mounting ring (37) is vertically limited to the central insulating tube (19). The middle part of the plurality of rotating cathode rods (15) is fixed to the same bottom bushing (20). The bottom bushing (20) is coaxially disposed with the bottom end of the central insulating tube (19). The bottom bushing (20) is rotatably connected to the bottom end of the central insulating tube (19). A cathode post (27) is coaxially arranged on the inner side of the cathode mounting ring (37). The inner top of the rotating cathode rod (15) is in contact with and electrically connected to the outer bottom of the cathode post (27). The cathode post (27) is fixed to the sealing cover (2). Several rotating anode rods (14) are fixedly connected to the same central bushing (22) at their middle parts, and the central bushing (22) is fixedly connected to the middle part of the central insulating tube (19); the central bushing (22) is sleeved on the outer side of the middle part of the central insulating tube (19); The cathode column (27) and the anode column (26) are respectively connected to the negative and positive terminals of the power supply (7); The middle bushing (22) is connected to the bottom bushing (20) in a transmission connection.

2. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The feeding section includes a feeding cylinder (6), which is fixed to the sealing cover (2), and the discharge end of the feeding cylinder (6) is connected to the interior of the separation cylinder (1).

3. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The exhaust section includes an exhaust port (4), which is opened on the sealing cover (2), and the exhaust port (4) is connected to a flow valve (5) at the outlet end.

4. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The bottom of the central bushing (22) is circumferentially and equally spaced with a number of second magnets (36), and the polarities of two adjacent second magnets (36) are opposite. The bottom bushing (20) has several first magnets (21) evenly spaced around its top circumference, with adjacent first magnets (21) having opposite polarities; The first magnet (21) and the second magnet (36) are magnetically connected; The number of the second magnet (36) is four times the number of the first magnet (21).

5. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The drive unit includes a bevel gear (9), which meshes with the top of the anode rod mounting ring (23). The bevel gear (9) is shaft-connected to the output shaft of a first motor (8), and the fixed end of the first motor (8) is fixed to the sealing cover (2).

6. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The anode conductive ring (25) is provided with a limiting ring groove, which is coaxially arranged with the anode conductive ring (25). A limiting ring (24) slides in the limiting ring groove, and the limiting ring (24) is vertically limited and matched with the limiting ring groove. The limiting ring (24) is coaxially fixed to the outer side of the middle part of the anode rod mounting ring (23).

7. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The foam separation assembly includes a foam removal ring (12), which is coaxially fixed inside the separation cylinder (1) and is located above the central bushing (22). The discharge end of the defoaming ring (12) is connected to a plurality of defoaming ports (10). The plurality of defoaming ports (10) are arranged on the side wall of the separation cylinder (1). The plurality of defoaming ports (10) are arranged at equal intervals around the periphery. The defoaming ports (10) are inclined. The high end of the defoaming port (10) is connected to the discharge end of the defoaming ring (12). The low end of the defoaming port (10) is connected to a collection trough (11). The collection trough (11) is coaxially fixed to the outside of the separation cylinder (1).

8. The electric field-enhanced oil-water separation device according to claim 1, characterized in that: The sewage discharge section includes a conical collection trough (16), which is coaxially fixed to the bottom of the separation cylinder (1), and the top of the conical collection trough (16) is connected to the bottom of the separation cylinder (1). The conical collection trough (16) has an inverted conical structure, and the bottom end of the conical collection trough (16) is connected to the feed end of the sewage pipe (17).

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