Oil-water separation device based on super-hydrophobic oleophylic porous material

Abstract

The invention discloses an oil-water separation device based on a super-hydrophobic oleophylic porous material, and belongs to the technical field of oil-water separation.The oil-water separation device comprises a machine body, a feeding hopper is installed at the upper end of the machine body, and a super-hydrophobic oleophylic porous net for oil-water separation is installed in the machine body; an oil storage cavity is formed between the super-hydrophobic oleophylic porous net and the inner wall of the machine body, a drainage pipe is installed in the middle of the lower end of the machine body, an oil discharge pipe is installed at the lower end of the oil storage cavity, and control valves are installed on the oil discharge pipe and the drainage pipe; the output end of the servo motor is connected with a center guide rod through a transmission belt, a stirring frame is installed on the center guide rod, and a cleaning component is installed at the lower end of the center guide rod. According to the oil-water separation device based on the super-hydrophobic oleophylic porous material, when oil and water are centrifugally separated, the temperature of the working environment for oil-water separation can be conveniently increased, and the oil-water separation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil-water separation, and specifically to an oil-water separation device based on a superhydrophobic and oleophilic porous material. Background Art

[0002] In fields such as petroleum, chemical industry, and medicine, a large amount of sewage is often generated, and some of the sewage is a mixture of oil and water. In order to facilitate the subsequent treatment of the oil-water mixture, corresponding oil-water separation devices are usually used to effectively separate the oil and water.

[0003] For example, a Chinese patent with the publication number: CN214971926U, the patent name: An oil-water separation device based on a superhydrophobic and superoleophilic metal mesh, and the publication date: December 03, 2021, which includes an oil-water separation cylinder body and a metal mesh provided on the oil-water separation cylinder body. The metal mesh is a superhydrophobic and superoleophilic metal mesh. The oil-water separation cylinder body is provided with a liquid inlet, a water outlet, and an oil outlet; the oil-water separation cylinder body is vertically arranged on a support seat, the oil outlet is opened on the side wall of the oil-water separation cylinder body, and the metal mesh is arranged on the side wall of the oil-water separation cylinder body and closes the oil outlet; a stirring mechanism is arranged inside the oil-water separation cylinder body for stirring the oil-water mixture in the oil-water separator so that the oil phase passes through the metal mesh and is separated. The water outlet is arranged at the bottom of the oil-water separation cylinder body for discharging the separated water phase. The water outlet is connected with a water outlet pipe, and a water valve is arranged on the water outlet pipe for controlling the opening degree of the water outlet pipe; Among the above-mentioned prior arts, the following technical problems exist: Although the existing oil-water separation device can achieve oil-water separation by centrifugation during use, it is not convenient to effectively control the temperature inside the device during oil-water separation. When working in a low-temperature environment, the viscosity of the oil increases, and at the same time, the surface tension of the water increases, thereby increasing the difficulty of oil-water separation.

[0004] Therefore, we propose an oil-water separation device based on a superhydrophobic and oleophilic porous material to solve the problems raised in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide an oil-water separation device based on a superhydrophobic and oleophilic porous material to solve the problem that although the existing oil-water separation devices on the current market can achieve oil-water separation by centrifugation during use, it is not convenient to effectively control the temperature inside the device during oil-water separation. When working in a low-temperature environment, the viscosity of the oil increases, and at the same time, the surface tension of the water increases, thereby increasing the difficulty of oil-water separation.

[0006] To achieve the above object, the present invention provides the following technical solutions: An oil-water separation device based on a superhydrophobic and oleophilic porous material, comprising a body. A feed hopper is installed at the upper end of the body, and a superhydrophobic and oleophilic porous net for oil-water separation is installed inside the body. A storage oil cavity is provided between the superhydrophobic and oleophilic porous net and the inner wall of the body. A drain pipe is installed in the middle of the lower end of the body. An oil discharge pipe is installed at the lower end of the storage oil cavity, and control valves are installed on both the oil discharge pipe and the drain pipe. A servo motor is installed on the side of the upper end of the body, and the output end of the servo motor is connected to a central guide rod through a transmission belt. A stirring frame is installed on the central guide rod, and a cleaning component is installed at the lower end of the central guide rod. An active heating structure for heating the oil-water mixture is installed in the middle of the central guide rod.

[0007] Preferably, the cross-section of the superhydrophobic and oleophilic porous net is arranged in an annular structure.

[0008] By adopting the above technical solution, after the stirring frame rotates, a centrifugal force is generated on the oil-water mixture, and the superhydrophobic and oleophilic porous net with an annular cross-section is used to separate oil and water.

[0009] Preferably, a plurality of stirring frames are evenly distributed on the central guide rod, and each stirring frame is provided with a plurality of branch rods.

[0010] By adopting the above technical solution, through the stirring frame and the branch rods evenly distributed thereon, the oil-water mixture inside the body can be stirred.

[0011] Preferably, the cleaning component includes an adjusting guide disc, a first scraping strip and a second scraping strip. The first scraping strip and the second scraping strip are fixedly installed at the edge of the adjusting guide disc, and the first scraping strip and the second scraping strip are respectively located inside and outside the superhydrophobic and oleophilic porous net.

[0012] By adopting the above technical solution, by rotating the adjusting cutter disc, the first scraping strip and the second scraping strip at its edge can be driven to rotate synchronously.

[0013] Preferably, the first scraping strip and the second scraping strip are respectively attached to the inner surface and the outer surface of the superhydrophobic and oleophilic porous net, and both the first scraping strip and the second scraping strip are arranged in an arc structure.

[0014] By adopting the above technical solution, by the mutual attachment of the first scraping strip and the second scraping strip to the inner and outer surfaces of the superhydrophobic and oleophilic porous net, the impurities attached to the superhydrophobic and oleophilic porous net can be conveniently scraped off.

[0015] Preferably, the movable heating structure includes a positioning post, a heater, a protruding portion, a cleaning blade, a concave portion, a linkage rod, a driving rod, a clamping block, a driving groove, and a return spring. The positioning post is installed in the middle of the central guide rod, and a heater is fixed inside the positioning post. The edge of the positioning post bulges outward to form a protruding portion, and a cleaning blade is arranged on the side of the positioning post. The cleaning blade is fixed on the central guide rod. An inward concave portion is formed on the cleaning blade, and a linkage rod is fixed in the middle of the upper end of the positioning post. The upper end of the linkage rod is inserted with a driving rod, and a clamping block is fixed on the side of the driving rod. The clamping block is inserted into the driving groove on the linkage rod, and the driving rod is connected to the linkage rod through a return spring.

[0016] By adopting the above technical solution, the return spring can be used to make the driving rod reset and rebound after moving on the linkage rod.

[0017] Preferably, the protruding portions are evenly distributed on the surface of the positioning post, the surface of the positioning post is in mutual fit with the cleaning blade, and the protruding portions on the positioning post correspond to the concave portions on the cleaning blade one by one.

[0018] By adopting the above technical solution, when the positioning post rotates, the impurities attached to its protruding portion and surface can be scraped off by the cleaning blade and the concave portion.

[0019] Preferably, the linkage rod can rotate in the middle of the central guide rod, and the driving rod can slide on the linkage rod.

[0020] By adopting the above technical solution, the rotation of the linkage rod on the central guide rod can enable the positioning post at its end to rotate synchronously.

[0021] Preferably, the outer wall of the clamping block on the driving rod is in mutual fit with the inner wall of the driving groove on the linkage rod, and the driving groove is arranged in a spiral structure.

[0022] By adopting the above technical solution, through the movement of the clamping block on the side of the driving rod in the spiral driving groove, the linkage rod can be rotated.

[0023] Preferably, a pressure application plate is arranged at the upper end of the driving rod, and the pressure application plate is fixed on the output end of the air cylinder.

[0024] By adopting the above technical solution, by opening the air cylinder, the driving rod can be pushed and extruded by the pressure application plate on the telescopic end.

[0025] Compared with the prior art, the beneficial effect of the present invention is that this oil-water separation device based on superhydrophobic and oleophilic porous materials can conveniently increase the working environment temperature of oil-water separation when performing centrifugal separation of oil and water, and improve the oil-water separation effect; 1. A superhydrophobic and oleophilic porous mesh is provided. Due to the centrifugal force generated when the stirring frame rotates, the oil-water mixture inside it is thrown outward under centrifugal action. The superhydrophobic and oleophilic porous mesh blocks the water in the oil-water mixture, while the oil liquid penetrates through the superhydrophobic and oleophilic porous mesh and enters the interior of the oil storage cavity, thereby realizing the automatic separation of oil and water. 2. A first scraping strip and a second scraping strip are provided. When the central guide rod rotates, the adjusting guide disc can rotate synchronously. By the rotation of the adjusting guide disc, the first scraping strip and the second scraping strip can rotate synchronously. By the rotation of the first scraping strip and the second scraping strip, the impurities attached to the inner and outer surfaces of the superhydrophobic and oleophilic porous mesh can be scraped and cleaned. 3. A heater is provided. When the heater is turned on, the positioning column can heat up and contact with the oil-water mixture to achieve temperature increase. The protruding part at the edge of the positioning column can increase the contact area with the oil-water mixture, preventing the increase of the viscosity of the oil and the surface tension of the water in the low-temperature state. 4. A driving rod is provided. When the driving rod moves inside the linkage rod, the clamping block can move in the spiral driving groove, thereby enabling the linkage rod to drive the positioning column to rotate. By the rotation of the positioning column, the cleaning blade can be used to clean the impurities attached to the surface of the positioning column, avoiding the large attachment of impurities on the surface of the positioning column and affecting the subsequent heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a front three-dimensional structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the superhydrophobic and oleophilic porous mesh and the central guide rod of the present invention; Figure 3 is a structural schematic diagram of the oil storage cavity and the drain pipe of the present invention; Figure 4 is a structural schematic diagram of the positioning column and the cleaning blade of the present invention; Figure 5 is a structural schematic diagram of the cleaning blade and the concave part of the present invention; Figure 6 is of the present invention Figure 1 an enlarged structural schematic diagram at A in; Figure 7 is a structural schematic diagram of the positioning column and the heater of the present invention; Figure 8 is of the present invention Figure 7 an enlarged structural schematic diagram at B in.

[0027] In the figure: 1, body; 2, feed hopper; 3, superhydrophobic and oleophilic porous mesh; 4, oil storage chamber; 5, drain pipe; 6, oil discharge pipe; 7, servo motor; 8, drive belt; 9, central guide rod; 10, stirring frame; 11, cleaning component; 111, adjusting guide plate; 112, first scraping strip; 113, second scraping strip; 12, movable heating structure; 121, positioning column; 122, heater; 123, protruding part; 124, cleaning blade; 125, concave part; 126, linkage rod; 127, driving rod; 128, clamping block; 129, driving groove; 1210, return spring; 13, cylinder; 14, pressing plate. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: Please refer to Figures 1 - 8, although the existing oil-water separation device can achieve oil-water separation by centrifugation during use, it is not convenient to effectively control the temperature inside the device during oil-water separation. When the working environment is at a low temperature, the viscosity of the oil increases, and at the same time, the surface tension of the water increases, thereby increasing the difficulty of oil-water separation. To solve this technical problem, the following technical content is disclosed in this embodiment. An oil-water separation device based on a superhydrophobic and oleophilic porous material includes a body 1. A feed hopper 2 is installed at the upper end of the body 1, and a superhydrophobic and oleophilic porous net 3 for oil-water separation is installed inside the body 1. A storage oil chamber 4 is provided between the superhydrophobic and oleophilic porous net 3 and the inner wall of the body 1. A drain pipe 5 is installed in the middle at the lower end of the body 1. An oil discharge pipe 6 is installed at the lower end of the storage oil chamber 4, and control valves are installed on both the oil discharge pipe 6 and the drain pipe 5. A servo motor 7 is installed on the side at the upper end of the body 1, and the output end of the servo motor 7 is connected to a central guide rod 9 through a transmission belt 8. A stirring frame 10 is installed on the central guide rod 9, and a cleaning component 11 is installed at the lower end of the central guide rod 9. An active heating structure 12 for heating the oil-water mixture is installed in the middle of the central guide rod 9. The cross-section of the superhydrophobic and oleophilic porous net 3 is arranged in an annular structure. A plurality of stirring frames 10 are evenly distributed on the central guide rod 9, and each stirring frame 10 is provided with a plurality of branch rods. The cleaning component 11 includes an adjusting guide disc 111, a first scraping strip 112, and a second scraping strip 113. The first scraping strip 112 and the second scraping strip 113 are fixedly installed at the edge of the adjusting guide disc 111. The first scraping strip 112 and the second scraping strip 113 are respectively located inside and outside the superhydrophobic and oleophilic porous net 3. The first scraping strip 112 and the second scraping strip 113 are respectively attached to the inner surface and the outer surface of the superhydrophobic and oleophilic porous net 3, and both the first scraping strip 112 and the second scraping strip 113 are arranged in an arc structure.

[0030] When oil-water separation is required, the oil-water mixture is added into the interior of the machine body 1 through the feed hopper 2. The movable heating structure 12 is turned on to heat up the oil-water mixture by using the movable heating structure 12, preventing the increase of the viscosity of oil and the surface tension of water in the low-temperature state. The servo motor 7 is turned on. The turning on of the servo motor 7 can drive the central guide rod 9 to rotate by using the transmission belt 8. The rotation of the central guide rod 9 can cause the stirring frame 10 to rotate. The rotation of the stirring frame 10 can cause the oil-water mixture inside the machine body 1 to generate centrifugal force. At this time, the oil in the oil-water mixture penetrates through the superhydrophobic and oleophilic porous mesh 3 and enters into the interior of the oil storage cavity 4, while the water source stays on the inner side of the superhydrophobic and oleophilic porous mesh 3. The rotation of the central guide rod 9 can drive the adjusting guide disc 111 to rotate synchronously. The rotation of the adjusting guide disc 111 can drive the first scraping strip 112 and the second scraping strip 113 to rotate synchronously. Since the first scraping strip 112 and the second scraping strip 113 are in mutual contact with the inner and outer surfaces of the superhydrophobic and oleophilic porous mesh 3, the impurities attached to the inner and outer surfaces of the superhydrophobic and oleophilic porous mesh 3 can be cleaned when the first scraping strip 112 and the second scraping strip 113 rotate. After the oil-water separation is completed, the control valves on the drain pipe 5 and the oil discharge pipe 6 are opened, and the oil in the oil storage cavity 4 is discharged outward through the oil discharge pipe 6, while the water source is discharged outward through the drain pipe 5.

[0031] Embodiment 2: The technical content disclosed in this embodiment is a further improvement based on the above Embodiment 1. The following technical content is disclosed in this embodiment. The movable heating structure 12 includes a positioning column 121, a heater 122, a protruding portion 123, a cleaning blade 124, a concave portion 125, a linkage rod 126, a driving rod 127, a clamping block 128, a driving groove 129, and a return spring 1210. The positioning column 121 is installed in the middle of the central guide rod 9, and a heater 122 is fixed inside the positioning column 121. The edge of the positioning column 121 bulges outwards to form a protruding portion 123, and a cleaning blade 124 is arranged on the side of the positioning column 121. The cleaning blade 124 is fixed on the central guide rod 9. An inward concave portion 125 is formed on the cleaning blade 124. A linkage rod 126 is fixed in the middle of the upper end of the positioning column 121. The upper end of the linkage rod 126 is inserted with a driving rod 127, and a clamping block 128 is fixed on the side of the driving rod 127. The clamping block 128 is inserted into the driving groove 129 on the linkage rod 126. The driving rod 127 is connected to the linkage rod 126 through a return spring 1210. The protruding portions 123 are evenly distributed on the surface of the positioning column 121. The surface of the positioning column 121 is in mutual contact with the cleaning blade 124. The protruding portions 123 on the positioning column 121 correspond to the concave portions 125 on the cleaning blade 124 one by one. The linkage rod 126 can rotate in the middle of the central guide rod 9, and the driving rod 127 can slide on the linkage rod 126. The outer wall of the clamping block 128 on the driving rod 127 is in mutual contact with the inner wall of the driving groove 129 on the linkage rod 126. The driving groove 129 is arranged in a spiral structure. A pressure application plate 14 is arranged at the upper end of the driving rod 127, and the pressure application plate 14 is fixed on the output end of the air cylinder 13.

[0032] During oil-water separation, the heater 122 inside the positioning column 121 is turned on. The activation of the heater 122 can raise the temperature of the positioning column 121. Through the temperature increase of the positioning column 121, heat exchange can be carried out with the oil-water mixture, achieving the heating and temperature increase of the oil-water mixture. Through the protruding parts 123 evenly distributed on the surface of the positioning column 121, the contact area between the positioning column 121 and the oil-water mixture can be increased. Then, the cylinder 13 is turned on. After the cylinder 13 is turned on, the pressing plate 14 can move up and down reciprocally. When the pressing plate 14 moves downward, it can squeeze the driving rod 127, causing the clamping block 128 on the side of the driving rod 127 to move in the spiral driving groove 129 inside the linkage rod 126. As a result, the linkage rod 126 rotates. The rotation of the linkage rod 126 can drive the positioning column 121 to rotate synchronously. After the positioning column 121 rotates, the impurities on its surface and the protruding parts 123 can be scraped off by the cleaning blade 124 and the concave part 125, thereby ensuring the cleanliness of the surface of the positioning column 121 and avoiding the large attachment of impurities from affecting the heat exchange effect of the positioning column 121. When the pressing plate 14 moves upward and resets, the driving rod 127 and the clamping block 128 rebound under the action of the return spring 1210. After the clamping block 128 resets, the linkage rod 126 can drive the positioning column 121 to rotate in the reverse direction. This process repeats in a cycle to achieve self-cleaning while heating the oil-water mixture.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0034] In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oil-water separation device based on super-hydrophobic and oleophilic porous materials, comprising a body (1), a feed hopper (2) being installed at the upper end of the body (1), and a super-hydrophobic and oleophilic porous net (3) for oil-water separation being installed inside the body (1), an oil storage cavity (4) being arranged between the super-hydrophobic and oleophilic porous net (3) and the inner wall of the body (1), a drain pipe (5) being installed at the middle of the lower end of the body (1), an oil drain pipe (6) being installed at the lower end of the oil storage cavity (4), and control valves being installed on both the oil drain pipe (6) and the drain pipe (5), characterized in that: A servo motor (7) is mounted on the upper side of the machine body (1), and the output end of the servo motor (7) is connected to a central guide rod (9) via a transmission belt (8). A stirring frame (10) is mounted on the central guide rod (9), and a cleaning component (11) is mounted on the lower end of the central guide rod (9). A movable heating structure (12) for heating an oil-water mixture is mounted in the middle of the central guide rod (9).

2. The oil-water separation device based on super hydrophobic oleophilic porous material according to claim 1, characterized in that: The cross section of the super hydrophobic and oleophilic porous network (3) is arranged in a ring structure.

3. The oil-water separation device based on super hydrophobic oleophilic porous material according to claim 1, characterized in that: A plurality of stirring racks (10) are evenly distributed on the central guide rod (9), and each stirring rack (10) is provided with a plurality of branch rods.

4. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 1, characterized in that: The cleaning component (11) comprises an adjusting guide plate (111), a first scraping strip (112) and a second scraping strip (113), wherein the first scraping strip (112) and the second scraping strip (113) are fixedly mounted on the edge of the adjusting guide plate (111), and the first scraping strip (112) and the second scraping strip (113) are respectively located on the inner side and the outer side of the super hydrophobic oleophilic porous mesh (3).

5. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 4, characterized in that: The first scraper bar (112) and the second scraper bar (113) are respectively bonded to the inner surface and the outer surface of the super hydrophobic and oleophilic porous net (3), and the first scraper bar (112) and the second scraper bar (113) are both arranged as arc-shaped structures.

6. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 1, characterized in that: The movable heating structure (12) comprises a positioning column (121), a heater (122), a protrusion (123), a cleaning scraper (124), an inner recess (125), a linkage rod (126), a driving rod (127), a clamping block (128), a driving groove (129) and a return spring (1210); the positioning column (121) is installed in the middle of the central guide rod (9), and the heater (122) is fixed inside the positioning column (121); the edge of the positioning column (121) is arched outward to form the protrusion (123), and the side of the positioning column (121) is provided with a cleaning scraper (124). A scraper blade (124) is provided, and the cleaning scraper blade (124) is fixed on the central guide rod (9); the cleaning scraper blade (124) is inwardly recessed to form an inner recess (125); a linkage rod (126) is fixed to the middle of the upper end of the positioning column (121); a driving rod (127) is inserted into the upper end of the linkage rod (126); a clamping block (128) is fixed to the side of the driving rod (127); the clamping block (128) is inserted into a driving groove (129) on the linkage rod (126); and the driving rod (127) and the linkage rod (126) are connected to each other via a return spring (1210).

7. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 6, characterized in that: The protrusions (123) are evenly distributed on the surface of the positioning column (121), and the surface of the positioning column (121) and the cleaning blade (124) fit each other, and the protrusions (123) on the positioning column (121) correspond one to one with the recesses (125) on the cleaning blade (124).

8. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 6, characterized in that: The linkage rod (126) is capable of rotating at the middle of the central guide rod (9), and the driving rod (127) is capable of sliding on the linkage rod (126).

9. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 6, characterized in that: The outer wall of the clamping block (128) on the driving rod (127) and the inner wall of the driving groove (129) on the linkage rod (126) fit together, and the driving groove (129) is configured as a spiral structure.

10. The oil-water separation device based on super hydrophobic and oleophilic porous materials according to claim 6, characterized in that: A pressure plate (14) is provided at the upper end of the driving rod (127), and the pressure plate (14) is fixed on the output end of the cylinder (13).

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