A blending apparatus for graphene lubricating oil

Abstract

This utility model discloses a blending device for graphene lubricating oil. The device includes a heating and stirring mechanism, a grinding and dispersing mechanism, and a separation and storage mechanism arranged sequentially along the oil conveying direction. The output end of the heating and stirring mechanism is connected to the input end of the grinding and dispersing mechanism via a first conveying pipe; the output end of the grinding and dispersing mechanism is connected to the input end of the separation and storage mechanism via a second conveying pipe; and the output end of the separation and storage mechanism is connected to the input end of the grinding and dispersing mechanism via a third conveying pipe. The first conveying pipe is equipped with a first valve and a first pressure pump; and the third conveying pipe is equipped with a second valve and a second pressure pump. In this utility model, the graphene-containing oil is circulated and ground between the grinding and dispersing mechanism and the separation and storage mechanism via the second and third conveying pipes, ensuring thorough grinding and dispersion of the graphene, thus solving the technical problem of low dispersion stability of graphene in oil.

Description

Technical Field

[0001] This utility model relates to a graphene lubricating oil production device, and particularly to a blending device for graphene lubricating oil, belonging to the field of lubricating oil production technology. Background Technology

[0002] Lubricating oil is a liquid lubricant used in various types of machinery to reduce friction and protect the machinery and processed parts. The application of lubricating oil not only reduces wear and extends the life of machinery, but also cleans friction surfaces of scale, disperses stress and provides cushioning, cooling, sealing, rust prevention, and kinetic energy transfer.

[0003] Graphene is an inorganic material with inherent lubricity. On one hand, due to its layered structure and the relatively weak van der Waals forces between the layers, graphene facilitates interlayer sliding compared to other two-dimensional materials, thus improving lubrication performance. On the other hand, graphene sheets, with a thickness of only 0.35 nm, easily penetrate friction surfaces and form a lubricating film on rough surfaces, even repairing rough surfaces, further enhancing lubrication performance. Lubricating oils containing graphene can effectively repair cylinder surface scratches, reduce engine vibration and noise, reduce oil consumption, reduce harmful gas emissions, are energy-saving and environmentally friendly, structurally stable, have good sealing properties, and can increase cylinder pressure. Currently, blending kettles are the main equipment used in the production of graphene lubricating oils. Existing lubricating oil production equipment often produces graphene lubricating oils with uneven mixing and sedimentation after long-term standing, resulting in poor dispersion stability. Therefore, there is a need to provide a blending device for graphene lubricating oils to solve the technical problem of low dispersion stability of graphene in oils. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blending device for graphene lubricating oil.

[0005] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0006] A blending device for graphene lubricating oil includes: a heating and stirring mechanism, a grinding and dispersing mechanism, and a separation and storage mechanism arranged sequentially along the oil conveying direction; the output end of the heating and stirring mechanism is connected to the input end of the grinding and dispersing mechanism via a first conveying pipe; the output end of the grinding and dispersing mechanism is connected to the input end of the separation and storage mechanism via a second conveying pipe; the output end of the separation and storage mechanism is connected to the input end of the grinding and dispersing mechanism via a third conveying pipe; a first valve and a first pressure pump are provided on the first conveying pipe; a second valve and a second pressure pump are provided on the third conveying pipe.

[0007] In a more specific implementation, the blending equipment for graphene lubricating oil further includes an impurity filtration and separation mechanism; the input end of the impurity filtration and separation mechanism is connected to the output end of the separation and storage mechanism through a third feed pipe; the third feed pipe is equipped with a third valve and a third pressure pump.

[0008] In a more specific implementation, the impurity filtration and separation mechanism includes a filtration collection box and a filter membrane; the filter membrane is disposed inside the filtration collection box.

[0009] In a more specific embodiment, the heating and stirring mechanism includes a stirring vessel body, a heating rod, a heating coil, and a stirring paddle; the stirring vessel body is provided with a feed inlet; the heating rod is disposed on the stirring vessel body and extends into the internal space of the stirring vessel body; the heating coil is disposed on the surface of the heating rod; and the stirring paddle is disposed at the bottom of the stirring vessel body.

[0010] In a more specific embodiment, the heating rod is disposed at the center of the top of the mixing vessel.

[0011] In a more specific embodiment, a temperature sensor is provided on the vessel body of the stirred tank; the temperature sensor extends into the internal space of the vessel body; and a temperature gauge is provided on the top of the temperature sensor.

[0012] In a more specific implementation, the blending equipment for graphene lubricating oil further includes an ultrasonic dispersion mechanism; the input end of the ultrasonic dispersion mechanism is connected to the output end of the impurity filtration and separation mechanism via a fourth feed pipe; and a flow control valve is provided on the fourth feed pipe.

[0013] In a more specific embodiment, the ultrasonic dispersion mechanism includes an ultrasonic vessel body, a vibrating rod, an ultrasonic controller, and a transducer; the ultrasonic vessel body is provided with a discharge port; the vibrating rod is disposed on the ultrasonic vessel body and extends into the internal space of the ultrasonic vessel body; the transducer is connected to the vibrating rod; and the ultrasonic controller is connected to the transducer.

[0014] In a more specific embodiment, the ultrasonic vessel body is a tubular vessel body. The ultrasonic vessel body is a slender cylindrical structure with an internal cavity. The ratio of the diameter to the axial length of the ultrasonic vessel body is less than 1, preferably 1 / 10 1 / 5. For the same diameter, the smaller the ratio of the diameter to the axial length of the ultrasonic vessel body, the longer the ultrasonic vessel body, the longer the oil travels within the ultrasonic vessel body, and the more fully it is dispersed.

[0015] In a more specific implementation, the side wall of the ultrasonic reactor body is provided with a feed inlet and a discharge outlet, and the discharge outlet is positioned higher than the feed inlet of the ultrasonic reactor body. The feed inlet of the ultrasonic reactor body is connected to the output end of the impurity filtration and separation mechanism through a fourth conveying pipe, and the discharge outlet is connected to the finished product tank.

[0016] The vibrating rod can be inserted into the cavity from the top of the ultrasonic reactor body to vibrate the oil inside the cavity. For a pre-selected vibrating rod of a specific shape and size, the specific range that the vibrating rod can reach when vibrating in the oil is precisely measured by testing it in an open container. Based on this measurement result, further analysis and calculation are performed to design the diameter and height of the ultrasonic reactor body, ensuring that it matches the reach of the vibrating rod to achieve the best ultrasonic treatment effect.

[0017] Determining the dimensions of the ultrasonic reactor: The oil to be produced is placed into a transparent container (such as a glass reactor) with an open top and an internal diameter and depth much larger than the size of the vibrating rod. The ultrasonic generator is turned on, and the sweep range of the vibrating rod is observed and measured to obtain the sweep distance. Therefore, the inner diameter of the ultrasonic reactor body is set to 90%–95% of the sweep distance of the vibrating rod, and the distance between the end of the vibrating rod and the bottom of the ultrasonic reactor body is also set to 90%–95% of the sweep distance of the vibrating rod.

[0018] Compared with the prior art, the advantages of this utility model include:

[0019] 1) The present invention provides a blending device for graphene lubricating oil. Through the second and third feed pipes, the oil is circulated and ground between the grinding and dispersing mechanism and the separation and storage mechanism, so that the oil is ground more thoroughly, effectively breaking up the soft agglomerates of graphene and improving the dispersion stability of graphene in lubricating oil.

[0020] 2) The present invention provides a blending device for graphene lubricating oil, which can control the cyclic grinding time through a second valve and a second pressure pump, thereby improving the controllability and practicality of the device.

[0021] 3) The present invention provides a blending device for graphene lubricating oil, wherein a heating rod is placed at the center of the top of the mixing vessel, so that the heat can be fully absorbed by the oil, and the oil absorbs heat evenly, reducing heat loss and improving heat utilization.

[0022] 4) The present invention provides a blending device for graphene lubricating oil, which uses a vibrating rod to perform ultrasonic action in the ultrasonic kettle, causing the graphene suspended in the lubricating oil to break down into smaller sizes, which is beneficial to the long-term stable dispersion of graphene.

[0023] 5) The present invention provides a blending device for graphene lubricating oil. Through the filter membrane, a small amount of large graphene agglomerates remaining after the lubricating oil is ground can be filtered out, ensuring that the graphene in the lubricating oil is finer and improving the quality of the oil.

[0024] 6) The present invention provides a blending device for graphene lubricating oil. The flow rate of the oil can be adjusted by a flow control valve on the fourth feed pipe to control the ultrasonic dispersion time, thereby improving controllability.

[0025] 7) This utility model provides a blending device for graphene lubricating oil. By installing a temperature sensor and a thermometer on the mixing vessel, the temperature inside the mixing vessel can be directly obtained. Based on the value on the thermometer, the power of the heating coil can be flexibly adjusted, thereby adjusting the heating temperature, making the operation more intuitive and controllable. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a blending device for graphene lubricating oil provided by this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Stirring vessel body; 2-Heating rod; 3-Stirring paddle; 4-Feed inlet; 5-Motor; 6-Heating coil; 7-Thermometer; 8-Temperature sensor; 9-First valve; 10-First pressure pump; 11-Feed inlet of grinding and dispersing mechanism; 12-Grinding and dispersing mechanism; 13-Discharge outlet of grinding and dispersing mechanism; 14-Second pressure pump; 15-Separation and storage mechanism; 16-Second valve; 17-Third valve; 18-Third pressure pump; 19-Feed inlet; 20-Filter membrane; 21-Suction filtration collection box; 22-Vacuum pump; 23-Vacuum gauge; 24-Flow control valve; 25-Ultrasonic vessel body; 26-Vibrating rod; 27-Ultrasonic controller; 28-Converter; 29-Discharge outlet; 30-Finished product tank. Detailed Implementation

[0029] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0030] Please refer to Figure 1 This is a specific embodiment of the present invention. A blending device for graphene lubricating oil includes: a heating and stirring mechanism, a grinding and dispersing mechanism 12, a separation and storage mechanism 15, an impurity filtration and separation mechanism, and an ultrasonic dispersion mechanism arranged sequentially along the oil conveying direction.

[0031] The output end of the heating and stirring mechanism is connected to the input end of the grinding and dispersing mechanism 12 via a first conveying pipe. The output end of the grinding and dispersing mechanism 12 is connected to the input end of the separation and storage mechanism 15 via a second conveying pipe. The output end of the separation and storage mechanism 15 is connected to the input end of the grinding and dispersing mechanism 12 via a third conveying pipe.

[0032] The first feed pipe is equipped with a first valve 9 and a first pressure pump 10. The third feed pipe is equipped with a second valve 16, a second pressure pump 14, a third valve 17, and a third pressure pump 18. The fourth feed pipe is equipped with a flow control valve 24. The first pressure pump 10 can be located between the first valve 9 and the grinding and dispersing mechanism 12. The second pressure pump 14 can be located between the second valve 16 and the grinding and dispersing mechanism 12. The third pressure pump 18 can be located between the third valve 17 and the impurity filtration and separation mechanism.

[0033] The heating and stirring mechanism includes: a feed inlet 4, a stirring vessel body 1, a heating rod 2, a heating coil 6, a stirring paddle 3, a temperature sensor 8, a thermometer 7, and a motor 5. The feed inlet 4 is located on the stirring vessel body 1. The heating rod 2 is located at the center of the top of the stirring vessel body 1 and extends into the interior space of the stirring vessel body 1. The heating coil 6 is located on the surface of the heating rod 2. The temperature sensor 8 is installed on the stirring vessel body 1. The temperature sensor 8 extends into the interior space of the stirring vessel body 1. A thermometer 7 is located on the top of the temperature sensor 8. The motor 5 is located at the bottom of the stirring vessel body 1. A rotating shaft is located at the center of the top of the motor 5; the rotating shaft is connected to the stirring paddle 3, which extends into the interior space of the stirring vessel body 1.

[0034] Specifically, the raw materials are first prepared and then injected into the mixing vessel 1 through the feed inlet 4. Next, the motor 5 is started. The motor 5 drives the rotating shaft to make the stirring paddle 3 start rotating. At the same time as starting the motor 5, the power supply to the heating coil 6 is turned on, so that the heating rod 2 heats the raw materials. At this time, the raw materials are heated and stirred in the mixing vessel 1 to obtain oil. This utility model uses the motor 5 at the bottom of the mixing vessel 1 to drive the stirring paddle 3 to stir the raw materials, and the heating rod 2 at the top of the mixing vessel to heat the raw materials, so that the raw materials are thoroughly stirred, the operation is simple, and the blending efficiency of graphene and lubricating oil is improved.

[0035] The heating rod 2 is positioned at the center of the top of the mixing vessel body 1 to ensure that the heat is fully absorbed by the oil. In other words, by positioning the heating rod 2 at the center of the top of the mixing vessel body 1, the heat can be fully absorbed by the oil, and the oil absorbs heat evenly. This reduces the amount of heat dissipated outside the mixing vessel body 1, thus reducing heat loss, improving heat utilization, and making it more energy-efficient.

[0036] The temperature sensor 8 is used to detect the temperature inside the vessel body 1 of the stirring tank. It is understood that the temperature sensor is a sensor capable of sensing temperature and converting it into a usable output signal. Temperature sensors are highly accurate in measuring ambient temperature and are widely used in industries, workshops, warehouses, and other fields. In the context of graphene lubrication in this application, different graphene lubricating oil products can be flexibly selected.

[0037] In a specific implementation scenario, the temperature inside the stirred tank 1 is obtained via thermometer 7. When the temperature reaches the optimal threshold, the power of the heating coil 6 is controlled to maintain a constant temperature. It is worth noting that the heating and stirring time in this embodiment can be flexibly adjusted according to different graphene lubricating oil products. For reference, the power of the heating coil 6 can be controlled to maintain a constant temperature of 60°C in the stirred tank 1 for two hours. As can be seen, the heating and stirring time and heating temperature can be flexibly adjusted, improving the controllability of the device.

[0038] The output end of the heating and stirring mechanism is connected to the input end of the grinding and dispersing mechanism 12 via a first conveying pipe. Specifically, one end of the first conveying pipe is connected to the bottom of the side wall of the stirring vessel body 1, and the other end is connected to the bottom of the side wall of the grinding and dispersing mechanism 12, connecting to the feed inlet 11 of the grinding and dispersing mechanism. It should be noted that one end of the first conveying pipe can be connected to the bottom of the side wall of the stirring vessel body 1, and the other end can be connected to any position on the side wall of the grinding and dispersing mechanism 12. The connection method here is not limited to welding, threaded connection, etc.

[0039] The output end of the grinding and dispersing mechanism 12 is connected to the input end of the separation and storage mechanism 15 via a second feed pipe. The output end of the separation and storage mechanism 15 is connected to the input end of the grinding and dispersing mechanism 12 via a third feed pipe. After opening the first valve 9, the first pressure pump 10 is then turned on, and the oil is conveyed from the feed inlet 11 of the grinding and dispersing mechanism to the grinding and dispersing mechanism 12 through the first feed pipe. In the grinding and dispersing mechanism 12, the oil is fully ground and dispersed. When the grinding and dispersing mechanism 12 is gradually filled with oil, the oil is conveyed from the discharge outlet 13 of the grinding and dispersing mechanism to the separation and storage mechanism 15 via the second feed pipe. Then, the oil returns from the separation and storage mechanism 15 to the grinding and dispersing mechanism 12 for grinding via the third feed pipe. In summary, when the first valve 9 is closed, the second valve 16 is open, and the third valve 17 is closed, the oil is circulated and ground between the grinding and dispersing mechanism 12 and the separation and storage mechanism 15 through the second and third feed pipes for a preset grinding time to improve the dispersion stability of the oil. After all the raw materials in the heating and stirring mechanism have entered the grinding and dispersing mechanism 12, close the first valve 9 and the first pressure pump 10. Note that one end of the second conveying pipe is connected to the top of the grinding and dispersing mechanism 12, communicating with the discharge port 13 of the grinding and dispersing mechanism, and the other end is connected to the side wall of the separation and storage mechanism 15. It should be noted that one end of the second conveying pipe can be connected to any position on the top of the grinding and dispersing mechanism 12, and the other end can also be connected to the top of the side wall of the separation and storage mechanism 15. The connection method here is not limited to welding, threaded connection, etc.

[0040] It is understandable that some graphene flakes with larger diameters may appear in the heating and stirring mechanism of the raw materials. When the grinding and dispersing mechanism 12 grinds the graphene with larger diameters, the grinding may be incomplete, resulting in the graphene not being fully dispersed in the lubricating oil, leading to a decrease in oil quality. Therefore, this application adopts a circulating grinding process.

[0041] After all the raw materials in the heating and stirring mechanism have entered the grinding and dispersing mechanism 12, the first valve 9 and the first pressure pump 10 are closed. With the third valve 17 and the third pressure pump 18 not activated, the second valve 16 is opened, followed by the second pressure pump 14. The ground oil is then transported to the grinding and dispersing mechanism 12 via the third feed pipe. After being ground in the grinding and dispersing mechanism 12, the oil is then transported to the separation and storage mechanism 15. At this time, the oil circulates and grinds between the grinding and dispersing mechanism 12 and the separation and storage mechanism 15 via the second and third feed pipes. It is worth noting that the circulating grinding time in this embodiment can be flexibly adjusted according to different graphene lubricating oil products. This invention, through the second valve 16 and the second pressure pump 14, can control the circulating grinding time, improving the controllability and practicality of the device.

[0042] It is understandable that the aggregation of graphene nanoparticles can be divided into two types: soft aggregation and hard aggregation. Soft aggregation is mainly caused by electrostatic forces and van der Waals forces between particles, and since the forces are relatively weak, they can be eliminated through chemical interactions or the application of mechanical energy. Hard aggregation is formed not only by electrostatic forces and van der Waals forces, but also by chemical bonds, making hard aggregates difficult to break down. The graphene nanoparticles in this invention are soft aggregates.

[0043] In this invention, the oil is circulated and ground between the grinding and dispersing mechanism 12 and the separation and storage mechanism 15 via the second and third feed pipes, ensuring that the oil is ground more thoroughly. This mechanical method effectively breaks up the soft agglomerates of graphene, improving the dispersion stability of graphene in lubricating oil.

[0044] After the oil circulation grinding is completed, close the second valve 16 and the second pressure pump 14, open the third valve 17, and then open the third pressure pump 18. The ground oil is then transported from the inlet 19 to the suction collection box 21 through the third conveying pipe.

[0045] To improve the fineness of graphene in the lubricating oil, the blending equipment for graphene lubricating oil also includes an impurity filtration and separation mechanism. The input end of the impurity filtration and separation mechanism is connected to the output end of the separation and storage mechanism 15 via a third feed pipe. The input end of the impurity filtration and separation mechanism is the feed inlet 19.

[0046] The impurity filtration and separation mechanism includes an inlet 19, a filter membrane 20, a filtration collection box 21, a vacuum pump 22, and a vacuum gauge 23. The filter membrane 20 is disposed inside the filtration collection box 21. The inlet 19 is located at the top of the filtration collection box 21. An outlet is located at the bottom of the side wall of the filtration collection box 21; the outlet is connected to a fourth feed pipe. The vacuum pump 22 is located at the bottom of the filtration collection box 21. It should be noted that the inlet 19 can also be located on the side wall of the filtration collection box 21. The vacuum gauge 23 is connected to the vacuum pump 22 and is used to detect the pressure inside the filtration collection box 21.

[0047] Specifically, after the oil circulation grinding is completed, the second valve 16 and the second pressure pump 14 are closed. Then, the third valve 17 and the third pressure pump 18 are opened, and the ground oil is conveyed through the third feed pipe to the impurity filtration and separation mechanism from the inlet 19. Specifically, the vacuum pump 22 is turned on, and the oil first passes through the filter membrane 20 to remove larger graphene flakes. The filtered oil then enters the filtration collection box 21. Here, the filter membrane 20 can filter out a small amount of large graphene agglomerates remaining after the lubricating oil grinding, ensuring that the graphene in the lubricating oil is finer and improving the quality of the oil.

[0048] The aforementioned blending equipment for graphene lubricating oil also includes an ultrasonic dispersion mechanism. The input end of the ultrasonic dispersion mechanism is connected to the output end of the impurity filtration and separation mechanism via a fourth feed pipe. One end of the fourth feed pipe is connected to the bottom of the side wall of the ultrasonic vessel body 25, and the other end is connected to the bottom of the side wall of the filtration collection box 21. It should be noted that one end of the fourth feed pipe can be connected to any position on the side wall of the ultrasonic vessel body 25, and the other end can also be connected to any position on the side wall of the filtration collection box 21. The connection method is not limited to welding, threaded connection, etc. Specifically, the oil material after passing through the impurity filtration and separation mechanism is transported through the fourth feed pipe to the inlet at the lower end of the ultrasonic vessel body 25 and enters the bottom of the ultrasonic vessel body 25. Simultaneously, the ultrasonic controller 27 is activated. Since the inlet is located at the bottom of the ultrasonic vessel body 25, the oil material slowly rises within the ultrasonic vessel body 25, allowing it to fully contact and be vibrated by the vibrating rod 26 inserted into the ultrasonic vessel body 25. After the oil fills the ultrasonic reactor body, the ultrasonically dispersed oil enters the finished product tank 30 through the discharge port 29 above the side wall of the ultrasonic reactor body 25.

[0049] The ultrasonic dispersion mechanism includes an ultrasonic vessel body 25, a vibrating rod 26, an ultrasonic controller 27, and a converter 28. Please refer to [reference needed]. Figure 1 The ultrasonic vessel body 25 is a cylindrical structure with an internal cavity, and its diameter is smaller than its axial length. Specifically, the inner diameter of the ultrasonic vessel body 25 is 90% to 95% of the oscillation distance of the vibrating rod 26, and the distance between the end of the vibrating rod 26 and the bottom of the ultrasonic vessel body 25 is also 90% to 95% of the oscillation distance. The vibrating rod 26 can be inserted into the cavity from the top of the ultrasonic vessel body 25 to vibrate the oil within the cavity. The ultrasonic vessel body 25 and the vibrating rod 26 are spatially matched to ensure that the ultrasonic energy generated by the vibrating rod 26 can fully cover the cross-section of the vessel body, thereby achieving effective dispersion of the material. The ultrasonic vessel body 25 is provided with a discharge port 29. The fourth feed pipe is equipped with a flow control valve 24 for controlling the ultrasonic treatment time.

[0050] In this design, the converter 28 is connected to the vibrating rod 26, and the ultrasonic controller 27 is connected to the converter 28. Specifically, the ultrasonic controller 27 is an ultrasonic wave generator and controller, configured to generate and output ultrasonic electrical signals of a specific frequency, achieving precise control of the material mixing process by adjusting parameters such as output power and oscillation frequency. The converter 28 is an energy conversion component, specifically configured to convert the electrical energy output by the ultrasonic controller 27 into mechanical vibration energy. The vibrating rod 26 is connected to the converter 28 via a transmission mechanism, receiving the mechanical vibration energy transmitted by the converter 28 to generate high-frequency mechanical oscillations within the cavity of the ultrasonic vessel body 25, thereby enabling the material within the cavity to achieve uniform dispersion and mixing at the microscopic level under the action of ultrasonic vibration. The cavitation effect of ultrasound in lubricating oil causes suspended graphene to break down into smaller sizes, which is beneficial for the long-term stable dispersion of graphene. It is worth noting that the fourth feed pipe is equipped with a flow control valve 24, which can adjust the flow rate of the incoming oil to control the ultrasonic dispersion time, thereby improving the controllability of the entire device.

[0051] Unless otherwise specified or indicated, all components mentioned and used in this embodiment can be ordinary components that are widely recognized and commonly used in this technical field and can be easily obtained through conventional purchasing channels in the market.

[0052] In summary, the graphene lubricating oil blending device proposed in this invention allows for control of the circulating grinding time via a second valve and a second pressure pump, improving the controllability and practicality of the device. The oil is circulated and ground between the grinding and dispersing mechanism and the separation and storage mechanism via a second and third feed pipe, ensuring thorough grinding. This mechanical energy method effectively breaks up the soft agglomerates of graphene, improving the dispersion stability of graphene in the lubricating oil. The raw materials are stirred by a motor-driven agitator at the bottom of the mixing vessel and heated by a heating rod at the top of the mixing vessel, ensuring thorough stirring. The operation is simple and improves the blending efficiency of graphene and lubricating oil. Positioning the heating rod at the center of the top of the mixing vessel allows for sufficient heat absorption by the oil, resulting in uniform heat absorption and reduced heat loss to the outside of the mixing vessel. In other words, heat loss is reduced, improving heat utilization and energy efficiency. The heating and stirring time and heating temperature can be flexibly adjusted, further enhancing the controllability of the device. The filter membrane can filter out the small amount of large graphene agglomerates remaining after grinding the lubricating oil, ensuring that the graphene in the lubricating oil is finer and improving the quality of the oil. The cavitation effect of ultrasound in the lubricating oil causes the suspended graphene to break down into smaller sizes, which is beneficial for the long-term stable dispersion of graphene. The fourth feed pipe is equipped with a flow control valve, which can adjust the flow rate of the feed oil to control the ultrasonic dispersion time, thereby improving the controllability of the entire device.

[0053] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A blending device for graphene lubricating oil, characterized in that, include: A heating and stirring mechanism, a grinding and dispersing mechanism (12), and a separation and storage mechanism (15) are arranged sequentially along the oil conveying direction; the output end of the heating and stirring mechanism is connected to the input end of the grinding and dispersing mechanism (12) through a first conveying pipe; the output end of the grinding and dispersing mechanism (12) is connected to the input end of the separation and storage mechanism (15) through a second conveying pipe; the output end of the separation and storage mechanism (15) is connected to the input end of the grinding and dispersing mechanism (12) through a third conveying pipe; a first valve (9) and a first pressure pump (10) are provided on the first conveying pipe; a second valve (16) and a second pressure pump (14) are provided on the third conveying pipe.

2. The blending equipment for graphene lubricating oil according to claim 1, characterized in that, The blending equipment for graphene lubricating oil also includes an impurity filtration and separation mechanism; the input end of the impurity filtration and separation mechanism is connected to the output end of the separation and storage mechanism (15) through a third feed pipe; the third feed pipe is equipped with a third valve (17) and a third pressure pump (18).

3. The blending equipment for graphene lubricating oil according to claim 2, characterized in that, The impurity filtration and separation mechanism includes a filtration collection box (21) and a filter membrane (20); the filter membrane (20) is disposed inside the filtration collection box (21).

4. The blending equipment for graphene lubricating oil according to claim 1, characterized in that, The heating and stirring mechanism includes a stirring vessel body (1), a heating rod (2), a heating coil (6), and a stirring paddle (3); the stirring vessel body (1) is provided with a feed inlet (4); the heating rod (2) is disposed on the stirring vessel body (1) and extends into the internal space of the stirring vessel body (1); the heating coil (6) is disposed on the surface of the heating rod (2); and the stirring paddle (3) is disposed at the bottom of the stirring vessel body (1).

5. The blending equipment for graphene lubricating oil according to claim 4, characterized in that, The heating rod (2) is located at the center of the top of the mixing vessel body (1).

6. The blending equipment for graphene lubricating oil according to claim 4, characterized in that, A temperature sensor (8) is provided on the vessel body (1) of the stirring vessel; the temperature sensor (8) extends into the internal space of the vessel body (1); a temperature gauge (7) is provided on the top of the temperature sensor (8).

7. The blending equipment for graphene lubricating oil according to claim 2, characterized in that, The blending equipment for graphene lubricating oil also includes an ultrasonic dispersion mechanism; the input end of the ultrasonic dispersion mechanism is connected to the output end of the impurity filtration and separation mechanism through a fourth feed pipe; the fourth feed pipe is equipped with a flow control valve (24).

8. The blending equipment for graphene lubricating oil according to claim 7, characterized in that, The ultrasonic dispersion mechanism includes an ultrasonic vessel body (25), a vibrating rod (26), an ultrasonic controller (27), and a converter (28); the ultrasonic vessel body (25) is provided with a discharge port (29); the vibrating rod (26) is disposed on the ultrasonic vessel body (25) and extends into the internal space of the ultrasonic vessel body (25); the converter (28) is connected to the vibrating rod (26); and the ultrasonic controller (27) is connected to the converter (28).

9. The blending equipment for graphene lubricating oil according to claim 8, characterized in that, The ultrasonic vessel body (25) is a cylindrical structure with an internal cavity. The ratio of the diameter to the axial length of the ultrasonic vessel body (25) is 1 / 10 1 / 5. The vibrating rod (26) can be inserted into the cavity from the upper end of the ultrasonic vessel body (25) to vibrate the oil in the cavity.

10. The blending apparatus for graphene lubricating oil according to claim 9, characterized in that, The ultrasonic vessel body (25) is provided with an inlet and an outlet (29) on its side wall. The outlet (29) is positioned higher than the inlet of the ultrasonic vessel body (25). The inlet of the ultrasonic vessel body (25) is connected to the output end of the impurity filtration and separation mechanism through a fourth conveying pipe. The outlet (29) is connected to the finished product tank (30).

11. The blending apparatus for graphene lubricating oil according to claim 10, characterized in that, The inner diameter of the ultrasonic vessel body (25) is 90% to 95% of the oscillation distance of the vibrating rod (26), and the distance between the end of the vibrating rod (26) and the bottom of the ultrasonic vessel body (25) is 90% to 95% of the oscillation distance of the vibrating rod (26).

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