Preparation device and preparation method of ultralow-friction nano-composite engine protective agent
Through multi-stage processing and pretreatment mechanisms, the problem of uneven dispersion of nanoparticles in engine protectants is solved, achieving ultra-low friction effect, significantly reducing friction loss and extending engine life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-03
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional engine protectant preparation devices cannot effectively disperse nanoparticles, leading to increased friction coefficient, uneven mixing, and affecting product consistency and performance.
The system employs a multi-stage processing and pretreatment mechanism, including high-frequency ultrasonic dispersion, high-speed shearing, and constant temperature and pressure reaction vessel. Through multi-stage dispersion and mixing technology, it ensures that nanoparticles are uniformly dispersed in the base oil, avoiding agglomeration.
It achieves uniform dispersion of nanoparticles in base oil, reduces the coefficient of friction to below 0.005, reduces wear rate by more than 50%, extends engine life by 50%, and reduces maintenance costs. It is suitable for gasoline, diesel, and ceramic engines.
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Abstract
Description
TECHNICAL FIELD
[0001] The application relates to an engine protective agent preparation device technical field, in particular to an ultra-low friction nano composite engine protective agent preparation device and a preparation method. BACKGROUND
[0002] The ultra-low friction nano composite engine protective agent is a new type of engine maintenance product, the core of which is to form a protective film with ultra-low friction coefficient by compounding nano particles, base oil and additives, the nano particles including nano graphene, nano silicon dioxide and nano molybdenum disulfide, to reduce the wear of internal engine parts, prolong the service life of the engine, and reduce energy consumption, so that the ultra-low friction nano composite engine protective agent needs to be prepared by using the preparation device.
[0003] The traditional engine protective agent preparation device disperses the nano particles by using a single stirring mode, the nano particles are prone to agglomeration due to large surface tension, and form large-size particle agglomerates, which cannot be uniformly dispersed in the base oil, resulting in an increase in the friction coefficient of the protective agent, the ultra-low friction effect cannot be achieved, and the ultra-low friction nano composite protective agent needs to mix base oil, nano particles, antioxidants and anti-wear agents and other components, the mixing structure of the traditional engine protective agent preparation device is simple, the components are not uniformly and sufficiently mixed, and the stratification and precipitation phenomenon is prone to occur, affecting the consistency of the product. SUMMARY
[0004] The purpose of the present application is to provide an ultra-low friction nano composite engine protective agent preparation device and a preparation method to solve the problems in the background art.
[0005] In order to solve the above technical problems, the present application provides the following technical scheme: an ultra-low friction nano composite engine protective agent preparation device and a preparation method, comprising a preparation rack, a pretreatment mechanism is arranged in the inside of the preparation rack, a multistage processing mechanism is arranged below the pretreatment mechanism, the pretreatment mechanism comprises a first mounting sleeve, a mounting rack plate, a base oil processing tank, a nano particle processing tank, two additive processing tanks, two heating sleeves, an input oil pipe, a first stirring structure, an output oil pipe, a ventilation drying fan, equidistantly arranged ultrasonic emulsifying dispersers, a material conveying pipe, a plurality of feeding pipes and two raw material conveying pumps, a raw material output pipe is fixedly connected to the bottom surface of each raw material conveying pump; The multistage processing mechanism comprises a first ultrasonic dispersion cylinder, equidistantly circumferentially arranged high-frequency ultrasonic dispersers, a second high-speed shearing dispersion cylinder, equidistantly circumferentially arranged extension rods, a mounting connecting ring, a third high-pressure homogenization dispersion cylinder, equidistantly circumferentially arranged small high-pressure homogenizers and a constant-temperature constant-pressure reaction kettle, and the constant-temperature constant-pressure reaction kettle is fixedly connected with a second stirring structure at the bottom surface.
[0006] Preferably, the bottom surface of the preparation rack is fixedly connected with a lower bottom plate, the upper surface of the lower bottom plate is fixedly connected with a second mounting sleeve, the outer surface of the second mounting sleeve is fixedly connected with the inner wall of the preparation rack, and the inner wall of the second mounting sleeve is fixedly connected with a finished product storage cylinder.
[0007] Preferably, the bottom surface of the finished product storage cylinder is fixedly connected with a finished product output pipe, the output end of the finished product output pipe sequentially penetrates the second mounting sleeve and the preparation rack and extends to the outside of the preparation rack, the outer surface of the finished product output pipe is fixedly connected with a solenoid valve, and the left side surface of the solenoid valve is fixedly connected with the outer surface of the second mounting sleeve.
[0008] Preferably, the bottom surface of the finished product storage cylinder is fixedly connected with a backflow pipeline, the output end of the backflow pipeline sequentially penetrates the second mounting sleeve and the preparation rack and extends to the outside of the preparation rack, the output end of the backflow pipeline is fixedly connected with a backflow conveying pump, the right side surface of the backflow conveying pump is fixedly connected with the outer surface of the second mounting sleeve, the output end of the backflow conveying pump is fixedly connected with a communication pipe, and the output end of the communication pipe is fixedly connected with the upper surface of the constant-temperature and constant-pressure reaction kettle.
[0009] Preferably, the upper surface of the finished product storage cylinder is fixedly connected with an output pipeline, and the input end of the output pipeline is fixedly connected with a fine filter cylinder.
[0010] Preferably, the input end of the fine filter cylinder is fixedly connected with a coarse filter cylinder, the input end of the coarse filter cylinder is fixedly connected with an input pipeline, and the input end of the input pipeline is fixedly connected with the output end of the constant-temperature and constant-pressure reaction kettle.
[0011] Preferably, the outer surface of the coarse filter cylinder and the outer surface of the fine filter cylinder are fixedly connected with a connecting mounting rod together, and the top end of the connecting mounting rod and the bottom end of the connecting mounting rod are fixedly connected with the bottom surface of the second stirring structure and the upper surface of the finished product storage cylinder, respectively.
[0012] Preferably, the output end of the coarse filter cylinder and the input end of the fine filter cylinder are fixedly connected with a reinforcing rod together, the right end of the reinforcing rod is fixedly connected with a maintenance fence, and the outer surface of the maintenance fence is fixedly connected with the inner wall of the preparation rack.
[0013] Preferably, the outer surface of the maintenance fence is hingedly connected with a maintenance switch door, and one side surface of the maintenance switch door is fixedly connected with a switch handle.
[0014] A preparation method of an ultra-low friction nano-composite engine protective agent preparation device, comprising the following steps: S1: First, connect the heating jacket, first stirring structure, ventilation and drying fan, ultrasonic emulsifier and disperser, raw material delivery pump, and solenoid valve to the power supply. When using this preparation device to prepare and process ultra-low friction nanocomposite engine protectant, first use the first mounting sleeve and mounting plate to fix it to the inner wall of the preparation frame, thereby fixing the base oil treatment tank, nanoparticle treatment tank, and two additive treatment tanks at the top of the preparation frame. Then, use the two heating jackets fixed outside the base oil treatment tank to heat the base oil in the base oil treatment tank to a suitable temperature, reduce the viscosity of the base oil, and facilitate subsequent mixing and dispersion. Then, use the first stirring structure under the base oil treatment tank to stir and disperse the base oil in the base oil treatment tank. Weigh the synthetic base oil, heat it to 40°C, add antioxidants, and stir at 500 r / min for 10 minutes to ensure... The antioxidant is completely dissolved, and the core friction modifier, consisting of boron nitride nanosheets, silane-modified carbon nanotubes, and tungsten sulfide quantum dots, is added to the inside of the nanoparticle processing tank through the feeding pipe on the nanoparticle processing tank. The nanocomposite friction modifier, including boron nitride nanosheets, silane-modified carbon nanotubes, and tungsten sulfide quantum dots, is weighed according to the mass percentage. A dispersing aid is added, and multiple ultrasonic emulsifying dispersers are fixed inside the nanoparticle processing tank to pre-disperse the nanoparticles. The ventilation and drying fan on the nanoparticle processing tank is used to dry the nanoparticles inside the tank to prevent them from agglomerating due to moisture. Since a raw material delivery pump is connected to the bottom of the additive processing tank, the amount of additive delivered in the additive processing tank can be accurately measured by controlling the raw material delivery pump to avoid excessive or insufficient additives affecting product performance. S2: In use, first connect the high-frequency ultrasonic disperser, the high-speed shear machine in the secondary high-speed shear dispersion cylinder, the small high-pressure homogenizer, the constant temperature and pressure reactor, the second stirring structure, and the reflux pump to the power supply. When this preparation device is needed to prepare and process ultra-low friction nanocomposite engine protectant, first use the pretreatment mechanism to transport the pretreated ultra-low friction nanocomposite engine protectant raw material into the primary ultrasonic dispersion cylinder. Then, multiple high-frequency ultrasonic dispersers fixed on the inner wall of the primary ultrasonic dispersion cylinder will generate high-frequency vibrations to fully mix the initially dispersed nanoparticles with the pretreated base oil. Simultaneously, ultrasonic dispersion is performed to further break down nano-agglomerates and achieve initial compounding of nanoparticles with base oil. The raw material is then transported to a secondary high-speed shear dispersion cylinder, where the high-speed shearing machine inside the secondary high-speed shear dispersion cylinder completely breaks down the remaining nano-agglomerates through the shearing force generated by high-speed shearing, so that the nanoparticles are evenly dispersed in the base oil. The raw material is then transported to a tertiary high-pressure homogenizing dispersion cylinder, where multiple small high-pressure homogenizers fixed on the inner wall of the tertiary high-pressure homogenizing dispersion cylinder generate high-pressure extrusion impact, further refining the nanoparticles and ensuring that the nanoparticles are evenly and stably dispersed in the base oil, and are not prone to re-agglomeration. S3: The processed raw materials are transported into the constant-temperature and constant-pressure reaction kettle, the constant-temperature and constant-pressure reaction kettle is used for processing and reacting the raw materials, and the second stirring structure under the constant-temperature and constant-pressure reaction kettle is used for stirring and mixing the raw materials in the constant-temperature and constant-pressure reaction kettle, so that the uneven and insufficient mixing of components is reduced, the stratification and precipitation phenomenon is prone to occur, the nano composite dispersion liquid is slowly added into the base oil-antioxidant system, the stirring speed is increased to 1200 r / min, the stirring is continuously performed for 30 minutes, and the constant-temperature and constant-pressure reaction kettle is naturally cooled to room temperature, so that the ultra-low friction nano composite engine protective agent is obtained.
[0015] Compared with the prior art, the beneficial effects achieved by the present application are: Firstly, the present application is provided with a pretreatment mechanism, which can be fixed in the inner wall of the preparation rack by the first mounting sleeve and the mounting rack plate, so that the base oil treatment tank, the nano particle treatment tank and the two additive treatment tanks can be fixed at the uppermost part of the preparation rack, so that the two heating sleeves fixed outside the base oil treatment tank are used to heat the base oil in the base oil treatment tank to a suitable temperature, so as to reduce the viscosity of the base oil and facilitate subsequent mixing and dispersion. The first stirring structure under the base oil treatment tank is used to stir and disperse the base oil in the base oil treatment tank. The synthetic base oil is heated to 40 DEG C, the antioxidant is added, and the stirring speed is 500 r / min. The stirring time is 10 minutes to ensure that the antioxidant is completely dissolved. The boron nitride nanosheet-silane modified carbon nanotube-tungsten sulfide quantum dot core friction modifier is added into the nano particle treatment tank through the feeding pipe on the nano particle treatment tank. The nano composite friction modifier is weighed according to the mass percentage, including boron nitride nanosheet, silane modified carbon nanotube and tungsten sulfide quantum dot, and the dispersing aid is added. A plurality of ultrasonic emulsifying dispersers are fixed in the nano particle treatment tank to pre-disperse the nano particles in the nano particle treatment tank. The nano particles in the nano particle treatment tank are dried by the ventilation and drying fan on the nano particle treatment tank to avoid the agglomeration of the nano particles due to damp. The raw material conveying pump is connected to the bottom surface of the additive treatment tank, which can accurately measure the amount of additive conveyed in the additive treatment tank by controlling the raw material conveying pump, so as to avoid the influence of excessive or insufficient additives on product performance. The present application can conveniently pretreat the raw materials for preparing the ultra-low friction nano composite engine protective agent and improve the quality of the ultra-low friction nano composite engine protective agent.
[0016] Second, the present application is provided with multi-stage processing mechanism, can utilize the pre-processing mechanism to deliver the pre-processed ultra-low friction nano composite engine protective agent raw material to the inside of the first ultrasonic dispersion cylinder, to utilize the multiple high-frequency ultrasonic dispersers fixed in the inner wall of the first ultrasonic dispersion cylinder to generate high-frequency vibration to fully mix the preliminarily dispersed nanoparticles with the pre-processed base oil, and simultaneously perform ultrasonic dispersion to further break the nano agglomerates, realize the preliminary compounding of the nanoparticles and the base oil, while the raw material is delivered to the inside of the second high-speed shearing dispersion cylinder, the high-speed shearing machine built-in the second high-speed shearing dispersion cylinder is utilized to generate shearing force through high-speed shearing to completely break the remaining nano agglomerates, make the nanoparticles uniformly dispersed in the base oil, and then the raw material is delivered to the inside of the third high-pressure homogenizing dispersion cylinder, multiple small high-pressure homogenizing machines fixed in the inner wall of the third high-pressure homogenizing dispersion cylinder are utilized to generate high-pressure extrusion impact to further refine the nanoparticles, ensure that the nanoparticles are uniformly and stably dispersed in the base oil and are not easy to re-agglomerate, and the processed raw material is delivered to the constant-temperature and constant-pressure reaction kettle, the constant-temperature and constant-pressure reaction kettle is utilized to process and react the raw material under constant temperature and constant pressure, and the second stirring structure under the constant-temperature and constant-pressure reaction kettle is utilized to stir and mix the raw material in the constant-temperature and constant-pressure reaction kettle, thereby reducing the phenomenon of uneven and insufficient mixing of components and easy stratification and precipitation, the three-component nano composite friction modifier synergistically acts to reduce the friction coefficient to below 0.005, reduce the friction loss of the traditional protective agent by more than 50%, the dispersion aid compounded by polyisobutylene succinimide and polyether amine makes the dispersion stability period of the nano component in the base oil reach 12000h, which is 1.4 times longer than that of the traditional product, the wear rate is reduced by 88% compared with the traditional protective agent under the condition of 180MPa high load, solves the problem of failure of the existing product under the load of more than 150MPa, is suitable for high-power density engines, is compatible with gasoline, diesel and ceramic engines, does not need to adjust the formula for different engine models, has strong universality, is directly added according to 1-3wt% of the engine lubricating oil quality, does not need to disassemble the equipment, can prolong the engine life by more than 50%, reduce the operation and maintenance cost, and further improve the quality of the ultra-low friction nano composite engine protective agent. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a perspective view of the additive treatment tank of the present application; Figure 3 It is a bottom perspective view of the base oil treatment tank of the present application; Figure 4 It is a sectional perspective view of the nanoparticle treatment tank of the present application; Figure 5 It is a perspective view of the first ultrasonic dispersion cylinder of the present application; Figure 6 It is a bottom perspective view of the finished product storage cylinder of the present application; Figure 7 isometric view of the fine filter cartridge of the present application.
[0018] 1, preparation rack; 2, pretreatment mechanism; 201, first mounting sleeve; 202, mounting frame plate; 203, base oil treatment tank; 204, heating sleeve; 205, input oil pipe; 206, output oil pipe; 207, first stirring structure; 208, nanoparticle treatment tank; 209, ventilation drying fan; 210, ultrasonic emulsification disperser; 211, material conveying pipe; 212, feeding pipe; 213, raw material conveying pump; 214, raw material output pipe; 215, additive treatment tank; 3, multi-stage treatment mechanism; 301, first-stage ultrasonic dispersion cylinder; 302, high-frequency ultrasonic disperser; 303, second-stage high-speed shearing dispersion cylinder; 304, third-stage high-pressure homogenization dispersion cylinder; 305, small high-pressure homogenizer; 306, extension rod; 307, mounting connecting ring; 308, constant-temperature constant-pressure reaction kettle; 309, second stirring structure; 4, lower base plate; 5, second mounting sleeve; 6, finished product storage cylinder; 7, finished product output pipe; 8, electromagnetic valve; 9, reflux pipeline; 10, reflux conveying pump; 11, communication pipe; 12, input pipeline; 13, coarse filter cartridge; 14, fine filter cartridge; 15, output pipeline; 16, connecting mounting rod; 17, reinforcing rod; 18, maintenance opening door; 19, opening handle; 20, maintenance fence. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. EMBODIMENT
[0020] Please refer to Figures 1-7The utility model provides a preparation frame 1, the inside of preparation frame 1 is provided with pre -treatment mechanism 2, the lower portion of pre -treatment mechanism 2 is provided with multistage processing mechanism 3, pre -treatment mechanism 2 includes first mounting sleeve 201, and the outer surface of first mounting sleeve 201 is fixedly connected with the inner wall of preparation frame 1, and the inner wall of first mounting sleeve 201 is fixedly connected with mounting rack plate 202, and the inner wall of mounting rack plate 202 is fixedly connected with base oil processing tank 203, nano particle processing tank 208 and two additive processing tanks 215 respectively, and the outer surface of base oil processing tank 203 is fixedly connected with two heating jackets 204, and heating jacket 204 is the structure that contains electric heating wire in its inside, and the upper surface of base oil processing tank 203 is fixedly connected with input oil pipe 205, and the bottom of base oil processing tank 203 is fixedly connected with first stirring structure 207, and the output end of first stirring structure 207 is rotatably connected in the inside of base oil processing tank 203, and the bottom of base oil processing tank 203 is fixedly connected with output oil pipe 206, and the upper surface of nano particle processing tank 208 is fixedly connected with ventilating and drying fan 209, and ventilating and drying fan 209 is a kind of ventilating fan that is provided with electric heating resistance wire in ventilating fan outlet, and the inner side wall of nano particle processing tank 208 is fixedly connected with equidistance arranged ultrasonic emulsion disperser 210, and ultrasonic emulsion disperser 210 is the precision processing equipment that realizes liquid-liquid emulsification, solid-liquid dispersion, homogenization and crushing using ultrasonic cavitation effect, and the bottom of nano particle processing tank 208 is fixedly connected with material delivery pipe 211, and the upper surface of each additive processing tank 215 and the upper surface of nano particle processing tank 208 are fixedly connected with feeding pipe 212, and the bottom of each additive processing tank 215 is fixedly connected with raw material delivery pump 213, and the bottom of each raw material delivery pump 213 is fixedly connected with raw material output pipe 214, by setting pre -treatment mechanism 2, can utilize first mounting sleeve 201 and mounting rack plate 202 with preparation frame 1 inner wall fixed, to be able to fix base oil processing tank 203, nano particle processing tank 208 and two additive processing tanks 215 in the uppermost of preparation frame 1, so as to utilize the two heating jackets 204 fixed outside base oil processing tank 203 to heat the base oil in base oil processing tank 203 to suitable temperature, reduce the viscosity of base oil, facilitate subsequent mixing and dispersion, and utilize the first stirring structure 207 under base oil processing tank 203 to stir and disperse the base oil in base oil processing tank 203, and by fixing multiple ultrasonic emulsion dispersers 210 in nano particle processing tank 208, the nano particles in its inside are pre-dispersed, and utilize ventilating and drying fan 209 on nano particle processing tank 208 to dry the nano particles in nano particle processing tank 208, avoid the agglomeration of nano particles due to damp, and since raw material delivery pump 213 is communicated with the bottom of additive processing tank 215, the additive amount in additive processing tank 215 can be accurately measured by controlling raw material delivery pump 213, avoid that the product performance is influenced by excessive or insufficient additive,Play can be convenient to the preparation of the ultra-low friction nanometer composite engine protection agent raw materials for pretreatment, improve the quality of the ultra-low friction nanometer composite engine protection agent role.
[0021] The bottom surface of the preparation rack 1 is fixedly connected with the lower bottom plate 4, the upper surface of the lower bottom plate 4 is fixedly connected with the second mounting sleeve 5, the outer surface of the second mounting sleeve 5 is fixedly connected with the inner wall of the preparation rack 1, the inner wall of the second mounting sleeve 5 is fixedly connected with the finished product storage cylinder 6, the finished product storage cylinder 6 is fixed on the bottom surface of the preparation rack 1 by the lower bottom plate 4, and the finished product storage cylinder 6 is installed in the preparation rack 1 by the second mounting sleeve 5, so that the finished product storage cylinder 6 is used to store the finished ultra-low friction nanometer composite engine protection agent.
[0022] The bottom surface of the finished product storage cylinder 6 is fixedly connected with the finished product output pipe 7, the output end of the finished product output pipe 7 penetrates the second mounting sleeve 5 and the preparation rack 1 in turn and extends to the outside of the preparation rack 1, the outer surface of the finished product output pipe 7 is fixedly connected with the electromagnetic valve 8, the left side surface of the electromagnetic valve 8 is fixedly connected with the outer surface of the second mounting sleeve 5, by opening the electromagnetic valve 8, the finished product storage cylinder 6 in the finished product storage cylinder 6 can be output by the finished product output pipe 7, so that the preparation setting is convenient to use.
[0023] The upper surface of the finished product storage cylinder 6 is fixedly connected with the output pipe 15, the input end of the output pipe 15 is fixedly connected with the fine filter cylinder 14, the output pipe 15 is used to transport the finished product filtered by the fine filter cylinder 14 to the inside of the finished product storage cylinder 6, so as to reduce the impurities in the ultra-low friction nanometer composite engine protection agent.
[0024] The specific implementation of the embodiment is: in use, first, the heating sleeve 204, the first stirring structure 207, the ventilation drying fan 209, the ultrasonic emulsifying disperser 210, the raw material conveying pump 213 and the electromagnetic valve 8 are connected with the power supply, when the preparation device is needed to be used to prepare the ultra-low friction nano composite engine protective agent, first, the first mounting sleeve 201 and the mounting frame plate 202 are fixed with the inner wall of the preparation rack 1, so that the base oil treatment tank 203, the nano particle treatment tank 208 and the two additive treatment tanks 215 can be fixed at the top of the preparation rack 1, so that the two heating sleeves 204 fixed outside the base oil treatment tank 203 are used to heat the base oil in the base oil treatment tank 203 to a suitable temperature, reduce the viscosity of the base oil, facilitate subsequent mixing and dispersion, and the first stirring structure 207 below the base oil treatment tank 203 is used to stir and disperse the base oil in the base oil treatment tank 203, the synthetic base oil is heated to 40℃, the antioxidant is added, stirred at 500r / min for 10 minutes, ensure that the antioxidant is completely dissolved, and the boron nitride nanosheet-silane modified carbon nanotube-tungsten sulfide quantum dot core friction modifier is added to the inside of the nano particle treatment tank 208 through the feeding pipe 212 on the nano particle treatment tank 208, the nano composite friction modifier is weighed according to the mass percentage, including boron nitride nanosheet, silane modified carbon nanotube and tungsten sulfide quantum dot, and a dispersing aid is added, and a plurality of ultrasonic emulsifying dispersers 210 are fixed in the nano particle treatment tank 208 to pre-disperse the nano particles in the inside, and the ventilation drying fan 209 on the nano particle treatment tank 208 is used to dry the nano particles in the nano particle treatment tank 208, to avoid the agglomeration of the nano particles due to damp, and because the raw material conveying pump 213 is communicated with the bottom surface of the additive treatment tank 215, the additive conveying amount in the additive treatment tank 215 can be accurately measured by controlling the raw material conveying pump 213, to avoid the influence of excessive or insufficient additives on product performance. Embodiment
[0025] Please refer to Figures 1-7, the multi-stage processing mechanism 3 includes a first ultrasonic dispersion cylinder 301, the bottom end of the output oil pipe 206, the bottom end of the material conveying pipe 211 and the bottom end of each raw material output pipe 214 are fixedly communicated with the upper surface of the first ultrasonic dispersion cylinder 301, the outer surface of the first ultrasonic dispersion cylinder 301 is fixedly connected with high-frequency ultrasonic dispersers 302 arranged at equal distances in the circumferential direction, the high-frequency ultrasonic disperser 302 is an ultrasonic processing device with a working frequency significantly higher than that of a conventional industrial ultrasonic device and is specially designed for fine dispersion, nanometer-level homogenization and low-damage processing, the output end of each high-frequency ultrasonic disperser 302 extends through the first ultrasonic dispersion cylinder 301 and into the interior of the first ultrasonic dispersion cylinder 301, the bottom surface of the first ultrasonic dispersion cylinder 301 is fixedly communicated with a second high-speed shearing dispersion cylinder 303, the outer surface of the second high-speed shearing dispersion cylinder 303 is fixedly connected with extension rods 306 arranged at equal distances in the circumferential direction, the mutually distal ends of the extension rods 306 are fixedly connected with a mounting connecting ring 307, the outer surface of the mounting connecting ring 307 is fixedly connected with the inner wall of the preparation rack 1, the bottom surface of the second high-speed shearing dispersion cylinder 303 is fixedly communicated with a third high-pressure homogenization dispersion cylinder 304, the inner wall of the third high-pressure homogenization dispersion cylinder 304 is fixedly connected with small high-pressure homogenizers 305 arranged at equal distances in the circumferential direction, the bottom surface of the third high-pressure homogenization dispersion cylinder 304 is fixedly communicated with a constant-temperature and constant-pressure reaction kettle 308, the outer surface of the constant-temperature and constant-pressure reaction kettle 308 is fixedly connected with the inner wall of the preparation rack 1, the bottom surface of the constant-temperature and constant-pressure reaction kettle 308 is fixedly connected with a second stirring structure 309, the output end of the second stirring structure 309 is rotatably connected to the interior of the constant-temperature and constant-pressure reaction kettle 308, by arranging the multi-stage processing mechanism 3, the pre-processed ultra-low-friction nanometer composite engine protective agent raw material can be conveyed into the first ultrasonic dispersion cylinder 301 by the pretreatment mechanism 2, the high-frequency ultrasonic dispersers 302 fixedly arranged on the inner wall of the first ultrasonic dispersion cylinder 301 can be used to generate high-frequency vibrations to fully mix the preliminarily dispersed nanometer particles with the pre-processed base oil and simultaneously perform ultrasonic dispersion to further break the nanometer agglomerates and realize the preliminary compounding of the nanometer particles with the base oil, the raw material is then conveyed into the second high-speed shearing dispersion cylinder 303, the high-speed shearing machine built in the second high-speed shearing dispersion cylinder 303 can be used to break the remaining nanometer agglomerates by the shearing force generated by high-speed shearing to make the nanometer particles uniformly dispersed in the base oil, the raw material is then conveyed into the third high-pressure homogenization dispersion cylinder 304 to make the nanometer particles further refined by the high-pressure extrusion impact generated by the small high-pressure homogenizers 305 fixedly arranged on the inner wall of the third high-pressure homogenization dispersion cylinder 304 to ensure that the nanometer particles are uniformly and stably dispersed in the base oil and are not easy to re-agglomerate, and the processed raw material is conveyed into the constant-temperature and constant-pressure reaction kettle 308 to perform processing reaction on the raw material by the constant-temperature and constant-pressure constant-temperature and constant-pressure reaction kettle 308 and to perform stirring and mixing on the raw material in the constant-temperature and constant-pressure reaction kettle 308 by the second stirring structure 309 below the constant-temperature and constant-pressure reaction kettle 308, thereby reducing the uneven and insufficient mixing of components,The phenomenon of delamination and sedimentation is easy to appear, which can further improve the quality of the ultra-low friction nano composite engine protective agent.
[0026] The bottom surface of the finished product storage cylinder 6 is fixedly connected with a backflow pipeline 9. The output end of the backflow pipeline 9 penetrates the second mounting sleeve 5 and the preparation rack 1 in sequence and extends to the outside of the preparation rack 1. The output end of the backflow pipeline 9 is fixedly connected with a backflow conveying pump 10. The right side surface of the backflow conveying pump 10 is fixedly connected with the outer surface of the second mounting sleeve 5. The output end of the backflow conveying pump 10 is fixedly connected with a communication pipe 11. The output end of the communication pipe 11 is fixedly connected with the upper surface of the constant-temperature and constant-pressure reaction kettle 308. The ultra-low friction nano composite engine protective agent with poor detection quality is conveyed into the constant-temperature and constant-pressure reaction kettle 308 through the communication pipe 11 by the power provided by the backflow conveying pump 10 through the backflow pipeline 9 to continue the processing reaction.
[0027] The input end of the fine filter cylinder 14 is fixedly connected with a coarse filter cylinder 13. The input end of the coarse filter cylinder 13 is fixedly connected with an input pipeline 12. The input end of the input pipeline 12 is fixedly connected with the output end of the constant-temperature and constant-pressure reaction kettle 308. The reactant in the constant-temperature and constant-pressure reaction kettle 308 is conveyed into the coarse filter cylinder 13 through the input pipeline 12 to coarsely filter the finished product and then conveyed into the fine filter cylinder 14 for further filtering.
[0028] The outer surface of the coarse filter cylinder 13 and the outer surface of the fine filter cylinder 14 are fixedly connected with a connecting mounting rod 16. The top end of the connecting mounting rod 16 and the bottom end of the connecting mounting rod 16 are fixedly connected with the bottom surface of the second stirring structure 309 and the upper surface of the finished product storage cylinder 6, respectively. The coarse filter cylinder 13 and the fine filter cylinder 14 are connected through the connecting mounting rod 16 and fixed with the bottom surface of the second stirring structure 309 and the upper surface of the finished product storage cylinder 6 to improve the installation stability of the coarse filter cylinder 13 and the fine filter cylinder 14.
[0029] The output end of the coarse filter cylinder 13 and the input end of the fine filter cylinder 14 are fixedly connected with a reinforcing rod 17. The right end of the reinforcing rod 17 is fixedly connected with a maintenance enclosure 20. The outer surface of the maintenance enclosure 20 is fixedly connected with the inner wall of the preparation rack 1. The output end of the coarse filter cylinder 13 and the input end of the fine filter cylinder 14 are fixedly connected with the inner wall of the maintenance enclosure 20 through the reinforcing rod 17, so as to further improve the installation stability of the coarse filter cylinder 13 and the fine filter cylinder 14.
[0030] The outer surface of the maintenance enclosure 20 is movably hinged with a maintenance switch door 18. One side surface of the maintenance switch door 18 is fixedly connected with a switch handle 19. The maintenance switch door 18 can be opened and closed by manually holding the switch handle 19, so as to facilitate the maintenance and replacement of the coarse filter cylinder 13 and the fine filter cylinder 14.
[0031] The specific implementation of the embodiment is: in use, first, connect the high-frequency ultrasonic disperser 302, the high-speed shearing machine in the secondary high-speed shearing dispersion cylinder 303, the small high-pressure homogenizer 305, the constant-temperature and constant-pressure reaction kettle 308, the second stirring structure 309 and the reflux conveying pump 10 with the power supply in communication, when it is necessary to use the preparation device to prepare the ultra-low friction nano composite engine protective agent, first, use the pretreatment mechanism 2 to convey the pretreated ultra-low friction nano composite engine protective agent raw material to the inside of the primary ultrasonic dispersion cylinder 301, so as to use the plurality of high-frequency ultrasonic dispersers 302 fixed on the inner wall of the primary ultrasonic dispersion cylinder 301 to generate high-frequency vibration to fully mix the preliminarily dispersed nano particles and the pretreated base oil, and simultaneously perform ultrasonic dispersion to further break the nano agglomerates, so as to realize the preliminary compounding of the nano particles and the base oil, while the raw material is conveyed to the secondary high-speed shearing dispersion cylinder 303, the high-speed shearing machine built-in the secondary high-speed shearing dispersion cylinder 303 is used to break the remaining nano agglomerates by the shear force generated by high-speed shearing, so that the nano particles are uniformly dispersed in the base oil, and then the raw material is conveyed to the tertiary high-pressure homogenization dispersion cylinder 304, so as to use the plurality of small high-pressure homogenizers 305 fixed on the inner wall of the tertiary high-pressure homogenization dispersion cylinder 304 to generate high-pressure extrusion impact, so as to further refine the nano particles, and ensure that the nano particles are uniformly and stably dispersed in the base oil and are not easy to re-agglomerate, and then the processed raw material is conveyed to the constant-temperature and constant-pressure reaction kettle 308, so as to use the constant-temperature and constant-pressure constant-temperature and constant-pressure reaction kettle 308 to process and react the raw material, and use the second stirring structure 309 under the constant-temperature and constant-pressure reaction kettle 308 to stir and mix the raw material in the constant-temperature and constant-pressure reaction kettle 308, so as to reduce the phenomenon of uneven and insufficient mixing of components, easy stratification and precipitation, slowly add the nano composite dispersion liquid into the base oil-antioxidant system, increase the stirring speed to 1200 r / min, continuously stir for 30 minutes, and naturally cool to room temperature, so as to obtain the ultra-low friction nano composite engine protective agent, the appearance of the ultra-low friction nano composite engine protective agent is dark brown transparent liquid, the friction coefficient is ≤0.005, the wear rate under 180 MPa load is reduced by ≥85% compared with the traditional protective agent, and the dispersion stability period is ≥12000 h.
[0032] A preparation method of an ultra-low friction nano composite engine protective agent preparation device, comprising the following steps: S1: First, the heating jacket 204, the first stirring structure 207, the ventilation drying fan 209, the ultrasonic emulsification disperser 210, the raw material conveying pump 213 and the electromagnetic valve 8 are connected with the power supply. When the preparation device needs to be used to prepare the ultra-low friction nano composite engine protective agent, the first mounting sleeve 201 and the mounting rack plate 202 are fixed with the inner wall of the preparation rack 1, so that the base oil treatment tank 203, the nano particle treatment tank 208 and the two additive treatment tanks 215 can be fixed at the uppermost of the preparation rack 1. Two heating jackets 204 fixed outside the base oil treatment tank 203 are used to heat the base oil in the base oil treatment tank 203 to a suitable temperature, reduce the viscosity of the base oil, facilitate subsequent mixing and dispersion, and the first stirring structure 207 below the base oil treatment tank 203 is used to stir and disperse the base oil in the base oil treatment tank 203. The synthetic base oil is heated to 40℃, the antioxidant is added, and the stirring speed is 500r / min for 10 minutes to ensure that the antioxidant is completely dissolved. The nitrogenated boron nanosheet-silane modified carbon nanotube-tungsten sulfide quantum dot core friction modifier is added to the inside of the nano particle treatment tank 208 through the feeding pipe 212 on the nano particle treatment tank 208. The nano composite friction modifier including boron nitride nanosheet, silane modified carbon nanotube and tungsten sulfide quantum dot is weighed according to the mass percentage, and the dispersing aid is added. A plurality of ultrasonic emulsification dispersers 210 are fixed in the nano particle treatment tank 208 to pre-disperse the nano particles in it. The ventilation drying fan 209 on the nano particle treatment tank 208 is used to dry the nano particles in the nano particle treatment tank 208 to avoid the agglomeration of the nano particles due to damp. The raw material conveying pump 213 is connected with the bottom surface of the additive treatment tank 215, which can accurately measure the amount of additive conveyed in the additive treatment tank 215 by controlling the raw material conveying pump 213, avoiding the influence of excessive or insufficient additives on product performance; S2: in use, first, the high frequency ultrasonic disperser 302, the high speed shearing machine in the secondary high speed shearing dispersion cylinder 303, the small high pressure homogenizer 305, the constant temperature and constant pressure reaction kettle 308, the second stirring structure 309 and the reflux conveying pump 10 are connected with the power supply, when the preparation device is needed to be used to prepare the ultra-low friction nano composite engine protective agent, first, the pretreated ultra-low friction nano composite engine protective agent raw material is conveyed into the primary ultrasonic dispersion cylinder 301 by the pretreatment mechanism 2, so that the multiple high frequency ultrasonic dispersers 302 fixed in the inner wall of the primary ultrasonic dispersion cylinder 301 can generate high frequency vibration to fully mix the preliminarily dispersed nano particles with the pretreated base oil and perform ultrasonic dispersion, further break the nano agglomerates, realize the preliminary compounding of the nano particles and the base oil, the raw material is conveyed into the secondary high speed shearing dispersion cylinder 303, the high speed shearing machine built-in the secondary high speed shearing dispersion cylinder 303 breaks the remaining nano agglomerates by the shear force generated by high speed shearing, makes the nano particles uniformly dispersed in the base oil, and then the raw material is conveyed into the tertiary high pressure homogenization dispersion cylinder 304, multiple small high pressure homogenizers 305 fixed in the inner wall of the tertiary high pressure homogenization dispersion cylinder 304 generate high pressure extrusion impact, further refine the nano particles, and ensure that the nano particles are uniformly and stably dispersed in the base oil and are not easy to re-agglomerate; S3: the processed raw material is conveyed into the constant temperature and constant pressure reaction kettle 308, the constant temperature and constant pressure reaction kettle 308 is used for processing reaction of the raw material, and the second stirring structure 309 under the constant temperature and constant pressure reaction kettle 308 is used for stirring and mixing the raw material in the constant temperature and constant pressure reaction kettle 308, so as to reduce the uneven and insufficient mixing of components, the phenomenon of stratification and precipitation is easy to appear, the nano composite dispersion liquid is slowly added into the base oil-antioxidant system, the stirring speed is increased to 1200r / min, the stirring is continuously carried out for 30 minutes, and the natural cooling is carried out to room temperature, so that the ultra-low friction nano composite engine protective agent is obtained, the appearance of the ultra-low friction nano composite engine protective agent is dark brown transparent liquid, the friction coefficient is ≤0.005, the wear rate under 180MPa load is reduced by ≥85% compared with the traditional protective agent, and the dispersion stable period is ≥12000h.
[0033] The working principle of the present application is that: in use, first, connect the heating sleeve 204, the first stirring structure 207, the ventilation drying fan 209, the ultrasonic emulsifying disperser 210, the raw material conveying pump 213 and the electromagnetic valve 8 with the power supply; when the preparation device is needed to be used to prepare the ultra-low friction nano composite engine protective agent, first, fix the first mounting sleeve 201 and the mounting frame plate 202 with the inner wall of the preparation rack 1, so that the base oil treatment tank 203, the nano particle treatment tank 208 and the two additive treatment tanks 215 can be fixed at the uppermost part of the preparation rack 1, so that the two heating sleeves 204 fixed outside the base oil treatment tank 203 are used to heat the base oil in the base oil treatment tank 203 to a suitable temperature, reduce the viscosity of the base oil, facilitate subsequent mixing and dispersion, and the first stirring structure 207 below the base oil treatment tank 203 is used to stir and disperse the base oil in the base oil treatment tank 203; the synthesized base oil is heated to 40℃, the antioxidant is added, stirred at 500 r / min for 10 minutes, the antioxidant is ensured to be completely dissolved, and the boron nitride nanosheet-silane modified carbon nanotube-tungsten sulfide quantum dot core friction modifier is added into the nano particle treatment tank 208 through the feeding pipe 212 on the nano particle treatment tank 208; the nano composite friction modifier is weighed according to the mass percentage, including boron nitride nanosheet, silane modified carbon nanotube and tungsten sulfide quantum dot, and a dispersion aid is added; a plurality of ultrasonic emulsifying dispersers 210 are fixed in the nano particle treatment tank 208 to pre-disperse the nano particles in it; the ventilation drying fan 209 on the nano particle treatment tank 208 is used to dry the nano particles in the nano particle treatment tank 208 to avoid the agglomeration of the nano particles due to damp; and because the raw material conveying pump 213 is communicated with the bottom surface of the additive treatment tank 215, the additive treatment tank 215 can be accurately metered to add additives, so as to avoid the influence of excessive or insufficient additives on product performance; in use, first, connect the high-frequency ultrasonic disperser 302, the high-speed shearing machine in the secondary high-speed shearing dispersion cylinder 303, the small high-pressure homogenizer 305, the constant-temperature constant-pressure reaction kettle 308, the second stirring structure 309 and the reflux conveying pump 10 with the power supply; when the preparation device is needed to be used to prepare the ultra-low friction nano composite engine protective agent, first, use the pretreatment mechanism 2 to convey the pretreated ultra-low friction nano composite engine protective agent raw material to the inside of the primary ultrasonic dispersion cylinder 301, so that the plurality of high-frequency ultrasonic dispersers 302 fixed on the inner wall of the primary ultrasonic dispersion cylinder 301 can generate high-frequency vibration to fully mix the preliminarily dispersed nano particles with the pretreated base oil and perform ultrasonic dispersion, further break the nano agglomerates, and realize the preliminary compounding of the nano particles and the base oil; the raw material is conveyed into the secondary high-speed shearing dispersion cylinder 303, the high-speed shearing machine built-in the secondary high-speed shearing dispersion cylinder 303 breaks the remaining nano agglomerates through the shearing force generated by high-speed shearing,The nanoparticles are uniformly dispersed in the base oil, and then the raw material is transported into the three-stage high-pressure homogenization dispersion cylinder 304, so that the nanoparticles are further refined by the high-pressure extrusion impact generated by the plurality of small high-pressure homogenizers 305 fixed on the inner wall of the three-stage high-pressure homogenization dispersion cylinder 304, so as to ensure that the nanoparticles are uniformly and stably dispersed in the base oil and are not easy to re-agglomerate. The treated raw material is transported into the constant-temperature and constant-pressure reaction kettle 308, so as to process and react the raw material by the constant-temperature and constant-pressure constant-temperature and constant-pressure reaction kettle 308, and the raw material in the constant-temperature and constant-pressure reaction kettle 308 is stirred and mixed by the second stirring structure 309 under the constant-temperature and constant-pressure reaction kettle 308, so as to reduce the uneven and insufficient mixing of components, and the phenomenon of stratification and precipitation is easy to occur. The nano-composite dispersion liquid is slowly added into the base oil-antioxidant system, the stirring speed is increased to 1200 r / min, and the stirring is continued for 30 minutes. After natural cooling to room temperature, the ultra-low friction nano-composite engine protective agent is obtained. The appearance of the ultra-low friction nano-composite engine protective agent is dark brown transparent liquid, the friction coefficient is ≤0.005, the wear rate under 180MPa load is reduced by ≥85% compared with the traditional protective agent, and the dispersion stability period is ≥12000h.
[0034] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A device for preparing an ultra-low friction nanocomposite engine protective agent, comprising a preparation frame (1), characterized in that: The preparation frame (1) is equipped with a pretreatment mechanism (2) inside. Below the pretreatment mechanism (2) is a multi-stage treatment mechanism (3). The pretreatment mechanism (2) includes a first mounting sleeve (201), a mounting plate (202), a base oil treatment tank (203), a nanoparticle treatment tank (208), two additive treatment tanks (215), two heating jackets (204), an input oil pipe (205), a first stirring structure (207), an output oil pipe (206), a ventilation drying fan (209), an ultrasonic emulsifying disperser (210) arranged at equal distances, a material conveying pipe (211), several feeding pipes (212), and two raw material conveying pumps (213). The bottom surface of each raw material conveying pump (213) is fixedly connected to a raw material output pipe (214). The multi-stage processing mechanism (3) includes a first-stage ultrasonic dispersion cylinder (301), a high-frequency ultrasonic disperser (302) arranged in equal-distance circumference, a second-stage high-speed shear dispersion cylinder (303), an extension rod (306) arranged in equal-distance circumference, a mounting connecting ring (307), a third-stage high-pressure homogenizing dispersion cylinder (304), a small high-pressure homogenizer (305) arranged in equal-distance circumference, and a constant temperature and pressure reactor (308). The bottom surface of the constant temperature and pressure reactor (308) is fixedly connected to a second stirring structure (309).
2. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 1, characterized in that: The bottom surface of the preparation frame (1) is fixedly connected to a lower base plate (4), and the upper surface of the lower base plate (4) is fixedly connected to a second mounting sleeve (5). The outer surface of the second mounting sleeve (5) is fixedly connected to the inner wall of the preparation frame (1), and the inner wall of the second mounting sleeve (5) is fixedly connected to a finished product storage cylinder (6).
3. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 2, characterized in that: The bottom surface of the finished product storage cylinder (6) is fixedly connected to the finished product output pipe (7). The output end of the finished product output pipe (7) passes through the second mounting sleeve (5) and the preparation frame (1) in sequence and extends to the outside of the preparation frame (1). The outer surface of the finished product output pipe (7) is fixedly connected to the solenoid valve (8). The left side of the solenoid valve (8) is fixedly connected to the outer surface of the second mounting sleeve (5).
4. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 2, characterized in that: The bottom surface of the finished product storage cylinder (6) is fixedly connected to a reflux pipe (9). The output end of the reflux pipe (9) passes through the second mounting sleeve (5) and the preparation frame (1) in sequence and extends to the outside of the preparation frame (1). The output end of the reflux pipe (9) is fixedly connected to a reflux conveying pump (10). The right side of the reflux conveying pump (10) is fixedly connected to the outer surface of the second mounting sleeve (5). The output end of the reflux conveying pump (10) is fixedly connected to a connecting pipe (11). The output end of the connecting pipe (11) is fixedly connected to the upper surface of the constant temperature and pressure reactor (308).
5. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 2, characterized in that: The upper surface of the finished product storage cylinder (6) is fixedly connected to an output pipe (15), and the input end of the output pipe (15) is fixedly connected to a fine filter cylinder (14).
6. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 5, characterized in that: The input end of the fine filter tube (14) is fixedly connected to the coarse filter tube (13), the input end of the coarse filter tube (13) is fixedly connected to the input pipe (12), and the input end of the input pipe (12) is fixedly connected to the output end of the constant temperature and pressure reactor (308).
7. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 6, characterized in that: The outer surfaces of the coarse filter cylinder (13) and the fine filter cylinder (14) are both fixedly connected to a connecting rod (16). The top and bottom ends of the connecting rod (16) are fixedly connected to the bottom surface of the second stirring structure (309) and the upper surface of the finished product storage cylinder (6), respectively.
8. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 6, characterized in that: The output end of the coarse filter tube (13) and the input end of the fine filter tube (14) are both fixedly connected to a reinforcing rod (17). The right end of the reinforcing rod (17) is fixedly connected to a maintenance enclosure (20). The outer surface of the maintenance enclosure (20) is fixedly connected to the inner wall of the preparation frame (1).
9. The apparatus for preparing an ultra-low friction nanocomposite engine protective agent according to claim 8, characterized in that: The outer surface of the maintenance enclosure (20) is movably hinged with a maintenance switch door (18), and a switch handle (19) is fixedly connected to one side of the maintenance switch door (18).
10. The method for preparing an ultra-low friction nanocomposite engine protective agent preparation device according to any one of claims 1-9, characterized in that: Specifically, the following steps are included: S1: First, connect the heating jacket (204), the first stirring structure (207), the ventilation drying fan (209), the ultrasonic emulsifier disperser (210), the raw material conveying pump (213), and the solenoid valve (8) to the power supply. When it is necessary to use this preparation device to prepare and process the ultra-low friction nanocomposite engine protectant, first use the first mounting sleeve (201) and the mounting plate (202) to fix it to the inner wall of the preparation frame (1), so that the base oil treatment tank (203), the nanoparticle treatment tank (208), and the two The additive treatment tank (215) is fixed at the top of the preparation frame (1), thereby using two heating jackets (204) fixed outside the base oil treatment tank (203) to heat the base oil in the base oil treatment tank (203) to a suitable temperature, reducing the viscosity of the base oil and facilitating subsequent mixing and dispersion. The first stirring structure (207) under the base oil treatment tank (203) is used to stir and disperse the base oil in the base oil treatment tank (203). Synthetic base oil is weighed, heated to 40°C, and antioxidants are added at 500... Stir at r / min for 10 minutes to ensure complete dissolution of the antioxidant. Then, add the core friction modifier, boron nitride nanosheets-silane modified carbon nanotubes-tungsten sulfide quantum dots, into the nanoparticle processing tank (208) through the feeding pipe (212). Weigh the nanocomposite friction modifier, including boron nitride nanosheets, silane modified carbon nanotubes, and tungsten sulfide quantum dots, according to the mass percentage. Add the dispersing aid and fix multiple ultrasonic emulsifying dispersers inside the nanoparticle processing tank (208). (210) is used to pre-disperse the nanoparticles inside, and the ventilation drying fan (209) on the nanoparticle processing tank (208) is used to dry the nanoparticles inside the nanoparticle processing tank (208) to prevent the nanoparticles from agglomerating due to moisture. Since the bottom surface of the additive processing tank (215) is connected to the raw material delivery pump (213), the amount of additive delivered in the additive processing tank (215) can be accurately measured by controlling the raw material delivery pump (213) to avoid the excessive or insufficient amount of additive affecting the product performance. S2: When in use, first connect the high-frequency ultrasonic disperser (302), the high-speed shear machine in the secondary high-speed shear dispersion cylinder (303), the small high-pressure homogenizer (305), the constant temperature and pressure reactor (308), the second stirring structure (309), and the reflux pump (10) to the power supply. When it is necessary to use this preparation device to prepare and process the ultra-low friction nanocomposite engine protectant, first use the pretreatment mechanism (2) to transport the pretreated ultra-low friction nanocomposite engine protectant raw material to the interior of the primary ultrasonic dispersion cylinder (301). Then, multiple high-frequency ultrasonic dispersers (302) fixed on the inner wall of the primary ultrasonic dispersion cylinder (301) can be used to generate high-frequency vibration to disperse the pre-dispersed nanoparticles and the pre-treated nanoparticles. The treated base oil is thoroughly mixed and ultrasonically dispersed to further break down the nano-agglomerates and achieve preliminary composite of nanoparticles and base oil. The raw material is then transported to a secondary high-speed shear dispersion cylinder (303). The high-speed shear machine built into the secondary high-speed shear dispersion cylinder (303) is used to completely break down the remaining nano-agglomerates through the shearing force generated by high-speed shearing, so that the nanoparticles are evenly dispersed in the base oil. The raw material is then transported to a tertiary high-pressure homogenizing dispersion cylinder (304). Multiple small high-pressure homogenizers (305) fixed on the inner wall of the tertiary high-pressure homogenizing dispersion cylinder (304) generate high-pressure extrusion impact to further refine the nanoparticles, ensuring that the nanoparticles are evenly and stably dispersed in the base oil and are not prone to re-agglomeration. S3: The processed raw materials are transported to a constant temperature and pressure reactor (308) to process and react the raw materials. The second stirring structure (309) under the constant temperature and pressure reactor (308) is used to stir and mix the raw materials in the constant temperature and pressure reactor (308), thereby reducing the phenomenon of uneven and insufficient mixing of components and easy stratification and precipitation. The nanocomposite dispersion is slowly added to the base oil-antioxidant system, the stirring speed is increased to 1200r / min, and stirring is continued for 30 minutes. After natural cooling to room temperature, the ultra-low friction nanocomposite engine protectant is obtained. The ultra-low friction nanocomposite engine protectant is a dark brown transparent liquid with a friction coefficient ≤0.
005. The wear rate under 180MPa load is ≥85% lower than that of traditional protectants, and the dispersion stability period is ≥12000h.