1342 results about "Waste oil" patented technology

The invention discloses an ionic liquid catalyst for producing renewable fuel from waste grease as well as a preparation method and application of the ionic liquid catalyst, and belongs to the technical field of waste grease treatment. The self-synthesized ionic liquid catalyst is adopted to catalyze hydrogenation of the waste oil and fat to produce renewable fuel, impurities in the waste oil and fat can be adsorbed or converted into products, the yield and quality of the products are improved, and a foundation is laid for industrial production of second-generation biodiesel from the waste oil and fat.

The invention discloses a composite modified waste cooking oil biological asphalt mixture and a preparation method thereof. The asphalt mixture comprises the following substances in percentage by mass: 4-7wt% of biological asphalt, 89-92wt% of aggregate, 2-3wt% of mixed mineral powder and 0.5-1.0 wt% of lignin fiber, the biological asphalt is prepared from the following substances in percentage by mass: 50 to 58 weight percent of matrix asphalt, 18 to 20 weight percent of waste cooking oil, 15 to 18 weight percent of mixed rubber powder, 2 to 2.5 weight percent of polymer modifier, 6 to 8 weight percent of mixed resin and 1 to 1.5 weight percent of additive. The preparation method comprises the following steps: preparing biological asphalt; respectively putting the aggregates with various grades of particle sizes, the mixed mineral powder and the biological asphalt into a drying oven for heating; sequentially putting the biological asphalt and the aggregate with various grades of particle sizes into a mixing pot, and mixing; sequentially adding the mixed mineral powder and the lignin fiber into the mixing pot, and continuously mixing to obtain the composite modified waste cooking oil biological asphalt mixture. The biological asphalt is prepared in a layer-by-layer progressive mode, and the technical problem that the doping amount of the waste cooking oil and the performance of the biological asphalt are difficult to achieve balance is solved.

The invention belongs to the technical field of batteries, and particularly relates to a waste oil mediated preparation method of a whole-domain low-defect pseudographite domain-rich hard carbon material and a method and high-rate sodium ion energy storage. The preparation method comprises the following steps: uniformly mixing and stirring dried biomass and waste grease, putting the mixture into a tubular furnace, heating under protective gas, carrying out high-temperature carbonization, washing with a diluted hydrochloric acid solution and deionized water in sequence, and drying to obtain the waste oil mediated whole-domain low-defect pseudo-graphite domain high-rate hard carbon negative electrode material. According to the waste oil mediated global low-defect and pseudo-graphite domain-enriched high-rate hard carbon negative electrode material obtained by the invention, the structural stability of the material in an ion intercalation / deintercalation process is enhanced, the cycle life of an electrode is effectively prolonged, the high-rate performance of the material can be considered while the platform capacity is ensured, and the service life of the material is prolonged. And it is ensured that the electrode can still maintain high capacity output and good cycling stability under the large-current charging and discharging condition.

The invention discloses a kitchen waste oil-based sophorolipid high-yield candida utilis strain and an application thereof. Belongs to the technical field of directional domestication breeding. According to the method, wild candida bombicola is used as an original strain, and is sequentially domesticated in a culture medium containing kitchen waste oil with the concentration gradient of 2%, 4%, 6%, 8% and 10% to obtain the S.bombicola x10. The invention further discloses an application of the domesticated strain in fermentation production of sophorolipid, after the strain is subjected to shake flask fermentation, the sophorolipid yield reaches 60.19 g / L and is improved by 16.22% compared with that of a wild strain, and the acid type sophorolipid yield is improved by 32.11%. When the concentration of the lactone sophorolipid generated by fermentation is 1.25 mg / mL, the growth of the bacillus subtilis is completely inhibited. The invention provides an excellent production strain for industrial production of sophorolipid, and has good theoretical research significance and practical application value.

The invention provides a dirty oil sludge treatment method and skid-mounted dirty oil sludge treatment equipment, the method comprises treatment of dirty oil, aged oil, oily sludge and the like, and the main steps are as follows: short-time demulsification is performed through special equipment, and then primary and secondary centrifugal separation is performed to separate water, solid residues and other impurities in the dirty oil sludge, so that the dirty oil sludge is treated. And reduction and recycling of the oil sludge are realized. According to the skid-mounted dirty oil sludge treatment equipment, dirty oil sludge is pumped to a filter to remove large-particle-size impurities, then the dirty oil sludge enters a preheater to be heated, and the heated dirty oil enters a core treatment unit to be subjected to high-energy physical nucleation demulsification; feeding the demulsified sump oil into a horizontal screw centrifuge for solid-liquid separation, and bagging the separated solid residues or feeding the separated solid residues into a sludge drying pry; feeding a separated liquid phase into a three-phase disc centrifuge, carrying out oil-water separation, conveying separated oil out for refining, and conveying separated water out to a sewage treatment plant. And finally, physical and chemical inspection of an oil-phase, water-phase and solid-phase product is inspected, and operation parameters and the technological process are adjusted.

The invention discloses a system and a method for producing biological aviation kerosene by using waste oil and belongs to the technical field of biological aviation kerosene preparation. The method comprises the following steps: (1) the waste grease and a magnetic catalyst loaded with ionic liquid are mixed and enter a suspended bed pre-hydrogenation reactor for reaction to obtain a pre-hydrogenation product, a carrier in the magnetic catalyst loaded with the ionic liquid is Fe3O4 magnetic particles coated with a silicon dioxide layer, and the ionic liquid is molybdenum-based ionic liquid; (2) separating the pre-hydrogenation product to obtain a primary hydrogenation product; (3) performing hydrogenation upgrading on the primary hydrogenation product to obtain an upgraded intermediate product; (4) separating the upgrading intermediate product to obtain a secondary hydrogenation upgrading product; and (5) carrying out hydroisomerization reaction on the secondary hydrogenation upgrading product to obtain the biological aviation kerosene. According to the method, the magnetic catalyst loaded with the ionic liquid is adopted to catalyze the waste grease, recycling can be achieved under the action of a magnetic field, the catalytic stability is high, and industrial stable production can be achieved without supplementing the catalyst.

The utility model relates to a kitchen oil separation device capable of recycling waste oil, and belongs to the field of waste oil recovery. The device comprises a shell which comprises a centrifugal part and an oil receiving part, and the centrifugal part is provided with a smoke inlet; the oil receiving ring is fixed in the oil receiving part and is provided with an oil leakage hole; the liquid separation plate is arranged on the oil receiving ring; the smoke exhaust pipe is fixed in the centrifugal part and comprises a sealing part, a hollow part and a connecting part; wherein an impeller is installed in the hollow-out part, a first scraping plate is connected to the liquid separation plate in an abutting mode, and a connecting rod is fixed between the impeller and the first scraping plate. Oil smoke gas is sucked through the negative pressure effect to enter the centrifugal part through the smoke inlet to impact the liquid separation plate to intercept large-particle oil dirt and stay on the liquid separation plate, the oil dirt is finally collected into the groove in the oil receiving ring, small-particle oil dirt enters the hollow part along with airflow and forms vortex through the air holes formed in the inclined angle, the vortex enables oil-gas mixtures to be centrifugally separated, and oil-gas separation is achieved. And finally, the small-particle oil is adhered to the surface of the hollow part and falls onto the liquid separation plate again under the action of gravity, so that waste oil recovery is realized.

This application discloses an ionic liquid catalyst for producing renewable fuel from waste oils and fats, as well as its preparation method and application, belonging to the field of waste oil and fat processing technology. Using a self-synthesized ionic liquid catalyst to catalyze the hydrogenation of waste oils and fats to produce renewable fuels, this catalyst can adsorb or convert impurities in the waste oils and fats into products, improving product yield and quality. This paves the way for the industrialized production of second-generation biodiesel from waste oils and fats.

The utility model discloses an improved oily water treatment device, and belongs to the technical field of sewage treatment. The device comprises a sewage storage tank, a gravity oil separation tank, an air floatation tank, a biochemical tank, a heating storage tank, a waste oil tank, a dosing tank and a dehydration system. According to the device, primary oil-water separation is performed from a pretreatment stage through a heating system of the heating storage tank, so that the operation load of subsequent units is reduced; a waste oil tank is added, treated oily sewage with still high oil content is pumped into the waste oil tank, floating oil at the upper end of the waste oil tank is collected through a floating oil device, oily sewage at the bottom repeatedly passes through an oil separation floating oil device to be retreated, and the water content of the waste oil is reduced until effluent reaches the standard of a biochemical system. Finally, the purpose of improving the oil-water separation effect of the gravity oil-separation air floatation equipment is achieved. The device performs repeated treatment according to the oil content index of the effluent of the oil separation floating device, reduces the chemical consumption and the power consumption, improves the separation effect, and has positive influences on the environment and the economy.

The invention belongs to the technical field of electric spindles, and particularly relates to an electric spindle and a machine tool. Wherein the machine body assembly is provided with an oil inlet channel and an oil return channel; the shaft core is supported on the machine body assembly through the bearing assembly. One end of the oil injection structure is communicated with the oil inlet channel, and the other end of the oil injection structure is communicated with an inner raceway of the first bearing or the second bearing. A spacer bush arranged on the shaft core in a sleeving mode is arranged between the first bearing and the second bearing, the spacer bush is provided with a flow guide channel and a backflow channel communicated with the oil return channel, and the flow guide channel is provided with an oil throwing inclined face so that waste oil in the first bearing and the second bearing can be guided to the backflow channel. According to the motorized spindle and the machine tool, the flow guide channel is arranged on the spacer bush, the oil slinging slope on the flow guide channel can form forced backflow through centrifugal force, oil return automation is achieved, and old oil and redundant oil are prevented from affecting bearing lubrication and cooling.

The invention relates to the technical field of universal joint transmission, in particular to a universal joint transmission shaft assembly which comprises a cross shaft, four bearing sleeves are connected to the cross shaft, roller pins are arranged between the bearing sleeves and the cross shaft, oil seals are installed on one sides of the bearing sleeves and make contact with the surface of the cross shaft, and an oil injection pipeline is arranged in the cross shaft. According to the design, the driving assembly is arranged on the cross shaft, a worker can control the second circular ring to move through the driving assembly, and the second circular ring can pull the oil seal on the side where waste oil is completely discharged so that the oil seal can be better attached to the cross shaft; when oil is injected, waste oil can be discharged from the position between the oil seal on the side with the smaller gap and the cross shaft, so that the amount of fresh oil flowing out of the cross shaft during oil injection is reduced, waste of the fresh oil is avoided, the situation that the waste oil cannot be discharged from the oil seal on the side with the smaller gap is avoided, the lubricating effect is ensured, and the service life is prolonged.

The utility model belongs to the technical field of separating devices, and relates to an oil-liquid separating device of a numerical control grinding machine tool, which comprises a separating cylinder, a filtering device, a machine frame and a separating motor, the separating cylinder is arranged on the lower portion of the machine frame, an oil-liquid tank, a rotating drum and a rotating shaft coaxial with the separating cylinder are arranged in the separating cylinder, and the lower end of the rotating shaft is connected with the separating motor. The oil liquid tank is coaxially suspended in the separation barrel, the filtering device is arranged above the oil liquid tank and comprises a filtering box, an electric heating strip, a magnetic stirring rod and a stirring rotating shaft, a filtering net disc is arranged at the bottom of the filtering box, and the upper end of the stirring rotating shaft is connected with a stirring motor. The electric heating strip melts greasy dirt condensed on waste chips and then flows into the lower separating barrel along with an oil-liquid mixture for centrifugal separation, a centrifugal separation method is adopted for oil-liquid separation, waste oil and cutting fluid are rapidly separated, and the recycling speed of the cutting fluid is increased.

The utility model belongs to the technical field of vacuum pumps, and particularly relates to an oil supplementing and changing system for a vacuum pump, which is characterized in that a balance oil delivery tank is arranged on one side of the vacuum pump or a vacuum pump group, a first vent is arranged at the top of the balance oil delivery tank, a first oil discharge outlet is arranged at the bottom of the balance oil delivery tank, and a first liquid level transmitter is arranged on one side of the balance oil delivery tank; a second air vent is formed in the top of an oil tank of the vacuum pump or the vacuum pump set and connected with a first valve, the first valve is communicated with the balance oil conveying tank through a pipeline, and a second oil discharge outlet is formed in the bottom of the oil tank of the vacuum pump or the vacuum pump set and connected with a second valve and a third valve. The second valve is connected with the waste oil tank through a pipeline, and the third valve is connected with the first oil outlet through a pipeline. According to the utility model, a large amount of labor cost is saved, and the problem that parts of the vacuum pump are abraded due to lack of lubricating oil or deterioration of the lubricating oil caused by mistakes and omissions of manual operation is avoided.

The present invention provides an insulating oil replacement device for an oil-immersed transformer, which relates to the technical field of transformers and includes an oil tank and a support frame. An oil cover is installed at the upper end of the oil tank through bolts, and a replacement mechanism is installed on one side of the oil tank. In the present invention, the user installs the connecting frame through the cooperation between the engaging frame and the engaging groove, inserts the liquid guide pipe into the connecting pipe, and then the user pulls the temporary storage box, causing the temporary storage box to rotate around the fixed rod so that the liquid discharge pipe is connected to the temporary storage box. Then the user can open the valve to discharge the waste oil in the oil tank. After the discharge is completed, the user can place the storage barrel filled with new oil into the pouring groove, and the new oil will flow into the oil tank along the liquid guide pipe and the connecting pipe, thus eliminating the need to open the oil cover, reducing the working difficulty of the user, and also avoiding the situation where external impurities enter the oil tank and cause pollution, improving the overall service life.

The utility model belongs to the technical field of waste oil treatment, and particularly relates to a waste oil treatment and recovery device which comprises a shell, a plug pin structure is installed at the front end of the shell, inclined panels are fixedly connected to the middle of the inner wall of the shell, and a filter plate is arranged on the inner wall of the shell and located between the inclined panels. A self-locking mechanism is installed in the top square inclined panel and the filter plate, and a sealing mechanism is installed on the inner wall of the front end of the filter plate. According to the utility model, through the mutual cooperation of the curved surface of the curved-surface cylinder and the curved-surface ring, the sliding rod and the inclined surface block structure, and under the action of the elastic force of the first spring, the filter plate can be conveniently and quickly mounted and unlocked, and the filter plate can be conveniently replaced; and through a bolt rod, a bolt column and a groove formed in the top end of the filter plate handle, the two ends of the filter plate are limited, so that the stress of the two ends of the filter plate is the same, and the filter plate is prevented from being bent.

The application relates to the technical field of pavement materials, and particularly discloses a high-strength asphalt-based pavement material and a preparation method and application thereof. The high-strength asphalt-based pavement material comprises the following raw material components in mass fractions: waste rubber powder 60-80 parts, base asphalt 20-50 parts, sodium lignosulfonate modified petroleum resin 10-20 parts, deacidified waste oil 5-15 parts and solid filler 20-30 parts; wherein the raw material components of the solid filler comprise furan resin glass fiber reinforced material, cement kiln dust, blast furnace slag and coal gangue powder. The high-strength asphalt-based pavement material provided by the application has excellent road performance, can maintain good stability at low temperatures, is not prone to cracking, the raw material components are cheap and easy to obtain, the preparation cost is low, and the treatment pressure of solid waste can be effectively relieved.

The invention discloses a preparation method and application of an oil-soluble heteropolyacid ionic liquid catalyst. The catalyst is composed of organic cations and inorganic anions, the cations are one of quaternary ammonium, imidazole and pyridine cations containing long-chain alkyl, the anions are heteropolyacid anions, the long-chain alkyl enables the catalyst to have good oil solubility, the catalyst can be efficiently dispersed in the waste grease, heteropolyacid provides active sites, and the catalyst can be used for treating the waste grease. Nano-scale active particles are formed after in-situ vulcanization, and the catalytic hydrogenation effect is achieved. The invention also provides a preparation method of the oil-soluble heteropolyacid ionic liquid catalyst, the catalyst can be prepared from tertiary amine and halogenated hydrocarbon through three-step reaction of alkylation, anion exchange and acid-base neutralization, the preparation process is simple, a highly toxic reagent is avoided, and the cost is low. The catalyst provided by the invention can be used for catalytic hydroisomerization of various waste oils and fats, has the characteristics of high conversion rate, low coking rate and high product calorific value, and has relatively high industrial application potential.

The utility model discloses waste oil regeneration mixing circulation treatment equipment, which particularly relates to the technical field of waste oil regeneration and comprises a treatment barrel, a feeding pipe is fixed on the treatment barrel, a waste pipe communicated with the inside of the treatment barrel is further arranged on the lower portion of the outer surface of the treatment barrel, and a discharging block is further fixed on the lower portion of the inner surface of the treatment barrel. A conical groove is formed in the upper end of the discharging block, and an oil discharging assembly is further arranged in the inner cavity of the treatment barrel. According to the waste oil regeneration mixing circulation treatment equipment disclosed by the utility model, the design of the oil discharge assembly is adopted, and an air pump and a sealing ring are matched with each other, so that deposited impurities can enter a conical groove through a gap between the side wall of a hollow pipe and the inner wall of a treatment barrel when the equipment is used; and then impurities are discharged through a waste material pipe, so that when the device is used, waste oil needing to be treated can be injected into the treatment barrel, the impurities and treated oil are discharged to the outside, and the working efficiency of the device during use is improved.

The invention relates to the field of biodiesel catalytic materials, and particularly discloses a catalyst for kitchen waste oil, a preparation method and biodiesel. The catalyst for the kitchen waste oil is prepared from a Fe3O4-SiO2-Pr < 3 + > nano-particle carrier and a lipase solution, the catalyst is prepared from a Pr (NO3) 3 solution doped with Pr < 3 + > being 0.88-0.92 wt%, the lipase solution is a pseudomonas lipase solution with the concentration being 22-28 mg / mL, and the pH is 7.0; the preparation method comprises the following steps: preparing Fe3O4 nanospheres, coating the surfaces of the Fe3O4 nanospheres with SiO2 layers, dipping the Fe3O4 nanospheres in a Pr (NO3) 3 solution, carrying out calcination treatment to obtain a Fe3O4-SiO2-Pr < 3 + > nanoparticle carrier, placing the carrier in a lipase solution, carrying out adsorption fixation, and separating out the carrier to obtain the catalyst. The catalyst is used for processing biodiesel and has the advantages of being easy to recycle, high in loading capacity, low in activity loss and good in stability.

The invention relates to the technical field of biological aviation kerosene, and discloses a process for preparing biological aviation kerosene from waste grease. The method comprises the following steps: introducing waste oil into a hydrofining reactor, introducing hydrogen, carrying out a hydrodeoxygenation reaction under the catalysis of a hydrogenation catalyst, carrying out a reaction on the obtained hydrodeoxygenated oil in an isomerization pour point depressing reactor, and finally carrying out isomerization hot high-pressure separation treatment, isomerization cold high-pressure separation treatment and rectification tower segmentation to obtain the biological aviation kerosene. The specific surface area of a carbon matrix of the hydrogenation catalyst is large, the void structure is rich, a large number of Ni-Mo-P active catalytic centers can be exposed, precious metals such as platinum and ruthenium do not need to be added, the hydrodeoxygenation reaction efficiency of waste oil and fat is remarkably improved, the mass fraction of branched paraffin and cycloparaffin in biological aviation fuel is high, and the combustion performance is better.

The invention relates to the field of oil-water separators, and discloses an oil-containing waste liquid treatment device for aramid fiber production, the oil-containing waste liquid treatment device comprises a mounting box, a waste oil pool is arranged at the lower end of the mounting box, a steel belt is arranged on one side of the mounting box, and an oil removal assembly is arranged in front of the waste oil pool; the oil removal assembly mainly comprises first scrapers, sliding rods, a rotating roller, a water supply pipe and a nozzle, the first scrapers are arranged on the two sides of the steel belt, and the sliding rods are arranged on the two sides of the lower end of each first scraper. The cleaning effect can be enhanced, waste oil is prevented from flowing back to a waste liquid pool, oil blocks are prevented from entering a driving roller to interfere with running of a steel belt, fine oil blocks can be reduced, and the waste oil falling probability is further reduced; in addition, clear water is dripped on the surface of the steel strip to form thin ice, so that the steel strip can be quickly cooled by utilizing large specific heat capacity of water, and can be kept warm and slow down in temperature rise when the steel strip moves downwards.

Provided herein are processes for recycling hydrocarbons in a used high performance lubricant such as wind turbine gear oil. In the present process and methodologies, the used high performance lubricant is not mixed with another type of used oil. The used high performance oil is contacted with a solvent in an extraction process. Contaminates are extracted and circular hydrocarbons are formed. Solvent can be recovered, and the circular hydrocarbon combined with a high performance base stock for use as a high performance lubricant in a mechanical system.

The utility model relates to an electromagnetic heating waste oil deslagging system, and belongs to the field of waste oil regeneration, the electromagnetic heating waste oil deslagging system comprises a reaction kettle, a circulating pump, an electric heater, an electric heating groove, a slag oil tank, a regulating valve, a switch valve and an extraction piece, the circulating pump is communicated with the reaction kettle, and the electric heater is communicated with the circulating pump and is communicated with the reaction kettle; the electric heating tank is arranged on the circulating pump in a communicating mode, the residue oil tank is arranged on the electric heating tank in a communicating mode, the adjusting valve is arranged at the communicating position of the circulating pump and the electric heating tank, the switch valve is arranged at the communicating position of the electric heating tank and the residue oil tank, and the extraction part is arranged on the residue oil tank and used for discharging residue oil in the electric heating tank into the residue oil tank. The waste oil regeneration device has the advantages that the probability of coking and blocking of waste oil is reduced, time consumed for equipment maintenance is shortened, the heating temperature of the waste oil is reasonably distributed through the electric heater and the electric heating groove, the heating efficiency is improved, energy consumption is reduced, and the problems of low production efficiency and high recovery cost in the waste oil regeneration process are effectively solved.

A preparation method for iron phosphate with a core-shell structure and the use thereof. The method comprises: mixing a surfactant, an organic iron source, an organic phosphorus source, a waste oil coagulant and liquid oil at 60-90°C, adding the obtained mixed liquid to water to form an emulsion, separately adding a trivalent iron salt solution and a phosphate solution to the emulsion for a reaction, naturally cooling and filtering the reaction solution, and subjecting the obtained wet solid material to microwave heating in an oxygen atmosphere, so as to obtain iron phosphate with a core-shell structure.

The invention relates to the technical field of waste oil heating, in particular to an electromagnetic heating system of a waste oil conveying pipeline, and aims to solve the problem that in the prior art, the heating temperature of waste oil is not uniform, and coking is easily generated in the pipeline. Comprising an oil reservoir; the oil delivery pipe is communicated with the oil storage pool, and the bottom of the oil delivery pipe is communicated with an oil discharge pipe; a heating coil; the decoking mechanism is coaxially arranged in the oil conveying pipe, and the end, away from the oil storage pool, of the decoking mechanism is connected with a driving mechanism; wherein the heating coil is used for uniformly heating the oil conveying pipe, and the driving mechanism is used for driving the decoking mechanism to reciprocate along the axis direction of the oil conveying pipe or driving the decoking mechanism to rotate along the circumferential direction of the oil conveying pipe. The heating coil wound on the peripheral wall of the oil conveying pipe can uniformly heat oil in the oil conveying pipe, coking caused by local overheating is avoided, meanwhile, the decoking mechanism can continuously enable the oil in the oil conveying pipe to flow, and coking caused by the fact that the oil stays in a certain area for a long time is avoided.

The utility model belongs to the technical field of distillation devices, and particularly relates to a waste oil distillation device which comprises a distillation still, supporting legs, a baffle, a heater and a feeding port, the distillation device is arranged in the distillation still and comprises a cleaning unit, a distillation unit and a circulating unit, and the cleaning unit is arranged in the distillation still. According to the waste oil distillation device, by arranging the cleaning unit and pushing a handle up and down, a connecting rod drives a scraping ring to move up and down along the interior of a distillation still, coke on the inner wall of the distillation still is scraped, when the upper surface of a baffle needs to be cleaned, the handle is pushed downwards to make the bottom of the scraping ring make contact with the top of the baffle, and then a rotating rod is rotated to drive the scraping ring to rotate; and finally, the waste material pipe is opened, so that waste materials are discharged, cleaning is convenient, and the problems that in the background technology, in the waste oil distillation process, the inner wall of the distillation still can generate coking, and cleaning is inconvenient when the distillation still is cleaned are solved.

This invention relates to a bitumen pavement system enhanced for durability through the innovative use of carbon black and waste oil microcapsules. Traditional bitumen pavements often suffer from degradation due to environmental factors and heavy traffic loads, leading to increased maintenance costs and reduced lifespan. This advanced pavement system incorporates carbon black to improve resistance to cracking and wear, while waste oil microcapsules are integrated to provide self- healing properties. As a result, the pavement can recover from minor damages autonomously, significantly extending its service life. This invention not only enhances the performance of bitumen pavements but also contributes to sustainability by utilizing waste materials, making it an effective solution for modern road construction and maintenance. The system is designed for easy application, allowing for seamless integration into existing road construction practices, thus promoting durable and environmentally friendly infrastructure.

The utility model discloses a gear oil purification system, relates to the technical field of gear oil purification and regeneration, and aims to solve the problems that high-viscosity gear waste oil cannot be treated and is difficult to purify in the conventional purification technology. Comprising a waste oil storage tank, a high-viscosity gear oil pump, an electromagnetic heater, an activated carbon adsorption filtering device, a composite grid filtering device, a supplementary filtering device and a precise impurity removal filtering device, and the high-viscosity gear oil pump is arranged on a pipeline between the waste oil storage tank and the electromagnetic heater. The purification and regeneration device can realize purification and regeneration of L-CKD 460 # heavy-load gear waste oil and higher-viscosity gear waste oil, is high in filtering precision, good in purification and regeneration effect and high in purification and filtering efficiency, and solves the technical problems that the high-viscosity gear waste oil cannot be treated and is difficult to purify in the existing purification technology.

The application provides a continuous hydrogenation-isomerization method capable of meeting the treatment requirements of biological oils, especially waste oils, using a homogeneous hydrogenation process with strong adaptability to raw materials as a raw material pretreatment process, and matching a high-activity nanometer transition metal sulfide catalyst. On this basis, a catalytic distillation process is used for selective cracking of long-chain alkanes to improve the yield of medium and long-chain alkanes; an ultramicro flow hydrogen gas mixer and a reduced non-noble metal hydrogenation-isomerization catalyst are used to reduce the hydrogen / oil ratio and the energy consumption of the circulating hydrogen system, and to reduce the production cost of the catalyst, so as to finally realize efficient and low-carbon conversion of waste oils, and low-cost and high-selectivity preparation of biological aviation kerosene.

The invention relates to the technical field of industrial automation control, and discloses a crusher assembly line automatic cleaning control system which comprises a pretreatment module, a crushing control module, a dry cleaning control module, a logistics transmission module, a sensor monitoring module, a central control module and the like. The pretreatment module automatically discharges oil and transfers waste engine oil; the crushing control module adjusts crushing parameters based on the pressure sensor and generates particle size distribution data; the dry cleaning control module dynamically adjusts a chemical agent and airflow according to the working state; the logistics transmission module optimizes a material transfer path and priority; the sensor monitoring module acquires multi-dimensional data in real time and gives an alarm; the central control module coordinates the time sequence of each module and allocates resources. In addition, a waste recovery and data storage module is further arranged. According to the system, automation and intelligence of the cleaning process of the crusher assembly line are achieved, the cleaning efficiency and quality are improved, stable operation of the system is guaranteed, and the system has the advantages of resource recycling, data safety management and the like.