1971 results about "Waste oil" patented technology

The invention discloses a method for preparing biological aviation kerosene by hydrogenation of waste grease, which comprises the following steps: mixing pretreated waste grease and coal tar to form mixed raw oil, reacting under the continuous action of a catalyst I and a catalyst II to obtain generated oil, and introducing the generated oil into a high-pressure separator for separation to obtain the biological aviation kerosene. And carrying out high-pressure steam stripping on the separated product, passing the stripped product oil through a hydroisomerization reaction unit, and then carrying out normal-pressure fractionation to obtain the biological aviation kerosene. According to the preparation method, firstly, raw materials are improved, pretreated waste grease is adopted, the reaction efficiency can be improved through the pretreated waste grease, in the process that H2S iO3 is adopted for modifying Cu / gamma-Al2O3, and H2S iO3 auxiliaries and active components are introduced, high-temperature roasting can cause damage to a lamellar structure on the surface of a gamma-A2O3 carrier, and in the process, high-temperature roasting can cause damage to the surface of the gamma-A2O3 carrier; the adjacent pore structures of the carrier material are combined to form a larger pore diameter, and part of the pore structures of the catalyst can be filled, so that the conversion efficiency is increased.

The invention discloses industrial-grade mixed oil produced by utilizing kitchen waste oil and a preparation method of the industrial-grade mixed oil, and belongs to the technical field of recycling of the kitchen waste oil. The invention relates to industrial-grade mixed oil produced by using kitchen waste oil and a preparation method thereof, and the preparation method comprises the following steps: firstly collecting kitchen waste containing the waste oil, and storing the kitchen waste in a container through special equipment; carrying out screen solid-liquid separation, cleaning grease on the surface of the solid waste, and then carrying out precipitation separation; then carrying out centrifugal separation, chemical cleaning, water washing, acid treatment, dehydration, degumming and metal ion removal on the separated grease and oil-containing liquid; carrying out ultrasonic-assisted multistage ester exchange after enzymolysis optimization, carrying out membrane separation on glycerol and fatty acid methyl ester, and carrying out reduced pressure distillation to obtain a high-purity fraction; carrying out adsorption refining, plasma treatment and supercritical fluid extraction; finally, nano particles are added and blended with additives, efficient recycling of the kitchen waste oil is achieved, and then high-purity industrial-grade mixed oil is prepared.

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.

The invention provides a dehydrogenation catalyst for preparing an aza-aromatic ring as well as a preparation method and application of the dehydrogenation catalyst, and belongs to the technical field of catalyst preparation. The dehydrogenation catalyst comprises a carrier with specific physical parameters, a first active metal component Pd, at least one of a second active metal component Re, Sn or Ir, and a P-containing active auxiliary agent. The dehydrogenation catalyst provided by the invention can be used for a dehydrogenation reaction of a nitrogen-containing heterocyclic compound as a raw material, the aza-aromatic ring can be directly obtained, the conversion rate of the raw material is 99% or above, the selectivity of the aza-aromatic ring product is 99% or above, the yield is 98-99%, and the service life of the dehydrogenation catalyst can reach 5500 h or above. The dehydrogenation catalyst can be used for preparing various nitrogen heteroaromatic rings with different carbon atom numbers, and is particularly used for preparing the nitrogen heteroaromatic rings by dehydrogenation of nitrogen-containing heterocyclic ring byproducts in the hexamethylenediamine production process, waste oil raw materials can be turned into wealth, and the waste oil raw materials are converted into fine chemicals with high additional value.

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 invention relates to the technical field of recovery processes of waste oil refining catalysts, in particular to a low-energy-consumption method for comprehensively recovering a waste hydrogenation catalyst. The method comprises the following steps: firstly, carrying out vacuum pyrolysis on the waste hydrogenation catalyst to obtain heavy oil and a deoiled waste catalyst; then the deoiled waste catalyst is smashed and then subjected to oxidizing roasting to remove sulfur and carbon in the waste catalyst, and roasted clinker is obtained; carrying out acid leaching and solid-liquid separation on the roasted clinker to obtain a leaching solution and leaching residues; wherein valuable metal ions in the leachate are respectively recovered by using a solvent extraction method; and after leaching residues are subjected to secondary leaching through sodium hydroxide, aluminum in the leaching residues is recycled, and a sodium metaaluminate solution is obtained. According to the technical scheme, selective recovery of molybdenum, vanadium, nickel and aluminum in the waste hydrogenation catalyst can be achieved, the recovery rate is high, energy consumption is low, pollution of the waste hydrogenation catalyst to the environment can be relieved, and sustainable utilization of non-ferrous metal resources can be achieved.

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 utility model discloses an iron material magnetic separation device and a waste oil barrel processing assembly line, iron material is conveyed from right to left, the iron material magnetic separation device comprises at least two magnetic separation rollers which are sequentially arranged from right to left and from top to bottom, each magnetic separation roller comprises a core shaft, a magnetic block and a cylinder body, the magnetic block is fixedly installed on the core shaft, and a magnetic separation motor drives the cylinder body to roll around the core shaft. The cylinder is provided with a slag separation area, one magnetic pole end of the magnetic block corresponds to the inner side of the slag separation area, the slag separation area dynamically and correspondingly is an area which starts from the uppermost end of the cylinder, crosses the rightmost end of the cylinder and continues to extend downwards, and an iron material bearing point of the slag separation area deviates from the upper edge and the lower edge of the slag separation area. Compared with the prior art, iron materials are sprayed to the slag separation area in a landing mode, the slag separation area deviates from the high points of the magnetic separation rollers, the independent iron materials and slag can be directly separated according to whether the iron materials and the slag are subjected to magnetic force or not conveniently, the iron materials without slag are turned and shaken conveniently, the slag is shaken off, the slag removal quality of the magnetic separation rollers is good, and the slag removal efficiency is improved through two-time roller magnetic separation. And the slag content of the iron material is effectively reduced.

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 discloses a multiphase extraction and tail gas and wastewater treatment integrated device and a control method thereof. Comprising at least one set of small multiphase extraction unit connected with an extraction well, an agent box storing a solubilizing agent and an oxidizing agent, a resin adsorption tower, an oil-water separator, a photocatalytic reactor, an oil storage tank, a heating system used for heating the agent box and the oil-water separator and providing high-temperature steam for the resin adsorption tower, and a controller, wherein the medicament box is respectively connected with the extraction well and the photocatalytic reactor, the multiphase extraction unit comprises a gas-liquid separator, a water ring vacuum pump and a jet pump, the extracted gas-liquid mixture is subjected to gas-liquid separation through the gas-liquid separator, waste gas is conveyed to the resin adsorption tower through the water ring vacuum pump, and the resin adsorption tower is used for adsorbing the waste gas. Waste liquid and the extracted oil-water mixture are conveyed to the oil-water separator through the jet pump, waste water is conveyed to the photocatalytic reactor, and waste oil is conveyed to the oil storage tank. According to the invention, miniaturization is realized, and meanwhile, the stability and high efficiency of removal efficiency are effectively guaranteed.

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 invention belongs to the technical field of power generation and energy storage systems, and discloses a gravity-compressed gas energy storage system and method depending on a waste oil and gas well. The system comprises a compressed gas energy storage device, a waste oil and gas well and a gravity energy storage device which are sequentially connected. The compressed gas energy storage device comprises a compression device and a high-pressure container; the high-pressure container is connected with a waste oil-gas well; a piston is installed in a shaft of the waste oil and gas well, gas is arranged above the piston, and water is arranged below the piston. The bottom of the waste oil-gas well is connected with a water injection pipe and a water return pipe; the water injection pipe and the water return pipe are connected with the reversible pump turbine; the reversible pump turbine is connected with the ground reservoir through a water pipe and is in driving connection with the generator set. The gravity energy storage device and the compressed air energy storage device are built in the underground space of a large number of waste oil and gas wells, resources are fully saved and integrated, the energy utilization rate is increased, and operation is easy, reliable and practical.

The invention provides a shearing, cavitation and separation integrated device for desorption of waste oil-based drilling mud oil sludge, which comprises a static cylinder in which a rotating cylinder and a rerotator are arranged at an interval; the drum is driven by a motor to rotate; a dispersion cavity, a cavitation cavity and a separation cavity which are communicated with one another are sequentially formed in the static cylinder; a radially arranged scattering rod is arranged at the part, located in the dispersing cavity, of the outer wall of the rotary drum, and the slurry fluid is scattered through rotation of the scattering rod; static teeth mounted on the inner wall of the static cylinder and movable teeth mounted on the outer wall of the rotating cylinder are arranged in the cavitation cavity, the movable teeth and the static teeth are in clearance fit, and the movable teeth rotate to shear fluid to generate a cavitation effect; the separation cavity is used for separating fluid, so that heavy-phase sludge flows out from an underflow outlet of the static cylinder, and light-phase oil water flows out from an overflow outlet of the static cylinder; the method does not depend on chemical separation agents, environmental pollution is reduced, resource recovery is achieved, and the treatment cost is reduced.

The invention relates to the technical field of mixing, and specifically discloses a mixing device for sustainable aviation fuel, comprising an axle rotatably arranged in a container, wherein a plurality of mixing components are arranged in sequence from top to bottom in the container, wherein the mixing component comprises an inner ring, an outer ring, and a mixing piece fixedly arranged between the outer side of the inner ring and the inner side of the outer ring, wherein a material cavity for loading a catalyst is arranged in the mixing piece, two shielding plates are slidably arranged on the mixing piece, a rack matched with the shielding plates on the mixing piece is slidably arranged on the inner ring, a driving rod is coaxially slidably arranged on the axle, and a driving assembly corresponding to the mixing assembly one by one is arranged on the driving rod, when the driving rod rotates and the driving rod moves upward at equal intervals intermittently, a plurality of inner rings can rotate in sequence from bottom to top, a plurality of annular cavities can be connected with a filling ring in sequence, and then a plurality of inner rings can rotate together and the filling ring is blocked by the driving rod, and the invention is conducive to uniformly mixing waste grease and glycerin, and improving the mixing efficiency with the catalyst.

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 invention discloses high-temperature-stable durable composite modified asphalt and a preparation method thereof. The preparation method comprises the following steps: (1) adding rare earth metal sulfide and rubber powder into a mixture of waste oil and diglycolamine, and uniformly stirring; (2) sequentially adding the rubber powder and phosphite in the step (1) into the preheated matrix asphalt, and uniformly stirring; (3) adding a modifier into the asphalt in the step (2), and shearing at a high speed; and (4) uniformly mixing calcium-containing powder, boric acid powder, a reactive auxiliary agent and an initiator, adding the mixture into the asphalt obtained in the step (3), and stirring to obtain the high-temperature stable durable composite modified asphalt. The prepared composite modified asphalt is high in storage stability, the problem of separation of asphalt and rubber powder in the construction process is thoroughly solved, and meanwhile, the durability of a pavement is greatly improved.

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 invention provides a kitchen waste oil management system and method based on an AI technology. The system comprises an oil-water separator, an intelligent pressure sensing base, a wireless communication module, an AI processing module, a terminal display APP and a cloud database. Through the components, the system can monitor the waste oil storage amount in real time, automatically track the waste oil direction and record the equipment maintenance condition. And the AI processing module dynamically adjusts the maintenance period by analyzing the sensing data, and generates a maintenance notification. The system realizes high efficiency and automation of waste oil management, helps waste oil collection operators and providers to effectively master logistics and information flow, and thus helps the waste oil collection operators to efficiently complete management tasks.

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 utility model relates to the technical field of speed reducers, and discloses a speed reducer upgrading and oil replacing device which comprises a bottom plate, a fixing plate is fixedly installed on the front side of the upper surface of the bottom plate, and clamping blocks are fixedly installed on the front face and the top of the fixing plate. And the discharging assisting mechanism is arranged on the right side of the top of the bottom plate. By arranging the air compressor, the pressure gauge, the pressure reducing valve and the spray head, before the speed reducer is oiled, the spray head is firstly inserted into the oil injection hole of the speed reducer, then the air compressor is started, and compressed air generated by the air compressor is injected into the speed reducer from the spray head through the ball valve and the connecting pipe; therefore, the interior of the speed reducer can be pressurized, then the discharging speed of waste oil in the speed reducer can be increased, an operator can control the air compressor to be started and stopped by observing the reading of the pressure gauge, and therefore the situation that the pressure intensity in the speed reducer is too large is avoided.