2616 results about "Mixed materials" patented technology

The invention relates to the technical field of screening, and discloses an iron ore powder and antifreezing agent mixed screening device which comprises a rack, and the surface where the top of the rack is located is inclined; a first bearing seat is mounted on the rack, a roller with a rubber wheel surface is rotationally connected to the first bearing seat, a universal coupling is connected to the shaft end of the roller, a shaft rod is connected to the other end of the universal coupling, a speed reducer arranged on a second supporting seat is connected to the free end of the shaft rod, and the second supporting seat is connected with the rack; the speed reducer is driven by a first motor arranged on the rack, and the first motor and the speed reducer transmit power through belt transmission; a drum screen assembly used for improving the mixing uniformity of the iron ore powder and the anti-freezing agent is connected to the rolling wheel in a rolling mode, and mixed materials are discharged from screen holes of the drum screen assembly. Mixing, screening, conveying and cleaning are integrated, mixing uniformity is high, screening efficiency is excellent, operation and maintenance are convenient and fast, and the requirement for mixing and screening of iron ore powder and an anti-freezing agent is met.

The invention discloses ceramic fluorinated silicone rubber and a preparation method thereof. The ceramizable fluorosilicone rubber comprises the following raw materials in parts by weight: 100 parts of fluorosilicone raw rubber, 10-30 parts of fumed silica, 4-8 parts of a structure control agent, 10-20 parts of an organic-inorganic compound fire-resistant filler, 4-10 parts of reinforced fibers, 20-30 parts of a carbon-based ceramic additive and 1-2 parts of a vulcanizing agent. The preparation method comprises the following steps: S1, adding the fluorosilicone raw rubber into a kneading machine, and then adding the fumed silica and the structure control agent to start mixing; s2, adding an organic-inorganic compound refractory filler, reinforced fibers and a carbon-based ceramic additive into the mixed material obtained after mixing in the step S1, and continuously mixing; s3, carrying out vacuum treatment on the material mixed in the S2, cooling the material to room temperature, adding a vulcanizing agent into a double-roller open mill, and uniformly mixing; and S4, performing tabletting vulcanization on the material mixed in the step S3 on a plate vulcanizing machine, and then performing secondary vulcanization in a drying oven to obtain the ceramization fluorinated silicone rubber.

The invention relates to the technical field of waste management, in particular to a building solid waste intelligent disposal and reutilization system and method based on the Internet of Things, and the system comprises a solid waste classification optimization module, a solid waste disposal adaptation module, a recycling path planning module, an environmental impact evaluation module and a scheduling optimization module. According to the method, the sorting priority is dynamically adjusted by recognizing the particle size, density and energy consumption change of the solid waste, the recognition precision and separation efficiency of the mixed materials are improved, the path is compared and adjusted in combination with the equipment capacity, the solid waste attributes are matched, resource loss and mistaken sorting are avoided, the trend and concentration degree are extracted in the recycling link, and the path matching degree is improved; according to the method, the proportion of unavailable components is reduced, environmental load and energy consumption change are fused in the processing process, a high-emission section is adjusted, environmental impact is relieved, jump frequency is analyzed in combination with task switching, the adaptability and scheduling continuity of the system to change interference are enhanced, and resource utilization continuity, response sensitivity and environmental adaptation level are integrally improved.

The invention discloses a deep learning and automatic control chemical reactor and a resource recovery method, and relates to the technical field of hydrometallurgy, and the deep learning and automatic control chemical reactor comprises a chemical reactor, a motor, a heating device, a monitoring device, a data center and a PLC control system. Based on a PLC control system, a Transform-LSTM time sequence prediction model is integrated, so that real-time monitoring of parameters such as mixed liquid temperature, reaction chamber pressure, mixed liquid viscosity, conductivity and the like in a wet leaching reaction process can be realized; and the heating power of the heating device, the rotating speed of the motor, the raw material adding amount of the feeding port, the mixed material discharging time of the discharging port and the air displacement of the air exhaust port can be automatically and accurately controlled. The problems that stirring efficiency is low, parameter regulation and control are lagged, and manual experience is relied on are solved, through a predictive control strategy, the real-time monitoring and dynamic regulation level is remarkably improved, the wet leaching process is optimized, energy consumption is reduced, the high-grade metal leaching efficiency is improved, and the method is suitable for various wet metallurgy processes.

The invention relates to the technical field of guanidine nitrate preparation, in particular to a method for preparing guanidine nitrate by a continuous dynamic tubular reaction process, which comprises the following steps: uniformly mixing dicyandiamide, target ammonium nitrate and target ammonium carbonate according to a mass ratio of 1: (1-3): (1-0.5); conveying the uniformly mixed material to a feeding section in a dynamic tubular reactor through a first conveying screw rod for mixing treatment, wherein the dynamic tubular reactor further comprises a heating section, a reaction section and a cooling section; sequentially conveying the target mixed material to a heating section for heating melting treatment, a reaction section for synthesis reaction treatment and a cooling section for cooling forming treatment through a second conveying screw rod to obtain an initial product; conveying the initial product into a cooling and crushing device for cooling and slicing to obtain a target guanidine nitrate product. According to the method disclosed by the invention, the mass and heat transfer efficiency can be improved, the online quantity and liquid holdup of the material are reduced, meanwhile, the raw material ratio and the reaction path are optimized, and the safety and the product purity are improved.

The invention discloses an anthracite-based fast-charging carbon negative electrode material and a preparation method thereof.The preparation method comprises the steps that firstly, component separation is conducted on anthracite, meanwhile, the dual effects of reducing ash content and separating maceral components are achieved, then grading treatment is conducted by means of the density and hardness difference of vitrinite and inertinite, small-particle-size vitrinite is further sufficiently enriched, and the carbon negative electrode material is obtained. The content of vitrinite in the auxiliary material B is larger than or equal to 96 wt%, and then the auxiliary material B is subjected to hot air oxidation treatment to be subjected to a cross-linking reaction, so that the auxiliary material B is promoted to form a hard-carbon-like structure in the high-temperature carbonization process; meanwhile, collecting a mixed material containing 50-70wt% of vitrinite and 30-40wt% of inertinite as a main material A, and graphitizing the main material A; the graphitized main material A, the oxidized auxiliary material B and a binder are heated, fused and carbonized to form a graphite / hard-like carbon hybrid structure, and the anthracite-based fast-charging carbon negative electrode material with excellent electrochemical performance is obtained.

The invention provides a method and equipment for producing Li2CO3 based on coordinated roasting of lepidolite and spodumene. The method for producing Li2CO3 based on coordinated roasting of lepidolite and spodumene comprises the steps that S1, ore pretreatment is conducted, specifically, lepidolite and spodumene with the particle size smaller than 5 mm are evenly mixed according to the mass ratio of 1: (1-3), and the mixed ore is finely ground till the particle size is smaller than 75 microns; s2, additive mixing, wherein a composite additive is added into the mixed ore obtained after fine grinding and evenly mixed with the ore, and the composite additive is composed of fluoride, sulfate and a fluxing agent; and S3, coordinated roasting, wherein the mixed materials are fed into a rotary kiln to be roasted. According to the method for producing Li2CO3 based on coordinated roasting of the lepidolite and the spodumene, the lepidolite and the spodumene are roasted in a coordinated mode, the structural and chemical property differences of the lepidolite and the spodumene are utilized, advantage complementation is achieved, the overall extraction rate of lithium is increased, compared with a single lithium extraction technology, the lithium recovery rate can be increased by 10%-20%, and the waste residue generation amount is reduced.

The preparation method comprises the following steps: 1, dispersing an iron source, a phosphorus source, a lithium source, a carbon source, a dispersing agent, an element doping agent and a solvent in proportion, dividing the dispersed slurry into three parts of slurry A, B and C in proportion, respectively grinding the three parts of slurry, and respectively carrying out spray drying; 2, pre-sintering the three parts of spray materials at different temperatures, and crushing the pre-sintered materials; and step 3, mixing the crushed pre-sintered materials so as to realize multi-stage grain composition. Carrying out dry mixing on a carbon source and the pre-crushed material according to a certain mass ratio; and 4, carrying out secondary sintering, crushing and demagnetizing on the mixed material to obtain the multi-stage grading high-compaction lithium iron phosphate positive electrode material. According to the invention, primary sintering material grain grading and secondary carbon coating and sintering strengthening are realized through graded particle size design, and the compaction density and the specific capacity of the lithium iron phosphate positive electrode material are synergistically improved.

The invention belongs to the field of waste artificial graphite regeneration, and particularly relates to a waste artificial graphite regeneration method, a regenerated material and application thereof, the regeneration method comprises the following steps: carrying out normal pressure liquid phase modification on waste artificial graphite in an organic acid solution in advance, and then putting the modified waste artificial graphite in an inorganic acid solution for positive pressure liquid phase modification to prepare a modified material; mixing the modified material with a Mn source, a metal N source, a first carbon source and a binder to obtain a mixture, then performing heat treatment on the mixture in a hydrogen-containing atmosphere, and then performing negative-pressure annealing treatment to obtain a heat-treated material; the metal N source comprises a compound of at least one of iron, cobalt and nickel; and mixing the heat-treated material with lithium salt and a second carbon source, and carrying out roasting treatment to obtain the graphite regenerated material. The regeneration method disclosed by the invention is particularly suitable for repairing the artificial graphite waste which is difficult to treat, so that the artificial graphite waste can be repaired to obtain a material with excellent capacity, long circulation and particularly low-temperature stability.

The invention provides a plant fiber asphalt mixed material as well as a preparation method and application thereof, and belongs to the technical field of composite asphalt. Performance optimization is achieved through a specific fiber-reinforced asphalt mixture scheme, the asphalt mixture comprises pretreated natural plant fibers, asphalt, coarse materials, fine materials and mineral powder, after mixing, the high-temperature stability, the water damage performance and the fatigue performance of the asphalt can be remarkably improved, the balance of cost and performance is achieved, and the service life of the asphalt is prolonged. And the defect that the cost of the conventional high-performance pavement material is often too high is overcome. The problems of high-temperature stability, water damage performance, fatigue performance, cost and performance balance and the like of a traditional asphalt pavement material are effectively solved, and the comprehensive performance of the pavement material is remarkably improved.

The invention relates to the technical field of sintered ore production, in particular to a multi-process cooperative control method and system of a sintering process. The sintering production level is comprehensively improved. The control method comprises the following steps: uniformly-mixed material replacement control logic: establishing a feed-forward compensation model taking a material ferrous component and a burn-out rate as variables, and adjusting the ratio of fuel to a flux; solid waste circulation matching control logic: establishing an admission and substitution mechanism of gravitational dedusting ash and environmental dedusting ash; hydrothermal cooperative control logic: establishing a coupling regulation mechanism of temperature and moisture of the mixture; the ignition-sintering end point cooperative control logic is used for adjusting ignition parameters and the main fuel dosage in a linkage mode; according to return mine balance control logic, the sintering process is reversely diagnosed and adjusted through the physical state and flow feedback of return mines; and fuel and flux replacement control logic: executing accurate replacement calculation taking carbon balance or alkalinity conservation as a basic principle, and introducing a particle size or activity degree correction coefficient for optimization. The method is realized by a multi-process cooperative control system.

The invention relates to the technical field of intelligent control, in particular to a breeding feed mixing control method and mixing equipment, and solves the technical problem of poor mixing quality caused by physical property difference of raw materials in the prior art. The method comprises the following steps: monitoring component composition and particle physical form of a mixed material in a mixing process and stirring parameters of mixing equipment; the mixing process comprises the following steps: stirring the dry materials in the mixing equipment, and adding liquid by spraying; the components are obtained through near infrared spectroscopic analysis; the physical form of the particulate matter is obtained through image analysis; analyzing the influence of the stirring parameters on the mixing quality based on the component composition, and determining a correction coefficient of the operation parameters of the mixing equipment in combination with the physical form of the particles; and regulating and controlling the current operation parameter of the mixing equipment according to the correction coefficient, so that the mixing equipment operates according to the regulated and controlled target operation parameter.

The invention discloses a preparation method of a nano HZSM-5 molecular sieve, and belongs to the technical field of nano molecular sieve preparation, the preparation method comprises the following steps: 1, adding a silicon source, an aluminum source and a template agent into a supercritical crystallization reaction kettle, heating, stirring, and carrying out a melting reaction on the raw materials to obtain a seed crystal mixed material; introducing absolute ethyl alcohol into the seed crystal mixed material obtained by the melting reaction, heating, stirring, and carrying out crystallization reaction to obtain a reaction product; and cooling, washing, drying and roasting the obtained reaction product to obtain the nano HZSM-5 molecular sieve. According to the present invention, the melting reaction and the supercritical ethanol crystallization reaction technology are introduced into the preparation of the nanometer HZSM-5 molecular sieve for the first time, and the prepared nanometer HZSM-5 molecular sieve has advantages of small grain size, uniform distribution, large specific surface area and high yield.

The invention belongs to the technical field of concrete, and particularly relates to dynamic carbon injection recycled coarse aggregate concrete as well as a preparation method and application thereof. The preparation method of the concrete comprises the following steps: (1) adding the cement, the mineral powder, the recycled coarse aggregate, the fine aggregate, the fly ash, the carbon sequestration agent, the retarder and the water reducing agent into water, and uniformly stirring to obtain a mixed material; (2) injecting carbon dioxide into the mixed material to obtain carbon-mixed concrete; and (3) curing the carbon-mixed concrete to obtain the carbon-mixed concrete. The invention provides a method for preparing dynamic carbon injection recycled coarse aggregate concrete by taking a carbon sequestration agent, a retarder, cement, mineral powder, recycled coarse aggregate, fine aggregate, fly ash and a water reducing agent as raw materials. The method is simple in process and easy for large-scale production. The concrete prepared by adopting the method is relatively high in carbon sequestration rate, excellent in mechanical property and capable of effectively avoiding rapid hydration.

The invention provides a preparation method of a multi-source coal-based solid waste filling material, and belongs to the technical field of solid waste reutilization, and the preparation method comprises the following steps: uniformly mixing cement, fly ash, furnace bottom slag, desulfurized gypsum, coal gangue, gasified slag and a water reducing agent to obtain a mixed material; and adding fluorine-containing mine water into the mixed material, stirring and mixing to obtain the cemented multi-source coal-based solid waste filling material with predetermined fluidity and bleeding rate. The invention further provides application of the multi-source coal-based solid waste filling material. According to the preparation method and application of the multi-source coal-based solid waste filling material, the coal-based solid waste can be comprehensively recycled and is environmentally friendly, and the prepared multi-source coal-based solid waste filling material can effectively control and treat fluorine ions in mine water.

The invention provides a method for improving the manganese recovery rate of a silicon-manganese alloy, which comprises the following steps: sequentially filling smelting raw materials into a closed electric furnace for smelting to obtain an alloy melt; transferring the alloy melt into a steel ladle, and blowing magnesium powder for desulfurization; the desulfurized alloy melt is subjected to slagging-off, and manganese-silicon alloy molten iron is obtained; the manganese-silicon alloy molten iron is poured into a mold for ingot casting, and a manganese-silicon alloy finished product is obtained after cooling; the smelting raw materials are sequentially filled with a backing material, a mixture and a surface material from bottom to top in the closed electric furnace; the surface material comprises aluminum powder and calcium carbide which are mixed according to a certain proportion, in the method, the surface material comprises the aluminum powder and the calcium carbide which are mixed according to a certain proportion, the effect of a reducing agent can be achieved while the ignition effect is achieved, manganese can be directly reduced in the reaction through addition of the aluminum powder, and therefore the effect of improving the manganese recovery rate is achieved.

The invention belongs to the technical field of asphalt mixed material experiments, and particularly relates to test equipment for measuring the high-temperature stability performance of an asphalt mixed material, the test equipment comprises a test platform, an environment control module and a data acquisition module, the test platform comprises a test bracket, samples to be tested are uniformly arranged on an inclined adjusting plate on the test bracket, and the environment control module is connected with the data acquisition module; the data acquisition module comprises a laser displacement sensor, and the laser displacement sensor is arranged at the position, corresponding to the to-be-tested sample, of the adjusting plate; according to the invention, the laser displacement sensor located in the protection box is started at regular time, and the relative displacement change between the laser displacement sensor and the to-be-tested sample is calculated according to the change of the reflected laser, so that the actual deformation displacement of the to-be-tested sample is accurately measured and recorded and is transmitted to external computer equipment; and real-time and accurate data acquisition of the deformation degree of the to-be-tested sample is realized.

The invention discloses a method for preparing reduced iron through low-carbon agglomeration-hydrogen reduction of an iron-containing raw material, and belongs to the technical field of ferrous metallurgy. The method comprises the following steps: uniformly mixing an iron-containing raw material with a composite binder and water to obtain a mixture; the mixture is sequentially subjected to homogenization treatment, high-pressure forming and drying solidification, and cold-pressed pellets are obtained; and the cold-pressed pellets are subjected to hydrogen reduction, and metallized pellets are obtained. The method can be used at a lower temperature (lt; according to the method, the furnace burden suitable for direct hydrogen reduction of the shaft furnace is prepared at the temperature of 300 DEG C, the metallized pellets are obtained through further direct hydrogen reduction, the technological process is short, the carbon emission in the reduction process is greatly reduced through hydrogen reduction, and the obtained metallized pellets can be used for different scenes such as converter steelmaking and electric furnace steelmaking according to different qualities.

The utility model provides harmless treatment equipment for arsenic-calcium slag. The harmless treatment equipment comprises a mixer, a medium-temperature volatilization furnace, a high-temperature decomposition furnace and a tail gas purification device, the mixer is provided with a mixed material inlet and a mixed material outlet, and the mixed material inlet is used for inputting arsenic-calcium slag and pyrite. The medium-temperature volatilization furnace is provided with a volatilization furnace material inlet, a volatilization furnace gas inlet, a volatilization furnace gas outlet and a volatilization furnace tailing outlet. And the volatilization furnace material inlet is connected with the mixed material outlet. The high-temperature decomposing furnace is provided with a decomposing furnace material inlet, a decomposing furnace gas inlet, a decomposing furnace gas outlet and a decomposing furnace tailing outlet. The material inlet of the decomposing furnace is connected with the tailing outlet of the volatilization furnace. The tail gas purification device is provided with a purification inlet and a purification outlet, and the purification inlet is connected with the volatilization furnace gas outlet and the decomposition furnace gas outlet. The harmless treatment equipment for the arsenic-calcium slag can effectively remove arsenic in the arsenic-calcium slag, avoid arsenic pollution, improve the utilization rate of pyrite and save cost and heat.

The invention relates to a nano silicon carbide whisker and a preparation method thereof, and the preparation method comprises the following steps: (1) carrying out acid process treatment on fly ash by using an acid solution, so that the content of key impurity elements in the fly ash accounts for 2-11% of the total mass of the treated fly ash, and obtaining acid-treated fly ash; (2) mixing the acid-treated fly ash with a first carbon source to obtain a mixture; and (3) covering the mixture with a second carbon source, roasting in a reducing atmosphere to obtain a roasted material which comprises a nano silicon carbide whisker layer and a total impurity layer positioned below the silicon carbide whisker layer, and removing the total impurity layer to obtain the nano silicon carbide whisker. According to the preparation method, the low-cost fly ash is taken as a raw material, the advantages of low preparation cost and relatively high product yield can be taken into account through the synergistic effect of moderate acid treatment, raw material position setting and roasting in the reducing atmosphere, and good morphology and relatively high purity of the nano silicon carbide crystal whiskers are ensured.

The invention relates to the technical field of lithium ion battery manufacturing, and discloses a homogenate feeding design method and device of a lithium ion battery and a computer storage medium, the method comprises the following steps: based on basic characteristic data of different types of raw materials of the lithium ion battery, constructing a non-uniformity characterization model of a mixture and obtaining a non-uniformity characterization result; and inputting the non-uniformity characterization result into a finite element model of the battery pole piece, and solving the finite element model in combination with an applied load and a boundary condition to obtain an internal cracking behavior simulation result of the mixture under different working conditions. And constructing an optimization model which takes the homogenate feeding scheme as a design variable, takes a design target as a target function and meets design constraint conditions, and solving to obtain a target homogenate feeding design scheme. The problems of neglecting of non-uniformity and cracking of the mixture in a traditional mode can be solved, the risks of stress concentration and capacity fading in the battery are reduced, homogenate feeding is more scientific and accurate, and the performance and reliability of the battery are improved.

The invention relates to the technical field of environment-friendly materials, and discloses a high-strength degradable packaging material and application of the high-strength degradable packaging material in cosmetic packaging materials.The preparation method of the high-strength degradable packaging material comprises the steps that polylactic acid, vanillic aldehyde modified polyester, polyadipic acid, triethyl citrate, calcium stearate and an antioxidant are added into a high-speed mixing machine, and the mixture is stirred to be uniform; mixing at 60 to 80 DEG C for 10 to 20 minutes to obtain a mixed material; the mixed material is subjected to melt blending through a double-screw extruder, the blending temperature is 160-180 DEG C, the screw rotating speed is 250-300 rpm, extrusion granulation and drying are conducted, and the high-strength degradable packaging material is obtained. The high-strength degradable packaging material can be applied to cosmetic packaging materials such as bottle bodies, bottle caps, hoses and packaging boxes. The prepared packaging material is high in mechanical strength and has good degradability and flame retardance.

The invention provides a preparation method of a wear-resistant and strength-coordinated hard alloy product. The method comprises the following steps: (1) hard phase pretreatment: mixing tungsten carbide powder with a yttrium-stabilized zirconia precursor solution; (2) nano coating modification: placing the mixed material in a planetary ball mill for ball milling to obtain yttrium-stabilized zirconium oxide coated tungsten carbide composite powder; (3) preparing a binding phase; (4) mixing and pressing; (5) performing gradient sintering to obtain a sintered body; and (6) the sintered body is placed in a vacuum furnace to be subjected to aftertreatment, and the wear-resistant and strength-coordinated hard alloy product is obtained. Through multi-dimensional innovation of material proportion innovation, process optimization and equipment improvement, the technical problems of traditional hard alloy in the aspects of hardness and toughness balance, high-temperature performance stability, production cost control and the like are successfully solved, and a hard alloy solution which is excellent in performance and economical and feasible is provided for the field of high-end equipment manufacturing.

The invention provides a clay type lithium ore-lepidolite-spodumene continuous induction suspension cascade roasting lithium extraction method, which comprises the following steps: mixing clay type lithium ore and lepidolite concentrate for pelletizing, then mixing with spodumene concentrate to obtain a clay type lithium ore-lepidolite-spodumene mixed material, and carrying out continuous induction suspension cascade roasting on the clay type lithium ore-lepidolite-spodumene mixed material to obtain the clay type lithium ore-lepidolite-spodumene powder. And carrying out gradient high-temperature roasting, low-temperature acidizing roasting and water leaching to obtain a lithium leaching solution. The leaching rate of lithium in the lithium leachate obtained through the lithium extraction method is larger than or equal to 90%, the problem that existing spodumene roasting crystal transformation temperature is high can be effectively solved, meanwhile, the extraction and utilization rate of lepidolite and clay type lithium ore is increased, integrated extraction and utilization of lithium resources are achieved, and the method is simple in process, low in energy consumption, low in cost, easy to industrialize and suitable for industrial production. Good application prospects are realized.

The invention discloses a preparation method of regenerated glass fiber reinforced PA6 plastic particles based on a fan blade, and the preparation method comprises the following steps: crushing the fan blade and removing metal impurities to obtain a crushed material; the crushed material is subjected to pyrolysis treatment, and a primary treatment material is obtained; performing low-temperature oxidation treatment on the primary treatment material to obtain a secondary treatment material; the secondary treatment material is placed in an impregnating compound to be subjected to impregnating treatment, and surface-modified regenerated glass fibers are obtained; mixing the regenerated glass fiber with a resin matrix to obtain a mixed material; and melting the mixed material, and carrying out injection molding extrusion to obtain the recycled glass fiber reinforced plastic particles. According to the preparation method of the reinforced PA6 plastic particles based on the regenerated glass fibers of the fan blades, the pure glass fibers can be recycled from the fan blades, the reinforced plastic particles can be prepared after the recycled glass fibers are mixed with the resin, and further high-value utilization of recycled products is achieved.

The utility model discloses a plastic wood product production system device which comprises a main material storage and conveying area, an auxiliary material feeding and weighing area and at least one mixed material conveying, extruding and feeding area. A CaCO3 main material storage and conveying unit, a CaCO3 transition unit, two groups of PVC main material storage and conveying units and a wood powder main material storage and conveying unit are arranged in the main material storage and conveying area; a group of auxiliary material pouring bin dedusting and weighing units are arranged in the auxiliary material feeding and weighing area; a mixing unit, a mixture conveying unit and a mixture storage and extrusion feeding unit are arranged in the mixture conveying, extruding and feeding area. The device has the advantages of being efficient in operation, high in weighing precision, good in mixing effect, remarkable in energy conservation, environmentally friendly, high in automation degree and the like.

The utility model belongs to the technical field of oily sludge treatment, and relates to a nano water washing composite ultrasonic demulsification device which is used for monitoring the temperature in a conditioning tank and controlling the temperature in the conditioning tank within a specified range under the action of a control unit and a heating unit so as to realize constant-temperature stirring of to-be-treated oily sludge in the conditioning tank; corresponding three-phase partition design is carried out in the ultrasonic enhanced demulsification tank, upper oil collection, middle water drainage and bottom sludge discharge are achieved, a material opening formed in the side wall of the rectangular solid-liquid separation box is communicated with a discharging opening of the tempering tank, mixed material feeding can be achieved, after three-phase separation is completed, a control unit is used for controlling a sludge pump to rotate reversely, and the sludge pump is used for discharging sludge. According to the present invention, the separated intermediate water can be fed into the modulation tank so as to achieve the recycling of the intermediate water, such that the advantages of low manufacturing cost, strong field adaptability, simple operation and the like are provided, the crude oil can be recovered to the maximum extent, the hazardous waste discharge can be reduced, and the enterprise cost can be reduced.

The invention relates to the machining and manufacturing technology of automobile parts, in particular to a low-stress assembling and bonding device and method for an outer-steel inner-carbon mixed material B column assembly. According to the method, a refined gluing regulation and control mechanism matched with the complex structure of the B column with the steel outside and the carbon inside is constructed, the glue amount requirements of different areas are met by dynamically adjusting the flow, the thermal expansion difference of materials is buffered through the reasonable glue layer thickness, the glue coating shape is planned according to a preset track, and the curved surface characteristics are attached; overlapping spraying is adopted to improve the area coverage rate of a key area, and constant-temperature heating is combined to improve the fluidity of glue. The method can be extended to vehicle body components such as columns A and doorsill beams, an innovative technical path is provided for efficient and reliable manufacturing of multi-material vehicle bodies, and the application scene is expanded. By means of the device, automatic low-stress assembling and bonding of the B column assembly made of the'outer steel and inner carbon 'mixed materials are achieved, and the stress concentration phenomenon caused by uneven temperature and unbalanced pressure field is reduced.

The invention discloses a method for preparing biomass-based hard carbon through in-situ continuous catalytic carbonization and application, and belongs to the technical field of biomass-based carbon material preparation and energy storage. The method comprises the following steps: mixing a biomass raw material with a zinc salt aqueous solution; performing low-temperature pyrolysis and carbonization on the mixed material in an inert atmosphere; performing high-temperature carbonization on the low-temperature pyrolysis carbonization intermediate in an inert atmosphere; and after high-temperature carbonization is finished, naturally cooling to room temperature, washing and drying to obtain the hard carbon material. By utilizing the differentiated existence forms of the zinc salt at different temperatures and the characteristics of in-situ continuous catalysis and high-temperature volatilization, special rapid heating equipment is not needed, and the catalyst does not need to be washed off after low-temperature pyrolysis carbonization, so that the cooperative regulation and control of the interlayer spacing and the closed-pore structure of the biomass-based hard carbon microcrystalline are realized; the biomass-based hard carbon with wide microcrystalline interlayer spacing and rich closed pore structures is obtained. The obtained hard carbon has large reversible specific capacitance, high platform capacity and high rate performance when being applied to a sodium / lithium ion battery negative electrode material.

The invention relates to a preparation method of a lanthanum-doped lithium borate coated LATP solid electrolyte, which comprises the following steps: S1, mixing a lithium source, an aluminum source, a lanthanum source, a titanium source and a phosphorus source, putting the mixed material into a dispersing agent, putting into a constant-temperature water bath stirrer, and heating and stirring until the mixture is completely dried to obtain a mixed raw material; s2, performing high-temperature primary sintering on the mixed raw material in an air atmosphere to obtain a composite oxide; s3, performing crushing treatment on a composite oxide, adding lithium borate, and performing uniform mixing to obtain a mixture; the mass ratio of the lithium-containing compound to the composite oxide is (0.01-0.05): 1; and S4, tabletting the mixture, and carrying out high-temperature secondary sintering in an air atmosphere to obtain the finished product lithium titanium aluminum phosphate material. The problems that in an existing scheme, the final calcination temperature of a solid electrolyte is generally up to 1100 DEG C or above, high energy consumption is likely to be caused, meanwhile, Li loss is caused, non-conductive AlPO4 is introduced, the crystal structure is unstable, the powder sintering performance is poor, and the ionic conductivity is reduced are solved.