304 results about "Green manufacturing" patented technology

The invention discloses an intelligent welding forming method and system for a green building steel heating radiator, and the method comprises the following steps: carrying out the surface defect recognition of a steel heating radiator base material based on an AI visual inspection system, recognizing a qualified base material, and automatically matching the type of a welding material from a material database according to the material and thickness parameters of the qualified base material. Welding parameters are intelligently matched through AI visual inspection and a neural network model, a laser and friction stir hybrid welding process is combined, traditional manual operation is replaced, the welding efficiency and precision are improved, and the problems of uneven welding seams and the like are solved; welding data are analyzed in real time through a multi-mode AI model, parameters are dynamically adjusted, intelligent defect recognition and repair welding are achieved in cooperation with 3D visual inspection, and the quality stability is improved through whole-process monitoring; smoke dust is treated through an environment-friendly process, acid pickling is replaced with mechanical rust removal, efficient recycling of materials is achieved through waste recycling, a green manufacturing system is constructed, and the sustainable development requirement of green buildings is met.

The invention relates to the technical field of high polymer material processing, in particular to an insulation board extrusion molding control method and system.The method comprises the steps that 1, multi-dimensional parameters are collected in real time, at least three detection sections are arranged on an outlet section of a die head of an extruding machine in the material flowing direction, and each section synchronously collects the following data; 2, evaluating the rheological state of the melt in real time; 3, dynamically reconstructing a temperature field, dividing the die cavity into an axial independent temperature control section and a circumferential heating unit, and dynamically adjusting the power of the heating unit according to a state judgment result in the step 2; 4, pressure-rotating speed cooperative compensation is carried out; and 5, closed-loop verification is carried out, the density uniformity of the formed plate is detected after the adjustment instruction is executed, and if the density range exceeds the limit, the step 2 is executed again. By accurately controlling the temperature and the concentration of the foaming agent, the feasibility of high-proportion mixing of the reclaimed material is optimized, the quality fluctuation caused by temperature and viscosity fluctuation is reduced, and green manufacturing, energy conservation and consumption reduction are promoted.

The invention relates to the technical field of carbon emission, in particular to a full-life-cycle carbon footprint tracking management platform for power equipment. The platform collects carbon emission parameters in the whole process from raw material input to scrap recovery in real time through a monitoring equipment network and a sensor array to generate an original monitoring data stream; performing multi-source fusion and deviation correction on the data stream to generate a standardized carbon footprint sequence; a carbon emission trend model is constructed based on sequence extraction correlation features, and a dynamic adjustment strategy is generated when an integration fracture risk or emission abnormity is detected; transmitting an abnormal signal through a mobile terminal interface, receiving an adjustment instruction, and generating a closed-loop control signal; storing the extended carbon footprint data to construct a full life cycle file; estimating emission fluctuation to generate a stability strengthening strategy; and a monitoring-analysis-control-prediction four-order optimization link is formed. According to the invention, accurate tracking and dynamic optimization of carbon emission are realized, data integrity and management timeliness are improved, and technical support is provided for green manufacturing of power equipment.

The invention relates to the technical field of green manufacturing, in particular to a manufactured cutting fluid recovery treatment method based on an oil-scrap separation system, which comprises the following steps: step 1, dynamic viscosity regulation and control pretreatment; 2, gradient centrifugal separation, wherein the pretreated mixed liquid is subjected to three-stage centrifugal separation; 3, interface adsorption fine treatment is conducted, specifically, the oil liquid obtained after centrifugal separation flows through a layered variable-porosity adsorption tower, and regeneration of an adsorption material is triggered according to the pressure drop change; and step 4, optimizing closed-loop parameters, and dynamically correcting the control parameter thresholds in the steps 1-3 by collecting and processing the associated data of the process parameters and the final oil metal residual quantity. According to the method, through precise matching and dynamic adjustment of multiple steps, the separation effect can be improved to the maximum extent in the green manufacturing and cutting fluid recycling process, waste emission and resource waste are reduced, and the purposes of energy conservation and emission reduction are achieved.

The invention provides an aluminum product rolling process real-time monitoring and optimizing system based on digital twinning, and relates to the technical field of power battery aluminum foil rolling. The monitoring and optimization system comprises a data acquisition module, a digital twin modeling module, a real-time monitoring module, a dynamic optimization module, a feedback control module, a green manufacturing optimization module and a cross-alloy adaptive module. According to the aluminum product rolling process real-time monitoring and optimizing system based on digital twinning, the data acquisition module, the digital twinning modeling module, the real-time monitoring module, the dynamic optimizing module, the feedback control module, the green manufacturing optimizing module and cross-alloy self-adaption work cooperatively; the defects in the aspects of data acquisition and integration, process parameter optimization and anomaly detection, energy consumption optimization and green manufacturing in the prior art are overcome.

The invention relates to the technical field of biological catalysis, and discloses an M88V mutant enzyme for preparing rebaudioside I. The M88V mutant enzyme is obtained by the following mutations generated by UGT76G1: M88V: methionine of the 88th amino acid sequence of UGT76G1 is mutated into valine. Aiming at the technical bottlenecks of low RI yield and poor selectivity in the existing RA biotransformation process, an efficient solution is provided for the UGT76G1 mutant developed by the invention. The mutant can specifically catalyze conversion from RA to RI, and the conversion rate of a target product is remarkably increased to 65% or above from general less than 7%. The excellent catalytic performance of the catalyst is verified in milliliter-level to upgraded reaction systems, the key problems of conversion efficiency and process amplification are solved, and a foundation is laid for large-scale green manufacturing of a high-added-value product RI.

The invention discloses a fused electrostatic spinning polymer / molecular sieve blended composite fiber as well as a preparation method and application thereof. The melt electrostatic spinning polymer / molecular sieve blended composite fiber is prepared from the following raw materials in parts by weight: 25-90 parts of a thermoplastic polymer matrix, 5-75 parts of a molecular sieve, 1-10 parts of a compatibilizer and 0-5 parts of a conductive additive. According to the polymer / molecular sieve blended composite fiber material and the preparation technology, no solvent participates in the whole process, and the green manufacturing requirement is met. Moreover, in the fiber material, the molecular sieves can be uniformly distributed on the superfine polymer fibers, scanning electron microscope pictures show that the molecular sieves are uniformly embedded into the material, no aggregate larger than 10 microns exists, and the fiber material has a hierarchical pore structure, a high specific surface area and excellent mechanical properties. Therefore, the fiber material can be applied to the fields of air filtration, catalytic reaction, drying purification, adsorption separation and the like.

The invention relates to the technical field of casting, in particular to vehicle gearbox casting equipment which comprises a support, a supporting plate used for placing a sand casting mold is fixedly connected to the support, a fixing mechanism used for fixing the sand casting mold is arranged above the supporting plate, and a driving mechanism is connected with a material guiding mechanism arranged on one side of the supporting plate. Through a rigid limiting structure of the square fixing frame and the supporting plate, impact of molten metal is resisted, displacement and collapse of a sand mold are avoided, inert gas is synchronously injected to stabilize the sand mold, the defects of sand holes and cold shut are reduced, the casting precision of key parts such as a gearbox bearing hole and an oil duct is improved, the inclusion and porosity are reduced, and the air tightness qualification rate of a shell is improved; the driving mechanism controls lifting, material pushing and vibration demolding in a linkage mode, the production period is shortened, the productivity is improved, the labor cost is reduced, meanwhile, molding sand can be recycled, emission is reduced, green manufacturing is met, and an efficient, high-quality and environment-friendly solution is provided for precise casting of the gearbox shell.

The present invention relates to an optimization method for integrated joint scheduling of production and logistics in a flexible job shop (FJSP) having a plurality of different types of automated guided vehicles (AGVs). The invention belongs to the field of assembly workshop production scheduling. Comprising the following steps: 1) according to a special assembly workshop machine and AGV combined scheduling process, Tent chaotic mapping is adopted to initialize a scheduling scheme and encode the scheduling scheme; 2) performing iterative optimization adjustment on the scheduling scheme through an improved multi-target artificial bee colony algorithm; and 3) carrying out production scheduling by using the optimized scheduling scheme. According to the method, the maximum completion time and the total energy consumption are optimized at the same time, the production efficiency is concerned, the requirements of green manufacturing and sustainable development are also considered, and enterprises are helped to achieve cost reduction and efficiency improvement, especially in the production process sensitive to energy consumption.

The invention provides a genetically engineered bacterium for producing astaxanthin, and the genetically engineered bacterium takes Yarrowia lipolytica Po1f as an original strain and contains a GGS gene, an HMGR gene, a beta-carotene synthesis gene, a beta-carotene ketolase gene and a beta-carotene hydroxylase gene. The invention further provides the Yarrowia lipolytica MC247, and the preservation number of the Yarrowia lipolytica MC247 is CGMCC NO.29699. According to the Yarrowia lipolytica MC247, the high-yield astaxanthin is obtained, a new technical scheme is provided for efficient and green manufacturing of the astaxanthin, and industrial production of the astaxanthin is facilitated.

The invention belongs to the technical field of inorganic chemical material preparation, and discloses a high-selectivity crystallization and impurity migration inhibition method of high-purity magnesium hydroxide. The method comprises the following steps: a phenylphosphonic acid surface modifier is introduced in the initial stage of crystallization, molecules of the phenylphosphonic acid surface modifier selectively occupy high-activity Mg < 2 + > sites of a magnesium hydroxide crystal face through bidentate coordination, and a molecular-level interface barrier with steric hindrance and electrostatic repulsion effects is formed, so that a Ca < 2 + > migration path is specifically blocked, and Mg < 2 + > crystallization is not influenced. The preparation method of the high-purity magnesium hydroxide is high in selectivity, high in efficiency, low in cost and environmentally friendly, the interface adsorption behavior of calcium ions is accurately intervened in the initial stage of crystallization through a molecular level surface engineering means, the technical bottleneck that impurity migration and lattice doping are difficult to control in a traditional process is fundamentally solved, and the preparation method is suitable for industrial production. And a brand new technical path is provided for green manufacturing of high-performance inorganic functional materials.

The invention discloses a silicon-free low-hardness high-thermal-conductivity gasket and a preparation method thereof. The silicon-free low-hardness high-thermal-conductivity gasket is prepared from the following raw material components: epoxy resin, a polyether amine curing agent, polyether polyol, a reactive diluent, a curing accelerator, a thermal-conductivity filler and a flame retardant, and the epoxy resin is prepared from liquid epoxy resin and flexible epoxy resin. According to the invention, a moderate cross-linked network system is constructed by introducing flexible epoxy resin and liquid epoxy resin, and a chemically bonded soft-hard alternating microphase separation structure is formed by embedding a long-chain aliphatic flexible segment into an epoxy rigid skeleton based on a molecular flexible regulation and control and multi-scale heat-conducting network synergistic construction principle; and by combining the physical stacking effect of the multi-particle-size compound heat-conducting filler, the balance between the flexibility and the heat-conducting property of the material is realized. The prepared heat-conducting gasket has the characteristics of low hardness and high heat conductivity, the risk of silicone oil precipitation is eliminated, meanwhile, the bio-based characteristics of the heat-conducting gasket meet the green manufacturing requirement, and a novel silicification-free solution is provided for long-acting and stable heat dissipation of microelectronic devices.

The invention relates to a low-carbon flexible job shop scheduling method based on deep reinforcement learning. The method comprises the following steps: S1, defining an LC-FJSP problem and constructing a disjunction graph model; s2, constructing a problem expression model based on a Markov decision process; s3, introducing a low-carbon map attention network, and integrating multiple attention modules; s4, improving the generalization ability of the model by adopting a graph pooling technology; s5, optimizing a solving process in combination with a Bayesian optimization method; s6, deep reinforcement learning training and verification tuning are carried out; and S7, performing job shop scheduling by using the trained model. According to the method, deep reinforcement learning and Bayesian optimization are combined, an efficient workshop scheduling decision in a low-carbon manufacturing scene is achieved, the constructed scheduling model has high environmental adaptability and energy consumption sensitivity, the low-carbon production scheduling requirement of a complex industrial scene can be effectively met, and intelligent decision support is provided for green manufacturing.

The invention provides a factory full-life-cycle management and control method, device and equipment and a storage medium, and belongs to the technical field of digitization. The method comprises the steps of performing dynamic mapping on a target factory through a pre-constructed three-dimensional twin model dynamically associated with an entity of the target factory, and obtaining factory dynamic mapping data in real time; on the basis of the obtained mapping data and a preset optimization model, the whole life cycle of the target factory is optimized, and an optimization strategy is obtained; according to the obtained optimization strategy, the whole life cycle of the target factory is managed and controlled, the real-time performance, the collaboration and the sustainability of the whole life cycle management and control of the factory are finally achieved, and it is ensured that the green manufacturing standard is met.

The invention provides an induced electric field-based polar plate electroplating and etching method, which comprises the following steps of: respectively placing two substrates on two sides of an electroplating tank, and respectively connecting the two substrates with a positive electrode and a negative electrode of a power supply; placing a plating piece serving as a bipolar plate in the electroplating tank, and dividing the electroplating tank into a plurality of independent areas; electroplating liquid is injected into the independent areas respectively, and a power supply is turned on, so that the two sides of the bipolar plate generate different potential fields in an induction mode respectively; after the preset electroplating time, the bipolar plate is taken down to obtain a final plated part, the technical bottleneck that a traditional electroplating process can only be used for single-face machining and single plating layer is overcome, the bipolar plate is used for separating an electrolytic bath and applying a directional electric field, electroplating or etching of differentiated materials is synchronously achieved on the two sides of the plated part, the production efficiency is remarkably improved, the equipment cost is reduced, and meanwhile, the production cost is reduced. A water-based metal salt solution is adopted to replace a traditional cyanide system, environmental pollution is reduced, and the green manufacturing requirement is met.

The present invention relates to the technical field of intelligent manufacturing equipment scheduling algorithms, and discloses a multi-load AMR scheduling method based on a heuristic algorithm, which aims to solve the problem of low efficiency in scheduling material handling tasks in intelligent manufacturing scenarios. This method first converts the unit platform and path into a weighted directed graph, with the weight being the AMR running time; secondly, the K-means algorithm is used to cluster the platforms to reduce the amount of calculation, and the cluster center is used as a candidate for the task starting point; then, a local optimal scheduling solution is generated based on a greedy algorithm, giving priority to the task with the shortest time consumption while satisfying the capacity constraint; finally, the total time consumption of different cluster center solutions is compared, and the global optimal solution is selected for output. This method can significantly shorten the task completion time, reduce path duplication and resource waste, improve the handling efficiency and loading rate of AMRs, and reduce energy consumption. It conforms to the development trend of green manufacturing, realizes efficient and reasonable scheduling, and is suitable for production and manufacturing scenarios with multi-machine linkage.

The invention belongs to the technical field of ferrous metallurgy and material modification, and particularly relates to a preparation method of green short-process hot work die steel, which comprises the following steps: obtaining scrap steel, adding alloy, and smelting to obtain molten steel; the molten steel is refined through fluoride-free rare earth refining slag, and refined molten steel is obtained; adding a nanoparticle modifier into the refined molten steel to obtain modified molten steel; and the modified molten steel is subjected to continuous casting or die casting, and the hot work die steel is obtained. According to the method, the fluorine-free rare earth slag refining and nano particle modification combined technology is adopted, fluorine-containing refining slag and traditional electroslag remelting are effectively replaced, power consumption and carbon emission in the smelting process are reduced, the technical development requirements of current green manufacturing and dual-carbon targets are met, and green short-process manufacturing of the hot work die steel is achieved; and the prepared hot work die steel has higher cleanliness, a more uniform organization structure and more excellent thermal fatigue performance.

The invention relates to the technical field of light-weight wire harness and multi-material conformal additive manufacturing, and provides a light-weight conformal wire harness additive manufacturing method and a working device.A base body obtained after surface treatment is installed and fixed to a printing device, printing and laying procedures are imported, and the printing device is initialized; conformally printing a first insulating layer on the surface of the substrate; a first conducting layer is laid on the first insulating layer in a conformal wiring mode through a wiring unit; conformally printing a second insulating layer over the first conductive layer; conformally printing a first shielding layer on the second insulating layer; if the wire harness is a multi-layer conformal wire harness, repeating the process to complete conformal manufacturing of all other insulating layers, conductive layers and shielding layers; if the wiring harness is a single-layer conformal wiring harness, a packaging layer is directly printed in a conformal manner; and post-processing the multi-material conformal wire harness to complete the preparation of the conformal wire harness. The method has the advantages of being high in production automation degree, high in production efficiency, high in material utilization rate, good in production flexibility, environmentally friendly in manufacturing and the like.

The invention belongs to the technical field of carbon fiber surface treatment, and particularly relates to a cross-linked polymer modified carbon fiber, a preparation method and a composite material. Aiming at the problem of insufficient interface bonding force between the existing polyarylsulfone / ketone thermoplastic sizing agent and the carbon fiber, the core of the invention is to apply a polyarylsulfone / ketone derivative of which a main chain or a side chain is provided with an electrochemically crosslinkable active group to the technical field of carbon fiber surface treatment. And constructing a covalent bond combined three-dimensional network structure coating on the surface of the carbon fiber in situ. According to the method, firm anchoring of the coating and the carbon fibers is achieved, and the interface load transmission efficiency and the interlayer shear strength of the carbon fiber / polyether-ether-ketone composite material can be remarkably improved. The method is mild in process condition, easy in parameter control and convenient in post-treatment, meets green manufacturing requirements, and has remarkable large-scale production advantages.

The invention relates to the technical field of plastic forming, and discloses a plastic leftover material forming process of a layered compaction structure, which comprises the following steps: S1, raw material pretreatment: selecting a new plastic material meeting performance requirements, drying, mixing with pretreated recycled material particles in proportion, uniformly stirring, and feeding into a raw material storage tank for later use; s2, melting and injection molding: feeding the mixed raw materials into an injection molding machine, heating in different areas through a charging barrel, and stirring and melting into a melt through a screw rod; the die set is arranged, through an immediate leftover material separation and recovery system, the cut leftover materials can be rapidly recycled, soil and water pollution caused by leftover material accumulation is avoided, meanwhile, waste of plastic raw materials is reduced, and the development concepts of green manufacturing and circular economy are met. Due to the sealing protection design of the die set, pollution caused by melt leakage is avoided, and diffusion of dust and harmful gas is reduced through the sealing structure of the movable groove.

The invention discloses a preparation method of an environment-friendly 3D printing three-dimensional surface floor, which comprises the following steps: S1, drawing a plane drawing of the floor, generating a 3D model of the floor by using a computer, and obtaining all layered structures and arrangement modes for forming the floor; and S2, raw materials for preparing the floor are prepared according to the 3D model of the floor in the S1, the raw materials are conveyed into a 3D printer for 3D printing, and all layered structures for the floor are printed. Through a sustainable raw material system, a formaldehyde-free laminating process, high-precision 3D printing texture forming, a three-layer environment-friendly protection layer, a bio-based edge sealing technology and an internet-of-things intelligent production system, production energy consumption is reduced by 40%, waste is reduced by 50%, closed-loop recovery is achieved, meanwhile, the international environment protection certification is met, the production efficiency is improved by 30%, and the production cost is reduced. And a full-chain green manufacturing scheme for synergistically improving the environmental protection performance, the production efficiency and the product quality is formed, and the double-carbon target requirement is met.

The invention provides a controlled release method of a low-additive-amount coal-based quantum carbon dot composite coated slow-release fertilizer, and relates to the technical field of slow-release fertilizers, the controlled release method comprises the following steps: S1, carrying out surface functional modification on coal-based quantum carbon dots, grafting amino and carboxyl on the surfaces of the coal-based quantum carbon dots, and forming molecular-level crosslinking points capable of being subjected to dual crosslinking with inorganic silicon-oxygen bonds and organic ester bonds; s2, sequentially wrapping a basic controlled release shell layer formed by biodegradable polyester and an intelligent response layer embedded with the coal-based quantum carbon dots by taking fertilizer particles as a core through a layer-by-layer spraying and fluidized bed coating process to form a composite coating structure; the coal-based quantum carbon dots subjected to surface functionalization modification serve as molecular-level crosslinking points under the extremely-low addition amount of 0.1-1 wt%, the molecular-level crosslinking points, inorganic silicon-oxygen bonds and organic ester bonds form a double-crosslinking network, the compactness and stability of a coating layer are remarkably improved, and therefore the raw material cost and processing energy consumption are reduced, and green manufacturing is achieved.

The invention discloses thin-strip electrolytic machining equipment and a system thereof, and aims to solve the problem of electrolyte splashing during electrolytic machining and realize green manufacturing. According to the machining equipment, a conveying assembly is arranged on a supporting frame and comprises first rolling wheels, second rolling wheels and third rolling wheels which are axially parallel, the two second rolling wheels and the two first rolling wheels are located at the two ends of the third rolling wheels in the conveying direction, the second rolling wheels are close to the third rolling wheels, and the second rolling wheels are higher than the third rolling wheels in the vertical direction; the third rollers are higher than the first rollers, and the two first rollers fix the two ends of the thin strip material. The driving assembly drives the first rolling wheel and the second rolling wheel to rotate and drives the third rolling wheel to move in the vertical direction. The third roller and the spraying end of the spraying assembly are both located in the electrolytic bath, the second roller is located above the electrolytic bath, the spraying end sprays external electrolyte to the surface of the thin strip material, and the sprayed turbid electrolyte is discharged from a liquid outlet in the bottom of the electrolytic bath; the electrolysis assembly makes contact with the ribbon material for electric conduction.

The invention belongs to the technical field of silicon steel sheet annealing test furnaces, belongs to environment-friendly manufacturing planning of ultrahigh-grade oriented silicon steel, and particularly discloses a silicon steel sheet annealing test furnace and a process method thereof. The silicon steel sheet annealing test furnace comprises an inlet section, a heating section, a connecting section and an outlet section, and the inlet section, the heating section, the connecting section and the outlet section form a furnace body structure; the furnace body structure is fixedly installed on a floor in a workshop through two H-shaped steel, the furnace body structure is provided with three cooling air discharging pipes, and the cooling air discharging pipes are outwards led out of the workshop for discharging. According to the silicon steel sheet annealing test furnace and the process method thereof, the three independent heating sections I, II and III and the three independent connecting sections I, II and III are arranged, and are matched with the independent online oxygen analyzer, the sampling port and the atmosphere supply system; and the requirements of multiple scenes such as an intermediate annealing scene, a non-oriented silicon steel finished product annealing scene and oriented silicon steel high-temperature annealing can be met.

The polishing device comprises a base, a two-dimensional driving mechanism is installed above the base through a support and drives a vertical electric cylinder to move forwards, backwards, leftwards and rightwards, a pressure sensor is installed at the lower end of a telescopic shaft of the vertical electric cylinder, and the two-dimensional driving mechanism drives the vertical electric cylinder to move forwards, backwards, leftwards and rightwards. A mounting plate is mounted at the bottom of the pressure sensor, and a detachable composite buffering polishing head is mounted at the bottom of the mounting plate. Mixed liquid nozzles are mounted on the left side and the right side of the composite buffer polishing head; according to the polishing device for manufacturing the ultrathin single crystal diamond substrate, chemical and mechanical cooperative polishing and flexible buffering compensation are achieved, a rectangular hole of the mounting frame allows the polishing head to move slightly, local stress concentration is eliminated, polishing uniformity is improved, the green manufacturing characteristic is achieved, modular maintenance is achieved, the detachable composite buffering polishing head and a bolt are designed to be replaced quickly, and maintenance is convenient.

The application discloses a laser cladding repair method for a flange furnace bottom disc of a long-service-life structure and belongs to the field of plating technology for metal materials, and aims at the green manufacturing plan of super-high-grade oriented silicon steel and comprises the following steps: performing state evaluation and pretreatment on a working surface of a bottom disc after a service cycle is completed, confirming whether the working surface is a primary service surface or a secondary service surface; pre-preparing three kinds of functional powders of substrate regeneration, A-surface thermal fatigue resistance and B-surface high-thermal-conductivity oxidation resistance; firstly, cladding a substrate regeneration layer on a surface of a substrate to reset a microstructure; secondly, selectively cladding an A-surface or a B-surface functional layer according to the attribute of the working surface to form a gradient repair structure; and finally, performing post-heat treatment. Through the differential powder system and the repair strategy, the application solves the different failure problems of the primary and secondary service surfaces and significantly improves the repair quality and the whole life cycle of the bottom disc, realizes life doubling after single repair and guarantees the product quality uniformity of the bearing silicon steel coil.

This utility model proposes a maintenance-free vacuum machine, comprising: a spiral central shaft and a cylinder. The central surface of the spiral central shaft has a spiral structure. The cylinder is installed in conjunction with the spiral central shaft, and the contact surfaces of the two are fitted together to ensure that no lubricating oil enters the cylinder, avoiding problems such as oil carbonization, emulsification, and contamination. There is no need to replace the filter element, add lubricating oil, or stop the machine for maintenance regularly, which greatly reduces the operation and maintenance costs. The outer periphery of the cylinder is provided with a first water-cooling jacket, which is connected to an external cooling device through cooling pipes. It is used to cool the cylinder with circulating water, keeping the operating temperature at 30-40℃, effectively slowing down component aging, extending equipment life, and eliminating the risks of high-temperature burns, lubricating oil leakage, and mechanical jamming, reducing safety hazards for operators. Exhaust gas is discharged directly without oil mist pollution. The water cooling system reduces water waste through closed-loop circulation, which meets the requirements of green manufacturing.

The invention relates to the technical field of lubricating oil additives, and discloses an environment-friendly additive for replacing a phosphorus-chlorine antiwear agent.The preparation method comprises the following steps that base oil is added into a reaction kettle, stirring is conducted for 15-20 min at the temperature of 50-70 DEG C at the speed of 300-600 rpm, then molybdenum oleate, modified hydrotalcite, modified eugenol and octyl dimethylbenzene are sequentially added under continuous stirring, uniform mixing is conducted, and the additive is obtained. The environment-friendly additive for replacing the phosphorus-chlorine anti-wear agent is obtained. Under high temperature and high pressure generated by friction, molybdenum oleate can be decomposed to form a molybdenum disulfide solid lubricating film with low shear strength, so that the wear resistance of the additive is enhanced; stearic acid is used for modifying hydrotalcite, so that the anti-wear effect is synergistically enhanced; an organic silicon chain segment in the modified eugenol can provide auxiliary lubrication, and polar groups are adsorbed on the metal surface, so that the corrosion resistance of the additive is improved; and the additive does not contain phosphorus, chlorine and other harmful elements, and accords with the development direction of modern green manufacturing and environment-friendly lubrication.

The invention discloses high-performance high-temperature steel for energy equipment suitable for an extreme environment and a preparation method of the high-temperature steel, and belongs to the technical field of high-temperature alloy materials. Waste steel circulation refining and residual element precise regulation and control are fully fused, waste steel efficient circulation utilization is achieved through a converter + LF / RH technology, CO2 emission and cost are reduced, and the energy consumption is reduced. And meanwhile, the residual element Sb in the waste steel is regulated to the beneficial interval of 0.002-0.010%, the high-temperature strength is improved through the grain refinement effect of the waste steel, grain boundary embrittlement is inhibited by combining the vacuum degassing and controlled rolling technology, collaborative innovation of waste steel resource recycling and high-temperature steel performance optimization is achieved, and the beneficial effects of green manufacturing and high performance are achieved.

The invention relates to the technical field of biomass energy conversion, in particular to a method and system for preparing sustainable aviation kerosene through methanol based on biomass gasification. The method sequentially comprises the steps of biomass gasification, purification and proportion adjustment, methanol synthesis, methanol-to-olefin conversion, oligomerization reaction and hydrofining. The selectivity of a target component is effectively improved by regulating and controlling the H2 / CO molar ratio to 2.0-2.2 and realizing multi-section conversion and heat energy gradient recovery under middle and high pressure. The condensation point of the finished product can reach-48 DEG C, the aromatic hydrocarbon mass fraction is as low as 0.22%, and the aviation fuel standard requirements are met. The method has the advantages of being high in carbon utilization rate, excellent in product quality, low in energy consumption, suitable for large-scale operation and the like, and is suitable for green manufacturing of sustainable aviation fuel.