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Coated titanium anode and embedding preparation method thereof
PendingCN121781055Apromote decompositionhigh activitySolid state diffusion coatingElectrodesTitaniumEmbedding Agent
The invention discloses a coated titanium anode and an embedding preparation method thereof, and belongs to the technical field of coated titanium anodes, metal salt powder, an organic additive and inert filler are fully mixed to form embedding agent powder, the mass fraction of metal salt is 45-59%, the mass fraction of the organic additive is 1-5%, and the mass fraction of the inert filler is 40-50%; the sintering treatment is as follows: the pretreated titanium substrate is completely immersed in the embedding agent powder, the sintering temperature is 400-600 DEG C, the sintering time is 1-3 hours, and the heating rate is 5-10 DEG C / min. According to the method, low-temperature sintering is realized by precisely regulating and controlling the components and the proportion of the embedding medium and combining process parameters such as low-temperature sintering, and the damage to a titanium substrate is avoided; and meanwhile, the coating binding force of the titanium anode is improved, the service life of the titanium anode is prolonged, and technical innovation and industrial value are achieved.
Owner:JIANGXI STANDE ELECTRODE TECH CO LTD
Low-temperature-resistant trachinotus ovatus fry breeding method
PendingCN119111431AImprove low temperature resistanceImprove survival rateAnimal feeding stuffPisciculture and aquariaAnimal scienceJuvenile fish
The invention provides a low-temperature-resistant trachinotus ovatus fry breeding method which comprises the following steps: (1) parent selection and breeding: taking trachinotus ovatus as a female parent, and carrying out intensive culture before insemination; then low-temperature stress culture is carried out under the condition of 18-20 DEG C, and the survival and normal ingestion parent fishes are used for the subsequent breeding step; (2) cross breeding: screening out sexually mature parents for induced spawning to complete artificial insemination; when the larvae are hatched out of membranes, the larvae are transferred into a breeding pond for fry breeding; (3) feeding rotifer and copepod larvae to the newly hatched larvae; when the larvae are transformed into juvenile fishes, feed containing drosera burmannii is fed, and when the juvenile fishes are transformed into juvenile fishes, feed containing eucommia ulmoides vines is fed for at least 15 days. According to the method, the low-temperature resistance of the trachinotus ovatus fries is effectively improved, and the method is easy to operate, low in cost and easy to apply and popularize.
Owner:HAINAN CHENHAI AQUATIC CO LTD
Method for non-destructive recovery of waste catalyst carrier and noble metal
PendingCN119464710AEfficient leachingreduce pollutionProcess efficiency improvementPtru catalystEnvironmental engineering
The invention relates to the technical field of catalyst recovery, and discloses a method for non-destructively recovering a waste catalyst carrier and noble metal. The present invention uses a noble metal leaching agent comprising an oxidizing agent, a ligand precursor, and water for recovering spent catalyst supports and noble metals. The method comprises the following steps: after roasting and reducing the waste catalyst, leaching the waste catalyst in the precious metal leaching agent, and carrying out first solid-liquid separation and washing to respectively obtain a waste catalyst carrier and precious metal. According to the method, a form of firstly reducing and then oxidizing is adopted, a compound leaching system is used for replacing a traditional leaching system based on hydrochloric acid, acid gas volatilization during leaching reaction is reduced, environmental pollution is reduced, and the operation environment is improved.
Owner:BEIJING UNIV OF CHEM TECH +1
Device model updating method and device, electronic equipment and storage medium
PendingCN119272670Aachieve calibrationshort processing cycleComputer aided designSpecial data processing applicationsSimulationHemt circuits
The invention provides a device model updating method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the simulation of a device required by a to-be-processed process node through electronic design automation simulation software, constructing a device simplified model based on the model simulation parameters of the device extracted in the simulation process, and carrying out the simulation of a device model. Generating a corresponding standard unit circuit according to the device simplification model; in electronic design automation simulation software, a simulation test circuit comprising a standard unit circuit is built by using a simulation circuit simulator, and netlist simulation is carried out on the simulation test circuit; calculating a difference value between the netlist simulation result and an actual circuit test result of the device, and adjusting model simulation parameters according to the difference value; and generating an updated device model of the device by using the adjusted model simulation parameters.
Owner:SANECHIPS TECH CO LTD
High-entropy alloy with constant-elasticity and super-elasticity characteristics and preparation method
PendingCN119571175AImprove mechanical propertiesEasy to prepareHigh entropy alloysMechanical properties of carbon nanotubes
The invention discloses a high-entropy alloy with constant-elasticity and super-elasticity characteristics and a preparation method, the total mass of the high-entropy alloy is 100 wt.%, and the high-entropy alloy comprises the following chemical components (wt.%): 5-10% of Ti, 15-20% of Zr, 35-40% of Hf, 15-20% of Ni, 10-20% of Co and the balance of Cu. The high-entropy alloy has both constant elasticity and superelasticity, and has excellent mechanical properties.
Owner:XI AN JIAOTONG UNIV
Membrane-free electrochemical calcium and magnesium selective removal and recovery system and method
InactiveCN119080269Asolve pollutionReduced Possibility of ContaminationWater contaminantsWater softeningMembrane foulingElectrochemistry
The invention belongs to the technical field of electrochemistry, and relates to a membrane-free electrochemical calcium-magnesium selective removal and recovery system and method. The membrane-free electrochemical calcium-magnesium selective removal and recovery system comprises a water inlet tank, a direct-current power supply, an electrolytic bath, a water pump and a crystallization granulation column; the anode cylinder is internally provided with a porous cathode filter element, the anode of the direct-current power supply is electrically connected with the anode, and the cathode of the direct-current power supply is electrically connected with the porous cathode filter element; a water outlet of the water inlet tank is connected with the electrolytic bath, the top in the porous cathode filter element cylinder is communicated to the bottom of the crystallization granulation column, and a water outlet is formed in the upper part of the crystallization granulation column; a membrane-free electrochemical method is adopted, OH <-> is generated by pumping the porous cathode, and the problem of membrane pollution is completely avoided; by regulating and controlling electrochemical parameters and cathode configuration, the purpose of graded calcium and magnesium removal can be achieved, and meanwhile efficient recovery of calcium and magnesium ions can be achieved by combining with a crystallization and granulation system; the membrane-free design reduces the operation and maintenance cost of the system, and calcium and magnesium ions are efficiently removed and recycled in a graded manner, so that the economical efficiency of the process is improved.
Owner:XI AN JIAOTONG UNIV +1
Quaternary ammonium salt modified strong anion monolithic column
PendingCN119318820Agood compatibilityImprove adsorption capacitySolid sorbent liquid separationDNA preparationSpecific adsorptionPhysical chemistry
The invention relates to a quaternary ammonium salt modified strong anion monolithic column, and discloses a monolithic column material, and quaternary ammonium salt groups are grafted on the internal surfaces of pores and channels in the monolithic column material. The quaternary ammonium salt group exists in the form of EP-OCH2CH (OH) CH-N + R1R2R3. The monolithic column prepared by the invention is rich in hydroxyl groups, has excellent compatibility to an elution object containing biomacromolecules, has excellent specific adsorption capacity for nucleic acid substances, and is suitable for enrichment and separation of DNA and / or RNA substances.
Owner:YU JI (SHANGHAI) BIOLOGICAL TECH CO LTD
Multi-laser-area additive-detection-subtractive composite manufacturing method
PendingCN119407197Aovercome limitationsshort processing cycleAdditive manufacturing apparatusIncreasing energy efficiencyMechanical engineeringChemistry
The invention discloses a multi-laser-area additive-detection-subtractive composite manufacturing method which comprises the following steps: establishing a three-dimensional model of a part to be formed, and adding a necessary support structure model for the three-dimensional model; laser printing process parameters are set, a model formed by combining the three-dimensional model and the supporting structure body model is sliced layer by layer, and a slicing program is obtained; the slicing program is imported into multi-laser powder bed fusion forming software, and a printing program is generated; a printing program is imported into the multi-laser-area material increasing-detecting-material decreasing composite device; the multi-laser-area additive-detection-subtractive composite device prints an entity of a part to be formed on a forming substrate of the multi-laser-area additive-detection-subtractive composite device according to the slicing program; and after printing is finished, the forming substrate is taken out of the multi-laser-area additive-detection-subtractive composite device, the entity of the to-be-formed part is cut off from the forming substrate, and the entity of the to-be-formed part is obtained. The forming efficiency is improved, and the machining quality and precision are guaranteed.
Owner:JIANGSU UNIV
Comprehensive monitoring method for pore water pressure and layered settlement of soft soil foundation engineering
ActiveCN119287860AEasy to installGuaranteed compactnessFluid pressure measurementHeight/levelling measurementSoil sciencePore water pressure
The invention belongs to the technical field of soft soil foundation engineering monitoring, and provides a soft soil foundation engineering pore water pressure and layered settlement comprehensive monitoring method which comprises the following steps: S1, selecting a plurality of measuring holes in a monitoring area, and dividing each measuring hole into a plurality of different depth intervals; s2, a measuring rod assembly is installed in each depth interval, and a pressure meter and a settlement anchor point assembly are installed on each measuring rod assembly; s3, a plurality of measuring rod assemblies are connected in sequence and put down into the measuring hole, and backfilling of the measuring hole is carried out; and S4, recording the pore water pressure value and the layered settling volume of each depth interval, and sending out an early warning signal when the real-time monitoring value exceeds a threshold value. According to the method, the pore water pressure and the layered settlement are associated together, feedback adjustment can be carried out on designed stacking data according to the association relationship, and the settlement trend can be accurately predicted to assist in determining the pre-pressing unloading time and the structure construction time.
Owner:GUANGZHOU BUILDING MATERIALS IND RES INST CO LTD
High-speed intelligent feeding system and method
InactiveCN119611929ARealize automatic identificationAchieve positioningConveyorsControl devices for conveyorsData systemVisual perception
The invention relates to the technical field of soft package carrying, and discloses a high-speed intelligent feeding system and method.The high-speed intelligent feeding system comprises a 3D visual perception module, a 2D image recognition and positioning unit, a control decision unit, an execution mechanism unit, a bag breaking and shaking processing module, a material bag recycling module, a data processing and analyzing unit and a system integration and management unit; according to the invention, by combining 3D photographing and 2D photographing technologies, efficient and accurate material identification and positioning are realized, in the 2D photographing process, the system can determine the center point coordinates of N bags at the same time, and only one-time 3D and 2D photographing is needed in the same plane, so that the process period is greatly saved, the whole feeding process is quicker, and the production efficiency is improved. The 3D photographing technology provides three-dimensional information of materials, the 2D photographing technology provides two-dimensional image information of the materials, through combination of 3D data, the system can achieve accurate positioning of the materials, and the system can adapt to materials of different shapes, sizes and numbers and can flexibly process various complex material conditions.
Owner:WUXI TUANDONG TECHNOLOGY CO LTD
Cyclic utilization method of maleic anhydride epoxidation catalyst
PendingCN119613356AImplement automatic parsingRealize multiple recyclingOrganic-compounds/hydrides/coordination-complexes catalystsPreparation from carboxylic acid anhydridesPtru catalystAqueous droplet
The invention relates to a cyclic utilization method of a maleic anhydride epoxidation catalyst. The method comprises the following steps: completely introducing a synthesized epoxy succinic acid reaction solution into an anion exchange column, adsorbing anions of a catalyst by using anion exchange resin, leaching the anion exchange column by using pure water, applying leacheate and the adsorbed reaction solution to synthesis of polyepoxysuccinic acid, adding quantitative maleic anhydride and water into a reaction kettle, and reacting for 2-4 hours at the temperature of 60-80 DEG C; and dropwise adding liquid alkali for hydrolysis, adding anion resin adsorbing the catalyst, heating, dropwise adding an aqueous hydrogen peroxide solution, then carrying out suction filtration, separating the anion resin from the epoxy succinic acid reaction solution, and continuously using the obtained anion resin and epoxy succinic acid reaction solution according to the steps to complete the recycling of the catalyst. According to the method, the specific anion resin is used for adsorbing the catalyst in the reaction system, and the catalyst and the adsorption resin can be recycled for multiple times only by adding the resin adsorbing the tungsten and molybdenum catalysts into the reaction system.
Owner:SHANDONG TAIHE WATER TREATMENT TECH CO LTD
Method for assembling amorphous alloy of current transformer
PendingCN119252638Ashort processing cycleIncrease productivityTransformers/inductances casingsTransformers/inductances corrosion protectionHeat conservationInstrument transformer
The invention discloses a current transformer amorphous alloy assembling method, and relates to the technical field of transformer assembling. The method comprises the steps that amorphous alloy is rolled to obtain an amorphous alloy iron core; performing vacuum thermal radiation heat treatment annealing on the amorphous alloy iron core to improve the performance of the amorphous alloy iron core; and the annealed amorphous alloy iron core is assembled in an alloy steel protective shell, the end face is covered with a hard insulating plate, and the performance of the amorphous alloy iron core is reinforced and stabilized. Corresponding parameters of a temperature rise process and a heat preservation process involved in the heat treatment annealing step are set by a computer for controlling the heat treatment furnace, a backing furnace is set to be automatically completed, and the method is short in period and high in production efficiency. According to the assembly mode without a mold, the production efficiency is greatly improved, and the production cost is saved.
Owner:DALIAN NORTH INSTR TRANSFORMER GROUP
Processing device for magnetic isolation groove of power transformer core pulling plate
ActiveCN222114205UIncrease productivityshort processing cycleOther manufacturing equipments/toolsTransformerClassical mechanics
The utility model discloses a processing device for a magnetic isolation groove of an iron core pulling plate of a power transformer, which belongs to the technical field of transformers and comprises a device body and further comprises a pushing mechanism, a clamping mechanism, a clamping mechanism and a clamping mechanism. The limiting assembly is mounted on the device body, is matched with the pushing mechanism and is used for limiting the iron core pulling plate; the cutting assembly is installed on the device body and used for cutting off connecting points between iron core pulling plate grooves; the grinding mechanism is installed on the device body and used for grinding the side face of the iron core pulling plate; wherein the pushing mechanism comprises a first pushing plate and a lead screw, the first pushing plate is in threaded connection with the lead screw rotationally connected to the device body, and the device further comprises an abutting assembly which is installed on the first pushing plate and used for abutting against the end of the iron core pulling plate; the pulling plate reshaping device does not need to reshape the pulling plate again, and is high in production efficiency, short in processing period and easy to guarantee product quality.
Owner:BAODING TIANWEI BAOBIAN ELECTRICAL
Wafer processing device, wafer processing system and method
The invention relates to the field of wafer gluing, and provides a wafer processing device, a wafer processing system and a wafer processing method, the device comprises a first interlayer manipulator, a first interlayer frame group, a second interlayer frame group, a first liquid processing module and a second liquid processing module; the first liquid treatment module and the second liquid treatment module are used for performing different liquid treatment processes on the surface of the wafer; the first liquid treatment module and the second liquid treatment module are stacked in the vertical direction; the first interlayer frame group is butted with the first side of the first liquid treatment module; the second interlayer frame group is in butt joint with the first side of the second liquid treatment module, and the second interlayer frame group is used for accommodating a wafer to be treated by the second liquid treatment module and a wafer treated by the second liquid treatment module; and when the working state of the first interlayer manipulator is an enabled state, the first interlayer manipulator is used for conveying the wafer on the first interlayer interface to the second interlayer interface. The device is used for improving the transmission efficiency of the wafer between the vertical stacking modules.
Owner:KINGSEMI CO LTD
Fluidization coating device with pulse, stirring and double-particle triple synergy
InactiveCN121797176ASolve the problem of streaming start-upImprove uniformityGranulation by powder suspensionGrain treatmentsMechanical crushingParticulate flow
The invention relates to the technical field of fluidized beds, in particular to a fluidization coating device with pulse, stirring and double-particle triple synergy, which comprises a spray fluidized bed reactor, a fluidized bed reactor, a stirring device and a double-particle fluidized bed reactor, the gas distributor is positioned above the carrier gas inlet and is used for uniformly distributing carrier gas entering from the carrier gas inlet on the whole bed layer to form fluidized gas; the gas-liquid two-phase flow nozzle is connected with the gas supply unit and the coating liquid conveying tank and is used for atomizing the coating liquid into micron-sized small liquid drops and then spraying the micron-sized small liquid drops into the spray fluidized bed reactor; the mechanical shearing unit continuously generates local mechanical crushing on the aggregate; the pulse air inlet device is connected with the air supply unit and is used for applying periodic pulse airflow to the fluidized bed layer and breaking particle aggregation and channeling formed during initial fluidization; and the flow aiding particles and the fine powder particles to be coated jointly form a double-particle fluidization system. The problems of difficult fluidization starting, non-uniform fluidization and the like of ultrafine powder particles are solved through triple synergy of pulse, stirring and double particles.
Owner:SUZHOU NEWMAT NANOTECHNOLOGY CO LTD
Method for electrochemical oxidation of unsymmetrical dimethylhydrazine wastewater
PendingCN119219133AStable in natureEasy to storeWater contaminantsWater/sewage treatment apparatusDimethylhydrazineSulfate radicals
The invention provides a method for electrochemical oxidation of unsymmetrical dimethylhydrazine wastewater. The method comprises the steps that 1, unsymmetrical dimethylhydrazine wastewater to be treated is placed in a middle water tank, an electrolytic bath is arranged in the water tank, and wastewater containing unsymmetrical dimethylhydrazine is introduced into the electrolytic bath; the treatment process comprises a power supply, a reactor, an intermediate water tank and a circulating pump, the reactor is composed of an anode, a cathode, a flow channel, a container and the like, a water pump and the power supply are started, and unsymmetrical dimethylhydrazine wastewater is pressed into the reactor through the water pump; according to the method, persulfate is utilized to cooperate with electrochemical oxidation of unsymmetrical dimethylhydrazine wastewater, only electric energy and persulfate need to be input into the system, the electric energy can activate the persulfate, the activated sulfate free radicals can strengthen the effect of electrochemical oxidation of unsymmetrical dimethylhydrazine, no extra catalyst needs to be added, operation is flexible, starting and stopping are convenient, the oxidation capacity is high, and the method is suitable for industrial production. The treatment period is short.
Owner:NO 63921 UNIT OF PLA
Carbon-coated oxygen-vacancy-enriched hollow sphere H-CeO2-coated C-NC composite material as well as preparation method and application thereof
PendingCN119306243Alow costshort processing cycleCerium oxides/hydroxidesCarbon preparation/purificationArgon atmosphereElectrical battery
The invention discloses a carbon-coated oxygen-vacancy-enriched hollow sphere H-CeO2-coated C-NC composite material and a preparation method and application thereof.The method comprises the steps that 1, polyvinylpyrrolidone is dissolved in an ethanol solution, CeCl3. 7H2O is added, Cu2O is added after the CeCl3. 7H2O is dissolved, stirring is conducted at the room temperature, and a brick-red solution is obtained; step 2, dropwise adding a sodium thiosulfate solution into the brick red solution to obtain a faint yellow solution, stirring at room temperature, and then sequentially standing, aging, centrifuging, washing and vacuum drying to obtain light yellow hollow CeO2 powder; step 3, respectively taking the hollow CeO2 powder and dopamine hydrochloride, adding into a Tris buffer solution, uniformly stirring, and sequentially centrifuging, washing and vacuum drying to obtain a CeO2 composite material CeO2 (at) PDA coated with polydopamine; and step 4, placing the CeO2 (at) PDA in a tubular furnace, and performing high-temperature carbonization treatment in an argon atmosphere to obtain the carbon-coated oxygen-vacancy-rich hollow sphere H-CeO2 (at) C-NC composite material which can endow the Li-S battery with excellent rate capability and good long cycle stability.
Owner:SHAANXI UNIV OF SCI & TECH
Leakage-proof excrement treater
ActiveCN222476403Ushort processing cycleclean and hygienicSludge treatment by de-watering/drying/thickeningClimate change adaptationMechanical engineeringWaste management
The utility model discloses an anti-leakage excrement treater which comprises an excrement box, first supporting strips are fixedly arranged on the two sides of one end of the inner wall of the excrement box, the two sides of the bottom of a feeding hopper make contact with the top ends of the two first supporting strips respectively, and second supporting strips are fixedly arranged at the positions, located at the lower ends of the two first supporting strips, of the two sides of the inner wall of the excrement box. A separation screen is inserted into the inner wall of the excrement box in a penetrating mode, the bottom of the separation screen makes contact with the top ends of the two second supporting strips, sliding grooves are formed in the two sides of the inner wall of the excrement box, a supporting frame is slidably arranged between the inner walls of the two sliding grooves, and a stirring roller is rotatably arranged on the inner wall of the supporting frame. According to the excrement treatment device, solid-liquid separation of excrement is carried out through the separation screen, then the stirring roller is flushed through the spraying holes in the bottom of the water inlet pipe, and the heating plate is started to dry and solidify the excrement on the separation screen after flushing is completed, so that the excrement treatment period is greatly shortened, the excrement is treated clean and sanitary, the peculiar smell is small, and the practicability of the device is improved.
Owner:HUADA ECOLOGICAL ENVIRONMENT TECH CO LTD
Plastic part forming mold with linkage ejection mechanism
Owner:TAIZHOU TENG NUO MOULD CO LTD
Mercaptopyridine modified monolithic column
PendingCN119280889Agood compatibilityImprove adsorption capacitySolid sorbent liquid separationDNA preparation
The invention discloses a monolithic column material. Pyridine groups are grafted on the inner surfaces of pores and channels in the monolithic column material. The pyridyl exists in the form of EP-OCH2CH (OH) CH-SPy, and the structural formula is shown in the description. The monolithic column prepared by the invention is rich in hydroxyl groups, has excellent compatibility to an elution object containing biomacromolecules, has excellent specific adsorption capacity for nucleic acid substances, and is suitable for enrichment and separation of DNA and / or RNA substances.
Owner:YU JI (SHANGHAI) BIOLOGICAL TECH CO LTD
Data asset processing method and device, equipment, storage medium and program product
PendingCN119648409AImprove processing efficiencyshort processing cycleFinanceProcess engineeringTesting Methods
The invention discloses a data asset processing method and device, equipment, a storage medium and a program product. The invention relates to the technical field of data processing. The method comprises the following steps: acquiring to-be-processed data assets and a preset second asset element set; for each first asset element, determining a second asset element matched with the category of the first asset element from the second asset element set, and determining the second asset element as a target second asset element; comparing the plurality of first attributes of the first asset element with the plurality of second attributes in the target second asset element to obtain a comparison result; and processing the first asset element according to the comparison result. According to the data asset processing method provided by the embodiment of the invention, the processing mode of the first asset element is determined according to the comparison result of the attribute of the first asset element and the attribute of the second asset element in the to-be-processed data asset, so that the processing efficiency of the data asset can be improved, and the processing period can be shortened.
Owner:CHINA CONSTRUCTION BANK +1
Machine learning-based service running invocation behavior real-time compliance detection method, system, electronic device and computer readable storage medium
The application relates to the field of service operation safety detection, in particular to a service operation calling behavior real-time compliance detection method and system based on machine learning, an electronic device and a computer readable storage medium, in the scene of dynamic change of a distributed service calling graph, service calling sequence information and service dependence topology information are jointly modeled, and feature extraction emphasis is dynamically adjusted according to different business scenes; when the detection result exists conflicts, stable adaptive resolution is carried out, and after a new type of violation mode is identified, the closed loop update of model parameters and a compliance rule library is realized, so that the real-time performance, complex behavior representation capability, result reliability, stability and adaptive processing capability of service operation calling behavior compliance detection are improved.
Owner:HANGZHOU ZHIWEI TECHNOLOGY CO LTD
Rail transit energy-saving system based on flywheel energy storage and rail transit
ActiveCN222563517Ureduce workloadSimple control logicElectrical storage systemLoad balancing in dc networkFlywheel energy storageControl cell
The embodiment of the utility model discloses a rail transit energy-saving system based on flywheel energy storage and rail transit, the system comprises a flywheel management controller, an AC-to-DC unit and at least two groups of flywheel energy storage systems, and each group of flywheel energy storage system comprises a control unit and a flywheel energy storage unit; the flywheel management controller is electrically connected with the control unit; the control unit is used for being electrically connected with a direct current bus; in the same flywheel energy storage system, the control unit is electrically connected with the flywheel energy storage unit and can control the flywheel energy storage unit to work. The input end of the AC-to-DC unit is used for being electrically connected with a rail transit AC power grid, and the output end of the AC-to-DC unit is used for being electrically connected with a DC bus. Therefore, the control logic of the control unit is simplified, the data processing workload of the flywheel management controller is reduced, the processing period is shortened, and the real-time control response is improved.
Owner:CANDELA (SHENZHEN) NEW ENERGY TECH CO LTD
Granulation waste powder separation and recovery method and pure ceramic powder
ActiveCN118751659BEfficient removalefficient reuseSolid waste disposalDrying gas arrangementsAlcoholSlurry
The invention provides a granulation waste powder separation and recovery method and a pure ceramic powder, comprising the following steps: taking an appropriate amount of granulation waste powder and pouring it into a ball mill, adding alcohol and citric acid; adding grinding balls, ball milling under vacuum conditions, placing after ball milling, using ammonium polyacrylate to fully decompose after placing, and recirculating the following ball milling steps at least five times: ball milling under vacuum conditions, placing after ball milling, using ammonium polyacrylate to fully decompose after placing, and obtaining ball-milled slurry; performing rotary evaporation solid-liquid separation on the ball-milled slurry to obtain rotary evaporation dried powder; secondary rinsing of the rotary evaporation dried powder in isopropanol, and performing rotary evaporation solid-liquid separation on the secondary rinsing powder to obtain pure ceramic powder; organic matter in the waste powder can be effectively removed to obtain pure ceramic powder, which not only reduces the amount of organic matter residue in the recovered powder and meets the standard of secondary use, but also enables the waste powder resources to be effectively recovered and reused.
Owner:苏州芯合半导体材料有限公司
Method for producing efficient organic fertilizer from kitchen waste
PendingCN121974759Ashort processing cycleImprove processing efficiencyBacteriaMicroorganism based treatmentAgricultural engineeringOrganic manure
The invention discloses a method for producing an efficient organic fertilizer by using kitchen waste, which comprises the following steps: draining the kitchen waste to obtain kitchen waste solid; cotton stalks and kitchen waste are mixed, and a compost material is obtained; the method comprises the following steps: culturing bacillus by using a T culture medium to obtain a zymophyte solution; mixing the zymophyte liquid with the compost material, adding water, and stirring and fermenting at the temperature of 60 DEG C; after reacting for 12 hours, adding the kitchen waste for the second time; after reacting for 24 hours, adding the kitchen waste for the third time; and reacting for 36 hours to obtain the efficient organic fertilizer. The preparation method of the organic fertilizer has the advantages that the treatment period is extremely short, the kitchen garbage is reduced by 85% within 36 hours, the product after the reaction does not need to be crushed, and the organic fertilizer product with the particle size of about 100 meshes is automatically generated; the method is energy-saving, environment-friendly and high in treatment efficiency, various indexes of the produced organic fertilizer can meet the agricultural industry standard of the People's Republic of China, namely the organic fertilizer, the economic and technical effects are remarkable, and industrial popularization and application are facilitated.
Owner:喀什大学
A method for preparing a charged hydrogel polyamide double network reverse osmosis membrane
ActiveCN117919973BReduce material requirementsefficient separationMembranesGeneral water supply conservation
A method for preparing a charged hydrogel polyamide double network reverse osmosis membrane, which relates to a method for preparing a reverse osmosis membrane. The purpose of the present invention is to solve the problem that the reverse osmosis membrane prepared by the existing method has multiple-step reactions and insufficient binding force of different structural and effective layers. The present invention constructs a charged hydrogel polyamide double network layer on the membrane surface through an interface-initiated free radical polymerization reaction, and enhances the electrical properties of the membrane through the presence of the charged hydrogel, thereby limiting the dissolution of ions in the water on the membrane surface and the diffusion of ions in the membrane, thereby reducing the number of ions passing through the membrane. At the same time, the hydrogel improves the hydrophilicity of the membrane, which is beneficial to the transmission of water molecules in the membrane and the improvement of the anti-pollution performance of the membrane. Method: 1. Prepare a polymer solution; 2. Prepare a reverse osmosis membrane; 3. Clean the membrane. The double network reverse osmosis membrane prepared by the present invention has a wide and uniform distribution of charged groups, which is beneficial to the efficient separation of salt and water. The present invention can obtain a charged hydrogel polyamide double network reverse osmosis membrane.
Owner:HARBIN INST OF TECH
Bimodal particle size distribution titanium-based powder for low cost additive manufacturing, titanium-based articles and methods of making the same
ActiveCN116511484Bhigh yieldSimple preparation processAdditive manufacturing apparatusTransportation and packagingManufacturing technologyTitanium
This invention provides a low-cost, bimodal particle size distribution titanium-based powder for additive manufacturing, titanium-based parts, and a method for preparing the same. The method utilizes two different medium particle sizes D... 50 Using near-spherical titanium-based powder as raw material, a near-spherical bimodal particle size distribution titanium-based powder with good uniformity is obtained by wet mixing of suspension and rotary degreasing in a furnace. Various near-spherical bimodal particle size distribution titanium-based powders can also be prepared. The difference between these powders lies in the different particle size ratios and mass ratios of the two raw material powders used. The bulk density and flowability of each bimodal powder are tested to determine the range of particle size ratios and mass ratios of the two powders in near-spherical bimodal particle size distribution powders with high bulk density and flowability. This guides the preparation of high-quality near-spherical bimodal particle size distribution titanium-based powders for additive manufacturing. Ultimately, additive manufacturing technology is used to prepare high-performance, low-cost titanium-based parts to meet the stringent performance requirements of titanium components in high-end fields such as aerospace.
Owner:UNIV OF SCI & TECH BEIJING
Preparation device of activated carbon for bagasse
ActiveCN222631080UIncrease economic value addedshort processing cycleCarbon compoundsChemical industryActivated carbonCarbonization
The utility model discloses a preparation device of activated carbon for bagasse, which relates to the technical field of activated carbon and comprises an activation furnace and a carbonization furnace, the carbonization furnace is fixedly mounted at the top of the activation furnace, a feed inlet is arranged at the top of the carbonization furnace, a feed hopper is movably mounted at the top of the feed inlet, and a first control valve is fixedly mounted on the back of the carbonization furnace. A liquid inlet pipe is fixedly mounted at the bottom of the right side of the activation furnace, an electric control water valve is fixedly mounted at the top of the liquid inlet pipe, a supporting plate is fixedly mounted on the inner wall of the activation furnace, and a stirring mechanism is fixedly mounted at the top of the supporting plate. According to the device for preparing the activated carbon for the bagasse, the activated carbon is prepared from the bagasse by utilizing the activating furnace and the carbonizing furnace, the bagasse can be economically and effectively utilized, the economic added value of the bagasse is improved, the environment is protected, a new thought is also provided for comprehensive utilization of the sugarcane, and the method for preparing the activated carbon by taking the bagasse as the raw material can realize resource utilization.
Owner:ZHONGHUANG ENVIRONMENTAL PROTECTION TECH CO LTD
Sinking courtyard stair structure
ActiveCN222477985UEnsure force safetyavoid interferenceProtective buildings/sheltersTread-and-riser unitsMechanical engineeringCross over
The utility model relates to a sinking courtyard stair structure which is fixed on an outer wall of a sinking courtyard and comprises a middle frame, stair plates and a platform plate. The middle frame is arranged on one side of the sinking courtyard outer wall in parallel, one sides of the platform plates are connected with the middle frame, the other sides of the platform plates are connected with the sinking courtyard outer wall, the platform plates are distributed on the two sides of the middle frame in a staggered mode, and the stair plates are fixed to the left side and the right side of the middle frame and distributed on the front side and the rear side of the middle frame in a crossed mode. The two ends of the stair plates are connected with the platform plates on the two sides of the middle frame respectively. Compared with the prior art, the utility model has the advantages of reasonable and safe acceptance system, simple structure, wide application range and the like.
Owner:TONGJI UNIV ARCHITECTURAL DESIGN INST GRP CO LTD
Crystallization device for magnesium chloride production
ActiveCN222488965Uhigh yieldhigh purityMagnesium chloridesSolution crystallizationFluid phaseProcess engineering
The utility model discloses a crystallization device for magnesium chloride production, and relates to the technical field of magnesium chloride production devices, an outlet of a magnesium chloride solution tank is communicated with a first evaporation tank, an outlet of the first evaporation tank is communicated with a settling tank, and a solid phase outlet of the settling tank is communicated with a first crude product tank; a liquid phase outlet of the settling tank is communicated with a clear liquid tank, an outlet of the clear liquid tank is communicated with a second evaporation tank, and an outlet of the second evaporation tank is communicated with a second crude product tank; outlets of the first crude product tank and the second crude product tank are respectively communicated with a crystallizing tank, and an outlet of the crystallizing tank is communicated with a magnesium chloride finished product tank. The magnesium chloride solution is concentrated twice and then recrystallized, so that the obtained magnesium chloride product is higher in purity and lower in water content, and the quality of the product is improved. In addition, through multiple purification, the yield of the magnesium chloride product is improved, the waste of raw materials is reduced, and the whole process is less in hazardous waste and environment-friendly.
Owner:SHANDONG HAIHUA LIWEI NEW MATERIALS CO LTD