340results about How to "Solve pollution" patented technology

The invention discloses a method of preparing aluminum oxide-silicon carbide compound porous ceramic by aluminum-silicon industrial waste residues. The primary raw materials comprise industrial waste residues, carbon powder, a pore forming substance and an adhesive. The aluminum oxide-silicon carbide compound porous ceramic is prepared by the following steps of mixing, drying, forming and sintering to obtain a final product. Treatment and high additional value utilization of the industrial waste residues are achieved. The prepared porous ceramic is remarkable in performance, and can be applied to the fields of filtration, sound isolation, heat isolation, fire fighting and the like. The method is simple in process flow and convenient for industrialized promotion; and the cost is good to control and the method has extreme economical value.

The invention discloses a phase change energy storage waterborne polyurethane nanofiber membrane and a preparation method thereof. Lignin-based phase change microcapsules are prepared by combining ultraviolet crosslinking with lignin shell packaging, and then the nanofiber membrane containing the phase change microcapsules is prepared through an electrostatic spinning technology. And finally, constructing the waterborne polyurethane phase change fiber membrane with asymmetric wettability through a low-temperature plasma technology. According to the invention, lignin is self-assembled to form nanoparticles, and ultraviolet light induces free radical polymerization to form a polymer film, so that the packaging capability of the phase change material is improved. The phase change microcapsule prepared by the method is high in packaging efficiency and excellent in phase change performance, the preparation process is green and environment-friendly, the technological operation is simple, the temperature of the prepared phase change energy storage waterborne polyurethane nanofiber membrane conforms to the comfortable temperature range of a human body, and the phase change energy storage waterborne polyurethane nanofiber membrane has excellent temperature regulation, waterproof and moisture permeable performance and is suitable for being used in the field of water treatment. Good application prospects are realized in the field of functional textiles with functions of intelligent temperature regulation, water resistance and air permeability and the like.

The invention relates to the field of photovoltaic technology, and discloses a photovoltaic solar module capable of preventing dust deposition, which comprises a mounting frame, a plurality of photovoltaic panels are arranged on the surface of the mounting frame, vertical columns are arranged at four corners of the lower part of the mounting frame, a rainwater collecting mechanism is arranged on the rear side of the mounting frame, Z-shaped fixing plates are arranged on two sides of the mounting frame, and the Z-shaped fixing plates are arranged on the mounting frame. The upper side of the Z-shaped fixing plate is provided with a first sliding rail, the length of the Z-shaped fixing plate is larger than that of the mounting frame, the upper side of the first sliding rail is provided with a first electric sliding block, a cleaning mechanism is arranged between the first electric sliding blocks, and the lower side of the mounting frame is connected with a sewage collecting assembly through a buckle assembly. The cleaning part is driven by the electric sliding block to efficiently clean the photovoltaic panel, and the power generation efficiency is guaranteed; the rainwater collecting mechanism reasonably utilizes rainwater, and the cleaning cost is reduced; the sewage collecting assembly prevents pollution of dirt to the ground, is stable in assembly connection, convenient to operate and maintain, capable of prolonging the service life and integrally efficient and practical.

The invention relates to a process for gradient extraction of seaweed protein, algin and fucoidin in brown algae. The invention relates to a process for extracting seaweed protein, algin and fucoidin in brown algae, which comprises the following steps: carrying out superfine grinding on seaweed, adding water for extraction, filtering and separating to obtain water extraction filtrate, repeatedly dissolving the water extraction filtrate in the next batch of superfine ground seaweed, and circulating for 7 times to obtain saturated or supersaturated water extraction filtrate; adjusting the pH value of the water extraction filtrate to be acidic, and filtering and separating through a micro-filtration membrane to obtain seaweed protein and first filtrate; adding calcium chloride into the first filtrate, and settling to obtain algin and supernate; filtering the supernate through a polyethersulfone composite membrane to obtain a fucoidin concentrated solution; and carrying out spray drying on the concentrated solution to obtain fucoidin powder. The method solves the problem that other functional components are wasted due to the fact that only a single component can be extracted in an existing brown algae functional component extraction method, and also solves the problems of secondary pollution, poor product quality and high cost in an existing extraction method.

The invention relates to a nickel-ruthenium composite coating plating method for a molybdenum alloy substrate, which is applied to the field of processing and manufacturing of metal-based molybdenum alloy substrates and comprises the following steps: carrying out surface pretreatment on a molybdenum sheet raw material to obtain a net molybdenum sheet; putting the pure molybdenum sheet into vacuum coating equipment, and starting the vacuum coating equipment to vacuumize to form a vacuum system; and vacuum coating equipment is started for heating, a high-temperature system is formed, the surface of the net molybdenum sheet is coated with a physical vapor deposition method, and the molybdenum sheet with nickel plated on the two faces and ruthenium plated on the single face is obtained. The method has the technical effects that a good coating film is formed on the surface of the molybdenum sheet through a vacuum coating method, the method is green and environmentally friendly, harmful substances are reduced, the adhesive force between the coating layer and the molybdenum sheet is high, the film layer is high in purity and good in quality, and the production quality of the molybdenum alloy substrate is improved. Grease, oxides, residual solvents, impurities and the like on the surface of the molybdenum sheet are cleaned through the surface pretreatment step, the surface quality and binding force of the molybdenum sheet are improved, and the connection firmness of the nickel-ruthenium composite coating on the surface of the molybdenum sheet is improved.

The invention relates to the technical field of energy conservation and environmental protection, and discloses a biomass oxygen-enriched combustion optimization and pollutant intelligent control system and method.The biomass oxygen-enriched combustion optimization and pollutant intelligent control system comprises a boiler temperature and pressure prediction system, a fuel prediction regulation and control system, a primary and secondary air prediction regulation and control system, a flue gas amount prediction system, a flue gas recirculation regulation and control system and a desulfurization and denitrification intelligent control system; the fuel prediction regulation and control system comprises a fuel identification module, a fuel heat value prediction module and a fuel demand prediction module; the primary and secondary air predictive regulation and control system comprises a primary air calculation module and a secondary air calculation module; the flue gas quantity prediction system comprises an induced draft fan control module and a flue gas prediction module; the flue gas recirculation regulation and control system comprises a recirculation quantity prediction module and a supplement quantity prediction module; the desulfurization and denitrification intelligent control system comprises a pollutant prediction module, a desulfurization agent prediction module and a denitrification agent prediction module. According to the invention, dynamic optimization and accurate control of the biomass boiler under the oxygen-enriched combustion condition can be realized.

The invention belongs to the technical field of two-dimensional materials, and particularly relates to a clean and lossless two-dimensional semiconductor material transfer method. The transfer method comprises the following steps: growing a two-dimensional semiconductor material on a growth substrate, then growing an inorganic protective layer on the surface of a two-dimensional semiconductor, spin-coating an organic polymer support layer, heating and curing, then stripping the growth substrate, transferring the stripped structure to a target substrate, and removing the organic polymer support layer to obtain the two-dimensional semiconductor material. An inorganic protection layer / two-dimensional semiconductor / target substrate structure is obtained, and two-dimensional semiconductor material transfer is completed. The two-dimensional semiconductor material transfer method is simple and easy to implement, clean and lossless transfer of the two-dimensional semiconductor material is achieved, meanwhile, the transferred two-dimensional semiconductor material can be protected against influences of water and oxygen in air, and the original performance of the two-dimensional semiconductor material is reserved to the maximum extent.

The invention discloses a molybdenum disulfide acid leaching purification process, relates to the technical field of molybdenum disulfide purification, and aims to solve the problems of waste acid recycling, wastewater treatment and equipment corrosion in the molybdenum disulfide purification process. The molybdenum disulfide acid leaching purification process comprises the following steps: S1, acid purification: adding a molybdenum concentrate raw material into a reaction kettle; adding reaction acid into the reaction kettle according to a certain solid-to-liquid ratio, heating the reaction kettle to react for a period of time, and cooling to dissolve impurities in the molybdenum concentrate; s2, filter pressing and cleaning: conveying the acid-washed material to a plate frame for filter pressing to form a filter cake, cleaning the filter cake with clear water for 2-4 times until the wastewater is neutral, and conveying the filter cake to the plate frame for filter pressing again; s3, repeating acid purification and filter-pressing cleaning for several times until various acids are used up in the process; and S4, drying: putting the cleaned filter cake into a drying system for drying to obtain the high-purity molybdenum disulfide with the purity of more than or equal to 99%. According to the acid leaching purification process, impurities in molybdenum disulfide are selectively dissolved, the purity of molybdenum disulfide is remarkably improved, and the industrial application requirement is met.

The invention relates to the technical field of agricultural fertilizers, and discloses a preparation method of an amino acid foliar fertilizer extracted based on animal hair, and the preparation method comprises the following steps: raw material pretreatment: carrying out plasma modification on animal hair to improve the keratin hydrolysis performance; a double hydrolysis process: firstly decomposing a keratin structure in the hair through sulfuric acid hydrolysis, and then generating free amino acid through enzyme hydrolysis; recycling by-products: preparing biochar or protein feed from undissolved residues generated in the hydrolysis process, and separating and recycling amino acids and salts in waste liquid; and preparing a foliar fertilizer formula: chelating the extracted amino acid concentrated solution with trace elements. The technical effects of zero emission and high-valued conversion of wastes are achieved through a resource utilization scheme that biochar is prepared from undissolved residues through a pyrolysis process or protein feed is prepared from the undissolved residues through secondary enzymolysis, and free amino acids and salts in waste liquid are separated and recycled through a membrane separation and crystallization extraction technology.

The invention relates to the technical field of inspection robots, and discloses an underground coal mine robot inspection man-machine interaction platform which comprises a height adjusting assembly, the bottom end of the height adjusting assembly is installed at the top of an anti-explosion machine body, a buffering assembly is installed at the top of the height adjusting assembly and used for relieving impact force of falling objects on the upper portion, and an object receiving platform is arranged at the top of the buffering assembly and used for receiving objects on the object receiving platform. A matrix sensor module is arranged at the top of the object receiving platform and used for accurately weighing the weight change of the falling object and judging the condition of the falling object in real time, so that the robot conducts environment monitoring and dynamic adjustment. By integrating a height adjusting assembly, a matrix sensor module, a buffer assembly and a dust collection cleaning system, the problems of falling object impact, dust pollution and equipment cleaning faced by the underground coal mine robot in the inspection process are solved, and the adaptability, stability and inspection efficiency of the robot in a complex environment are improved; and the cleanliness and accuracy of the equipment are ensured, so that the inspection process and data acquisition are optimized.

The invention relates to a method for efficiently inducing human hematopoietic stem progenitor cell erythroid to be directionally differentiated into mature erythrocytes in a serum-free and feeder-layer-free manner, which adopts a serum-free and feeder-layer-cell-free induction culture system, and uses an mTOR pathway inhibitor rapamycin to regulate the activity of an mTOR pathway in the erythroid differentiation process. The use dosage and the treatment mode of the mTOR pathway inhibitor rapamycin are further optimized, and the erythrocyte denucleation efficiency of an in-vitro induced differentiation system is remarkably improved to 70% under the condition that erythrocyte proliferation and differentiation are not affected or the cell state is not reduced. According to the method, heterologous pollution caused by animal serum or heterologous cells is effectively avoided, the clinical safety of in-vitro preparation of transfusion-level red blood cells in the future is ensured, the erythroid directional induced differentiation final maturation efficiency of the human hematopoietic stem progenitor cells is improved, meanwhile, the reagent cost is reduced, and large-scale preparation and clinical transformation are facilitated.

The invention provides a method for reactivating passivated and inactivated zero-valent iron and application in wastewater treatment.The method comprises the following specific steps that S1, zero-valent iron powder is added into wastewater to be stirred till the zero-valent iron is passivated and inactivated, a magnet is used for separating the passivated and inactivated zero-valent iron powder from the wastewater, and the zero-valent iron powder is obtained; washing the passivated and inactivated zero-valent iron powder with deionized water, and drying the zero-valent iron powder under nitrogen flow; s2, a wet ball mill is filled with grinding beads, passivated zero-valent iron powder and pure ethyl alcohol are added into the wet ball mill, a circulating water cooling system is used for controlling the temperature of a ball milling chamber of the wet ball mill to be 8-12 DEG C, the ball milling rotating speed is 1900-2100 rpm, the ball milling time is 9-11 min, the particle size of the ball milling beads is 0.3-0.5 mm, and the mass of the ball milling beads is 0.7-0.8 kg; and S3, the activated zero-valent iron powder is added into the wastewater to be stirred.

The invention provides a mesenchymal stem cell preparation as well as a preparation method and application thereof, and relates to the technical field of biology, the mesenchymal stem cell preparation contains 5 * 10 < 6 >-1.2 * 10 < 7 > cells / mL of mesenchymal stem cells, 0.1-0.6% w / v of human serum albumin and a solvent; the mesenchymal stem cells are obtained by culturing a serum-free culture medium, and the mesenchymal stem cells are obtained by resuscitating cryopreserved mesenchymal stem cells, inoculating the resuscitated mesenchymal stem cells into a culture container, culturing until the mesenchymal stem cells are completely adhered to the wall, and digesting. The mesenchymal stem cell preparation improves the treatment effect of mesenchymal stem cells.

The invention discloses an anti-freezing glycopeptide as well as a preparation method and application thereof, and relates to the technical field of freezing resistance. The amino acid sequence of the antifreeze glycopeptide is AFP1: DWWDPGFFGFPPH, and the amino acid sequence of the antifreeze glycopeptide is as shown in SEQ ID No. 1; aFP2: YGGPKPSPVDIDDW, and the AFP2 is as shown in SEQ ID No. 2. According to the preparation method disclosed by the invention, the crab shell enzymolysis product is creatively used as a basis, a non-enzymatic glycosylation method is adopted, and the crab shell polypeptide is combined with the glucan, so that the stability and the flavor of the polypeptide are obviously improved, and the anti-freezing protection performance is improved.

The invention relates to a geological disaster prediction method and system based on an optimized PU-XGBoost model, and belongs to the technical field of geological disaster monitoring and risk assessment, and the method comprises the steps: obtaining multi-source data including InSAR deformation monitoring data and historical geological disaster point data, taking the historical geological disaster points and InSAR significant deformation points in the InSAR deformation monitoring data as a positive sample set P, and carrying out the prediction of the InSAR significant deformation points in the historical geological disaster points; a PU-Learning strategy of a Spy sample is introduced to construct a reliable negative sample system, an XGBoost hyper-parameter is optimized and searched in combination with introduction of a BTO optimization algorithm, an optimal hyper-parameter combination is obtained, and an optimal model is obtained through training of a positive sample set P and a negative sample set RN; and performing geological disaster susceptibility prediction and hierarchical mapping on the research area based on the optimal model, thereby realizing high-precision and high-reliability evaluation of the geological disaster susceptibility of the research area.

The invention belongs to the technical field of pharmaceutical equipment, and particularly relates to a needle pre-filling continuous production process for plastic medicine bottles. The process comprises the following steps of (1) tube blank extrusion, (2) tube blank transfer, (3) needle adding and bottle making, (4) filling, (5) injector piston adding and sealing, and (6) blanking. The needle pre-filling continuous production process for the plastic medicine bottles is a whole systematic process and covers a process from raw material conveying to final product conveying, compared with a traditional BFS process, a packaging process is characterized in that an injection needle adding station and an injector piston adding station are added and A-level air shower protection is added in a whole transferring process, functions of equipment are greatly increased, the quality of produced products is higher, the sterile safety of the products is better, and the problem of pollution possibly existing in a process from production to injection of medicines is fundamentally solved.

The application relates to a swing granulator seven-star roller and a mounting structure thereof. The swing granulator seven-star roller and the mounting structure thereof comprise a seven-star roller body, the seven-star roller body is in a cylindrical working surface structure, seven convex granulation corners are uniformly arranged on the outer peripheral wall of the seven-star roller body, the working surfaces of the granulation corners are all arranged in arc structures, and the arc structures are matched with a screen of the swing granulator; a roller mounting mechanism, which comprises a rack, a bearing seat, a bearing arranged in the bearing seat and a rotating shaft penetrating through the bearing, the rotating shaft is connected with an end shaft of the seven-star roller body, the bearing seat is mounted on the rack, a material seepage discharge port is formed in the rack at the bottom of the bearing seat; and a sealing assembly, which is sleeved on the rotating shaft and located at the opening end of the bearing seat. The material can be more fully and uniformly extruded, the hardness of wet particles is effectively improved, the generation of fine powder after drying is reduced, the quality of granular products is improved, the dead angle residual of the material in the equipment is reduced, and the material waste is reduced.

The utility model discloses a kind of automobile air conditioner valve test equipment, it is related to valve testing equipment technical field.Like water mechanism, including water tank, water storage tank, the circulating water pump being set on the water storage tank;Product limiting mechanism, including L type support frame, the limiting frame being set on the L type support frame, the moving plate between the limiting frame and L type support frame is set.In use, the inlet pipe of product extends to the inside of several elastic plates in sealing test mechanism, sealing electric push rod, sealing outer ring, sealing gasket and several elastic plates are sealed to the connecting pipe and the connecting place of product inlet pipe by cooperation, avoid sealing gasket directly with product inlet pipe end port position contact, guarantee the sealing effect between equipment and product, again can avoid broken sealing gasket into the inlet pipe of product, effectively solve the problem that traditional equipment exists broken rubber residue stagnates in valve body inner cavity, causes subsequent assembly pollution or flow passage blockage.

The invention discloses a jaw crusher rack, and belongs to the technical field of jaw crusher racks, the jaw crusher rack mainly comprises a base plate, a left side plate, a rear plate, a right side plate and a front plate, the left side plate and the right side plate are symmetrically arranged above the base plate, and the rear plate and the front plate are clamped to the two ends of the left side plate and the two ends of the right side plate respectively to form a closed rack main body; second tenons are fixedly connected to the connecting position of the left side plate and the front plate and the connecting position of the right side plate and the front plate, and second mortises are formed in the connecting positions of the front plate and the second tenons. The machine frame has the beneficial effects that vibration transmission is weakened, part abrasion and scrap iron generation are reduced, the iron impurity mixing risk is reduced, the ore sand product purity is guaranteed, the overall strength and connection stability of the machine frame are improved, stress concentration is avoided, local part replacement can be achieved through modular design, and the production cost is reduced. The whole rack does not need to be replaced, so that the maintenance cost and shutdown loss are greatly reduced.

The utility model discloses a material nozzle structure of a filling machine, and particularly relates to the field of material nozzles, the material nozzle structure comprises a filling blanking nozzle, a cut-off assembly I is arranged in the filling blanking nozzle, a blanking nozzle cavity is fixedly arranged at the top of the cut-off assembly I, a self-cleaning mechanism is arranged at the top of the blanking nozzle cavity, and the self-cleaning mechanism is arranged at the bottom of the blanking nozzle cavity. A discharging pipe is arranged on one side of the discharging nozzle cavity in a penetrating mode, a second cutting-off assembly is arranged outside the discharging pipe, a check valve is arranged in the discharging pipe, and a feeding port is formed in one end of the discharging pipe in a penetrating mode. According to the utility model, the problem that honey is adhered to the blanking nozzle cavity and the filling blanking nozzle can be effectively solved, residual honey in the blanking nozzle can be automatically removed, blockage caused by drying and crystallization of the honey is prevented, and the pollution problem caused by bacteria breeding due to long-time residual honey in the blanking nozzle cavity and the filling blanking nozzle is prevented; meanwhile, the downtime caused by cleaning is remarkably shortened, the sanitary risk of the downtime caused by cleaning is remarkably reduced, the continuous production efficiency and the sanitary safety of products are guaranteed, and cross contamination is avoided.

The invention belongs to the field of high-value utilization of waste industrial products, and particularly relates to a method for preparing a silicon-carbon electrode material by using metal-rich residual carbon of a coal-to-hydrogen byproduct. According to the method disclosed by the invention, harmful light and heavy metal impurities in the metal-rich residual carbon can be removed, and meanwhile, the carbon-silicon composite porous structure and the endogenous graphene are synchronously generated. Due to the large surface specific surface area, the special hole structure and the enhanced conductivity of endogenous graphene, when the carbon structure is matched with hybrid silicon holes in the carbon structure to be used as electrodes of a super capacitor, a lithium ion battery and a sodium ion battery, the super capacitor, the lithium ion battery and the sodium ion battery can obtain very high electrochemical performance; and particularly, the material has excellent specific capacity and excellent rate capability.

The application discloses a method for preparing biofuel by low-temperature dechlorination of waste PVC and coupling biomass co-pyrolysis, which comprises the following steps: drying, crushing and screening waste PVC, and then performing low-temperature dechlorination in an inert atmosphere, wherein the carrier gas is inert gas, the dechlorination temperature is 340-380 DEG C, the dechlorination time is 20-40 min, and dechlorinated PVC is obtained; crushing and drying the dechlorinated PVC, and then mixing the dechlorinated PVC with biomass at a mass ratio of 0.1-10:1, and then heating and pyrolyzing at 500-700 DEG C for 20-40 min to obtain biofuel. The method achieves good dechlorination effect through step-by-step pyrolysis, and improves the quality of biofuel; the method has a simple process flow, does not need to add any catalyst and adsorbent, and has a good industrial application prospect.

The utility model discloses a uniform flow field hard alloy anodic oxidation device which comprises a tank body and oxidation anodes, the oxidation anodes are installed on two side plates of a tank chamber of the tank body, a liquid homogenizing cavity pore plate and a backflow cavity pore plate are fixedly installed at the front end and the rear end of the tank chamber of the tank body respectively, and an adjusting pore plate is adjustably installed on the liquid homogenizing cavity pore plate; the liquid uniformizing cavity pore plate and the end plate at the corresponding end of the tank body define a stirring and liquid uniformizing cavity, and a stirrer is arranged in a cavity body of the stirring and liquid uniformizing cavity; a backflow cavity is defined by the backflow cavity pore plate and an end plate at the corresponding end of the tank body, and the backflow cavity leads to the stirring and liquid homogenizing cavity through a circulating pipeline; and a movable anode scraping plate is arranged on the oxidation anode. The liquid uniformizing holes in the liquid uniformizing cavity pore plate correspond to the liquid uniformizing adjusting holes in the adjusting pore plate in a one-to-one mode, and the adjusting pore plate is adjustably installed on the liquid uniformizing cavity pore plate through pore plate adjusting bolts. The device can form a stable liquid flow field in the tank, ensures uniform distribution of metal ions, and is particularly suitable for precise anodic oxidation treatment of hard alloy.

The utility model relates to the technical field of diseased animal isolation, and discloses a diseased animal isolation cage which comprises a fixing structure movably installed at the top end of a device base, the output end of a water pump is fixedly connected with a connecting pipe, a hose is rotatably inserted into the bottom end of the inner wall of the connecting pipe, and a motor is installed at the other end of the top end of a top plate. The output end of the motor is fixedly connected with a second bevel gear, the surface of the second bevel gear is fixedly sleeved with a first bevel gear, filtering holes are formed in the surface of the device base, a movable drawer is slidably inserted into the device base, and a collecting box is slidably inserted into the front face of the device base. Through cooperative arrangement of a first bevel gear, a second bevel gear, a connecting plate, a hose and a spraying head, breeding personnel can conveniently disinfect and spray medicine to sick livestock, so that pathogens can be effectively killed, the sick livestock is prevented from infecting other livestock, and manual operation can be reduced.

The utility model discloses an integrated biomass carbonization powder making device, the device includes: raw material storage, connecting hopper, through the hopper and send biomass material to the discharge gas heat recovery storehouse, the discharge gas heat recovery storehouse is sent to carbonization powder integrated equipment after heating to biomass material through the discharge gas, carbonization powder integrated equipment carries out the grinding and heating treatment to biomass material through the coal mill, and the granularity of the material that satisfies the first condition is sent to the baking pipe by hot air, carries out the baking treatment in the baking pipe, and the powder material that satisfies the second condition after baking is sent to the filter by hot air, the filter transmits the powder material after filtering to the gasification furnace through the conveying equipment, and the filtered gas is output to the discharge gas heat recovery storehouse and inert gas generator through the gas circulation pipeline, the inert gas generator is connected with carbonization powder integrated equipment, and the heated gas is output to the coal mill and the baking pipe respectively.

This utility model discloses a wine storage tank for wine production, comprising: a stainless steel seal, including a fixed layer plate fixedly connected to the inner wall of the storage tank, a limiting shaft fixedly sleeved inside the fixed layer plate, a sealing cover plate movably sleeved on the outer wall of the limiting shaft, an internal gear ring fixedly connected to the top of the sealing cover plate, and a gear meshing on the inner wall of the internal gear ring. By setting a double-layer structure of a stainless steel top cover and a clay top cover at the top of the storage tank, the stainless steel top cover provides strong sealing, blocking the exchange of gases between the inside and outside when absolute sealing is required, thus preventing oxidation of the wine and external contamination. The clay top cover, relying on the microporous characteristics of its material, allows for natural ventilation when the wine needs to be breathable for aging, without the need to fully open the lid. Simultaneously, the double-layer design allows for flexible switching between usage scenarios, and individual opening is convenient and labor-saving for cleaning and maintenance, effectively solving the problems of traditional wine storage tanks where sealing and ventilation requirements are difficult to balance, and where opening the lid easily leads to wine loss and contamination.

This invention relates to a method for in-situ synthesis of visible light photocatalytic geopolymers from vanadium-containing solid waste. The technical solution is as follows: vanadium-containing solid waste is ground into powder, and the resulting vanadium-containing solid waste powder is mixed with vanadium pentoxide powder. The resulting vanadium-containing geopolymer precursor is mixed with an alkaline activator and stirred evenly to obtain a vanadium-containing geopolymer slurry. The vanadium-containing geopolymer slurry is placed in a mold, cured, demolded, cured a second time, and crushed to obtain a crushed vanadium-containing geopolymer. The crushed vanadium-containing geopolymer is mixed with deionized water to obtain a vanadium-containing geopolymer aqueous solution. Bismuth nitrate solution is added to the vanadium-containing geopolymer aqueous solution, mixed evenly, and the pH value is adjusted. A hydrothermal reaction is then carried out. Solid-liquid separation, washing, and drying are performed to obtain the visible light photocatalytic geopolymer. This invention can efficiently utilize low-vanadium content and completely eliminate vanadium. The in-situ synthesis of visible light photocatalytic geopolymers from vanadium-containing solid waste not only effectively decomposes organic pollutants under visible light conditions but also effectively fixes vanadium in the vanadium-containing solid waste.

The application relates to the technical field of semiconductor nanomaterials, and discloses an environment-friendly zinc sulfide nanoparticle as well as a preparation method and application of the zinc sulfide nanoparticle. The preparation method comprises the following steps: (1) activating Aspergillus oryzae spores, performing liquid fermentation, filtering the liquid fermentation product, washing, collecting solid substances, and obtaining biomass; (2) culturing the biomass in the step (1) in a ZnSO4.7H2O aqueous solution to obtain an Aspergillus oryzae liquid solution containing zinc sulfide nanoparticles; (3) drying the liquid solution obtained in the step (2) to obtain Aspergillus oryzae precipitate containing zinc sulfide nanoparticles; and (4) heating the precipitate in the step (3) at 400-450 DEG C for 4-6 h to obtain zinc sulfide nanoparticles. The application endows the zinc sulfide nanoparticles with excellent biocompatibility, expands the application of the zinc sulfide nanoparticles in the fields of biomedicine, chemical sensors, solar cells and light-emitting diodes, and provides a reference for the environment-friendly and batch production of the zinc sulfide nanoparticles.

The utility model provides a cleaning device for repairing communication equipment, and relates to the technical field of communication equipment. The cleaning device for repairing the communication equipment comprises a box body, a cleaning mechanism used for cleaning the communication equipment is arranged in the box body, a rotating mechanism used for enabling the communication equipment to rotate is arranged in the box body, the cleaning mechanism comprises a filter plate and a connecting pipe, the filter plate is fixedly installed in the box body, and the connecting pipe is connected with the filter plate. And the connecting pipe is fixedly mounted on the lower surface of the box body. According to the cleaning device for repairing the communication equipment, the cleaning mechanism is arranged, and the problems that according to an existing cleaning device, used cleaning liquid is generally difficult to recycle, a large amount of cleaning liquid is directly discharged after being used once, and consequently water resources and cleaning agents are wasted are solved; the problems that the repair cost is increased, and the surrounding environment is possibly polluted are solved, and the beneficial effects that the cleaning liquid can be recycled, resources can be saved, and the repair cost can be reduced are achieved.

The present application relates to a kind of biomass energy for zirconium oxychloride preparation zirconium oxide method and device, preparation method includes the following steps: first air purge the reaction furnace 4~8h, then into the reaction furnace and passes into biomass gas, after ignition control reaction furnace gradually heated to 800~1000 ℃, then zirconium oxychloride is placed in the reaction furnace, calcination 14~18h, obtain zirconium oxide.The device includes biomass gasifier, reaction furnace, hydrochloric acid absorption tower and flue gas absorption tower.The present application uses biomass as clean energy, burning efficiency is high, compared with traditional coal process, energy consumption is greatly reduced, significantly reduce carbon emissions, while nitrogen, sulfur content in flue gas is greatly reduced, easy to reach environmental protection emission standard, effectively solve the pollution problem of traditional process.