3308results about How to "reduce manufacturing cost" patented technology

The invention relates to a method for preparing rebaudioside M through an enzyme method. According to the method, rebaudioside A or rebaudioside D is used as a substrate, and the substrate reacts to generate the rebaudioside M in the presence of a glucosyl donor under the catalytic action of UDP-glucosyltransferase and/or recombinant cells containing the UDP-glucosyltransferase. The method for preparing rebaudioside M through an enzyme method has important application value; and compared with the existing technology of extracting rebaudioside M from stevia rebaudian leaves, the method provided by the invention obviously shortens the production cycle, improves the productivity and lowers the cost, and can provide products having higher purity. Thus, the method can be used in the food and beverage industry in a more economical manner.

The invention provides a fiber reinforced thermolplastic plastic preparation method, which is obtained by mixing thermoplastic resin, fortifying fiber and auxiliary substance with exhaust type single screw-spindle extrusion machine, and extruding them, the extrusion temperature being 190-350 deg. C, the screw-spindle rotate speed being 20-120 r/min.

The invention provides a local grain anti-counterfeiting print, fiber grains are directly fabricated at a local region on the print, randomly distributed characteristic information of fiber is scanned, collected and stored in a database of a computer anti-counterfeiting inquiry system connected to a telephone network or/and the Internet for the masses to check truth; the print can be produced by utilizing fibreless grain materials including current standard paper, films and the like, can avoid specific paper making and film making, lightens the influence of the fiber on the aesthetic sensibility of the print, and can prevent a fake producer from continuing to use the print after uncovering the print.

The invention provides a multifunctional degradable black ground film containing humic acid. A component system of the ground film comprises the humic acid, sodium hydrate or potassium hydroxide, cross linker, film forming agent, water glass, microbiological fertilizer, pesticide, herbicide, etc. The ground film not only has common biological and light degradation functions, and but also can be suitable for different crops through regulating the category and the content of the film forming agent, the pesticide, the herbicide and the microbiological fertilizer according to the growth demand of different crops. The ground film is liquid or powder, wherein the powder ground film is convenient to transport, but becomes liquid when being melted by hot water and stirred during use; and the liquid ground film is used for field spraying and manufacturing films, so as to save labor and time.

The invention provides a method for welding a specially-thick high-strength bridge steel plate and belongs to the technical field of specially-thick plate welding. The test plate of the method adopts a symmetric narrow gap U-shaped groove form, is combinedly welded by using two efficient welding methods, namely gas shielded welding for priming and bottom filling, and double-wire submerged arc welding for continuous filling and finishing, so as to achieve the purposes of reducing filling level and giving full play to the efficient double-wire submerged arc welding and high automation degree. The method has strong operability, greatly improves the welding efficiency of the specially-thick bridge steel plate, and significantly reduces manpower cost. Furthermore, by selecting a proper welding sequence, the method solves the problem that the welding deformation of the specially-thick steel plate is hard to control.

The invention relates to a method for preparing porous nano carbon materials with biomass serving as a carbon source, particularly to a method for preparing nano carbon materials with biomass fasciculus vascularis luffae serving as the carbon source, and solves the problems that methods for preparing existing nano carbon materials are complex in technological process and higher in preparation cost and the prepared nano carbon materials are low in specific surface area and poorer in stored energy. The preparation method comprises the steps as follows: I, pretreatment of the fasciculus vascularis luffae; II, activation and drying of the fasciculus vascularis luffae; III, heat treatment under inert gases; IV, treatment with an acid leaching method. Compared with the existing nano carbon materials, the porous nano carbon materials prepared with the biomass fasciculus vascularis luffae serving as the carbon source have the advantages that the specific surface area is significantly increased, and the materials have good electrochemical performance; the method is simple in experimental process, and large-scale industrial production can be realized by the aid of biological resources.

The invention discloses a supported mesoporous carbon catalyzer RTCC-1 for low-temperature catalytic combustion of VOCs and a method for preparing the supported mesoporous carbon catalyzer RTCC-1. Due to the fact that the TSC-1 mesoporous carbon material which has the unique physicochemical property serves as the carrier of the catalyzer, the disadvantages of a traditional catalyzer for catalytic combustion that the active metal load is high and the cost is high are eliminated. The active components of the supported catalyzer, for low-temperature catalytic combustion, prepared with the carrier include one of the precious metal Pd and the precious metal Pt and one or more of copper oxide, cerium oxide, zirconium oxide, silicon oxide and aluminium oxide. The catalyzer has extremely high room-temperature catalytic combustion activity and enables complete catalytic combustion of the VOCs such as formaldehyde, methylbenzene and benzene to be achieved at room temperature or at even lower temperature.

The invention provides a secure mobile terminal electronic authentication method and system. The secure mobile terminal electronic authentication system comprises a secure element (SE) which is arranged in a mobile terminal and can store a key, and a trusted execution environment (TEE) which is arranged in the mobile terminal; a secure application applet which can run in the secure element is arranged in the secure element (SE); the secure application can generate a public-private key pair for electronic signature; and a private key is stored in the secure element (SE) and cannot be exported or duplicated. A secure redisplay trusted application (TA) is arranged in the trusted execution environment (TEE), so that transaction correctness can be confirmed artificially by a user and the transaction cannot be attacked by trojan horse in a rich execution environment (REE). The secure mobile terminal electronic authentication method and system greatly reduce high cost caused by additionally required production of hardware devices, solve the problem of using and carrying inconvenience for the user, are conducive to energy conservation and emission reduction, and save the social resources.

The invention relates to a synthesis method of polyformaldehyde dimethyl ether, which mainly solves the problem that the traditional method for synthesizing the polyformaldehyde dimethyl ether with trioxymethylene as a raw material has higher cost. In the invention, methanol, methylal and paraformaldehyde are used as raw materials, wherein the mass ratio of the methanol to the methylal to the paraformaldehyde is (0-10): (0-10): 1, the using amount of the methanol and the methylal cannot be zero simultaneously; and the raw materials are in contact and react with a catalyst to generate the polyformaldehyde dimethyl ether with a chemical formula of CH3O(CH2O)nCH3 under the condition that the reaction temperature is 70-200 DEG C and the reaction pressure is 0.2-6MPa, wherein the used catalyst is selected from at least one of SO4<2->/ZrO2, SO4<2->/Fe2O3, Cl<->/TiO2, Cl<->/Fe2O3, SO4<2->/Al2O3 and S2O8<2->/ZrO2. The synthesis method provided by the method better solves the problem of the traditional method and can be used in industrial production of the polyformaldehyde dimethyl ether.

The procedure of the recycling method is to cut the used lithium ion battery and take out the positive plate, process the positive plate with heating process to remove the bond between the aluminum foil and the positive pole material, by means of the mechanical or ultrasound shaking, the aluminum foil and the positive pole material are separated, process the positive pole material with the high-temperature handling, the content of the element in the positive pole material is analyzed. Mixing the lithium compound based on the supplement of the cobalt manganese or the nickel. After high-temperature and grinding processing, the positive pole material with excellent performance is recycled.

The invention relates to a decorative illuminating device, in particular to a flexible LED (light emitting diode) paster strip light which comprises a core wire, a plurality of flexible strip type circuit boards and a coating layer, wherein the core wire is provided with a groove internally and longitudinally, besides, at least two leads are embedded in the core wire, and the leads are arranged longitudinally and have the same length with the core wire; each circuit board is provided with at least one row of LED pasters, two ends of each circuit board are respectively provided with at least one lead wire, the lead wires are connected with the leads, which form a return circuit and provide electricity for the LED pasters on the circuit boards, and all the circuit boards are arranged in the groove, and gaps exist between the adjacent circuit boards in the length direction and are in an interrupted shape; and the coating layer is coated outside the core wire and the circuit boards. The flexible LED paster strip light provided by the invention can be connected with 220V commercial power, a low-voltage power supply is not required to be allocated, the production cost is lowered, and the length of the strip light can be manufactured for no less than 100 meters.

The invention relates to a polyformaldehyde dimethyl ether synthesis method which mainly solves the problems of difficult catalyst separation, low raw material conversion rate and poor product selectivity in the prior art. The technical scheme of the polyformaldehyde dimethyl ether synthesis method comprises the following steps: by taking methanol, methylal and polyformaldehyde as raw materials, under the conditions that the reaction temperature is 70-200 DEG C and the reaction pressure is 0.2-6 MPa, enabling the raw materials to be in contact with a catalyst, and reacting to generate polyformaldehyde dimethyl ether, wherein the weight ratio of the methanol, the methylal and the polyformaldehyde is (0-10):(0-10):1, and the amounts of the methanol and the methylal can not be 0 at the same time; the amount of the catalyst accounts for 0.1-5.0% of the weight of the raw materials; and the used catalyst comprises the following components in parts by weight: a) 30-80 parts of carrier, which is at least one selected from SBA-15, MCM-41 or MCM-22 molecular sieve, and b) 20-70 parts of solid super-strong acid carried thereon, which is at least one selected from SO4<2->/ZrO2, SO4<2->/Fe2O3, Cl<->/TiO2 or Cl<->/Fe2O3. Thus, the problems are well solved; and the polyformaldehyde dimethyl ether synthesis method can be used for industrial production of polyformaldehyde dimethyl ether.

The invention discloses a heterogeneous double-face fluorine-containing solar battery backboard comprising a fluorine film, an adhesive layer, a thin film layer, a primary coat and a coating layer connected in sequence. The fluorine film is a polyvinylidene fluoride film or a polyvinyl fluoride film; the adhesive layer is a polyurethane two-component adhesive; the thin film layer is a PET film; the primary coat is a polyurethane adhesive; and the coating layer is a coating paint formed by dispersing base resin and microparticles like polytetrafluoroethylene or polyvinylidene fluoride in a solvent. The invention also discloses a production technology thereof. The adhesive and a primary paint are applied on two surfaces of the thin film layer respectively, and the fluorine film and the coating layer are finally formed on the adhesive and the primary paint. The heterogeneous double-face fluorine-containing solar battery backboard combines a conventional compound type backboard with a coating type backboard, is low in production cost, alleviates aging speed, improves effective service life of the backboard, and simultaneously improves bonding intensity with an EVA backboard glue film.

The invention discloses an ultraviolet curing adhesive for a liquid crystal display television side frame. The ultraviolet curing adhesive consists of the following materials in parts by weight: 20-40 parts of prepared bifunctional polyurethane-acrylate prepolymer, 5-30 parts of self-prepared inert polyurethane prepolymer, 10-30 parts of nitrogen-containing functional monomers, 10-30 parts of single-functionality acrylate monomers, 1-5 parts of bifunctional acrylate monomers, 1-5 parts of a photoinitiator, 1-5 parts of gas-phase method silicon dioxide and 1-4 parts of a silane coupling agent. The invention further provides a preparation method and a using method of the ultraviolet curing adhesive. The curing adhesive, replacing existing silica gel bars or other rubber bars, can be applied in assembling of the liquid crystal display television side frame, so that production efficiency is improved, product quality is improved and cost is lowered.

The invention relates to the technical field of dies and discloses an automatic feeding continuous die of a basin stand. The automatic feeding continuous die of the basin stand comprises a first station, a second station, a third station, a fourth station, a fifth station, a sixth station, a seventh station, an eighth station, a ninth station and a tenth station. A groove punching die, a stretching die, a first shaping die, a lug hole punching die, a first flower punching die, a second flower punching die, a second shaping die, a hole punching die, a trimming die and an edge returning die are sequentially installed in the ten stations. The heights of the dies in the ten stations are equal when the continuous die is closed and opened. Groove punching, stretching, first shaping, lug hole punching, flower punching, second shaping, hole punching, trimming and edge returning are sequentially carried on materials conveyed into the continuous die with the automatic feeding continuous die. Thus, a basin stand product is manufactured, the production efficiency is greatly improved and the production cost is reduced.

The present invention relates to a nano-grade anti-bacterial super-fine fibre material and its production method. In particular, it relates to a method for producing nano-grade anti-bacterial super-fine fibre material by adopting melt- spinning process. The invented nano-grade anti-bacterial super-fine fibre material is formed from (by wt%) 98%-99.9% of high-molecular super-fine fibre and 0.1%-2% of nano-grade anti-bacterial agent. Besides, said invention also provides the concrete steps of its production method.

The invention belongs to the technical field of porous ceramics, and in particular relates to a porous ceramic prepared from red mud and coal ash, and a preparation method of the porous ceramic. The porous ceramic comprises the following components in percentage by weight: 40-70% of red mud, 5-40% of coal ash, 10-30% of a pore-forming agent, 1-5% of an additive, and water which is 10-20% of the total weight of the materials, and the red mud, the coal ash, the pore-forming agent, the additive and the water are uniformly mixed according to a ratio, and further formed, dried and roasted so as to prepare the porous ceramic material. The porous ceramic is prepared by utilizing the red mud and the coal ash in a composite manner, and the process is simple and the cost is low, but also a great deal of industrial waste can be consumed, and the environmental-friendliness is facilitated. Therefore, a porous ceramic material with high porosity, high bending resistance and opened pore structure can be prepared by using the method.

The invention discloses a feed additive by mixedly fermenting shrimp heads and vegetable feed proteins and a processing method thereof. The method comprises the following steps of: performing squeezing and crushing, pulping with water, and filtration and separation on the shrimp heads to separate out shrimp shells so as to obtain a shrimp paste raw material; mixing the shrimp paste and the vegetable feed proteins according to a proportion, adding bacteria for solid fermentation, and drying and crushing to prepare fermented feed protein powder; and drying the separated shrimp shells to prepare raw materials of chitosan and shrimp shell powder. The method has the advantages of simple process, small equipment investment and low cost; and the feed additive has the advantages of full aroma of the fermented feed protein powder, good palatability, high utilization rate of proteins, rich beneficial functional nutrients such as astaxanthin, small peptide, probiotics and the like, wide application to aquatic and livestock and poultry feeds, improvement of survival rate, good animal growth effect, good feed attraction to aquatic animals, capacity of replacing fish meal in the livestock and poultry feeds, capacity of greatly replacing fish meal in high-grade aquatic feeds, remarkable reduction of feed cost, contribution to environmental protection, power saving, efficiency improvement, and remarkable social and economic benefits.

The invention belongs to the technical field of sewage treating agents and particularly relates to a heavy metal sewage treating agent and a preparation method thereof. The heavy metal sewage treating agent is prepared from the following raw materials in parts by weight: 0.5-2 parts of amino trimethylene phosphonic acid, 1-5 parts of ethylene glycol tetraacetic acid, 10-20 parts of sodium polyacrylate, 5-15 parts of diethylene triaminepentaacetic acid pentasodium salt, 10-20 parts of polyaspartic acid, 20-30 parts of starch xanthate, 3-6 parts of graphene nanolayer/MnO2 compounds, 15-20 parts of crosslinked rectorite, 10-30 parts of polyaluminum chloride, 5-10 parts of chitosan-graphene composite and the balance of deionized water. The heavy metal sewage treating agent provided by the invention is high in purity, nontoxic, free of influence to operating staff and capable of ensuring no secondary pollution and other problems after water is treated.

The invention relates to a comprehensive utilization method of waste and old cathode carbon blocks of an aluminium electrolytic bath, which is characterized in that after being treated by sorting, crushing, pulverizing, ash removing and drying, the waste and old cathode carbon blocks are used as raw materials for producing blast furnace carbon blocks, electric furnace carbon blocks, electrolytic bath cathode carbon blocks, electrolytic bath side carbon blocks, electrolytic carbon blocks, self-roasting carbon blocks or carbon paste. In the comprehensive utilization method, the recycling of dangerous waste and the cathode carbon block different for being practically disposed and applied, the harmless treatment and comprehensive utilization of the waste and old cathode carbon blocks are realized, the waste becomes valuable, simultaneously the use of anthracite, metallurgical coke, tar coke and petroleum coke is reduced, the resource is saved and the production cost is reduced.

The invention discloses a urea-formaldehyde foam plastic heat-insulating board and its preparing process, wherein the board comprises urea formaldehyde resin, sodium dodecyl sulfate, phosphoric acid, oxalic acid, phenol, urea, magnesium chloride and water by a weight ratio of 50-75:0.1-1.5:0.05-0.5:0.1-0.5:0.01-0.15:0.05-1:0.05- 0.5:22-48.

The invention relates to a method for cultivating coprinus comatua by utilizing fungus dregs in the edible fungus production field, which is characterized by utilizing the leftovers, namely fungus dregs, of the edible fungi instead of cottonseed hulls to cultivate the coprinus comatua, utilizing the method of biological fermentation to treat the fungus dregs and adding bran and other nutrients toform culture media, and effectively realizing cultivation of the coprinus comatua through the process flows of bagging, sterilizing, inoculating, hypha fermenting, cultivating, bag removing, soil covering, fruiting and harvesting, etc., wherein, the leftovers of the edible fungi are used for cultivating oyster mushrooms and needle mushrooms, etc. The method not only realizes resource of the organic wastes and reduces pollution of the organic wastes on the environment by developing and utilizing the leftovers of the edible fungi and conforms to the requirement on striving to develop circular economy encouraged by the state, but also greatly reduces the usage amount of the cottonseed hulls and other substances for cultivation, effectively lowers the production cost of the coprinus comatua, increases the cultivation benefits and ensures the biological conversion ratio to be more than 80%. The method utilizes the wastes and attains two objectives, thus being suitable for popularization andapplication in the rural areas.

The present invention relates to a high-purity zirconium oxychloride production method, specifically to a method for producing high-purity zirconium oxychloride and co-producing silicon tetrachloride through a zircon sand boiling chlorination method. The method comprises: adopting zircon sand, a reducing agent and a stabilizer, introducing chlorine gas into a chlorination furnace at a gas velocity of 0.07-0.12 m/s, carrying out a boiling chlorination reaction at a temperature of 1150-1200 DEG C to generate zirconium tetrachloride and silicon tetrachloride, carrying out gas-solid separation, and carrying out hydrolysis and purification on the separated solid and carrying out evaporation, crystallization and separation on the zirconium oxychloride solution so as to obtain the high-purity zirconium oxychloride and the co-produced product silicon tetrachloride, wherein a mass ratio of the zircon sand to the reducing agent to the stabilizer to the chlorine gas is 0.9-1.1:0.2-0.3:0.3-0.4:2.7-2.8. The product produced through the method of the present invention has characteristics of good quality, low production cost, and no polluting.

This invention discloses a method for synthesizing multi-level porous ZSM-5 zeolite. The method comprises: soaking monolithic silica gel column in sucrose solution, drying, polymerizing, carbonizing to obtain C-Si composite, wetting the C-Si composite with a mixed solution of Al source, inorganic alkali, organic amine and water, crystallizing, and recovering the product. The obtained ZSM-5 zeolite has multi-level pores, including micrometer-scale macropores, mesopores and micropores. The macropores can shorten the diffusion distances of reactive molecules, reduce the pressure decrease of the equipment, raise the unit processing capacity of the equipment, and make the adjustment and control of the product selectivity easier. The mesopores can provide large inner specific surface area, which is meaningful to the catalytic reaction of macromolecules.

The invention discloses a rapid grafting propagation method for commercial production of paeonia rockii, and relates to the fields of grafting and propagation of flowers. The method comprises the following steps: establishing a fine variety scion collecting garden, establishing a rootstock production garden, preparing before grafting, selecting rootstocks, collecting scions, sterilizing the scions, sampling inspection, grafting, storing in sand, managing the sand storage, taking out of a greenhouse, planting and the like. The method helps determine a principle for selecting a grafting time based on temperature, thus improving the survival rate of the rare species (the paeonia rockii) from original 35% to more than 75%, causing large-scale propagation of the paeonia rockii to be possible, and providing a technical guarantee for the commercial production. The method helps realize the desire that the paeonia rockii in Gansu blossoms in any cold areas, and also meets the requirements of people from different areas for admiring rare species.

The invention provides an obstacle detection alarm system and method. An interest interval is set through an image processing technology to further judge whether a horizontal line signal exists, and the obstacle of certain height is detected according to the detection of obstacle profile and estimation of the distance between obstacles at a ground interval; if the system detects that the obstacleexists, the system can provide an timely alarm and display the obstacle distance through an alarm device; and an environment picture can be displayed by use of an image type obstacle detection alarm system in combination of the alarm device so that a driver can directly and clearly see the relative position relationship of the environment and the convenience and safety are enhanced.

The invention provides a method for producing aerated concrete with refuse incinerator slag. The method is characterized in that the following raw materials are added by mass percent: 30-60% of fly ash, quartz sand and/or granulated blast furnace slag, 5-15% of Portland cement, 15-25% quicklime, 3-5% of dihydrate gypsum and 10-40% (preferably 9.5-39%) of refuse incinerator slag. Compared with the prior art, the method has the following advantages: (1) the refuse incinerator slag is greatly utilized to produce aerated concrete, so that the method belongs to the resource utilization technology and can substantially reduce the high treatment costs; and (2) the metallic aluminium is fully utilized.

The invention relates to a smelting method of the low-carbon aluminium killed steel with a low silicon content, belonging to the steelmaking technical field of the metallurgy industry. The technical scheme in the invention is as follows: before blast furnace vanadium-containing molten iron enters the steelmaking process, the processes of vanadium extraction and silicon removal are performed, the steelmaking process adopts the semi-steel smelting process, low-silicon pre-melted composite refining slag is added in molten iron during the slag-stopping tapping process, the deoxidizing process andthe alloying process for pre-deoxidation; after molten iron enters the ladle furnace (LF) refining process, the conventional mode for preparing white slag through electrode heating is not adopted, white slag is rapidly prepared by covering a cover for heat preservation and using aluminum powder as a deoxidizer in the reducing atmosphere of argon stirring; then calcium treatment and argon soft blowing are performed, the thermodynamic and dynamical conditions of the silicon kickback of molten steel are inhibited under the premise of ensuring the refining quality; and after the argon soft blowing of molten steel is completed, molten steel enters the continuous casting process. By adopting the method, the Si element qualification rate of the low-silicon and low-carbon aluminium killed steel is up to more than 98%; and as the refining electrode heating process is not adopted, the method is characterized by low energy consumption, environmental protection and low production cost.

The invention provides a comprehensive method for processing laterite nickel ore to produce electrolytic nickel through the full wet process. The invention relates to a method for leaching low-grade laterite nickel ore at atmospheric pressure through sulfuric acid, belonging to the technical field of wet-process metallurgy. The comprehensive method comprises the following steps of: grinding the laterite nickel ore, leaching the laterite nickel ore by using sulfuric acid with acidity of 150-350 g/L under the acid-ore mass ratio of 0.3-1.2:1 at atmospheric pressure, adding a neutralizing agent to adjust the pH value to 3.0 and neutralize the precipitate to remove iron, adding the neutralizing agent into the mother liquid to adjust the pH value to 6.0 and neutralize and remove aluminum and silicon, continuing adding the neutralizing agent into the filtered nickel sulfate solution to adjust the pH value to 9.0 and precipitate nickel hydroxide, redissolving, purifying and electrolyzing the intermediate product of nickel hydroxide to produce the electrolytic nickel product, adding calcium hydroxide into the nickel-precipitated magnesium sulfate solution to neutralize the precipitate, and carbonizing and separating magnesium and calcium to obtain magnesium carbonate. The invention overcomes the defects of long flow, great magniferous sewage amount and difficult treatment in the prior art, magnesium is developed into a product, the production sewage can be directly discharged or recycled, and meanwhile, part of recovered magnesium can be circularly returned to the flow as the neutralizing agent.

The invention discloses a power-interrupting-free shifting speed changing box of an electric vehicle and a shifting control method of the power-interrupting-free shifting speed changing box. The speed changing box comprises a first gear pair mechanism, a second gear pair mechanism, a disc clutch and a shifting control mechanism, in the shifting control mechanism, a first gear overrunning clutch and a control overrunning clutch are mounted in corresponding gears, a control friction plate is fixed on a roller retainer and a roller shifting fork of the first gear overrunning clutch, a wave spring is mounted in an annular groove in an end surface of a second control gear, and a control pressure plate is axially pre-tightened through the wave spring, is clamped in the annular groove in the end surface of the second control gear and rotates along with the second control gear. By the shifting control method of the speed changing box, first gear engaging, second gear engaging and gear reversing actions can be realized and do not intervene. By the power-interrupting-free shifting speed changing box of the electric vehicle, the problem of interrupting of shifting power of the traditional AMT is solved, and a smooth speed ratio switching process can be realized. In addition, by the structure, a shifting fork and a shifting fork shaft are further omitted, the system structure is greatly simplified, and the total weight of a transmission is reduced.