410results about How to "Improve production conditions" patented technology

The invention relates to a light-weight insulating brick produced by adopting pulverized fuel ash, furnace slag, building waste and stalk and a production method thereof. The materials of pulverized fuel ash, furnace slag, building waste, stalk, lime power, cement, gypsum, Na2SO4 and water are prepared according to the following mass ratio and are then mixed, molded and cured to product the light-weight insulating brick; the light-weight insulating brick comprises the following weight percentage of all ingredients of the raw materials: 36-55 parts of pulverized fuel ash, 6-20 parts of furnace slag, 26-35 parts of building waste, 3-15 parts of stalk, 12-15 parts of carbide slag, 8-14 parts of cement, 2-5 parts of gypsum, 1-3 parts of Na2SO4 and proper amounts of water. The method utilizes the industrial and agricultural wastes such as the pulverized fuel ash, furnace slag, building waste, stalk and so on to produce the light-weight insulating brick, and the brick is light in weight, heat-insulating, has high strength and meets the quality standard; furthermore, the production technique is simple and no wastewater, waste residue or exhaust gases is discharged, so the invention is energy-saving, pollution-free, low-cost and has good production condition.

The invention discloses a method for culturing pleurotus eryngii. The method comprises the following steps of: selecting saw powder of alfalfa growing in organic soil, wild nuts in mountain and wild trees in mountain, mixing, fermenting, sterilizing, and inoculating the sterilized fermentation product to pleurotus eryngii hypha to culture to obtain mature pleurotus eryngii. By adopting the alfalfa growing in the organic soil, the problem that the alfalfa growing in common soil contains chemical fertilizer, pesticide residue and the like is solved, and harm of chemicals to a human body is solved; meanwhile, because the alfalfa is selected as one of the culture medium materials for culturing the pleurotus eryngii, the germination rate of the pleurotus eryngii can be increased by using the alfalfa to culture the pleurotus eryngii; and because the alfalfa is used as one of the culture medium materials, the growth speed of hypha can be increased, so that the production efficiency of the pleurotus eryngii is increased, and the economic benefit of the pleurotus eryngii is increased. The method has the advantages of achieving the best sterilization effect, saving the sterilization time, being simple and easy in material selection, saving a large amount of labor, reducing the production cost and increasing the economic benefit.

This invention relates to PVC elastomer formula for flame retarding mine use sofe cable and its processing technique. The formula includes the following contents(weight share): high polymerized PVC 100, low polymerized PVC 10-50, the plasticizer 60-120, tri-salt lead sulfate 2-5, disalt lead phosphate 2-5, disalt lead stearate 0.5-1.5 barium stearate 0.5-1.0, inflaming retarding agent 10-20, assistant retarding agent 2-7, antioxidant 0.1-1.0, bulking agent 10-30. The processing technique is as follows: match every group according to weight ratio and then past them; knead the pasting and powder under 90-110deg.C for 4-10 minutes, plasticize the kneaded mixture and particlize the processed rubber material and storage them. The elasticity of PVC of this invention can arrive the elasticity of rubber, and its electrical performance, hot endurance, inflaming retarding performance and tensile and breaking elongation are up to the standards.

This invention discloses environmentally friendly UV-curing tin plate ink, which comprises: acrylic acid prepolymer 50-70 wt.%, acrylic acid monomer 10-15 wt.%, initiator 5-10 wt.%, pigment 10-25 wt.%, dispersant and other additives 5-10 wt.%. The UV-curing tin plate ink is a color printing ink used on metal and cured by UV. The UV-curing tin plate ink has such advantages as low energy consumption, rapid curing, no VOC discharge, high efficiency, high safety and no pollution.

The invention relates to sepiolite-loaded nickel-based catalyst modified by two metals of potassium and lanthanum, as well as a preparation method and application of the sepiolite-loaded nickel-based catalyst to adiponitrile hydrogenation. The preparation method comprises the following steps: taking adiponitrile as a raw material and ethanol as a solvent, and taking sepiolite as a carrier of a catalyst to prepare a nickel-based sepiolite-loaded catalyst modified by potassium and lanthanum as additives. The preparation process of the catalyst comprises acid treatment on sepiolite, and steeping, drying, roasting and reducing of sepiolite after acid treatment. During the adiponitrile hydrogenation process, the reaction pressure is 1-2 MPa, and the reaction temperature is 100-120 DEG C. The catalyst has relatively high activity and 6-aminocapronitrile and hexamethylendiamine selectivity under relatively mild reaction conditions, the raw material of sepiolite is cheap and easy to obtain, and low in cost, and the catalyst is simple in preparation method, and has a good application prospect.

The invention relates to an industrial production method for semi-crystal poly(aromatic ether nitrile), which belongs to the field of polymer material. The method comprises the following steps: 2, 6-dichloro benzonitrile and hydroquinone are taken as raw materials; anhydrous potassium carbonate is taken as a catalyst; in the presence of a solvent and a dehydrating agent, the raw materials and the catalyst react under atmospheric pressure to obtain the poly(aromatic ether nitrile) homopolymer with low molecular weight and regular chain segments; and then the molecular weight of polymer is increased through pressurization, so as to obtain the semi-crystal poly(aromatic ether nitrile) polymer with high molecular weight. Due to the increase of crystallinity and molecular weight, the mechanical properties and heat resistance of the semi-crystal poly(aromatic ether nitrile) polymer are obviously improved.

The invention belongs to the field of functional foods, in particular relates to a method for producing a probiotic functional beverage and probiotic functional food through buckwheat fermentation and discloses a method for preparing a probiotic liquid state fermentation beverage by using a lot of probiotic mixed strains liquid state fermentation buckwheat and a method for preparing probiotic food by using a lot of probiotic mixed strains solid state fermentation buckwheat. The preparation process is simple; through lactobacillus fementation or non-fermentation, buckwheat, as cereal foods, has antioxidant, antihypertensive and hypoglycemic effects and preventive effects on cardiovascular and cerebrovascular diseases to some extent, and can coordinate intestinal tracts at the same time, thus the probiotic fermentation beverage and the solid state fermentation food can satisfy the needs of different consumer groups.

The invention discloses a gas protection solid welding wire for 1000 MPa high-strength steel welding and preparing and welding methods of the gas protection solid welding wire. Chemical ingredients of the welding wire include, by weight, 0.07-0.13 part of C, 0.3-0.5 part of Si, 1.8-2.3 parts of Mn, 2.7-3.2 parts of Ni, 0.3-1.2 parts of Cr, 0.4-0.85 part of Mo, 0.01-0.1 part of Ti, 0.01-0.03 part of Al, 0.008 part or below of P, 0.005-0.010 part of S, 0.3 part or below of Cu, 0.01-0.035 part of Nb and the balance Fe. The welding wire can replace an imported welding wire, the construction cost of high-strength steel for large hydropower stations, water pumping and energy storage power stations and the like can be remarkably reduced, and remarkable economic benefits and social benefits are achieved.

The invention discloses a preparation method of a Ni-based catalyst modified by an aid Pt supported by multi-wall carbon nanotubes as a carrier and application. The preparation method comprises the following steps: firstly, performing acid modification on multi-wall carbon nanotubes by using nitro-sulfuric acid; by taking the multi-wall carbon nanotubes as a carrier, putting precursor salts of platinum and nickel according to the multi-wall carbon nanotubes to hexachloroplatinic acid hexahydrate and nickel nitrate hexahydrate according to a mass ratio of (5-10):(0.1-0.5):(5-10); further addingdeionized water, performing ultrasonic stirring, drying, and performing roasting and reduction, thereby finally obtaining an expected catalyst Pt-Ni/MWCNT. The catalyst prepared by using the method is low in cost, economic and effective, good in universality, good in environmental-friendliness, free of equipment corrosion and good in circulation property, and is relatively high in activity and relatively high in p-aminophenol selectivity under a relative gentle reaction condition in a process that p-aminophenol is prepared from nitrobenzene through one-step hydrogenation rearrangement, the production conditions can be improved, the production cost is reduced, and the product quality is improved.

The invention discloses a carbon-free ladle brick and a preparation method thereof. The carbon-free ladle brick is prepared by using bauxite chamotte, a corundum raw material, magnesium oxide and alumina micro powder as main raw materials, adding iron oxide, a magnesium chloride solution, sodium hexametaphosphate and canary dextrin, mixing the above-mentioned materials by using special procedures, storing an obtained mixed for 30 min, carrying out compression molding and drying the mixture at a temperature of 200 DEG C for 24 h. According to the invention, iron oxide and alumina micro powder are enabled to exist in gaps between aggregate and powder and form hercynite with a low thermal expansion coefficient at a medium-high temperature, and no excess iron oxide enters into a matrix, which enables the ladle brick to have good high temperature stability and anti-stripping performance; therefore, the problem that molten steel carburetting caused by high temperature melting loss of a refractory brick influences smelting quality is overcome, and the prepared carbon-free ladle brick has excellent performances of high strength, washing resistance, a long service life, etc.

The invention discloses a process for casting heat-resistant steel or wear-resistant alloy steel by evaporative pattern casting (EPC). The process comprises the following steps of: purchasing raw materials, blending the materials, performing steelmaking, manufacturing a pattern, preparing a coating, brushing the coating, drying, pouring, testing, thermally processing, polishing, and packaging and warehousing. The invention further provides ingredients of the raw materials. The ingredients respectively are 0.3-0.8% of copper, 0.1-0.3% of molybdenum and 0.2-0.5% of chromium; molybdenum is added together with waste steel in a melting process; and copper is added together with molten iron into ladles in a tapping process. The invention also provides a preparation method of the coating. The coating comprises the following components in percentages by weight: 50-80% of fireproof material, 0.5-4% of adhesive, 1-3% of suspending agent, 0.5-3% of sodium dihydrogen phosphate and the balance of water, wherein the fireproof material is composed of bauxite, alundum powder, graphite powder or mullite powder. By adopting the method disclosed by the invention, effects of low cost, short processing period and good quality are achieved, the process of the method is reasonable, and the preparation effects of the raw materials and the coating are good, so the method is applicable to mass production and large-scale production.

The invention belongs to production of track boards, and particularly relates to a pre-tensioning method prestressed concrete track board production line maintaining system and application thereof. The maintaining system comprises a steam-maintaining chamber which is arranged between working tracks matched with a mold and provided with an automatic door, a nozzle which is arranged in the steam-maintaining chamber and connected with a constant temperature water supply device, a temperature detection device and a temperature control device, wherein the temperature detection device and the temperature control device are connected with a center control device; a walking track and a transfer pulling device used for pulling a mold are arranged on the ground in the steam-maintaining chamber; thewalking track is connected with the working tracks outside the steam-maintaining chamber; the temperature and humidity detection device comprises a core temperature and humidity sensor, a surface layer temperature and humidity sensor and an environment temperature and humidity sensor; and the temperature control device comprises a steam supply device and an air cooling device. The technical problems that in the prior art, maintaining measures are simplex, and existing standard requirements cannot be met are effectively solved, and the maintaining system has the advantages that the existing standard requirements are well met, high-efficiency assembly line production can be achieved, and automatic control is achieved easily.

The invention belongs to the steel metallurgic technical field and in particular relates to a hot metal pretreatment magnesium desulfurization method and the adopted powder, wherein, the powder comprises magnesium metal powder and is characterized in that the powder also comprises premelting magnesium desulfurization accelerating agent which is made from blast furnace slag and lime through production processes such as raw material selection, impurity removal and drying, mix crushing and passivating treatment; by means of the prior blowing equipment, the magnesium metal powder and the premelting magnesium desulfurization accelerating agent are mixed according to a certain proportion or are jointly injected into hot metal for desulfurization. The method is simple and feasible and the made powder can replace pure lime powder, therefore, the invention has the advantages of energy saving, high efficiency and environmental protection; moreover, the method can greatly reduce the pretreatment cost of hot metal and increases hot metal yield.

The invention relates to a method for extracting coconut oil and byproducts from fresh coconut pulp, which comprises the following steps: peeling and crushing shells of coconuts to obtain fresh whitecoconut pulp, crushing the fresh white coconut pulp and grinding the fresh white coconut pulp and buffer solution, then adding enzyme into the mixture to carry out extraction, filter-pressing the extract, separating dietary coconut fibers and the filtrate, centrifugating the filtrate, and separating emulsified coconut oil and coconut protein solution so as to obtain the coconut oil and coconut protein powder respectively. The coconut oil processed by the method has fresh character and can be directly eaten or applied, and the byproducts comprising the dietary coconut fibers and the coconut protein powder can be used as food accessories or additives, so the method improves the utilization level of the coconut pulp and the extraction rate of the coconut oil, and has high economic benefit andgood application prospect.