93results about How to "Caking" patented technology

The invention discloses an ABC superfine dry powder anti-reburning fire extinguishing agent. The fire extinguishing agent comprises the following components in percentage by weight: 85-90% of monoammonium phosphate, 1-2% of mica, 2.9-8.8% of silicon dioxide, 2-3% of ammonium sulfate, 2-3% of hydrogen-containing silicone oil, and 0.1-0.2% of fluorocarbon. The fire extinguishing agent is fast in fire extinguishing response, is good in powder diffusing performance, is easily suspended in burning space to form stable aerosol, is fast in heated decomposition, is quick in endothermic reaction, has strong capacity of capturing free radicals, has largely improved fire extinguishing efficiency. Moreover, the fire extinguishing agent is good in water repellency, is strong in flowing property, is strong in electrical insulating property and caking resistance, is low in corrosion, and is not easy to cake. The fire extinguishing agent can be preserved for a long time in a sealed container filled with nitrogen and argon. Because silicon dioxide, mica and ammonium sulfate are low in cost and can be easily purchased, the fire extinguishing agent can be conveniently produced in large scale. The fire extinguishing agent is simple in preparation process, causes no harm to humans, animals and the environment, and after the fire is extinguished, the environment is easy to clean and corrosion of equipment is low.

The invention discloses a casting technology of a wear-resistant and low-porosity steel casting. The casting technology takes silica sand, bentonite, an additive and water as molding materials, and comprises the steps of preparing a casting mould by mixing the molding materials; drying the prepared casting mould with hot air at the temperature of 130-140 DEG C; injecting the dissolved metallic solution into the casting mould, and pouring a semi-finished product; carrying out heat treatment on the semi-finished product, polishing and machining to obtain the finished product; checking and putting into a storage. After the casting technology is adopted, the wear resistance and the toughness of the casting are greatly improved, the pores in the casting are reduced, and the service life of the casting is prolonged; furthermore, the casting technology is simple in operation and low in cost.

This invention describes a process for the recovery and recycle of industrial waste solids, especially the salt-alkali separation and recycle of the waste salt-alkali solids from the manufacturing of hydrated nitriles. This invention uses water, mother liquid and sodium bicarbonate to wash the waste salt-alkali solids from the manufacturing of hydrated nitriles, so that Na2CO3 and NaOH in the waste salt-alkali solids are washed into the solution. The washing solution is then cooled to 0-5deg.C, and filtrated and separated to obtain solid sodium carbonate decahydrate, which can be commercialized after washing. The mother liquid, after separating the solid alkali, is directed to the next process for washing the waste salt-alkali solids without discharge. During the circulatory washing of the waste salt-alkali solids, the table salt keeps in the solid state. After centrifugal separation, the table salt containing 3% of alkali can be obtained and used for sodium carbonate industry. The said table salt NaCl, after washing and separation to remove a small amount of hydrazine and amine, can be used for chlorine-alkali industry. Chlorine Cl2 and sodium hydroxide NaOH are raw materials for sodium hypochlorite NaClO, which is a raw material for producing hydrazine hydrate. In addition, sodium hydroxide is directly involved in the reaction for producing hydrazine hydrate N2H4íñH2O, thus constituting an internal recycling system of a manufacturing plant without discharging, which not only is environmentally friendly but also reduces transportation load and production cost. This invention describes a rational process for large-scale hydrazine hydrate manufacturing plants.

The invention relates to an organic fertilizer with the effect of controlling crop diseases and pests and a production method or the organic fertilizer. The organic fertilizer is prepared from the following raw materials in parts by weight: 25-30 parts of leaves of shrubby baeckea, 18-22 parts of cigarette powder, 10-15 parts of tea bran, 3-5 parts of derris trifoliata herbs or roots, 20-25 parts of filter mud of sugarcane, 3-7 parts of quicklime powder, 15-25 parts of yeast liquid, 0.4-0.7 part of a bacillus subtilis preparation and 0.4-0.7 part of a bacillus mucilaginosus preparation. The organic fertilizer with the effect of controlling crop diseases and pests produced by the method has various functions of controlling insects, controlling diseases, promoting growth, regulating, improving stress resistance of crops, increasing sugar agricultural products, improving soil and the like for crop planting. By applying the organic fertilizer, soil pests can be controlled, soil-borne diseases are prevented, nutrients can be balanced, soil environment is improved, crop growth is promoted, crop yield and quality are improved, and the purpose of increasing both production and income is achieved.

The invention relates to a mixed product comprising beta-glucan, which is prepared by the following raw materials in ratio by weight: 7.5-80% of beta-glucan, 6-20% of cocoa butter, 0-30% of supermicro carrot powder, 0-30% of supermicro highland barley, and 0-40% of erythritol. Meanwhile, the invention further discloses a preparation method of the product. In the mixed product, beta-glucan can be quickly dissolved in daily drinking water. The mixed product has a certain healthcare effect, is convenient to have and good in taste, and can meet the recommended dose of beta-glucan to reach the health keeping effect.

The invention relates to a production process of instant maize germ powder. The instant maize germ powder is prepared through raw material preprocessing, beating, enzymolysis, enzyme inactivation, colloid milling, sterilization, high-pressure homogenization and spray drying by taking maize germ meal as a raw material; the enzymolysis is carried out by adding medium-temperature alpha-amylase accounting for 0.2%-0.4% of the dry weight of the maize germ meal, and the starch hydrolysis DE value (Dextrose Equivalent value) of maize germ meal slurry which is subjected to enzymolysis is controlled between 18% and 22%; the prepared homogenized maize germ meal slurry achieves the easiness for the spray drying, and a finished product does not absorb moisture, so that the dissolution stability of the maize germ powder is enhanced, the deposition has small possibility of appearing in the dissolving process, and the maize germ powder is not caked and agglomerated when being dissolved in water; and the additional value of maize germ meal is increased. The instant maize germ powder obtained through the method disclosed by the invention achieves the protein content more than 23%, is in a faint yellow color and is fast in dissolution; and the dissolved instant maize germ powder is uniform in state and achieves the product dissolution time less than 27 seconds without any unpleasant odor.

The invention relates to golden buckwheat rhizome extract and a pharmaceutical preparation containing same. The golden buckwheat rhizome extract is prepared through the following methods: golden buckwheat rhizome is taken, pulverized and then is extracted by circulated ethanol for four times, mass of each extraction solvent is respectively 6 times, 4 times, 3 times and twice of that of the golden buckwheat rhizome particles, extraction time is sequentially 90 minutes, 60 minutes, 60 minutes and 30 minutes, extracted liquid is combined and filtered, and the filtered liquid is decompressed and concentrated; water which is 20 times of the plaster is added to immerse the plaster to be mixed and suspended and then to be statically placed for one night; the upper clear liquid is chromatographically separated by macroporous adsorbent resin after being filtered; then the liquid is washed by water until the outflow liquid is colorless, then the liquid is eluted by 80% ethanol until the elution liquid is free from being reacted with ferric trichloride test solution, the elution liquid is collected, decompressed and concentrated and then is dried in an atomizing way, so the golden buckwheat rhizome extract is obtained. The golden buckwheat rhizome extract has higher content of active ingredients, the preparation has better characteristics, and the drug action is better.

The invention discloses conductive microfiber synthetic leather and a production method thereof. The production method comprises the following steps: (1) conductive color masterbatch is obtained from carbon black, a carbon nano tube, graphene, a dispersing agent, a heat stabilizer, an antioxidant and nylon through mixed granulation; (2) the conductive color masterbatch obtained in the step (1) is mixed with nylon 6 for melt spinning, and the conductive microfiber synthetic leather is prepared. A conductive material is dispersed into the color masterbatch and uniformly dispersed into fibers, so that the product performance is stable, base fabric surface is not affected, preparation steps are simple, the problems of non-uniform conductivity and poor durability are solved effectively, and the durability of the original product is improved greatly.

The present invention relates to a desulfurization agent preparation method, particular to a solid desulfurization agent preparation method, which comprises: 1, taking main components such as 20% by weight of triethanolamine, 10% by weight of calcium carbonate, 10% by weight of ferric hydroxide, 20% by weight of ammonium carbonate, 20% by weight of aniline carbonate, and 20% by weight of 2-ethyl toluenediamine; 2, mixing the effective component taken in the step 1 and alumina according to a ratio of 1:1; 3, adding an adhesive during the mixing process in the step 2, and adding an appropriate amount of isopentane; and 4, under an anaerobic condition, at a temperature of 180 DEG C, heating the obtained mixture for 30 min. According to the present invention, the solid desulfurization agent has characteristics of high product yield, good desulfurization effect, good product appearance, simple operation, no waste, and environmental protection.

The invention discloses an L-lactic acid fermentation method by using polyvinyl alcohol to solidify rhizopus oryzae. The method comprises the following steps: heating polyvinyl alcohol and sodium alginate in a boiling water bath to be jointly dissolved; mixing with a rhizopus oryzae spore suspension; using an injector to drip the mixed solution to a saturated boric acid solution containing calcium chloride while using a magnetic stirrer to continuously stir so that particles are spherical and good immobilized particles can be hardened at a low temperature; and then, treating by a monobasic sodium phosphate solution and washing with distilled water after solidified cells are propagated and grow so as to be used for the batch fermentation and the repetitive batch fermentation of the L-lactic acid. The improved L-lactic acid fermentation method by using the polyvinyl alcohol to solidify the rhizopus oryzae overcomes the defects of spherical carriers and poor permeability of the prior polyvinyl alcohol and has the advantages of great mechanism strength, large acid production amount, high acid production speed and good repetitive use effect.

The invention discloses a manufacturing method of urea-sulfur based composite fertilizer, which comprises the following steps: (1) reacting sulfuric acid and phosphor according to certain proportion; obtaining acidolyzed slurry; (2) adding quantitative aquacare and slurry into transmitting reactor; obtaining the transmitted slurry; (3) solidifying the product; obtaining the product. The invention adopts phosphor ore as phosphorous source, which saves investing cost effectively.

The invention provides a preparation method of polybutyrolactam through anionic ring-opening polymerization. The preparation method comprises potassium tert-butoxide activation, carbon dioxide triggering, and addition of paraffin oil and sodium dodecyl sulfate. 2-pyrrolidone is taken as the primary raw material, after potassium tert-butoxide activation, carbon dioxide triggering, and addition of paraffin oil and sodium dodecyl sulfate, polymerization is performed, then n-hexane is added and stirred, and suction filtration is carried out to obtain polybutyrolactam. The preparation method has the advantages that the polymerization speed is slow and controllable, the polymer discharge is convenient, the molecular weight of polymers is high, and the requirements of massive production can be met.

The invention discloses a low-compressive creep and high temperature-resistant ethylene propylene rubber material and a preparation method thereof, and belongs to the technical field of rubber. The rubber material comprises the following components in parts by weight: 100 parts of raw ethylene propylene rubber, 5 parts of zinc oxide, 1.2 parts of stearic acid, 2 parts of an antiager 445, 4-8 partsof Ative CHO, 45-55 parts of fast extruding carbon black N550, 5-10 parts of a softening and plasticizing agent S2550, 1.5-2.0 parts of a crosslinking auxiliary agent N308E and 6.0-8.0 parts of a vulcanizing agent GF-45. The rubber material has excellent high temperature resistance, has good physical properties after aging at 175 DEG C, has a significant advantage of low compression set, and meets performance requirements of German Volkswagen PV3330 and PV3307 standards on the compression set.

The invention belongs to the technical field of lysine production, and particularly relates to an extraction technology of 98.5% lysine hydrochloride. The extraction technology of 98.5% lysine hydrochloride comprises the following steps: (1) ceramic membrane separation; (2) continuous ion exchange; (3) acid concentration; (4) crystallization; (5) baking, namely baking wet crystals obtained in the step (4) through a dryer until the moisture content is smaller than or equal to 1.5%, then removing small particles in a multi-stage swinging screening manner, re-dissolving excessive overtails and siftage and then returning to the step (4) to crystallize. The technology is reasonable in design, and the extracted 98.5% lysine hydrochloride is regular in crystal shape, uniform in size and strong in compressive capacity.

The invention discloses tannin paste and a preparation method thereof. The paste is composed of the following components in parts by weight: 100 parts of tannin, 150 parts of glycerol, 73.8 parts of lanolin, 664.2 parts of vaseline, 2 parts of anhydrous sodium sulfite and 10 parts of purified water. When the tannin paste is prepared, the vaseline and the lanolin are heated and mixed to form a component A; the purified water, the glycerol and the anhydrous sodium sulfite are heated and mixed to form a component B; and after the component B and the tannin are mixed to obtain a mixture, the mixture is added into the component A to obtain the tannin paste. The anhydrous lanolin in the formula can adsorb free moisture in preparation, so that the stability of products is increased; the tannin paste does not contain anticorrosives and beewax which are replaced by the vaseline and the lanolin which are easily smeared, so that the softness of the preparation is improved, and the tannin paste is easily smeared; in the preparation process of the tannin paste, materials are easily blocked, according to the preparation method provided by the invention, after a little water is added, the solubility is improved; and through an extracorporeal drug release test, the drug release performance is better than that of a preparation prepared by a national standard prescription.

The invention relates to a production method and equipment for conversion of human faeces into a fertilizer and the fertilizer produced thereby. The method comprises the following steps: A, extracting biogas in a septic tank by an extraction machine, using solid and liquid faeces in the septic tank as original slurry; B, filtering the original slurry by a filtering device to remove debris to obtain preliminary faece slurry; C, adding a desiccant into the preliminary faece slurry to stir for mixing in a stirrer to obtain half-dry faece slag; D, drying the biogas by a gas water separation device; E, burning the dried biogas to use the heat of biogas combustion to heat and evaporate the half-dry faece slag obtained by the step C in an evaporation device to obtian dry faece slag. The production method and equipment for conversion of the human faeces into the fertilizer has the advantages of saving resources and reducing pollution, and has good economic benefits and social benefits.

The invention discloses a high protein feed prepared by using waste yeast mud and its method. The method comprises the following steps: adding the waste yeast mud in water and uniformly mixing, self-dissolving for 6-36 hours at the temperature of 30-60 DEG C, adding soybean meal and uniformly stirring, drying to prepare the high protein feed, wherein the waste yeast mud is the waste yeast mud capable of producing beta-mannanase or beer. By calculating every kilogram of waste yeast mud, the amount of the water is 0-2kg, the addition of soybean meal is 0.5-2kg. According to the invention, the high protein feed contains dissolved protein with high concentration, and is safe and nontoxic. An autolysis method is used for breaking wall of the yeast cells, no other substance can be introduced, the operation is simple and the energy consumption is low; soybean meal which is taken as a raising agent is added when drying for effectively raising the drying efficiency, the cost can be saved, the soybean meal is a high protein substance, the obtained product can be taken as the high protein feed without separation, and can be prepared to high protein feed by adding common auxiliary materials.

The invention discloses a pozzolanic concrete with improvable strength, which is prepared from the following materials: 38-44 parts by weight of silicate cement, 30-34 parts by weight of acid picklingquartz sand, 18-24 parts by weight of modified trass volcanic ash, 18-22 parts by weight of melamine water reducer, 16-20 parts by weight of gypsum powder mixed with carborundum, 6-10 parts by weightof olivinite, 6-10 parts by weight of apophyllite, 6-10 parts by weight of mullite, 3-5 parts by weight of porous limestone, 2-4 parts by weight of marble, 1-3 parts by weight of barium hydroxide, and 22-28 parts by weight of deionized water, and the pozzolanic concrete with improvable strength provided by the invention can provide extremely high strength in the early stage so as to improve the construction efficiency.

The invention provides a method for preparing polybutyrolactam through anionic ring-opening slurry polymerization. The method comprises the following steps: pre-activation of monomer with alkali, pre-acylation of the monomer with an acylation catalyst, premixing of a dispersive solvent and an activation solution, and multi-component polymerization. The molecular weight of nylon 4 prepared by the invention is 30000 or above; the polybutyrolactam prepared by using the method has yield of 80 to 95%; and according to the preparation method disclosed by the invention, polymerization reaction time is 8-72 hours, preferably, 8-48 hours. Materials cannot be caked, so the problem of implosion in the process of polymerization is solved.

The invention discloses a drug powder trace filling machine which comprises a machine body, a precision displacement platform arranged in the machine body, a filling platform and a filling spraying nozzle, wherein the filling spraying nozzle comprises a filling runner and a vibration source. By perfection of key parameters and a specific parameter range in the whole runner design, design of various mounting structures for the vibration source and the filling runner, and computer control, the drug powder trace filling machine realizes precision quantification of trace filling of powder; and furthermore, by research on runner materials, the flowing speed of the powder in the runner is more stable, and the trace filling can be controlled more precisely and effectively.

The invention discloses a bag falling machine. The bag falling machine comprises a support, a material conveying device and an extruding device, wherein the support comprises an upper support and a lower support, and the upper support and the lower support extend horizontally in the length direction correspondingly; the material conveying device comprises a material conveying belt wrapped on the lower support and a conveying belt driving transmission device capable of driving the material conveying belt to convey materials in the horizontal direction; and the extruding device comprises a plurality of extruding components and extruding component driving transmission devices, and fixing shafts, capable of controlling extruding components to extrude materials, of extrude rollers of extrudingcomponent driving transmission devices. According to the bag falling machine, the caked materials can be subjected to bag falling without manual operation so that the fluidity of the materials can berecovered; and compared with manual bag falling, the production efficiency can be improved, and the production cost can be reduced.

The invention discloses a mortar shortening coagulation time. The mortar is prepared from the following raw materials in parts by weight: 38-44 parts of Portland cement, 30-34 parts of quartz sand, 18-24 parts of emulsion powder, 18-22 part of cellulose diacetate, 16-20 parts of calcium chloride treated sodium-based bentonite, 6-10 parts of polyacrylamide, 4-10 parts of coagulating aid, and 2-5 parts of aluminum sulfate doped fly ash. The mortar shortening coagulation time can coagulate in a shorter time but maintain the strength, thereby improving working efficiency and having higher use value and good application prospect.

The invention discloses an industrial production method of o-nitrobenzenesulfonyl chloride. The method comprises the following steps that o-nitrochlorobenzene and sodium methyl mercaptide are subjected to an etherification reaction, filtering is conducted, an obtained filter cake is subjected to recrystallization, and through centrifugation separation and drying, a dry product of o-nitrobenzene dimethyl sulfide is obtained; the dry product of o-nitrobenzene dimethyl sulfide is subjected to a chlorination reaction in batches to obtain a wet crude product, an appropriate amount of hydrochloric acid is added in a chlorination reaction system, the chlorination reaction is carried out in a hydrophilic organic acid solvent, and the mole ratio of the o-nitrobenzene dimethyl sulfide to water during the chlorination reaction is 1:(5-15); a finished product of o-nitrobenzenesulfonyl chloride is obtained through refining and drying. Through HPLC detection, the content of the o-nitrobenzenesulfonyl chloride synthesized by means of the method is 98-98.5%; the yield is 0.72-0.75, the acquisition rate is 0.97 or above, the turbidity (ppm) is 1.5-2, and the melting point is 66-67 DEG C. By adopting the hydrophilic organic acid solvent, the problems about large-scale production discharging, yield and quality are solved, and meanwhile the purposes of mixed application and post-treatment separation of large-scale production water-soluble solvents are achieved.

The invention provides a method for extracting effective ingredients in amber through ultrasonic-assisted extraction and supercritical CO2 gradient elution, and belongs to an extraction technology adopting a high-strength and high-energy ultrasonic-assisted extraction and supercritical CO2 fluid gradient elution. The method comprises the steps as follows: the amber and inactive substances are mixed and added in a pulverizer and pulverized into a mixture; the mixture is added into an ultrasonic-assisted extraction device, ethyl alcohol is injected into the ultrasonic-assisted extraction device, the extraction temperature, time and energy frequency of the ultrasonic-assisted extraction device are set, an ethyl alcohol extract liquor is obtained and taken out, ethyl alcohol is recovered, and an extract is obtained; and the extract is added into a supercritical CO2 extraction device, pressure and temperature gradient change of the supercritical CO2 extraction device is set, and amber acid, abietic acid, d-pimaric acid and essential oil are extracted. Compared with the prior art, the method is simple to operate, safe, reliable, low in cost, energy-saving and environment-friendly, and meanwhile, the obtained amber product is high in purity, good in quality and applicable to preparation of drugs, food and drinks.

The preparation process of the low-bitterness soybean peptide through step-by-step excision enzyme enzymolysis and the stirring device of the low-bitterness soybean peptide comprises the following steps: step 1, dissolving soybean protein isolate powder by using deionized water through the stirring device to prepare a soybean protein isolate solution with the concentration of 5%; step 2, adding a NaOH solution to adjust the pH value to 7.5, and carrying out sterilization treatment at 85 DEG C for 10 minutes; step 3, adding 0.1% of composite endonuclease, wherein the enzymolysis temperature is 55 DEG C; 4, 0.4% of excision protease is added, and the enzymolysis temperature is 45 DEG C; and step 5, after enzymolysis, putting the solution into a water bath kettle at 90 DEG C, carrying out enzyme deactivation for 15 minutes, centrifuging, and taking supernate. The invention aims to provide the soybean peptide preparation process with high preparation efficiency and bitter taste reduction and the stirring device thereof.

The invention relates to a method of improving catalytic chiral alcohol resolution properties of free lipase in an organic phase by inducing lipase conformational changes by utilizing a bile salt. The method includes S1) weighing a catalytic amount of the lipase, and adding into a buffer solution containing the bile salt, S2) fully mixing the mixture in the step S1), performing vacuum freeze drying and grinding into powder, S3) mixing the powder prepared in the step S2) with an organic solvent, a chiral alcohol and vinyl acetate or isopropenyl acetate and reacting, and S4) after the reaction is finished, diluting the reaction solution, and detecting generation amounts of R-chiral alcohol and S-chiral alcohol through a high performance liquid chromatograph to determine chiral resolution activity of the lipase treated with the bile salt. The method is convenient in material preparation, simple in operation, good in repeatability and obvious in effects. Compared with lipase not subjected to treatment with the bile salt, the catalytic resolution properties of the lipase treated with the bile salt are greatly improved.

The invention discloses a low-resistance and efficient fluidization demister device and a demisting method thereof. A fluidization demister adopts a diameter-variable pipeline with a large top and a small bottom, wherein the diameter-variable pipeline is internally provided with a demisting cavity; airflow enters from the bottom of the diameter-variable pipeline and a demisting medium in the demisting cavity has a fluidized state under the action of the ascending airflow; meanwhile, the ascending airflow meets the demisting medium with the fluidized state; the direction of the airflow is deviated under the action of inertia, baffling and the like; liquid drops and solid grains in the airflow are continuously adsorbed, coagulated and intercepted by the spherical demisting medium; the airflow which is subjected to liquid drop removal by the demisting medium is exhausted from the top of the demister. Different proportions and porosity factors of the demisting medium are selected accordingto different air speeds and system parameters; the spherical design is adopted and has the characteristics of uneasiness of being blocked, easiness for washing, strong working condition adaptabilityand good fluidization effect; the demisting efficiency can be effectively improved, and the low-resistance and efficient fluidization demister device has the advantages of small investment, small resistance, uneasiness of being blocked and low operation and maintenance cost, and can meet the demisting requirements of various demisting occasions.

The invention belongs to the field of seed coating agents, and in particular, relates to a suspended seed coating agent containing pyraclostrobin and fludioxonil. The suspended seed coating agent comprises the components by the weight percentage: X% of fludioxonil, Y% of pyraclostrobin, 3-6% of an emulsifier, 0.15-0.2% of a thickener, 3-4% of an anti-freezing agent, 0.2-0.5% of a defoaming agent,4-5% of warning color, 3-4% of a film-forming agent, 0.1-1% of a preservative and the balance being water, wherein the sum of X and Y is equal to 6. The suspended seed coating agent has the beneficialeffects that a conventional suspended seed coating agent is easy to grow up in particle size and easy to cake due to alternate cold and hot storage; the prepared suspended seed coating agent is stable in performance and uniform in coating; compared with the conventional suspended seed coating agent, the suspended seed coating agent has the advantages that the particle size is basically kept stable, and cold and hot alternate storage is normal.

The invention belongs to the field of drilling of geological prospecting, and relates to drilling powder for geological prospecting and a preparation method thereof. The drilling powder is characterized by comprising the following raw materials in parts by weight: 700-750 parts of bentonite, 40-60 parts of emulsion polymer, 70-100 parts of sulfonated lignite, 40-70 parts of hydrolyzed polyacrylonitrile ammonium salt, 20-100 parts of lubricant, and 40-60 parts of barite. The drilling powder has multiple effects and strong applicability, is environment-friendly, has low preparation cost, and has the preparation method which is simple and easy to operate.