126results about How to "Reduce powder content" patented technology

The invention discloses a preparation method of aluminum alloy powder for additive manufacturing, and belongs to the technical field of 3D printing additive manufacturing. The preparation method comprises the steps that impurities in raw materials are removed; a graphite rod is added in a crucible to be roasted at the temperature of 300-500 DEG C; a smelting chamber and an atomization chamber are subjected to vacuum pumping treatment, wherein the vacuum degree reaches 1*10<-4>-1*10<-2> Pa; a heat preservation pot and a tundish are heated; metal liquid flow which perpendicularly drops is broken into small liquid drops through a nozzle with a negative pressure drainage effect under the high pressure of 0.5-6 MPa and high-purity argon, powder is formed through cooling and spheroidizing solidification, and a 5-30 kw high-pressure fan is adopted; and after the temperature is lower than 50 DEG C, screening is carried out under the atmosphere of high-purity argon. The preparation method has the advantages that industrial production can be achieved, the domestic urgent demand for high-performance aeronautical aluminum alloy powder materials is met, and the manufacturing cost is effectively saved.

The invention discloses a preparation method for a composite electrolyte membrane of a solid-state battery. By a multi-layer slope flowing coating process, multi-layer organic-inorganic composite electrolyte paste is synchronously coated on a surface of a carrier, and the composite electrolyte membrane of the multi-layer structure solid-state battery can be prepared. The multi-current coating process comprises the following steps of preparing paste of different constituents, allowing the organic-inorganic composite electrolyte paste to downwards flow along a slope flowing current after flowingout of a gap of a coating module according to an arrangement sequence, forming a liquid bridge in a gap between a coating roller and a slope flowing coating module, taking away by the running carrier, forming one or more layers of coating, performing, and stripping the carrier, thereby obtaining the composite electrolyte membrane of the solid-state battery.

The invention relates to high-fiber edible oat bran powder and also relates to peeled oat grains; the invention further relates to preparation methods of the high-fiber edible oat bran powder and the peeled oat grains; and the invention belongs to the technical field of grain and food raw material processing. A vertical sand-roller rice mill is utilized to carry out 4-6 times of peelings; the sieve plates are all punched sieves whose forward tilt angles are 10 degrees and sieve holes are 25mm multiplies 0.9mm; the sand rollers are all flat-sheet emery sand rollers whose diameters are 250mm and linear velocities are 13.7m/s; the flat-sheet emery sand rollers utilized in the first and second peelings are of No. 30 and the flat-sheet emery sand rollers utilized in the third and fourth peelings are of No. 36; a pneumatic three-way dial-plate valve is turned on/off, so as to control whether to perform the fifth and sixth peelings, wherein the flat-sheet emery sand roller utilized in the fifth peeling is of No. 46 and the flat-sheet emery sand roller utilized in the sixth peeling is of No. 60; electric current of each vertical sand-roller rice mill is maintained at 17-18 amperes; and the final peeling rate is up to 80-85%. By utilizing the preparation methods, the peeling of the oats can be softly performed in a layer-by-layer way, so that the qualities of the bran powder and the peeled oats are thereby ensured.

The invention provides an improved vertical type section bar electrostatic spraying and coating device, and belongs to the technical field of spraying devices. The improved vertical type section bar electrostatic spraying and coating device solves the technical problems that in the prior art, power outlet is not uniform, and the spraying effect is poor. The improved vertical type section bar electrostatic spraying and coating device comprises a coating machine, a compressed air system and a spraying material storage tank, a sprayer mechanism is arranged in the coating machine, the compressed air system is connected with the sprayer mechanism, and the spraying material storage tank is connected with the sprayer mechanism through a material conveying mechanism. The improved vertical type section bar electrostatic spraying and coating device further comprises a gas-solid mixer which comprises a powder feed chamber internally provided with a cavity, a feed port is formed in one end of the powder feed chamber, the other end of the powder feed chamber is detachably connected with a mixing chamber, a first gas inlet and the like are formed in the side wall of the powder feed chamber, and the sprayer mechanism can rise and fall in the vertical direction. Full gas-solid mixing can be conducted on powder entering the coating machine in advance, large-grained powder is fully scattered into small-grained powder, and therefore spraying quality is improved.

The invention discloses a combined vibration sieve, wherein a coarse sieve surface (6) of a coarse vibration sieve (5) is a sieve mesh formed by a plurality of suspended self-cleaning elastic coarse sieve bars (18) which are uniformly spaced at a certain distance and in a mounting direction oblique upwards or downwards to the coarse sieve surface (6). By adopting the technical proposal, the combined vibration sieve has reasonable structure and high safety and reliability, solves the problems of low screening efficiency and poor screening quality in the prior art, improves the efficiency of screening lump ores, particularly the lump ores with a high water content, minimizes the dust content of screened lump ores and the proportion of lump ores in the powdered ores after screening, further meets the requirements for lump ores in blast furnace production, increases the utilization coefficient of the blast furnace and reduces the production costs.

The invention discloses a spore powder collection method, a spore powder collection apparatus and a brushing machine. The spore powder collection method comprises the following steps: a fungi bed is sent into a first cyclone separator by a sucking conveying material-collector, and a light material is collected by a pulse deduster to obtain spore powder; a heavy material is conveyed to the brushing machine, and a fine material screened by the brushing machine is sent into a fourth cyclone separator; a thick material screened by the brushing machine is sent into a second cyclone separator; a heavy material separated by the second cyclone separator is sent into a pulverizer, and a pulverized material is sent into a third cyclone separator; and the light material of each cyclone separator is conveyed to a pulse deduster via a blower fan by negative pressure, and the spore powder is collected by the pulse deduster. According to the method, a segmented multistage separation manner comprising first, cyclone separation, then kneading and brushing screening, again, cyclone separation, and cyclone separation of the heavy material after pulverizing is used to ensure that the collected spore powder can reach 160-180 billion/g, the living spore rate reaches 85-90%, and spore extracted from residue is only 400 million/g, so that separating extraction is very sufficient.

Rapeseed peeling process achieves control of water content between 7-9%. It is carried out by: sorting them with multi-grade screen, using peelers with different roller gaps to peel them simultaneously, and separating continently. Either the rate of the kernels in the husks or the rate of the husks in the kernels is <3%, so that qualities of kernels and husks are increased, so are the oil products. It is used industrially.

The invention discloses a single-driving-roller clearance-free sand maker, and relates to the technical field of crushing equipment. The single-driving-roller clearance-free sand maker is composed of a rack 2, a power device, a movable roller 9, a fixed roller, a fixed roller bearing seat 7 and a pressure regulating device; the pressure regulating device comprises a pressure regulating power component, a pressure regulating component, a pressure regulating and applying component, a pressure regulating guide component and a pressure regulating transmission component. The single-driving-roller clearance-free sand maker has the characteristics of simple structure, convenience in maintaining, low running cost, long running cycle, high sand formation rate and the like, can be used for preparing sands for construction by utilizing materials including sand stones, cobblestones and the like, also can be used for front breaking and grinding of a grinding system, and can be widely applied to the fields including construction, construction materials, mines and the like.

The present invention discloses a thermoplastic resin granulation method and a device thereof. The method comprises the following steps: carrying out composite extruding on a thermoplastic resin and an inorganic filler with an extruder to form a composite resin; carrying out bracing water cooling and granulation on the composite resin with a bracing granulation machine to form particles; screening the particles with a screening machine; and separating the particles from the powder with a particle separation device. According to the thermoplastic resin granulation method of the present invention, bracing water cooling, granulation and screening are sequentially performed, and then the particle separation device is adopted to separate the particles from the powder, such that the powder content in the particles is reduced, the powder problem of the downstream injection molding plant during the production process is effectively solved, and the production efficiency and the yield are improved.

The invention discloses a super-weather-proof water-based metallic paint, and belongs to the field of a water-based paint. The super-weather-proof water-based metallic paint comprises the following components in percentage by weight: 88-91% of finish-coat paint, 8-10% of pearl powder, 0-2% of pigment and 1% of a thickener. The invention further discloses a preparation method of the super-weather-proof water-based metallic paint. The super-weather-proof water-based metallic paint has favorable hiding power, excellent contamination resistance and self-cleaning function, excellent pain film property, high weather resistance, scrubbing resistance, ageing resistance, scratch resistance, rice color, rich metallic color, obvious quality and good gloss effect; the paint is applicable for inner and outer wall surfaces and metal surfaces, calcium silicate board surfaces and other decorative material surfaces, the application scope is wide. The preparation method is easy to implement, the three wastes are avoided during the production process, and so the preparation method is environmentally friendly and safe.

The invention is prepared by the steps of selecting corn, wheat, bean pulps, cottonseeds and other raw materials, performing secondary smashing and full-extruded treatment, and spraying liquid zymin and the like according to a heat-sensitivity principle. Nutrient substance including protein, amylum and the like in full-extruded feed is loose in structure, thereby facilitating contact of the feed and the zymin and enabling the feed to be easily digested. Intestinal canals of chickens fed with the full-extruded feed are healthy, simultaneously, ammonia gas concentration gain/feed ratio and death rate in henhouses are reduced, and economic benefit of cultivation is increased.

The present invention discloses a silurus asotus feed phagostimulant and a preparation method thereof, and belongs to the technical field of feed additive preparations. Based on nutritional requirements of silurus asotus and water body environment, and combining food intake characteristics, a formula of raw materials is optimized. The silurus asotus feed phagostimulant scientifically combines compound flavor peptides greatly improving palatability and feed utilization rate, having a relatively strong anti-oxidation effect and eliminating free radicals; an accharomyces cerevisiae culture having functional characteristics of being strong in nutrition, biological activity, oxidation resistance, etc.; a high-calcium cerasus humilis extract effectively supplementing calcium, iron and soluble fibers, having a strong embedding effect and prolonging a shelf life; artemisia carvifolia seed powder significantly improving antifreeze effects and stability, improving water resistance and gloss, and enhancing and promoting palatability; and wheat malt powder providing rich nutrients, bioactive substances and plant enzyme sources. Finally, the prepared silurus asotus feed phagostimulant is strong in phagostimulant and good in production performances.

The invention relates to the technical field of gas detection, and discloses a quantitative gas detection device. The quantitative gas detection device comprises a machine frame, a detection box and adriving mechanism, wherein the driving mechanism is positioned under the detection box; the interior of the detection box is slideably connected with a piston plate; the lower part of the piston plate is connected with a piston rod; the piston rod is fixedly connected with the driving mechanism; a detection passage, a battery and a detection lamp are arranged at the upper part of the detection box, the battery and the detection lamp are respectively electrically connected with a conducting wire, a detection plate is arranged in the detection passage and is hinged to the detection box, a firstadhesive layer is arranged at the lower part of the detection plate and is in contact with two conducting wires, and a second adhesive layer is arranged on the detection passage; an air intake passage is arranged at one side of the detection box, a blocking plate is arranged in the air intake passage, the other end of the blocking plate is provided with a groove, an air cavity is arranged in thedetection box above the groove, a limiting block is arranged in the air cavity, and a spring is arranged at the top part of the limiting block; the air intake passage is provided with a shrinkage section, a throat pipe section and a diffusion section, an air pipe is arranged at the throat pipe section, and the air cavity is communicated with the air intake passage through the air pipe. The quantitative gas detection device has the advantages that the structure is simple, and the detection gas can be quantitatively detected.

The invention discloses a mulberry leaf extract fish feed adhesive, and a preparation method and application of mulberry leaf extract. The mulberry leaf extract is taken as an aquatic feed adhesive soas to perform the functions of lowering the powder content, the pulverization rate and the dissolve-loss ratio of the feed and prolonging the shape-preserving time of the feed in water, the absorption of nutrient ingredients by fishes and shrimps is not affected, an adhesion effect is good, and water stability is good. A new purpose of mulberry leaves is developed, a traditional mulberry leaf utilization structure is improved, the comprehensive utilization potential of the mulberry leaves is performed, waste materials are recycled, and the economic and social benefit of the mulberry leaves can be improved. The invention has a very important meaning and has the advantages of low cost, a small use amount, wide sources, no toxicity and convenience in processing.

The invention discloses a high-yield catfish feed attractant and a preparation method thereof and belongs to the technical field of feed additive preparation. The high-yield catfish feed attractant and the preparation method thereof have the advantages that the nutritional requirements of catfish and water environments are combined with the ingestion features of the catfish to optimize a raw material formula, raw materials are scientifically compounded to greatly increase palatability and feed utilization rate, and the attractant comprises compound flavor peptide which has high anti-oxidation effect and is capable of removing free radicals; the high-yield catfish feed attractant contains saccharomyces cerevisiae culture with functional features such as high nutrition, high bioactivity and high oxidation resistance, Prunus Humilis Bunge extract which can effectively supplement calcium, iron and soluble fibers, has a powerful embedding effect and can prolong shelf life, wormwood seed powder which can evidently increase an anti-freezing effect and stability, increase water resistance and glossiness, enhance and promote palatability and lower powder content, and wheat malt powder which can provide rich nutritional substances, bioactive substances, fragrant substances and plant enzyme sources; the prepared high-yield catfish feed attractant is high in palpability and good in production performance.

The invention relates to the field of aggregate dust removal before bin cooling and for asphalt concrete mixing equipment, in particular to an aggregate dust removing device and method used before bin cooling and for the asphalt concrete mixing equipment. The aggregate dust removing device used before bin cooling and for the asphalt concrete mixing equipment comprises an aggregate conveying device, a drying roller, a winnowing device and a dust remover. The winnowing device comprises a winnowing chamber and an air blower; the winnowing chamber is provided with a feed port, a discharge port, an air inlet and a dust suction port, the feed port is communicated with the drying roller, the discharge port is used for discharging screened aggregate, the air inlet is communicated with the air blower, and the dust suction port is connected with the dust remover; the air blower is provided with an air inlet and an air outlet, the air inlet is connected with the dust remover, and the air outlet is connected with the air inlet of the winnowing chamber. Meanwhile, the air blower blows clean air in the dust remover to blow dust of the aggregate in the winnowing chamber. According to the invention, the dust content of the aggregate for asphalt concrete is greatly lowered, waste is avoided, resources are saved, the arrangement is reasonable, and secondary pollution is avoided.

The invention discloses an environmental-friendly mixed culture fish feed capable of strengthening food calling properties. The environmental-friendly mixed culture fish feed is prepared from the following raw materials in percentage by weight: 10-15% of soybean meal, 15-30% of rape seed cakes, 5-15% of cottonseed meal, 2-10% of corn alcohol meal, 2-8% of pig internal organ powder, 2-8% of fish meal, 2-5% of beer yeast powder, 5-15% of high-gluten flour, 1-4% of soybean oil, 0.5-1% of soybean phospholipid oil, 2-5% of calcium dihydrogen phosphate, 2-5% of bentonite, 0.5-1% of bacillus subtilis, 0.2-0.5% of taurine, 0.3-0.6% of dried orange peel, 0.05-0.1% of sulfobetaine, 0.1-0.5% of choline chloride, 0.05-0.2% of methionine, 0.2-0.5% of lysine, 0.2-0.6% of composite trace elements and 0.3-0.4% of composite vitamins. The feed can improve the food calling properties and the digestibility, reduce the powder, and reduce the waste of feeds.