215 results about "Superfine grinding" patented technology

The invention relates to the technical field of data processing, in particular to a liquid disperse dye for polyester fabrics and a use method thereof, and the dye comprises an azo or anthraquinone disperse dye main agent subjected to superfine grinding, a nonionic and anionic compound dispersant system, a fiber plasticizer and a stabilizer. According to the preparation method, molecular dynamics simulation and mesoscale dissipative particle dynamics simulation are combined, the synergistic effect of a dispersant adsorption configuration and double electric layer potential is quantified, and a nonlinear association rule of dynamic particle size control and dispersion stability is established; a multi-physics field coupling model is adopted to integrate fiber humidity, temperature gradient and pressure distribution parameters, and cross-scale collaborative optimization of microscopic interface action and macroscopic process parameters is achieved. According to the method, repetitive experiment iteration is replaced by digital design, the formula development period is remarkably shortened, the dyeing uniformity and the batch-to-batch reproducibility are improved, and the method is suitable for continuous dyeing production of high-density and superfine polyester fabrics.

The invention belongs to the technical field of medicine and health care, and particularly relates to a preparation method of an American ginseng root water extract rich in rare ginsenoside and application of the American ginseng root water extract in improving the immune and anti-tumor direction. The preparation method comprises the following steps: step 1, carrying out superfine grinding on American ginseng, and sieving; step 2, adding the American ginseng powder into water, and then adding compound enzyme for enzymolysis to obtain enzymatic hydrolysate; s3, after the enzymolysis is finished, heating the enzymatic hydrolysate, extracting twice, and mixing after the extraction is finished; and S4, inoculating compound lactic acid bacteria into the mixed solution, fermenting to obtain a fermentation solution, blending, and sterilizing to obtain the American ginseng afterbiogen beverage. According to the invention, a new physical-biological combined process is adopted, and crushing, enzymolysis, extraction, fermentation and blending are carried out, so that the American ginseng metagen beverage rich in rare ginsenoside is obtained, and the rare ginsenoside has a remarkable anti-tumor effect and higher activity.

The invention discloses a preparation method of superfine calcium citrate suitable for liquid calcium, which comprises the following steps: S1, taking citric acid, citrate and calcium carbonate to react in water to obtain calcium citrate; the reaction temperature ranges from 80 DEG C to 90 DEG C, and the reaction time ranges from 10 min to 20 min; s2, performing vacuum freeze drying and primary crushing on the calcium citrate to obtain coarse powder; s3, absolute ethyl alcohol is added into the coarse powder and mixed evenly, low-temperature superfine grinding is carried out, the adding amount of the absolute ethyl alcohol is 8%-10% of the mass of the coarse powder, and the low-temperature superfine grinding temperature is 0-5 DEG C. On the basis of a normal calcium citrate preparation method, the calcium citrate is crushed and dispersed at a low temperature by using vacuum freeze drying, stabilizer adding and ice crystallization superfine grinding technologies, so that the structural stability of the calcium citrate is improved, and the problems of layering, thickening, solidification and the like are avoided when the calcium citrate is applied to liquid calcium.

The invention relates to the technical field of coal gangue resource utilization, in particular to a magnetic coal series kaolin hydrogel adsorbing material as well as a preparation method and application thereof. The preparation method of the material specifically comprises the following steps: carrying out ultrafine grinding, sieving and grading on coal gangue ore to obtain a coal series kaolinite material; further performing magnetic separation to obtain coal series kaolinite iron-rich tailings; further performing magnetizing roasting in a reducing atmosphere to obtain magnetic coal series kaolin; the preparation method comprises the following steps: compounding magnetic coal series kaolin with sodium alginate and chitosan by adopting a gel coating method, dropwise adding a calcium chloride solution for crosslinking, and freeze-drying to obtain the magnetic coal series kaolin hydrogel material. The preparation method is simple, and the obtained adsorption material has the characteristics of low cost, large adsorption capacity, high adsorption rate, high selectivity, excellent cyclic utilization performance and the like.

The invention provides a bearing peach-shaped channel superfinishing grinding device which comprises a base, and a workpiece rotating supporting mechanism and an oilstone swinging mechanism are arranged on the base. The workpiece rotating and supporting mechanism comprises a left tip and a right tip, the left tip is provided with a drive plate and a heart-shaped chuck, and the position of the right tip in the axial direction is adjustable. A mounting seat of the oilstone swinging mechanism can be fed in the left-right direction and the front-back direction and comprises an oilstone swinging rotating shaft capable of rotating in a reciprocating mode in the axial direction, an oilstone frame is arranged at the output end of the oilstone swinging rotating shaft, an oilstone box is arranged at the outer end of the oilstone frame, oilstone is assembled in the oilstone box in the vertical direction, and the axial extension line of the oilstone swinging rotating shaft and the oilstone intersect at a point O; and an oilstone pressing rod and a hydraulic valve are arranged on the oilstone frame. The device can finish superfinishing grinding of two curved surfaces of a peach-shaped channel under the condition that one device is used for one-time clamping, meanwhile, the device can be suitable for superfinishing of a shaft workpiece with a plurality of channels, and the adverse effect of multiple times of feeding on the superfinishing grinding precision can be effectively reduced.

The invention discloses geopolymer cement based on coal gangue activation reaction as well as a preparation method and application thereof, and relates to the technical field of building materials. The invention relates to a coal gangue concrete, which is prepared from the following raw materials in percentage by mass: 50 to 70 percent of activated coal gangue powder, 5 to 15 percent of alkali activator, 10 to 30 percent of auxiliary cementing material and water, wherein the water accounts for 30 to 40 percent of the total mass of the activated coal gangue powder, the alkali activator and the auxiliary cementing material. Through a composite activation process of medium-temperature calcination decarburization and superfine grinding, the activity of silicon-aluminum components in the coal gangue is effectively excited, the reaction efficiency is remarkably improved, the mixing amount of the coal gangue reaches 50%-70%, the resource utilization rate of solid waste is greatly increased, and efficient activation and resource utilization of the coal gangue are achieved. By adopting the methyl sodium silicate and sodium silicate composite activator, the reaction rate and the product structure are regulated and controlled, and the workability and the setting and hardening behaviors of slurry are improved, so that the obtained geopolymer cement has relatively high early and later strength and excellent durability.

The invention discloses a low-temperature superfine grinding and quality maintaining process for glutinous rice flour. The process comprises the following steps: pretreatment: cleaning a glutinous rice raw material, atomizing, humidifying and tempering, and pre-cooling after wetting; environment construction: an inert gas circulation environment is constructed in a closed crushing system, the temperature of circulation gas in the system is controlled to be within a first low-temperature interval, and the oxygen concentration is controlled to be below a safety threshold value; graded crushing: feeding the treated raw materials into a crushing system, utilizing low-temperature circulating gas as a conveying medium, enabling the glutinous rice raw materials to sequentially pass through a plurality of crushing areas with gradually-decreased grinding gaps in the airflow direction to be subjected to graded crushing, and taking away heat generated by grinding by utilizing the low-temperature circulating gas; and separating fine powder. The system is high in integration level, the ultrafine glutinous rice flour is uniform and fine in particle size and controllable in broken starch rate through a low-temperature inert gas loop and graded crushing design, the gelatinization characteristic and the gel characteristic of the ultrafine glutinous rice flour are closer to those of raw materials, and the application range is wider.

The invention discloses a preparation method of a nano embedding material based on a low-temperature superfine grinding technology, and belongs to the technical field of modified nano materials. The method comprises the following steps: cleaning and slicing fresh beautiful millettia root and stem, performing programmed liquid nitrogen freezing, and performing jet milling to obtain nano powder; the preparation method comprises the following steps: taking anionic polysaccharide, neutral polysaccharide nanoparticles, nano-modified cassava starch and deionized water, magnetically stirring, carrying out ultrasonic treatment, and mixing for 30-45 minutes; mixing the wall material solution with the nano-powder, performing ultrasonic treatment to form a coating solution, adding calcium chloride and Tween 80, and stirring; and spraying a magnesium chloride solution at the voltage of 40-60kV and the flow rate of 0.5-1.5 mL / h, stirring, mixing with a chitosan solution according to the mass ratio of 1: (2-4), adjusting the pH value, stirring, and freeze-drying to obtain the product. The millettia specisoa champ embedding method retains the active ingredients of millettia specisoa champ, improves the embedding efficiency by 85-96%, is stable, controls release, and is suitable for health care products and drug carriers.

The invention relates to the technical field of grain production, in particular to a wheat flour processing method which comprises the following steps: cleaning and pretreating raw materials; subacid electrolyzed water stepped conditioning and wheat wetting: subacid electrolyzed water with the effective chlorine concentration of 5-30 ppm is used for carrying out at least two stages of wheat wetting treatment on the wheat; low-temperature grinding and fine grading: lightly grinding and peeling the wetted wheat, and then grinding in a low-temperature environment of 15-25 DEG C to obtain a peel-ground material, high-precision heart-ground powder and wheat germs; performing superfine grinding on the wheat germs, namely performing superfine grinding on the wheat germs obtained in the step S3 to obtain superfine ground wheat germ powder with the particle size D90 being less than or equal to 45 microns; optimizing and recombining taste and nutrition, namely compounding the high-enrichment aleurone layer powder, the high-precision heart milling powder and the superfine grinding wheat germ powder; wherein the high-enrichment aleurone layer powder is obtained from the peel grinding material. The wheat flour obtained by the method can meet the requirements of low bacteria and mellow taste at the same time.

The utility model relates to the field of white carbon black, and discloses a white carbon black superfine grinding modification device which comprises a shell, a material suction pipe is arranged on the top of the shell, material suction equipment is arranged on the upper portion of the shell, a grinding mechanism is arranged in the shell, and the grinding mechanism comprises a crushing mechanism and a grinding assembly. The grinding assembly comprises a grinding disc, the bottom of the grinding disc is fixedly connected with a plurality of supporting rods, the supporting rods are fixedly connected with the bottom of the inner wall of the shell, and a first motor is arranged on the lower portion of the grinding disc and fixedly connected with the inner wall of the shell. According to the white carbon black superfine grinding device, the shell, the grinding assembly and the air inlet are matched with one another, and the first motor, the rotating shaft, the grinding disc and the grinding piece are matched with one another, so that the white carbon black superfine grinding device can more effectively carry out superfine grinding on white carbon black materials, the production efficiency of the device can be effectively improved, and the device is more practical.

The invention provides a method for recovering laterite-nickel ore tailings, which comprises the following steps: (1) slurrying laterite-nickel ore tailings, and carrying out acid leaching treatment to obtain leached residues; (2) mixing the leaching residues with a reducing agent, and carrying out reduction desulfurization treatment to obtain reducing residues; (3) carrying out superfine grinding treatment on the reducing slag, and carrying out first magnetic separation treatment to obtain a first magnetic separation material; (4) the first magnetic separation material and a dispersing agent are mixed for second magnetic separation treatment, and a second magnetic separation material is obtained; and (5) carrying out alkali washing purification treatment on the second magnetic separation material, and drying to obtain sponge iron. According to the method, the problems of excessive accumulation, paid landfill and difficulty in recycling of the laterite-nickel ore tailings are solved, the laterite-nickel ore hydrometallurgy tailings are prepared into the sponge iron, and the magnetic separation tailings obtained in the recovery process can be used for producing building materials, cement and other additional products.

The invention provides a control method for superfine grinding processing of oolitic hematite, which is used for controlling grinding equipment in a superfine grinding link, and specifically comprises the following steps: step 1, data acquisition and preprocessing: step 11, acquiring key data of the superfine grinding link in real time through a sensor, the key data comprises particle size distribution, power, current, vibration frequency and amplitude of the ore grinding equipment, and temperature of a bearing and a motor of the ore grinding equipment; 12, cleaning, denoising and integrating the data by using a big data platform; step 13, storing the preprocessed data as training data; 2, constructing a granularity prediction model, an energy consumption optimization model and an equipment health management model, and respectively training the granularity prediction model, the energy consumption optimization model and the equipment health management model by adopting the training data; and step 3, inputting the key data acquired in real time into the granularity prediction model, the energy consumption optimization model and the equipment health management model, controlling the ore grinding equipment according to the output of the granularity prediction model and the energy consumption optimization model, and obtaining an equipment health prediction result according to the output of the equipment health management model. And judging the health state of the equipment according to the equipment health prediction result.

The invention discloses high-solubility asparagus powder rich in saponin and a preparation method of the high-solubility asparagus powder, and belongs to the technical field of instant food. According to the invention, membrane filtration is coupled with freeze-drying and superfine grinding processes. Comprising the following steps: washing an asparagus raw material, pulping to obtain an asparagus leaching solution, and carrying out filter pressing through a 100-140-mesh sieve to obtain an asparagus press filtrate; performing ultrafiltration on the asparagus pressure filtrate to obtain asparagus ultrafiltrate, and combining pressure filtration and ultrafiltration residues; freeze-drying the asparagus ultrafiltrate, and controlling the moisture content of the product to be 10-15%; and carrying out superfine grinding on the freeze-dried sample to obtain the high-solubility asparagus powder rich in saponin. According to the method provided by the invention, the solubility of the asparagus powder and the yield of insoluble dietary fibers are improved while heat-sensitive components such as saponin in the asparagus powder are protected.

The invention belongs to the field of preparation of Pickering emulsions, and particularly relates to a method for preparing a Pickering emulsifier from peanut protein. The preparation method of the emulsifier comprises the following steps: 1, preparing a peanut protein solution from peanut protein, and adjusting the pH value of the peanut protein solution to be neutral; step 2, heating the neutral peanut protein solution obtained in the step 1 at 90-100 DEG C; in order to further improve the stability of the Pickering emulsion in which the emulsifier participates in preparation, the preparation method of the emulsifier further comprises the following steps: step 3, heating, cooling to room temperature, and freeze-drying; carrying out superfine grinding on the freeze-dried peanut protein, redissolving and centrifuging to obtain soluble aggregate and insoluble aggregate; and 4, mixing the soluble aggregate and the insoluble aggregate according to a weight ratio of (0-1): 2. Wherein when the insoluble aggregate is completely used as the emulsifier to prepare the Pickering emulsion, the stability of the Pickering emulsion is optimal.

The invention discloses a superfine grinding and cooling process for producing a kaolin raw material. The superfine grinding and cooling process comprises the following steps: (1) pulping; (2) front-section wet grinding; (3) cooling: pumping the slurry A in the step (2) into a cooling tower for cooling through a slurry pump at the flow rate of 30-70m < 3 > / h to obtain slurry B with the temperature of 30-45 DEG C and the mass concentration of 35-45%; and (4) carrying out rear-section wet grinding. The superfine grinding and cooling process for producing the kaolin raw material has the beneficial effects that the particle collision requirement of superfine grinding is met, the consumption of a dispersing agent is reduced due to low temperature, the total consumption of the dispersing agent is finally reduced, the use cost of the raw material is further reduced, the service life of rear-section wet grinding equipment is prolonged, the maintenance cost is reduced, and the service life of the kaolin raw material is prolonged. And the granularity D92 of the slurry is less than 2 microns, less impurities are introduced, and the qualified rate of the product is more than 95%.

The utility model discloses a talcum powder slurry superfine grinding machine which comprises a supporting box, a spherical filter plate fixedly connected to the lower surface of the supporting box, filter holes formed in the spherical filter plate, a grinding machine body fixedly connected to the inner top face of the supporting box, a drainage groove formed in the supporting box, and a feeding pipe fixedly connected to the upper end of the drainage groove. A feeding nozzle is fixedly connected to the upper surface of the feeding pipe, a collecting box is fixedly connected to the lower surface of the spherical filter plate, a discharging opening is formed in the collecting box, a motor is fixedly connected to the lower surface of the collecting box, a rotating rod is fixedly connected to the output end of the motor, and a scraper is fixedly connected to the outer surface of the rotating rod; through cooperation of the drainage groove, the spherical filter plate, the feeding pipe and the feeding nozzle, feeding, discharging and grinding can be conducted at the same time, continuous work can be achieved, the downtime is shortened, the overall working efficiency of equipment is remarkably improved, and the production process is optimized; collected materials can be conveniently discharged, and the materials are prevented from staying in the collecting box.

The invention discloses a dampness-clearing and soothing foot bath bag based on Mongolian medicine traditional Chinese medicine homologous red mud and a preparation process thereof, and relates to the technical field of life cultivation and health preservation products. The process comprises the following steps: selecting Mongolian medicine and traditional Chinese medicine homologous deep red mud which is below two meters underground, naturally drying in the sun, frying at 120-150 DEG C until the red mud is loose and light brown, and carrying out superfine grinding to 200 meshes; respectively preparing medicinal material powder of folium artemisiae argyi, flos carthami and fresh ginger; 80 parts by weight of red mud powder, 10 parts by weight of folium artemisiae argyi powder, 5 parts by weight of safflower powder and 5 parts by weight of ginger powder are fully stirred, mixed and subpackaged. Through the unique sun-drying-stir-frying-superfine grinding pretreatment technology, the problem that red mud is prone to caking is effectively solved, and the dissolution rate of active ingredients is greatly increased; meanwhile, by means of synergistic compatibility of the red mud mineral substances and the traditional Chinese medicinal materials, the obvious damp-clearing and soothing effects are achieved, use is convenient, and foot pollution is avoided.

The application provides a device and method for improving the quality of machine-made sand, one end of a lifting box is provided with a driving motor, the other end is provided with a stirring rod, a plurality of radial vertical cross bars are arranged on the stirring rod, a stirring barrel is further arranged on the bottom plate, the stirring barrel is coaxially arranged with the stirring rod, the stirring rod comprises a first stirring rod and a second stirring rod, a plurality of first cross bars are arranged on the outer surface, the first stirring rod is sleeved with the second stirring rod, the second stirring rod penetrates through the first stirring rod and extends downwards at the end portion, a plurality of radial vertical second cross bars are arranged on the extension section, and the driving motor drives the first stirring rod and the second stirring rod to rotate in opposite directions. The improvement of the product quality has a multi-dimensional effect, so that the improvement of the concrete fluidity and the improvement of other performances are more obvious. It is worth pointing out that the stirring mill in the application is used for improving the grain shape and grading of machine-made sand, and the product particle size is controlled in a certain range, which is obviously different from the use of the stirring mill in other fields, that is, the superfine grinding of substances.

The invention belongs to the technical field of food preparation, and particularly relates to a method for preparing salted egg yolk powder by using a differential frequency microwave curing method, and the preparation method comprises the following steps: S1, pretreating egg yolk to obtain an egg yolk liquid; s2, preparing the salted egg yolk liquid; s3, preparing egg yolk pickling liquid; s4, performing high-speed centrifugal treatment and high-frequency microwave curing on the egg yolk pickling liquid by using a centrifugal machine to obtain oiled egg yolk particles; s5, performing rotary granulation on the oiled egg yolk particles; and S6, performing low-frequency microwave drying and superfine grinding. The salted egg yolk powder which is good in flavor, sufficient in nutrition and stable and excellent in quality can be obtained and can be widely applied to the fields of leisure food seasoning, catering seasoning and the like.

The invention discloses rosa roxburghii tratt fruit powder and a high-dimensional C rosa roxburghii tratt cake prepared from the rosa roxburghii tratt fruit powder. The rosa roxburghii tratt fruit powder is prepared by the following method: S1, selecting raw materials; s2, cleaning is conducted; s3, removing thorns and kernels; s4, crushing and pulping; s5, carrying out composite enzymatic hydrolysis; s6, degassing and fine filtration; s7, performing vacuum concentration; s8, performing gradient freeze drying; and S9, performing superfine grinding. The high-dimensional C rosa roxburghii tratt fruit crisp prepared from the fruit powder not only can retain nutritional ingredients of rosa roxburghii tratt fruits, but also has a good taste, and has the health-care effects of resisting oxidation, enhancing immunity, delaying senescence and the like.

This invention provides a method for producing fine polyolefin powder in micrometer units, characterized by uniform particle shape, average particle size, and particle size distribution. [Solution] This invention relates to a method for producing polyolefin ultrafine powder and the polyolefin ultrafine powder produced thereby. Specifically, the method involves mixing and heating a polyolefin resin with a xylene mixed solvent to produce a polyolefin molten liquid, then cooling and crystallizing it, and then ultrafine grinding the crystallized reactant through a vacuum wet grinding step and a dry grinding step, in which wet grinding and drying are performed simultaneously with the solvent, thereby providing an ultrafine polyolefin powder with an average particle size of approximately 30 μm or less. A xylene mixed solvent is used as the mixed solvent for melting the polyolefin resin, and the ultrafine polyolefin powder produced thereby can be applied to general-purpose material fields such as construction, civil engineering, and chemical products, and has physical properties that are particularly advantageous for the manufacture of secondary battery electrodes.

The application is a beneficiation method for removing iron and aluminum sesquioxide from high-grade collophanite, and belongs to the technical field of mineral processing. The material obtained by crushing, superfine grinding and grading of raw ore is fed into a heavy separation operation to obtain a heavy separation concentrate and a heavy separation tailing; the heavy separation concentrate is fed into a reverse flotation magnesium removal operation buffer tank, and the heavy separation tailing is thickened, re-ground, classified, and then subjected to positive flotation desliming and positive flotation desilication, and the obtained concentrate is fed into the reverse flotation magnesium removal operation; three backwater pools are built to store positive flotation desilication backwater, reverse flotation magnesium removal backwater and heavy separation operation backwater respectively. The method mainly aims at high-grade high-sesquioxide calcareous collophanite, adopts heavy and float combined separation, divides the raw ore into a heavy separation concentrate and a heavy separation tailing through a heavy separation device, and subjects the heavy separation tailing to positive and reverse flotation to obtain a heavy tailing flotation concentrate. The separation process fully utilizes the advantages of positive and reverse flotation and heavy separation, the process flow is stable, the separation effect is good, high-quality phosphorus concentrate is realized, and low-quality phosphorus concentrate can be used.

The invention discloses a preparation method of sunflower seed protein good in taste and easy to digest, and belongs to the technical field of food processing. According to the method, sunflower protein powder extracted from sunflower seed cakes is used as a raw material and is modified through a composite process of superfine grinding and screening and enzymatic deamidation, firstly, the sunflower protein powder is subjected to superfine grinding and screening, deamidation treatment is carried out through protein glutamine enzymolysis, a solid sample is prepared through freeze-drying or spray-drying after deamidation, and the sunflower protein powder is used as a raw material. Finally, a sunflower protein product with remarkably improved suspension stability, solubility and in-vitro digestibility is obtained. And good solubility and suspension stability bring a smooth and fine taste. The method is clear in technological parameters and controllable in operation, the problems that sunflower protein is prone to aggregation and poor in functional characteristic are effectively solved, the excellent digestibility is more suitable for infants, old people, patients or people with weak digestion functions, the application range of the sunflower protein in the food industry is widened, and the method has high industrialization value.

A MATZHU is prepared by using leaves of Gramineae (Graminae) and Bambusoideae plant as raw materials, and has a stable emerald color, and has an average powder particle size of 800 to 10,000 meshes, and has a total amount of dietary fiber of ≥60%, a content of lignin of ≥20% and a content of minerals of ≥7%, and comprises at least three or more bamboo leaf characteristic components, such as orientin, isoorientin, vitexin, isovitexin, adenosine, δ-hydroxylysine and p-coumaric acid. The method for the MATZHU preparation comprises, in turn, performing blanching and color protection, drying and superfine grinding the raw materials. By utilizing the thermal stability and the light stability of the MATZHU, the MATZHU may be used as a raw food material, a functional ingredient, or a dietary supplement.

The invention belongs to the technical field of preparation processes, and particularly relates to a preparation method of a tendon-relaxing and blood-activating tablet. The invention provides a preparation method of tablets for relaxing muscles and stimulating blood circulation. The method comprises the following steps: a, carrying out superfine grinding on safflower, vinegar-processed rhizoma cyperi, scalded rhizoma cibotii and cortex periplocae into fine powder; b, adding water into calcined natural copper, decocting, adding Chinese starjasmine stem, lycopodium clavatum, herba lycopi, mistletoe and caulis spatholobi, decocting, combining decoction, filtering, standing, concentrating supernate into extract, drying, crushing and sieving to obtain dry extract powder; and c, placing the fine powder and the dry extract powder in a fluidization chamber of a fluidized bed, carrying out top spraying of an adhesive solution, carrying out fluidized bed granulation, drying, and tabletting to obtain the product. The tablet prepared by the method is regular in shape, tidy in edge and free of unfilled corners and tablet cracking phenomena. The tablet is smooth in surface, free of granular sensation and roughness, uniform in color and free of color spots. The tablet has the advantages of moderate hardness, toughness, no loosening phenomenon, compact overall structure, no damage, no stripping, no crack and no scratch, and friability, disintegration time limit and content result all accord with regulations.

The invention discloses a preparation method of a synthetic leather foaming layer with high bio-based content, which comprises the following steps: firstly, by taking biomass mushroom sporocarp as a raw material, implementing room-temperature superfine grinding and surface activation of the biomass mushroom sporocarp through wet mechanochemical surface modification to prepare uniformly dispersed mushroom sporocarp dispersion liquid; then mixing with bio-based waterborne polyurethane with antibacterial and mildew-proof effects, obtaining bio-based foaming layer slurry through a high-speed stirring process, and drying and curing to obtain the light and high-elastic bio-based synthetic leather foaming layer. The bio-based synthetic leather foaming layer disclosed by the invention has high bio-based content (greater than 40wt%), the bio-based synthetic leather foaming layer is prepared by taking the biomass mushroom sporocarp and the bio-based waterborne polyurethane as raw materials, the preparation process is green and environment-friendly, the process is simple, and the bio-based synthetic leather foaming layer is prepared by introducing the bio-based antibacterial and mildew-proof monomer and the hydrophobic monomer into the waterborne polyurethane. The problems that the material is poor in water resistance and is easily attacked by microorganisms due to the mushroom sporocarp are solved.

The invention relates to the technical field of staged energy-saving jet mills, and discloses a staged energy-saving jet mill and an ultrafine crushing method for ores, the staged energy-saving jet mill comprises a mounting rack, a feeding bin is mounted in the mounting rack, the bottom of the feeding bin is connected with a material conveying pipe, an air inlet mechanism is mounted in the mounting rack, and the air inlet mechanism is connected with an air outlet of the feeding bin; the outer portion of the air inlet mechanism is connected with an upper air inlet pipe, the outer portion of the air inlet mechanism is connected with a lower air inlet pipe, and the other end of the lower air inlet pipe is connected with an airflow jet mechanism. In the crushing process, the discharging control mechanism can input crushed powder into the collecting bin at a fixed speed, and when the mass of the powder in the discharging control mechanism is increased, the speed of ore raw materials entering the airflow crushing bin can be controlled, so that the balance of the total amount of the ore raw materials in the airflow crushing bin is guaranteed; and when the total amount of the ore raw materials in the airflow crushing bin is kept balanced, the airflow injection mechanism can perform efficient and high-quality crushing on the ore raw materials.

The invention discloses a preparation method of a foam concrete composite admixture, and relates to the technical field of foam concrete, and the specific preparation method comprises the following steps: adding an admixture, a superfine composite mineral admixture and desulfurized gypsum into a basic raw material according to a certain proportion; foams are prefabricated through a compressed air method and prepared through an air compressor; fully stirring the prefabricated foam and the mixed slurry through a mortar stirrer to prepare foam concrete; the prepared foam concrete is subjected to a drilling and grinding resistance test. Through the arrangement of the superfine mineral admixture, mineral crystal lattices can generate dislocation, bond fracture and recrystallization after superfine grinding, and a water-soluble amorphous structure is formed on the surface, so that water molecules enter the mineral admixture more easily, the hydration reaction is accelerated, and the activity index of the contained mineral is greatly improved; and the superfine composite mineral admixture suitable for producing cement can be prepared by adding a scientific formula, so that the porosity of the cement is reduced, and the density of the cement is improved.

The invention discloses a high-copper-sulfur low-zinc mineral processing technology with non-uniform disseminated particle size, which comprises the following steps: firstly, coarsely grinding ores until the ores with the particle size of-0.074 mm account for 62-63%, carrying out copper-sulfur bulk flotation, and preferentially recovering high-grade copper concentrate 1 (the copper content is more than or equal to 19.32%) and sulfur concentrate (the sulfur content is more than or equal to 46.78%); then copper-zinc bulk flotation is carried out on the copper-sulfur tailings, after obtained rough concentrate is classified through a hydrocyclone, settled sand and dense underflow are combined and ground till-0.074 mm accounts for 78%-80%, and copper concentrate 2 (the copper content is larger than or equal to 20.12%) and zinc concentrate 1 (the zinc content is larger than or equal to 45.87%) are obtained through copper-zinc separation, copper concentration and zinc concentration; and finally, the mixed tailings are graded, fine fraction is directly separated and recycled through a flotation column, coarse fraction is subjected to superfine grinding till-0.044 mm accounts for 90%-93%, then a flotation machine is adopted for re-separation, finally, the copper content of the tailings is reduced to 0.075%-0.083%, the zinc content of the tailings is reduced to 0.082%-0.088%, and efficient separation with the copper recovery rate being 93.78%-94.62% and the zinc recovery rate being 60.21%-62.37% is achieved.

The utility model relates to the technical field of superfine grinding machines, and discloses a superfine grinding machine with an anti-blocking feeding structure, which comprises a machine case and a hopper, a discharge port is arranged on the bottom surface of the machine case, a feeding pipe is arranged on the top surface of the hopper in a penetrating manner, the hopper is fixedly arranged on the top surface of the machine case, and the feeding pipe is arranged on the top surface of the machine case. A discharging pipe is fixedly arranged on the bottom face of the hopper in a penetrating mode, and the discharging pipe fixedly penetrates through the top of the machine box. A fixed grinding seat is fixedly mounted on the inner wall surface of the case, and a grinding seat is movably arranged on the inner side of the fixed grinding seat; a rotating rod is arranged in a center bearing of the top of the hopper in a penetrating mode, the rotating rod extends into the discharging pipe, a spiral plate is installed on the rotating rod, and a material crushing mechanism is installed on the rotating rod. According to the superfine grinding machine with the anti-blocking feeding structure, stable and effective feeding can be guaranteed, blocking during material feeding is avoided, effective grinding of materials is guaranteed, operation is easy, convenient and flexible, and practicability is high.