36results about How to "Realize continuous large-scale production" patented technology

The invention belongs to the technical field of graphene, and particularly relates to a method for continuously preparing graphene nanoplatelets by means of grinding stripping.The method comprises the steps that crystallized organic matter is uniformly dispersed in a graphite precursor through solvent dispersion, deformation force produced through repeated crystallization of the crystallized organic matter is utilized for enabling the graphite layer frame distance to be increased, and intercalated graphite is formed; the intercalated graphite is sent to a grinding stripping machine, the stripping and grinding effect of shear force formed in the mutual friction process of media and the graphite material is utilized, the intercalated graphite is stripped, and graphene nanoplatelets are formed; screening separation is conducted on stripped graphite through a vibrating screening machine, unstripped graphite is screened out to be stripped again, and the uniformly distributed graphene nanoplatelets are obtained.The number of layers of the prepared graphene nanoplatelets ranges from 10 to 100, the crystal structure is complete, the high-quality graphene nanoplatelets are produced in an efficient, low-cost and continuous mode under a high shear condition, the preparation process is green and environmentally friendly, and a significant market value is achieved.

The invention discloses an electrochemical preparation method of a ternary anode material. According to the method disclosed by the invention, pure nickel, cobalt and manganese metals and electric energy are used as raw materials and a green electrochemical synthesis method is adopted for synthesizing a nickel, cobalt and manganese salt compound by means of electrolysis at normal pressure and normal temperature, and the ternary anode material-LiNixCoyMnzO2 can be obtained after lithium addition reaction, spray-drying and high-temperature treatment, wherein x is greater than 1 and less than 1, y is greater than 0 and less than 0.8, z is greater than 0 and less than 1, and x+y+z is equal to 1. Compared with the prior art, the electrochemical preparation method disclosed by the invention can be used for reducing the cost of raw materials and energy consumption, simplifying the process, also reducing the environmental pollution and improving the product performances. An electrochemical synthesis technology adopted by the method is an environmentally-friendly chemical process, the pure metals are used as anode materials and no impurities are introduced, so that the concentration controllability and the high purity of nickel ions, cobalt ions and manganese ions are guaranteed; meanwhile, the zero emission of wastewater to the environment is realized, and the continuous large-scale production can be realized.

The invention discloses an industrial device for continuously producing graphene powder and a method thereof. The device comprises a liquid storage tank, a flow valve, a plurality of ultrasonic processors, a microwave reaction kettle, a vibrating screen, a mixing tank, a reservoir, a booster pump, a spray drying tower and a cyclone centrifuge. The method for preparing graphene comprises the following steps: adjusting the surface tension by controlling the proportion of a dispersant, thus obtaining evenly dispersed grapheme through the synergistic effect of continuous ultrasonic and micro waves after evenly mixing with graphite; adding a bonding solution to graphene dispersion liquid to prepare slurry; carrying out spray drying and pelleting on the slurry by adopting centrifugal spray drying equipment. Large-scale production of the graphene is achieved by adopting a continuous ultrasonic-micro wave combined mode, pelleting of the graphene can be achieved by combining with spray drying, the environmental pollution is reduced, and transportation and application are facilitated.

The invention discloses a method for preparing a fuel cell membrane electrode with a sealing frame. The process is simple and easy to realize. The method comprises the following steps: feeding a polymer electrolyte membrane and a sealing frame material with a layer of hot melt adhesive into a rolling device of a hot pressing platform, jointing the sealing frame material to edges of two sides of the polymer electrolyte membrane through heating rolling, and laminating a gas diffusion layer coated with a catalytic layer on two sides of the polymer electrolyte membrane so as to form a membrane electrode component. In the preparation process, a catalyst liquid is directly coated on the gas diffusion layer instead of the polymer electrolyte membrane, so that damage to a catalytic layer is reduced, the situation that later process is affected by swelling deformation of the membrane in the spraying process is avoided, the formation procedure can be simplified, continuous large-scale production of GDE and MEA can be conveniently achieved, and the production efficiency is greatly improved.

The invention relates to a beta-carotene microcapsule and a preparation technology thereof. The technology comprises the following steps: mixing corn starch which contains beta-carotene crystals and microhole ocentyl succinic anhydride and serves as a core material, an oil phase consisting of plant oil, an antioxidant and the like and a water phase consisting of a wall material, an antioxidant, a dispersant, water and the like according to a ratio, homogenizing to prepare microemulsion, and performing spray drying to prepare beta-carotene microcapsule powder. In a preparation process, no organic solvent needs to be added, and an obtained product keeps the bioactivity, is stable to the photo-thermal property and is extremely high dissolvability in cold water; processing, transportation and storage are facilitated; the safety, the flowability, the taste and the water solubility of the product are greatly improved; the beta-carotene microcapsule is a high-quality health food and food pigment raw material. The yield of the beta-carotene microcapsule prepared by the technology is high, and the preparation method is suitable for batch preparation of the beta-carotene microcapsules; continuous large-scale production is realized.

The invention discloses a high-frequency quenching inductor. The high-frequency quenching inductor comprises a cooling liquid inlet pipeline, a cooling liquid outlet pipeline, a first graphite block, a second graphite block and at least one hollow coil. The first graphite block is provided with at least one boss, and the second graphite block is provided with at least one matched boss. The bosses and the matched bosses are in one-to-one correspondence and are arranged symmetrically. The starting ends of the hollow coils are communicated with the cooling liquid inlet pipeline, extend to the matched bosses after winding around the bosses by one circle and are communicated with the cooling liquid outlet pipeline after winding around the matched bosses by one circle. Portions, respectively winding around the bosses and the matched bosses, of the hollow coils are U-shaped. The high-frequency quenching inductor has the advantages that uniformity in induction quenching of components and uniformity in product quality are guaranteed, continuous mass production of heat treatment of small shaft type or spring components is achieved, and production efficiency is improved remarkably.

The invention discloses a production equipment for producing organic fertilizer from sludge, which comprises a feeding device for feeding the sludge; a sedimentation tank connected with the feeding device and used for stirring the sludge raw materials and then precipitating; mixing The feeder is connected with the sedimentation tank, and is used to add ingredients to the sludge raw material and stir evenly; the fermentation device, connected with the mixer, is used to ferment the mixed raw materials; the drying device is used to dry the fermented raw materials , to get organic fertilizer. The invention can improve the deficiencies of the prior art and improve the efficiency of sludge recycling.

The invention discloses a preparation method of edible fulvic acid salt, and belongs to the technical field of chemical engineering. The method is characterized in that a mode of combining an oxidization degradation activation technology and a molecular weight cutting grading technology is used for using medical stone and young coal as raw materials; oxidization and activation are performed through a green oxidizing agent system; then, the novel mineral-based fulvic acid salt is obtained through film filtering purification and enriching; the prepared product has high purity, high activity, high water solubility and few other impurities; the characteristics of safety, environment protection, no irritation, no side effect, direct eating performance, long shelf life and the like are realized; in addition, the operation is relatively simple; the extraction rate is high; the continuous scaled production can be realized.

The invention relates to a fiber composite material, and particularly relates to a fiber / long-carbon-chain nylon in-situ composite material and a preparation method. The fiber / long-carbon-chain nylon in-situ composite material comprises the components: 1-20wt% of high-performance fiber and 80-99wt% of long-carbon-chain nylon salt, preferably 5-16wt% of high-performance fiber and 84-95wt% of long-carbon-chain nylon salt, wherein the high-performance fiber is selected from at least one of aramid fiber, carbon fiber and fiberglass. The preparing process is simple; and the strength and toughness of the prepared fiber / long-carbon-chain nylon composite material are significantly improved as compared with those of the pure long-carbon-chain nylon prepared by the same process.

The invention belongs to the technical field of graphene and particularly relates to a method for preparing graphene continuously by using a rotary homogenizer. Graphite and a nano phase-change material are mixed uniformly and then are mixed with an intercalator, the mixture is heated at the temperature of 40-80 DEG C, the nano phase-change material is changed into liquids from a solid state, gaps are formed among graphitic layers, the intercalator is expediently intercalated in a layered structure of graphite, the interlayer acting force of the graphite is weakened, stripping of the graphite is facilitated, intercalated graphite is sent to the rotary homogenizer, graphite is continuously sheared and stripped by means of shearing force produced during rotary stirring, the graphite is stripped layer by layer, damage of the mechanical shearing force to a graphene crystal structure is prevented, and the graphene with uniformly distributed layers is prepared. The yield of the graphene prepared with the method is high, the graphene has 10-100 layers and has few structure defects, high-quality graphene is prepared rapidly and continuously, the production cost of the high-quality graphene is greatly reduced, large-scale production of graphene is promoted, and the graphene has remarkable market application value.

The invention discloses a high-frequency quenching inductor. The high-frequency quenching inductor comprises a cooling liquid inlet pipeline, a cooling liquid outlet pipeline, a first graphite block, a second graphite block and at least one hollow coil. The first graphite block is provided with at least one boss, and the second graphite block is provided with at least one matched boss. The bosses and the matched bosses are in one-to-one correspondence and are arranged symmetrically. The starting ends of the hollow coils are communicated with the cooling liquid inlet pipeline, extend to the matched bosses after winding around the bosses by one circle and are communicated with the cooling liquid outlet pipeline after winding around the matched bosses by one circle. Portions, respectively winding around the bosses and the matched bosses, of the hollow coils are U-shaped. The high-frequency quenching inductor has the advantages that uniformity in induction quenching of components and uniformity in product quality are guaranteed, continuous mass production of heat treatment of small shaft type or spring components is achieved, and production efficiency is improved remarkably.

The invention discloses a multilayer electromagnetic shielding film and a preparation method thereof. According to the multilayer electromagnetic shielding film, shielding layers are arranged from the outermost layer to the sub-bottom layer and the bottom layer is a resin insulating layer; the resin insulating layer is a pure resin layer; each of the shielding layers is of a layered structure formed by adding conductive filler to matrix resin. The conductive filler comprises one or more of nickel powder, silver powder, a carbon nanotube and graphene. In two adjacent shielding layers, The adding amount of the conductive filler of the lower shielding layer is greater than that of the lower shielding layer. The electromagnetic shielding property of the multilayer electromagnetic shielding film prepared by the invention is excellent, and the mechanical strength and toughness are good; meanwhile, the production process is simple, the cost is low, and full continuous scaled production can be achieved.

The invention belongs to the technical field of graphene, and particularly relates to a method for continuously preparing graphene nanoplatelets by means of grinding stripping.The method comprises the steps that crystallized organic matter is uniformly dispersed in a graphite precursor through solvent dispersion, deformation force produced through repeated crystallization of the crystallized organic matter is utilized for enabling the graphite layer frame distance to be increased, and intercalated graphite is formed; the intercalated graphite is sent to a grinding stripping machine, the stripping and grinding effect of shear force formed in the mutual friction process of media and the graphite material is utilized, the intercalated graphite is stripped, and graphene nanoplatelets are formed; screening separation is conducted on stripped graphite through a vibrating screening machine, unstripped graphite is screened out to be stripped again, and the uniformly distributed graphene nanoplatelets are obtained.The number of layers of the prepared graphene nanoplatelets ranges from 10 to 100, the crystal structure is complete, the high-quality graphene nanoplatelets are produced in an efficient, low-cost and continuous mode under a high shear condition, the preparation process is green and environmentally friendly, and a significant market value is achieved.

The invention provides a method for extracting high-purity mogroside V, which comprises the following steps: freezing high-temperature pretreatment, normal temperature and ultra-high pressure extraction, ZTC-II clarifier clarification, 10 micron C 18 Preparative column purification, concentration and drying etc. The invention reduces the damage to the natural active ingredients of mogroside V through freezing high temperature treatment and normal temperature ultra-high pressure treatment, and extracts mogroside V with a purity of up to 99.9%. At the same time, compared with the traditional heating and reflux extraction method, the extraction efficiency is significantly improved and the extraction time is shortened. Time, but also save energy, to achieve continuous large-scale production.

The invention relates to high-content krill oil microcapsules and a preparation technology thereof. The technology comprises the following steps: by taking krill oil and microporous starch as core materials, adding a small amount of xanthan gum into oil phase; and by taking chitosan oligosaccharide and oxidized starch as wall materials, mixing an oil-phase antioxidant, a water-phase antioxidant, an emulsifier, a dispersant and the like in proportion to prepare micro-emulsion, and performing spray drying to prepare krill oil microcapsule powder. The obtained krill oil microcapsule product contains 10-30 percent of phosphatide and keeps biological activity, improves the light-heat stability, acid-alkali stability and the like of krill oil, has good solubility in cold water, and is relatively easy to process, transport and store, safety, fluidity and water solubility are greatly improved, the application range of krill oil is enlarged, and the krill oil is an excellent health-food raw material, and is widely applied to dairy products, beverages, health-care products, baking, tablets and the like. The yield of the krill oil microcapsule powder prepared according to the technology is high, the phosphatide content of the product is high, and the technology is suitable for mass preparation of krill oil microcapsule powder and realizes continuous large-scale production.