58results about How to "Meet the needs of industrial mass production" patented technology

The invention relates to a method for extracting essences from tea leaves, which belongs to the technical field of separation and extraction. Essences with high purity can be obtained through the method. The method for extracting essences from tea leaves includes adopting supercritical CO2 extraction steps of the tea leaves, wherein pressure is from 20 MPa to 50 MPa when the tea leaves are extracted by supercritical CO2, extraction temperature ranges from 35 DEG C to 65DEG C, and separation temperature ranges from 70 DEG C to 80 DEG C.

The present invention belongs to the field of effective Chinese medicine component extracting technology, and is especially supercritical CO2 extraction process of total rhubarb anthraquinone. Rhubarb powder through or through no acid solution treatment is soaked in alcohol or other solvent and extracted in a extracting reactor with supercritical CO2 as extractant and alcohol as entrainer and solvent at pressure of 20-60 Mpa and temperature of 30-60 deg.c for 0.5-3 hr. The extracted matter is decompression separated in a separating tank at 15-45 deg.c, and alcohol solution of total rhubarb anthraquinone is collected and decompression concentrated and dried to obtain total rhubarb anthraquinone.

The invention discloses equipment and method for detecting weld joints of turbine components. A rotation driving mechanism is used for driving the turbine components to rotate at a certain speed, then a 3D laser scanning camera is used for carrying out laser scanning photographing on weld joint areas, and photos of the whole circumference of each weld joint are collected and analyzed through computer software; the 3D imaging technology is used for displaying the weld joint areas on a 2D plane, different height messages of the surfaces of scanned parts are represented through different colors, rapid detection of the appearance quality of the weld joints can be achieved, and welding surface flaws with the minimum diameter being 0.01 mm can be detected. Compared with manual visual detection, the detection method is high in precision, and detection is not prone to omission; due to the fact that the photographing speed of the camera and the processing capacity of the software are high, detection of a single part can be completed within 15 seconds, and therefore efficiency is high, and the requirement for industrial mass production can be met; the cost of the equipment and method is only one sixth of that of computed tomography (CT) equipment.

The invention relates to a method of extracting metal from high-calcium metallic slag, belongs to the field of metallurgy, and aims at providing a method of efficiently extracting metal from high-calcium metallic slag. The method of extracting the metal from the high-calcium metal slag comprises the following steps: a, material preparation: uniformly mixing high-calcium metallic slag and an additive to obtain a mixed material, wherein the metal in the high-calcium metallic slag is at least one of vanadium and chromium, the additive is sodium aluminate, or a mixture of at least one sodium carbonate, sodium bicarbonate and sodium hydroxide and at least one of aluminum hydroxide and aluminum oxide, the weight proportion of the high-calcium metallic slag calculated by the content of a metal element to the additive calculated by Na2O is 0.8-2.5; b, calcination: aerobically calcining the mixed material for 2-7 hours at the temperature of 700-1,000 DEG C; and c, leaching: leaching the calcined material to obtain a solution containing the metal element.

The invention provides an aerogel composite material with a heat insulation and stealth function and a preparation method of the aerogel composite material, and belongs to the technical field of aerogel composite materials. The aerogel composite material comprises a nano-fiber aerogel matrix layer, a nano-fiber aerogel conductive layer and a nano-fiber aerogel heat insulation layer. According to the invention, under the condition of not using an adhesive, the effective fixation of aerogel particles and the tight combination between the base material and each functional layer can be realized by utilizing the unique hydrophilicity and pore structure of the nanofibers, and the heat insulation performance of the base material layer and the heat insulation layer is utilized; the electromagnetic shielding and controllable heat transmission performance of the conducting layer can achieve the heat insulation and electromagnetic infrared double-shielding synergistic function, and the invention has application prospects in the fields of national defense military industry and functional textiles.

The invention provides a colorful graphene quantum dot coating and a preparation method and application thereof, and relates to the technical field of coatings. The colorful graphene quantum dot coating is mainly prepared from the following raw materials in parts by mass: 5-40 parts of graphene quantum dots, 3-10 parts of pigment, 90-120 parts of matrix resin, 330-370 parts of deionized water and 450-550 parts of filler; and the sum of the raw materials is 1,000 parts. The technical problem that an existing coating is single in color, is lack of colorfulness, and easily causes visual aesthetic fatigue of people is solved. The antibacterial performance is good, colors with a wide chromatography range can be shown, therefore, visual aesthetic fatigue of people is relieved effectively, and demands of people to diversity of colors of coatings are met.

The invention provides a radon-adsorbing and anti-radiation coating as well as a preparation method and an application thereof and relates to the technical field of coatings. The radon-adsorbing and anti-radiation coating is mainly prepared from raw materials in parts by mass as follows: 5-50 parts of graphene-polyacrylic acid, 90-120 parts of matrix resin, 330-370 parts of deionized water and 450-550 parts of pigment and filler, and the sum of the raw materials is 1000 parts, wherein graphene-polyacrylic acid is prepared from modified graphene and polyacrylic acid through urethanation. The technical problem of big potential safety hazard caused by high content of radioactive radon gas indoors due to the fact that radon released from building materials and building foundation soil is accumulated indoors easily is solved, precipitation of gas in walls and formations can be hindered, radon in air can also be efficiently adsorbed, so that dwelling environment is effectively improved, harm of radon to human health is reduced, and body health of people is guaranteed.

The invention provides a multi-structure synergistically-enhanced thermal insulation aerogel/polymer composite material and a preparation method thereof. Aerogel/polymer composite fibers with skin-core structures are prepared by taking a mixture of a first thermoplastic polymer and aerogel powder as skin layers and taking a second thermoplastic polymer as core layers; and the aerogel/polymer composite fibers with the skin-core structures are subjected to plasma treatment and then processed into non-woven fabric, and thus the multi-structure synergistically-enhanced thermal insulation aerogel/polymer composite material. By means of the mode, the synergistic effect of the skin layers and the core layers in the aerogel/polymer composite fibers with the skin-core structures can be utilized, so that the multi-structure synergistically-enhanced thermal insulation aerogel/polymer composite material has high mechanical strength and good heat preservation and insulation performance; and the synergistic effect of the skin-core structures, highly rough surface structures and highly fluffy stacked structures in the aerogel/polymer composite material can be utilized to achieve excellent heat preservation and heat insulation effects, thereby satisfying the requirements of practical application.

The invention discloses a novel extraction process and particularly relates to a clean extraction process of chondroitin and high-quality type II collagen coproduction using pig and cattle nasal bones. The clean extraction process includes a chondroitin production process route and a high-quality type II collagen production process route. The clean extraction process has the advantages that the chondroitin is extracted through long-time extraction at room temperature and under a weak alkali condition, the extracted chondroitin is quite high in purity, oxidation decoloring using hydrogen peroxide in the extraction process is not needed, the chondroitin is extremely few in non-chondroitin impurities, the non-specificity disaccharide content of the chondroitin is not more than 4%, the yield of the chondroitin reaches 30-35%, and the requirements of large-scale industrial production are satisfied; the protein content of the type II collagen powder is not less than 90%, the ash content of the type II collagen powder is not more than 0.5%, the sodium residue of the type II collagen powder is not more than 100mg/kg, the hydroxyproline content of the type II collagen powder is not less than 9%, the type II collagen powder satisfies sanitation requirements, bright white in color, free of peculiar smell and meets food application standards, and product value is achieved to the maximum extent.

The invention provides an attached bioprosthetic valve and a preparation method thereof. The animal valve subjected to decellularization treatment is cut, the two animal valve slices are attached to the two sides of the drug controlled release fabric adsorbed with the vascular endothelial growth factors respectively, the drug controlled release fabric is clamped between the two animal valve slices, and the biological valve stent is formed under the bonding effect of the medical biological glue, and sewing is performed by using polylactic acid yarns to prepare the attached bioprosthetic valve. By means of the mode, the synergistic effect between a traditional suture technology and a cell growth induction technology can be fully exerted, the mechanical property of the heart valve is enhanced through yarn suture, meanwhile, cells are induced by growth factors to grow towards the interior of the valve along the yarn, endothelialization of the biological valve is promoted, therefore, the attaching type bioprosthetic valve with high mechanical property and high biocompatibility is obtained at the same time. The preparation method provided by the invention is simple in process and can meet the requirements of industrial large-scale production.

The invention belongs to the field of drug synthesis. A preparation method of azilsartan is characterized by comprising the following steps that 1) a compound 5 reacts with hydroxylamine hydrochlorideunder the alkaline condition to generate a compound 6 by heating reaction; 2) the compound 6 reacts under the action of carbonyl diimidazole under triethylene diamine to generate a compound 4; 3) thecompound 4 generates hydrolysis reaction under the alkaline condition to obtain a crude azilsartan product; 4) the crude azilsartan product is refined to obtain the azilsartan. The preparation methodof the azilsartan has the advantages of short reaction time, high product purity and high yield, and is suitable for large-scale industrial production.

The invention discloses a microwave method for large-scale and rapid improvement of hydrophilicity of a carbon base, and belongs to the technical field of functional materials. The carbon base withoutany treatment such as carbon cloth and carbon fibre is put into a microwave reactor full of air or N2 to be subjected to microwave reaction for 5 to 600 s, or the carbon base the surface of which isdripped with water or soaked wet with organic solvent is put into microwave to be subjected to microwave reaction for 5 to 600 s, the hydrophilicity of the carbon base is greatly improved. The experiment that a microwave method is adopted to improve the hydrophilicity of the carbon base has the characteristics that the required time is short, that reaction temperature reaches as high as thousandsof Celsius degrees, that the equipment cost is low, that the experimental steps are simple, that no harm is created to the environment and the like. Requirements for preparing hydrophilic experiment of carbon cloth on a large scale in industry are met.