56results about How to "Production process energy saving and environmental protection" patented technology

The invention relates to a modified asphalt mixture and preparation and construction methods thereof, particularly relates to rubber modified asphalt and preparation and construction methods thereof and belongs to the technical field of engineering. The rubber modified asphalt and the methods solve the construction problem that the mixture is thick and sticky by adding trans-polyoctenamer rubber (TOR) into the asphalt mixture, further reduce the stirring temperature of the rubber asphalt mixture, reduce processing equipment, improve production process, and are favorable for preventing water damage by a design method of continuous dense gradation. The preparation process of the mixture improves the using performance of the rubber asphalt mixture. The rubber modified asphalt and the methodshave the advantages of promoting the comprehensive utilization of waste tires by paving asphalt pavements with waste rubber powder modified asphalt, reducing great environment stress brought by blackpollution, saving resources, improving the pavement performance of the asphalt mixture, improving the service quality of the pavement, prolonging the service life of the pavement, reducing cost, and improving performance of products. Compared with the conventional modified asphalt production process, the preparation and construction methods have the advantages of energy saving and environmental protection and are convenient for construction.

The invention relates to a fly ash composite admixture for concrete, and a preparation method of the admixture, and belongs to a building material for building, and a preparation method of the building material. The fly ash composite admixture and the preparation method mainly solve the technical problems that the existing mineral admixture is too large in slump, larger in chemical shrinkage and self-shrinkage, and high in use cost. The fly ash composite admixture for the concrete adopts the technical scheme that the fly ash composite admixture is prepared by taking 20-30wt% of slag, 4-15wt% of stone chips, 58-73wt% of fly ash and 1-4wt% of desulphurization gypsum as raw materials. The preparation method comprises the following steps that the fly ash is smashed into ultrafine fly ash by ultrafine smashing equipment; the slag, the stone chips and the desulphurization gypsum are mixed uniformly and ball-milled into powder; the ultrafine fly ash and the ball-milled powder are mixed and homogenized; and the fly ash composite admixture for the concrete is prepared.

The invention relates to a functional astragalus polysaccharide drink with functions of immunity enhancement and fatigue resistance and a preparation technology of the functional astragalus polysaccharide drink. The preparation method comprises steps as follows: a dry astragalus root is cleaned, dried in air and then smashed into astragalus powder; purified water is added for reflux extraction; ethanol is used for polysaccharide precipitation, a precipitate is dried, purified water is added to dissolve the precipitate, and then a clarifying agent is added for standing and clarification; centrifugation is performed for obtaining supernatant, and the supernatant is a concentrated liquid of astragalus polysaccharide; the concentrated liquid of the astragalus polysaccharide is evenly mixed with drink additives and purified water, wherein the drink per kg contains 200-400 mg of the astragalus polysaccharide, 4.5-6 g of lysine, 1-1.5 g of inositol, 8-32 g of citric acid, 10-20 mg of nicotinamide, 260-390 mu g of folic acid, 1.4-2.1 mg of vitamin B6, 2.4-3.6 mu g of vitamin B12, 0.02-0.1 mg of lactic acid, 20-60 g of a sweetening agent and the balance of purified water. The functional astragalus polysaccharide drink tastes comfortable without medicine flavor, is golden yellow, has high transparency with no suspended particles or sediment, has health-care function and good effect and has a single characteristic ingredient.

The invention relates to an anti-oxidation and anti-fatigue astragalus root functional drink and a preparation process thereof. The preparation process comprises the following steps: cleaning and air-drying dry astragalus roots, and then grinding the dry astragalus roots into astragalus root powder; adding purified water for reflux extraction, and then adding a clarifying agent for standing and clarifying; centrifuging supernatant liquid to obtain an astragalus root extracting solution; and uniformly mixing the astragalus root extracting solution with drink additives and purified water. Each 1kg of the drink contains 20-50mg of total saponins of astragalus roots, 4.5-6g of lysine, 1-1.5g of inositol, 10-40mg of citric acid, 10-20mg of nicotinamide, 260-390mu g of folic acid, 1.4-2.1mg of vitamin B6, 2.4-3.6mu g of vitamin B12, 0.02-0.07mg of lactic acid, 20-60g of a sweetening agent and the balance of purified water. The prepared astragalus root functional drink has comfortable taste, is free of medicine smell, has an amber color and high transparency, is free of suspended particles or precipitates, has health-care functions and good effects, and contains a single symbolic ingredient.

The present invention discloses pure herbal weight losing tea bag health-care food and a preparation method thereof, and relates to the technical field of health-care food. The health-care food is prepared from the following Chinese herbal medicines in parts by weight: 20-50 parts of folium sennae, 10-40 parts of green tea, 10-30 parts of cassia seeds, 10-20 parts of lotus leaves and 10-20 parts of rhizoma alismatis. The 5 herbal raw materials are directly crushed, the crushed raw materials are mixed evenly according to a certain ratio, the mixed medicinal materials are subjected to a ring die extrusion and granulation, and the granulated raw materials are sub-packaged into 2.0 g-5.0 g/bag using a teabag machine. The technology all uses physical methods, does not add any technological accessory materials, and is free of waste water, waste gas and waste residue pollutions. The health-care food is simple, convenient and highly efficient, and energy saving and environmentally friendly.

The invention relates to a filtering and regeneration system for a waste non-woven fabric. The system comprises a filtering assembly and a material conveying assembly. The filtering assembly comprisesa housing, a top cover is arranged on the housing, a primary filtering segment and a fine filtering segment are arranged in an inner cavity of the housing in sequence, a conical panel with first communication holes is disposed between the top cover and the primary filtering segment, a clapboard is disposed between the primary filtering segment and the fine filtering segment and made by stacking apartition net and a corrugated partition plate from top to bottom, second communication holes are formed in the corrugated partition plate, and partition net holes are formed in the partition net. Asealing baseplate made by stacking a baseplate body and a bottom net with third communication holes is arranged at the bottom, and the third communication holes are formed by connecting conical guideholes with through holes. The material conveying assembly includes a material conveying bin, a material conveying screw rod and a driving motor. An upper end opening of the material conveying bin is connected to a lower end opening of the housing, the bottom of the material conveying bin is provided with a discharge opening, an inner cavity of the material conveying bin is provided with the horizontally placed material conveying screw rod, and one end of the material conveying screw rod is connected with the driving motor.

The invention discloses a production and preparation method of 2-methyl-4-isopropylaniline. The method comprises the following steps: using isopropyl benzene as a starting raw material, carrying out homogeneous nitrification in a concentrated sulfuric acid medium to obtain a nitroisopropyl benzene mixture; and reducing and separating the reaction mixture by iron powder to obtain p-isopropylaniline with the content of more than or equal to 97%. The nitration yield of the reaction is 72.4%, and the reduction yield is 92.3%; the separation yield is 93.6%, and the total yield is 62.6%. Compared with the prior art, the method has the beneficial effects that the novel production process is energy-saving, environment-friendly, small in environmental pollution and suitable for large-scale production.

The invention discloses an energy-saving and environment-friendly corrugated paperboard production technology. The technology includes the following steps of S1, paint preparation, S2, raw paper mounting, S3, paint spraying, S4, raw paper preheating, S5, core paper forming, S6, gluing and compounding, S7, drying and shaping, and S8, forming. According to the technology, reinforcing coatings are sprayed on the surface of surface paper, the surface of core paper and the surface of inner paper respectively, and then gluing and compounding are carried out to obtain a corrugated paperboard. Under the combined action of active ingredient cationic starch and nanocrystalline cellulose of the reinforcing coatings, the strength of the obtained corrugated paperboard is higher than that of corrugatedpaperboard which has the same gram weight and is not processed with the reinforcing coatings, and therefore the mechanical strength of the raw paper large in recycled fiber amount is well improved. The consumption of recycled fiber is increased, the consumption of new fiber materials is reduced, meanwhile, paint in use is water-based paint, components come from renewable plant raw materials, and therefore the production technology of the corrugated paperboard saves more energy and is more environmentally friendly.

The invention discloses an oxygen-enriched decomposition process of a tungsten raw material, and relates to the technical field of ammonium paratungstate .The oxygen-enriched decomposition process comprises the following steps: S1, mixing a flotation type tungsten raw material, a leaching agent, water and/or washing water to obtain leaching slurry; and S2, introducing oxygen-enriched gas into the leaching slurry, wherein the oxygen-enriched gas and the leaching slurry react, and after the reaction is finished, obtaining mixed slurry of a sodium tungstate solution and leaching residues, wherein the oxygen-enriched gas is gas with the oxygen volume percent content being greater than 20.9%. The method has the beneficial effects that the oxygen-enriched gas is added in the leaching process, so that the surfactant in the raw materials can be effectively removed in the leaching process, the influence of the surfactant on the production process is overcome, the production process is energy-saving and environment-friendly, the economic benefit is good, industrialization is extremely easy to realize, and the quality of ammonium paratungstate can be improved.

The invention relates to the technical field of metallurgical chemical industry, and provides a flotation type tungsten raw material extraction all-wet-process smelting process. The process comprises the steps of leaching, solid-liquid separation, purification, sulfuration, acid regulation and molybdenum removal, extraction, reextraction and crystallization to produce an ammonium paratungstate product, wherein the leaching process comprises the following steps of uniformly mixing the flotation type tungsten raw material with a leaching agent, water and/or washing water and a defoaming agent in a leaching reactor, and leaching for 0.1-8 hours at the temperature of 100-250 DEG C to obtain mixed slurry of a sodium tungstate solution and leaching residues; and the defoaming agent comprises one or more of an organic silicon defoaming agent, castor oil, aldehydes, alcohols, ketones, kerosene and tertiary amine. The defoaming agent is added in the leaching process, so that the influence of a surfactant in the sodium tungstate solution on the production process can be effectively inhibited, the feed liquid conveying time is effectively shortened, a better solution purification effect is obtained, a high-quality ammonium paratungstate product is obtained, and production accidents can be reduced.

The invention belongs to the technical field of high polymer materials, and particularly relates to a manufacturing process of a low volatile organic compound (VOC) polyurethane automobile instrumentboard. The polyurethane soft automobile instrument board is manufactured by taking a material A and a material B as raw materials, wherein the material A is composed of polyether polyol, vegetable oil, a tertiary amine catalyst, silicon oil, a chain extender and water, and the material B is composed of liquefied methylene diphenyl diisocyanate (MDI) and crude MDI. The low-volatile and reaction-type raw materials are selected for the polyurethane composition provided by the invention. The production method is simple, is easy to implement, and has the advantages of environmental friendliness, nopollution and the like. The content of volatile organic compounds of the prepared instrument board is reduced on the premise that other performance is not influence, and requirements of a medium-high-end automobile market on polyurethane low-VOC automobile instrument boards are met.