116results about How to "Improve environmental protection requirements" patented technology

The invention discloses star-shaped hydroxyl polyester adopting polyhydric alcoho as a nucleus and a preparation method and an application of the star-shaped hydroxyl polyester. The preparation method comprises the following steps: enabling 1 to 8 molar caprolactone and 1 to 4 molar anhydride to react for 6 to 10 h at 80 to 140 DEG C by adopting 1 molar small molecular polylasic alcohol as a core molecule to obtain a matrix star-shaped polyester, then reacting with 1 to 4 molar monoglycidyl ether at 90 to 150 DEG C to obtain star-shaped hydroxyl polyester. The prepared star-shaped hydroxyl polyester has the advantages of simple synthesis process, high solid content and low viscosity, a hydroxyl value is 140 to 250 mg KOH/g (80 percent of solid content), the viscosity at 25 DEG C when the solid content is 80 percent is 300 to 3000cp, the star-shaped hydroxyl polyester can be cross-linked with a polyurethane curing agent containing an isocyanate group and can be used for preparing a coating with a high solid content, the VOC content at the construction viscosity is smaller than 380 g/L, and the film performance can satisfy the national standard of the solvent-type dual-component polyurethane wood coatings.

The invention discloses a cantilever-type high-speed vacuum turbine pump and the vacuum pumping method. A high-speed eccentric impeller of 10000 revolutions per minute to 30000 revolutions per minute is used to realize the pumping of vacuum with minus 30kPa to minus 70kPa. The pump comprises a gear increase box, independent pump heads and a high-speed rotor. A large gear of the gear increase box is connected with a prime motor. Independent pump heads stand separately at both sides or a single side of the gear increase box. The pump heads adopt a split structure and comprise a suction inlet, an internal volute body, an impeller stopping cover, a volute shell and an air seal. The high-speed rotor comprises a high-speed gear shaft, a thrust collar, an impeller, and a fastening bolt, and is supported by a sliding bearing on the gear increase box. An impeller cantilever is arranged on the tail end of the high-speed gear shaft. The invention uses a high-speed turbine to realize the rapid vacuum pumping with a large flow. Moreover, a multi-pump head structure can make a single pump realize the multi-position, multi-vacuum degree and simultaneous pumping in the fields of paper making, chlor-alkali chemical industry, and so on and greatly reduce the vacuum system energy consumption. Meanwhile, the pump is provided with the advantage that the pump is concise in the structure, highly reliable, widely applicable, and environment-friendly, and does not need a liquid working ring, and so on.

The invention discloses a preparation method of a ZnIn2S4 photocatalyst by hydrothermal synthesis of ionic liquid microemulsion. The preparation method comprises the following steps: (1) adding a sulfur source into the ionic liquid and a surfactant, heating, and stirring until the sulfur source is dissolved to obtain a mixture A; (2) fully dissolving a divalent zinc salt and a trivalent indium salt in deionized water to obtain a mixture B; (3) transferring and mixing the mixture A and the mixture B in an autoclave having polytetrafluoroethylene lining and uniformly stirring; (4) closing the autoclave, placing the autoclave at 50-90 DEG C and reacting for 4-24 hours and naturally cooling at room temperature to obtain a yellow precipitate; and (5) respectively washing the yellow precipitate with deionized water and anhydrous ethanol, transferring to a drying oven and drying overnight at 40-90 DEG C to obtain the final product. The preparation process is simple, rich in raw materials and low in cost, and the product has the advantages of large specific surface area, high catalytic activity and high hydrogen generation efficiency.

The invention discloses an integrated method for flue gas desulfurization, denitrification and demisting by streamer discharge ammonia method, which comprises the following steps: 1) boiler flue gas containing sulfur dioxide and nitrogen oxides is sent to streamer discharge denitrification reactor after dedusting; 2) The flue gas after the streamer discharge denitrification reactor enters the desulfurization tower and is discharged from the top outlet of the desulfurization tower; 3) The flue gas from the top outlet of the desulfurization tower is demisted and purified by the electric demister and sent to the chimney for discharge. The method of the present invention simultaneously desulfurizes and denitrates, has high demisting efficiency, effectively suppresses ammonia escape, eliminates ammonium salt entrainment, reduces ammonia loss, reduces exhaust smoke turbidity at the outlet, reduces corrosion to tail flue and chimney, and produces nitrogen fertilizer by-product.

The invention discloses a neoprene adhesive subjected to secondary graft modification and a preparation method of the neoprene adhesive. The neoprene adhesive comprises the following raw materials (in percentage by weight): 10%-15% of neoprene, 6.3%-13% of grafted monomers, 0.1%-0.5% of initiating agents, 5%-10% of acetone, 15%-30% of butanone, 10%-20% of ethyl acetate, 10%-20% of dimethyl carbonate, 8%-20% of methyl cyclohexane, 5%-10% of thickening agents and 0.3%-1% of terminating agents. The preparation method comprises the following steps of sequentially adding acetone, butanone, ethyl acetate, dimethyl carbonate and methyl cyclohexane, and uniformly mixing and stirring; adding neoprene, and stirring for 2-4 hours; adding a part of the initiating agents, further stirring, then dropping first grafted monomers to react for 0.5-1 hour, and adding second grafted monomers and the rest of initiating agents; adding a terminating agent, and then adding tackifying resin; regulating viscosity, and then discharging. The neoprene adhesive disclosed by the invention is subjected to the secondary graft modification through multiple monomers. The product has the characteristics of high comprehensive property and good environmental friendliness and is suitable for industries, such as furniture making, shoe making and luggage.

The invention provides a method for manufacturing a multienzyme-complex organic fertilizer by using Chinese herbal medicine. The technical proportioning scheme is that rice husk meal 30%, humic acid 30%, plant ash 19%, bone meal 10%, medical stone 3%, Chinese herbal medicine 3%, syrup 2%, saccharomycetes 1% and strain 2%. The manufacturing method comprises the following steps: (1) smashing raw materials and filtering the raw materials through a sieve with 80-100 meshes, (2) mixing filtered raw materials, the syrup 2% and the saccharomycetes 1% and adding water into mixture to perform fermentation, (3) performing pile turning for one time after fermenting for 24 hours, recovering temperature in a pile to normal temperature after 48 hours, adding the strain 2% into the pile according to the proportion and performing even mixing and package to produce organic fertilizer powder, and (4) pelletizing and packing the organic fertilizer powder according to the organic fertilizer pelletizing process, wherein organic fertilizer pellets are produce when the temperature in processing does not exceed 80 DEG C and pellet humidity is 20-30%.

The tunnel combustion chamber and its constitute of burning coal and organism without smoke and dust relate to boiler, furnace and aerify equipment whose fuel is coal and organism. The tunnel combustion chamber has wide fuel scope. It can carry out the cleanness combustion of the smoke raw coal, the spread coal, the organism, the type coal and the biologic coal. It applies the biologic fuels reasonably and has high thermal efficiency. It realizes the large-scale and mechanical burning. The invention resolves the problem of pollution atmosphere environment by coal burning device. It makes the equipments the cleanness combustion when burning the coals. The small equipment doesn't need air blast and induced air and it can burn. And it doesn't need the ash handling equipment to protect the environment. The invention sends the vapour to the tunnel combustion chamber. It is used to restrain the smoke and translate to the gas fuel. It carries out cleanness combustion when realizes the increase the combustion value of the fuels. It lowers the resources depletion and relief the energy strain. It creates a condition for pushing economy social overall coordination sustained developing.

The invention relates to an anti-corrosion paint for low heavy metal automobile parts and a method for preparing the same, wherein the anti-corrosion paint comprises the following components in part ratio(part): 30 to 40 parts of resin specially used for an anti-corrosion primer, 10 to 20 parts of zinc phosphate, of which the zinc content is lower than 20mg/kg, 10 to 20 parts of solution of nitrocotton resin, 5 to 15 parts of talc powder, 5 to 10 parts of calcium carbonate, 3 to 6 parts of carbon black, 3 to 6 parts of anti skinning agent, 0.5 to 1.0 part of dispersing agent YB-201A, 20 to 35parts of mixed solvent, 0.5 to 1 part of anti-settling agent bentonite, 0.3 to 0.6 part of defoaming agent and 3 to 5 parts of dryer; and the preparation method comprises the following steps of: adding the raw materials in a stirring container in sequence and evenly stirring, dispersing the mixture at a high speed, grinding the mixture by grinding equipment until the fineness of the mixture is below 35mum, and adding the solution of nitrocotton resin, the dryer and the mixed solvent and evenly stirring. The anti-corrosion paint has the advantages of having excellent adhesive force, covering force, decorative property, stability and construction application, withstanding salt fog for 600 hours, meeting higher use requirements on environmental protection and also meeting the requirements oflimiting amount of four types of soluble heavy metals in the national mandatory standards.

The invention discloses a movable type laboratory waste transit system and relates to the technical field of laboratory waste treatment equipment. The movable type laboratory waste transit system consists of a box body 7, an exhaust fan, a refrigerating plant, a sprinkling cooling device, a personal washing device 16 and a protective article cabinet 5. The movable type laboratory waste transit system is characterized by being fireproof, explosion-proof, leakage-proof and anti-static, being low in noise and the like, can realize all-weather intelligent exhaust purification and temperature control, can meet the transit and storage safety and environment-friendliness requirements of laboratory wastes, has the characteristics of safe use and the like, and can be used for temporarily storing various wastes produced in laboratories.

The invention relates to a non-chlorine shrink-proof method of wool fabric. The non-chlorine shrink-proof method comprises an oxidation process and a reduction process, wherein the oxidation process is proceeded in a solution which contains a non-chlorine oxidizing agent; the reduction process is proceeded in a solution which contains a reducing agent. According to the non-chlorine shrink-proof method of the wool fabric, disclosed by the invention, the fabric obtained through the non-chlorine shrink-proof method is environmental-friendly and is easy to care, and the wool shrinkage of the processed wool fabric can be controlled within 8 percent.

The invention discloses multi-enzyme bacterial manure for a tea forest, and a preparation method thereof. The technical scheme is as follows: the bacterial manure comprises 30% of organic humic acid, 25% of turf, 10% of vegetable protein, 10% of plant active enzyme, 5% of syrup, 5% of saccharomycetes, 5% of marmalade, 3% of trichoderma sp, 4% of bacillus subtilis and 3% of bacillus licheniformis. The formula has activated soil, the plant active enzyme for increasing the fertility, and a plurality of probiotics, so that the tea tree blossoms, and the yield is improved. The formula also has the components for resisting diseases and harmful bacteria, so that the capability of the tea tree for resisting plant diseases and insect pests is improved; use of a pesticide is removed. Therefore, the produced tree does not generate the problem of pesticide residue.

The invention discloses a random colorful three-dimensional entity false proof mark and a manufacturing device and method. The pattern of marker particles and a laser moving trajectory are designed through a computer, a sheet is placed on a machining shaft table, focused high-energy pulse spots irradiate the sheet, the marker particles with three-dimensional hollowed-out markers are generated, the marker particles are scattered on transparent colloid or the surface of a marked object randomly, and the random colorful three-dimensional entity false proof mark is formed. By means of the random colorful three-dimensional entity false proof mark and the manufacturing device and method, the cost of raw materials is lowered, the production processes are reduced, production efficiency is improved, emission of waste water, waste materials and waste liquid is reduced, and environmental friendliness is further achieved.

The invention discloses low-VOC (volatile organic compound) hydroxylated acrylic resin and a preparation technology thereof. Raw materials of the hydroxylated acrylic resin comprise a component A, a component B, a component C and a component D in parts by weight, wherein the component A comprises 7-12 parts of xylene, 3-6 parts of butyl acetate and 20-30 parts of polyester resin; the component B comprises 0-1.5 parts of acrylic acid, 0-1.5 parts of methacrylic acid, 8-22 parts of butyl acrylate, 2-4 parts of 2-hydroxyethyl methacrylate, 20-40 parts of styrene, 2-5 parts of isobornyl acrylate, 0-0.8 parts of di-tert-amyl peroxide, 0-2.0 parts of tert-butyl peroxide and 0-0.6 parts of dicumyl peroxide; each of the component C and the component D comprises 0.5-1 part of butyl acetate and 0.1-0.3 parts of tert-butyl peroxide. A product is prepared with a high pressure method. The hydroxylated acrylic resin has higher drying speed and lower VOC, the preparation technology is simple, the production cost is lower, and the application is convenient.

The invention provides a modified industrial anti-corrosion aqueous alkyd coating and a preparation method of same. The alkyd coating includes, by weight, 35-45 parts of aqueous alkyd resin, 15-25 parts of aqueous acrylic resin, 0.2-0.4 parts of a drier, 3-5 parts of a cosolvent, 30-45 parts of pigment filler, 5-10 parts of an antirust pigment, 0.1-0.5 parts of an anti-settling agent, 0.5-1 part of a dispersant, 0.05-0.1 parts of a defoamer, 0.1-0.5 parts of a flatting agent, 0.3-1 part of an anti-flash-rust agent and 15-20 parts of water. The modified industrial anti-corrosion aqueous alkyd coating is high in solid content and low in volatile organic compounds (VOCs), is low in environment pollution, has good adhesion force, is excellent in recoatability, and has good chemical product resistance, water resistance and salt fog resistance. In the invention, through specially designed epoxy-ester resin and selection of the weather resistant pigment and antirust pigment, a paint film, formed by the coating, has excellent comprehensive performances, such as fullness, adhesion force, salt fog resistance and chemical product resistance; especially, the salt fog resistance of the coating is greatly higher than that of epoxy-ester resin in the prior art.

The invention relates to a metal ceramic lubricating oil couplant, which is composed of: 2-16% of metal ceramic; 1-9% of shielding phenol; 1-8% of diphenylamine; 2-9% of ethoxyphenol; 2-12% of benzotriazole; 1-11% of polymethacrylate; 2-12% of phosphorodithioate; 1-11% of polyalkoxyphenol; 1-12% of polyisobutylene succinate; 1-11% of sulfurized isobutylene; and the balance base oil. The invention adopts the boride base metal ceramic, which has high hardness and melting point, low density and is resistant to corrosion, abrasion and extreme pressure. Thus, the prepared product has strong thermal stability, good high temperature extreme pressure performance, strong oxidation resistance, high wear resistance, and strong demulsification ability.

The invention discloses a pipeline suitable for conveying an ultralow-temperature medium. The pipeline comprises a pipeline body and a functional layer arranged on the outer surface of the pipeline body; the functional layer is sequentially provided with a heat-insulation system layer and an anti-collision protection outer layer from inside to outside; the heat-insulation system layer comprises acold-insulation material layer and/or a vacuum cold-insulation layer; the cold-insulation material layer is realized in the mode that the pipeline body is directly wrapped with a cold-insulation material; the vacuum cold-insulation layer comprises an inner-wall sleeve and an outer-wall sleeve, two layers of sleeve pipelines are connected through a support, and a vacuum is formed between the two layers of sleeve pipelines; and a concrete sleeve serves as the anti-collision protection outer layer. According to the pipeline, the pipeline body is paved with expansion joints and the cold-insulationto meet process and soil environment requirements, the pressure bearing capacity of the pipeline meets the road requirement, a comprehensive scheme meets the relevant requirements of the burying environment, and the problem that chemical raw materials at the ultralow temperature (minus 162 DEG C) cannot be conveyed in a buried mode can be solved.