67results about How to "Meet the requirements of the sustainable development strategy" patented technology

The invention discloses a method for applying peanut shells to synchronously prepare nanocellulose crystal and sugar. The method uses the peanut shells as a raw material to extract cellulose, adopts an enzymatic hydrolysis method to prepare the nanocellulose crystal, controls the enzymolysis degree and obtains sugar liquor at the same time, belonging to the technical field of nanostructure materials. The nanocellulose crystal preparation method does not adopt an inorganic acid hydrolysis method generating a lot of waste acid and impurities but adopts the cellulose enzymatic hydrolysis method with mild process conditions and strong specificity, being green and environmentally-friendly and conforming to the national strategy of sustainable development requirements. The method uses the peanut shells as the raw material to replace high-cost raw materials such as cotton, chemical pulp or microcrystalline cellulose and the like, so that the comprehensive utilization value of the peanut shells is increase, the current situations of waste of resources and economic losses as most of the agricultural and sideline products are used as wastes or fuels are changed, and the economic and social benefits are brought while the environment is improved. A lot of sugar liquor is produced during preparation, and the purpose of making the most of things is achieved.

The invention discloses an anti-aqueous dispersion synchronous grouting material with large specific gravity and low consistence. The anti-aqueous dispersion synchronous grouting material consists of the following components in parts by weight: 100 parts of coal ash, 10-30 parts of slaked lime, 5-20 parts of cement, 10-50 parts of phosphorus gypsum, 0-200 parts of machine-made sand, 200-400 parts of shield mud and sand, 0.1-0.5 part of a water reducing agent, 0.05-0.2 part of a thickening agent and 80-120 parts of water. The shield mud and sand is used for replacing river sand and bentonite in a traditional grouting material, and the shield mud and sand and machine-made sand are taken as fine aggregates, so that the problem of resource shortage for natural sand is solved; moreover, the coal ash discharged at a power station and the phosphorus gypsum produced at a phosphorus chemical plant are reasonably utilized, so that the resource utilization of industrial waste is realized. The grouting material has the characteristics of good filling property, long castable time, large specific gravity, low consistence, anti-aqueous dispersion performance, segment floating prevention and the like, is prominent in environmental protection performance and low in cost, and can be widely applied to the shield segment grouting engineering and the like.

The present invention provides an urban house refuse gasification melting incineration treatment method and its equipment. It is characterized by that the high-temperature air obtained from waste heat of smoke produced by recovering, gasifying, melting and incinerating refuse can be introduced into gasifying furnace and incinerator furnace, and can be used as air required for refuse gasification and combustion-supporting air required for melting and incinerating refuse, so that it can ensure refuse stable gasification and complete combustion, and can completely solve dioxine and secondary pollution of heavy metals and others. Said treatment equipment system is formed from storage bin, gasifying furnace, dust-collecting device, incinerator furnace and high-effective heat storage chamber, etc.

A process for electrostatic decarbonization of flyash containing 0.04-1 kg/cu.m of dust features that the flyash is delivered into a negative-electrode high-voltage electrostatic separator at 0-1800 cu.m/h of air flow. As the carbon and inorganic dust in the flyash have different electric properties, they are adsorbed by different plate electrodes with different polarities in opposite directions,so separating them from each other. Its decorbonizing rate is 86.74% and its output rate is 38.86%.

The invention provides a method for stabilizing a subgrade by adopting a soil stabilizing agent. The method comprises the steps of mixing materials comprising a strong oxidant, a dispersing agent, an ionic polymer activating agent and a stabilizing catalyst together to prepare the soil stabilizing agent; preparing the selected subgrade material according to the soil with the plasticity index of 7-35; diluting the soil stabilizing agent in water in a volume ratio of (1:100)-(1:200), and simultaneously adding 3-20 of carbide slag, 3-12 of lime or 2-8 of cement to the subgrade material according to the earthwork weight ratio to be mixed; spraying and compacting: computing the volume ratio (generally 0.016-0.02%) of the prepared soil stabilizing spray solution according to the earth volume of compacted soil, converting the volume ratio to weight ratio when adding the usage amount, spraying the soil stabilizing agent with density of 1.7-1.75g/cm<3> into the soil used for the subgrade, and forming the subgrade through compaction. The method has the advantages that harmful substances can not be produced; the method is simple in construction technology, is convenient to operate, is favorable for reducing the construction amount, is high in soil stabilizing speed, has good effects, conduces to greatly shortening the construction period, is more suitable for the characteristics of local soil properties, and has more obvious stabilizing effects.

The invention discloses a preparation method for an amorphous alloy coating. The preparation method includes the following steps of preparation of alloy powder, pretreatment of a base material, coating and laser cladding. Firstly, the alloy powder is prepared from, by atomic mole ratio, 34% of cobalt, 29% of chromium, 8% of iron, 8% of nickel, 7% of silicon and 14% of boron; then the H13 steel base material is subjected to surface treatment and drying treatment, and the prepared alloy powder is dried together; afterwards, the alloy powder is prearranged on the surface of the H13 steel base material; and finally, a pulse laser device is used for conducting cladding on the prearranged base body in an argon protection hood. According to the alloy coating prepared through the method, about 85% of an amorphous phase is contained in the upper portion, and good metallurgical bonding between the coating and the base body can be achieved; the coating has high microhardness and abrasion resistance and is good in heat stability; and in addition, by means of the method, the production cost of the amorphous alloy coating can be greatly lowered, and the method meets the requirement of the strategy of sustainable development of China, and has great production significance.

The invention relates to a method for preparing polyurethane adhesive by using waste polyuret0hane recovery product by using montmorillonite. The method comprises the following steps: (1) using the waste polyurethane elastomer as a raw material, adding an alcoholysis agent and an auxiliary alcoholysis agent, degrading the waste to obtain regenerated polyol by heating and under a certain of reducing atmosphere condition; (2) secondarily modifying the montmorillonite; (3) adding auxiliary and the secondarily modified montmorillonite in the regenerated polyol to obtain the polyurethane adhesive. The regenerated polyol obtained through the invention is stable in property, uniform in molecular weight, and small in viscosity number, and a hydroxyl value meets the use requirement of the polymer polyol; the secondarily modified montmorillonite is used for modifying the adhesive, the use performance and the applicable range of the adhesive are greatly improved, the tensile strength is improved by 38% and more, the bending strength and the bending modulus are improved by 40% and more.

The invention provides a modified PVC cable material. The modified PVC cable material is prepared from the following raw materials: in parts by weight, 60-80 parts of PVC resin, 15-25 parts of a fluorine-boron-containing cyclopentadienyl iron cyclic copolymer, 3-8 parts of ultra-high molecular weight polyethylene fiber, 6-10 parts of amino-terminated polyurethane, 5-10 parts of fly ash, 2-5 partsof oxidized paraffin, 5-10 parts of waste tyre powder and 0.5-1.5 parts of a coupling agent, wherein the fluorine-boron-containing cyclopentadienyl iron cyclic copolymer is obtained through a copolymerization reaction of 2-cyano-3-(pyridyl-2-amino)-ethyl acrylate, E-2-[3,5-di(trifluoromethyl)phenyl]vinyl boronic acid pinacol ester, enadenine and methylvinyl [1] cyclopentadienyl iron silole. The invention also provides a preparation method of the modified PVC cable material. The modified PVC cable material has more excellent high temperature resistance, low temperature resistance, flame retardancy, insulation and aging resistance, recycling of waste resources can be achieved, environmental protection is achieved, and requirements of the sustainable development strategy are met.

The invention belongs to the technical field of construction, and relates to a full prefabricated pre-stress assembly type structure and a construction method thereof. The full prefabricated pre-stress assembly type structure is characterized in that a structural main body is of a frame structure; columns, beams, plates, doors and windows, walls and stairs are prefabricated by factories; grooves and holes are formed in the columns, beams, and plates according to a total design drawing, the quality of components can be ensured, complex operations such as template supporting, maintenance and demounting can be avoided in a construction site, and the full prefabricated pre-stress assembly type structure can save labors, is high in efficiency, is good in quality, is light and convenient, and can avoid construction pollution; compared the conventional assembly type structures, the full prefabricated pre-stress assembly type structure is characterized in that the assembly and stability are excellent; the size of a desired cross section is small at the request of an equal bearing capacity design value, and the anti-shock performance can be ensured. The full prefabricated pre-stress assembly type structure is environment-friendly, can save energy and reduce consumption, can meet the demand of a sustainable development strategy of the construction industry, can be widely used for variousmultiple high frame structures, and can achieve good economic and social benefits.

The invention discloses a special corundum self-flowing casting material for stainless steel ladle and a construction method of the special corundum self-flowing casting material. The special corundum self-flowing casting material comprises the following components in percentage by weight: brown corundum, fine brown corundum powder, recycled fine corundum powder, recycled fine air brick powder and pure calcium aluminate cement, and a dispersing agent and water further need to be added in construction. In construction, a mold needs to be constructed, the water, the dispersing agent and the self-flowing casting material which are well stirred are poured into the mold, and the material can flow through any surface, can be filled in any space and can be rapidly bonded with residual materials. The special corundum self-flowing casting material for stainless steel ladle, which is disclosed by the invention, is good in high-temperature resistance and can meet the high-temperature condition of the stainless steel ladle.

The invention discloses a method for producing high-strength sound and heat insulation refractory bricks from complete recycled materials. The method completely uses recycled raw materials, and adopts papermaking white sludge, straws and recovered steel factory refractory bricks, and the B layer of every produced refractory brick is a compact refractory brick structure and plays a good role in fireproofing, and the A layer of every refractory brick is a sound and heat insulation layer, so the refractory bricks produced in the invention have the advantages of low cost and good effects, and accord with national sustainable development strategy requirements.

The invention provides a method for preparing a gypsum whisker. The method comprises the following steps of: (1) drying limestone sludge to obtain limestone powder; (2) adding a certain amount of limestone powder to dilute sulphuric acid for reaction to generate calcium sulphate; (3) filtering the calcium sulphate obtained from the step (2), then adding water to prepare a calcium sulphate solution and controlling the concentration of the calcium sulphate solution, then adding zinc sulphate as a catalyst for hydrothermal reaction, and filtering to obtain a hemihydrate gypsum whisker; (4) drying the hemihydrate gypsum whisker to obtain an anhydrous gypsum whisker. The method for preparing the gypsum whisker, which is provided by the invention, changes the wastes into valuables by utilizing the limestone sludge regarded as waste residues and waste sulphuric acid liquor which are generated in the steel industry to prepare the anhydrous gypsum whisker with excellent properties. The method disclosed by the invention can not only be used for reducing the production cost of the gypsum whisker, but also be used for protecting the environment, thereby generating preferable influence on the harmonious development of society and environment.

The invention discloses an environment-friendly building board, which is prepared from the following raw materials in parts by weight: 20 to 30 parts of waste thermoplastic ABS plastic, 60 to 80 partsof modified 9-fluorenone-2,7-dicarboxylic acid/3,6-diaminocarbazole polycondensate, 10 to 15 parts of 1,3-divinyltetraethoxydisilane modified glass fiber/mullite fiber composite material, 1 to 3 parts of an initiator, 2 to 4 parts of probenazole and 5 to 10 parts of a plasticizer. The invention further discloses a preparation method of the environment-friendly building board. The environment-friendly building board disclosed by the invention has the advantages of excellent comprehensive performance, good performance stability, excellent flame retardance and weather resistance, high strength,high toughness, long service life and good environment friendliness.

The invention discloses an assembly type breakwater protective block body. The assembly type breakwater protective block body is of an assembly type structure. The assembly type breakwater protective block body is of a hollow square frame structure formed by splicing two cuboid cement boards with the middle hollowed-out parts of the same specifications and four cuboid cement columns of the same specifications. A precast upper ring beam is a square frame. The four sides of the precast upper ring beam are provided with first safety limiting grooves. A reserved steel dowel hole is reserved in the center of each first safety limiting groove. The stand columns are arranged under the first safety limiting grooves. A precast lower ring beam is arranged below the stand columns. Tail-end threaded anchor rods penetrate through corresponding steel dowel reserved holes, corresponding column center reserved holes and the corresponding reserved steel dowel holes in sequence to fix the whole center control protective block. The assembly type breakwater protective block body has the advantages that construction waste recycled aggregates are adopted and are friendly to environment; industrialized production of the assembly type structure is realized, less manpower and material resources are consumed, and construction is simple and fast; the assembly type breakwater protective block body is low in self-weight, convenient transport and high in safety, and cannot cause chain destruction; and the assembly type breakwater protective block body is flexible and changeable in use and can be used in cooperation with existing protective block bodies.

The invention provides vegetable oil-based latex, which is synthesized by taking vegetable oil as a raw material, and is a bio-based material, wherein the epoxidized vegetable oil monomer has a conversion rate of more than 98%, so that the requirement of emulsion polymerization is met. According to the invention, the vegetable fat-based latex prepared through emulsion polymerization can be directly coated on a base material to be dried in the air to complete adhesion to be used as a pressure-sensitive adhesive, and can also be dried in the air to be heated and cured to be used as a thermosetting adhesive, and tests show that the latex has good adhesion; and the vegetable fat-based latex can be used as bio-based epoxy resin after being cured at high temperature by adding a curing agent, and the cured epoxy resin has excellent mechanical properties.

The invention relates to the technical field of gas purification, in particular to a sulfur wetting agent for wet chelated iron desulfurization as well as a preparation method and a use method thereof. The sulfur wetting agent comprises the following components in percentage by weight: 10-30% of a nonionic surfactant, 5-10% of oleyl alcohol polyoxyethylene ether, 2-5 parts of a dispersing agent and the balance of water; the nonionic surfactant is one or a mixture of more of alkyl polyglucoside, cardanol polyoxyethylene ether and fatty alcohol-polyoxyethylene ether, so that the use requirementscan be met, and the ecological environmental protection requirements can also be met. The sulfur wetting agent is prepared by stirring and mixing, and has the characteristics of simple process and convenience in preparation. When in use, the sulfur settling agent is directly added into chelated iron desulfurization liquid according to a certain proportion, and has the characteristics of convenience in use and excellent sulfur settling effect.