35results about How to "In line with the strategy of sustainable development" patented technology

The invention discloses low-density composite foaming cement and a preparation method thereof, relating to a light building material. The foaming cement is prepared by adopting a normal-temperature foaming technology, and comprises the following components in parts by weight: 100 parts of cement, 10-50 parts of active admixture, 1-5 parts of redispersible emulsion powder, 1-4 parts of water repellent, 0.5-1.5 parts of cellulose ether, 0.3-0.7 parts of reinforced fiber, 0.2-0.5 parts of foam stabilizer, 3-8 parts of foaming agent and 50-80 parts of water. The method comprises the following preparation steps of: proportionally mixing and stirring the cement, active admixture, redispersible emulsion powder, water repellent, cellulose ether, reinforced fiber, foam stabilizer, and water into cement slurry; adding the foaming agent; and stirring, molding by casting and naturally curing. The foaming cement disclosed by the invention has the advantages of low volume weight, small heat conducting coefficient, small shrinkage ratio, high intensity, integration of heat preservation, sound insulation, fire prevention and low carbon, simple and convenient production preparation process and easiness in controlling.

The invention discloses a non-halogen flame-retardant thermoplastic elastomer composite with SEBS (Styrene-Ethylene / Butylene-Styrene) as a base material, comprising the following components in parts by mass: 25-45 parts of SEBS, 15-25 parts of polyester elastomer, 5-15 parts of flame-retardant plasticizer, 5-15 parts of softening plasticizer, 15-25 parts of flame retardant, 3-5 parts of compatibilizer, 0.1-1 parts of antioxidant and 0.5-2 parts of processing aid. A preparation method of the non-halogen flame-retardant thermoplastic elastomer composite with SEBS as the base material comprises the following steps of: (1) mixing all materials in a mixer uniformly; (2) adding the mixture in a double-screw extruder, and melt extruding, stripping, cooling and cutting into granules so as to obtain the finished product. The non-halogen flame-retardant thermoplastic elastomer composite with SEBS as the base material has the advantages of good flame retardant property, good mechanical property, and easiness of manufacturing and molding.

The invention belongs to the field of solid concrete filled steel tubes in industrial and civil construction in coastal regions and islands, and provides an overall sea concrete filled steel tube component and an application method thereof. The overall ocean concrete filled steel tube component is manufactured by using coral as coarse aggregate, sea sand as fine aggregate and adding seawater and cement in a certain proportion. The mixing proportion is the same as that of normal concrete, but the coarse aggregate is the coral and the fine aggregate is the sea sand. The overall ocean concrete filled steel tube can be used for replacing the normal concrete component in mainland region and can be used for various buildings in sea regions to realize the aim of using local materials, so that the virgin coral, sea sand and seawater in the sea can be sufficiently utilized, the strategy of sustainable development is satisfied; and furthermore, the transportation cost is saved.

The invention provides high-crack-resistance light-weight high-strength self-compacting concrete and a preparation method thereof, belonging to the technical field of concrete materials. According to the high-crack-resistance light-weight high-strength self-compacting concrete provided by the invention, besides cement, water, light sand, river sand, lightweight aggregate, a composite admixture and a functional additive used in conventional concrete, microbeads, a shrinkage reducing agent and polypropylene fibers are added, shale pottery sand is adopted as the light sand, red mud ceramsite is adopted as the lightweight aggregate, the shale pottery sand and the river sand are mixed according to a weight ratio of 10: 9, and the composite admixture is formed by mixing slag powder, fly ash and silica fume. The volume weight of the concrete provided by the invention is reduced by 40-50% compared with the volume weight of concrete with the same strength grade, and the drying shrinkage value of the concrete is only about 80% of the drying shrinkage value of concrete with the same strength grade.

The invention discloses a fully-assembled square steel tube beam-column connecting joint and a construction method thereof. The fully-assembled square steel tube beam-column connecting joint comprisesan upper joint plate, a lower joint plate is fixedly connected to the lower end of the upper joint plate through bolts, a plurality of bolt holes are formed in the upper joint plate and the lower joint plate, and square holes are formed in the middle of the upper joint plate and the middle of the lower joint plate; sleeves are fixedly arranged on the upper joint plate and the lower joint plate; square steel pipe columns are arranged in the sleeves of the upper joint plate and the lower joint plate respectively in a sleeved manner and fixedly connected with the sleeves; a square steel cross beam and a square steel longitudinal beam are also included, and L-shaped steel connecting pieces are fixedly connected to the two sides and the upper surface of the square steel cross beam and the square steel longitudinal beam; one ends of the L-shaped steel connecting pieces at the two sides of the square steel cross beam and the square steel longitudinal beam are fixedly connected with the upperjoint plate, and the other ends of the L-shaped steel connecting pieces are fixedly connected with the square steel cross beam or the square steel longitudinal beam; and one ends of the L-shaped steel connecting pieces on the upper surfaces of the square steel cross beam and the square steel longitudinal beam are fixedly connected with the square steel pipe columns, and the other ends of the L-shaped steel connecting pieces are fixedly connected with the square steel cross beam or the square steel longitudinal beam. The fully-assembled square steel tube beam-column connecting joint is simplein construction, the workload of welding and assembling can be reduced, and the construction cost can also be saved.

The invention provides a foamed concrete composite wall plate core and a preparation method thereof. The composite wall plate core is obtained by mixing a cement slurry and foams and hardening a mixture; the cement slurry is prepared from a solid raw material and water; the solid raw material of the cement slurry is prepared from the following components in percentage by mass: 70-95 percent of portland cement, 0-30 percent of fly ash, 0-30 percent of building regenerated garbage micropowder, 1-4 percent of fiber and 2.5-9.5 percent of additive. The composite wall plate core realizes resource circulation utilization of a solid waste, expands a use way of building solid wastes, lowers the cost, saves the natural resources, accords with energy conservation, emission reduction and sustainabledevelopment and has the advantages of light weight, high strength, good insulation effect, sound insulation, earthquake damage alleviation and the like.

The invention discloses preparation and application of bacillus megatherium BM22 and spore powder thereof. The strain is preserved in CGMCC (China General Microbiological Culture Collection Center) onDecember 15, 2017, and has the preservation number being CGMCC No.15070. The bacillus megatherium BM22 is used as a strain to prepare the spore powder through seed culture, fermentation culture and kieselguhr adsorption. The bacillus megatherium BM22 provided by the invention has the special effects on photinia fraseri ulerythema; in addition, the stress resistance, good storage performance, hightemperature resistance, low temperature resistance and drying resistance are realized; the strain is applicable to commercials; the serious result of environment pollution due to chemical medicine can be avoided; the characteristics of sustainability and low cost are also realized.

The invention discloses a basalt fiber hollow insulation partition plate, prepared from a dry material and water; the dry material comprises, by weight, 15-25% of cement, 55-75% of furnace slag, 5-10% of expanded perlite, 0.1-0.5% of basalt fiber, 0.3-0.7% of magnesium stearate, and suitable water. The partition plate prepared herein has high compressive strength and high flexural capacity, and also has the advantages of light weight, good thermal insulation and acoustic insulation, good fireproof property and waterproof property, good convenience of installation and the like. In addition, the partition plate according to the invention features waste utilization and environmental protection, the energy resources that are in shortage increasingly are saved, piling sites are saved, the production cost is lowered, and the living environment of human is protected.

The invention discloses a preparation method of a water-based photoresponse self-repairing leather finishing agent. By taking amphiphilic nano cellulose as a Pickering stabilizer and a mixture of an acrylate first monomer, an acrylate second monomer, a fluorine-containing acrylate monomer and a vinyl coumarin monomer as an oil phase, emulsification is performed to obtain a Pickering emulsion; and the water-based photoresponse self-repairing leather finishing agent is prepared through a Pickering soap-free emulsion polymerization technology. The preparation method of the water-based photoresponse self-repairing leather finishing agent solves the problem that a fluorine-containing polyacrylate finishing agent in the prior art does not have self-repairing capability.

The invention belongs to the technical field of cable material production, and more specifically relates to a halogen-free flame-retardant cable material. The halogen-free flame-retardant cable material is prepared from 100 to 140 parts of polyvinyl chloride resin; 4 to 12 parts of epoxidized soybean oil; 0.3 to 0.8 part of polyethylene wax; 15-30 parts of diisononyl phthalate, 20-28 parts of dioctyl terephthalate, 4-10 parts of a calcium-zinc composite stabilizer, 10-18 parts of magnesium hydroxide, 15-27 parts of aluminum hydroxide, 10-18 parts of magnesium-aluminum hydrotalcite, 3-9 parts of plant ash, 1-4 parts of paraffin oil, 2-6 parts of zinc oxide and 0.5-1.8 parts of hydroxyl silicone oil. The halogen-free flame-retardant cable material is capable of avoiding the defects in the prior art, and magnesium hydroxide and magnesium-aluminum hydrotalcite are added into the cable material, so that the polymerization degree of the cable material is improved, the mechanical strength ofthe cable material is improved, and meanwhile, the flame resistance of the cable material is improved.

The invention relates to a method for preparing water-soluble cellulose from waste cotton, belongs to the technical field of recycling of waste textiles and can solve the problem of low recycling rateof waste cotton. Cotton cellulose is prepared from a waste fabric with the highest cellulose content in nature as a raw material after hydrothermal extraction. Chloroacetic acid and isopropanol are taken as complex etherifying agents, cellulose is subjected to methylation modification, and finally, water-soluble sodium CMC (carboxymethyl cellulose) with high degree of substitution is obtained. The method has the advantages that waste cotton fiber is effectively recycled, and sodium CMC with excellent performance is prepared. The process flow is short, and a high value-added utilization way for the waste cotton fiber is found.

The invention relates to the field of steel recycling, in particularly relates to a steel scrap recycling device. The steel scrap recycling device comprises a clearing device, a conveying device and apressing device, wherein the lower end of the clearing device is fixedly connected with a base, the interior of the base is fixedly connected with a driving mechanism, the conveying device is arranged right above the clearing device, an electrical cabinet is arranged on the left side of the upper end of the base, and the conveying device, the pressing device and the driving mechanism are electrically connected with the electrical cabinet. By arranging the clearing device and the driving mechanism, the waste rolled steel and steel plate is put into a rust removing box in the clearing device, and the driving mechanism is used for driving a propeller to rotate, so that a water flow inside the rust removing box rotates, dust and soil are separated from the steel and falls into the lower end of a filter screen through impact of the water flow conducted on the dust and soil on the surface of the steel inside the rust removing box, the cleanliness of the steel is improved, and when the steelis remelted and forged in a furnace, the quality of the steel produced by the secondary production is prevented from being influenced by the dust and soil on the surface of the steel.

The invention discloses a method for preparing alcohol by honey, which comprises the step of extracting the alcohol by distilling mature fermented mash. The mature fermented mash is prepared according to the following steps: the honey is diluted by water to obtain a diluted sugar liquid; a flocculating agent is added into the diluted sugar liquid, and a clear sugar liquid is obtained after a precipitate is filtered; the clear sugar liquid is diluted by water to obtain a diluted clear sugar liquid; and ammonium sulfate containing 21 percent of nitrogen and industrial phosphoric acid containing 70 percent of nitrogen are added into the diluted clear sugar liquid respectively, and alcohol yeast is added after the diluted clear sugar liquid is stirred evenly to obtain the mature fermented mash. The method has the advantages of simple process, high utilization rate of raw materials, wide sources of the raw materials, no land competition with grains and so on, and provides a brand-new production raw material and a method for alcohol production.

The invention relates to a heating wire for a lighter. Two metal bars are fixed with the heating wire into a whole, and are connected with the lighter in a plugging mode so as to insert the heating wire into a circuit. The heating wire is electrified and heated to the temperature of 400 to 450 DEG C, so a cigarette can be easily ignited; moreover, no combustion or waste is generated during ignition; the manufacturing process is environment-friendly, the heating wire has low cost and long service life and is convenient to maintain and use.

Provided is air compressor oil. The air compressor oil is prepared from, by mass, 30%-40% of base oil, 1%-5% of an antioxidant, 1%-5% of a rust inhibitor, 1%-5% of an antiwear agent, 1%-2% of a clearing agent, 1%-2% of a dispersing agent and the balance modified vegetable oil, defoamer is added, and the concentration of the defoamer is 50-100 ppm of the sum of the mass of the modified vegetable oil, the base oil, the antioxidant, the rust inhibitor, the antiwear agent, the clearing agent and the dispersing agent. The invention further provides a preparation method of the air compressor oil. Accordingly, the open flash point can reach 270-300 DEG C, and the pour point is -40 DEG C or below.

The invention discloses an electric heating wire of a lighter, which is used for a manual power generation type cigarette lighter. The electric heating wire is lighted by directly contacting a lighted object and is in plugging connection with the lighter and a circuit. The electric heating wire can be made into a linear type and a plane type. External energy substances, such as fuel oil, liquefied flammable gas, batteries and the like are not required, and combustion is not generated in the lighting process so as to avoid generating waste gas and wastes. The electric heating wire becomes red to reach 400-450DEG C after being electrified to easily light one cigarette, and in addition, the electric heating wire prevents wind and moisture. The electric heating wire has the advantages of low cost and long service life, and the accelerated service life h / DEG C of the electric heating wire is more than or equal to 80 / 1300.

The invention relates to the technical field of plastic materials, especially to a plastic material with high flame retardancy. The plastic material with high flame retardancy is prepared from the following ingredients (by weight): 25.8-26% of SEBS, 14-14.1% of naphthenic oil, 2.35-2.45% of silicones powder, 10.92-11.16% of PP, 3.55-3.63% of POE, 5.93-6.08% of MCA, 36.8-37.75% of a flame retardant, 0.015-0.022% of a stabilizing agent, and 0.018-0.025% of a stabilizer. The plastic material prepared from the above ingredients has good flame retardancy and mechanical properties. A finished product prepared from the plastic material is easy for processing molding. During the processing, no unfavorable smell will be generated. Meanwhile, the plastic product prepared from the compound will not give off toxic substances if electrified and heated or exposed to the sunlight for a long time, is green and environment-friendly, and accords with the strategy of sustainable development. The compound is suitable for being used as a cable material.

The invention provides an absorbent for removing sulfur dioxide in flue gas, which comprises the following components in percentage by weight: 25-30% of main absorption component, 0.01-0.1% of thermostable salt inhibitor and the balance of water, the main absorption component is a mixture of 4, 4 '-(1, 2-ethylidene) dimorpholine and 4, 4'-(oxybis (methylene)) dimorpholine. The absorbent provided by the invention has the characteristics of strong absorption performance, large absorption capacity, low cost, good regeneration effect, small generation amount of thermostable salt, delay of equipment corrosion and the like, and well overcomes the defects of the existing sulfur dioxide removal technology. The invention also provides a method for circularly removing sulfur dioxide in flue gas by using the absorbent. According to the method disclosed by the invention, the operation in an environment with a relatively high pH value is realized, and the requirements on equipment materials are reduced; and absorption desulfurization at a relatively high temperature is realized, so that the energy consumption of the process is reduced.

The invention relates to a magnetoelectric lighter. In the magnetoelectric lighter, energy is provided by hand-operated or hand-powered generating; and a heating wire is fixed with a heating wire by two metal rods and is in plug-in connection with the lighter, so that the heat wire is connected to a circuit, wherein the energizing temperature of the heating wire is between 400 and 450 DEG C, so cigarettes can be easy to ignite. The magnetoelectric lighter has long service and low cost, does not use additional energy substances such as oil, gas, batteries and the like, does not combust and generate waste gas and wastes in the process of ignition, is non-pollution to environment in the process of manufacturing and is safe, practical, economic and convenient.

The invention discloses a method for rapidly removing ammonia nitrogen by using an extreme environment microalgae non-sterile fermentation method, and application thereof. The method comprises the following steps: S1, culturing microalgae in an extreme environment to a logarithmic phase to obtain a seed solution; S2, adding an organic carbon source into unsterilized ultrahigh ammonia-nitrogen industrial wastewater, and adjusting the pH value to 1-4 to obtain an ultrahigh ammonia-nitrogen wastewater culture medium, wherein the ammonia nitrogen concentration of the culture medium is higher than2800 mg / L; and S3, inoculating the seed solution subjected to adaptive culture into a light fermentation tank filled with the ultrahigh ammonia-nitrogen wastewater culture medium, carrying out intermittent fed-batch fermentation, and when the ammonia-nitrogen concentration in the light fermentation tank is lower than 20 mg / L, updating the wastewater culture medium to enable the ammonia-nitrogen concentration in the fermentation tank to be higher than 4700 mg / L. According to the invention, the method is high in ammonia nitrogen removal efficiency, short in treatment period and environmentally friendly, high-value phycobiliprotein can be recycled, and comprehensive development and utilization of resources are achieved.

The invention relates to the field of elevators, in particular to an energy-saving elevator. The energy-saving elevator comprises a car body, a car frame, a limiting seat, a buffering mechanism, a damping mechanism, a protection mechanism, an energy-saving mechanism, an electric box, a main controller, a speed measuring sensor, a counterweight mechanism and a sling, wherein the car frame is fixedly connected to the outer side of the car body; the limiting seat is movably connected to the lower end of the car body; the buffering mechanism is fixedly connected to the lower end of the car body; the damping mechanism is arranged inside the upper end of the limiting seat; and the protection mechanism is arranged at the bottom end inside the car body. According to the energy-saving elevator, theenergy-saving mechanism is arranged, and a sound control switch in the energy-saving mechanism is used for controlling an illuminating lamp and an exhaust device; when people enter the elevator, thesound control switch enables the exhaust device and the illuminating lamp to work through induction sound; and when no one is in the elevator, the illuminating lamp and the exhaust device are poweredoff, so that the output of electric power of the elevator is reduced, the electric power resources are saved, and the strategy of national sustainable development is met.

The invention provides environment-friendly synthetic ester air compressor oil. The oil is prepared from modified vegetable oil, synthetic ester, a high-temperature antioxidant, an antirust agent, anantiwear agent, a pour point reducer and an antifoaming agent, wherein the mass percent of the modified vegetable oil in the air compressor oil is 45-50%, the mass percent of the synthetic ester in the air compressor oil is 45-50%, the mass percent of the high-temperature antioxidant in the air compressor oil is 1-2%, the mass percent of the antirust agent in the air compressor oil is 1-2%, the mass percent of the antiwear agent in the air compressor oil is 1-2%, the mass percent of the pour point reducer in the air compressor oil is 1-2%, and the anti-foaming agent is 50-100 ppm. The invention further provides a preparation method of the air compressor oil. According to the environment-friendly synthetic ester air compressor oil, the open flash point can be up to 300-350 DEG C, the pour point is minus 45 DEG C or lower, the service life can be up to 10,000 h or more, and the rotary oxygen bomb time is 3,000 min or more.