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

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 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 discloses a new method for preparing fuel oil by co-pyrolysis of biomass and waste plastic, belonging to the field of solid waste disposal and utilization technology and biomass energy. The method comprises the following steps: mixing evenly the biomass and the waste plastic according to a certain ratio; placing the mixture in a pyrolysis reactor; heating the mixture to the needed pyrolysis temperature for a pyrolytic reaction; introducing the gas generated from the pyrolysis into a refined reaction tower for catalytic reforming; carrying out rectification on the reformed liquid product to obtain fuel oil with different cut fractions; and returning a small quantity of the combustible gas and the residues to the pyrolysis reactor for burning and being used as supplementary heat source. In the method, the biomass and the waste plastic are comprehensively utilized in co-pyrolysis and synergetic promotion is generated by the biomass and the waste plastic, so that the oil productivity and the oil quality are improved. The novel method not only resolves the environmental problems caused by white pollution, but also relieves the energy crisis caused by petrochemical resource exhaustion, thereby having wide application prospect and being able to generate huge social and economic benefits.

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 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 discloses the preparation and application of a methylotrophic Bacillus B18 and its liquid preparation. The strain has been preserved in the China General Microorganism Culture Collection Management Center on September 18, 2017, and the preservation number is CGMCC No.14641 . The liquid preparation can be prepared by using the methylotrophic bacillus B18 as the strain, culturing seeds and fermenting. The methylotrophic Bacillus B18 provided by the invention has special effects on Phellodendron rot, and has stress resistance, good storage performance, high temperature resistance, low temperature resistance, and drying resistance, is suitable for commercial production, and can not only avoid chemical drugs. The serious consequences of polluting the environment, and it is sustainable and low-cost.

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 a waste chamotte brick regeneration and utilization method. The method comprises steps that: waste chamotte bricks are crushed and sieved; and the waste chamotte brick powder is doped into cement, such that a cementing material of concrete is prepared. An addition amount of the waste chamotte brick powder is 0-30wt% of that of the cementing material, wherein 0% is not included. The invention also discloses a concrete doped with the waste chamotte brick powder. The price of the waste chamotte brick powder is generally lower than that of cement. Therefore, when cement ispartially replaced by waste chamotte brick, the cost of concrete is reduced. Meanwhile, the production of cement is reduced, such that natural clay, limestone resources and coal resources can be saved. Also, discharge of environmental pollutants such as carbon dioxide and sulfur dioxide caused by cement production can be reduced from the source. The waste chamotte bricks are recycled and utilized, such that landfill and treatment of the waste chamotte bricks can be reduced, and treatment cost of construction wastes can be reduced. Therefore, the method and the concrete provided by the invention assist in protecting the environment, and satisfy the sustainable development strategy.

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 containing70 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 discloses a method for rapidly removing ammonia nitrogen by using a microalgae non-sterile fermentation method in an extreme environment and an application thereof. The method includes the following steps: S1, cultivating microalgae in extreme environments to the logarithmic growth phase to obtain seed liquid; S2, adding organic carbon sources to unsterilized ultra-high ammonia nitrogen industrial wastewater, and adjusting the pH value to 1- 4. Obtain an ultra-high ammonia nitrogen wastewater medium; wherein, the ammonia nitrogen concentration of the medium is higher than 2800mg / L; S3, inoculate the seed liquid after adaptive cultivation into a photofermentation tank equipped with an ultrahigh ammonia nitrogen wastewater medium for intermittent Feed-fed fermentation, when the ammonia nitrogen concentration in the light fermenter is lower than 20mg / L, update the wastewater medium to make the ammonia nitrogen concentration in the fermenter higher than 4700mg / L. The method of the invention has the advantages of high ammonia nitrogen removal efficiency, short treatment period, environmental protection, high-value phycobiliproteins can be recovered at the same time, and comprehensive development and utilization of resources are realized.

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 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 discloses circulating fluidized bed sulfur fixation ash aerated concrete, which is characterized in that the circulating fluidized bed sulfur fixation ash aerated concrete comprises the following ingredients by weight parts: 65 to 95 parts of fluidized bed sulfur fixation ash, 5 to 20 parts of quicklime, 0 to 15 parts of cement, 0.12 to 0.18 part of aluminum powder and 56 to 65 parts of water. A preparation method of the aerated concrete comprises the following steps of powder grinding of the sulfur fixation ash, material preparation according to the composition and the mixture ratio, mixing and stirring, air bleeding and the like. The invention uses the sulfur fixation ash as major raw materials, no or little cement is added into the materials, and alkali is added into the materials for excitation. Products are in sealed porous structures, and have the characteristics of light weight, high intensity, small heat conductive coefficient, good thermal preservation and heat insulation performance, and the like. When being adopted, the invention is favorable for realizing the reutilization of resources, can reduce the environment pollution caused by sulfur fixation ash piling, and can protect the environment.

The invention belongs to the technical fields of environmental protection and comprehensive utilization of resources, and particularly relates to a device for calcining a high-whiteness powder material by microwave heating. The device disclosed by the invention is divided into the parts, namely a charging cavity, reaction cavities, a collector and the like. The device comprises the following processes: mixing kieselguhr or kaolin original soil with a reactant, and feeding to the charging cavity; feeding the materials to a microwave reaction cavity in an extrusion manner, and deeply heating by virtue of a microwave; heating to over 100 DEG C for 5-30 minutes in a first reaction cavity, and preheating and drying the original soil; heating to required calcination temperature in a second reaction cavity and calcining for 5-30 minutes, so as to obtain powder material with high whiteness being over 92; and cooling and storing the generated powder material by virtue of the collector. Due to a microwave heating mode, the device disclosed by the invention is energy-saving and environment-friendly, and is capable of ensuring continuous batch production and effectively avoiding potential safety hazards such as fire hazards. The high-whiteness powder material produced by the method has good covering power and the stability, is capable of replacing or partially replacing expensive titanium dioxide material, and has a wide application prospect.

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.