13results about How to "Improve resource utilization value" patented technology

The application discloses a cotton stalk pulling-residual film pulling-dirt removing and strip collecting combined operation device, which comprises a traction frame (1), a machine frame (2), a gearbox (3), a boat-shaped sinking plate (4), a planing device (5), a pulling roller (6), a dirt removing and strip collecting device (7) and a walking wheel (8). The planing device (5) is arranged at the lower front of the machine frame (2), the pulling roller (6) is arranged at the upper front of the planing device (5), the gearbox (3) is arranged at the upper front of the machine frame (2), the boat-shaped sinking plate (4) is arranged at the lower front of the machine frame (2), the dirt removing and strip collecting device (7) is arranged at the rear of the machine frame (2), and the walking wheel (8) is arranged at the lower rear of the machine frame (2).

The application relates to the technical field of carbon dioxide mineralization, and particularly discloses a carbon dioxide capture and mineralization integrated test device and method. The device comprises a gas source module, a gas mixing module, a carbon dioxide absorption module and a carbon dioxide mineralization reaction module. The mineralization reaction kettle has a pressure-bearing kettle body and a hollow layer. The mineralization reaction kinetics process is characterized by monitoring the physical and chemical indexes of the reaction system, so that efficient mineralization of carbon dioxide is realized. A gas flow stirring device is arranged in the absorption module. The mixed gas is self-driven to rotate and is dispersed into micro-bubbles, so that the carbon dioxide absorption is strengthened. The device can be switched between the absorption-mineralization circulation loop and the direct mineralization connection state. The device is compatible with wet mineralization, dry mineralization and cementation material carbonization curing functions, and is suitable for carbon dioxide mineral storage and resource utilization research.

The invention discloses a chlorine-containing pyrolysis oil radial moving bed reaction adsorption dechlorination hydro-conversion method, and belongs to the technical field of chlorine-containing oil product hydrotreatment and refining. According to the method, chlorine-containing pyrolytic oil is sequentially subjected to fixed bed selective hydrogenation, radial moving bed reaction adsorption dechlorination and fixed bed deep hydrofining reactor treatment; the radial moving bed is filled with a core-shell structure reaction and adsorption integrated catalyst, the core is a hydrodechlorination active component, the shell mainly adopts zinc oxide to adsorb HCl and is fixed in situ, and meanwhile, online addition and discharge of the catalyst are realized through the radial moving bed. According to the invention, poisoning of chlorine to the catalyst is effectively inhibited, the corrosion risk of equipment is reduced, shutdown of the device is avoided, the dechlorination efficiency is improved, the continuous operation period is prolonged, efficient, stable and economical hydro-conversion of the chlorine-containing pyrolytic oil is realized, and the obtained product can be used as clean fuel oil or a chemical raw material.

The application discloses Pseudomonas songnenensis, a microbial inoculum and application thereof, and relates to the technical field of environmental microorganisms and solid waste resource technology. The Pseudomonas songnenensis strain JP01 is preserved in the China General Microbiological Culture Collection Center, and has a preservation number of CGMCC No. 37102. The strain has salt and alkali tolerance characteristics, and can degrade coal gangue and promote the release of effective phosphorus, available potassium and effective silicon nutrients. After inoculation for 4 days, under normal conditions, the effective phosphorus content of the strain JP01 treatment group is 758.65% higher than that of the CK group; under salt and alkali conditions, the effective phosphorus content of the strain JP01 treatment group is 4.70 times that of the bacillus megaterium treatment group. The strain has good long-term colonization ability in a coal gangue-salt and alkali soil mixed substrate, and the viable cell count can still be maintained at a high level of 2.72x10 7 CFU / g after 90 days of culture. The application is suitable for coal gangue resource utilization and salt and alkali soil improvement, and has good phosphorus element activation ability and functional stability in a salt and alkali environment.

The invention provides a carton waste environment-friendly treatment device, and relates to the field of waste treatment, the carton waste environment-friendly treatment device comprises a support frame, a conveying barrel, a charging barrel and a filter box, a conveying mechanism is arranged in the conveying barrel, a crushing mechanism is arranged in the charging barrel, and a screening mechanism is arranged in the filter box; the conveying mechanism comprises a brushless motor, an auger, a rotating column, a first bevel gear, a second bevel gear, a rotating shaft, a worm and a worm gear. A bevel gear and a worm and gear structure synchronously drive the feeding pipe to rotate, so that the conveying rate and the feeding rate form mechanical coupling; a servo motor drives a crushing roller and drives a cam and a fan of a screening mechanism through multi-stage chain transmission at the same time, it is ensured that the rhythm of crushing, screening and drying links is consistent, material overstock among all procedures is eliminated, through linkage of a telescopic column, a fan-shaped gear and a turnover plate, material stirring and dredging actions are automatically executed when materials are overloaded, and the working efficiency is improved. And the failure rate of equipment is reduced.

This invention belongs to the field of advanced ceramic composite materials and refractory material preparation technology, and relates to a method for preparing waste carbon fiber toughened magnesium-aluminum spinel composite ceramics for use in insulation covers of aluminum electrolytic cells. MgO and α-Al₂O₃ are pre-dried, then mixed by wet ball milling in an organic alcohol medium. The resulting mixture is dried and sieved. The mixture is then subjected to two-stage calcination to obtain MgAl₂O₄ spinel powder. Waste carbon fibers are cleaned with organic solvents to remove oil and sizing, and dried to obtain pretreated waste carbon fibers. The pretreated waste carbon fibers undergo a light surface activation treatment to obtain activated waste carbon fibers. The activated waste carbon fibers are dispersed in an organic alcohol medium, ultrasonically dispersed, and then the MgAl₂O₄ spinel powder is added. The mixture is then mixed under low shear using mechanical stirring or drum mixing, dried, sieved, and granulated with a binder to obtain composite granulated powder. The composite granulated powder is molded and pressed to obtain a green body. The green body is first degummed at low temperature in an air atmosphere; then heated further and sintered at high temperature under an Ar protective atmosphere, followed by cooling to obtain waste carbon fiber toughened magnesium-aluminum spinel composite ceramics. This invention optimizes the material composition and preparation process to ensure that the material maintains good structural stability and thermal insulation performance in high-temperature environments.

The application discloses Luzhou-flavor liquor dreg water-soluble glucose oligosaccharide and a preparation method and application thereof, and belongs to the technical field of medicines.The application extracts water-soluble glucose oligosaccharide from Luzhou-flavor liquor dreg as raw material.The main chain of the Luzhou-flavor liquor dreg water-soluble glucose oligosaccharide is composed of glucose, and the side chain comprises arabinose and glucose; the Luzhou-flavor liquor dreg water-soluble glucose oligosaccharide is composed of arabinose, galactose, glucose and xylose, and the molar ratio is 8.81:2.54:76.82:6.90.The water-soluble glucose oligosaccharide prepared by the application can obviously improve the symptoms of alcoholic liver, and has the effects of inhibiting liver damage and improving the activity of liver antioxidant enzymes.In addition, the Luzhou-flavor dreg in the application is a by-product of liquor fermentation, has high raw material yield and low cost, and the application can improve the resource utilization value of the dreg.

The application discloses a kind of mixed salt resource utilization preparation agricultural potassium sulfate and industrial grade sodium chloride, it is related to solid waste comprehensive utilization technical field, the method is removed by the step-by-step precipitation of magnesium, calcium of sodium carbonate by removing magnesium of organic matter oxidation degradation organic matter in mixed salt, impurity, then refined by ion flotation, subsequently obtain sodium chloride and potassium sulfate product by gradient crystallization in turn, finally remaining mother liquor backflow reuse, precipitate waste residue pyrolysis preparation biochar, form closed loop cycle;The application realizes the efficient degradation of organic pollutants in high-organic industrial mixed salt and the deep removal of impurities, effectively improves the refining purity of salt solution and the raw material adaptation range;At the same time, gradient crystallization is used to separate salt and closed loop cycle in whole process, directional separation is used to prepare industrial grade sodium chloride and agricultural potassium sulfate, and the mother liquor and waste residue are all converted into available resources, forming a mixed salt resource utilization system with high value utilization and harmless disposal synergy.

The invention relates to a process and a system for converting municipal solid wastes into sustainable aviation kerosene components. The system comprises a cracking device, a condensing device, a solid waste treatment device, a gas purification device, an extraction device, a hydrogenation reaction device and a rectification device. According to the system and the process provided by the invention, the municipal solid wastes are converted into high-added-value products, the environmental benefits and the economic benefits are improved, and meanwhile, the conversion efficiency of the municipal solid wastes into sustainable aviation kerosene components is also improved.

The invention discloses a method for preparing 1, 4-cyclohexanedicarboxylic acid (CHDA) from waste PET plastic and preparing 1, 4-cyclohexanedimethanol (CHDM) through hydrogenolysis, and belongs to the technical field of high-value conversion of waste plastic. According to the method, water is taken as a green reaction medium, and the waste PET plastic is subjected to two-step catalytic reaction to realize high-value conversion: step one, the waste PET is catalyzed by a specific catalyst in the water medium, a depolymerization hydrogenation reaction is completed at 180-210 DEG C to generate CHDA, the concentration of a PET substrate is controlled at 1.2%-15%, the hydrogen pressure is 1-3 MPa, and the reaction is performed for 3-13 h; and 2, carrying out hydrogenolysis reaction on the separated and purified CHDA at 200-230 DEG C under the action of a special catalyst to obtain CHDM, and reacting for 30-60 minutes under the hydrogen pressure of 2-5 MPa. Under the optimal reaction condition, the final molar yield of CHDM can reach 81%, and the separation purity reaches up to 99.5%; the highest molar yield of the intermediate product CHDA can reach 90%, and the intermediate product CHDA is a high-added-value polyester monomer and can be separated independently. According to the method, closed-loop high-valued circulation of the waste PET is achieved, white pollution is relieved, fossil resources are replaced to prepare high-end chemical raw materials, the catalyst can be regenerated and reused, environmental benefits, economic benefits and industrial application value are achieved, technological operation is flexible, and product diversity is high.

The present application belongs to the technical field of wet-process phosphoric acid and resource comprehensive utilization, and discloses a method for preparing phosphoric acid and calcium chloride by decomposing medium and low grade phosphate rock with by-product hydrochloric acid. (1) The phosphate rock is mixed with a hydrochloric acid solution, sodium chloride is added, and after reaction, solid-liquid separation is performed to obtain an acidolysis solution; (2) the acidolysis solution is separated and treated to obtain a phosphoric acid solution and a calcium chloride solution; (3) the calcium chloride solution is neutralized and purified by using a stepwise pH value control method; (4) the purified calcium chloride solution is concentrated, sodium chloride is precipitated and separated due to solubility difference, and is returned to step (1) for recycling, and the concentration, crystallization and drying are continuously performed to obtain a calcium chloride product. The present application effectively solves the problems of difficult solid-liquid separation and low value of by-product calcium chloride caused by the generation of silica gel in the acidolysis process of medium and low grade phosphate rock, the decomposition rate of the phosphate rock is more than 98%, high quality phosphoric acid is obtained, the full utilization of by-products is realized, and the production cost and energy consumption are significantly reduced.

This invention discloses a method for preparing arsenic-cadmium lattice mineralized and immobilized silicate mineral materials based on mechanochemical ball milling and its application. The invention aims to solve the technical problems of poor arsenic and cadmium immobilization and ineffective immobilization in existing silicate mineral materials. Preparation method: 1. Mix iron oxide yellow and serpentine evenly to obtain an iron-serpentine composite silicate mineral material; 2. Place the iron-serpentine composite silicate mineral material in a ball mill jar and ball mill it at a controlled speed to obtain an arsenic-cadmium lattice mineralized and immobilized silicate mineral material. Application: This invention involves adding the arsenic-cadmium lattice mineralized and immobilized silicate mineral material to polluted water or soil. This invention uses a mechanochemical method to form a surface bond between iron manganese oxides and serpentine, constructing a composite interface with multiple synergistic effects, improving the adsorption performance of cadmium and arsenic, and significantly promoting the diffusion and immobilization process of heavy metal ions into the serpentine lattice.

This invention belongs to the field of industrial waste resource utilization technology, and discloses a zero-discharge resource utilization method for polysilicon waste liquid. The method involves adding sodium hydroxide solution to chlorosilane waste liquid and reacting it, then obtaining sodium silicate solution through stepwise extraction with dilute alkali or one-step extraction with concentrated alkali. Furthermore, calcium carbide slag is calcined and slaked to obtain lime slurry. Then, the sodium silicate solution and lime solution are added to a reaction vessel according to a specific ratio and heated for reaction. The resulting mixture is filtered to obtain microporous calcium silicate material. The filtrate can be recycled as an alkaline solution for chlorosilane waste liquid. This invention effectively solves the problems of scarce resource utilization pathways and low utilization efficiency of chlorosilane waste liquid by synergistically utilizing chlorosilane waste liquid and calcium carbide slag solid waste. The resulting microporous calcium silicate material has excellent physicochemical properties. Simultaneously, the process is simple and the conditions are mild, achieving comprehensive utilization of industrial waste liquid and residue while also contributing to energy conservation, emission reduction, and source environmental protection.