14results about How to "Save natural resources" patented technology

The invention belongs to the technical field of carbon sequestration, and particularly relates to a fluidization reaction device and method for efficiently mineralizing carbon dioxide by solid waste, and the method comprises the following steps: pretreating the solid waste to obtain solid waste powder; the method comprises the following steps: atomizing an alkaline solvent into water mist, inputting CO2 gas and the water mist into a fluidized bed reactor by utilizing a fan, and adding solid waste powder into the fluidized bed reactor; the mass ratio of the water mist and the solid waste powder entering the fluidized bed reactor and the gas flow speed of the CO2 gas and the water mist are adjusted, gas-liquid-solid three-phase fluidization is conducted on the solid waste powder in the fluidized bed reactor under driving of the gas phase of the CO2 gas, and mineralization reaction is conducted; after full reaction, discharging solid waste powder by using a rotary discharging device, and drying the solid waste powder to constant weight by using a constant-temperature drying box to obtain an auxiliary cementing material; according to the method, the contact efficiency and the mass transfer rate of the solid waste and CO2 can be improved, the solid waste can quickly react with CO2 gas in the fluidized bed reactor, the reaction time is remarkably shortened, and the low cost and the high efficiency of the CO2 mineralization reaction of the solid waste powder are realized.

The invention discloses a design method for a steel bar component. According to the method, a large amount of historical design data can be quickly processed and analyzed through the machine learning model, and key factors influencing axial force reinforcement calculation are automatically identified, so that the calculation efficiency is improved. The machine learning model automatically completes calculation through an algorithm, and errors in the calculation process are reduced. The fully trained machine learning model can accurately predict the reinforcing steel bar area based on the input parameters, and the design accuracy is improved. A machine learning model can discover a hidden relationship between data by analyzing historical data, which is particularly important for reinforcement calculation caused by axial force because the axial force is related to various factors, such as structure size, material characteristics and the like. Machine learning is applied to the reinforcement calculation process caused by the axial force, the intelligent level of design can be remarkably improved, the design efficiency and quality are improved, and meanwhile powerful technical support is provided for cost optimization.

This invention belongs to the field of solid waste resource utilization technology, and relates to a method for firing sulfuric acid slag-based vitrified aggregate with adjustable expansion ratio. The method involves drying sulfuric acid slag, phosphorus mud, and contaminated soil, followed by ball milling to obtain powder; mixing the powder with an expansion agent to obtain a mixture; granulating the mixture with water to form aggregate blanks; heating the aggregate blanks to 100-120℃ for drying; preheating the dried aggregate blanks to 300-600℃, then further heating to 1080-1200℃ for firing; and finally, rapidly cooling the sintered aggregate blanks at room temperature to obtain the final product. This firing method not only allows for adjustment of the expansion ratio and density of sulfuric acid slag-based vitrified aggregates during the preparation process, but also enables high-value resource utilization of various difficult-to-treat solid wastes.

The application provides a method and system for preparing low-carbon cement by using coal gasification ash in a graded manner, and the method comprises the following steps: dividing the coal gasification ash into carbon-rich ash, medium-carbon ash and carbon-poor ash according to the carbon content; feeding the carbon-rich ash and raw coal into a coal powder preparation workshop to prepare a first mixture as a clinker calcination fuel; feeding the medium-carbon ash into a raw material preparation workshop after metering to be ground and dried together with other raw material components; preparing clinker by decomposing and calcining the second mixture after mixing uniformly and cooling; feeding the mixture of the clinker and other cement components and the carbon-poor ash into a cement preparation workshop to prepare finished cement. The carbon content of the coal gasification ash is divided in a graded manner to obtain coal gasification ash materials with different characteristics, and the cement production process characteristics are combined to be used in three process sections of raw material grinding, clinker calcination and cement grinding, so that the coal gasification ash is used in a large amount and in a large scale in the building material resources, and the carbon emission in the cement clinker production process is reduced.

The invention belongs to the technical field of recycled waste paper processing, and particularly relates to a deinking and bleaching treatment process for recycled waste paper. The deinking and bleaching treatment process for the recycled waste paper comprises the following steps: S1, cleaning, removing impurities, soaking and pulping; s2, performing steam explosion; s3, performing enzymolysis treatment; and S4, bleaching, washing and pulping. According to the deinking and bleaching treatment process for the recycled waste paper, the chemical, physical and biological combined deinking technology is integrated, the quality and efficiency of recycled paper production are comprehensively optimized, ink particles attached to the waste paper can be more effectively removed, the whiteness of the recycled paper is remarkably improved, the integrity of fibers is protected, fiber breakage and damage are reduced, and the service life of the recycled paper is prolonged. Therefore, the physical properties of the recycled paper, such as burst index, tensile index and tear index, are improved.

The invention provides an environment-friendly sludge baking-free building block and a preparation method thereof, and belongs to the technical field of solid waste resource utilization, the environment-friendly sludge baking-free building block comprises, by weight, 30-60 parts of sludge, 30-50 parts of a cementing agent, 5-20 parts of an alkali activator, 2-10 parts of a reinforcing agent and 10-20 parts of water, the cementing agent comprises blast furnace slag and fly ash, the mass ratio of the blast furnace slag to the fly ash is (0.5-5): 1, and the mass ratio of the alkali activator to the reinforcing agent is (0.5-5): 1. The reinforcing agent comprises a phosphorus-based reinforcing agent and an aluminum-based reinforcing agent, and the mass ratio of the phosphorus-based reinforcing agent to the aluminum-based reinforcing agent is (0.8-1.2): 1. The silica-alumina ratio and the microstructure of the gel phase are regulated and controlled through the blast furnace slag, the fly ash and the reinforcing agent, heavy metal is cured through three curing mechanisms of physical packaging, chemical bonding and surface adsorption on the basis of an alkali excitation system, and consolidation of pollutants in the sludge is intensified in an all-around mode.

The invention belongs to the technical field of recycled asphalt, and discloses green carbon-reducing modified asphalt as well as a preparation method and application thereof in high-dosage RAP. The green carbon-reducing modified asphalt is prepared from the following raw materials in parts by mass: 3-6 parts of an SBS modifier, 70-90 parts of asphalt, 4-8 parts of a warm mixing agent, 5-10 parts of a viscosity reducer, 7-20 parts of a regenerant and 3-5 parts of a stabilizer. According to the present invention, the major breakthrough of the traditional asphalt material is achieved on the technical level, and the significant beneficial effects are provided in the aspects of environmental protection, resource saving, economic feasibility, industry development and the like, such that the method is the important technical innovation for achieving the sustainable development target in the road construction field.

The application belongs to the technical field of nanocomposites, and particularly relates to a core-shell type thermite, a preparation method and application in a biomass blasting device. The preparation method comprises the following steps: S1, adding fly ash into a hydrochloric acid solution to dissolve the fly ash, then filtering to obtain a filtrate, adding a sodium hydroxide solution into the filtrate, then performing stirring, filtering and drying treatment to obtain a precipitate, calcining the precipitate to obtain iron oxide particles for standby; S2, adding aluminum powder and boron powder into an organic solvent to perform ultrasonic mixing, then performing heating and stirring to volatilize the organic solvent to obtain an aluminum-boron compound, and drying for standby; S3, adding the iron oxide particles, the aluminum-boron compound and an adhesive into an acetone solution to mix uniformly to obtain a mixture, performing stirring and ultrasonic treatment on the mixture to obtain a suspension; adding a polyvinyl alcohol emulsifier into deionized water and performing heating and stirring to obtain an emulsion; S4, in a high-speed dispersion homogenizer, adding the suspension dropwise into the emulsion to wrap the suspension in the emulsion to obtain an oil-in-water emulsion, and performing evaporation, filtering, washing and drying treatment on the oil-in-water emulsion to obtain the core-shell type nano thermite.

The invention discloses a soil solidifying agent and a preparation method thereof, and belongs to the technical field of soil solidifying agents in highway engineering. The soil solidifying agent is mainly composed of the following components: 5% to 10% of steel slag powder, 10% to 20% of slag powder, 50% to 70% of quicklime blocks, 5% to 10% of waste gypsum, 2% to 5% of activator, and 5% to 10% of desulfurized ash. The initial setting time of the soil solidifying agent is about 12 hours, and the effective working time exceeds 24 hours. It is particularly suitable for the situation of uneven soil moisture, and is convenient for local re-pressing of the compacted surface on site, thereby improving the overall quality of construction; its unconfined compressive strength and CBR value are higher than those of soil solidified by cement, and it can replace traditional cement, lime, etc. for roadbed treatment in engineering, thereby improving the quality of engineering.

The application relates to the technical field of medical devices, in particular to an exosmosis detection device based on a skin deformation sensor, which comprises an induction assembly and a terminal assembly; the induction assembly and the terminal assembly work cooperatively through wireless communication; the induction assembly comprises an exosmosis detection patch and a signal assembly; a stress induction layer is arranged in the exosmosis detection patch; a stress induction link is arranged in the stress induction layer; the stress induction link converts the change of skin tension into the change of electromagnetic signal feedback output. The exosmosis detection device provided by the application is convenient for remote operation of medical staff, and is suitable for exosmosis detection in various injection scenes.

This invention belongs to, but is not limited to, the field of intelligent accounting archive technology, and discloses an intelligent archiving method for accounting archives and a data verification and rollback control method. The method includes: dynamic QR code technology + barcode scanner / PDA + NLP image type recognition + RFID archive borrowing to achieve intelligent archiving; when a document is saved, a QR code is generated based on the relevant information of the document, and the corresponding metadata information is updated at different business nodes; sub-codes and master codes are used to verify data uniqueness; a communication protocol with the barcode scanner / PDA ensures data security; NLP identifies image types, and different types of attachments are verified in different ways; RFID facilitates quick retrieval when borrowing archives. This invention not only effectively improves the management efficiency of enterprises, but also brings positive impacts on energy conservation, environmental protection, and sustainable development. Through optimization of each link, by reducing paper and energy consumption, improving resource utilization efficiency, and enhancing the enterprise's risk resistance, a win-win situation of economic and environmental benefits is ultimately achieved.

A compact and lightweight half-face mask with an air supply valve includes a half-face mask, a spring-loaded exhalation valve, and a small air supply valve. The small air supply valve is installed in the middle interface of the half-face mask through the main housing of the air supply valve. An air supply valve stem is located inside the main housing. An opening at the bottom of the main housing allows the bottom end of the air supply valve stem to extend out. A rear cover is located on the upper part of the main housing. The small air supply valve includes a positive pressure on-demand air supply component, a switch component, a connecting connector, and a medium-pressure pipe. The top of the connecting connector is threaded to the bottom end of the air supply valve stem at the opening, and the bottom of the connecting connector is connected to the medium-pressure pipe. The switch component includes a switch spring located inside the main housing of the air supply valve. A switch sliding plane sealing frame is located on top of the switch spring. A switch diaphragm is located on top of the switch sliding plane sealing frame. A switch sealing seat is located on top of the switch diaphragm. A diaphragm base plate is located on top of the switch sealing seat. This device features high safety protection, economy, and portability, and eliminates the need for frequently replaced filter consumables.

The invention relates to the technical field of building materials and environmental protection, in particular to an energy-saving and environment-friendly brick sculpture manufacturing method which comprises the specific steps that S100, crop waste including but not limited to rice husks and straw is selected as raw materials, and cleaning and drying treatment is conducted to remove impurities and excessive water; s200, a biodegradation technology is adopted, specific microorganisms are used for conducting degradation treatment on the raw materials, the molecular weight and crystallinity of the raw materials are reduced, and the combining capacity of the raw materials and traditional brick carving raw materials is improved; by selecting crop waste as the raw material, resource utilization of the waste is achieved, the problem of environmental pollution caused by the agricultural waste is remarkably reduced, meanwhile, raw material resources needed by traditional brick carving manufacturing are saved, the raw materials are treated through the biodegradation technology, the molecular weight and crystallinity of the raw materials are reduced, and the utilization rate of the raw materials is increased. The bonding capacity with the traditional brick carving raw material is improved, and the biodegradability of the product is also improved, so that the final product can be decomposed by the natural environment more easily after being discarded.

This invention relates to the field of metallurgical technology, specifically to a method for effectively recovering metallic silicon from industrial silicon slag. The method involves first crushing the silicon slag, adding plasma water for slurry preparation, obtaining a silicon slag slurry, then adding a modifier, inhibitor, trapping agent, and frother to generate bubbles. The slurry is then refined using electromagnetic slag-forming in a medium-frequency induction furnace, and finally poured into a mold for cooling to obtain metallic silicon. The modifier is quicklime powder, the inhibitor and trapping agent are a mixture of various components, the frother is No. 4 flotation oil, the slag-forming agent is a mixture of base materials and auxiliary materials, and the gas is a mixture of argon, chlorine, and other gases. This method can solve the problems of high impurity and complex chemical composition in industrial silicon slag, improving the purity of the recovered metallic silicon.