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586results about How to "Achieve recycling" patented technology

Method for energy-saving charging and discharging of cells and system for testing energy-saving charging and discharging of cells

The invention relates to the technical field of an energy-saving charging and discharging test on cells, and specially, relates to a method for energy-saving charging and discharging of cells and a system for testing energy-saving charging and discharging of cells. When all cells are in a charging state, power is sent from an electrical network and orderly passes through a direct current-alternating current transformation unit, a direct current-direct current transformation unit and the cells. When all the cells are in a discharging state, power is sent from the cells and orderly passes through the direct current-direct current transformation unit, the direct current-alternating current transformation unit and the electrical network. When cell charging powder and cell discharging powder are unequal, the powder unbalance is adjusted by the direct current-alternating current transformation unit and the electrical network. In the invention, charging and discharging of cells are realized simultaneously. Powder produced by cell discharging is fed back to an electrical network so that powder cyclic utilization is realized and powder-saving effects are obtained. A part of the cells are in a charging state and the other part of the cells are in a discharging state so that powder can be transmitted between the two parts without passing through the electrical network and thus powder cyclic utilization efficiency is improved; powder consumption is reduced; charging-discharging integration is realized; and operation processes are simple and efficient.
Owner:DONGGUAN GUANJIA ELECTRONICS EQUIP

Method for recycling high-purity fluorine and phosphorus from wastewater of phosphogypsum residue field

InactiveCN102887535AAchieve recyclingHigh recovery rateCalcium/strontium/barium fluoridesMultistage water/sewage treatmentIonFluoride calcium
The invention relates to a method for recycling high-purity fluorine and phosphorus from a wastewater of phosphogypsum residue field. According to the different reaction conditions of calcium fluoride and magnesium ammonium phosphate, the implementation of the method is divided into two stages: in the first stage of recycling high-purity calcium fluoride: adjusting the pH (Potential Of Hydrogen) value of the wastewater of the phosphogypsum residue field by a sodium hydroxide solution to 3-6 to enable the fluoride ions and calcium ions in the wastewater to be reacted to generate calcium fluoride precipitate, filtering and recycling calcium fluoride; and the second stage of recycling high-purity magnesium ammonium phosphate: adjusting the pH value of the wastewater after the first section of recycling high-purity calcium fluoride by the sodium hydroxide solution to 7.5-9.5, adding a magnesium source and an ammonia source at the same time, generating magnesium ammonium phosphate, magnesium ammonium phosphate analogs or phosphate compounds in a crystalline state in a magnesium ammonium phosphate crystallization reactor, filtering and recycling magnesium ammonium phosphate. The water treated by the method disclosed by the invention has low impurity content and can be directly used as the industrial water and circulating cooling water in a phosphorus chemical production system.
Owner:HUBEI FORBON TECH

Passive safety shell cooling system

The invention aims at providing a passive safety shell cooling system comprising a water tank, an inner evaporator pipe bundle, a steam-water separator and an outer air cooler, wherein the water tank is positioned in an annular cavity formed by an inner-layer concrete safety shell and an outer-layer concrete safety shell; the outer air cooler is positioned between the dome of the inner-layer concrete safety shell and the dome of the outer-layer concrete safety shell; both an inner evaporator and the steam-water separator are positioned inside the inner-layer concrete safety shell; two ends of the inner evaporator are respectively connected with the steam-water separator through two pipes; the steam-water separator is connected with the outer air cooler through a first pipe extending out of the inner-layer concrete safety shell; and the inner evaporator pipe bundle is communicated with the water tank through a second pipe extending out of the inner-layer concrete safety shell. When accidents such as LOCA (Loss Of Coolant Accident) and MSLB (Main Steam Line Break) occur, the passive safety shell cooling system can be used for safely and reliably conducting heat out of the safety shell for a long term, ensuring the temperature inside the safety shell, and guaranteeing that pressure is no more than a limiting design value, thereby maintaining the integrity of the safety shell.
Owner:HARBIN ENG UNIV

Accumulator repairing system and method with function of recovering electric energy

The invention belongs to the accumulator charging repairing technology field, specially an accumulator charging repairing system with electrical energy recycling and method thereof. The repairing system is composed of a battery repairing table, a battery rapid test table, a battery multifunction test table, a low voltage bus, a compensating charger, an emergency discharging load, a power supply system monitor, an energy storage battery group, a PC, a multi-access communication module and a barcode scanner, characterized in that: the battery repairing table, the battery rapid test table, the battery multifunction test table and energy storage battery group are connected to the low voltage bus. The energy storage battery group recycles and stores the electricity energy when the battery discharges through the low voltage bus. The electricity energy is provided by the energy storage battery group when needed to repair the battery. The electricity energy stored when discharging is recycled; the compensating charger automatically starts to charge the low voltage bus battery group when the volume of the power supply bus is not enough. The invention is scientific, rational, high efficient, active and has great economic benefit.
Owner:ZHEJIANG LUYUAN ELECTRIC VEHICLE

Device for measuring permeability coefficient of concrete

InactiveCN105738269AAccurate measurement of permeability coefficientAchieve recyclingPermeability/surface area analysisPipingEngineering
The invention discloses a device for measuring a permeability coefficient of concrete. The device comprises a water tank, a positioning water drum, a water outlet, a measuring drum, a telescopic water permeating support, a transparent cylinder with scales, a water overflowing opening, an upper water collection opening, a water pump and a water pipe, wherein the positioning water drum is positioned on the water tank; the water outlet is formed in the side face of the positioning water drum; the measuring drum is correspondingly arranged below the water outlet; the telescopic water permeating support is positioned in the positioning water drum and is used for holding a concrete test block; the transparent cylinder with scales sleeves the concrete test block; the water overflowing opening is formed in the side face of the transparent cylinder with scales; the upper water collection opening is formed in the part, corresponding to the water overflowing opening, on the water tank; the water tank is connected with the water pump; the water pump is connected with the water pipe to supply water to the transparent cylinder with scales. The device can measure both the permeability coefficient of a concrete varying head and the permeability coefficient of a concrete fixed head; meanwhile, the device is easy to assemble and disassemble and convenient to actually operate, and has energy-saving and environment-friendly effects since water can be recycled.
Owner:核工业湖州勘测规划设计研究院股份有限公司

Method for recovering rare earth in neodymium-iron-boron waste by high-temperature and high-pressure leaching

ActiveCN109554549AHigh recycling valueAchieve recyclingProcess efficiency improvementScrapOxide
The invention relates to a method for recovering rare earth in neodymium-iron-boron waste by high-temperature and high-pressure leaching. The neodymium-iron-boron waste is subjected to oxidation roasting, hydrochloric acid high-temperature and high-pressure leaching, and oxidation and impurity removal purification on Fe2+ in a leachate so as to obtain a rare-earth chloride leachate; and the rare-earth chloride leachate can be used as a subsequent process and a product raw material, rare earth is obtained through extraction and separation, rare earth carbonate is prepared through precipitation,or rare earth oxide is prepared through precipitation-roasting. According to the method, a closed high-pressure reaction kettle is adopted as leaching equipment, so that the dynamic condition of theleaching process is excellent, the requirement for the particle size of the leached raw materials is low, a large amount of dust generated by the fine grinding process of the raw materials is avoided,the leaching rate of rare earth in the leaching process is high, the utilization rate of hydrochloric acid is high, no acid gas is discharged, energy is saved, and the environment is protected; and in addition, the method has the advantages of being short in process flow, simple in process conditions and low in recovery cost, and the method has considerable economic, social and environmental protection benefits for large-scale recovery of the neodymium-iron-boron waste.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Method for recovering uranium-containing wastewater and uranium in underground water through high-efficiency electrochemical reduction enrichment

ActiveCN108911102AAchieve removalAchieve recyclingRadioactive contaminantsContaminated groundwater/leachate treatmentHigh concentrationElectrochemistry
The invention discloses a method for recovering uranium-containing wastewater and uranium in underground water through high-efficiency electrochemical reduction enrichment. Metal electrodes are used as a cathode and an anode to construct an electrochemical system, and hexavalent uranyl ions are used to reduce electrons into tetravalent insoluble uranium dioxide, so the electrodes reduce hexavalenturanium into uranium dioxide and make the uranium dioxide enriched on the surfaces of the electrodes without an exogenous additive. A tetravalent uranium coating layer can further catalytically reduce hexavalent uranium in wastewater to form a new tetravalent uranium coating layer. The uranium dioxide enriched electrodes are taken out from the solution after the electrochemical reduction enrichment in order to realize high-efficiency reducing removal of the uranium in the wastewater and underground water. The electrodes are placed in a dilute nitric acid solution, and are oxidized to furtherrealize high-efficiency recovery. The method has the advantages of wide application range, and realization of high-efficiency removal and recovery of uranyl carbonate in low-concentration and high-concentration uranium-containing wastewater and carbonate-containing underground water.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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