470results about How to "Efficient recycling" patented technology

The invention discloses a flue gas waste heat recovery device and method for a garbage incinerator. Relates to the technical field of waste incineration treatment and comprises a waste heat recovery box, a heat exchange pipe set driven by a main control gear, a transfer gear and a fixed gear ring is arranged in the waste heat recovery box, and heat exchange pipes conduct revolution and autorotation in smoke at the same time to enhance heat exchange. Accumulated dust on the outer surface of the heat exchange tube is removed through the rotating treatment scraper and the removing brush cylinder, and the reciprocating treatment kettle is used for knocking the tube wall of the heat exchange tube to shake off the dust; the flow speed and the flow direction of flue gas can be intelligently adjusted through an angle-adjustable speed adjusting plate on a treatment scraper, so that the device is suitable for different working conditions; the device realizes efficient and stable recovery of flue gas waste heat, can keep a heat exchange surface clean on line, and is high in adaptability.

This application discloses a robotic vacuum cleaner and its cleaning control method, relating to the field of smart home technology. The robotic vacuum cleaner is equipped with a retractable scraper assembly with spray nozzles. The cleaning control method includes: acquiring stain information of the area to be cleaned and determining a cleaning strategy; controlling the scraper assembly to move from a retracted position to an extended position, making the scraper assembly in contact with the ground; spraying cleaning liquid onto the ground through the spray nozzles according to the cleaning strategy, so that the cleaning liquid acts on the stained area; and driving the robotic vacuum cleaner to perform a scraping action on the stained area. This invention, by constructing a retractable scraper structure integrating spraying function, enables the robotic vacuum cleaner to have an integrated stain cleaning capability of "spraying, dissolving, and scraping," achieving effective stain removal and efficient recycling of cleaning liquid, balancing cleaning effect and environmental protection.

The biomass particle hot blast stove comprises a stove body, a feeding assembly, a combustion assembly, a heat exchange assembly and a smoke exhaust assembly. The combustion assembly is arranged in the furnace body, a combustion chamber of the combustion assembly is sequentially divided into a drying pyrolysis area, a main combustion area and a burnout area in the conveying direction of biomass particles, and ordered partitioned combustion of preheating, sufficient combustion and complete burnout of fuel is achieved; the heat exchange assembly comprises a first heat exchange set arranged above the combustion assembly and a second heat exchange set arranged in the circumferential direction of the combustion assembly, and a three-dimensional and multi-layer waste heat recovery structure is formed. The combustion efficiency and the burn-off rate of the biomass particles are obviously improved; through the first heat exchange set and the second heat exchange set, efficient and sufficient recovery of combustion waste heat is achieved, and the overall heat efficiency and the energy utilization rate of the hot blast stove are greatly improved.

The invention relates to the technical field of battery disassembling and recycling, in particular to a power battery disassembling and recycling device which comprises a case, a feeding hopper and a discharging box, and the feeding hopper is communicated with a discharging opening of external crushing equipment. According to the power battery disassembling and recycling device, through the synergistic effect of the centrifugal assembly and the vibration assembly, namely, centrifugal force generated by a rotatable centrifugal tube under the driving of the power mechanism is utilized to separate electrolyte, and meanwhile, the driving mechanism drives the upper sliding plate and the lower sliding plate to synchronously vibrate up and down through the moving rod; the blocked residual electrolyte in the battery fragments is effectively exposed and thrown out, so that the recovery efficiency and thoroughness are greatly improved; the connecting assembly adopts a connecting ring and a gold wire hose to ensure the sealing performance of material conveying, and the air blowing auxiliary drying of an air outlet ring and the collection design of an elastic sealing gasket and a negative pressure pipeline are combined, so that the risks of electrolyte leakage and environmental pollution are remarkably reduced, and safe, efficient and comprehensive recovery of the electrolyte in the power battery disassembling process is realized.

The utility model discloses a waste solar panel pyrolysis recovery system, which relates to the technical field of battery panel recovery, and comprises a pyrolysis furnace, a water-cooling spiral, a gravity separator, a slag bin, a pretreatment device, a condenser, a secondary combustion chamber, a heat exchanger, a tail gas purifier, an induced draft fan, a chimney and a liquid storage tank, the pretreatment device is connected to the input end of the pyrolyzing furnace, the input end of the condenser is connected with the output end of the pyrolyzing furnace, the non-condensable gas output end of the condenser is connected with the input end of the secondary combustion chamber, the condenser, the secondary combustion chamber, the heat exchanger, the tail gas purifier, the induced draft fan and the chimney are sequentially connected, and the condensate output end of the condenser is connected with the liquid storage tank. According to the waste solar panel pyrolysis recovery system provided by the utility model, the waste solar panel can be effectively recovered and treated, the resource recovery utilization rate can be improved, the adverse effect on the environment can be reduced, and a powerful guarantee is provided for green and efficient recovery and utilization of the waste solar panel.

This utility model discloses a device for regenerating and separating iron sulfide sludge. A first inlet for conveying iron sulfide sludge and a second inlet for conveying the reagent are provided on a high-temperature reaction tank. A temperature control unit is installed inside the high-temperature reaction tank to regulate the temperature. A membrane mesh structure driven by a motor and rotating at a certain speed is installed inside a vacuum drum, dividing the vacuum drum into an inner cavity and an outer cavity. The high-temperature reaction tank is connected to the inner cavity via pipelines. A solid separation system is connected to the inner cavity of the vacuum drum; a liquid separation system is connected to the outer cavity of the vacuum drum and is located below the liquid level in the vacuum drum; and a gas separation system is connected to the top of the vacuum drum. This device efficiently treats iron sulfide sludge in acidic or oxidizing environments and is suitable for the reaction of iron sulfide with hydrochloric acid or sodium hypochlorite. By optimizing the reaction process and separation system, the treatment efficiency is improved and the equipment footprint is reduced.

The embodiment of the invention provides an oil pump assembly, an engine lubricating system, an engine assembly and a vehicle. The oil pump assembly comprises: a housing; and the plurality of first oil pumps are arranged in the shell side by side. According to the engine oil pump assembly provided by the embodiment of the invention, the engine oil of the engine assembly can be recycled through the multiple first oil pumps, and effective oil return of the engine oil in the engine assembly can be achieved.

The application belongs to the technical field of natural substance separation and extraction, and particularly relates to a kind of Haematococcus pluvialis multi-product cascade separation method based on eutectic solvent sequential extraction and enzyme membrane reactor coupling, comprising the following steps: (1) cell wall weakening pretreatment step; (2) water-soluble component extraction step; (3) pigment component extraction step; (4) astaxanthin extraction step; (5) enzyme conversion step. Through the synergistic effect of eutectic solvent sequential extraction and enzyme membrane reactor, efficient, green and continuous cascade separation of water-soluble components, pigments, astaxanthin and xylo-oligosaccharides in Haematococcus pluvialis is realized, and product purity and resource utilization are improved.

The application provides an asynchronous flotation enrichment method and application based on quartz and feldspar. The asynchronous flotation enrichment method comprises the following steps: S1, providing a to-be-processed ore material containing quartz and feldspar; S2, adding a tertiary amine cationic collector and then adding an anionic collector in the presence of a feldspar depressant, and then performing quartz flotation on the ore material to obtain a first feldspar and quartz rough concentrate; and S3, performing feldspar flotation on the quartz rough concentrate by using a feldspar combined collector in the presence of a feldspar activator and a quartz depressant to obtain a second feldspar and quartz concentrate. In the quartz flotation, the combination of the tertiary amine cationic collector and the anionic collector can realize the pre-enrichment of the quartz under neutral conditions; meanwhile, the pre-enrichment of the quartz reduces the feldspar content of the to-be-processed ore slurry in the feldspar flotation, and the use amount of the feldspar activator can be effectively reduced, so that the feldspar flotation under weakly acidic or neutral conditions is realized.

The invention relates to the technical field of central gas sources, solves the problems that an existing central gas source is poor in output gas quality, tedious in system connection, low in integration level and inconvenient to assemble, and discloses a central gas source for external load gas supply, which comprises a pneumatic block, a compressor assembly, an ECU controller assembly and a dryer assembly. The compressor assembly is installed on the side face of the pneumatic block. The pneumatic block is of an integrally-formed structure, a switching valve set, an air valve set, an air inlet one-way valve, an air filter, a power limiting valve and a sensor assembly are integrated in the pneumatic block, and a valve seat for air inlet and exhaust and an air pipe connector are arranged in front of the pneumatic block. The ECU controller assembly is located on the rear end face of the pneumatic block and is parallel to the motor. The dryer assembly is located on the lower end face of the pneumatic block. And an external load inflation valve is also arranged in the pneumatic block. According to the invention, the integration level of the system is improved, external pipelines are reduced, the system structure is simplified, the installation and maintenance are more convenient, and the fault occurrence rate is reduced.

The utility model discloses a nitric acid preparation device for simulating an early atmospheric photochemical reaction of the earth. The nitric acid preparation device comprises an ultraviolet photochemical reaction system, a reaction gas source feeding system, a water vapor generator and a nitric acid freezing collector, the ultraviolet photochemical reaction system comprises an ultraviolet light source and a reaction chamber, and the ultraviolet light source is used for providing ultraviolet light required by reaction into the reaction chamber; the reaction gas source supply system is communicated with the reaction chamber and is used for supplying gas required for generating nitric acid through ultraviolet light chemical reaction into the reaction chamber; the water vapor generator is used for providing water vapor for the reaction chamber; the water vapor generator is connected with the reaction chamber; the nitric acid freezing collector is connected with the reaction chamber and is used for collecting nitric acid generated by photochemical reaction in the reaction chamber. The utility model realizes the preparation of nitric acid by simulating the early atmospheric photochemical reaction of the earth.

The application discloses a PCB oxidation-preventing treatment device, and relates to the oxidation-preventing treatment field of pretreatment plates, which comprises a main frame body, a spraying box body is arranged on the upper surface of the main frame body, and a micro-etching mechanism is arranged on the upper surface of the main frame body. The micro-etching mechanism comprises a cleaning assembly and a soaking assembly. The cleaning assembly comprises a sliding table body, the sliding table body is arranged on the upper surface of the main frame body, one side surface of the sliding table body is further provided with a sliding groove, one side of the inside of the sliding groove is provided with a bottom protruding block, and the inside of the sliding groove is provided with a limiting sleeve block. The soaking assembly comprises a vertical sliding rail, the bottom surface of the vertical sliding rail is connected with one side surface of a liquid pool bottom plate, and the inside of the vertical sliding rail is provided with an internal hydraulic rod. In the scheme, the micro-etching mechanism can efficiently remove the oxidation layer and pollutants of the pretreatment plate, provide a clean surface, and can also realize operations such as vibration liquid removal, liquid filtration and purification, and concentrated liquid recycling, so that the treatment effect and resource utilization rate are improved.

The present application relates to copper nickel ore sorting technical field, specifically for low grade copper nickel ore combined sorting device and process, including heavy plate feeder, the output end of heavy plate feeder is connected with short distance closed belt conveyor, the present application can separate 87.7% of invalid gangue components in advance after the whole set of combined sorting process is put into operation, reduce the material volume of flotation section from the source, the reagent dosage and water and electricity energy consumption are reduced synchronously, effectively reduce the processing cost of low grade copper nickel ore, significantly improve the production profit level of the project, the waste rock produced by sorting is used as underground filling aggregate after fine crushing, which replaces the purchased gobi sandstone raw material, achieves closed loop utilization of solid waste resources, and meets the green mine development and construction guidelines.

The utility model discloses water surface spilled oil recovery equipment which comprises an oil containment boom and a top cover, the top of the top cover is fixedly connected with an oil suction pipe, the oil suction pipe is fixedly connected with an oil collection hopper, the outer surface of the oil suction pipe is provided with a plurality of vertical supporting rods, the vertical supporting rods are arranged in a hollow mode, and the oil collection hopper is fixedly connected with the oil collection hopper. Elastic assemblies are arranged in the multiple vertical supporting rods correspondingly, connecting rods are arranged below the multiple vertical supporting rods correspondingly, and floating balls are fixedly connected to the bottom ends of the multiple connecting rods correspondingly. By means of the structure, the light-weight oil delivery pump has the advantages of being light in weight and small in size, can be directly moved manually, can be lightly put on an oil spilling water surface to be applied, is particularly suitable for being matched with an oil containment boom under the condition that an oil spilling layer is thick, can recycle oil spilling on the water surface more efficiently, and is convenient to use. The oil suction device can directly suck oil, is higher in efficiency, is more convenient in the operation process, reduces the working difficulty, and is stronger in use.

The application provides a method and equipment for purifying battery-grade lithium carbonate by dilute acid leaching of magnetic-removing lithium carbonate, and relates to the technical field of lithium carbonate purification, and comprises the following steps: step S1, slurry treatment: mixing battery-grade magnetic-removing lithium carbonate with deionized water and uniformly stirring to obtain a slurry; step S2, mild leaching: adding dilute acid to the slurry and stirring to leach under mild conditions to remove magnetic metal impurities; and step S3, neutralization and recrystallization: quickly adding a neutralizing agent to the leached slurry, adjusting the pH of the slurry, stirring to react, and recrystallizing the trace dissolved lithium carbonate. The scheme finally realizes the mild leaching process without carbonization, avoids the massive dissolution of the main body of lithium carbonate, selectively removes only the magnetic impurities, combines the rapid neutralization and recrystallization, makes the lithium carbonate re-precipitate, the purity of the finished product can reach the high-purity battery-grade standard, the content of magnetic impurities is extremely low, the lithium loss is extremely small in the whole process, the total lithium carbonate yield is extremely high in combination with the mother liquor membrane method.

The application discloses a pre-desilication system and method, the pre-desilication system comprising: a mineral slurry grinding device; a pre-desilication device connected to the mineral slurry grinding device; a leaching device comprising a first leaching unit and a second leaching unit, the first leaching unit being connected to the pre-desilication device; an evaporation device connected to the second leaching unit; a conveying device connected to the second leaching unit and the mineral slurry grinding device; wherein the evaporation device is used to produce a preparation liquid; the second leaching unit is used to heat the preparation liquid from the evaporation device; the conveying device is used to convey the preparation liquid from the second leaching unit to the mineral slurry grinding device; and the pre-desilication device is used to receive the mineral slurry from the mineral slurry grinding device and perform a pre-desilication reaction. The pre-desilication system of the application integrates the heating process of the preparation liquid in the leaching device, and uses the heat to provide a heat source for the mineral slurry grinding before pre-desilication, thereby realizing efficient recycling of waste heat of the system and greatly reducing the external energy consumption of the traditional independent pre-desilication process.

The utility model relates to bean sprout cultivation technical field, specifically is a bean sprout production environment room, include: shell, fixed plate is fixedly connected with the both sides inner wall of shell close to end, two chutes, two the chute is respectively set up in one side end of shell, two sliding blocks, two the sliding block is respectively slidingly connected in the chute, through the combination of water pump, water flow groove, water pipe and shower nozzle, water flow can be evenly distributed to each planting drawer, and each shower nozzle output end has multiple tiny holes, can scatter water flow into tiny water flow, ensure that moisture evenly sprays on bean sprout, promotes its healthy growth, this design avoids the problem that partial area is too wet or too dry, improves the consistency and growth quality of bean sprout, and water circulation mechanism realizes effective recovery and reuse to redundant moisture through the combination of water pump, water flow groove, water pipe and shower nozzle, this not only reduces the waste of water resources, also reduces operating cost.

The present application relates to a kind of weak magnetic lepidolite pre-elution waste-flotation enrichment method, belong to mineral processing technical field.The present application carries out coarse grinding, slurry conditioning to low-grade weak magnetic lepidolite, is pre-elution waste by high gradient magnetic separation, obtains coarse-grained high-grade lithium-containing magnetic product, again by concentration, fine grinding treatment, adds composite regulator and composite collector to carry out the selective regulation of slurry environment and mineral surface characteristics, using two roughing, once scavenging, once concentration can obtain high-quality lithium concentrate.The present application removes most of the gangue in the ore by magnetic separation, and once enrichment of weak magnetic lepidolite greatly reduces the ore processing capacity of subsequent process;Adopting fine grinding realizes that lithium mica is fully dissociated, and the new composite reagent developed is used to carry out selective hydrophobic flotation to lithium-containing magnetic product, which can realize secondary enrichment of weak magnetic lepidolite, and provides a new method for clean separation and efficient recovery of low-grade complex and difficult-to-select lithium ore.

The utility model discloses a mould processing device of adjustable cutting speed, including work table and cutting mechanism, the work table upper end is passed through and is set up with the drainage groove and the sliding slot, the drainage groove is set with a plurality of groups of fixed rollers in equal intervals in. The utility model discloses through servo motor no.

The invention belongs to the technical field of copper ore beneficiation, and particularly relates to a method for improving the flotation separation efficiency of micro-fine particle malachite. The method for improving the flotation separation efficiency of the micro-fine particle malachite comprises the following steps that quartz ore powder, malachite ore powder and water are mixed according to the mass ratio of 5: 1: (15-40), and first ore pulp is obtained; and a collecting agent is added into the first ore pulp, the final concentration of the collecting agent is made to range from 50 mg / L to 240 mg / L, and second ore pulp is obtained. Inorganic acid is added into the second ore pulp, flotation is conducted, and copper concentrate is obtained. Wherein the collecting agent is obtained by mixing a mixture of fatty acid, fatty alcohol-polyoxyethylene ether and polyethylene glycol according to the mass ratio of (70-82): (2-10): (8-28). The inorganic acid is selected from any one of sulfuric acid, hydrochloric acid and nitric acid. The mass concentration of the inorganic acid is 5%-25%, and 0.1 mL-0. 7mL of the inorganic acid is added into each liter of ore pulp. According to the method, the separation efficiency of the micro-fine particle malachite and the quartz is remarkably improved, and the copper recovery rate of the copper concentrate reaches 85.14%-86.6%.

The utility model discloses a drying device for silk fabric production, relates to the technical field of drying devices, and aims to solve the problems that in the prior art, in the silk fabric drying process, moisture in silk fabric cannot be squeezed out, the silk fabric cannot be rapidly dried easily, and practicability is poor. A partition plate is fixedly installed in the device box, a dehumidification cavity and a drying cavity are formed in the device box along the two sides of the partition plate correspondingly, a fixed pressing roller is rotatably installed in the dehumidification cavity of the device box, a movable pressing roller is arranged on one side of the fixed pressing roller, and moisture absorption rollers are arranged below the fixed pressing roller and the movable pressing roller correspondingly. The moisture absorption roller is rotationally connected with the device box, a moisture absorption cloth layer is fixedly installed on the outer side of the moisture absorption roller, a dirt suction nozzle is arranged on one side of the moisture absorption roller, and a negative pressure pipe is fixedly installed on one side of the dirt suction nozzle.

The invention relates to the field of glass, in particular to ultrathin flexible cover plate glass as well as a preparation method and application thereof. The glass is composed of 10-30% of UTG cullet and 70-90% of a specific batch and contains SiO2, Al2O3, Na2O and the like, and the decolorizing agent is prepared by compounding NaNO3 and K2O according to the ratio of 1: 0.2-1: 1. The preparation method comprises the following steps: adding cullet at 1000 DEG C and 1200 DEG C in two stages, carrying out heat preservation and homogenization at 1200-1300 DEG C for 30-60 minutes, and carrying out melting clarification at 1500-1600 DEG C and temperature-controlled annealing. The thickness of the obtained glass is 30-70 microns, the surface pressure stress after chemical strengthening is larger than or equal to 680 MPa, and the bending radius is smaller than or equal to 1.8 mm. According to the method, by means of collaborative design of components and the process, high performance is guaranteed, waste recycling is achieved at the same time, and the method is suitable for folding mobile phones, flexible OLEDs and other devices.

This invention relates to the field of organic waste gas recovery and resource utilization technology, and particularly to a low-volume methane / VOCs co-recovery system, method, and application in oil and gas development processes. The system includes a waste gas generating device, a waste gas collecting device, a waste gas conveying device, and an adsorption storage device connected in sequence. The adsorption storage device is filled with layered adsorption materials, which include a layered adsorption layer of heavy components, a layer of intermediate components, a layer of light components, and a protective bed, stacked sequentially. This invention, based on the adsorption storage concept and utilizing the inherent potential energy of the oil and gas development process, achieves efficient recovery of methane / VOCs from intermittent emission sources, reducing greenhouse gas methane and VOCs emissions and improving oil and gas product yields.

The invention discloses an environment-friendly circuit board metal recovery process and device based on a quartz groove, and belongs to the technical field of circuit board recovery, and the environment-friendly circuit board metal recovery process and device based on the quartz groove comprise a frame body mechanism, an inner groove mechanism, a dissolving groove mechanism, a cleaning groove mechanism and a drying groove mechanism. Through the arrangement of the industrial control computer, the transverse moving mechanism, the lifting mechanism, the inner tank mechanism, the dissolving tank mechanism, the cleaning tank mechanism and the drying tank mechanism, an automatic circuit board precious metal dissolving and recycling process is provided, the manual operation intensity is effectively reduced, the recycling efficiency is improved, efficient recycling of precious metal in a circuit board is achieved, and the production cost is reduced. Through the arrangement of the frame body mechanism, the inner tank mechanism, the first recovery water tank and the second recovery water tank, environment-friendly corrosion-resistant materials are adopted, it is ensured that the equipment is durable, acid liquor and waste liquor can be recovered, cyclic utilization of the acid liquor is achieved, and environmental pollution caused by the waste liquor is reduced.

This utility model belongs to the field of gypsum slurry technology, and particularly relates to a three-stage sedimentation and filtration device for gypsum slurry. It includes a support plate, a support frame above the support plate, a primary filter box above the support frame, an inlet above the primary filter box, a secondary filter tank connected to one side of the primary filter box via a first discharge pipe, a support base below the secondary filter tank, a tertiary filter box connected to one side of the secondary filter tank via a second discharge pipe, and a discharge pipe on one side of the tertiary filter box. The primary filter box contains a vibrating plate assembly for preliminary filtration of the slurry, and a spiral feeding assembly below the vibrating plate assembly. This utility model fundamentally solves the shortcomings of traditional processes in handling complex slurries, achieving deep removal of pollutants and efficient resource recovery while ensuring continuous operation, thus possessing significant economic and environmental benefits.

The invention discloses a device and a process for recovering yellow phosphorus in phosphorus sludge based on multistage flash evaporation continuous evaporation. The device comprises a pretreatment system, a drying-pyrolysis-evaporation integrated system and a product recovery and treatment system, phosphorus slurry is pretreated in the pretreatment system in a steam crushing and mixing mode and then enters the drying-pyrolysis-evaporation integrated system for precise temperature control through gradient electromagnetic heating, and the product recovery and treatment system is used for recycling the phosphorus slurry. And finally, the yellow phosphorus enters a product recovery and treatment system, so that the yellow phosphorus and phosphorus-free residues are recovered. According to the device and the process, phosphorus slurry can be uniformly fed in the whole process, phosphorus is evaporated thoroughly, and the yellow phosphorus recovery rate reaches 95% or above; the equipment sealing performance is good, and the risk of ignition caused by spontaneous combustion of yellow phosphorus is effectively avoided; the phosphorus sludge processing capacity reaches 0.5-1.0 ton per hour, continuous and stable operation can be performed for more than 720 hours, and the recycled residues are uniform in granularity and can be used for production of phosphate fertilizers, cement and the like, so that resource recycling is realized.

The invention discloses an aluminum-plastic solid waste separation and recovery device and method and application thereof, and relates to aluminum-plastic solid waste treatment.The aluminum-plastic solid waste separation and recovery device is characterized in that the aluminum-plastic solid waste separation and recovery device comprises a plurality of immersion cleaning tanks arranged in an array along an annular track; the hanging tool is used for being detachably connected with a placing basket for storing the aluminum plastic solid waste; and the circulating conveying mechanism is connected with the suspension hanging tool and used for driving the suspension hanging tool to move back and forth in the annular track direction of the immersion cleaning tanks, and the suspension hanging tool is hinged to the circulating conveying mechanism and used for sequentially immersing the multiple immersion cleaning tanks back and forth when the suspension hanging tool moves back and forth in the annular track direction. The aluminum-plastic solid waste is sequentially immersed in the pre-washing liquid, the replacement liquid and the cleaning liquid in the immersion washing tank, the copper-containing etching liquid and the aluminum-plastic solid waste material are fully replaced, the plastic sheet with the clean surface can be obtained, the obtained metal copper powder and the aluminum-series purified water are replaced, efficient treatment of liquid waste and solid waste is achieved, the utilization rate is 100%, and the method is suitable for industrial production. And zero discharge of liquid and solid waste is realized.

Provided is a battery processing method capable of efficiently recovering lithium from a lithium ion battery. A battery processing method for processing a lithium ion battery including a positive electrode material and a negative electrode material, the method including: a first step in which the lithium ion battery is charged while being cooled, and lithium is deposited in the negative electrode material; a second step for raising the temperature of the lithium ion battery; and a third step in which the lithium ion battery is charged while being cooled again and lithium is deposited in the negative electrode material.

This invention belongs to the technical field of energy storage systems. To further improve the efficiency and peak-shaving flexibility of energy storage systems, a liquefied air energy storage system coupling hydrate cooling, air separation, and liquefied natural gas is proposed. In the energy storage phase, the liquefied air energy storage system compresses and heats air. After expanding to atmospheric pressure, the liquefied air enters a gas-liquid separator. The separated gaseous air serves as return air to provide cooling energy, while the separated liquid air is stored in a liquefied air tank. The cooling energy for air cooling is provided by the return air, liquefied natural gas, and circulating hydrates. In the energy release phase, a portion of the liquid air in the liquefied air tank is pressurized and enters a distillation unit for air separation, producing liquid nitrogen and liquid oxygen. The remaining liquid air is used for power generation. The heating fluid is provided by circulating hydrates. This invention improves the system's economic efficiency and overall energy utilization efficiency.