20results about How to "Realize recycling" patented technology

The invention belongs to the technical field of fine chemical engineering, and particularly relates to a process for preparing nano calcium carbonate by a wet method. A process for preparing nano calcium carbonate by a wet method comprises the following steps: polymerizing N-isopropylacrylamide and vinyl imidazole to generate a copolymer, then adding the copolymer into a calcium hydroxide suspension to form a crystal nucleus, dispersing the crystal nucleus, introducing carbon dioxide gas to carry out carbonization reaction, introducing nitrogen after the reaction is completed, and carrying out vacuum drying to obtain the nano calcium carbonate. Recovering the copolymer to be neutral and desorbing from the crystal surface; and finally, carrying out centrifugal separation, collecting a solid product, and carrying out vacuum drying to obtain the nano calcium carbonate. The nano calcium carbonate prepared by the process is uniform in particle size and good in dispersity. No toxic or harmful auxiliary agent needs to be introduced in the nano calcium carbonate production process, and the production purity is high.

The present application belongs to the technical field of lithium resource extraction. The present application provides a gel-state lithium ion adsorbent and a preparation method and a delithiation method thereof. The preparation method comprises mixing lithium ion sieve material, alginate, galloyl glucose compound and calcium chloride to gel, and then drying to obtain dry gel, thereby obtaining the gel-state lithium ion adsorbent. The preparation method uses alginate and galloyl glucose compound to mix and crosslink, thereby improving the crosslinking strength and the compression resistance of the gel, and making the pore size distribution of the gel more uniform and dense, which is beneficial to improving the lithium extraction capacity. The obtained dry gel has a larger particle size than the powder, and has better hydrophilicity, which can increase the flowability during lithium extraction and reduce the loss, thereby improving the cycle efficiency.

The present application belongs to the technical field of lithium nitrate solution aluminum-lithium separation, and specifically relates to a method for self-adsorption separation and recycling of aluminum nitrate solution containing trace lithium, which comprises the following steps: S1: treating lithium ore or nitric acid leaching solution containing lithium waste by using a nanofiltration membrane to obtain monovalent ion solution mainly containing lithium nitrate and non-mono-valent ion solution mainly containing aluminum nitrate; S2: using the monovalent ion solution obtained in S1 to prepare battery-grade lithium carbonate after purification and impurity removal; S3: adding magnesium oxide or magnesium carbonate to the non-mono-valent ion solution obtained in S1 to adjust the pH to 2-3.4, and the reaction temperature is 40-100 DEG C; S4: washing the Al(OH)3 precipitate obtained in S3 with water to obtain a mixture containing Li + solution and crude Al(OH)3; and subsequent treatment. The present application has the advantages of simple process, low processing cost, high lithium metal recovery rate, green and environmentally-friendly process, good economic benefits, and easy industrialization application.

The utility model belongs to the technical field of activated carbon pickling, and discloses an activated carbon pickling device which comprises a processing table, a pickling mechanism is installed on the surface of the processing table, a waste water filtering assembly is installed on the surface of the processing table and comprises filtering plates, and the filtering plates are symmetrically installed on the bottom face of the processing table. The surface of the filter plate is provided with an inclined surface filter groove, the surface of the inclined surface filter groove is provided with an inclined scraping plate, the surface of the inclined scraping plate is provided with an adjusting plate, the surface of the filter plate is provided with a sliding groove matched with the adjusting plate, and the adjusting plate and the filter plate are in sliding connection through the sliding groove; the surface of the adjusting plate is provided with a sleeve rod, the inside of the sleeve rod is slidably connected with a supporting rod, and the device has the advantages that fine activated carbon impurities in waste water can be filtered, and the situation that the fine activated carbon impurities are discharged along with the waste water, and consequently the waste of activated carbon raw materials is caused is avoided.

The application discloses a waste heat recovery device for sludge pyrolysis, and relates to the technical field of sludge treatment equipment. The waste heat recovery device for sludge pyrolysis comprises, which are sequentially connected in cooperation, a pyrolysis furnace, a preheating furnace, a cooling furnace, a cyclone dust collector, a conveying motor and connecting bolts. The pyrolysis furnace is internally provided with a pyrolysis tube cavity, a ventilation bin and a combustion bin. The preheating furnace is internally provided with heat absorption fins and baffles for heat exchange intensification. The cooling furnace is internally provided with two groups of independent heat dissipation channels formed by double spiral plates. The cyclone dust collector realizes flue gas dust removal and purification. The flue gas and water vapor generated by pyrolysis are preheated after dust removal. Non-condensable gas is recycled as combustion supplementary fuel. Residual heat of sludge residue is used to heat air for combustion oxygen supply and sludge drying. Condensed water vapor is collected and treated through a condensate tank. The device realizes waste heat cascade recycling, has compact and stable structure, high heat exchange efficiency, can significantly reduce energy consumption and reduce secondary pollution, and is suitable for sludge pyrolysis treatment scenes.

This invention discloses a rapid drying device for strontium carbonate, comprising a heater, a feeder, a flash evaporator, a cyclone separator, a coarse bag filter, a water cooling mechanism, a fine bag filter, and a heat exchanger. The air inlet of the heater is connected to the heat exchanger via a return air pipe, and the air outlet of the heater is connected to the flash evaporator. The feeder is connected to the flash evaporator and adds strontium carbonate to be dried into the flash evaporator through the feeder. The outlet of the flash evaporator is connected to the cyclone separator, and the air outlet of the cyclone separator is connected to the coarse bag filter. The outlets of both the cyclone separator and the coarse bag filter are connected to the inlet of the water cooling mechanism. The air outlet of the coarse bag filter is connected to the heat exchanger, and the outlet of the water cooling mechanism is connected to the fine bag filter. This device improves thermal efficiency, enabling continuous production.

The application belongs to the field of water treatment, and particularly relates to a high-porosity compressed silver-loaded activated carbon filter element and a low-temperature bonding manufacturing method thereof, aiming to solve the technical problems of low porosity, poor silver loading stability and high-temperature process destroying the pore structure of the existing activated carbon filter element. The filter element adopts plasma surface activation pretreatment to introduce oxygen-containing functional groups on the surface of the activated carbon as chemical anchor points of silver, realizes the bimodal silver spatial distribution of microporous ionic silver and mesoporous nano silver clusters through hierarchical silver loading treatment, utilizes a composite adhesive system to cooperate with a low-temperature molding and steam setting process, and finally constructs a through microchannel network through the removal of a pore-forming agent. Through the adoption of the above technical scheme, the application can realize high-porosity retention rate, significantly improve the silver loading stability and antibacterial durability, achieve the balance of high strength and low water flow resistance, and the process is green and environmentally friendly, and is suitable for large-scale industrial production.

This utility model discloses a condensate water recycling mechanism for an air conditioner outdoor unit, belonging to the field of air conditioner outdoor unit heat dissipation technology. The mechanism includes a housing and a circulation mechanism. A fan mechanism is fixed inside the housing, as are the circulation and heat exchange mechanisms. A storage mechanism is fixed at the top of the housing. This utility model, through the arrangement of the heat exchange, storage, and spray mechanisms, achieves the recycling and reuse of condensate water and its cooling capacity, effectively improving the heat dissipation efficiency of the air conditioner outdoor unit and reducing energy consumption. The housing, fan, heat exchange, and spray mechanisms also effectively protect the spray and heat exchange mechanisms, preventing dust accumulation in the heat exchange mechanism, reducing maintenance frequency, and extending the device's service life.

The present invention discloses an intelligent thermal energy circulation device and a control method for improving sterilization, belonging to the technical field of drying devices supporting sterilization equipment. It includes a box body, a power unit, a heating unit, and a dehumidification unit. Each unit is connected through a circulation pipeline to form a hot air circulation closed loop; the power unit and the heating unit are arranged below the box body, and the dehumidification unit is arranged above the box body. The heating unit includes a ceramic resistance heating rod with an overheat temperature protector to achieve independent over-temperature protection; the dehumidification unit uses a laminated honeycomb water-cooled plate in combination with a heat dissipation fan to achieve efficient condensation dehumidification. The present invention realizes the recycling of thermal energy through a closed-loop hot air circulation, combines multiple safety protections and intelligent dehumidification control, solves the problems of thermal energy waste, incomplete dehumidification, poor heating safety, drying dead corners, and easy damage of the fan in existing drying equipment, significantly improves the drying efficiency and equipment reliability, and is applicable to the pre-treatment drying process of instruments for hydrogen peroxide low-temperature plasma sterilizers.

The invention discloses high-weldability aluminum-silicon coating steel containing residual element Cu for electric furnace steelmaking and a preparation method of the high-weldability aluminum-silicon coating steel, and belongs to the technical field of metal materials. Based on the innovative thought of copper alloying, the residual element Cu in waste steel is refined, the content of alloying elements Cu in the aluminum-silicon coating steel and the component content of As, Sn, Sb and Bi are precisely regulated and controlled, and the high-weldability aluminum-silicon coating steel containing the residual element Cu is obtained; the invention aims to develop the high-weldability aluminum-silicon coating steel. At present, in the prior art, a certain content of ferrite exists in the microstructure of an aluminum-silicon coating steel welding joint prepared without removing a coating, however, according to the invention, steel components are innovatively designed, and after a residual element Cu is added, the aluminum-silicon coating steel welding joint is subjected to full martensization, so that the mechanical property of the aluminum-silicon coating steel welding joint is remarkably improved. The method disclosed by the invention inherits the concept of sustainable development, realizes recycling of waste steel, and has important significance on development of novel aluminum-silicon coating steel and popularization and application of the novel aluminum-silicon coating steel in the field of laser welding.

The utility model provides a photovoltaic panel cleaning robot relates to robot, include: tracked vehicle, be equipped with sewage tank, filter and fresh water tank on tracked vehicle, clean water jet mechanism, it includes drum support, drum brush, water delivery pipe and water jet pipe, water delivery pipe one end connects fresh water tank, the other end connects water jet pipe, is equipped with a plurality of spray heads in water jet pipe, and waste water recovery system, it includes sewage tank, scraper and sewage pipe, sewage pipe one end connects sewage tank, the other end connects sewage tank, is equipped with sewage pump on sewage pipe, the front side of scraper is contacted with drum brush, the back side extends to the above of sewage tank, makes the scraper can extrude the sewage on the rotating drum brush, makes the extruded sewage fall into the sewage tank. The utility model has the advantages of: realizing sewage recycling, can provide water for photovoltaic panel long time cleaning, reduces the dependence on external water supply, realizes the track self -cleaning of tracked vehicle, avoids the problem that the robot causes photovoltaic panel secondary pollution on photovoltaic panel.

The oil injection slicing system for the molded tiles comprises an oil injection machine, a slicing machine and an inspection machine, the oil injection machine and the slicing machine are both provided with transmission rollers, the oil injection machine carries an oil injection system through a first support, and a roller brush set is arranged below the oil injection system. A first sensor is arranged on a second support at the front end of the slicer, a first sliding rail and a cutting device are arranged in the middle of the slicer, the cutting device comprises a mounting seat, a slicing device and a corner cutting device, a first driving system is arranged in the slicer, and a recycling device is arranged at the bottom of the slicer. The first conveying belt is connected with the slicing machine, the inspection machine is arranged on the first conveying belt, a removing device is arranged on the third support, a second driving system and a second sensor are arranged at the top of the removing device, and a third sensor is arranged on the removing device. The slicing machine is provided with a control system, and the control system is electrically connected with the first sensor, the second sensor, the third sensor, the recycling device, the first driving system, the second driving system and the first conveying belt.

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 utility model discloses a desalting automatic flushing device for a front heater drain pump, which structurally comprises a branch pipeline connected with a desalting water main pipe, a spray head is arranged at one tail end of the branch pipeline far away from the desalting water main pipe, and an adjusting valve, a pressure transmitter and a flow detector are arranged in the middle of the branch pipeline. The pressure transmitter is arranged between the adjusting valve and the flow detector, a salinity detector is arranged on one side face of the front heater drainage pump, a recovery device is arranged on the front heater drainage pump, and the other end of the recovery device is connected to a unit drainage groove. After the technical scheme is adopted, the automatic desalting flushing device for the drainage pump of the front heater, provided by the utility model, has the advantages that the flushing efficiency is improved; and due to the design of the recovery device, the washing water can be recycled, and the practicability is high.

The application discloses an engineering temporary drainage ditch circulating construction method, which comprises the following steps: excavating a ditch, pouring a concrete cushion, laying a PE drainage ditch, installing a prefabricated drainage ditch interface fixing device, filling soil, pouring a concrete slope surface; removing the concrete slope surface, excavating soil bodies on both sides of the PE drainage ditch; dismounting and recycling the prefabricated drainage ditch interface fixing device; and dismounting and recycling the PE drainage ditch. The engineering temporary drainage ditch circulating construction method can protect the interface part of the drainage ditch, prevent the drainage ditch interface from being inwardly extruded and outwardly deformed during operation, avoid the interface from being deviated, leaking or damaged, is helpful to recycling and reuse of the PE drainage ditch, and achieves the purpose of green environmental protection.

The application discloses superhigh-temperature tin residue regenerating integrated equipment and relates to the technical field of metal smelting.The equipment comprises a bottom plate, an installation assembly and a control assembly are arranged on the top outer wall of the bottom plate, a smelting box is connected to the installation assembly, a cooling box is connected to the control assembly, the cooling box contains cooling liquid, the smelting box is square, the cooling box is cylindrical, an electric heating block is arranged on the bottom inner wall of the smelting box, the electric heating block is located at the middle position of the smelting box, and the electric heating block is matched with the smelting box.In the application, the temperature of the electric heating block is adjusted according to the melting points of the metals contained in tin residue in sequence, the molten metal liquid is introduced into a cooling groove after the melting of one kind of metal, the control assembly drives the rotation of the cooling box to drive the rotation of the cooling groove, different cooling grooves are convenient to replace, the operation is simple, the use is convenient, compared with a traditional device, the metals in tin residue can be separated and regenerated in sequence, the renewable utilization of the metals is realized, and metal waste is prevented.

The application discloses a kind of flame-retardant sound insulation noise reduction antibacterial non-woven felt and preparation method thereof, it is related to automotive interior product technical field, including non-woven felt body, the non-woven felt body also includes substrate layer and is arranged in the antibacterial layer of substrate layer, the substrate layer is made of flame-retardant polyester staple fiber, and antibacterial layer is made of inorganic antibacterial material, preparation method also includes the substrate layer that is formed with antibacterial layer is mixed 30% with 80% polyester staple fiber and yarn is made into non-woven felt body by needle punching and / or water jet, spunlaid non-woven process of sticking.This application uses regenerated polyester as raw material, realizes the regeneration and recycling of polyester material, is friendly to environment, and can substantially reduce the cost of industry chain, make hollow structure, can effectively heat insulation sound insulation noise reduction function;Load inorganic antibacterial powder such as nano zinc oxide, nano silver, nano titanium dioxide in hollow structure, can effectively inhibit the adhesion growth of bacteria, mould, effectively prolong the service life of product.

This utility model discloses a recycling device for waste emulsion from machine tool processing, comprising a machine tool body and a cutting mechanism. The cutting mechanism is mounted on the machine tool body, and a storage tank is provided at the bottom of the cutting mechanism. Two rollers are provided near the front of the bottom of the storage tank, and a gear is provided between the two rollers. A vertical rod is fixedly connected to the front of the gear, and a toothed block is fixedly connected to the rear of the vertical rod. In use, when the cutting mechanism of the machine tool body is working, the emulsion is poured into the storage tank. A liquid pump draws out the emulsion and sprays it onto the cutting mechanism through a delivery pipe. The emulsion and cutting waste fall into the screening funnel together. The emulsion passes through the filter screen and enters the bottom of the inner cavity of the storage tank, while the cutting waste remains on the top of the filter screen. The emulsion that enters the bottom of the inner cavity of the storage tank is further drawn out by the liquid pump, thereby realizing the recycling of the emulsion.

The application provides a copper strip trimming and shaping waste recycling device, and belongs to the technical field of metal material recycling. The device solves the problems of long recycling process, high cost, high labor intensity and low production efficiency in the prior art. The copper strip trimming and shaping waste recycling device comprises a rack, a compaction forming assembly and a crushing assembly fixed above the rack, and a material guiding assembly fixed above the crushing assembly. The material guiding assembly comprises a slave rotating shaft and a first rotating motor fixed at one end of a discharging hopper. The first rotating motor output shaft is fixed with a main rotating shaft. The main rotating shaft and the slave rotating shaft are both fixed with belt pulleys at the other end. Transmission belts are fixed between the two belt pulleys. The main rotating shaft outer wall is fixed with a guide roller. The slave rotating shaft outer wall is fixed with a rubber roller. The device has the advantages of on-line continuous waste recycling and direct utilization in the copper strip trimming and shaping process.

This invention provides a method and system for treating and reusing wastewater from the tail gas oxidation absorption process of a natural gas purification plant. The system includes: neutralizing pre-washing wastewater and amine purification wastewater generated from the tail gas oxidation absorption process of the natural gas purification plant to obtain neutralized wastewater to be treated; wherein the neutralization is achieved by mixing the pre-washing wastewater and amine purification wastewater and adjusting the pH value to 6-7; subjecting the neutralized wastewater to aeration oxidation to obtain aeration-oxidized wastewater; subjecting the aeration-oxidized wastewater to adsorption treatment using carboxylated activated carbon to obtain adsorbed wastewater; subjecting the adsorbed wastewater to reverse osmosis membrane treatment to obtain concentrated water and desalinated water; subjecting the concentrated water to evaporation desalination to obtain crystalline salt and evaporation condensate; and reusing the evaporation condensate and desalinated water together as greywater.