7106 results about "Inert gas" patented technology

Systems, assemblies, and methods to enhance extraction of pyrophoric materials from a refinery apparatus may include supplying a pressurized fluid to a plurality of vacuum generators, and generating, via the plurality of vacuum generators using the pressurized fluid, a vacuum flow. A manifold may provide a flow path for the vacuum flow, and pyrophoric material may be extracted from the refinery apparatus via the vacuum flow to a material collector through which the vacuum flow passes, depositing at least a portion of the extracted pyrophoric material in the material collector. One or more of inert gas or a cooling medium may be supplied to the material collector.

The invention discloses a chitosan modified lithium iron phosphate and carbon composite positive electrode material and a preparation method thereof.The preparation method comprises the steps that 1, lithium hydroxide, phosphoric acid and ferrous sulfate heptahydrate are mixed to prepare a uniform and stable solution, and a lithium iron phosphate precursor is prepared through a solvothermal method; step 2, dissolving chitosan in an acetic acid aqueous solution, and magnetically stirring under a water bath condition until the chitosan is completely dissolved to prepare a chitosan solution; and 3, adding the lithium iron phosphate precursor into a chitosan solution, uniformly mixing, carrying out ball milling and freeze drying, and carrying out high-temperature carbonization treatment in an inert gas to obtain the chitosan modified lithium iron phosphate and carbon composite positive electrode material. The method is simple to operate, low in cost and uniform in product particle size distribution.

The invention relates to the technical field of organic chemical synthesis, in particular to a preparation method of 3, 4 '-diaminodiphenyl ether.The preparation method comprises the steps that S1, under inert gas and in a first solvent, m-dinitrobenzene and p-acetamidophenol are subjected to a heating reaction under the condition of a weak base catalyst, and 3-nitro-4-acetamido diphenyl ether is prepared; s2, in a second solvent, the 3-nitro-4-acetamido diphenyl ether is subjected to a hydrogenation reduction reaction, and 3-amino-4-acetamido diphenyl ether is prepared; and S3, dissolving the 3-amino-4-acetaminodiphenyl ether in an alcohol solvent system, adding an aqueous solution of alkali, controlling the reaction temperature, carrying out a hydrolysis reaction, and after the reaction is finished, carrying out post-treatment to obtain the 3, 4 '-diaminodiphenyl ether. The preparation method provided by the invention has the advantages of easily available raw materials, low price, good selectivity and high product yield, and is more suitable for industrial production by comprehensively considering economical efficiency and safety.

The invention provides a method and system for detecting the content of platinum, palladium and rhodium in an automobile exhaust purification catalyst and application, and relates to the technical field of automobile exhaust purification, the method comprises the following steps: crushing, grinding, sieving, performing microwave acidolysis, neutralizing, washing and drying a catalyst sample to obtain dry filter residues; a trapping agent and a fluxing agent are added into the dry filter residues, constant-temperature heating is conducted in inert gas, then cooling forming is conducted, and an alloy button is obtained; blowing ash on the alloy, then adding mixed acid into the alloy, heating the alloy in a water bath at 95 DEG C for 25-35 minutes to obtain a dissolved solution, then adding a masking agent into the dissolved solution, and oscillating to obtain a solution to be detected; and filtering the liquid to be detected, fixing the volume and detecting. According to the method, precise quantification of trace platinum, palladium and rhodium in the complex matrix catalyst can be realized, and the method has a relatively high recovery rate; meanwhile, pollution elements are prevented from being used, and the method is green and efficient and better conforms to the concept of green chemistry.

The invention relates to the technical field of safety and environmental protection, in particular to a negative-pressure circulating explosion-control dust removal method suitable for combustible dust places, which comprises the following steps: firstly, sealing a bin body and injecting carbon dioxide-nitrogen inert gas to generate a low-oxygen environment; then, a flow guide angle-adjustable cyclone separator, a dielectric barrier discharge plasma reactor and a waste heat thermo-acoustic transducer are driven to cooperatively capture dust, and sound node amplitude synthesis capture data are obtained through compressed sensing of a microphone; inputting the environment data and the capture data into a reinforcement learning process containing a micro-thermochemistry model, and outputting instructions for adjusting negative pressure pulse, inert flow, sound field intensity and cyclone geometry; in combination with distributed radio frequency imaging data, an adversarial digital twinborn model is generated to predict explosion free energy, and automatic rollback or shutdown is carried out when the explosion free energy exceeds a threshold, so that a safe, efficient and low-energy-consumption closed loop is formed.

The invention relates to the technical field of gas sampling, in particular to a gas in-situ sampling device suitable for a medium-high temperature geothermal field, the core of the gas in-situ sampling device is a sealed cabin, and the sealed cabin is internally integrated with a pressure stabilizing and separating unit which comprises a gas-liquid separating chamber with a lower inlet and an upper outlet so as to realize gas-liquid separation by utilizing gravity settling; at least one forevacuum sampling bottle for containing samples and at least one purging bottle pre-filled with high-pressure inert gas are arranged on the disc type magazine; the rotary positioning module is used for rotating the disc type magazine so as to align the bottle opening of the sampling bottle or the purging bottle to the outlet of the pressure stabilizing and separating unit; and the linear butt joint module is used for pushing the selected sampling bottle or purging bottle, so that the bottle opening of the selected sampling bottle or purging bottle is in butt joint with the outlet of the pressure stabilizing and separating unit. According to the embodiment of the invention, through cooperative operation of the rotary positioning module and the linear docking module in the sealed cabin, automatic operation of single-time well descending and multiple sampling is realized.

The invention belongs to the technical field of liquid metal coating and infiltration in grinding machining, and particularly relates to a temperature-control ultrasonic composite liquid gallium auxiliary grinding device and method for a micro engine blade, and the device comprises a fluid conveying module, a temperature adjusting module, a machining module, an ultrasonic vibration module and an electromagnetic field generator. Temperature control of liquid gallium is achieved by arranging a microwave cavity and a cooling system, stable supply is guaranteed through inert gas and a liquid gallium conveying pipeline, and uniform coating and ultrasonic vibration infiltration on the surface of the blade of the micro engine are achieved by combining an ultrasonic transduction assembly and a spraying nozzle. The electromagnetic field generator further enhances the adhesion and lubrication effects of the liquid gallium on the grinding wheel and the blades. The defects of insufficient grinding temperature control and lubrication of a traditional grinding wheel are overcome, the grinding temperature rise and the friction coefficient are effectively reduced, thermal damage and surface deformation are avoided, and the machining precision and the surface quality of complex curved surfaces and tenon tooth parts are improved.

An apparatus and method for determining the presence of a disease by analyzing a specimen by providing a vial partially containing the specimen and partially containing a headspace above the specimen, injecting an inert gas into the specimen in the vial to cause bubbling of the gas throughout at least a portion of the specimen such that the gas mixes with volatile organic compounds (VOCs) present in the specimen to create a VOC / gas mixture that is released into the headspace, collecting the VOC / gas mixture from the headspace in the vial, supplying the VOC / gas mixture to a chamber within the apparatus, causing the VOC / gas mixture to pass over a sensor array in proximity to the chamber, the sensor array generating an electrical signal as a function of VOCs detected in the VOC / gas mixture, and processing the electrical signal to determine the presence of a disease in the specimen.

The invention relates to the technical field of length measurement, and particularly discloses a length measurement device based on laser interference, which comprises a laser measurement module, an air curtain channel module, an air curtain construction module and a channel adjustment module, the laser measuring module is used for transmitting and receiving laser, the optical path difference change is measured according to the interference principle, and the micro length change of the workpiece can be continuously and accurately measured in real time while the machining module carries out machining operation on the workpiece; a linear channel is formed between the laser head and the measuring reflector through the air curtain channel module, inert gas is continuously introduced into the channel through the air curtain construction module, and an air curtain atmosphere with stable laminar flow is formed, so that pollutants and interference factors such as oil mist, dust, cutting fluid splashing and hot air turbulence generated in a machining area are effectively blocked, and the machining precision is improved. Therefore, the measurement light beam is prevented from being interfered by environmental factors in the propagation process.

The invention discloses a photoresist micro-lens array preparation method and system, and relates to the field of micro-nano optical device manufacturing. The preparation method of the photoresist micro-lens array comprises the following steps: carrying out chemical mechanical polishing treatment on a silicon wafer, spin-coating photoresist on a substrate to form a cylindrical array, and eliminating solvent gradient through pre-drying; forming a fluorocarbon nano film on the surface of the photoresist through plasma deposition so as to reduce the surface energy of the photoresist; realizing hot reflux of the photoresist based on gradient annealing, wherein the gradient annealing comprises a preheating section, a main reflux section and a stable section; on the basis of the preheating section, glass transition stress is avoided, fluorine-containing gas and inert gas are synchronously introduced into the main backflow section to act on a plasma sheath layer, so that the flowing direction of photoresist is regulated and controlled, and the edge coffee ring effect is inhibited; the stable section synchronously performs plasma assistance to lock the shape; and the precision and the consistency of the micro-lens array are improved through segmented temperature regulation and control and a plasma auxiliary technology.

The invention belongs to the technical field of sodium ion battery hard carbon negative electrode materials, and particularly relates to a phenolic resin asphalt super-crosslinking hard carbon composite active material and a preparation method and application thereof.The preparation method comprises the steps of phenolic resin precursor synthesis, oxidized asphalt precursor synthesis, super-crosslinking reaction and stepped carbonization; the preparation method comprises the following steps: reacting phenol with formaldehyde under the action of a catalyst to obtain a phenolic resin precursor; pre-oxidizing the coated asphalt in an air atmosphere to generate an asphalt precursor; the preparation method comprises the following steps: mixing a phenolic resin precursor with an asphalt precursor, adding an acid catalyst into an organic solvent, and performing reflux heating to form a chemically bonded three-dimensional cross-linked network structure; and sequentially carrying out low-temperature pre-carbonization and high-temperature carbonization in an inert gas atmosphere to obtain a target product, namely the hard carbon composite material. The target product provided by the invention has rich closed pore and multistage through pore structure hard carbon, and the sodium storage capacity of the hard carbon material is effectively improved.

Disclosed in the present invention are a biomass-derived graded porous asymmetric coordination monatomic carbon-based electrocatalyst, and a preparation method therefor and the use thereof. The preparation method for the biomass-derived graded porous asymmetric coordination monatomic carbon-based electrocatalyst comprises the following steps: (1) stirring and mixing de-alkalized lignin with a transition metal salt, a nitrogen-containing compound and a template, i.e., magnesium oxide, in a solvent until uniform, so as to obtain a suspension, wherein the transition metal comprises iron and zinc; (2) heating, evaporating and drying off the suspension, so as to obtain a lignin / metal ion / nitrogen-containing compound / template mixed precursor; and (3) subjecting the mixed precursor to high-temperature pyrolysis under the protection of an inert gas, cooling same, and then sequentially washing and drying same, so as to obtain a monatomic carbon-based electrocatalyst. The monatomic carbon-based electrocatalyst provided in the present invention has graded pores of micropores, mesopores and macropores, a surface nanosheet and an asymmetric coordination structure of Fe-N3O at the same time, and can be applied to fuel cells and metal-air cells.

The invention provides an inert gas generation system, and relates to the technical field of industrial gas production. The inert gas generation system comprises the following modules: a gas pretreatment module, an intelligent separation module, a dynamic purification module, a pressure regulation and control module, a quality analysis module, a safety control module and an energy efficiency optimization module, and the gas pretreatment module is used for removing particulate matters through an electrostatic dust collection device by adopting a multi-stage gradient filtering algorithm based on ambient air input, adjusting humidity by combining a dew point control technology, forming a standardized gas source and generating a standard gas source. Through combination of a multi-stage gradient filtering algorithm and a dew point control technology, collaborative treatment of particulate matters and humidity is realized, stable gas source input is formed, the reliability of a subsequent processing link is improved, membrane separation parameters are dynamically predicted by applying a convolutional neural network model, and the permeation efficiency of a hollow fiber membrane stack is optimized.

The invention discloses a multi-scale synergistically enhanced self-healing solid polymer electrolyte and a preparation method thereof, and belongs to the technical field of electrolyte materials. The preparation method of the electrolyte comprises the following steps: S1, adding the eight-arm star polymer, the carborane lithium salt, the neutral plastic crystal additive, the ionic liquid monomer and the crown ether functionalized boron alkene two-dimensional filler into a mixed solvent to form electrolyte slurry; s2, uniformly coating a base material with the electrolyte slurry to form a wet film, and drying the wet film; s3, transferring the dried membrane to an environment filled with inert gas, and initiating in-situ polymerization of an ionic liquid monomer by using ultraviolet irradiation to form a polyionic liquid nanofiber network; and S4, placing the membrane under a vacuum condition at a constant temperature of 120 DEG C for 5 hours to obtain the solid polymer electrolyte membrane. The solid polymer electrolyte membrane provided by the invention overcomes the problems of low ionic conductivity, low lithium ion transference number, insufficient mechanical properties, poor interface stability, narrow electrochemical window and the like of the existing solid polymer electrolyte.

The invention discloses a method for preparing a carbon monoxide oxidation catalyst by using red mud and tungsten-molybdenum smelting slag, which comprises the following steps of: uniformly stirring and mixing the red mud and the tungsten-molybdenum smelting slag at a high speed, mixing with inorganic strong acid, and performing ultrasonic-assisted stirring to obtain acid leaching slag; the acid leaching residues are subjected to low-temperature plasma activating treatment and then microwave activating treatment, and microwave activated plasma residues are obtained; weighing tricalcium phosphate and microwave activated plasma slag, and uniformly stirring to obtain phosphorus-calcium doped activated slag; weighing an ammonium sulfide solution and the phosphorus-calcium doped activated slag, uniformly stirring, transferring the obtained sulfur-phosphorus-calcium doped activated slag into a hydrothermal reaction kettle, carrying out hydrothermal reaction, carrying out compression molding on the obtained hydrothermal composite material, and carrying out pyrolysis carbonization treatment in an inert gas atmosphere to obtain the phosphorus-calcium doped activated slag. The obtained pyrolysis composite material is soaked with a silane coupling agent solution and then roasted again, and the carbon monoxide oxidation catalyst is obtained. The catalyst prepared by the invention can realize efficient oxidation photocatalysis of carbon monoxide under the conditions of normal temperature and normal pressure.

The invention relates to the technical field of gas detection, in particular to a gas detection system and method based on an AI technology, and the system comprises a differential sensing module, a drift compensation processor, a dynamic risk assessment unit and a cloud-edge collaborative learning framework. Compared with the prior art which adopts a single-sensor independent compensation scheme and has the defects that the false alarm rate is high and long-term drift is difficult to correct under environmental interference, the scheme innovatively introduces a dual-mode differential sensing architecture and an adaptive drift compensation algorithm, a reference sensor is packaged in an inert gas environment, and the reference sensor and a main sensor are subjected to real-time collaborative analysis; the pre-trained lightweight neural network is combined to dynamically eliminate temperature and humidity cross interference, the detection precision and stability under complex working conditions are remarkably improved, and the aging distortion problem of the semiconductor sensor is effectively solved.

The invention relates to the technical field of semiconductor etching materials, and provides a method for preparing a high-resistivity silicon carbide material and the silicon carbide material. The method comprises the following steps that a substrate is placed in chemical vapor deposition equipment, the chemical vapor deposition equipment is vacuumized, and then inert gas is introduced; silicon carbon source gas and carrier gas are injected into the chemical vapor deposition equipment through a first gas inlet channel, boron source gas is injected into the chemical vapor deposition equipment through a second gas inlet channel, and silicon carbide is deposited on the surface of the substrate through a chemical vapor deposition process; after gradient annealing is carried out, the substrate is removed; wherein in the step 2, the distance between the air inlet of the first air inlet channel and the air inlet of the second air inlet channel is larger than or equal to 20 cm. According to the method, the doping amount of boron in silicon carbide can be obviously improved, so that the resistivity of silicon carbide is improved, and the etching resistance of silicon carbide is improved.

The invention discloses a modified silicon negative electrode material and a preparation method and application thereof, belongs to the technical field of all-solid-state batteries, and can compensate the active lithium loss of the whole battery, improve the cycle performance of the battery and relieve the volume change through negative electrode pre-lithiation. The method comprises the following steps: pressing silicon powder into blocks under a certain pressure; coating the blocky silicon and the cut lithium foil according to a certain proportion, grinding and mixing to obtain a precursor I; under the protection of inert gas, the precursor I is heated for the first time, and a powder precursor II is obtained; and grinding the precursor II, pressing the precursor II into blocks, heating the blocks in a vacuum or inert atmosphere to a preset temperature, and grinding the blocks to obtain the lithium-silicon alloy. The preparation process is simple, the silicon negative electrodes with different pre-lithiation degrees can be prepared by controlling the lithium addition amount, the cycling stability of the battery is improved, and the volume expansion of the electrode is relieved.

The invention discloses atomic layer deposition equipment and a deposition method, and the atomic layer deposition equipment comprises a reaction cavity; the first end of the main gas inlet pipeline is communicated with a reaction gas source, and the second end of the main gas inlet pipeline is communicated with the reaction cavity; the first end of the pressure control pipeline communicates with the main air inlet pipeline, and the second end communicates with the air pump; the first end of the inert gas pipeline is communicated with an inert gas source, and the second end is communicated with the reaction cavity; the first end of the exhaust pipeline is communicated with the reaction cavity, and the second end is communicated with the air pump. When the atomic layer deposition equipment introduces the reaction gas into the main gas inlet pipeline, the pressure in the pressure control pipeline is controlled to be greater than the pressure in the reaction cavity, so that the pressure of the reaction gas in the main gas inlet pipeline is rapidly increased in a short time, and the reaction gas is pressed into the reaction cavity and adsorbed on a substrate.

The invention relates to the technical field of battery raw materials, in particular to a preparation method of lithium sulfide powder, the lithium sulfide powder and application, and the preparation method comprises the following steps: uniformly mixing lithium sulfate and a carbon source according to a preset proportion to obtain a first mixture; performing first heat treatment on the first mixture in inert gas to obtain a second mixture; and performing second heat treatment on the second mixture in reducing gas to obtain the lithium sulfide powder. The product obtained by the preparation method disclosed by the invention is the lithium sulfide powder, and the obtained lithium sulfide powder has the advantages of less oxygen and carbon impurities, higher purity and high reaction activity, and meets the synthesis requirements of the electrolyte; according to the preparation method, in the process of preparing lithium sulfide, toxic gas and organic solvent are not used, the reaction temperature is low, the energy consumption is low, the requirement on production equipment is low, the process is simple, the cost is low, harmful gas emission is avoided, safety and environment friendliness are achieved, and industrialization is easy to achieve.

The invention discloses a method for synthesizing electronic-grade ethyl acetate through catalytic esterification of acidic ion exchange resin, and belongs to the technical field of ethyl acetate preparation. The method comprises the following steps: mixing crosslinked polystyrene white balls and a swelling agent, and dropwise adding concentrated sulfuric acid for reaction to obtain S-PS resin; mixing an EDTA disodium salt saturated solution and a polyacrylic acid solution, adding a cross-linking agent and an emulsifier, and carrying out a cross-linking curing reaction to obtain EDTA microcapsules; the preparation method comprises the following steps: dispersing S-PS resin in a solvent, adding EDTA microcapsules, a dehydration condensation agent and a catalyst, reacting under the protection of inert gas, and filtering and recovering after the reaction is finished to obtain S-PS-EDTA resin; mixing glacial acetic acid, absolute ethyl alcohol and S-PS (at) EDTA resin for reaction, and filtering and collecting liquid after the reaction is finished; and rectifying the collected liquid to obtain the product. According to the method provided by the invention, metal impurities can be chelated in the synthesis process, and the electronic-grade ethyl acetate with high purity and low impurity content is produced.

The invention relates to the technical field of rust-proof treatment of metal products, in particular to a rust-proof discoloration-proof packaging system and method for a bronze-plated tire bead wire. The system sequentially comprises a cleaning unit, a surface treatment unit, a drying box, a film coating device, a cooling unit, a post-treatment unit, a take-up device and a packaging system according to the process. The core of the process method is as follows: the steel wire is immediately coated with a special antirust film coating agent to be cured by using waste heat generated after the steel wire is dried, and the film coating agent comprises water-based resin, a silane coupling agent, a conductive polymer, a nano filler and benzotriazole; during packaging, an intelligent packaging system with a built-in humidity response humidity control bag is adopted, and the humidity control bag can automatically release inert gas and a moisture absorbent when the environment humidity reaches a preset threshold value. Multiple synergistic protection on the surface of the steel wire is achieved, the anti-rust period is remarkably prolonged to 12 months or above through dynamic humidity control, meanwhile, the bonding performance and the retention rate of the steel wire and rubber are improved, and energy conservation and environment protection are achieved.

The invention relates to the technical field of spaceflight material forming, in particular to a tension control winding process of a spaceflight carbon fiber composite launch canister, which comprises pretreatment, winding forming, curing and post-treatment. The method comprises the following steps: S1, coating a release agent and a modified coating after processing a core mold, carrying out plasma treatment and eliminating stress; the carbon fiber filaments are soaked in resin containing nanometer components, and are pre-stretched after a hot melting reaction; s2, closed-loop tension control is conducted, winding is conducted according to segmented angles, and modified resin is coated between layers to be overlapped in a crossed mode; s3, stepwise heating and curing, dynamically regulating the pressure and introducing inert gas; and S4, polishing after hydraulic demolding, carrying out sand blasting, carrying out transition layer and ceramic coating, and carrying out multi-dimensional detection. According to the process, the mechanical property and environmental adaptability of the launch canister are improved, the process precision is high, defects are reduced, the forming time is shortened, the rework rate and cost are reduced, the spaceflight requirement is met, and the process is suitable for batch production.

The invention discloses a double-push-plate type nitrogen protection resistance furnace and an atmosphere circulation purification control assembly, relates to the technical field of resistance furnaces, and aims at solving the problems that when cavities of the double-push-plate type nitrogen protection resistance furnace are communicated, temperatures interfere with one another, and the temperature of a furnace chamber is influenced by supplementing a protective atmosphere. The furnace body assembly is formed by connecting a plurality of independent cavities in series, the adjacent cavities are provided with openable isolation doors, and each cavity is provided with a nitrogen inlet / outlet, a temperature and pressure sensor and a heating assembly; the inert gas circulation structure achieves circulation supply and purification of protective gas, the gas supply amount of a single cavity can be adjusted, the atmosphere temperature and pressure cooperative control system integrates a parameter collection module, a temperature and pressure reference setting module, a temperature recovery compensation module, a pressure balance adjustment module and a closed-loop control module, and a gas purity monitoring module is additionally arranged. And a temperature and pressure cooperative control closed loop is formed through secondary feedback control, so that accurate regulation and control of the temperature and pressure of each cavity, recycling and reusing of waste heat of protective gas and dynamic maintenance of purity are realized.

A copper-aluminum composite plate material prepared by aluminum liquid continuous casting and a process thereof. The method includes: S1, heating an aluminum ingot to 700-800° C. and smelting for 1-3 h; S2, degassing smelted aluminum liquid, and keeping the temperature and standing; S3, texturing a copper strip, and then cleaning; S4, heating the pretreated copper strip to 200-650° C.; S5, under the protection of inert gas, continuously casting the treated aluminum liquid on the treated copper strip, performing quenching crystallization on a copper-aluminum composite material, and performing oxygen-free continuous casting; and S6, continuous rolling: rolling the continuously cast copper-aluminum composite material to obtain the copper-aluminum composite plate material prepared by aluminum liquid continuous casting.

The invention relates to the technical field of lithium ion batteries, in particular to a silicon-carbon negative electrode material and a preparation method thereof. The preparation method of the silicon-carbon negative electrode material comprises the following steps: carrying out liquid-phase coating treatment on a porous carbon material and a fast ion conductor precursor to form a porous carbon material coated with a fast ion conductor so as to prepare a modified porous carbon material; carrying out first chemical vapor deposition treatment by taking silane gas as a deposition precursor, and depositing nano silicon on the surface of the modified porous carbon material to prepare a silicon-carbon core; and carrying out secondary chemical vapor deposition treatment by taking a soft carbon gas source as a deposition precursor in an inert gas atmosphere, and depositing nano soft carbon on the surface of the silicon-carbon inner core to prepare the silicon-carbon negative electrode material. The preparation method of the silicon-carbon negative electrode material solves the technical problem that the electrochemical performance of the silicon-carbon material is poor due to the fact that the volume of the existing silicon material is expanded and the ionic conduction performance is reduced by a carbon coating technology.

The invention discloses a cosmetic glass bottle surface polishing method and system, and the method comprises the steps: carrying out gradient mesh abrasive composite modification on a sand leather base material, and carrying out three-dimensional cutting according to the surface curve contour of a glass bottle through a laser cutting technology to form a composite sand leather polishing piece; the composite sand leather grinding piece is assembled at the executing end of a six-axis linkage mechanical arm, partition differentiated grinding is carried out according to the surface pollutant distribution density image recognition result, and a glass bottle rough blank obtained after preliminary grinding is obtained; performing synchronous purging on the surface of the glass bottle rough blank by adopting inert gas flow with a micro-bubble generation device, and controlling the composite sand leather polishing piece to perform micro-vibration at the same time, so as to obtain a glass bottle semi-finished blank; and the glass bottle semi-finished blank is placed in a sealed cavity to be sprayed, final polishing is carried out in cooperation with pulse type ultrasonic vibration, and a cosmetic glass bottle finished product is obtained. According to the embodiment of the invention, high-precision grinding of the curved surface of the glass bottle can be realized, and the surface cleanliness and the gloss uniformity are improved.

The invention relates to an air pre-impurity-removal control method and system for enrichment and separation of Kr, and relates to the technical field of gas separation and purification, and the air pre-impurity-removal control method comprises the following steps: removing impurity components in air through an impurity removal device to obtain air subjected to impurity removal treatment; carrying out multi-stage enrichment and separation treatment on the air subjected to impurity removal treatment to obtain enriched Kr gas; and introducing the enriched Kr gas into a chromatographic separation device, and separating krypton from other inert gases to obtain a target krypton component. The problems that in the traditional Kr enrichment and separation process, due to the fact that air impurities are prone to icing, the device is blocked, the multi-stage separation parameter adaptability is poor, and the enrichment efficiency is low are solved, and through pre-impurity removal of intelligent parameter configuration and multi-stage enrichment of gradient temperature control, the Kr separation stability, the enrichment efficiency and the target component purity are improved.

The invention provides a dimming window assembly which comprises window glass (1), an adhesive (2), an adhesive film (3), an adhesive (4) and dimming glass (5), a cavity (6) is defined by the inner side of the window glass (1), the adhesive (2), the adhesive film (3), the adhesive (4) and the dimming glass (5), and the cavity (6) is filled with nano SiO2 aerogel particles or / and inert gas. Transparent glass on an existing vehicle window and an existing building window can be subjected to after-installation transformation, and therefore the functions of dimming, heat insulation, energy saving, displaying and the like of the existing window are achieved.

The application discloses a method for preparing high-purity battery-grade lithium sulfide by reducing lithium sulfate with a reducing gas. The specific steps are as follows: raw material lithium sulfate and inert wave-absorbing substances are mixed, uniformly mechanically ball-milled, tablet-pressed, sieved, put into a microwave reactor, and then a reducing gas is introduced for microwave heating reaction; after cooling to room temperature, the mixture is discharged into another reactor, ethanol is added for dissolution, mechanical stirring is carried out, and then standing and filtration are performed; the inert wave-absorbing substances are recycled and reused; an ethanol solution of dissolved lithium sulfide is obtained; crude lithium sulfide is obtained by heating and distillation; after freeze-drying, the crude lithium sulfide is heated and secondarily calcined in a rotary furnace under the protection of inert gas, and finally battery-grade high-purity lithium sulfide is obtained. By mixing the inert wave-absorbing substances with the lithium sulfate and heating by the microwave method, the contact surface of the lithium sulfate and the gas can be improved, and in addition, the internal heating method can be used to avoid the lithium sulfide formed on the outer surface from wrapping the raw material lithium sulfate, so as to affect the hydrogen reduction efficiency.