36results about How to "Fully oxidized" patented technology

The invention relates to the field of waste gas treatment, and discloses a VOC waste gas treatment system with rotary zeolite and a treatment method. Adsorption and desorption functions of rotary zeolite equipment are integrated in a rotary structure, and waste gas is subjected to adsorption treatment through an adsorption part of the rotary zeolite equipment; the waste gas can be heated through a desorption pipeline and then adsorbed through a desorption part of the rotary zeolite equipment, and then the waste gas subjected to combustion treatment through the efficient combustion equipment is safely discharged through an exhaust tower; after VOC waste gas enters a certain combustion chamber of the high-efficiency combustion equipment, the VOC gas is switched to enter another combustion chamber of the high-efficiency combustion equipment, and the previous combustion chamber is connected with a purging fan, so that cooling air enters the chamber, and the temperature is reduced; the three combustion chambers are alternately used, one chamber is used for combustion, one chamber is used for transmission, and the other chamber is used for cooling and purging, so that continuous and efficient combustion is guaranteed, meanwhile, long-term stable operation is guaranteed, and the environment-friendly emission standard is met.

The invention discloses a purification method and a purification device for crystallized magnesium, and relates to the field of magnesium metal smelting. The method comprises the following steps: under the protection of an inert atmosphere, firstly carrying out pressure-applying melting treatment on a magnesium material to be smelted, and then carrying out pressure-applying filtering treatment on a product obtained after the melting treatment, so as to complete the flux-free smelting process of the magnesium material. And meanwhile, the metal magnesium liquid and most of the oxide shells are separated by utilizing the liquidity difference between the liquid metal magnesium and the solid oxide shells. Compared with a conventional smelting process without pressure application, the method has the advantages that the melting rate of the crystallized magnesium can be remarkably increased, most of oxide impurities are removed, a series of pollution problems caused by flux use are solved from the source, and low-cost, high-efficiency and high-quality smelting of the crystallized magnesium is realized.

The invention discloses an oxidation reaction device for an isotope analysis system, and belongs to the technical field of carbon isotope analysis systems.The gas inlet end of the oxidation reaction device is communicated with a gas chromatography, and the gas outlet end of the oxidation reaction device is communicated with an isotope ratio mass spectrometry. A gas inlet end of the heating furnace is communicated with a gas outlet of the gas chromatography, and a gas outlet end of the heating furnace is communicated with the isotope ratio mass spectrum; the oxidizing agent spraying structure is at least partially arranged at the upper end of the inner cavity so as to uniformly spray an oxidizing agent into the inner cavity; the oxidizing agent circulating structure is communicated with the oxidizing agent spraying structure through a first pipeline, and the oxidizing agent circulating structure conveys the oxidizing agent sprayed by the oxidizing agent spraying structure and collected at the bottom of the inner cavity to the oxidizing agent spraying structure again, so that repeated utilization of the oxidizing agent is achieved. According to the invention, by arranging the oxidant spraying structure, an oxidant is uniformly scattered in the heating furnace, so that the oxidation reaction is more sufficient, and the oxidation effect is enhanced.

The utility model discloses a natural gas chemical looping combustion system which is characterized in that a reduction-state oxygen carrier in the system is in direct contact with air in an air reactor, the oxygen carrier is oxidized, and after the oxidation-state oxygen carrier and the air enter a cyclone separator to be separated, the oxygen carrier is conveyed to a fuel reactor to be mixed with gas fuel; sufficient combustion of gas fuel is achieved, high-temperature flue gas full of water vapor and CO2 is generated, and the high-temperature flue gas carries a reduction-state oxygen carrier to enter a separator. After passing through the separator, the oxygen carrier is captured and returned to the fuel reactor and is conveyed back to the air reactor through the controllable valve for the next circulation, and the high-temperature flue gas enters a flue gas treatment system. Part of the high-temperature flue gas enters the material returning device and the controllable valve through the circulating fan to be subjected to material fluidization, so that energy consumption is reduced, water vapor contained in the rest high-temperature flue gas is condensed through heat exchange cooling, high-purity CO2 gas is obtained, and efficient combustion of gas fuel and efficient separation of CO2 are achieved.

The invention discloses a ruthenium-iridium composite electrode prepared by an electrochemical codeposition method and a preparation method and application thereof, and the preparation method of the ruthenium-iridium composite electrode comprises the following steps: 1) taking a titanium sheet as an anode, taking a platinum electrode or graphite as a cathode, and placing the anode and the cathode in an aqueous solution containing F <-> for anodic oxidation; (2) putting the sample subjected to anodic oxidation into a tube furnace, and carrying out heat treatment in argon or nitrogen to obtain an anatase type TiO2 nanotube; 3) taking the TiO2 nanotube as a cathode, and controlling a certain current in an aqueous solution containing Ru salt, Ir salt, NaNO3 and a small amount of SbCl3 for co-deposition to obtain Ru and Ir nanocrystals; and 4) fully oxidizing the sample deposited with the Ru and Ir nanocrystals at a certain temperature to obtain the ruthenium-iridium composite metal oxide electrode. The method is short in technological process and high in precious metal raw material utilization rate, and the prepared ruthenium-iridium composite metal oxide electrode has the advantages of being high in chlorine evolution electrocatalytic activity and long in service life. As an electrode material, the material has important application prospects and is suitable for the fields of chlor-alkali industry, water treatment, metallurgy and the like.

The utility model discloses a wind volume self -adaptation heat accumulation type organic waste gas treatment integrated machine relates to heat accumulation type organic waste gas treatment technical field, including no. The utility model discloses a solenoid valve, wind speed and volume sensor, temperature sensor and control module are set up, so that wind speed and volume sensor can carry out real -time monitoring to the wind speed and volume of inside flow of no.

This application discloses an equipment fixture belonging to the field of material testing technology, used to improve the accuracy of material yellowing resistance testing. The equipment fixture includes: a test chamber; a rotating disk disposed inside the test chamber; and a clamp disposed on the rotating disk.

The invention relates to the technical field of waste gas incineration treatment, and particularly discloses a tail gas combustion furnace which comprises a furnace body, a first gas inlet and a second gas inlet are formed in the furnace body, a mixing mechanism, a gas inlet assembly and an adjusting piece are arranged in the furnace body, the mixing mechanism comprises a connecting piece and a plurality of mixing pieces, a connecting shaft is further coaxially arranged in the furnace body, and the connecting piece is arranged on the connecting shaft in a sleeving mode. The mixing pieces are arranged on the peripheral side of the connecting piece, the first air inlet is connected with the connecting piece through an air inlet channel, the connecting piece is provided with a plurality of connecting holes communicated with the interiors of the mixing pieces, the mixing pieces are provided with air outlet holes, the air inlet assembly comprises an air inlet cavity and a movable piece, the second air inlet is communicated with the air inlet cavity through an air inlet pipe, and the connecting shaft is sleeved with the air inlet cavity. The movable part is movably arranged in the gas inlet cavity, the gas inlet cavity and the movable part are provided with movably opposite through holes, a flow guide cavity is further formed in the furnace body, and the flow guide cavity is arranged in the circumferential direction of the inner wall of the furnace body in an attached mode.

The invention discloses a multi-stage plasma treatment device and method for enhancing removal of chlorinated organic compounds in factory water of a waterworks. The multi-stage plasma treatment device comprises a diameter change reaction container, a bearing shaft fixing and transmission device, a bearing shaft, a working electrode and turbulent flow fan blades. The diameter-variable reaction container is a cylinder of which the radius is gradually reduced, and sequentially comprises a water inlet, a turbulent flow section, three treatment sections and a water outlet; the inner side of the bearing shaft fixing and transmission device is fixed with the bearing shaft and drives the bearing shaft to rotate, and the outer side of the bearing shaft fixing and transmission device is fixed with the reaction container; a circuit is arranged in the bearing shaft; a working electrode is a needle-shaped tungsten electrode, each treatment section is provided with three annular belts, each annular belt comprises 12 electrodes, and the interval between every two adjacent electrodes is 30 degrees; the number of the turbulent flow fan blades is 12, and the turbulent flow fan blades are distributed at 30 degrees. According to the invention, to-be-treated water containing chlorinated organic matters and gas (Ar / O2 mixed gas) are pretreated into a gas-liquid mixture, a high-pressure reaction place is formed by virtue of a variable-diameter container, and high-temperature and high-energy plasmas are generated in a rotating electrode pulse type discharge manner, so that the chlorinated organic matters are efficiently pyrolyzed.

The present invention provides a porous silicon-based cathode electron source and a preparation method and preparation equipment thereof, and relates to the technical field of cathode electron emission sources. The preparation method of the porous silicon-based cathode electron source comprises: preparing a porous silicon layer by an anodic oxidation method; in a first electrolyte, performing a cathode reduction treatment on the porous silicon layer so that specific ions in the first electrolyte passivate the porous silicon layer, which is beneficial to the oxidation of the porous silicon layer; electrochemically oxidizing the passivated porous silicon layer so that the passivated porous silicon layer is uniformly and fully oxidized; and thermally annealing the porous silicon layer after the electrochemical oxidation treatment. The preparation method first uses cathode reduction to passivate the porous silicon layer before the electrochemical oxidation treatment, which helps the electrochemical oxidation to oxidize the porous silicon layer more completely and fully, and reduces the random scattering effect of electrons in the porous silicon layer caused by defect states during the tunneling acceleration process, thereby greatly improving the repeatability and stability of the device current and emission current.

The invention relates to the technical field of fuels, and provides an aviation composite fuel and a preparation method thereof, and the aviation composite fuel comprises carbamide, glycerol, methanol, a surfactant and a kerosene fuel. The structure of the combustion chamber does not need to be changed, and the aviation composite fuel is improved, so that the nitrogen and carbon emission of combustion is effectively reduced.

This invention relates to a low-temperature oxidative roasting pretreatment method and supporting equipment for gold-bearing pyrite. The method includes: raw material preparation; humidification and cooling; low-temperature oxygen-enriched roasting; and roasted sand collection. The supporting equipment includes a batching bin, the bin outlet of which is connected to the feed hopper inlet via an elevator, and the feed hopper outlet connected to the fluidized bed furnace inlet via a conveyor belt. A spraying device is mounted on the conveyor belt. Atomized temperature-regulating and water-replenishing device and a temperature sensor are installed in the upper and middle combustion spaces of the fluidized bed furnace. An online oxygen analyzer is installed on the flue gas duct at the top of the fluidized bed furnace, and is sequentially connected to a waste heat boiler, a cyclone dust collector, an electrostatic precipitator, and an acid production system. The air inlet at the bottom of the fluidized bed furnace is connected to a blower via an air duct. This invention achieves full oxidation of gold-bearing pyrite under low-temperature, oxygen-enriched, and low-gas-velocity conditions, resulting in loose and porous roasted sand and a significantly increased gold and silver exposure rate, providing important technical support for the comprehensive utilization of the valuable components of gold-bearing pyrite.

The invention discloses oxidation equipment for zinc oxide production and a use method thereof, and belongs to the technical field of zinc oxide production. Oxidation equipment for zinc oxide production comprises an oxidation seat fixedly arranged at the top of a kiln and communicated with the kiln, and further comprises an oxidation cavity formed in the oxidation seat, and a mixing mechanism used for mixing zinc steam and air is arranged in the oxidation cavity; the oxidation channel is formed in the oxidation base and communicates with the oxidation cavity, a cutting assembly used for cutting airflow is arranged in the oxidation channel, and the top of the oxidation channel communicates with an air supply pipe; an air inlet pipe is fixedly arranged on the air supply pipe, and the air inlet end of the air inlet pipe is connected with the fan; the zinc vapor contact oxidation air can be filtered, the zinc oxide production quality is improved, the zinc vapor and the air can be rapidly and fully contacted and oxidized, and the oxidation effect and the oxidation efficiency in the zinc oxide production process are effectively guaranteed.

The invention belongs to the field of aluminum alloy materials, and provides a method for preparing low-Mg waste aluminum material, wherein aluminum chips are put into a rotary kiln, and hot aluminum ash slag accounting for 50±5% of the weight of the aluminum chips is poured on the aluminum chips; the aluminum ash slag and the aluminum chips are evenly stirred, and during the stirring period, a stirrer is evenly added, and a stirring rake is continuously stirred, and the rotary kiln is tilted every 10-15 minutes, and the liquid aluminum in the aluminum ash slag is poured into a container; until there is no more liquid aluminum in the aluminum ash slag, and the liquid aluminum in the container solidifies to obtain low-Mg waste aluminum material. The ADC12 aluminum chip liquid prepared by the invention has a Mg content of ≤0.03%; the 356 aluminum chip liquid prepared by the invention has a Mg content of ≤0.05%; and can be used as a raw material for low-Mg cast aluminum alloy.

The invention belongs to the technical field of oxidation furnaces, and particularly relates to an oxidation furnace device for preparing copper oxide from regenerated copper powder and an oxidation process thereof.The oxidation furnace assembly comprises a furnace body, a first driving mechanism and an air inlet pipe, the first driving mechanism is used for driving the furnace body to rotate, and a plurality of stirring blades are spirally arranged on the inner wall of the furnace body; a heater is arranged in the furnace body, a valve is arranged on the side wall of the furnace body, one end of the air inlet pipe is communicated into the furnace body, the crusher assembly comprises a crushing bin, a rotor and an impact part, the rotor is rotatably arranged in a crushing cavity, the impact part is arranged on the rotor and used for colliding with materials, and a collision plate is arranged on one side of the rotor and used for colliding with the materials. By adopting the oxidation furnace device and the oxidation process steps, the oxidation time is reduced from 8 hours to 4 hours, the treatment energy consumption is reduced from 800 kWh to 400 kWh, and the energy consumption is reduced by about 50%; and the method has the advantages of low energy consumption, high oxidation efficiency and high copper oxide purity.

The invention relates to the technical field of metallurgy, in particular to a method for producing all-vanadium-titanium pellets through a belt type roasting machine. The method comprises the steps that S1, vanadium titano-magnetite is dried and finely ground; s2, circularly feeding the rolled vanadium titano-magnetite offcut, adding bentonite, a flux and fly ash, and uniformly mixing; s3, pelletizing: screening out qualified green pellets with the particle size of 8-16 mm, distributing the materials, transporting the materials to a roasting system, and returning the unqualified green pellets to a pelletizing chamber to participate in pelletizing again; s4, the green pellets are sequentially subjected to a forced air drying section, an air draft drying section, a preheating section, a roasting section, a soaking section, a first cooling section and a second cooling section on a belt type roasting machine, and pellets are formed after cooling; pellet production is met through high-pressure rolling and grinding and proper circulation volume setting, and in the production process, the performance of produced pellets is excellent by adding bentonite in a reasonable proportion, controlling pelletizing parameters and meanwhile through a reasonable roasting system.

The invention relates to the technical field of environmental engineering, and discloses a large-scale coal-fired power plant flue gas desulfurization control system, which comprises a monitoring module, an evaluation module, a cleaning module and a manual intervention module, and is characterized in that the monitoring module is used for monitoring parameters in equipment and sending the monitored parameters to the evaluation module through a network; the evaluation module evaluates the cleaning state according to the received parameter data, a cleaning signal is sent to the cleaning module through a network when the cleaning state is evaluated to be the condition that cleaning is needed, and the cleaning module receives the cleaning signal to clean the equipment and calculates the internal cleaning effect after cleaning; whether manual intervention is needed or not is judged according to the cleaning effect, an intervention signal is sent to the manual intervention module for manual deep cleaning when it is judged that manual intervention is needed, the working environment of the equipment is comprehensively analyzed for dynamic cleaning, the service life of the equipment is prolonged, the working environment in the equipment is improved, and manual labor is saved.

The present invention discloses a method for preparing a metal oxide film and a high-performance perovskite solar cell. The method uses a related metal single substance film to directly form an oxide film by rapid heat treatment oxidation. The oxide film can be applied to a perovskite solar cell; specifically, by using rapid heat treatment to completely oxidize the metal single substance to form an oxide electron transport layer, thereby forming a high-quality and can grow on a variety of substrates. The method is also particularly suitable for expanding in the direction of large-area devices, and using the transport layer to obtain a perovskite solar cell with improved photoelectric conversion efficiency and short-circuit current. The method of preparing a perovskite solar cell using the electron transport layer formed by the above-mentioned rapid heat treatment in the present invention is simple and effective, and has important practical value for preparing large-area, low-cost perovskite solar cells.

The invention relates to the technical field of roasting devices, in particular to a gasification filter residue roasting device which comprises a roasting furnace body, a feeding pipe is fixedly inserted into the upper end of the roasting furnace body, a discharging seat is fixedly mounted at the lower end of an inner cavity of the roasting furnace body, and a discharging pipe is fixedly inserted into the bottom of the discharging seat. The lower end of the discharging pipe downwards penetrates through the bottom of the roasting furnace body and extends to the outside, a Z-shaped chain bucket conveyor is installed near the roasting furnace body, a feeding port of the Z-shaped chain bucket conveyor is connected with a discharging port of the stock bin, and the side face of the roasting furnace body is connected with a cyclone separator through a pipeline; the gasification furnace has the beneficial effects that the output shaft of the variable frequency motor firstly drives the center shaft to rotate clockwise or anticlockwise, and the center shaft drives the material spreading mechanism to rotate clockwise or anticlockwise along the upper end of the furnace hearth, so that a material spreading push plate in the material spreading mechanism can uniformly spread and turn over gasification filter residues, and the gasification filter residues can be uniformly heated; and the roasting and oxidizing efficiency and effect of the gasified filter residues are improved.

The utility model relates to the technical field of zinc oxide preparation, concretely to a high temperature oxidation reaction unit for zinc oxide powder preparation, including combustion furnace, oxidizing furnace, connecting pipe, heater and heating mechanism, both ends of connecting pipe are fixedly connected with the surface of combustion furnace and oxidizing furnace respectively, heater fixed mounting is in the inner wall of combustion furnace, and heating mechanism sets up in the inner wall of combustion furnace, heating mechanism includes crucible, and the inner wall of combustion furnace is fixedly installed with the furnace cover, and the surface fixed mounting of furnace cover has motor no.

The invention belongs to the technical field of metal processing, and particularly relates to a retreatment method and application of a pickling filter cake. According to the acid pickling filter cake retreatment method, the acid pickling filter cake comprises an acid filter cake, the acid filter cake enters a buffer bin through a dryer, the buffer bin conveys the acid filter cake to a bucket elevator conveyor through an inclined spiral conveyor 1, the bucket elevator conveyor lifts materials to the roasting top end of a multi-section roasting furnace, and the materials enter the multi-section roasting furnace through double feeding turning plates to be roasted. The roasted materials are cooled through a roller cooler and then conveyed to a product bin through an inclined screw conveyor 2; flue gas generated by the multi-section roasting furnace enters the cyclone dust collector to remove dust, the dedusted flue gas is deacidified through the three-stage washing deacidification tower, the deacidified flue gas enters the washing purification tower to be desulfurized, and the desulfurized flue gas is pumped by the induced draft fan to a chimney to be discharged. The invention further provides a pickling filter cake retreatment device applied to the pickling filter cake retreatment method. According to the invention, the retreatment efficiency and environmental protection property of the pickling filter cake are improved.

A low-lithium-nickel mixed NCMA quaternary cathode material precursor, with a chemical formula of Ni a Co b Mn c Al d OOH, the preparation method includes: preparing Ni, Co, Mn metal liquid, preparing a mixed solution of aluminate and sodium hydroxide, preparing a precipitant and a complexing agent; adding pure water, precipitant and complexing agent to the kettle to prepare a bottom liquid; keeping stirring, introducing protective gas, adding metal liquid, precipitant, mixed solution and complexing agent to the kettle for co-precipitation; overflow flows to the buffer tank, and the overflow slurry temperature is 45~55℃; ozone is introduced into the buffer tank, and the slurry is pumped back to the reactor after oxidation, and the reflux slurry temperature is 70~85℃; when the particle size grows to 3.0~4.0um, stop feeding the liquid; filter, wash and dry the co-precipitated product to obtain a NCMA quaternary positive electrode material precursor with low lithium nickel mixed arrangement. The present invention can avoid Ni 2+ With Li + The mixed arrangement has low energy consumption in preparation and controllable production cost, which is conducive to industrial production.

The utility model discloses oxidation auxiliary equipment for atmospheric sampling, including sampling instrument body and mixing tube, the side wall of sampling instrument body is detachably equipped with drying cylinder and porous glass plate tube, the lower part of the side wall of sampling instrument body is fixedly connected with mounting plate, and the mixing tube is fixedly installed on the upper surface of mounting plate. The plateau oxygen generator is controlled to prepare oxygen, the oxygen is input into the oxygen inlet pipe through the oxygen supply pipe, meanwhile, the sampling instrument body begins to suck air to drive external air to enter the oxygen inlet pipe to be preliminarily mixed with the oxygen, then the air is sucked into a pipe body cavity to be mixed again by making contact with a spiral strip, and finally the air enters a mixing cavity to be in contact with a rotating stirring plate; according to the present invention, the oxygen generation mixing device is arranged, such that the oxidation reaction can be completely performed, and the accuracy of the sample data and the sampling efficiency can be improved, such that the oxygen generation mixing device is adopted so as to achieve the complete sampling, and the obtained gas can enter the sampling instrument body through the porous glass plate tube and the drying cylinder;

The invention discloses a method for improving micro powder on the surface of a lithium-rich manganese-based binary precursor and the obtained precursor. The method for improving the micro powder on the surface of the lithium-rich manganese-based binary precursor comprises the following steps: preparing a precipitant solution, a complexing agent solution, a nickel-manganese mixed salt solution containing hydrogen peroxide and a reaction base solution containing a precipitant and a complexing agent; and injecting the precipitant solution, the complexing agent solution and the nickel-manganese mixed salt solution containing hydrogen peroxide into a reaction base solution containing a precipitant and a complexing agent in a parallel flow manner, carrying out a co-precipitation reaction, stopping feeding after the particle size reaches a target particle size, and washing and drying to obtain the lithium-rich manganese-based binary precursor. The hydrogen peroxide is uniformly mixed with the nickel-manganese mixed salt solution in advance based on a coprecipitation method, so that the hydrogen peroxide can be in full contact with the nickel-manganese mixed salt solution in a reaction system, the oxidation is full, the reaction stability is ensured, and finally the lithium-rich manganese-based binary precursor with high specific surface area and less micro powder is obtained.

The invention discloses a graphene oxidation treatment device, and belongs to the technical field of graphene preparation. The graphene oxidation treatment device comprises an oxidation tank, the bottom of the oxidation tank is communicated with a liquid outlet with an electric control valve, the graphene oxidation treatment device further comprises a material mixing assembly used for uniformly stirring an oxidizing agent and graphite powder in the oxidation tank, and the material mixing assembly is in transmission connection with the inner bottom of the oxidation tank through a stirring shaft; the discharging assembly is used for filling an oxidizing agent, and the discharging assembly is communicated with the top of the oxidizing tank through a discharging cone. According to the invention, the contact area of the material mixing assembly and oxidized mixed slurry is increased, the stirring efficiency is improved, and graphite powder and an oxidizing agent are fully reacted, so that the oxidation effect is enhanced, and the oxidation efficiency is improved; the maximum collection amount is ensured; the oxidizing agent is added in time, so that oxidation reaction is sufficient; therefore, smooth discharging is guaranteed, and the discharging nozzle and the discharging hole can be effectively prevented from being blocked.

The present application provides a kind of pulverized coal, oxidant combination formula burner, belong to coal chemical technology field, comprising: body and protective shell;Oxidant is transported by the oxidant flow channel in the body, pulverized coal is transported by pulverized coal flow channel, the body is internally provided with oxidant outlet pipe and pulverized coal outlet pipe, the protective shell is sleeved in the head of the body, the oxidant outlet pipe and the pulverized coal outlet pipe respectively from the head of the protective shell, the pulverized coal, oxidant combination formula burner provided by the present application, oxidant and pulverized coal are mixed outside the protective shell, can effectively prevent the backflow oxidation reaction of near burner, prolongs the trouble-free operation cycle of burner.

The application provides a method for treating TPU waste by using molten salt, and belongs to the field of solid waste treatment.The method can solve the problems of traditional TPU waste treatment methods, such as easy generation of harmful gas, high cost and low safety.The method comprises the following steps: S1, drying a certain amount of CaCO3 and Ca(OH)2 at a certain temperature for a certain time, removing the excess water, fully mixing the dried CaCO3 and Ca(OH)2 at a certain proportion, and placing the mixture in a reaction kettle; S2, heating the reaction kettle to a certain temperature and keeping the temperature for a certain time to melt the CaCO3-Ca(OH)2 system; S3, adding TPU waste with a certain mass ratio of the melted CaCO3-Ca(OH)2 system into the reaction kettle to react, and forming waste salt after reacting for a certain time; S4, treating the waste salt after the reaction kettle discharges the waste salt to obtain a residue sample, weighing the residue sample to obtain a degradation rate, characterizing the composition and content of the waste salt sample, and determining the content of nitrate in the waste salt.The method is mainly used for treating TPU waste.

The invention relates to a method for smelting high-strength cold-formed steel for an automobile structure from vanadium-containing molten iron. The method comprises the following steps of desulfurization, vanadium extraction and steelmaking, converter steelmaking, LF refining, RH refining furnace refining and continuous casting. The alloy comprises the following smelting components in percentage by mass: 0.05 to 0.08 percent of C, 0.10 to 0.20 percent of Si, 1.75 to 1.90 percent of Mn, less than or equal to 0.012 percent of P, less than or equal to 0.006 percent of S, 0.050 to 0.060 percent of Nb, 0.090 to 0.110 percent of Ti, less than or equal to 0.30 percent of Cu, less than or equal to 0.30 percent of Cr, less than or equal to 0.30 percent of Ni, 0.010 to 0.020 percent of Mo, 0.020 to 0.050 percent of ALs, less than or equal to 0.0035 percent of [N] and the balance of iron and inevitable elements. According to the invention, the product with high precision, high quality and good surface quality can be manufactured, and the product has high plasticity and toughness.

The invention relates to the technical field of fluidized bed furnace operation, and discloses a method for prolonging the service life of a fluidized bed furnace during operation, which comprises the following steps: controlling the water content of a furnace charge to be 9-10%; the content of copper in the furnace charge is controlled to be 0.9% or below, and the content of lead in the furnace charge is controlled to be 4% or below or 6% or below; controlling the roasting temperature; the pressure in the furnace is controlled between 1.2 m and 1.4 m or between 1.3 m and 1.4 m; controlling the oxygen content in the furnace; the temperature in the furnace is adjusted through two groups of water jackets, the furnace is used for a 48m < 2 > fluidized bed furnace when the lead content is below 4%, and the furnace is used for a 16m < 2 > fluidized bed furnace when the lead content is below 6%. By accurately controlling the moisture and metal content of the charging material, the roasting temperature, the pressure in the furnace and the oxygen content and optimizing a water jacket system, scaling and corrosion in the furnace are reduced, the material reaction efficiency is improved, the equipment operation condition is stabilized, and the temperature in the furnace is uniformly distributed, so that the service life of the fluidized bed furnace is remarkably prolonged, the maintenance requirement is reduced, and the production cost is reduced. And the operation period and the stability of the whole equipment are improved.

The invention belongs to the technical field of crystal pulling process equipment, particularly relates to a stirring mechanism matched with crystal pulling process production, and aims to solve the problems that in the crystal pulling production process, filtering equipment needs to sufficiently and slowly oxidize volatile substances to prevent the volatile substances from being burnt and exploded when making contact with outside air, but the volatile substances filtered out in an ash bin are slowly oxidized, and the production efficiency is low. According to the technical scheme, the air cylinder fixing device comprises an air cylinder fixing barrel, an air cylinder is fixedly installed in the air cylinder fixing barrel through a plurality of screws, a cylinder rod connector is fixedly arranged at the end of an air cylinder rod, and a rotating arm is arranged below the air cylinder. According to the invention, inflammables in the ash bin can be fully oxidized, the danger of deflagration is prevented, the oxidation speed is accelerated, the preparation time of the process is shortened, and the production safety and efficiency are improved; the double-rocker mechanism is matched with the upper ratchet mechanism and the lower ratchet mechanism, one ratchet mechanism is responsible for unidirectional rotation, and the other ratchet mechanism is responsible for preventing the cantilever from being brought back when the air cylinder retracts, so that unnecessary reverse rotation is avoided, and the stirring stability and controllability are improved.