1069results about "Charge treatment type" patented technology

The invention provides a synchronous bonding method for metal matrix composite material sintering assisted by pulsed electric field and an ultrasonic field and a device thereof. The invention discloses a method for connecting magnesium (or copper) matrix composite material with stainless steel while sintering, which is assisted by pulsed electric field and ultrasonic field, and a device for simultaneously sintering metal matrix composite material. The device of the method comprises an airtight heating furnace, a pulse current loading system, an ultrasonic load applying system, a pressure and lifting system, a sealed insulating pipe and other auxiliary devices. The remarkable advantage of the invention is that the sintering of the metal matrix composite material and the joining of the different materials are carried out simultaneously; Pulse current flowing through the experimental material induces interface resistance heat plasma spark heat sintering and bonding interface heating and cooling speed fast reducing external radiant heat reducing residual stress of the joint. Using the coupling function of pulsed electric field- ultrasonic field-pressure field, breaking the oxide film on the surface of reinforcing phase, sintering under atmospheric conditions, reducing the activation energy of atomic diffusion, promoting the interfacial metallurgical reaction, controlling the particle morphology and size, refining the interfacial grains and improving the quality stability of joints are conducive to the preparation of metal matrix composite/alloy joints with high comprehensive properties.

A multi-stage intensifying auxiliary sintering type ignition holding furnace comprises a sintering machine (1), an ignition device (2) and an auxiliary combustion device (3), wherein the sintering machine (1) has a trolley (1); the ignition device (2) and the auxiliary combustion device (3) are orderly arranged on the trolley (1); the auxiliary combustion device (3) has a hot air device (4), a blow-injection device (5) and an auxiliary combustion cover (6); the hot air device (4) has a hot air pipeline (401); and the blow-injection device (5) has a fuel gas total pipe (501), a fuel gas branch pipe (502), a blow-injection pipe (503) and a rack (504). The multi-stage intensifying auxiliary sintering type ignition holding furnace can replace coke by partial fuel gas and hot smoke and achieves sintering bed segregation coke distribution effect via phase conversion; blow-injection device adjustability and freedom can be enhanced; multi-procedure multi-medium coupling blow-injection can be achieved; and the multi-stage intensifying auxiliary sintering type ignition holding furnace has great safety performance and high sintering quality.

The invention provides an oscillating hot press sintering furnace and relates to the field of high-performance ceramic and powder metallurgy material preparation, in particular to equipment adopting the hot press sintering method. The oscillating hot press sintering furnace comprises a furnace body and a hydraulic mechanism. An upper water cooling pressure head, an upper graphite pressure head, a lower water cooling pressure head and a lower graphite pressure head are arranged inside the furnace body. The hydraulic mechanism comprises an upper oil press and a lower oil press. The upper oil press is connected with the upper water cooling pressure head. The lower oil press is connected with the lower water cooling pressure head. The top of the upper water cooling pressure head and the bottom of the lower water cooling pressure head are provided with electromagnetic resonance pressure applying devices correspondingly. The electromagnetic resonance pressure applying devices can adjust the vibration frequency, vibration amplitude and pressure while hot press sintering is conducted. According to the oscillating hot press sintering furnace provided by the invention, high-frequency vibration amplitude/pressure can be achieved through the bidirectional pressurizing mode, the sintering time is shortened, energy consumption is reduced, and the compactness of a product is more uniform; and in addition, system faults can be found in time, and safe production is guaranteed.

The invention relates to a connection-in-series flash furnace. The connection-in-series flash furnace comprises an upper reaction body (5), a lower reaction body (1), and a connecting passage (7) through which the upper reaction body (5) and the lower reaction body (1) are connected, wherein the upper reaction body (5) is positioned at the upper part of the lower reaction body (1), so that a connection-in-series structure is formed; one or more molten pools (2) are arranged at the lower part of the lower reaction body (1); the flash furnace further comprises a lifting flue (3) through which flue gas is exhausted, the lifting flue (3) communicates with the lower reaction body (1) through the molten pools (2), and a slag-off outlet is formed in each of the molten pools (2). The connection-in-series flash furnace disclosed by the invention provides heat and reducing atmosphere for the lower reaction body through the upper reaction body, so that the purpose that mineral fines of metal oxidized ore are rapidly reduced and melted through the lower reaction body is achieved.

The invention provides a electrical smelting furnace for magnesia fault monitoring method based on a multi-manifold semi-supervised local-overall situation. The method comprises the steps of acquiring an original data set X during a smelting process of a electrical smelting furnace for magnesia, building a process monitoring model based on multi-manifold semi-supervised local-overall situation maintaining according to the original data set of the smelting process of the electrical smelting furnace for magnesia, acquiring test data x0 during the smelting process of the electrical smelting furnace for magnesia in real time, and carrying out fault type diagnosis on the test data x0 by adopting the process monitoring model based on multi-manifold semi-supervised local-overall situation maintaining. The method provided by the invention takes local and overall structures of data into consideration at the same time, and considers local diversity information among homogeneous data in order to prevent the occurrence of local overfitting, finally builds an optimal object function for multi-manifold semi-supervised fault diagnosis, and has a favorable monitoring effect.

The invention relates to a sagger for calcining a battery material and a preparation method thereof, and belongs to the technical field of lithium batteries. The sagger comprises the following raw materials in parts by weight: 10-50 parts of cordierite with a particle size of 2 to 1, 10-40 parts of cordierite with a particle size of 1 to 0, 1-20 parts of 200-mesh cordierite fine powder, 1-25 parts of 325-mesh fused magnesia-alumina spinel fine powder, 1-5 parts of sintering-promoting micro powder, 1-30 part of clay and 0.1-2 parts of an organic binding agent. The sagger uses the sintering-promoting micro powder, the sintering-promoting micro powder comprises of a plurality of kinds of lithium fine powder, and has low melting point and small thermal expansion coefficient so as to reduce the firing temperature of the saggar; and a roller kiln is used for firing, after forming, the saggar is spread out and put into the roller kiln for sintering, after the firing, the bottom flatness effect of the sagger is better than that of the sagger which is sintered by vertically placed in a shuttle kiln, and a fully automated assembly line production mode of a user can be met.

A traveling hearth for producing reduced metal by charging and stacking a raw material containing a metal-containing material and a solid-reducing material on a horizontally moving hearth, arranged for disposing a solid-reducing material layer on the hearth, forming concave portions at the solid-reducing material surface, stacking the raw material on the surface of the solid-reducing material layer, reducing the raw material by at least once heating and melting the material on the hearth to separate metal and gangue and ash ingredients, and discharging metal from the hearth.

The invention provides an online detection and control system for flame combustion uniformity in a sintering ignition furnace. The system comprises a dust removal and blowing system, a high-temperature infrared thermal imager, a swing system and burners; the swing system is arranged above a furnace charge, the high-temperature infrared thermal imager is installed on the swing system, the dust removal and blowing system is installed in front of and above the high-temperature infrared thermal imager, and the high-temperature infrared thermal imager is used for detecting temperature data and transmitting the temperature data to an industrial control machine; the burners are uniformly installed inside the sintering ignition furnace, the burners are connected to an air pipeline and a coal gas pipeline through electric adjusting valves, and the electric adjusting valves are correspondingly connected to the industrial control machine through power lines; and the industrial control machine adjusts the internal specific temperature of the ignition furnace by adjusting the coal gas flow and the air flow through the electric adjusting valves. According to the system, the problem that the adjustment cannot be carried out in a targeted mode is overcome, the flame combustion uniformity can be timely adjusted on line, the necessary temperature of a sintered material surface is ensured, the sintering and ignition energy consumption is reduced, the surface quality of a sintered ore is improved, and the productivity of the sintered ore is improved.

The invention relates to a technological method and system for driving a main exhaust fan by using a vertical cold kiln to recover waste heat of sintered ore. The hot sintered ore is subjected to heat exchange with cold air in the vertical cold kiln, waste gas is conveyed to a waste heat boiler after being subjected to dedusting, and generated superheated steam is conveyed to a steam turbine; and the steam turbine directly drives the sintering main exhaust fan to operate through a variable-speed clutch and a synchronous motor. By the adoption of the vertical cold kiln of a novel structure, the recovery rate of the waste heat of the sintered ore can be increased to the maximum extent; complementation between electricity generation of the steam turbine and electric energy of a power grid is achieved through the synchronous motor, and normal operation of the sintering main exhaust fan is guaranteed; and the complete sintering plant energy utilization technological system is composed of the vertical cold kiln, the waste heat boiler, the steam turbine and the sintering main exhaust fan, the steam turbine directly provides power for the main exhaust fan, electricity obtained from the power grid is reduced, secondary efficiency loss occurring due to the fact that in the conventional technique, when electricity is generated by the steam turbine and incorporated into the power grid and the sintering main exhaust fan obtains electricity from the power grid, mechanical energy is converted into electric energy and the electric energy is reconverted into the mechanical energy can be avoided, and great significance is brought to energy saving and value creating.

The invention relates to a sintered mixture preparation method, a sintered mixture distribution apparatus and a sintered mixture distribution method, wherein the raw materials of the sintered mixturecomprise iron ore powder, coke powder, return ore, quicklime and limestone. The sintered mixture preparation method comprises: placing iron ore powder, quicklime, return ore with a particle size of less than 3 mm after wetting, coke powder with a particle size of less than 3 mm, limestone and water to a primary mixer, and uniformly mixing to obtain a primary mixture; and placing the primary mixture, return ore with a particle size of 3-5 mm after wetting, coke powder with a particle size of more than 3 mm, limestone with a particle size of greater than 3 mm and water to a secondary intensive mixer, and uniformly mixing to prepare the sintered mixture. The sintered mixture distribution method comprises: distributing the sintered mixture onto a sintering machine in layers through the sintered mixture distribution apparatus comprising three sets of multi-roller material distributors, wherein the particle sizes of the layers are sequentially reduced from bottom to top, the particle size ofthe first layer is more than 8 mm, the particle size of the second layer is 5-8 mm, the particle size of the third layer is 3-5 mm, and the particle size of the uppermost layer is less than 3 mm. According to the present invention, the particle size ratio of the sintered mixture is improved, the precise segregation multi-layer material distribution is achieved, and the gas permeability and the sintering utilization coefficient of the sintered mixture are improved.

The invention discloses a system for combustion support of sintering flue gas, dioxin decomposing, desulfurization, denitrification and residual heat recovery. The system comprises a high-temperature combustion-supporting fluidized bed reactor, a separator, a sintering flue gas heat exchanger, a denitrification device and a desulfurization device, wherein the high-temperature combustion-supporting fluidized bed reactor and the separator communicate with each other; a temperature regulation sintering flue gas inlet, a solid fuel inlet and a combustion-supporting sintering flue gas inlet are sequentially formed in the high-temperature combustion-supporting fluidized bed from top to bottom; the sintering flue gas heat exchanger communicates with the dust removal gas outlet of the separator, and comprises a low-temperature sintering flue gas inlet and a high-temperature sintering flue gas outlet; the high-temperature sintering flue gas outlet communicates with the combustion-supporting sintering flue gas inlet and the temperature regulation sintering flue gas inlet separately through a high-temperature sintering flue gas pipe; the denitrification device is arranged on a pipeline communicating the high-temperature combustion-supporting fluidized bed reactor and the separator; and the desulfurization device communicates with the sintering flue gas heat exchanger. Through the adoption of the system, the integration of temperature rise of sintering flue gas, dioxin decomposing, denitrification, desulfurization and residual heat recovery is realized, so that the overall heat availability of the system is improved, one-time investment is small, and operating cost is low.

The invention relates to a nuclear flexible manifold embedding electric smelting magnesium furnace fault monitoring method. The method comprises the steps that various kinds of fault data and normal data are collected; offline modeling is carried out, a KICA monitor model is acquired according to the collected data, and a KFME fault diagnosis model is trained; online monitoring is carried out, the KICA monitor model is utilized for carrying out real-time online monitoring, and process data are collected; if faults are monitored, a KFME monitor model is used for carrying out fault recognition; if faults are recognized, a one-time fault monitoring process is finished; and if no fault is recognized, non-diagnosed fault data are analyzed and marked, and the step of training the KFME fault diagnosis model is executed through jump. By means of the method, a small quantity of marked data and a large quantity of non-marked data are utilized for building a process monitoring model, the model is more accurate, data dimension reduction and original data information retention can be achieved well, the accuracy and antijamming capability of the fault diagnosis model are improved, and unknown faults are monitored.

A process and apparatus for supplying solid feed materials for a direct smelting process to solids injection lances of a direct smelting vessel is disclosed. The feed materials supply apparatus includes a supply line (L) for conveying iron-containing material and solid carbonaceous material under pressure to solids injection lances (7), and the supply line includes a main feeder line section (15) and a plurality of branch line sections (17) extending from the main feeder line section. Each branch line section is connected to one solids injection lance for supplying iron-containing material and carbonaceous material to that lance. The apparatus further includes an assembly for dispensing iron-containing material under pressure into the main feeder line section of the supply line and an assembly for dispensing carbonaceous material under pressure into the main feeder line section of the supply line.

The invention discloses a neodymium iron boron vacuum sintering furnace which comprises a furnace body, a vacuum pump, a sweeping device, a cooling device, a heating device and a containing device. Abaffle is transversely arranged in the furnace body and divides the interior of the furnace body into two spaces including a sintering cavity and a cooling cavity, the sweeping device and the heatingdevice are both arranged in the sintering cavity, the cooling device is arranged in the cooling cavity, the containing device is connected to the inner wall of the right side of the furnace body in sliding and clamped modes, a driving device is arranged on the containing device, the sintering cavity and the cooling cavity are each provided with a furnace cover, the furnace covers are connected tothe furnace body in a pivoted mode, and the vacuum pump is connected with the sintering cavity and the cooling cavity through air pipes. According to the neodymium iron boron vacuum sintering furnace,neodymium iron boron can be sintered in the sintering cavity and cooled in the cooling cavity, cooling and sintering are carried out separately, a large amount of energy is saved, the working efficiency of sintering and cooling procedures can be improved, neodymium iron boron residual substances in the sintering cavity can be automatically swept through the sweeping device, and a large amount oflabor cost is saved.

The invention discloses a method for preparing CuMn12Ni alloy by adopting vacuum induction melting. The method comprises the following steps that burdening is carried out, specifically, an electrolytic copper plate, an electrolytic manganese sheet and a CuNi3O intermediate alloy material are respectively weighed; charging is carried out, specifically, the prepared alloy material is charged into acrucible, a deflation valve is closed; vacuumizing is carried out, specifically, turning on a mechanical pump is carried out, a low-vacuum baffle valve is opened for vacuumizing, turning on a roots pump is carried out when the vacuum pressure p in a furnace is less than or equal to 0.08 MPa; smelting is carried out, specifically, when the vacuum degree p is smaller than or equal to 10 Pa, heatingis carried out, the heating power is increased to 60 KW, when the raw material in the crucible begins to be molten, the power is reduced to be lower than 20 KW, an argon filling valve is opened, whenthe pressure in the furnace is increased to about 0.08 Mpa, the argon filling valve is closed, the power is increased to 65 KW, refining is carried out for 2 min; casting is carried out, specifically,the power is reduced to 40KW +/-5KW, keeping for 0.2 minute is carried out, casting is started, the casting time is less than or equal to 2min; and discharging is carried out, specifically, after casting is completed, heating is stopped, and after cooling is carried out for 30 min, discharging is carried out. According to the method for preparing the CuMn12Ni alloy by adopting vacuum induction melting, the technological process is reasonable in design, and the prepared CuMn12Ni alloy is low in gas content, uniform in structure, free of segregation defects and suitable for large-scale popularization.

The invention discloses a smelting furnace. The smelting furnace comprises a smelting furnace body, a heat storage device, a coal powder-oxidant gas spray gun, a gas supply assembly, an air supply assembly and a smoke exhaust pipe assembly; a furnace hearth is defined in the smelting furnace body, the heat storage device comprises a first heat storage assembly and a second heat storage assembly, the first heat storage assembly and the second heat storage assembly each comprises a heat storage combustion chamber and a combustion nozzle which are connected with each other, and each heat storage combustion chamber communicates with the corresponding combustion nozzle through the furnace hearth; the coal powder-oxidant gas spray gun comprises a first spray gun assembly and a second spray gun assembly, the first spray gun assembly and the second spray gun assembly are arranged on the side walls of the smelting furnace body separately, the first spray gun assembly and the first heat storage assembly are distributed on the side wall of the smelting furnace body in a staggered manner, and the second spray gun assembly and the second heat storage assembly are distributed on the side wall of the smelting furnace body in a staggered manner; and the gas supply assembly is connected with the combustion nozzle of the first heat storage assembly and the combustion nozzle of the second heat storage assembly separately, the air supply assembly is connected with the heat storage combustion chamber of the first heat storage assembly and the heat storage combustion chamber of the second heat storage assembly separately, and the smoke exhaust pipe assembly communicates with the heat storage combustion chamber of the first heat storage assembly and the heat storage combustion chamber of the second heat storage assembly separately.

The invention belongs to the technical field of preparation of structural ceramic, and relates to a micro-wave-regular sintering method of a structural ceramic. The method includes steps of analyzing dielectric property of a structural ceramic along with the temperature changing rule, applying an electromagnetic field distribution simulation result to temperature field simulation software to simulate change status of dielectric constant and loss tangent of Y-TZP and ZTA material in microwave sintering process along with the temperature field on the basis of study of a three-dimensional electromagnetic simulation technique on electromagnetic field distribution of the structural ceramic in the microwave sintering cavity; testing change of the dielectric properties of the Y-TZP and ZTA along with the sintering temperature, contrasting the actual measured data with the simulated data; analyzing the difference, reason and influence factors; finding out the critical temperature of Y-TZP and ZTA with sharply increased dielectric loss in sintering process; then performing micro-wave-regular sintering on the prepared Y-TZP and ZTA samples. The micro-wave-regular sintering method is simple in technique, convenient to operate, scientific in principle, uniform in material heating, short in heating time, few in energy consumption, and convenient to perform the industrial production of the structural ceramic.

The invention relates to a silicon carbide saggar for calcining a lithium battery positive electrode material, and a production method thereof. The production method comprises the following steps: using 40-55 wt% of alumina powder, 30-40 wt% of zircon and 10-20 wt% of Suzhou clay as a mixture, adding vanadium pentoxide accounting for 4-6 wt% of the mixture and water accounting for 5-8 wt% of the mixture, and performing uniform mixing to obtain a working layer mixture; using 30-45 wt% of talcum, 10-20 wt% of alumina powder and 40-50 wt% of Suzhou clay as a matrix material, adding water, performing ball milling, and drying and crushing the obtained matrix material solution to obtain a matrix powder; using 60-75 wt% of silicon carbide aggregates and 25-40 wt% of the matrix powder as raw materials, adding a binder accounting for 5-10 wt% of the raw materials, and performing uniform mixing and molding; distributing a layer of the working layer mixture on the bottom working surface of a molded saggar matrix, and performing machine pressing and drying; and performing heat insulation at 1370-1400 DEG C for 8-10 h to produce the silicon carbide saggar for calcining a lithium battery positive electrode material. The production method has the advantages of low cost, energy saving and environmental protection, and the product produced in the invention has the advantages of good thermal shock stability, excellent erosion resistance and long life.

The invention provides a vacuum hot-pressing sintering furnace. The furnace comprises a furnace body, a hydraulic mechanism and an induction heating mechanism, wherein an upper water cooling pressure head and a lower water cooling pressure head are arranged in the furnace body, and the upper water cooling pressure head and the lower water cooling pressure head are located at two ends of the furnace body and are oppositely arranged; the hydraulic mechanism comprises an upper hydraulic cylinder and a lower hydraulic cylinder; the induction heating mechanism comprises a flange, an induction coil and a hot-pressing mould; the induction coil is mounted on the flange and the flange is detachably mounted in the furnace body, the induction coil winds the outer side of the hot-pressing mould, and the upper water cooling pressure head and the lower water cooling pressure head clamp the hot-pressing mould. By detachably mounting the induction coil in the furnace body, induction coils of different dimension specifications and hot-pressing moulds with different dimension specifications can be replaced according to different using demands, so that the range of the temperature region of the vacuum hot-pressing sintering furnace provided by the invention can be adjusted to be suitable for machining of samples with different dimensions, and the application range is expanded, and the vacuum hot-pressing sintering furnace is conveniently used by users.

The invention relates to a roller type drying and sintering or roasting device which comprises a kiln body and a drive device. A drying roller comprises a kiln body outer shell, a net-shaped outer sleeve and a net-shaped inner sleeve from outside to inside in the radial direction of the drying roller. The inner wall of the kiln body outer shell and the outer wall of the net-shaped outer sleeve are connected through a plurality of sliding drive shifting blocks evenly distributed in the circumferential direction, and rotary drive is carried out. A powder chamber is formed by a space between the kiln body outer shell and the net-shaped outer sleeve. The net-shaped outer sleeve and the net-shaped inner sleeve are connected through a plurality of net-shaped partitions spirally extending in the length direction of the kiln body. A space between the net-shaped outer sleeve and the net-shaped inner sleeve is divided by the partitions into a plurality of drying or roasting (sintering) material chambers distributed in the circumferential direction. An inner sleeve air chamber is formed by a space in the inner sleeve. The device has the beneficial effects that material drying is even, thorough and fast; the manmade pellet (spherical block) damage rate is low; the device investment is reduced; the productivity is greatly improved; and energy saving and emission reduction are realized.

The invention discloses a secondary metal smelting furnace and a smelting device thereof, and particularly relates to the technical field of metal smelting. The smelting furnace comprises a smelting crucible, a heat exchange pipe and a heat preservation water tank. A combustion chamber and a smelting chamber are included in a furnace body. The heat exchange pipeline is annularly arranged on the peripheral wall of the combustion chamber. The heat preservation water tank is located below the combustion chamber in the furnace body so as to absorb heat of the side, away from the smelting crucible,of the combustion chamber. The heat heats a water solution on the upper layer of the heat preservation water tank in a heat conduction manner, the heated water solution is used for enabling heat around the smelting crucible not to prone to being lost through the heat exchange pipe, the metal smelting process is more stable, and the smelting effect is more excellent.

Disclosed are a calcining technology and a calcining device for producing high-brightness and low-hardness talc by utilizing black talc. The calcining technology comprises the following steps: smashing and milling to enable grain fineness of a black talc raw material to be 150 to 8000 meshes; feeding the milled black talc raw material into the calcining device for calcining, wherein calcining temperature is 200 to 850 DEG C, and calcining time is 2 to 8h; and introducing high-concentration and high-pressure oxygen in a calcining process to form an oxidizing atmosphere, wherein oxygen concentration is 30 to 80 percent, and oxygen pressure is 0.05 to 0.7 MPa. The calcining device comprises a feeding mechanism, a rotary kiln and a discharging mechanism; a rotary cylinder of the rotary kiln is horizontally arranged rotatably, and comprises a feeding section, a heating section and a discharging section; the feeding section and the feeding mechanism are connected, and the discharging section and the discharging mechanism are connected; the rotary kiln comprises a combustor and also comprises an oxygen support ring, wherein the combustor is used for heating to calcine the powdery black talc raw material in the heating section, and the oxygen supply ring sheathes the feeding section, and is provided with an oxygen inlet and an oxygen chamber; a plurality of oxygen supply hoods are arranged in the rotary cylinder; and an oxygen hole is formed in each oxygen supply hood, and is in gas communication with the oxygen supply ring. According to the calcining technology and the calcining device disclosed by the invention, lower temperature calcination is performed under the oxidizing atmosphere, so that the talc does not produce phase change and is high in brightness.

The invention relates to a support structure for a sintering process for large-size reaction sintered silicon carbide, and belongs to the technical field of preparation for reaction sintered silicon carbide. The support structure disclosed by the invention is composed of an upper graphite plate, a lower graphite plate and ceramic balls located between the two graphite plates, wherein rolling support is mainly realized through the ceramic balls arranged in sunken tables of the graphite plates. The change of the position of a support area can be realized through the rolling of the ceramic balls,and only the rolling friction force of the ceramic balls is stressed when the position of the support area is changed; the thermal expansion and cold shrinkage process of a blank is hardly restrainedand limited by the support area due to the extremely low rolling friction force of the ceramic balls, and the free expansion and shrinkage of the blank can be realized, so that the stress of the blank in a sintering process is greatly reduced, and the yield in a preparation process is increased.

The invention discloses a repairing material of a sagger for producing a lithium ion battery positive electrode material. The repairing material is prepared by drying and sintering repairing slurry, wherein the repairing slurry is prepared from the following components in percentage by mass: 30-50% of alumina powder, 20-30% of quartz powder, 3-5% of titanium dioxide, 5-15% of tungsten carbide powder, 2-5% of a sintering aid, 5-20% of a coalescing agent, 1-5% of a dispersing agent and 10-30% of a solvent. The invention further discloses a method for repairing the sagger for producing the positive electrode material of the lithium ion battery by utilizing the repairing material. By coating the inner wall of the sagger with the repairing material, the service life of the sagger can be remarkably prolonged, sagger slag introduction is reduced, the sagger cost is reduced, and the product quality is improved.

The invention discloses a side-blown submerged combustion molten pool smelting device with an oxygen-enriched air and pulverized coal blowing function. The side-blown submerged combustion molten pool smelting device comprises a smelting furnace, a pulverized coal conveying pipe, an air conveying pipe and a plurality of coal injection assemblies, wherein the pulverized coal conveying pipe is used for conveying pulverized coal; the air conveying pipe is used for conveying oxygen-enriched air; the air conveying pipe communicates with an air source; and the multiple coal injection assemblies are arranged on the two opposite side walls of the smelting furnace at intervals. Each coal injection assembly comprises a pulverized coal injection gun and an air spray gun which are arranged adjacently in a paired mode. Each pulverized coal injection gun communicates with the pulverized coal conveying pipe. Each air spray gun communicates with the air conveying pipe. Each coal injection assembly at least partially stretches into the smelting furnace. According to the side-blown submerged combustion molten pool smelting device with the oxygen-enriched air and pulverized coal blowing function, the pulverized coal can serve as fuel, and the side-blown submerged combustion molten pool smelting device has the advantages of being high in production efficiency, low in operation cost, broad in application range and the like.

The invention discloses a device for microwave sintering of ceramic particles by rotary garbage incineration fly ash and an operation method. The garbage incineration fly ash is mixed with pyrite sintering slag for pelletizing to enter a rotary furnace body with microwave coupling agent powder for microwave sintering; a rotary reaction furnace is inclined, so that the ceramic particles are heated by microwaves in rolling mixing; the sintered ceramic particle clinkers are separated from a microwave coupling agent; the separated microwave coupling agent serves as a raw material for recycling; the innovation increases the utilization rate of the microwave coupling agent; meanwhile, the device is simple in preparation process and full in energy utilization, solves the problem of generating a lot of harmful smoke needing to be purified in a traditional sintering technology, promotes the industrial process of incineration fly ash microwave sintering, and in particular, is suitable for the fly ash harmless treatment with sintering of the ceramic particles by the incineration fly ash as the purpose.

The invention discloses a furnace body at a rubber discharging section of a sintering furnace for a high-nickel ternary material of a lithium battery, and the sintering furnace. The furnace body at the rubber discharging section comprises a furnace chamber, wherein a stick is arranged in the furnace chamber and divides the furnace chamber into a kiln chamber and a heating chamber; a heating element is arranged in the heating chamber; a bottom air inlet is formed in the heating chamber; an air inlet circulating mechanism is arranged at one end of the furnace chamber; an air bellow is arranged at the other end of the furnace chamber; the air inlet circulating mechanism comprises an air inlet cylinder, a fan base and a circulating fan; the circulating fan is arranged on the upper part in thefan base; the air inlet cylinder faces outwards and communicates with the fan base; the fan base and the air bellow communicate with the heating chamber; and the air bellow is provided with an exhaustpipe, so that hot air can be ensured to cyclically flow in the furnace body, a rubber discharging effect is good, and the high-nickel ternary material is fully pre-sintered at the temperature of 250DEG C to 700 DEG C and under the uniform atmosphere. The sintering furnace comprises a furnace body at a preheating section, the furnace body at the rubber discharging section, a furnace body at a high-temperature section, a furnace body at a temperature-reducing section and a furnace body at a cooling section, wherein the fan base of the furnace body at the rubber discharging section communicateswith the furnace body at the temperature-reducing section through a hot air pipeline, so that the temperature of newly entered air of the furnace body at the rubber discharging section exceeds 200 DEG C.

The invention discloses a directional solidification smelting device and method for a refractory high-entropy alloy. The directional solidification smelting device comprises a quartz glass tube, a smelting crucible, an induction coil and a smelting power supply, wherein an alloy raw material fills the smelting crucible and is positioned inside the quartz glass tube; the induction coil is connectedwith the smelting power supply and sleeves the quartz glass tube for smelting the alloy raw material in the smelting crucible; the directional solidification smelting device further comprises a lifting device; and the induction coil is connected with the lifting device and is driven by the lifting device to ascend and descend along the quartz glass tube. The directional solidification smelting device and method for the refractory high-entropy alloy have the advantages that alloy ingots smelted are regular in molding, uniform in internal structure, and concentrated in defects, such as shrinkage cavity and shrinkage porosity.

The invention discloses multi-furnace combined type fusion casting equipment and a technology for producing high-cleanness magnesium or a high-cleanness magnesium alloy, and belongs to the technical field of metal smelting. The equipment adopts a plurality of smelting furnaces and mating crucibles for combined operation, and the smelting furnaces consist of a melting furnace, a purifying furnace and a heat preservation holding furnace; the melting furnace and the crucible of the melting furnace are used for melting magnesium or the magnesium alloy; a magnesium melt or a magnesium alloy melt is transferred to the purifying furnace and the crucible of the purifying furnace through an insulating pipeline, and penetrates through a screen mesh structure submerged in a molten flux and a flux layer, and occluded foreign substances in the magnesium melt or the magnesium alloy melt are removed cleanly; and the purified melt is transferred to the heat preservation holding furnace and the crucible of the heat preservation holding furnace through an insulating pipeline for subsequent operation. The magnesium melt or the magnesium alloy melt is purified thoroughly, the operation difficulty of an operation worker is lowered, continuous automatic production can be realized, the production efficiency is high, and the technology has lower pollution to the environment than a traditional technology.

The invention discloses an electric-field-assisted ceramic low temperature rapid sintering device. The rapid sintering device comprises a heating plate, a direct current power supply, an infrared camera and a data acquisition device, wherein the heating plate is used for placing and heating a sample, the two ends of the sample are respectively connected with an anode and a cathode of the direct current power supply; the infrared camera is arranged at a corresponding position of the heating plate, and the infrared camera is connected with the data acquisition device. The rapid sintering device disclosed by the invention has the advantages that heat energy is supplied to ceramic by virtue of the heating plate, and low temperature rapid sintering of a ceramic material is realized under the assistant action of a direct current electric field; and in-situ observation of temperature variation and linear contraction of the sample in each stage during flash sintering can be realized by virtue of the infrared camera and the data acquisition device, and energy consumption and requirement on equipment are effectively reduced.