547results about "Charge treatment type" patented technology

The invention provides a performance optimization and regulation method for a high-temperature sintering furnace, and belongs to the technical field of intelligent regulation, and the performance optimization and regulation method comprises the following steps: arranging sensors in each heating area of the high-temperature sintering furnace, and monitoring the heating areas in real time; constructing a heating area operation state database, comparing the collected real-time data with a preset sintering process parameter range, and analyzing to obtain a performance analysis set of each heating area; establishing a three-dimensional heat conduction model, simulating heat flow distribution of each heating area under different heating powers and temperature settings, determining a thermal coupling effect of each heating area in different stages, and determining a heat transfer coefficient between adjacent heating areas; and an initial strategy of the high-temperature sintering furnace is determined, the initial strategy is optimized based on the auxiliary parameters of all the heating areas, and all the heating areas of the high-temperature sintering furnace are regulated and controlled according to the optimization strategy. The problems of inaccurate temperature control, single parameter analysis, insufficient thermal coupling effect processing and the like in the traditional regulation and control technology are effectively solved.

The invention is suitable for the technical field of advanced powder metallurgy and ceramic material sintering, and provides an assembly line type flash sintering system and a sintering method. The system comprises a powder loading and pre-pressing module, a first automatic graphite paper pressing, paving and replacing module, a sintering module, a demolding and sampling module and a second automatic graphite paper pressing, paving and replacing module which are sequentially arranged in the material flowing direction, all the modules are connected through the vacuum switching module to form a continuous vacuum environment; the system further comprises a conveying system which is used for driving the sintering units bearing materials to sequentially flow among the modules. The continuous flash sintering device is suitable for carrying out efficient and full-automatic continuous flash sintering treatment on powder materials in a vacuum or protective atmosphere environment, the platform overturning risk can be fundamentally avoided, and the stability and safety of the sintering process are ensured.

The invention belongs to the technical field of circuit board metal smelting control, and discloses a circuit board metal smelting energy-saving parameter self-adaptive control system and method. The method comprises the following steps: carrying out real-time monitoring and fluctuation analysis on heating circuit voltage collected in unit time in the metal smelting process of the circuit board to obtain a voltage fluctuation level; processing the smelting state data acquired in unit time in the metal smelting process of the circuit board to obtain a smelting state characteristic data set, and identifying a current smelting stage; when the voltage fluctuation grade is greater than or equal to a preset voltage fluctuation grade threshold value, generating an energy-saving strategy control identifier in combination with the current smelting stage and the predicted smelting stage of the next unit time; dynamically adjusting energy-saving control parameters based on the voltage fluctuation grade, the smelting state characteristic data set and the energy-saving strategy control identifier; the intelligent self-adaptive control level of the circuit board metal smelting energy-saving parameters is enhanced, and energy-saving control is changed from passive execution to look-ahead response.

The invention is suitable for the technical field of powder metallurgy and advanced ceramic material sintering equipment, and provides an integrated flash sintering device for vacuum and a sintering method. The device comprises a power supply module, a high vacuum module, a first servo hydraulic machine, a second servo hydraulic machine, a third servo hydraulic machine, a mold rotation switching module, a vacuum feeding module, a green body pressing module, a demolding and mold cleaning module and a mold transfer module. According to the invention, an integrated gear tray design is adopted to integrate the functions of die installation, graphite paper treatment and green body pressing, and online synchronous cleaning of an electrode and a die is realized through die fixation and a cleaning brush arranged in a cleaning drum; therefore, full-automatic, high-efficiency and high-stability continuous production of flash sintering from powder filling to finished product collection is realized.

The invention provides an aluminum melting furnace door flue gas automatic control dust removal air volume system, and relates to the field of aluminum melting furnace flue gas purification treatment, and the system comprises a data acquisition and processing unit which is used for acquiring flue gas state data and furnace door state images at an aluminum melting furnace door, and identifying the current flue gas state grade and furnace door opening and closing degree of the aluminum melting furnace; determining a target concentration control threshold value; the air volume distribution unit is used for generating the total air volume adjustment amount by using an increment inversion and gain scheduling algorithm based on the flue gas state grade and the target concentration control threshold value, and performing air volume distribution processing on the multiple execution mechanisms by using a redistribution scaling pseudo-inverse method; and the air volume control unit is used for generating control instructions of the multiple execution mechanisms based on the air volume distribution result, sequentially transmitting the control instructions to all the execution mechanisms and executing air volume control. According to the invention, through combination of deep learning network identification and dynamic adjustment, real-time matching of the dedusting air volume and the flue gas volume is realized, and the operation cost of an enterprise is remarkably reduced.

The invention relates to the technical field of rotary kiln calcining equipment, in particular to a rotary kiln calcining method based on annular air curtain sealing, which comprises the following steps: S1, dynamic gap three-dimensional modeling: collecting a radial gap value between a kiln body flange end face and a static housing in real time through radial distance sensor groups uniformly distributed on the circumference; synchronously obtaining the axial displacement of the kiln body; constructing a dynamic gap three-dimensional topology model based on the angle distribution data of the radial gap value and the axial play vector; s2, generating a double-layer vortex air curtain; s3, dynamically regulating and controlling air curtain parameters; and S4, sealing efficiency closed-loop control is conducted, specifically, the escape dust concentration of the outer wall of the static housing is detected, and when the concentration exceeds the standard, the compensation coefficient of the reference flow velocity is increased according to the gradient, and the step S2 is executed again. The sealing effect of the rotary kiln is greatly improved by adopting a double-layer vortex air curtain sealing technology, dynamic gap modeling, air curtain parameter dynamic regulation and control and sealing efficiency closed-loop control.

The invention discloses a coal gangue distributed homogeneous high-temperature activation calcination method and system, and relates to the technical field of resources and environments, the system comprises a coal gangue powder preparation and feeding system, a coal gangue powder distributed homogeneous high-temperature activation calcination system, a high-temperature powder cooling system, a finished product collection system and a flue gas purification system; the coal gangue powder distributed homogeneous high-temperature activation calcining system comprises a primary cyclone preheating system and a distributed homogeneous high-temperature activation furnace; the air inlet end of the primary cyclone preheating system is communicated with the coal gangue powder preparing and feeding system, the primary cyclone preheating system is communicated with the homogeneous high-temperature activation furnace, materials in the distributed homogeneous high-temperature activation furnace are separated by the gas-solid cyclone separator and then are divided into two parts by the distributor, one part enters the high-temperature powder cooling system, and the other part enters the high-temperature powder cooling system; and the other part returns to the distributed homogeneous high-temperature activation furnace for circulation. According to the method, large-scale treatment of high-temperature activation and calcination of the coal gangue is realized, and the uniformity and controllability of product quality are remarkably improved.

The invention is applicable to the field of advanced manufacturing of powder materials, and provides flash sintering equipment for high current and high pressure, which comprises a power supply module, a pressure generation module, a support frame, a high vacuum module, a jacking module, a sintering unit and a conveying module. The sintering unit is provided with a sintering platform, a floating die module and a floating lower punch module and is guided through an upper guide column and a lower guide column. The jacking module jacks the lower electrode through a lead screw to push the floating lower punch module and the floating die module to move upwards along a guide column to be separated from the platform, and floating butt joint is achieved; the pressure generation module drives the upper punch to press downwards through the upper electrode and applies pressure to the sample, and the power supply module applies sintering current at the same time. Through the design of the floating module in non-rigid connection, the pressing force is prevented from being transmitted to the sintering platform, the equipment is prevented from overturning, and the stability of the sintering process is improved; and the whole station switching of the sintering unit is realized in combination with the conveying module, so that the continuous automatic production capacity of the equipment is improved.

The invention relates to the field of sintering furnaces, and discloses an atmosphere box type glue discharging sintering furnace with a rapid cooling function, the atmosphere box type glue discharging sintering furnace comprises a furnace body, a heating mechanism and an air supply mechanism, the heating mechanism and the air supply mechanism are arranged in the furnace body, the heating mechanism is arranged at the top of a furnace cavity, and the output end of the air supply mechanism is connected with the inner side face of the furnace body; the air supply mechanism supplies air from left to right or from right to left after the heating mechanism is started for a preset time, hot air circulation is formed in the furnace cavity, a rotatable furnace door is arranged on the front end face of the furnace body, a ventilation hole plate is arranged on the inner wall of the furnace door, and a heat preservation layer is arranged behind the ventilation hole plate. By improving an existing hot air circulating system, the problem that the subsequent heat dissipation efficiency is low due to the design of a heat preservation layer is solved; by setting the time sequence and direction of an air supply path, circulation and discharge of hot air are achieved, furnace temperature is evenly distributed in the heating stage, residual heat is rapidly taken away after heating is stopped, and the overall heat dissipation efficiency is improved.

The dust hood comprises a cover body, a lifting device and a heat insulation part, the lifting device and the heat insulation part are arranged on the cover body, a suction cavity and a suction opening are formed in the cover body, the suction opening is formed in the suction cavity and used for being connected with a suction fan, the lifting device comprises a driver and a driving rod, and the driver drives the driving rod to reciprocate. The heat insulation piece is connected to the driving rod and comprises a top plate and a side plate, and the side plate is connected to the lower end of the top plate; when the dust removal cover is arranged on a furnace body of the medium-frequency induction melting furnace in a covering mode, the driving rod drives the heat insulation piece to abut against the end face of a furnace opening of the medium-frequency induction melting furnace, and the periphery of the cover body is arranged above the end face of the furnace opening of the medium-frequency induction melting furnace in a spaced mode. Therefore, heat of the smelting furnace and external low-temperature air can be isolated through the heat insulation piece, the effect of sucking smoke can be achieved, the heat of the smelting furnace can be prevented from being taken away by the low-temperature air, the heat loss of the smelting furnace is greatly reduced, and the smelting cost is reduced.

The invention provides a pulverized coal temperature nuclear fusion composite glow flame burner, and relates to the field of cement production. The burner comprises: a metal elbow; the thermonuclear fusion excitation assembly comprises a metal shell, a metal electrode, an insulating connecting piece and an electrode tip; an opening is formed in the portion, located in the metal bent pipe, of the metal shell. The metal electrode is arranged in the metal shell and is connected with the metal shell through the insulating connecting piece; the metal shell is provided with a conveying pipe communicated with an inner cavity of the metal shell, a conveying channel is arranged in the metal electrode, one end of the conveying channel penetrates through the outer side wall of the first end of the metal electrode to form an air outlet, the electrode tip is arranged at the air outlet, and the electrode tip is provided with a flow guide through hole communicated with the conveying channel. The conveying channel communicates with an air supply valve set. By actively constructing the plasma field, the combustion stability in the starting stage, the low-load working condition or the kiln condition fluctuation can be remarkably improved, meanwhile, nuclear energy gain is fully utilized to achieve energy conservation and consumption reduction, and the problems of insufficient combustion and flameout are effectively avoided.

The invention relates to the technical field of metallurgy, one embodiment of the invention provides an environment-friendly and energy-saving smelting furnace for metallurgy, the environment-friendly and energy-saving smelting furnace for metallurgy comprises a smelting table and a smoke cylinder, a smelting barrel is fixedly mounted on the inner wall of the smelting table, and a fixing frame is fixedly mounted at the top of the smelting table; an energy-saving device used for circulating waste gas generated by the equipment and saving energy is arranged on the surface of the smelting barrel and comprises a first motor, the first motor is fixedly installed on the surface of the smelting barrel, a first rotating disc is fixedly installed at the output end of the first motor, and a second rotating disc is rotatably installed on the inner wall of the smelting barrel. A rotating shaft fixedly penetrates through the surface of the second rotating disc, and a second motor is fixedly installed on the surface of the fixing frame. By means of the technical scheme, the technical problem that in the prior art, when materials in equipment are smelted, heat can be possibly conducted to the outside through the inner wall of the equipment, and then energy consumption of the equipment is affected is solved.

The invention belongs to the technical field of kilns, and particularly relates to a large-scale top-loading dynamic calcining kiln which comprises a kiln body, the kiln body is of a vertical structure, a calcining area is arranged in the kiln body, a pusher is arranged at the bottom of the kiln body, and the large-scale top-loading dynamic calcining kiln is characterized in that a feeding port is formed in the top of the kiln body, the upper portion of the feeding port is communicated with a storage bin, and an electric valve is arranged on the feeding port; a material flow divider is arranged below the feeding hole, and a preheating dehydration area, a calcining area and a cooling area are sequentially arranged below the flow divider; a plurality of groups of internal heating type combustion units are arranged in the calcining area side by side, two or more layers of combustion chambers are arranged in each internal heating type combustion unit, a horizontal duplex flame path is arranged below each combustion chamber, a smoke chamber is arranged above each horizontal flame path, and a smoke hole array with an outlet facing downwards at an included angle of 25 degrees is formed in the side wall of each smoke chamber; the top of the internal heating type combustion unit is provided with a full-length sharp ridge, and the included angle of the top of the sharp ridge is 60 degrees. The method has the advantages that the problem of calcination of light magnesium oxide products with different granularities in the magnesite is solved, and the large-scale production target of annual output of 100,000 tons is met.

The present invention relates to a vertical-retort reduction furnace for producing metal magnesium, comprising: a furnace body defining a furnace chamber (2), and vertical retorts (6) arranged in the furnace chamber (2), wherein the vertical retorts (6) each comprise a hollow straight cylindrical retort body (6-3); the retort body (6-3) defines, in an upper portion, a first crystallizer chamber (6-7) for receiving a crystallizer (7), and defines a second chamber (6-8) located below the first crystallizer chamber (6-7); the vertical retorts (6) each are provided with a top opening (6-10) and a bottom opening (6-6); the diameter of the bottom opening (6-6) is equal to the diameter of the second chamber (6-8). The vertical-retort reduction furnace further comprises bin assemblies (10), wherein the bin assemblies (10) each comprise an upper bin (10-1) allowing for filling of a pellet material (8) and a lower bin (10-4) for slidably receiving the upper bin (10-1). The present invention also relates to a method for producing metal magnesium by using the vertical-retort reduction furnace.

The invention is suitable for the technical field of material sintering, and provides a floating type sintering platform demolding and sampling device which comprises a sintering platform, a floating lower electrode module, a floating mold module, a lifting mold frame, a demolding and mold cleaning module and a sample collecting and electrode cleaning module. The lifting mold frame is provided with a first platform and a second platform, and the first platform penetrates through the floating lower electrode module through a first limiting groove to jack the floating mold module to a set height; the sample collecting and electrode cleaning module slides to the position below the mold module through the second limiting groove, and sample receiving and electrode cleaning are achieved. High-temperature online demolding can be achieved, the sample breaking risk is reduced, and the breaking problem caused by the difference of thermal expansion coefficients is avoided; the device integrates demolding, mold cleaning, electrode cleaning and sample collecting functions, is compact in structure, reduces the occupied area and complexity of equipment, prolongs the service life of the mold and the electrode, and improves the sample quality.

The invention relates to the technical field of neodymium iron boron sintering equipment, and discloses neodymium iron boron sintering temperature control equipment which comprises a furnace body and a vacuum system, the furnace body is sequentially provided with a degreasing area, a sintering area and a tempering area which are physically separated in the material conveying direction, and double-open heat insulation doors are installed between the areas; an induction coil heating assembly is installed in the sintering area, and a partition type resistance heating assembly is embedded in the side wall of the hearth in the circumferential direction. According to the neodymium iron boron sintering temperature control equipment, the partition type resistance heating assembly comprises a plurality of independent heating units, the heating units are distributed along the circumference of the hearth wall of the furnace body in an array mode, the independently-controlled heating units are distributed in a circumferential array mode, accurate temperature control can be conducted on different areas of the hearth, and the temperature control efficiency is improved. When the laser thermodetector detects that the temperature of a certain area is low, the control system can independently increase the heating power of the corresponding heating unit, and the temperature uniformity of the whole sintering area is ensured.

The invention provides an energy-saving smelting furnace structure, and relates to the technical field of smelting furnaces, the energy-saving smelting furnace structure comprises a smelting furnace body, a lifting furnace cover is arranged above the smelting furnace body, a waste residue storage box is fixedly connected to the side surface of the smelting furnace body, a furnace cover bracket is vertically welded above the lifting furnace cover, and a lifting push cylinder is fixedly connected above the furnace cover bracket; the smelting furnace has an automatic slag salvaging function, slag is discharged to the slag storage box through the slag discharge port when the smelting furnace is closed, floating impurities in molten liquid are removed, the cover does not need to be opened manually to remove the floating slag, heat loss in the smelting furnace opening process is reduced, energy consumption of the smelting furnace is reduced, and the problem that when an existing smelting furnace is used for smelting metal, the cost is low is solved. The problems that a furnace cover needs to be opened to add metal materials in the smelting process, heat loss is caused, energy consumption is not reduced, and in the metal smelting process, a smelting furnace needs to be opened to fish and separate dross floating on the upper layer, heat loss is caused, and energy consumption is not reduced are solved.

The invention discloses a process and system for preparing an auxiliary cementing material by calcining granular coal gangue coupled with a cement clinker sintering system, and the process comprises the following steps: treating large undisturbed coal gangue to obtain granular coal gangue, and quantitatively analyzing minerals in the granular coal gangue; feeding the granular coal gangue raw material into an activating calcining kiln for activating and calcining; then feeding into a grate cooler for cooling to obtain calcined activated coal gangue; wherein an activation calcination heat source comes from high-temperature section hot air of a grate cooler and hot air at an outlet of a C4 preheater, the proportion of the high-temperature section hot air, the hot air at the outlet of the C4 preheater and combustion-supporting air is controlled, and temperature and oxygen concentration adjustment at the activation calcination stage is achieved. According to the invention, the system for preparing the auxiliary cementing material by calcining the coal gangue is coupled with the original cement clinker sintering system, so that the on-line doping of the auxiliary cementing material in the cement clinker is realized, and meanwhile, the carbon emission is reduced.

The invention relates to the technical field of power batteries, and discloses a temperature control method and system in the sintering repair process of a power battery positive electrode material, and the method comprises the steps: obtaining defect parameters of a plurality of to-be-repaired power battery positive electrode materials, respectively analyzing the temperature and time required by different stages of the sintering repair process of each to-be-repaired power battery positive electrode material through a preset temperature prediction model to obtain a corresponding multi-stage temperature control curve; the influence of the heating sources on different positions in the sintering furnace is calculated, grid division is conducted on the sintering furnace, a plurality of grid areas are obtained, and one heating source is arranged in each grid area; and analyzing the heating state required by each grid region, constructing a target state matrix, and controlling the heating mode of the heating source of each grid region and the moving time of the positive electrode material of the power battery to be repaired, so that the battery material can be added at any time and the temperature can be accurately controlled in the sintering repair process, and the repair efficiency is improved. The sintering repairing quality of the power battery positive electrode material is improved.

The invention provides a low-nitrogen combustion decomposing furnace and a lime calcining system, and belongs to the technical field of limestone calcining, specifically, the low-nitrogen combustion decomposing furnace comprises a decomposing furnace body used for calcining and decomposing limestone, and a furnace chamber of the decomposing furnace body is divided into a material collecting area, a hot carbon reduction area and a combustion decomposing area; materials, combustion-supporting gas and fuel enter the decomposing furnace body in two ways, and the proportion of the materials, the combustion-supporting gas and the fuel entering the decomposing furnace body in the two ways is controlled, so that a hot carbon reduction area and a combustion decomposing area are formed in a furnace cavity of the decomposing furnace body. For example, the proportion of combustion-supporting gas in the combustion decomposition area is more, so that materials can be fully combusted, while the proportion of the combustion-supporting gas in the hot carbon reduction area can be reduced, so that insufficient combustion is carried out in the area, and meanwhile, suppression and reduction are carried out through fuel, so that nitrogen oxide passing through the area is subjected to reduction reaction to become carbon dioxide and nitrogen to be discharged; the content of nitrogen oxide is greatly reduced, and the nitrogen oxide treatment procedure of the subsequent exhaust process is reduced.

The invention relates to the technical field of alloy smelting, in particular to a non-vacuum smelting preparation method of Mn-based alloy, which comprises the following steps: smelting a metal material and a covering agent to form a continuous slag layer, and obtaining a plurality of partial pressure ratios of furnace mouth escape gas and a vibration spectrum of a furnace body according to an initial detection period; determining whether the partial pressure ratio and the vibration spectrum meet oxidation judgment conditions and vibration judgment conditions or not; determining a melt state and a slag layer protection state on the basis of an oxidation judgment condition and a vibration judgment condition, adjusting input power and slag layer parameters on the basis of the slag layer protection state in combination with the partial pressure ratio, and adjusting the content of a deoxidizing agent in a pre-deoxidation procedure; and the risk that the final manganese yield is not within the target range is determined based on the risk grade judgment result, the final deoxidation degree and the standing duration are adjusted, the initial detection period is shortened, and the manganese-based alloy is prepared through pouring. The smelting parameters are adjusted by identifying the states of the melt and the slag layer and combining the manganese feedback efficiency, and the manganese yield of the manganese-based alloy smelted under the non-vacuum condition is increased.

The invention provides an annular semiconductor COS laser shell sintering fixing device and method, and relates to the technical field of laser welding equipment manufacturing, the annular semiconductor COS laser shell sintering fixing device comprises a base, the two ends of the base are connected with supporting frames respectively; the supporting frames are connected to the two ends of the base respectively; the sintering fixing blocks are connected between the two supporting frames; the sintering fixing block is provided with at least one first mounting hole and at least two second mounting holes which are arranged at intervals in the second direction, and the first mounting hole and the second mounting holes are arranged in the first direction; the size of the first mounting hole in the second direction is larger than that of the second mounting hole in the second direction, and the first mounting hole and the second mounting hole are respectively used for mounting sintering probes; and each sintering probe corresponds to one to-be-sintered chip of the to-be-sintered annular semiconductor laser shell. The effect that a user can easily adjust the pressure between the sintering fixing block and the to-be-sintered chip is achieved.

The invention discloses a control method for stable blanking of sintering ingredients, relates to the technical field of sinter, and solves the problem that precise blanking of a batching chamber is restricted by unstable blanking influence elements of the sintering ingredients. The control method comprises the following steps: stabilizing a bin position; the operation state of the equipment is stabilized; and the stability of metering and blanking is checked. According to the method, the automatic control and optimal method and scheme for precise blanking of various materials in a batching chamber according to a set ratio are achieved, precise and accurate sintering batching blanking is achieved, and excellent physical, chemical and metallurgical properties of sintered ore are achieved; through implementation of the steps and the method, the corresponding process, equipment, automatic control and the like, and link point location careful control, the precise blanking condition can be met, and innovative conditions and basis are provided for sintering quality improvement and industry progress.

The invention relates to a recycling device and method for flue gas waste heat of a sintering machine, and the recycling device comprises the sintering machine, a flue gas evaporator, a dust removal device, a flue gas conveying device and a chimney which are connected in sequence in the flue gas conveying direction; the sintering machine comprises a crushing device arranged at the tail part of the sintering machine and a chute arranged at the lower part of the crushing device; a flue gas cover is arranged on the sintering machine, a first flue gas outlet is formed in the flue gas cover at the tail part of the sintering machine, and a second flue gas outlet is formed in the flue gas cover at the chute; the flue gas evaporator comprises a forced circulation evaporator and a natural circulation evaporator; the first flue gas outlet is connected with the forced circulation evaporator; and the second flue gas outlet is connected with the natural circulation evaporator. Flue gas at different positions of the sintering machine is subjected to heat exchange, the waste heat recovery efficiency is improved, double operation systems are adopted for heat exchange, and the system energy consumption is reduced while the factory space is reasonably utilized.

The application discloses a low-temperature firing method of mixed porcelain blanks, which comprises three stages. By controlling the kiln pressure, combustion-supporting wind, temperature-adjusting wind, natural gas flow and opening degree of each zone in each stage, the heating speed of each stage is controlled, the porcelain blanks prepared by dry and wet methods are fired together, the problem that the two kinds of porcelain blanks need to be fired respectively in the prior art is solved, the problem of main body cracking and burst of the porcelain blanks due to different water contents of the two kinds of porcelain blanks in the firing process is solved, and the firing efficiency is greatly improved under the premise of ensuring the quality of the porcelain blanks.

The application is suitable for the field of advanced manufacturing of powder materials, and provides a flash sintering equipment for large current and large pressure, which comprises a power supply module, a pressure generation module, a support frame, a high vacuum module, a jacking module, a sintering unit and a conveying module. The sintering unit is provided with a sintering platform, a floating mold module and a floating lower punch module, and is guided by upper and lower guide columns; the jacking module jacks up the lower electrode through a lead screw, pushes the floating lower punch module and the floating mold module to move upwards along the guide column to separate from the platform, and realizes floating butt joint; the pressure generation module drives the upper punch to press downwards through the upper electrode and applies pressure to the sample, and the power supply module simultaneously applies sintering current. Through the design of the floating mold module connected in a non-rigid manner, the application avoids the transmission of the pressing force to the sintering platform, prevents the equipment from overturning, and improves the stability of the sintering process; and the combination of the conveying module realizes the overall station switching of the sintering unit, and improves the continuous automatic production capacity of the equipment.

A method for preventing the burning of a slag-probing rod used in high-temperature metallurgical smelting equipment and the slag-probing rod, in which a high-temperature-resistant isolation layer is compounded on the surface of the base material of the slag-probing rod, and a material-modified layer is further coated on the surface of the high-temperature-resistant isolation layer to further enhance the heat-insulating effect of the isolation layer and prevent the burning of the slag-probing rod in the high-temperature metallurgical smelting liquid; the high-temperature-resistant isolation layer is a ceramic-based heat-insulating material layer, and a modified layer composed of rare earth material is coated on the outer surface of the ceramic-based heat-insulating material layer, the material properties of the outer surface of the ceramic-based heat-insulating material layer are modified by the rare earth material, a high-temperature-resistant isolation layer with better heat-insulating effect is formed, and when the slag-probing rod is inserted into the smelting metal liquid in the high-temperature metallurgical smelting equipment, the high-temperature-resistant isolation layer protects the base rod of the slag-probing rod from high temperature. The present application forms a heat-insulating isolation layer on the outer surface of the ceramic-based heat-insulating material layer by modifying with rare earth material, which can effectively reduce the temperature of the middle part of the slag-probing rod and prevent the burning of the slag-probing rod.

This application provides a solar cell and a method for fabricating the same. The method includes: providing a solar cell having a first side and a second side opposite to each other; the first side having multiple first grid lines and the second side having multiple second grid lines; obtaining the overlap index of each first grid line on the solar cell; classifying the first grid lines according to their overlap index to divide them into at least a first type of grid line and a second type of grid line; and performing a laser-assisted sintering process, wherein the process parameters used for the first type of grid lines are within a first parameter range, and the process parameters used for the second type of grid lines are within a second parameter range, wherein the maximum value of at least one parameter range in the first parameter range is less than or equal to the minimum value of the corresponding parameter range in the second parameter range. The solar cell and the method for fabricating the same provided by this application are at least beneficial for improving the yield and efficiency of solar cells.

The invention provides a microwave plasma preparation method and application of a manganese-based potassium ion battery positive electrode material, and the method comprises the following steps: S1, dissolving a dispersant in deionized water and ethanol to obtain a mixed solvent; s2, ball-milling and mixing a potassium source, a manganese source and other transition metal sources in the solvent to form uniform slurry; and S3, putting the precursor prepared by spray drying into a microwave plasma sintering furnace, and quickly heating and calcining to obtain the manganese-based potassium ion battery positive electrode material. Spray drying is adopted to remove a solvent, the morphology is controlled, and solvent residues are avoided; calcining is rapidly completed through a microwave plasma technology, the sintering time is shortened to the minute level, the productivity is improved, and the energy consumption is reduced; ball milling, spray drying and microwave plasma sintering are easy to increase the yield, and a new path is provided for large-scale production.

The invention relates to the technical field of energy-saving and environment-friendly production, in particular to a calcining method and system for flowing suspension roasting petroleum coke. The method comprises the following steps: feeding a petroleum coke raw material into a multi-stage preheating system for countercurrent preheating; the preheated material enters a flowing suspension roasting furnace, and forms a suspension state in high-temperature airflow for rapid roasting; the roasted material is separated from flue gas, the separated flue gas containing volatile components enters a combustion furnace to be combusted and then is purified, and part of heat of the flue gas is recycled; the separated high-temperature calcined coke is cooled through an air cooling system and a water cooling system, heat is recycled, and hot air generated by air cooling is recycled to the roasting furnace. By adopting a fluidization technology, the roasting time is shortened to a second level, and the production efficiency is remarkably improved; through multi-stage countercurrent heat exchange, flue gas combustion and heat recycling, gradient utilization of heat and accurate control of atmosphere are realized, energy consumption and oxidation burning loss are greatly reduced, volatile components of the product are stably controlled to be below 1%, the yield is high, and the quality is uniform.