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275results about "Charge treatment type" patented technology

Assembly line type flash sintering system and sintering method

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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH +3

Vacuum integrated flash sintering device and sintering method

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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

System for automatically controlling dust removal air volume of flue gas of aluminum melting furnace door

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.
Owner:NANJING YUNKAI ALLOY CO LTD

Coal gangue distributed homogeneous high-temperature activation calcination method and system

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.
Owner:CHENGDU DESIGN & RES INST OF BLDG MAT IND CO LTD

Flash sintering equipment for large current and large pressure

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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH +3

Large-scale top-loading dynamic calcining kiln

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.
Owner:LIAONING PUWANG MAGNESIUM TECHNOLOGY CO LTD

Vertical-retort reduction furnace for producing metal magnesium and method for producing metal magnesium

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.
Owner:CHINA ALUMINUM INT ENG CORP +1

Floating type sintering platform demolding and sampling device

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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH +3

Process and system for preparing auxiliary cementing material by calcining granular coal gangue coupled with cement clinker sintering system

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.
Owner:TIANJIN CEMENT IND DESIGN & RES INST CO LTD

Non-vacuum melting preparation method of Mn-based alloy

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.
Owner:XUZHOU YONGSHENG METAL MATERIALS CO LTD

Low temperature firing method of mixed loading porcelain body

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.
Owner:XIAN XD HIGH VOLTAGE PORCELAIN INSULATOR CO LTD +1

A flash sintering device for large current and large pressure

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.
Owner:INNER MONGOLIA UNIV OF SCI & TECH +3

A method for prolonging the service life of a slag probe for high-temperature smelting of metal and the slag probe

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.
Owner:ZHUZHOU YUYI TECH CO LTD

Calcining method and system for flowing suspension roasting of petroleum coke

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.
Owner:BAOLAN EP INC

Static sintering method and system for preparing aluminum hydroxide by extracting aluminum element from fly ash

The invention relates to a static sintering method and system for preparing aluminum hydroxide by extracting an aluminum element from fly ash, and the static sintering method comprises the following steps: firstly, taking a raw material which is crushed to a process control fineness as a pre-powder material, carrying out raw material preparation and blank forming on the pre-powder material to obtain a blank, sintering the blank to obtain a clinker, and sintering the clinker to obtain the aluminum hydroxide. The clinker is dissolved out to obtain slurry, and then the slurry is subjected to slurry desilicication, carbon component reaction, hydrogen-aluminum separation and drying to prepare high-whiteness and high-purity aluminum hydroxide; wherein the raw materials comprise fly ash; the blanks are sintered into polygon prism-shaped blanks, the polygon prism-shaped blanks are stacked on a high-temperature-resistant kiln car in an industrial tunnel kiln, the blanks are roasted in the industrial tunnel kiln, and the roasting temperature ranges from 800 DEG C to 1100 DEG C. According to the invention, solid wastes such as fly ash, coal gangue, carbide slag and the like, pulverized coal and sodium carbonate are crushed into materials with the same fineness, high-whiteness and high-purity aluminum hydroxide can be obtained through an alkaline static sintering process, the recovery rate of aluminum in the solid wastes is about 90%, and harmless, resource and synergistic utilization of the solid wastes such as fly ash and the like is realized.
Owner:INNER MONGOLIA HUIYUAN TECH CO LTD

Manufacturing method for sintered bodies

To provide a production method of a sintered body that can obtain a sintered body satisfying light transmissivity required as a dental prosthetic material by short time sintering without essentially requiring precise temperature control at a high temperature region and without depending on a content of a stabilization element of a zirconia composition.SOLUTION: A production method of a zirconia sintered body containing a stabilization element comprises: a first temperature rising step for rising temperature of a zirconia composition containing the stabilization element from a temperature rising start temperature up to a first arrival temperature between 800°C or higher and lower than 1400°C with a rate of temperature increase of 150°C / minute or more; a second temperature rising step for rising the temperature from the first arrival temperature up to a second arrival temperature between 1400°C or higher and lower than 1580°C with a rate of temperature increase of over 30°C / minute and less than 200°C / minute; and a holding step for holding the temperature at the second arrival temperature.SELECTED DRAWING: None
Owner:TOSOH CORP

A lithium iron phosphate continuous dynamic carbonization reduction roasting device and a roasting method

The application provides a lithium iron phosphate continuous dynamic carbonization reduction roasting device and a roasting method, and relates to the technical field of new energy batteries. Raw materials in a raw material pool enter a spray drying device through a first pipeline, enter a first cyclone bag dust removal device through a second pipeline, and then enter a de-coking carbonization device through a feeding device. The materials enter a second cyclone bag dust removal device through a third pipeline, and then enter a first-stage reduction roasting unit and a second-stage reduction roasting unit in sequence. Nitrogen in a nitrogen source enters a fifth pipeline and then enters the heating device together with the materials, and then enters the de-coking carbonization device through the fourth pipeline. The nitrogen and the gas in the materials enter the second-stage reduction roasting unit together, and then enter the first-stage reduction roasting unit. Continuous production and dynamic roasting are realized, sticking in roasting is avoided, and the broken and homogenized sintering is avoided. Wear and tear and impurity pollution of the product under high temperature are avoided, and the quality stability of the lithium iron phosphate is realized.
Owner:LIAONING DONGDA POWDER ENG TECH CO LTD

An energy storage system based on thermo-chemical energy storage and rankine cycle and a method of operation

The present application relates to the technical field of energy storage, and relates to an energy storage system based on thermochemical energy storage and Rankine cycle and an operation method. The energy storage system comprises a storage device, an energy storage device, an energy release device and a power generation device. The energy storage device comprises a calcium carbonate rotary calcining kiln, a first heat exchanger network and an electric heater, and the structural components are sequentially connected. The electric heater is used to convert excess electricity into heat energy, the calcium carbonate decomposition reaction is carried out in the calcium carbonate rotary calcining kiln, the heat energy is converted into chemical energy stored in calcium oxide, the energy release device is used to convert the chemical energy stored in calcium oxide into heat energy, the heat energy is converted into electricity by the power generation device, and the electricity demand of the terminal user is met. The energy storage system provided by the present application can realize the conversion, transmission and storage of different energies, has high energy conversion efficiency, can effectively reduce the coal consumption in the energy conversion process, and meets the energy saving and carbon reduction and flexibility reconstruction requirements of coal-fired power plants.
Owner:BEIJING INST OF TECH

Vacuum melting system and method for high-purity molybdenum and fiber-structured molybdenum material

The application relates to the technical field of refractory metal material processing, in particular to a vacuum smelting system and method for high-purity molybdenum and a fiber-structure molybdenum material, the vacuum smelting system for high-purity molybdenum comprises a three-layer composite crucible, the vacuum smelting method for high-purity molybdenum comprises the following steps: step S1): under the condition of a vacuum degree of less than or equal to 5*10 ‑3 Pa, a three-layer composite crucible is used to perform consumable smelting on molybdenum raw materials; step S2): a directional solidification rate is controlled to be 8-12 mm / min, and a longitudinal temperature gradient is formed to be greater than or equal to 100 DEG C / cm; step S3): multi-stage plastic deformation is implemented on a solidified ingot, and a total deformation amount is greater than or equal to 90%; the fiber-structure molybdenum material is formed with a longitudinal continuous fiber structure in the material, a grain length-diameter ratio is greater than or equal to 10:1, a fiber diameter is less than or equal to 5 microns, hydrogen content is less than or equal to 5 ppm, oxygen content is less than or equal to 50 ppm, and a room-temperature tensile strength is greater than or equal to 780 MPa; the application can prepare high-purity fiber-structure molybdenum material, and improves the problem of insufficient axial performance caused by the isotropy of a traditional equiaxed crystal structure.
Owner:YUXIANG ADVANCED TECH & MATERIALS CO LTD

Ceramic glue discharging and sintering integrated furnace for 3D printing forming and operation method

The invention discloses a ceramic glue discharging and sintering integrated furnace for 3D printing forming and an operation method. The integrated furnace comprises a furnace body, a supporting structure, a lifting driving mechanism, a sealing assembly and an atmosphere supply pipeline. The sealing assembly is composed of a movable sealing unit and a sealing pipe, and a closed space can be formed in the furnace body through lifting. The operation method comprises the steps of charging, closed space forming, atmosphere replacement, rubber discharging, carbon discharging, sintering and cooling, and whole-process integrated continuous treatment is achieved. By means of the dynamic sealing technology, biscuit transfer damage is avoided, the yield and production efficiency are remarkably improved, equipment investment and energy consumption are reduced, and the core problem existing in traditional step-by-step treatment is solved.
Owner:TIANJIN ZHONGHUAN ELECTRIC FURNACE CO LTD

Flue gas closed cycle sintering system and method

The invention belongs to the field of iron and steel smelting, and particularly discloses a sintering system and method for flue gas closed cycle. According to the system, an ignition heat preservation furnace and a flue gas cover are sequentially arranged above a sintering machine, an air bellow is arranged below the sintering machine, flue gas generated by sintering can be fed into a high-temperature section of a circular cooler through the air bellow and an exhaust fan to exchange heat with high-temperature materials, and waste gas obtained after heat exchange is conveyed back to the ignition heat preservation furnace and / or the flue gas cover for waste heat utilization. And meanwhile, cold air is introduced into the low-temperature section of the circular cooler through an air blower for heat exchange and then introduced into the medium-temperature section for heat exchange, and finally waste gas of the medium-temperature section is conveyed to an ignition heat preservation furnace and / or a smoke hood for waste heat utilization. Furthermore, the waste gas for waste heat utilization can be introduced into different sintering positions according to the temperature gradient, so that the waste heat utilization is more efficient. According to the system and the method, the utilization rate of the waste heat of the sintering flue gas can be greatly increased, pollution caused by direct exhaust of the flue gas is reduced, and the system and the method have extremely high industrial application value.
Owner:ZHONGYE-CHANGTIAN INT ENG CO LTD

Fusion control method, device and equipment for hearth temperature of sintering ignition furnace

According to the fusion control method, device and equipment for the hearth temperature of the sintering ignition furnace, by fusing the characteristic matrix of multi-source parameters, a hearth temperature prediction model can more comprehensively and accurately sense changes of the production process, accurate prediction of the hearth temperature is achieved, and therefore passive response is changed into active look-ahead control; through a data-driven hearth temperature prediction model dominant and physical static heat balance model verification bottom-filling hybrid architecture, the advantage of processing complex nonlinearity of the hearth temperature prediction model is played, the rationality and safety of control are ensured by using a physical model, the severe change of a working condition can be effectively handled, and the service life of the system is prolonged. The control instruction is prevented from violating a basic physical rule; by means of feedforward-feedback fusion control, stable and accurate adjustment of the temperature of the hearth is achieved, over-burning and under-burning are avoided through accurate temperature control, the quality of sintered ore is stabilized and improved, meanwhile, gas consumption is effectively reduced, and the requirement for green intelligent manufacturing is met.
Owner:ZHONGYE-CHANGTIAN INT ENG CO LTD +1

Electric boosting system of inorganic salt kiln

The invention relates to the technical field of inorganic salt processing, and discloses an inorganic salt kiln electric boosting system which comprises a furnace body, a plurality of flame ports in a circumferential array are formed in the upper side of the inner wall of the furnace body, and a plurality of bottom electrodes in a circumferential array are arranged on the lower wall of an inner cavity of the furnace body. A first thermocouple and a second thermocouple are arranged on the rear wall and the lower wall of an inner cavity of the furnace body correspondingly, and the side wall of the middle of the furnace body is rotationally connected with a plurality of tooth pipes with the middle expanded and arrayed in the circumferential direction. The direction adjusting assembly drives the toothed pipe to deflect upwards or downwards, current distribution is adjusted, rolling and mixing of melt are controlled, temperature and component unevenness is eliminated, uniform melting is guaranteed, the melting effect is improved, and after electrode consumption is shortened, the production efficiency is improved. The side electrodes in any deflection direction can be driven to extend outwards conveniently by controlling the top extension assembly, so that the effective working length is supplemented, the melting quality is guaranteed, and the side electrode parts can be fully and reliably cooled before and after the side electrodes extend out in cooperation with the cooling assembly.
Owner:SHANDONG LAIZHOU WELFARE PAOFLORINE CO LTD

Decarbonation process of carbonated materials in a multi-shaft vertical kiln

The present invention discloses a decarbonation process of carbonated materials, in particular limestone and dolomitic limestone, with CO2 recovery in a multishaft vertical kiln (MSVK) comprising a first, a second, and optionally a third shaft with preheating, heating and cooling zones and a cross-over channel between each shaft, alternately heating carbonated materials by a combustion of at least one fuel with at least one comburent up to a temperature range in which carbon dioxide of the carbonated materials is released, the combustion of the fuel and the decarbonatation generating an exhaust gas, the decarbonated materials being cooled in the cooling zones with one or more cooling streams, wherein a mixing between the exhaust gas and the one or more cooling streams is minimized by operating said kiln in a mode in which between two subsequent alternating heating cycles between the first and the second or the third shaft, the decarbonated materials in at least the first, the second and / or the third shaft are cooled with the one or more cooling streams while a supply of the fuel in each shaft is stopped.
Owner:CARMEUSE TECHNOLOGIES SA +1

A screed

The application provides a material leveler, and belongs to the technical field of metallurgical sintering processes.The material leveler comprises a top frame, a lifting frame, a lifting mechanism and a vibration assembly; the top frame is fixed on a sintering machine platform steel beam; the lifting mechanism is arranged on the top frame and is used to drive the lifting frame to lift; the lifting frame is arranged below the top frame, and a vibration plate and a material leveler plate are sequentially arranged at the bottom of the lifting frame along the direction in which a trolley travels; the vibration plate and the material leveler plate both have circular arc surfaces for material leveling at the bottom; the vibration plate is transversely and slidably connected to the lifting frame along the length direction of the vibration plate, and the material leveler plate is fixed to the lifting frame; the vibration assembly is arranged on the lifting frame and is used to drive the vibration plate to reciprocatingly slide. The vibration assembly drives the vibration plate to reciprocatingly slide at a high frequency and a short distance, so that dynamic material leveling is realized, the air permeability of the material is effectively improved, the material leveler plate further levels and compacts the material that has been preliminarily processed by the vibration plate, the surface of the material is more uniform, and the sintering effect is improved.
Owner:XINJI AOSEN STEEL GRP CO LTD

Curing furnace and method of controlling a curing furnace

A curing oven (1) for curing a mineral wool web (2), the curing oven comprising an air-permeable conveyor (3) for advancing the mineral wool web (2) through an essentially closed cabinet (4) from a mineral wool web inlet (5) provided at one end of the cabinet to a mineral wool web outlet (6) provided at the other end of the cabinet, the curing oven (1) further comprising a hot air inlet (7) arranged for guiding a flow of hot air through the conveyor (3). The curing oven comprises at least one deformation detector (12, 13).
Owner:ROCKWOOL AS

Energy-saving and environment-friendly petroleum coke calcining system

The present application relates to the technical field of petroleum coke calcination, and particularly discloses an energy-saving and environment-friendly petroleum coke calcination system. The system comprises a rotary kiln calcination unit, a flue gas waste heat deep recovery unit, a kiln body radiation heat recovery and heat preservation strengthening unit, and an intelligent thermal regulation and control unit. The flue gas waste heat unit recovers flue gas in multiple stages through high-temperature radiation, medium-temperature convection, and low-temperature heat pipe heat exchangers. The kiln body unit recovers kiln body heat dissipation through heat-conducting pads, heat pipe arrays, and cooling jackets, and uses an outer heat preservation layer to inhibit heat loss. The intelligent regulation and control unit dynamically optimizes system operation based on real-time data. The scheme realizes efficient use of the full spectrum of heat energy, improves system thermal efficiency, and reduces energy consumption.
Owner:INNER MONGOLIA HUAYANG HIGH-TECH MATERIALS TECH CO LTD

Crystal annealing device for improving energy spectrum uniformity of cadmium zinc telluride ray detector

The invention discloses a crystal annealing device for improving energy spectrum uniformity of a tellurium-zinc-cadmium ray detector, which comprises a tellurium-zinc-cadmium wafer, a plurality of K-type thermocouples, a temperature sampling system and a heating unit, and is characterized in that the annealing device comprises a barrel body and a protective cover, and the edge area of the barrel body is provided with a plurality of temperature measuring channels from top to bottom; the middle area of the barrel body is divided into a plurality of cavities by a plurality of partition plates; a hollow structure is arranged at the bottom of the barrel body; a gap is reserved between the temperature measuring channel and the cavity, the depth of the temperature measuring channel is equal to that of the barrel body, and a gap is reserved between the hollow structure and the temperature measuring channel; the protective cover is in lap joint with the upper end of the barrel body, a plurality of first holes aligned with the temperature measuring channels are formed in the edge of the protective cover, and the diameter of the first holes is the same as that of the temperature measuring channels. According to the invention, the wafers are vertically placed in the cavity, and the thermocouple is inserted into the temperature measurement channel, so that the annealing process is accurately controlled, mutual friction and cross contamination of the wafers are avoided, external contamination is avoided, and the reliability and repeatability of the annealing process are ensured.
Owner:KUNMING INST OF PHYSICS

A reactor system and method for pyrolysis recycling of fibers from waste fan blades

The application belongs to the technical field of waste fan blade pyrolysis recycling, and particularly discloses a waste fan blade pyrolysis recycling fiber reactor system and method, which comprises: sequentially arranged loading, pyrolysis and cooling sections, and automatic cut-off doors are arranged between the pyrolysis section and the loading section and between the pyrolysis section and the cooling section; tracks are respectively arranged in the loading, pyrolysis and cooling sections, the cut fan blades are loaded in the carrier vehicles, the carrier vehicles loaded with the fan blades are connected in series, and the carrier vehicles can move along the tracks between the loading, pyrolysis and cooling sections. The application adopts a three-section independent structure to realize the loading pyrolysis, fiber decarburization and product cooling process of the waste fan blades; the pyrolysis section can intermittently convey the carrier vehicles, the reaction time can be controlled, the pyrolysis of the fan blades can be ensured to be complete, and the blades with insufficient pyrolysis can be re-pyrolyzed through the carrier vehicles.
Owner:SHANDONG TIANLI DRYING TECHNOLOGY AND EQUIPMENT CO LTD