156 results about "Molten bath" patented technology

The invention relates to the technical field of metal composite materials, in particular to a metal composite material production process dynamic simulation method based on digital twinning. Comprising the following steps: constructing a digital twin model comprising a physical entity layer, a virtual model layer and a connection layer, and establishing a Fourier neural operator model embedded with a Navier Stokes equation and a heat conduction equation constraint; real-time molten pool monitoring data are mapped into model input through a connecting layer, and advanced time step deduction is executed by using a deep learning model to predict the state of a molten pool; based on the differentiable characteristic of a physical information neural operator, calculating the gradient of a prediction state and an ideal target by using an automatic differential algorithm, generating a process parameter field through reverse iteration updating, and discretizing the process parameter field into a galvanometer control instruction; and when the risk of aggregation of the reinforced phase particles is predicted to exist, automatically generating a swing scanning strategy to realize active suppression. The method gives consideration to simulation precision and real-time performance.

The invention provides a nickel-based rare earth composite powder material for high-speed laser cladding and a preparation method of a nickel-based rare earth composite coating, and relates to the technical field of laser cladding and metal surface modification. The nickel-based rare earth composite coating takes Inconel 625 nickel-based alloy as a matrix phase material; a trace amount of rare earth oxide Y2O3 is introduced into a powder system to serve as a second phase enhancing component, and the material is prepared and formed at a time under the condition of a high-speed laser cladding process; in the high-speed laser cladding process, due to high scanning speed, low heat input per unit length and high cooling rate, metal liquid in a molten pool has the characteristic of rapid solidification; the rare earth oxide Y2O3 can stably exist in a molten pool, the particle surface of the rare earth oxide Y2O3 provides a large number of heterogeneous nucleation cores for the alloy solidification process, meanwhile, grain growth is restrained through the grain boundary pinning effect, and therefore the solidification structure form of the nickel-based cladding coating is remarkably improved.

The invention relates to a metal additive manufacturing three-dimensional temperature field Gaussian process prediction method, belongs to the technical field of material science, and particularly relates to a metal additive manufacturing three-dimensional temperature field prediction method. Logarithmic transformation is adopted to preprocess a temperature field, and prediction difficulty caused by extreme gradient near a molten pool is avoided; dividing the overall computational domain into a plurality of sub-domains by adopting a domain decomposition strategy to reduce the problem dimension; for each sub-domain, further combining singular value decomposition to extract a temperature field reduced-order base; establishing a local Gaussian process regression model based on a Maren kernel function and carrying out parallel training so as to establish rapid mapping from process parameters to reduced-order output; during online prediction, efficient and accurate prediction of a complete temperature field is realized through parallel calculation and full-field assembly of each local model.

The invention belongs to the technical field of metal additive manufacturing, and particularly relates to a metal additive manufacturing multi-field coupling problem numerical simulation method which is suitable for powder scale heat-fluid-solid coupling simulation in the metal additive manufacturing powder melting, flowing, solidification and deformation processes. The method is based on a superposition refinement thought, and a computational domain of a separation material is a dynamic superposition region of a basic region. The basic area is used for solving a macroscopic thermal-solid coupling process, the dynamic superposition area is used for solving a mesoscopic thermal-fluid-solid coupling process, and interfaces of the two areas are dynamically and fixedly connected, contacted and coupled. According to the method, the computing resources can be effectively distributed to the molten pool and important areas nearby the molten pool, and the computing efficiency is greatly improved.

Source: FR2832733 A1 Video sensors are used for controlling melting of aluminum in a furnace by producing images of the bath surface or the inner surface of the furnace walls. Melting of aluminum in a furnace comprises: (a) introducing solid aluminum into the furnace; (b) melting the aluminum to form a molten bath; (c) production of images of the bath surface or of the inner surface of the furnace (2) walls; (d) treating these images to identify the presence of solids or the formation of oxides on the bath surface or for identifying the presence of hot spots or hot zones or zones having a certain minimal temperature on the fumace walls; and (e) modifying at least one fumace operating condition as a function of this treatment of the images. Independent claims are also included for the following: (a) a device for detecting the surface state of a bath of aluminum or the state of the furnace walls in an aluminum melting furnace; and (b) an aluminum melting furnace incorporating this detection device.

The invention relates to the technical field of electric arc melting furnace control, and discloses a water-cooled furnace wall electric arc melting furnace system and method. The method comprises the steps of collecting a smelting furnace operation parameter set in real time; performing multi-region thermal load analysis on the water-cooled wall temperature gradient data to generate a thermal load distribution matrix, and performing harmonic characteristic decomposition on the arc current waveform data to generate a current harmonic characteristic set; performing space-time alignment matching processing on the two to form a smelting process coupling characteristic pattern; performing joint feature extraction on the molten pool liquid level fluctuation data and the raw material component spectral data to generate a melt state vector; inputting the coupling characteristic pattern and the melt state vector into a dynamic regulation and control decision network, and generating a multi-parameter cooperative control strategy comprising a water-cooling flow rate regulation instruction, an arc power regulation instruction and a feeding rate correction instruction; and according to the strategy, synchronous execution operation of water cooling system pump valve linkage control, arc generator impedance matching adjustment and raw material conveying belt frequency conversion speed regulation is triggered.

The application discloses an alloy vacuum separation furnace, which comprises a runner, a separation chamber and a mold system; the separation chamber comprises an isolation box, and an upper molten pool, an inclined part and a lower molten pool are arranged in the isolation box from top to bottom. The number of the inclined part is more than one, and the inclined part has an inclined surface. Alloy melt to be separated is poured into the upper molten pool through the runner; the upper molten pool and the lower molten pool are provided with plug parts; the melt in the upper molten pool can flow into the inclined part downstream of the upper molten pool by opening the plug part of the upper molten pool, and then flow into the lower molten pool through the inclined part. The mold system comprises a preparation chamber, a second isolation valve, a pouring chamber, a third isolation valve and a discharge chamber which are sequentially connected, and the pouring chamber is connected with the separation chamber. The melt in the lower molten pool can be quantitatively poured into a mold in the pouring chamber. The alloy vacuum separation furnace is continuously worked through the inclined part, the production efficiency is improved, and the alloy vacuum separation furnace is suitable for large-batch continuous production. The application further discloses an alloy separation method implemented by using the alloy vacuum separation furnace and a copper and zinc material.

The utility model discloses a natural gas melting furnace for melting aluminum ingots, and belongs to the technical field of metal melting equipment. The melting furnace comprises a box body and a furnace body, a liquid oxygen storage tank, a VPSA oxygen generator and a waste gas treatment box are integrated in the box body, and the liquid oxygen storage tank is connected with an oxygen supply pipeline through a vaporizer; the furnace body shell adopts a gradient refractory layer structure; the oxygen supply pipeline is of a Y-shaped parallel structure, a flame arrester and a dynamic pressure balance valve are arranged in the oxygen supply pipeline, and the oxygen flow is adjusted through linkage of a pressure sensor and a controller. A water-cooling observation window is arranged on the inner wall of the furnace body, and a thermal infrared imager is installed on the outer side to monitor the temperature of a molten pool and feed back and control combustion power. According to the utility model, efficient melting, safe oxygen supply and accurate temperature control are realized through structure optimization, and the device is suitable for continuous melting scenes of aluminum ingots.

The invention relates to the technical field of glass melting furnaces, in particular to an immersed combustion glass pre-melting system and a glass melting furnace feeding method.The immersed combustion glass pre-melting system comprises a plurality of pre-melting units separately arranged at an inlet of a main melting furnace; the melting temperatures of the plurality of pre-melting units are different, so that the glass liquid entering the main melting furnace generates a transverse temperature gradient for convection homogenization. Aiming at the problem that a pre-melting system in the prior art easily generates a flowing dead zone at a corner position, a molten pool is divided into a plurality of discrete pre-melting units, the volume of a single molten pool is reduced, so that the problem of non-uniform temperature conduction in the molten pool is avoided, and meanwhile, the pre-melting temperature of each pre-melting unit is controlled to have a certain difference, so that the pre-melting efficiency is improved. Therefore, when feeding is carried out on the main melting furnace, a specific temperature gradient is generated in the main melting furnace to enhance convection homogenization of molten glass among the pre-melting units, and the temperature and the distribution uniformity of raw materials are improved.

The invention relates to a method for producing a weld seam, which extends along a closed trajectory (54), by means of a laser welding machine (10) for connecting a first workpiece (12) and a second workpiece (14) together in a fluid-tight manner, comprising: providing the first workpiece (12) and the second workpiece (14), wherein at least one of the two workpieces (12, 14) is formed from a die-cast aluminium material or from a wrought aluminium alloy; directing a first laser beam (22) of the laser welding machine (10) and a second laser beam (24) of the laser welding machine (10) simultaneously onto the two workpieces (12, 14) such that two separate molten baths (58) are formed, in particular are formed simultaneously; and successively traversing at least one section (62) of the trajectory (54) with the first laser beam (22) and the second laser beam (24) such that the section (62) is traversed a first time by the first laser beam (22) and a second time by the second laser beam (24).

The invention relates to the field of metallurgy, and discloses a large-size maraging stainless steel bar and a preparation method thereof, the diameter of the bar is larger than or equal to 300 mm, and the method comprises a vacuum induction melting stage, a vacuum consumable remelting stage, a fast forging cogging stage and a precision forging forming stage; wherein the vacuum consumable remelting stage comprises an arcing stage, a stable smelting stage and a filling smelting stage; in the arc starting stage, a molten pool is formed by adopting a current of 8-12 kA; in the stable smelting stage, the smelting speed is 4.2-4.8 kg / min, the molten drop is 3-5 s <-1 >, the molten drop short-circuit time is 0.6-0.8 s, and inert gas is started to be filled for cooling after smelting is conducted by the preset weight; and in the filling smelting stage, inert gas filling is stopped, and the current and the melting speed are controlled to descend in a stepped mode. According to the method, the uniformity of components and structures can be improved, so that the mechanical property of the large-size maraging stainless steel bar is improved.

The present application relates to the technical field of steel metallurgy, and discloses a 5+1 converter oxygen lance system with efficient molten pool stirring and deep dephosphorization function, which comprises an oxygen lance body, a nozzle body and a group of spray holes arranged on the nozzle body, the group of spray holes comprises one central main spray hole and five peripheral spray holes, the five peripheral spray holes are uniformly distributed on the same circle with the central axis of the nozzle as the center, and the five peripheral spray holes and the central main spray hole form a 5+1 layout; the axis of the central main spray hole coincides with the central axis of the oxygen lance body or forms an angle of 0-3 degrees; the angle between the axes of the five peripheral spray holes and the central axis of the oxygen lance body is 10-18 degrees; the oxygen lance system further comprises an independent gas path control system, and the central main spray hole and the peripheral spray holes are respectively connected with independent gas supply pipelines; the present application adopts a composite flow field reconstruction principle to improve the stirring rate, enhances slag-gold emulsification, improves the dephosphorization reaction rate, realizes the collaborative optimization of slagging and dephosphorization through the synergy of zoned slagging and temperature control.

The invention is in the field of pyrometallurgy and describes a process for the recovery of lithium by fuming. The process comprises smelting Li-ion batteries or their waste in a furnace with slag formers, resulting in a molten bath with distinct alloy and slag phases, and flue dust. Notably, at least 30% of the lithium is transferred to the flue dust under the chosen conditions without adding alkali or earth alkali halides. Li can then be recovered from the flue dust, valuable metals, such as Co and / or Ni, can be recovered from the alloy, and the remaining slag can be used in new smelting or Li- fuming operations.

This invention belongs to the field of steel deoxidation technology, specifically a method for steel deoxidation, comprising the following steps: during the tapping process of a converter, when the molten steel reaches a preset position on the ladle, a carbonaceous deoxidizer is added to the surface of the molten steel in multiple batches for deoxidation; wherein the carbonaceous deoxidizer is calcined coal, and the particle size of the calcined coal is 2-5 mm. This invention, by selecting a specific carbon source with a specific particle size and adopting a strategy of adding it dynamically in batches, effectively avoids a surge in local carbon and oxygen concentration, fundamentally eliminating the rapid rise of the molten pool surface and steel splashing, thus ensuring production safety; by using calcined coal with specific purity and strength, its anti-pulverization ability and low impurity characteristics reduce the reaction runaway and oxide inclusion residues caused by secondary pulverization, significantly reducing smelting costs while ensuring high cleanliness and deoxidation efficiency.

The application discloses a low copper loss double-side blown bath smelting method and belongs to the technical field of copper pyrogenic smelting. The method constructs a vertical oxygen potential gradient in the same smelting furnace: 70%-85% of oxygen-rich air is blown into the tuyere at the lower part of the furnace body to form a strong oxidation smelting zone; and a reducing medium such as natural gas or pulverized coal is sprayed into the slag layer at the upper part of the furnace body to form a weak reduction clarification zone. The amount of the reducing medium sprayed is dynamically adjusted by on-line monitoring of the CO content in the flue gas or the Fe3O4 content in the slag, and the Fe3O4 content in the slag is controlled to be 3%-6%. The method efficiently reduces Fe3O4 in the slag into FeO, significantly reduces the viscosity of the molten slag, and improves the slag-ice-copper separation condition, so that the copper content in the discarded slag is stably reduced from more than 1.8% in the conventional method to less than 1.3%, and the metal recovery rate is improved. Meanwhile, the method realizes integration of smelting and tempering, simplifies the process, reduces energy consumption, and enhances the adaptability to complex raw materials.

The utility model discloses a kind of feeding structure of plasma melting furnace, and plasma melting furnace includes hearth, graphite cathode and molten pool liquid level of setting in hearth, the feeding structure includes feeding channel, feeding channel is obliquely arranged in the side wall of hearth, the inclination angle of feeding channel is set as 40 °±A, A is angle allowance, the plasma melting furnace of the utility model can greatly improve the distribution characteristics and movement process of ash slag particles by improving the height and angle of feeding port, improve ash slag melting reaction process and the solidification effect of molten slag on heavy metal, improve material melting rate so that it is fully utilized.

The invention provides a steel pipe electric arc welding device, which belongs to the technical field of steel pipe welding, and comprises a welding table, two groups of steel pipe clamping assemblies, a first driving assembly, a second driving assembly, a welding rod clamping assembly and a third driving assembly, the two steel pipe clamping assemblies are rotationally installed on the upper portion of the welding table and distributed oppositely, the two steel pipe clamping assemblies are used for clamping two steel pipes correspondingly, and the first driving assembly is arranged on the upper portion of the welding table and used for driving the two steel pipe clamping assemblies to rotate synchronously. The welding rod clamping assembly is arranged between the two steel pipe clamping assemblies. Compared with the prior art, automatic electric arc welding of the two steel pipes can be achieved, after the welding rods rotate by one circle around the two steel pipes, the remaining welding rods can be driven to be automatically and rapidly separated from a molten pool, and therefore the adhesion phenomenon of the welding rods is avoided, and the welding quality is improved.

This invention discloses a visual recognition-based furnace condition detection system and method, relating to the field of smelting furnace detection. The method includes: obtaining registered brightness-normalized visual data; combining the components into a multi-basic wavelet decomposition feature tensor; inputting the multi-basic wavelet decomposition feature tensor into a dual-path Vision-KAN coding network to obtain latent space feature representations of the molten pool structure and dust disturbance; constructing a non-uniform dust density estimation model based on the dust disturbance latent space feature representations to obtain latent space feature representations of the molten pool structure and dust disturbance after gating; generating a three-phase interface enhancement feature tensor; combining inverse wavelet transform to output a reconstructed image of the pure molten pool, a segmented image of the molten pool boundary, a liquid level line, and an abnormal splash risk map; and generating a smelting condition assessment result based on the abnormal splash risk map. This invention improves the accuracy and robustness of molten pool structure recovery under complex operating conditions.

The invention discloses a method, equipment and medium for determining the size of an evaporation boat molten pool, and relates to the technical field of film plating. The method comprises the steps that the dry burning voltage and the dry burning current of an evaporation boat are determined; wire feeding parameters of the evaporation boat are obtained, a metal wire is conveyed to the evaporation boat according to the wire feeding parameters, the metal wire fed into the evaporation boat enters a molten state under the action of heat generated by the evaporation boat, and the evaporation boat containing a molten pool is formed; the molten pool voltage and the molten pool current of the evaporation boat containing the molten pool are determined, and the electrode heat release rate factor of the evaporation boat is calculated according to the dry burning voltage, the dry burning current, the molten pool voltage and the molten pool current; the electrode heat release rate factor of the evaporation boat is used for determining the molten pool size of the evaporation boat. According to the method, the electrode heat release rate factor of the evaporation boat is calculated according to the voltage and current of the evaporation boat in the dry burning state and the voltage and current of the evaporation boat containing the molten pool formed after the evaporation boat enters the molten state, and then the size of the molten pool of the evaporation boat is rapidly and accurately determined in a numerical value quantification mode.

The invention discloses a glass kiln and a using method thereof, and relates to the technical field of glass kilns, the glass kiln comprises a furnace body, molten pools are arranged in the furnace body side by side, a partition pool wall is arranged between every two adjacent molten pools, a heat storage chamber is arranged on the side face of the molten pool on the outermost side, and the heat storage chamber is communicated with the molten pools through a small furnace. When the glass furnace is used, raw materials with different colors are put into the molten pools in the furnace body, the small furnace works to convey fuel and combustion-supporting air in the heat storage chamber to the upper parts of the molten pools for combustion work, so that glass is melted, the transverse flame melting furnace periodically performs reversing combustion, and the temperatures of the upper sides of the two molten pools are adjusted; therefore, the glass in the two molten pools is accurately heated and molten, stable melting work of the glass with different colors is guaranteed, and the fixed asset investment cost and the operation cost of a unit product are remarkably reduced.

This invention discloses a method and apparatus for determining oxygen lance and bottom-blowing stirring control parameters based on the molten pool state, belonging to the field of electric arc furnace steelmaking process optimization and control technology. The corresponding method includes: determining the current smelting stage based on the furnace noise spectrum, molten pool temperature, and flue gas composition; the oxygen lance control parameters include: molten pool carbon content, molten pool oxygen demand, and the hydrogen-oxygen ratio in the accompanying flow; determining the molten pool carbon content and molten pool oxygen demand based on the flue gas composition, total mass of molten steel, and total flue gas volume; and selecting the hydrogen-oxygen ratio in the accompanying flow and the bottom-blowing stirring control parameters based on the current smelting stage. This invention effectively solves the problems of low reaction efficiency, high energy consumption, and unstable endpoint control caused by the inability to adjust furnace wall oxygen supply and bottom-blowing stirring in real time according to the molten pool reaction state during existing electric arc furnace smelting processes.

This invention provides an electroslag welding apparatus and a welding method thereof. The electroslag welding apparatus includes a workpiece body and a power source. A slag pool is disposed within the workpiece body, and a molten pool is disposed below the slag pool. Metal slag in the slag pool accumulates below the molten pool after passing through it, forming a weld. A liquid-cooled forming slider is disposed around the periphery of the molten pool. The height of the molten pool increases with the accumulation of the weld, and the height of the liquid-cooled forming slider also increases with the molten pool. Furthermore, a first conductive path is provided between the slag pool and the positive electrode of the power source, a second conductive path is provided between the weld and the negative electrode of the power source, and a third conductive path is provided between the liquid-cooled forming slider and the negative electrode. The electroslag welding apparatus provided by this invention can solve the problem of poor weld formation quality in the prior art.

An apparatus for forming a cladding layer on a surface of a component, characterized by a preheating section for preheating a filler material composed of a cemented carbide in a rod shape to a softening temperature, a heat source for applying heat for forming a molten pool to the surface of the component, and a delivery section for delivering the preheated filler material to the molten pool, the filler material being delivered in a softened state without being molten before being delivered into the molten pool. A method for forming a cladding layer on a surface of a component, comprising providing a filler material composed of a cemented carbide in a rod shape, softening the filler material composed of a cemented carbide in a rod shape, heating the surface of the component to generate a molten pool on the surface of the component, and delivering the filler material in a softened state without being molten before being delivered into the molten pool.

The utility model discloses a molten pool stirring mechanism of a glass melting furnace, and relates to the technical field of glass production, the molten pool stirring mechanism comprises a melting furnace body, a box body, a fixed lug seat and a fixed support leg, the inner arc wall of the bottom of the box body is rotatably connected with a turntable, a driving mechanism is arranged in the box body, and the driving mechanism comprises a fixed frame which is rotatably connected to the center of the top of the turntable; according to the utility model, through the matching of the driving mechanism, the limiting frame, the incomplete gear and other structures, the gear can be meshed with teeth on different sides of the incomplete gear, so that the rotating direction of the stirring rod is periodically changed, the fixed flowing mode of molten glass in a molten pool is broken, the molten glass can be more fully mixed, and the mixing efficiency is improved; the melting time is shortened, ingredients can be more uniformly dispersed and heated in the melting process in a periodic direction-changing stirring mode, the agglomeration phenomenon is avoided, the overall quality of molten glass is improved, and the defects such as bubbles are reduced.

The invention relates to the field of waste treatment. According to the waste treatment device and method based on argon plasma, a high-temperature pretreatment furnace is used for containing high-temperature waste and collecting dust generated by the high-temperature waste, the top of the high-temperature pretreatment furnace is provided with a conveying pipe, and the bottom of the high-temperature pretreatment furnace is connected with an electric furnace molten pool; the pneumatic device stores argon, communicates with the transmission pipe, and pneumatically transmits dust to the electric furnace molten pool through the argon; a molten pool pipe is arranged below the electric furnace molten pool and internally provided with a graphite electrode and an adjustable baffle; the collecting tank is connected with a molten pool pipe and used for collecting metal blocks and glass crystals generated after treatment; the conveying pipe is connected with the high-temperature pretreatment furnace and the collecting tank and conveys high-temperature waste in the tank. The device optimizes component layout, a high-temperature pretreatment furnace is directly connected with an electric furnace molten pool to be matched with argon conveying to reduce leakage, a baffle controls dust retention time, a graphite electrode ensures sufficient reaction, residues are transferred in time, and efficiency is improved; intelligent regulation and switchable pretreatment are arranged to adapt to different dust; the cost is reduced through argon recovery, solid products are easy to collect, the service life is prolonged through the high-temperature-resistant coating, and high efficiency, adaptability, economy and environmental protection are all considered.

The present application relates to a kind of compound reinforced smelting furnaces of staggered top blowing and double side blowing synergistic nonlinear regulation, including furnace body, side blowing lance and top blowing lance.Two rows of side blowing porous channel lance are symmetrically arranged in slag layer of molten pool, and oxygen, oxygen-enriched air or fuel mixture is introduced to form transverse disturbance airflow to drive molten pool main circulation.Top of the furnace is provided with staggered interval arrangement Laval structure top blowing lance and top blowing lance with cyclone.Laval lance is located above slag layer, and provides high-speed blowing to enhance reaction driving force;Rotary flow spray gun is immersed in the upper part of slag layer, and rotary airflow is generated by multi-stage cyclone to improve mixing efficiency.Both can be dynamically nonlinear synergistic regulation according to molten pool flow regime and reaction path, effectively compensate the airflow blind area of side blowing in the center area of the furnace, eliminate the intermediate dead zone, thereby strengthen the mixing uniformity of molten pool, reaction rate and energy utilization rate.The present application has reasonable structure, high airflow transport efficiency, and is suitable for non-ferrous metal smelting with high reaction intensity and high uniformity requirement.

The disclosure discloses a method of operating an electric arc furnace, the method comprising capturing, from at least one facility of a steel mill, a heated metallurgical gas comprising water and carbon monoxide; conducting, by a reactor supply line, said metallurgical gas to a reactor; transforming, by a treatment of said metallurgical gas within said reactor, the carbon monoxide and water into hydrogen and carbon dioxide according to a water-gas shift reaction; and subsequently separating said hydrogen by a separation device. The method is characterized in that it further comprises providing an iron-bearing material, which comprises iron mainly in the form of iron oxide, to the electric arc furnace; at least partially melting the iron-bearing material to obtain a molten bath; conducting, by a furnace supply line, said hydrogen to the electric arc furnace, which is arranged downstream of the furnace supply line; and injecting, by a plurality of hydrogen injection devices, said hydrogen into said electric arc furnace, such that said hydrogen reacts as a reducing agent for reducing iron oxide in the molten bath during a smelting operation of the electric arc furnace.

This invention relates to the field of top-blown smelting technology, and provides a feeding control system and method for a top-blown furnace. The feeding control system includes a mixing and blowing device, a top-blown furnace, a spray gun, and a control unit. Considering the influence of factors such as the blowing pressure of the material, the immersion depth of the spray gun, and the actual conditions of the smelting pool on the material injection pressure of the spray gun in the top-blown furnace, the system monitors the injection pressure entering the spray gun in real time and compensates for the injection pressure by adjusting the material conveying pressure to ensure continuous material conveying. However, since the pressure compensation process affects the preset feeding speed, it is necessary to appropriately adjust the material flow rate. That is, the adjustment of the injection pressure affects the material flow, and the material flow rate needs to be appropriately adjusted to reach the preset flow rate to balance the pressure and flow rate, thereby providing stable and uniform material conveying and improving smelting efficiency while meeting the requirements of metal smelting reaction.

This application relates to the field of waste incineration, particularly a magnetic co-incineration system for high-viscosity alkaline organic waste. It includes a treatment, concentration, drying, and magnetization section; an ultrasonic resonance magnetization device; a reverse magnetic conveying device; and a magnetic alkali incineration section. The incinerator top of the magnetic alkali incineration section is equipped with an auxiliary magnetic field and an ignition burner. The upper part of the furnace is the main combustion zone, and the lower part is an electric fusion pool for the auxiliary combustion zone. From top to bottom, the upper sidewall of the main combustion zone is equipped with a solid waste feed chute, a primary annular tuyer, a waste liquid spray gun, and a secondary annular tuyer. A burnout annular tuyer is located in the middle of the sidewall of the main combustion zone. By further concentrating the concentrated wastewater to a solid state, the overall calorific value of the material is increased, allowing the material itself to reach the designed incineration temperature. Addressing the problem of difficult conveying due to high viscosity, this application magnetizes the material before it enters the magnetic field for conveying. Inside the incinerator, the combined effect of the magnetic field and magnetic combustion-supporting powder extends the incineration time, ensuring complete incineration of the waste.

The invention relates to the technical field of data processing, in particular to an electric arc furnace flat molten pool smelting stage temperature feedback control method and system. The method comprises the following steps: periodically extracting an arc force index and a vibration response index of each channel according to a current signal and a vibration signal of each channel; the two forms a data pair, and the data pair is stored in a historical data queue and updated; for each channel, judging whether the dispersion degree of the arc force index in the queue meets a validity condition or not; if yes, according to all data pairs in the queue, fitting to obtain a vibration force transmission ratio; determining the reliability of the vibration signal according to the arc force index and the vibration response index in the queue; determining the real-time electric energy thermal efficiency according to the preset efficiency parameter, the transmission ratio and the credibility; the real-time electric power is corrected based on the real-time electric energy heat efficiency, and the net heating power of the molten steel is determined in combination with the chemical reaction heat power and the heat loss power; cumulative integration is carried out based on the molten steel net heating power, the molten steel prediction temperature is determined, and therefore the temperature prediction accuracy is improved.