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Numerical simulation of coupling multi-physical field in electrical arc furnace for smelting titanium slag

Journal of Iron and Steel Research International 2023年第11期30卷 2194-2209页

作者： He-nan Cui Tao Li Chen-guang Bai Min Tan Yu-lin Zhu College of Materials Science and Engineering Chongqing UniversityChongqing400044China Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and Advanced Materials Chongqing UniversityChongqing400044China College of Metallurgy and Energy North China University of Science and TechnologyTangshan063210HebeiChina

The smelting reduction process of the ilmenite in an electric arc furnace(EAF)is a commonly used technology for producing titanium slag in the *** has particular significance to analyze the velocity-temperature-electromagnetics multi-physical field in an EAF for improving its productivity and reducing energy consumption.A transient three-dimensional mathematical model was developed to characterize the flow,heat transfer,and electromagnetic behavior in a titanium slag *** describing the electromagnetic field and its effects on velocity and temperature distribution in the furnace,magnetohydrodynamic equations and conservation equations for mass,momentum,and energy were solved simultaneously by compiling the user-defined function *** numerical model was verified by comparing with the literature *** results indicate that the Lorentz force is the main driving force of the velocity and temperature ***,the influence of input current and location of electrodes on the multi-physical field distribution was also *** is found that the appropriate range of input current and diameter of pitch circle are about 30,000 A and 3000-3500 mm,*** mathematical model established can characterize the multi-physical field more accu-rately than before,which can provide valuable guidance for the operation improvement and design optimization of the EAF for producing titanium slag.

关键词： Electric arc furnace Titanium slag Magnetohydrodynamic Multi-physical field user-defined function

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