材料与冶金学报2025，Vol.24Issue(4)：322-331,10.DOI:10.14186/j.cnki.1671-6620.2025.04.002
镍铁矿热炉熔炼过程中的电磁-热-组分多物理场耦合
Electromagnetic-thermal-component multi-physical field coupling in the smelting process of ferronickel submerged arc furnace
摘要
Abstract
A transient three-dimensional mathematical model of submerged arc furnace was established to analyze the interaction mechanism of electromagnetic-thermal-component multi-physical field during the smelting process of ferronickel submerged arc furnace.The user-defined functions(UDFs)was utilized to simultaneously solve the electrothermal conversion,multiphase heat and mass transfer,and reduction reaction within the submerged arc furnace.The distribution law of multi-physical field at different times during the smelting process of ferronickel submerged arc furnace was revealed,and the conversion rates of nickel oxide and iron oxides at different times were also studied.The result shows that the distribution of multi-physical field at different times exhibits coupling and non-uniformity.Due to the influence of temperature distribution,the reduction reactions of nickel oxide and iron oxides are mainly concentrated in the high-temperature area from below the arc to the bottom of the charge layer,as well as between the three arcs.When the smelting time reaches 40 min,the reaction volumes of nickel oxide and iron oxides are 138.7 m3 and 43.1 m3 respectively.Meanwhile,the reaction masses are 2.542 t and 13.332 t respectively,and nickel oxide exhibits a higher reaction rate compared to iron oxides.关键词
矿热炉/多物理场/还原反应Key words
submerged arc furnace/multi-physical field/reduction reaction分类
矿业与冶金引用本文复制引用
杨祎晗,刘鹏,李茂生,丁佳文,兰孝宇..镍铁矿热炉熔炼过程中的电磁-热-组分多物理场耦合[J].材料与冶金学报,2025,24(4):322-331,10.基金项目
辽宁省教育厅面上基金项目(LJKMZ20220775). （LJKMZ20220775）
