电工技术学报2016，Vol.31Issue(24)：79-87,9.
用于高效冶炼氧化镁的双电极直流电弧炉的仿真与实验
Simulation and Experiment Investigation on a Dual-Electrode DC Arc Furnace with High Smelting Efficiency for MgO Production
摘要
Abstract
A 3 000kV·A three-phase AC arc furnace for MgO production has been elaborately refitted into a dual-electrode DC arc furnace with the same capacity. The relationship between the output voltage and the maximum arc length in different smelting currents has been studied. Meanwhile, the molten bath temperature field distribution was calculated by three-dimensional finite element simulation analysis method. High purity MgO crystals could be produced with the converted arc furnace. Additionally, the morphology of the molten MgO lump was similar to a tensile body with an elliptical cross section, which is consistent with the simulation results. Finally, the MgO smelting production data of DC arc furnace were compared with the data of AC arc furnace. The comparison results indicated that the dual-electrode DC arc furnace for smelting MgO has obvious advantages over the traditional three-phase AC arc furnace, from the views of energy consumption per ton, electrode loss as well as crystal purity. This paper has provided theoretical guidance and basis for the production of MgO with dual-electrode DC arc furnace.关键词
直流电弧炉/氧化镁/单吨能耗/电极损耗Key words
DC arc furnace/magnesium oxide/energy consumption per ton/electrode loss分类
信息技术与安全科学引用本文复制引用
付友,王振,王宁会..用于高效冶炼氧化镁的双电极直流电弧炉的仿真与实验[J].电工技术学报,2016,31(24):79-87,9.基金项目
国家国际科技合作专项（2014DFR50880），中央高校基本科研业务费专项资金（DUT12RC（3）82、DUT16QY35）和国家自然科学基金（51604059）资助项目。 （）
