首页|3D Numerical Analysis of the Arc Plasma Behavior in a Submerged DC Electric Arc Furnace for the Production of Fused MgO
3D Numerical Analysis of the Arc Plasma Behavior in a Submerged DC Electric Arc Furnace for the Production of Fused MgO
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A three dimensional steady-state magnetohydrodynamic model is developed for the arc plasma in a DC submerged electric arc furnace for the production of fused MgO. The arc is generated in a small semi-enclosed space formed by the graphite electrode, the molten bath and unmelted raw materials. The model is first used to solve a similar problem in a steel making furnace, and the calculated results are found to be in good agreement with the published measurements. The behavior of arcs with different arc lengths is also studied in the furnace for MgO production. From the distribution of the arc pressure on the bath surface it is shown that the arc plasma impingement is large enough to cause a crater-like depression on the surface of the MgO bath. The circulation of the high temperature air under the electrode may enhance the arc efficiency, especially for a shorter arc.
numerical simulationDC electric arc furnacearc plasmatemperature fieldflow field
王振、王宁会、李铁、曹勇
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School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
电弧等离子体 直流电弧炉 三维数值分析 电力生产 电熔镁 行为 模型开发 石墨电极
National High Technology Research and Development Program of China
NETL
NSTL
万方数据
维普
