三电极矿热电炉电磁场、流场和温度场的数值模拟  

Numerical Simulation of Electromagnetic Field, Flow field and Temperature Field in Arc Furnace with Three Electrodes

作　　者：张思弘 姚心[1] 郭天宇 李东波[1] ZHANG Si-hong;YAO Xin;GUO Tian-yu;LI Dong-bo

机构地区：[1]中国恩菲工程技术有限公司,北京100038 [2]北京理工大学机电学院,北京100081

出　　处：《有色设备》2022年第6期48-54,共7页Nonferrous Metallurgical Equipment

摘　　要：为掌握三电极矿热电炉熔池在电磁搅拌作用下的流动和传热机制,采用多物理场耦合仿真模型,对熔池内电磁场、流场和温度场进行模拟分析,并结合试验结果对模拟方法进行了验证。结果表明:熔池内磁感应强度、电磁力和焦耳热密度的最大值均出现在电极区域,这是熔池内电极附近区域温度最高的主要原因;施加电磁力后,炉体壁面附近熔体出现局部速度增大的现象,增加了高温熔体对壁面的侵蚀。通过模拟所得温度场计算结果与试验结果吻合良好,最大误差不超过13.66%,证明了该模拟方法的可靠性。In order to master the flow and heat transfer mechanism of the molten pool of the arc furnace with three electrodes under the action of electromagnetic stirring, the electromagnetic field, flow field and temperature field in the molten pool were simulated and analyzed by using the multi-physical field coupling simulation model, and the simulation method was verified by combining the test results. The results show that the maximum values of magnetic induction intensity, electromagnetic force and Joule heat density in the molten pool occur in the electrode area, which is the main reason why the highest temperature in the area is near the electrode in the molten pool;After the electromagnetic force is applied, the local velocity of the melt near the furnace wall increases, which facilitates the corrosion of the high-temperature melt to the wall. The temperature field calculated by simulation is in good agreement with the test results, and the maximum error is not more than 13.66%, which proves the reliability of the simulation method.

关 键 词：矿热电炉 数值模拟 多物理场耦合 

分 类 号：TF806[冶金工程—有色金属冶金]