电极插入深度对矿热炉加热影响的CFD分析

CFD Analysis on the Influence of Electrode Insertion Depth on Submerged Arc Furnace Heating

为了探究三相交流电矿热炉在稳定工作时的炉内工作情况,建立了48 MW矿热炉的三维有限元模型,研究了不同电极插入深度对于炉内温度场分布的影响,并对熔池内的融化凝固情况进行了分析。结果表明:熔池内最高温度在电极下方的坩埚区内;固液两相的分布情况与温度场梯度变化有关;随着电极插入深度的增加,熔池内部的最高温度会不断降低。

In order to explore the working condition of three-phase AC submerged arc furnace in stable operation,a three-dimensional finite element model of 48 MW submerged arc furnace was established,the influence of different electrode insertion depth on the temperature field distribution in the furnace was studied,and the melting and solidification in the molten pool was analyzed.The results showed that the highest temperature in the molten pool was in the crucible area below the electrode;The distribution of solid-liquid two phases was related to the gradient of temperature field;With the increase of electrode insertion depth,the maximum temperature in the molten pool continued to decrease.