稀土电解槽内电-热场耦合数值模拟研究  

Numerical Simulation Study of Electric-Thermal Field Coupling in Rare Earth Electrolytic Cell

作　　者：刘中兴[1] 冯猛[1] 伍永福[1] 李言钦[2] 官卜瑞 刘子轩 

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]郑州大学化工与能源学院,河南郑州450001 [3]北京科技大学工程技术研究院,北京100083

出　　处：《稀有金属与硬质合金》2017年第5期11-16,共6页Rare Metals and Cemented Carbides

基　　金：国家自然科学基金项目(51164025);内蒙古自然科学基金项目(2011MS0703)

摘　　要：针对3kA稀土Nd电解槽,运用数值模拟软件COMSOL,在阴极、阳极高度以及插入深度一定的情况下,建立电场、热场的耦合模型。通过对稀土电解槽内电-热场耦合前后模拟结果的对比,发现电场在阴阳极之间的分布较耦合前混乱,耦合前后其分布数值存在0.03V的差别;耦合前后热场的分布形态基本一致,温度分布均在阴阳极之间达到最高,但耦合后温度逐渐上移,耦合前后温度出现明显差别,其最高温度相差约24℃。稀土电解槽中这些物理场之间有一定的相互作用,进一步体现了耦合过程的合理性。The model of electric field and thermal field coupling in 3 kA rare earth neodymium electrolytic cell was established by a numerical Simulation software COMSOL with certain height of cathode and anode and insertion depth. By comparing the simulation results of the electric and thermal fields in the rare earth electrolytic cell before and after coupling, it is found that the distribution of the electric field between the cathode and the anode after coupling is more chaotic than that before Coupling, and the difference of the electric potential before and after coupling is 0.03 V. The distribution patterns of thermal field are basically consistent before and after coupling, and the temperature distributed between the cathode and the anode reaches the maximum. After coupling, the temperature gradually rises with obvious difference before and after coupling,and the difference of the highest temperature is about 24 ℃. there is a certain interaction between these physical fields in rare earth electrolytic cell, further reflecting the rationality of coupling process.

关 键 词：稀土电解槽 ND 电-热场 耦合 数值模拟 

分 类 号：TF845.6[冶金工程—有色金属冶金]