熔盐电解制取金属铈槽内温度场的数值模拟

Numerical Simulation of Temperature Field in Electrolytic Bath for Preparing Rare Earth Cerium by Molten Salt Electrolysis

采用COMSOL Multiphysics模拟软件对6 k A新型铈电解槽内温度场进行数值模拟。同时,在改变阴、阳极的插入深度时,对其温度场的分布变化情况进行分析。模拟结果表明,随着铈电解槽内阴、阳极插入深度的增加电解槽的温度逐渐升高,然而电解槽的底部的温度基本保持不变;阴、阳及插入深度逐渐的减小时,电解槽的温度逐渐减小,因此通过模拟后发现最佳的阴极插入深度约为290 mm,阳极插入深度约为250 mm。本文通过对铈电解槽温度场分布情况的模拟研究,对铈电解槽优化与开发设计具一定的指导意义。

COMSOL Muhiphysics simulation software was used to simulate the temperature field in 6 kA new type cerium electrolysis bath and change of the temperature field is analyzed with the insertion depth of cathode and anode. The results show that with increase of the depth of the cathode and anode in the cerium electrolysis bath, the temperature of the electrolytic bath increases gradually but keep constant at the bottom; While the temperature of the electrolytic cell decreases gradually with the decrease of insertion depths. Thus, after simulation, the optimum insertion depth of cathode was found to be about 290 mm and that of anode was about 250 ram. The simulation research on the temperature field of the electrolytic cell is of great signifi- cance for the development and design of the cerium electrolytic cell.