稀土电解槽阳极气体表观速度对其流场影响的数值模拟  

Numerical Simulation of Effects of Anode Gas Apparent Velocity on Flow Field in Rare Earth Electrolysis Cell

作　　者：刘中兴[1] 鞠阳[1] 伍永福[1] 胡永胜[2] 韩文帅[1] 

机构地区：[1]内蒙古科技大学能源与环境工程学院,内蒙古包头014010 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《稀有金属与硬质合金》2014年第5期5-8,19,共5页Rare Metals and Cemented Carbides

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

摘　　要：利用CFD软件建立了3kA稀土电解槽气-液两相流数学模型,通过阴极金属生成量计算阳极表面不同深度的气体表观速度,首次提出将阳极气体表观速度的计算与稀土电解槽流场的数值模拟相结合。对比阳极深度分别为0.250、0.300、0.350、0.395m的有无加载表观速度的阳极气体流场的分布情况,结果表明,在同坐标下优化后的加载表观速度的阳极气体速度均大于未加载表观速度的阳极气体速度,且前者槽内熔体扰动大于后者。此结果为稀土电解槽流场实际运行情况提供了理论依据。CFD software is used to establish 3 kA rare earth electrolytic cell mathematical model of gas-liquid two-phase flow, the anode gas apparent velocity of different depth is calculated via cathode metal generation,and the combination of the anode gas apparent velocity calculation with rare earth electrolytic cell flow field numerical simulation is proposed for the first time. Comparison is made of the anode gas flow field distribution loaded or unloaded with apparent velocity at the anode depth of 0. 250 m, 0. 300 m, 0. 350 m and 0. 395 re,respectively. The results show that in the same coordinates the anode gas velocity loaded with apparent velocity is greater than that unloaded with apparent velocity, the former groove melt has stronger perturbance than the latter,as can provide theoretical basis for the actual operation of RE electrolysis cell flow field.

关 键 词：稀土电解槽 阳极气体表观速度 流场 数值模拟 

分 类 号：TF845[冶金工程—有色金属冶金]