电解槽内异型凸台对电解质/铝液界面波动的影响  

Impact of the Novel Cathode Convex on the Electrolyte/Aluminum Interface Wave in a Reduction Cell

作　　者：贺铸[1] 李宝宽[1] 王芳[1] 冯乃祥[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2011年第5期704-707,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50934005)

摘　　要：针对铝电解槽内电解质/铝液界面的波动现象,基于计算流体动力学(CFD)的方法建立了铝电解槽内电解质/铝液两相流体流动的数学模型.使用Fluent软件的流体体积自由面跟踪法和自定义函数,研究了阴极凸台对电解质/铝液界面波动的影响.结果表明,异型凸台的加入使得两相界面的波动幅度降低了17.2%,但凸台的存在同时也使得熔体对侧部槽帮冲刷增强.Reducing electric energy consumption of an aluminum reduction cell requires shortening of the anode-cathode distance（ACD）,which requires a lower magnitude of liquid aluminum wave.A mathematical model of electrolyte/aluminum two-phase flow in reduction cells,based on a computational fluid dynamics（CFD） method and the commercial software Fluent,was developed to study the impact of the cathode convex on the electrolyte/aluminum interface wave.The magnitude of the two-phase interface wave was reduced 17.2% for cathode convexes,while also enhancing washout of the melt on the ledge.

关 键 词：铝电解槽 界面波动 异型凸台 两相流动 计算流体动力学 

分 类 号：TF821[冶金工程—有色金属冶金]