5kA级惰性阳极铝电解槽流场仿真研究  

Simulation on Flow Field in 5 kA Inert Anode Aluminum Reduction Cell

作　　者：王志刚[1,2] 李劼[2] 张红亮[2] 赖延清[2] 

机构地区：[1]中国瑞林工程技术有限公司,江西南昌330002 [2]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《有色冶金设计与研究》2010年第3期11-15,共5页Nonferrous Metals Engineering & Research

基　　金：国家高技术发展研究计划(2008AA30504);国家自然科学基金项目(50874120)

摘　　要：针对铝电解槽流场计算方法的不足,率先提出一种用于铝电解槽流场仿真计算的间接耦合方法,并使用此方法对5 kA级惰性阳极铝电解槽分别在电磁力、阳极气体、电磁力和阳极气体共同作用下的电解质和铝液流场分布情况进行了仿真计算。计算表明,计算方法能够合理计算出电解质和铝液在任一体积力作用下的流场分布。5 kA级惰性阳极铝电解槽电解质流动主要受阳极气体控制,铝液流动主要受电磁力控制。电解质在仅电磁力作用、仅阳极气体作用、电磁力和阳极气体共同作用下的平均流速分别为1.784 cm/s、3.657 cm/s、3.814 cm/s,铝液平均流速分别为1.295 cm/s、3.509 cm/s、3.696 cm/s。Focusing on the shortcomings of calculation method for flow field in aluminum electrolytic cell,a indirect coupled method for simulation on flow field in aluminum electrolytic cell was firstly put forward,simulation calculation for condition of flow field distribution of electrolyte and aluminum liquid is carried out for 5 kA inert anode aluminum electrolytic cell in the electromagnetic force,anode gas and combined force of electromagnetic force and anode gas.The results indicate that the method can calculate the flow field of aluminum liquid and electrolyte under any kind of volume forces in a reasonable way.The electrolyte flow in 5 kA inert anode aluminum electrolytic cell is found to be mainly controlled by anode gas while the aluminum flow is mainly controlled by electromagnetic force.The average velocity of electrolyte under the electromagnetic force,anode gas and combined force of electromagnetic force and anode gas is 1.784,3.657,and 3.814 cm/s while the average velocity of aluminum is 1.295,3.509 and 3.696 cm/s,respectively.

关 键 词：铝电解 惰性阳极 电解槽 流场 数值模拟 

分 类 号：TF821[冶金工程—有色金属冶金] O441.4[理学—电磁学]