有色金属科学与工程2017，Vol.8Issue(5)：26-33,8.DOI:10.13264/j.cnki.ysjskx.2017.05.004
铝电解槽电磁流强耦合仿真及其在新型阴极上的应用
Simulation of strong coupling electromagnetic current in aluminum reduction cells and its application in new cathodes
摘要
Abstract
Though various new cathodic structures of aluminum reduction cells have been applied in industry, their electro-magneto-flow is still not completely clear. In this paper, a transient 3 D three-phase MHD model in aluminum reduction cells was established on ANSYS platform, and then was utilized to calculate the strong coupling of electro-magneto-flow in some 420 kA cells with three kinds of new cathodic structures. The results show that compared with common cathode, three new cathodic schemes can decrease the flow rate of aluminum liquid and electrolyte in the cells. The flow rate of electrolyte in the case of boss-type cathode declines significantly, which is not conducive to the melting and dispersion of alumina particle. In the reduction of aluminum liquid and electrolyte interface fluctuation, the above-mentioned three schemes all have certain effects. The boss-type structure can reduce the interfacial regions with large deformation. In addition, such structure will slightly decrease current efficiency. This model can provide a basic tool for choosing structure scheme of large aluminum reduction cells.关键词
铝电解/新型阴极/磁流体/物理场仿真Key words
aluminum electrolysis/new cathode/MHD/physical field simulation分类
矿业与冶金引用本文复制引用
张红亮,梁金鼎,徐宇杰,李劼..铝电解槽电磁流强耦合仿真及其在新型阴极上的应用[J].有色金属科学与工程,2017,8(5):26-33,8.基金项目
国家自然科学基金面上项目 (51674300,51574289) （51674300,51574289）
国家自然科学基金重点项目(61533020) （61533020）
中南大学"创新驱动计划"项目资助 (2015CXS017) （2015CXS017）
