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Simulation on flow field of anode gas and electrolyte in aluminum electrolysis with cermet inert anodes
Author(s): 
Pages: 1256-1262
Year: Issue:  4
Journal: Journal of Central South University of Technology

Keyword:  GetLinkList(KeywordFilter('铝电解惰性阳极阳极气体电解质流场仿真')'kw''CJFD');
Abstract: 采用有限体积法仿真计算惰性阳极气体运动及其带动下的电解质流动,并研究工艺及结构参数对阳极气体和电解质流场的影响。研究结果表明:电解质沿阳极中心呈对称循环流动,距离阳极气体越近,电解质流速越大;气体流速随气泡直径的增大而增加,电解质流速先下降后增加,气泡直径控制在3 mm为宜;若电流、电解温度和阳极浸入电解质深度增加,则气体的平均流速降低,电解质平均流速增加,应适当降低电流、电解温度和阳极浸入电解质深度;极距增加,则气体平均流速增加,电解质平均流速降低,可适当增加极距;阳极结构本身对流场结果有一定影响,若阳极半径增加,则气体的平均流速增加,电解质平均流速降低,合理的阳极倒角半径为35~40 mm。
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