Effect of electromagnetic force and anode gas on electrolyte flow in aluminum electrolysis cell

来源期刊：中南大学学报(英文版)2006年第5期

论文作者：周乃君 夏小霞 包生重

文章页码：496 - 500

Key words：aluminum electrolysis cells; electrolyte flow fields; electromagnetic force; anode gas; numerical simulation

Abstract: Based on the commercial computational fluid dynamics software CFX-4.3, electrolyte flow fields in a 156 kA pre-baked anode aluminum electrolysis cell were investigated in three different cases where the electrolyte melt was driven by different kinds of force, i.e. electromagnetic force only, the anode gas drag force only and both of the former two forces. The results show that when electromagnetic force was introduced only, most of the electrolyte moves horizontally; when anode gas drag force was introduced only, the electrolyte flows mainly around each anode with small circulation; when electromagnetic force and anode gas drag force were both introduced together, the structure of the electrolyte flow fields and the velocity of electrolyte are similar to that of the case where only anode gas drag force is used. The electrolyte flow fields are mainly determined by the anode gas drag force.