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

  • Zhou Nai-jun Email author
  • Xia Xiao-xia 
  • Bao Sheng-zhong 
Article

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.

Key words

aluminum electrolysis cells electrolyte flow fields electromagnetic force anode gas numerical simulation 

CLC number

TF111.52 

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Copyright information

© Science Press 2001

Authors and Affiliations

  • Zhou Nai-jun 
    • 1
    Email author
  • Xia Xiao-xia 
    • 1
    • 2
  • Bao Sheng-zhong 
    • 1
  1. 1.School of Energy Science and EngineeringCentral South UniversityChangshaChina
  2. 2.School of Mechanical and Electrical EngineeringXiangtan UniversityXiangtanChina

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