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The inability of a new anodeAnode to conduct electricity initially poses a significant challenge to the stability of the cell during the anodeAnode exchange process. In this study, a computer simulationSimulation model was developed to analyze electromagnetic and fluid fields, focusing on horizontal currentsHorizontal current in liquid metalMetals and metalMetals-bath interface deformationInterface deformation before and after exchange. Our findings reveal that after an anode changeAnode change, the maximum horizontal currentHorizontal current can surge 2–3 times compared to previous levels. Additionally, the metalMetals-bath interface deformationInterface deformation amplitude increases by 4–10 mm, with areas exceeding 10 and 20 mm deformations increasing by 1.5 and 2.3 times, respectively. Based on a large number of anode currentAnode current measurementsMeasurements, the changes of anode currentAnode current size, fluctuation degree and current recoveryRecovery speed before and after anode changeAnode change were compared and analyzed. Furthermore, the reasons for the change of anode currentAnode current magnitude and fluctuation were explained by combining the results of the simulationSimulation model, and suggestions were put forward to speed up the current recoveryRecovery and improve cell MHD stabilityMHD stability.

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Study on the Interface Deformation and Anode Current Distribution Variation in the Process of Anode Change in Aluminum Reduction Cell

  • 会议论文

  • 发表日期：

    2025年

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  • Xi Cao,
  • Jie Li,
  • Hongliang Zhang,
  • Hongwu Hu,
  • Zhibin Zhao,
  • Qinsong Zhang,
  • Wei Liu,
  • Michael Ren

摘要

The inability of a new anodeAnode to conduct electricity initially poses a significant challenge to the stability of the cell during the anodeAnode exchange process. In this study, a computer simulationSimulation model was developed to analyze electromagnetic and fluid fields, focusing on horizontal currentsHorizontal current in liquid metalMetals and metalMetals-bath interface deformationInterface deformation before and after exchange. Our findings reveal that after an anode changeAnode change, the maximum horizontal currentHorizontal current can surge 2–3 times compared to previous levels. Additionally, the metalMetals-bath interface deformationInterface deformation amplitude increases by 4–10 mm, with areas exceeding 10 and 20 mm deformations increasing by 1.5 and 2.3 times, respectively. Based on a large number of anode currentAnode current measurementsMeasurements, the changes of anode currentAnode current size, fluctuation degree and current recoveryRecovery speed before and after anode changeAnode change were compared and analyzed. Furthermore, the reasons for the change of anode currentAnode current magnitude and fluctuation were explained by combining the results of the simulationSimulation model, and suggestions were put forward to speed up the current recoveryRecovery and improve cell MHD stabilityMHD stability.