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For aluminium reduction cellsAluminum reduction cell, ACD has a big impact on current efficiencyCurrent efficiency. When ACD is lower than a critical value, there will be a large current efficiencyCurrent efficiency loss. In this paper, anode currentAnode current is applied to monitor ACD of each individual anodeAnode. Several factors which can affect the anode currentAnode current are analyzed. It is found that only some specific wave patterns are related to low ACD situation. Based on these findings, an algorithm is developed to process anode currentAnode current data, enabling accurate prediction of low ACD situations. According to the low ACD prediction, the vertical position of the corresponding anodeAnode which has low ACD is adjusted in time. However, too frequent ACD adjustments can inadvertently reduce current efficiencyCurrent efficiency. When proper ACD adjustment frequency is chosen according to the actual situation of the cells, the current efficiencyCurrent efficiency will improve considerably.

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The Application of Anode Current in Current Efficiency Improvement in Reduction Cells

  • 会议论文

  • 发表日期：

    2025年

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  • Qinsong Zhang,
  • Hongwu Hu,
  • Zhibin Zhao,
  • Wei Liu,
  • Yafeng Liu,
  • Michael Ren

摘要

For aluminium reduction cellsAluminum reduction cell, ACD has a big impact on current efficiencyCurrent efficiency. When ACD is lower than a critical value, there will be a large current efficiencyCurrent efficiency loss. In this paper, anode currentAnode current is applied to monitor ACD of each individual anodeAnode. Several factors which can affect the anode currentAnode current are analyzed. It is found that only some specific wave patterns are related to low ACD situation. Based on these findings, an algorithm is developed to process anode currentAnode current data, enabling accurate prediction of low ACD situations. According to the low ACD prediction, the vertical position of the corresponding anodeAnode which has low ACD is adjusted in time. However, too frequent ACD adjustments can inadvertently reduce current efficiencyCurrent efficiency. When proper ACD adjustment frequency is chosen according to the actual situation of the cells, the current efficiencyCurrent efficiency will improve considerably.