摘要
针对500kA全石墨化阴极电解槽在低电压条件下的运行特性进行了分析。通过实验数据与理论探讨,报告了全石墨化阴极电解槽在低电压运行时的能耗、电流效率及使用寿命变化。研究结果表明:采用全石墨化阴极的电解槽在低电压操作下,能够显著降低电能消耗(减少约99 kW·h/t·Al),提升电流效率,并延长电解槽的使用周期。此外,针对电解质体系的优化进行了调查,发现当AlF_(3)添加量为16.5 kg/t·Al时,分子比与Al_(2)O_(3)浓度达到最佳平衡,电解槽运行稳定性显著提高。
This study analyzed the operational characteristics of a 500kA fully graphitized cathode electrolytic cell under low voltage conditions.Through experimental data and theoretical exploration,the changes in energy consumption,current efficiency,and service life of the electrolytic cell were reported.The results indicate that the fully graphitized cathode electrolytic cell under low voltage operation can significantly reduce energy consumption(by approximately 99 kW·h/t·Al),improve current efficiency,and extend the service cycle of the cell.Furthermore,an investigation on the optimization of the electrolyte system revealed that when the AlF_(3)addition amount reached 16.5 kg/t·Al,the molecular ratio and Al_(2)O_(3)concentration achieved an optimal balance,significantly enhancing the operational stability of the electrolytic cell.
作者
杨国伟
赵刘平
YANG Guowei;ZHAO Liuping(Gansu Dongxing Aluminum Co.Ltd.,Jiuquan Iron and Steel(Group),Jiayuguan 735100,China)
出处
《甘肃冶金》
2025年第4期90-92,97,共4页
Gansu Metallurgy
关键词
500kA铝电解槽
全石墨化阴极
能效优化
电解质体系
热平衡控制
500kA aluminum electrolytic cell
fully graphitized cathode
energy efficiency optimization
electrolyte system
thermal balance control
