大型预焙阳极铝电解槽内衬结构优化

Optimization of liner structure in large-scale pre-baked aluminum reduction cell

以电解槽内衬结构设计优化为突破口,开发一种新型曲面阴极结构电解槽,通过多物理场有限元数值仿真,研究新型结构槽的热平衡、物理场分布特征及在低极距下高效运行的稳定性。试验结果表明,新型结构槽能在保持高电流效率的前提下在低电压稳定运行,吨铝直流电耗为12 331 kW.h,并可有效延长电解槽使用寿命。

Taking cell liner design as the breakthrough point,a new type cell of bend surface cathode structure was developed and the working stability of this new cell under low polar distance condition was studied.The results show that the new structure cell can efficiently reduce direct current consumption to 12 331 kW？h,stabilize electrolysis production and extend the cell life.