降低水平电流减少铝液动态波动铝电解节能技术研究

通过计算机模拟仿真研究复合稳流综合节能技术对铝电解过程中阴极铝液内水平电流的影响。结果表明,以高导电方钢为核心的复合稳流综合节能技术可明显降低阴极铝液内水平电流大小,降低电解质-铝液界面变形,提高电解槽内磁流体的稳定性,以此来降低槽电压和提高电流效率,达到节能降耗的作用。为验证仿真模拟结果,在某企业300 kA系列电解槽进行复合稳流综合节能技术工业化试验,采用以高导电钢棒为核心的复合稳流综合节能技术,电解槽内水平电流降低明显,获得了非常小的铝液界面变形量,电解槽生产运行稳定性明显提高,吨铝直流电耗较系列传统槽、201技术槽、双钢棒技术槽都低。

Study on Energy Saving of Aluminum Reduction by Reducing Horizontal Current and Decreasing Dynamic Fluctuation of Molten Aluminum

Effect of comprehensive energy saving technology on level of current flow of composite cathode in molten aluminum during aluminum electrolysis process was researched with computer analog simulation. The simulation results show that comprehensive energy saving technology with high conductive composite stabilized steel core can significantly reduce size of current level of cathode in molten aluminum, reduce electrolyte aluminum liquid interfacial deformation, improve stability of magnetic fluid of electrolyzer, and cell voltage and current efficiency is improved to achieve energy saving effect. In order to verify simulation results, comprehensive energy saving technology industrialization composite steady flow is tested in 300 kA series of electrolytic cell. With application of comprehensive energy saving technology with high electrolytic current composite conductive steel rod as core, current level of cathode is significantly reduced, electrolyte aluminum liquid interfacial deformation is very small, operation stability of electrolytic cell production is improved, and DC power consumption of per tonnage aluminum is lower than that of series of traditional cells, 201 technology cells and double steel bar technology cells.