一种7点进电500kA铝电解槽母线设计及应用

Design and application of a 500kA aluminum electrolytic cell busbar with 7-point input

本文笔者利用基于ANSYS软件平台二次开发的铝电解槽磁场模拟计算专用软件和“MHD-Valdis”磁流体计算软件等先进的铝电解槽磁流体分析软件,对采用较窄阳极,更有利于阳极底掌气体溢出,降低气膜压降的500kA铝电解槽进行了全面磁流体稳定性分析和母线装置设计工作。模拟和实际运行结果表明,采用窄阳极的500kA铝电解槽同比具有更低运行槽电压、有利于电解槽电流效率提高、能耗的节约和闪烁效应的产生。同时配套的7点进电自补偿母线装置,结构简洁、母线用量低和便于安装,在同等级别规模铝电解项目建设中,经济效益更佳。

In this paper, the author makes full analysis of magnetohydrodynamic stability and bus assembly of 500 kA aluminium reduction cell with narrower anode, which is more conducive to gas overflow at the bottom of anode and reducing film pressure drop, by using advanced software such as ANSYS and MHD-Valdis. Set up design work. The results of simulation and actual operation show that the 500 kA aluminium reduction cell with narrow anode has lower operating cell voltage than that of the same cell, which is conducive to the improvement of current efficiency, energy saving and scintillation effect of the cell. At the same time, the 7-point feeding self-compensating bus device is simple in structure, low in bus usage and easy to install. In the construction of aluminium electrolysis projects of the same scale, the economic benefit is better.