磁流体稳定性在240 kA电解槽上的优化升级及工业实践应用  

Optimization and industrial application of magnetic fluid stability on 240 kA aluminum reduction pots

作　　者：张含博[1] 孔晔 王东光 Zhang Hanbo;Kong Ye;Wang Dongguang(Shenyang Aluminum&Magnesium Engineering&Research Institute Co.,Ltd.,Shenyang 110001,China;Inner Mongolia Huomei-Hongjun Aluminum and Electricity Co.,Ltd.,Huolinguole 029200,China)

机构地区：[1]沈阳铝镁设计研究院有限公司,辽宁沈阳110001 [2]内蒙古霍煤鸿骏铝电有限责任公司,内蒙古霍林郭勒029200

出　　处：《轻金属》2025年第1期26-30,共5页Light Metals

摘　　要：随着双碳背景下行业政策的不断提出,电解铝生产能耗的控制面临着极大的挑战,节能升级改造迫在眉睫,其中提高电解槽磁流体稳定性是一项重要的手段。本文对某厂240 kA铝电解槽的磁流体稳定性进行研究,将母线配置进行整体原位升级。计算结果显示改造后的垂直磁场绝对值降低68%,同时均匀度得到大幅度改善;熔体区流速显著降低,界面变形减小0.6 cm。工业实践与效果显示,经磁流体优化后,再结合电解槽内衬及上部结构升级,电解槽运行指标优异,电解系列直流电耗降低约900 kWh/t-Al,节能效果和经济效益显著。With the continuous introduction of industrial policies against the"dual carbon"backgronnd,the control of energy consumption in electrolytic aluminum production is encountering significant challenges,the energy-saving upgrading and transformation are of utmost urgency.Enhancing the magnetic fluid stability of the aluminum reduction pot is one of the crucial means.This paper studies the magnetic fluid stability of 240 kA aluminum reduction pots in a smelter,and the in-situ upgrading of overall busbar configuration is carried out.The calculation results show that the absolute value of the vertical magnetic field is reduced by 68%,the uniformity is notably improved,the flow velocity in the molten zone is considerably reduced,and the interface deformation is decreased by 0.6 cm after the transformation.The industrial practice and results show that after optimizing the magnetic fluid as well as upgrading the inner lining and upper structure of the aluminum reduction pot,the operating indicators of the aluminum reduction pot are excellent,and the DC power consumption of the potline is reduced by about 900 kWh/t-Al,with significant energy-saving and economic benefits achieved as well.

关 键 词：铝电解槽 磁流体稳定性 网络化自均衡母线 节能改造 

分 类 号：TF821[冶金工程—有色金属冶金]