铝电解槽预焙阳极独立提升工艺设计研究

Study on independent lifting process design of pre-baked anode in aluminum electrolyzer

针对预焙铝电解槽阳极集中提升工艺的不足,本文设计了一种可实现阳极独立提升的新型工艺方案.工艺关键设计包括:独立驱动系统、综合提升系统、导杆软联结供电、电流在线检测设置.根据设计,独立提升工艺具有可实现阳极电流在线测量、提高生产自动化、降低生产作业强度、降低生产能耗等特点.该工艺若成功应用,不仅能推动电解铝技术革新,还预期可实现降低电解电压0.1V、提高电流效率2%以上、降低阳极效应频次至0.01次/槽·日以下,体现显著的节能效果.

Aiming at the shortcomings of the concentrated anode lifting process of the prebaked aluminum electrolytic cell,a new process scheme for the independent anode lifting was designed in this paper.The key process design includes:independent drive system,integrated lifting system,soft-connection power supply of guide rod,and online current detection setting.According to the design,the independent lifting process has the characteristics of enabling on-line measurement of anode current,improving production automation,reducing the intensity of production operations,and reducing production energy consumption.If this process is successfully applied,it will not only promote the technological innovation of electrolytic aluminum,it is also expected to reduce the electrolytic voltage by 0.1V,increase the current efficiency by more than 2%,and reduce the frequency of the anode effect to less than 0.01 times/slot·day,which will show significant energy saving effects.