某铝业公司原有160kA中间下料预焙铝电解槽520台,是80年代在消化吸收贵州分公司引进日轻技术的基础上设计的。随着电解铝行业的快速发展,公司在追求少投入、多产出、高效益的前提下,为降低生产成本,提高产能和经济效益,2004年对520台160kA电解槽进行扩容改造,电流从160kA扩容至 An aluminum company original 160kA middle prebaked aluminum electrolysis cell 520, is the 1980s in the digestion and absorption of Guizhou branch of the introduction of Japanese technology on the basis of the design. With the rapid development of electrolytic aluminum industry, under the premise of less investment, more output and more high efficiency, in order to reduce the production cost and increase the production capacity and economic efficiency, the Company expanded the capacity of 520 160kA electrolytic cells in 2004, 160kA expansion to