介绍了 75kA预焙阳极电解槽改造后的二次启动实践 ,指出了在停槽、通电焙烧、启动以及启动后期管理中采取的方法和应注意的问题。实践表明 ,二次启动在系列电解槽技术改造中不但可行 ,而且能够取得巨大的经济效益 The practice of secondary start-up after the modification of 75kA prebaked anode cell was introduced. The methods and problems to be noticed in the control of stop slot, power roasting, start-up and post-start-up were pointed out. Practice shows that the second start in the series of electrolytic cell technology is not only feasible, but also can achieve great economic benefits