大型铝电解槽72小时焙烧启动实践  

Practices on the baking and start-up process of 72h for large amperage aluminum reduction cells

作　　者：沈冰 陈世月[2] 

机构地区：[1]青海西部水电有限公司,青海民和810800 [2]贵阳铝镁设计研究院有限公司,贵州贵阳550081

出　　处：《轻金属》2014年第11期32-36,共5页Light Metals

摘　　要：介绍了420k A大型铝电解槽焦粒焙烧干法启动工艺,通过在角部使用焦粒与石墨碎的混合物,采用残极作为角部极,合理控制焙烧启动工艺,获得了均匀的电流分布和温度分布,不仅使焙烧时间缩短为72小时,而且槽壳变形小。The baking and start - up process with particle coke for 420kA large amperage aluminum reduction cells is introduced. Uniform current distribution and temperature distribution are obtained through using a mixture of particle coke and graphite scraps on the comers of the cell, and residual anode as the comer anode and properly controlling the baking and start - up process. Hence, the time of baking and start - up is down to 72 hours and the cell shell deforms a little.

关 键 词：铝电解 焙烧启动 焦粒 残极 72小时 

分 类 号：TF821[冶金工程—有色金属冶金] TF351