500 kA铝电解槽焙烧工艺控制和优化  

Control and optimization of the baking process for 500 kA aluminum reduction cells

作　　者：曹亚兵[1] 程久元 杨成亮[1] 王嘉盛 刘海锋 魏振鹏 Cao Yabing;Cheng Jiuyuan;Yang Chengliang;Wang Jiasheng;Liu Haifeng;Wei Zhenpeng(JISCO Dongxing Aluminum Company Limited,Jiayuguan735100,China)

机构地区：[1]酒钢集团甘肃东兴铝业有限公司,甘肃嘉峪关735100

出　　处：《轻金属》2024年第8期23-26,共4页Light Metals

基　　金：中央引导地方科技发展资金项目(22ZY2QA005);中央引导地方科技发展资金项目(23ZYQB309);嘉峪关市科技计划资助项目(QKJ22-02)。

摘　　要：铝电解槽焙烧质量好坏主要取决于焙烧温度的控制,核心是控制好焙烧温度均匀程度和上升梯度。本文详细阐述了500 kA铝电解槽焙烧工艺控制过程,通过对铺焦挂极、装炉、分流器和软连接的安装使用等关键因素进行工艺优化,使焙烧温度均匀程度、上升梯度得到明显改善,冲击电压大幅降低,阳极电流分布更加均匀,有效提升了焙烧质量。The baking quality of aluminum reduction cells mainly depends on the control of baking temperature,and the core is to control the uniformity degree and rising gradient of baking temperature.This paper expounds the baking process of 500 kA aluminum reduction cells in detail.By optimizing the process of the key elements such as coke hanging pole,charging,installation of shunt and soft connection,the uniformity degree of baking temperature and the rising gradient are significantly improved,the impact voltage is greatly reduced,the anode current distribution is more uniform,and the baking quality is effectively improved.

关 键 词：铝电解槽 焦粒焙烧 焙烧温度 铜质分流器 工艺控制优化 

分 类 号：TF821[冶金工程—有色金属冶金]