200 kA铝电解槽炉底结壳产生原因及控制措施  

Formation causes and control measures of crust at the bottom of 200 kA aluminum pot

作　　者：祝可武 Zhu Kewu(Qinghai Branch of CHALCO,Xining 810108,China)

机构地区：[1]中国铝业青海分公司,青海西宁810108

出　　处：《轻金属》2020年第7期19-23,共5页Light Metals

摘　　要：预焙铝电解槽生产过程中形成的炉底结壳,不仅影响铝电解正常生产运行,同时还会影响铝电解技术经济指标和槽寿命。本文通过对200 kA电解槽炉底结壳的形成原因以及结壳对电解生产过程的影响进行分析,研究了控制炉底结壳的措施。生产实践表明,通过调整热平衡、物料平衡及人工处理能够有效消除炉底结壳。The crust formed at the bottom during the production process of aluminum pot not only affects the normal operation of aluminum pots but also influences its techno-economic indicators and service life.The paper studies measures to control the bottom crust,through the analysis on formation causes for crust at the bottom of 200 kA aluminum pot and its influence on the aluminum production process.The production practice shows that the pot bottom crust can be effectively eliminated by adjusting the heat balance,mass balance and manual treatment.

关 键 词：铝电解槽 氧化铝 结壳 控制措施 

分 类 号：TF821[冶金工程—有色金属冶金]