关于铝电解槽铸铁浇铸阴极的常温铁碳压降-炉底压降的分析  

Analysis on the iron-carbon voltage drop at normal temperaturevoltage drop of pot bottom using iron casting cathode

作　　者：陈金辉 刘铭恩 李广彬[2] 王旋[2] Chen Jinhui;Liu Mingen;Li Guangbin;Wang Xuan(Guangxi Baise Mining and Aluminum Industry Co.,Ltd.,Baise 533000,China;Shenyang Aluminum and Magnesium Engineering and Research Institute Co.,Ltd.,Shenyang 110001,China)

机构地区：[1]广西百矿铝业有限公司,广西百色533000 [2]沈阳铝镁设计研究院有限公司,辽宁沈阳110001

出　　处：《轻金属》2021年第10期28-31,共4页Light Metals

摘　　要：通过对项目A与项目B铸铁浇铸阴极的常温铁碳压降及投产后的电解槽炉底压降进行测量统计,对比两项目的阴极组原材料性能及浇铸过程工艺参数等指标,结果表明:在相同的阴极组结构设计情况下,项目A采用的原材料电阻率较项目B高,在不同的预热温度及铸铁成分等因素影响下,常温铁碳压降反而普遍低于项目B常温铁碳压降,阴极组进入电解槽在电解生产温度下,项目A与项目B的电解槽炉底压降分布又基本接近,常温铁碳压降和生产状态下的炉底压降并未呈现出明显的对应关系。Through the measurement and statistics of the iron-carbon voltage drop at normal temperature and the voltage drop of pot bottom using iron cast cathode in project A and project B,and by comparing the raw material properties of the cathode assembly and the casting process parameters of the two projects,the results show that under the same cathode assembly structure design,the resistivity of raw materials used in project A is higher than that in project B.Under the influence of different preheating temperature and cast iron composition,the iron-carbon voltage drop at normal temperature is generally lower than that of project B.When the cathode assembly were put into the pot at the production temperature,the distribution of the voltage drop of pot bottom in project A and project B is basically close to each other.There is no evident relation between the iron-carbon voltage drop at normal temperature and the voltage drop of pot bottom in production.

关 键 词：铝电解槽 浇铸阴极 常温铁碳压降 炉底压降 

分 类 号：TF821[冶金工程—有色金属冶金]