350 kA电解槽降碳技术实践  

Application of carbon reduction technology to 350 kA aluminum reduction pots

作　　者：杨丹丹 Yang Dandan(SPIC Ningxia Energy-AL Group Co.,Ltd.,Yinchuan 750004,China)

机构地区：[1]国家电投集团铝电投资有限公司,宁夏银川750004

出　　处：《轻金属》2023年第9期27-30,共4页Light Metals

摘　　要：在国电投集团绿色铝电生态集成战略下,为进一步降低碳排放,某350 kA电解系列使用石墨化阴极结合生铁浇铸技术进行技术升级。经技术升级后,系列电流提升至370 kA,电解槽平均电压3.956 V,炉底压降159 mV,炉膛情况良好。石墨化阴极电解槽在转入正常生产期后半年内平均直流电耗12695 kWh/t-Al,相比原半石墨质阴极技术降低了约194 kWh/t-Al。技术数据说明技改效果显著,且对铝行业节能及降碳工作具有一定指导意义。Under the green aluminum ecological integration strategy of State Power Investment Corporation(SPIC),in order to further reduce carbon emissions,a 350 kA potline uses graphitized cathode combined with pig iron casting technology for technological upgrading.After technological upgrading,the potline current has been increased to 370 kA,the pot average voltage is 3.956 V,the voltage drop at pot bottom is 159 mV,and the pot cavity is in good condition.The average DC power consumption of the graphitized cathode aluminum reduction pot within six months after entering the normal production period is 12695 kWh/t-Al,which is about 194 kWh/t-Al lower than the original semi-graphitic cathode technology.The technological data indicates that the technological transformation has significant effects,with some guiding significance for energy-saving and carbon reduction work in the aluminum industry.

关 键 词：绿色铝电 铝电解槽 石墨化阴极 生铁浇铸 直流电耗 碳排放 

分 类 号：TF821[冶金工程—有色金属冶金]