新型铝电解用干式防渗料的研发和应用  

Development and application of new dry barrier powder refractory for aluminum electrolysis cell

作　　者：李昌林 汪艳芳 白卫国 周云峰 罗丽芬 焦庆国 柴登鹏 Li Changlin;Wang Yanfang;Bai Weiguo;Zhou Yunfeng;Luo Lifen;Jiao Qingguo;Chai Dengpeng(Zhengzhou Non-ferrous Metals Besearch Institute Co.,Ltd.,CHALCO,Zhengzhou 450041;China National Engineering and Technology Research Centre for Aluminium,Zhengzhou 50041,China)

机构地区：[1]中铝郑州有色金属研究院有限公司,河南郑州450041 [2]国家铝冶炼工程技术研究中心,河南郑州450041

出　　处：《铝镁通讯》2019年第2期19-21,共3页

摘　　要：为确保防渗料的质量,尽力避免因防渗料质量给电解企业生产造成的损失,开发品质高适应性强的防渗料势在必行。本文通过优化防渗料配方获得960℃×96h防渗试验后反应层厚度7mm的高性能防渗料。通过工业试验,发现使用该防渗料后,电解槽炉底板温度同比降低37%℃,槽底散热减少18mV,长期运行过程中电解槽炉底无沉淀结壳,电解槽运行稳定。电解槽电压降低25mV,电流效率提高0.2%,吨铝直流电耗降低109kWh/t-Al,具有良好节能效果。In order to ensure the quality of barrier powder refractory, avoid losses caused by using poor quality barrier powder refractory, it is imperative to develop high quality barrier powder refractory. A new dry barrier powder refractory with reacting thickness less than 7mm the in 960℃× 96h test was developed by optimizing the formula. In industrial test, after new dry barrier powder refractory used, electrolytic cell bottom outside surface temperature decreased by 37℃,cell bottom heat loss decreased 18mV, cell bottom kept clean and cell maintained stable in long-term operation, cell voltage reduced 25mV, current efficiency increased 0.2 %, DC power consumption decreased 109 kWh/t-Al, a good energy-saving effect was obtained.

关 键 词：铝电解 干式防渗料 研发 应用 

分 类 号：TF821[冶金工程—有色金属冶金]