铝电解槽废阴极炭块高温处理技术的研究与应用  

Study and Application of High Temperature Treatment Technology of Spent Cathode Carbon Block from Aluminum Reduction Cell

作　　者：虎兴茂 尚文祥 HU Xing-mao;SHANG Wen-xiang

机构地区：[1]国家电投集团宁夏能源铝业科技工程有限公司,宁夏青铜峡751603

出　　处：《有色冶金节能》2020年第4期22-25,共4页Energy Saving of Nonferrous Metallurgy

摘　　要：铝电解槽大修时会产生大量的含有氟化物和氰化物的废阴极炭块,如果直接排放会对生态和环境造成很大危害。基于目前的填埋处理和湿法处理存在维护成本高、氟化物分离不彻底、固体废弃物无法有效利用的现状,提出了铝电解槽废阴极炭块高温处理技术,并对其研究思路、试验过程和工业应用进行了介绍。经过一年多的不断探索及中试试验,实现了废阴极炭块的无害化及资源化处理。A large amount of spent cathode carbon blocks containing fluoride and cyanide would be produced during the overhaul of the aluminum reduction cell,and if they were discharged directly, which would cause great harm to ecology and environment. Based on the current situation of high maintenance cost, incomplete fluoride separation and ineffective utilization of solid waste in landfill disposal and wet treatment, a high temperature treatment technology for spent cathode carbon block from aluminum reduction cell was proposed, and the study thinking, test process and industrial application were introduced. After more than a year of continuous exploration and pilot scale test, the harmless and resource treatment of spent cathode carbon blocks has been realized.

关 键 词：铝电解槽 废阴极炭块 高温处理技术 危险废物 无害化处理 资源化利用 

分 类 号：TF821[冶金工程—有色金属冶金] X705[环境科学与工程—环境工程]