摘要
钢铁冶金过程产生大量的冶金尘泥,为研究冶金尘泥的组成特点和处置技术,论文分析了不同粉尘中的Fe、Ca和C等有价成分的组成特点和资源化利用技术。结果表明:冶金尘泥的利用方式和组成关系密切,一般来说和原料组成相差较小的冶金尘泥,其利用方式多以直接回工序利用为主,对于含杂质组成较多的冶金尘泥,直接回工序利用会导致杂质组成在冶炼过程中的循环富集,必须采用去杂质技术将尘泥中的杂质去除,可以结合杂质在尘泥中的物理化学特性,采用湿法冶金或火法冶金工艺进行杂质去除后再进行利用。
The metallurgical process of iron and steel produces a large amount of metallurgical dust and mud.In order to study the composition characteristics and disposal technology of metallurgical dust,the composition characteristics and resource utilization technology of Fe,Ca and C valuable components in different dust were analyzed.The results show that the utilization mode and composition of metallurgical sludge are closely related.Generally speaking,the utilization mode of metallurgical sludge with small difference between raw material composition and raw material composition is mainly direct recycling process.For metallurgical sludge containing more impurities,direct recycling will lead to the cyclic enrichment of impurities in the smelting process.Impurity removal technology must be used to remove impurities in the sludge.Combined with the physical and chemical characteristics of impurities in the sludge,hydrometallurgical and pyrometallurgical processes can be used to remove impurities and reuse.
作者
田玮
岳昌盛
彭犇
TIAN Wei;YUE Changsheng;PENG Ben(Central Research Institute of Building and Construction,MCC Group Co.Ltd.,Beijing 100088,China;Energy Saving and Environmental Protection,MCC Group Co.Ltd.,Beijing 100088,China;National Engineering Research Center of industrial environmental protection,Beijing 100088,China)
出处
《矿产保护与利用》
2019年第3期105-110,共6页
Conservation and Utilization of Mineral Resources
基金
北京市科技新星计划资助项目(Z181100006218096)
关键词
冶金尘泥
组成
处置
资源化利用
metallurgical dusts
composition
disposal
resource utilization
