炼铁厂含锌尘泥中铁、锌、碳分离技术探讨  

Discussion on Separation Technology of Iron, Zink and Carbon in Zinc-borne Dust from Iron-making Plant

作　　者：董宝利[1] 孙丽君[1] 王静[1] 

机构地区：[1]济钢集团国际工程技术有限公司,山东济南250101

出　　处：《山东冶金》2011年第6期1-3,7,共4页Shandong Metallurgy

摘　　要：为充分利用炼铁厂的二次资源,在归纳分析采用湿法、火法和物理方法处理含锌尘泥的基础上,针对炼铁厂含锌尘泥矿物组成的差异,探讨了不同的选矿方法回收铁、碳和锌的可行性,提出了多段磁选—浮碳—浮锌、磁选—重选—浮碳—浮锌以及水力/风力分级-浮锌、直接浮锌的联合工艺流程,以实现含锌尘泥中铁、锌、碳有用资源的高效分离及回收利用,满足高炉冶炼的需求。In order to take full advantage of the secondary resource of iron-making plant, this article summarized and analyzed the methods of processing zinc-borne dust such as wet process, pyrogenic process and physical process. Aiming at the mineral component difference of zinc-borne dust, the article discussed the feasibility of recovering iron, carbon and zinc by different methods of mineral dressing methods also and put forward the combination flow of more-stages magnetic separation-flotation of carbon and zinc, magnetic separation-gravity separation-flotation of carbon and zinc as well as hydrocyclone and wind classifier-flotation of zinc and direct flotation of zinc, for realizing effective separation and reutilization of iron, zinc and carbon in zinc-borne dust and satisfying the needs of blast furnace smelting.

关 键 词：含锌尘泥 回收利用 铁 锌 碳 

分 类 号：X757[环境科学与工程—环境工程]