炼铁厂含锌尘泥中铁、锌、碳分离技术探讨

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。

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

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,...