我国铁矿石选矿工艺与设备综述

Review on Iron Ore Processing Technology and Equipment in China

为了促进难选铁矿石选矿技术的进步,简要介绍了常见选矿工艺和选矿设备。指出铁矿石的分选工艺总体可概括为一段磁选工艺、阶段磨矿阶段弱磁选工艺、带干式预选抛尾的磁选工艺、磁浮联合选矿工艺、焙烧—磁选工艺;磁选设备按磁选机的结构形状不同大致可分为环式磁选机、筒式磁选机、柱式磁选机、辊式磁选机等几类。最后指出磁选设备大型化、高效化、性能稳定、耐久性强是今后研究的重点方向。

In order to promote the progress of refractory iron ore beneficiation technology,the common beneficiation process and beneficiation equipment are briefly introduced.It is pointed out that the overall sorting process of iron ore can be summarized as one-stage magnetic separation process,stage grinding stage weak magnetic separation process,magnetic separation process with dry pre-selection discarding,magnetic flotation combined beneficiation process,roasting-magnetic separation process.Magnetic separation equipment can be roughly divided into ring magnetic separator,cylinder magnetic separator,column magnetic separator,roller magnetic separator and other categories according to the different structure shapes of magnetic separator.Finally,it is pointed out that the magnetic separation equipment with large,efficient,stable performance and durability is the key direction of future research.