摘要
东鞍山铁矿石资源储量丰富,但原矿品位低、组成复杂、嵌布粒度细、磨矿特性差,属典型难选贫杂铁矿石。但现有选矿流程存在的生产工艺复杂、粗细分级和再磨效率低、重选选别效果差、含碳酸盐铁矿石及尾矿固废资源无法高效利用等问题,总结了近年来东鞍山贫杂赤铁矿矿石选矿技术取得的进展,介绍了贫杂赤铁矿石“磨矿—弱磁选强磁选抛尾—搅拌磨磨矿—反浮选”短流程新技术、含碳酸盐铁矿石“悬浮磁化焙烧—磁选”新技术以及浮选尾矿“磁选预富集—悬浮磁化焙烧—磁选”新技术,为东鞍山贫杂铁矿石的高效开发与利用提供了新思路。
Donganshan Iron ore is rich in resources and reserves,but it is a typical refractory iron ore with low grade,complex composition,fine disseminated particle size and poor grinding characteristics.The existing beneficiation process has many problems,such as complex production process,low efficiency of coarse/fine classification and regrinding,poor effect of gravity separation and inefficient utilization of carbonate-containing iron ore and tailings.This study summarized the beneficiation technology progress of Donganshan iron ore in recent years,new technologies of“grinding-low intensity magnetic separation and high intensity magnetic separation-stirring grinding-reverse flotation”for poor hematite ore,“suspension magnetization roasting-magnetic separation”for carbonate bearing iron ore,and“preconcentration of magnetic separation-suspension magnetization roasting-magnetic separation”for the final flotation tailings were proposed,which provided a new idea for the efficient development and utilization of Donganshan iron ore.
作者
杨光
苏兴国
马自飞
张小龙
李艳军
YANG Guang;SU Xingguo;MA Zifei;ZHANG Xiaolong;LI Yanjun(Donganshan Sintering Plant of Anshan Iron and Steel Group Co., Ltd., Anshan 114000, China;College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China)
出处
《矿产保护与利用》
2021年第5期140-148,共9页
Conservation and Utilization of Mineral Resources
基金
国家自然科学基金项目(52104248,52074067)
辽宁省"兴辽人才计划"项目(XLYC1908017)。
关键词
东鞍山
赤铁矿矿石
含碳酸盐铁矿
悬浮磁化焙烧
反浮选
Donganshan
hematite ore
carbonate-containing iron ore
suspension magnetization roasting
reverse flotation
作者简介
杨光(1976-),男,高级工程师;通信作者:张小龙(1991-),男,博士后。
