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苍山铁矿选矿工艺试验研究
Authors
叶树峰
姚树建
钱鹏
韩培伟
Publication date
1 January 2017
Publisher
Abstract
针对苍山含铁较低的贫磁铁矿,开展了预先抛废技术,使矿石磁性铁品位富集,再利用阶段磨矿、粗磨抛尾及粗磨提精工艺,回收苍山贫磁铁矿中的铁,从而形成了难处理铁矿中铁的回收工艺,以达到提质降耗、实现贫磁铁矿中铁综合回收的目的。采用两个方案进行了选矿试验,分别为:干式磁选-粗粒湿式磁选-阶段磨矿-弱磁选、干式磁选-粗粒湿式磁选-磨矿-弱磁选-细筛-筛上再磨再选。原矿经干式磁选与粗粒湿式磁选后可以获得产率为77.62%、铁品位36.20%的球磨给矿。该作业可以抛出产率22.38%、含铁13.40%的合格废石,全铁损失率9.65%,磁性铁损失仅1.88%,抛废效果明显。两个试验方案均可获得产率约为35%、铁品位约为65.6%、铁回收率约为74%的铁精矿。</p
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Last time updated on 08/09/2018