磁场筛选机对河北某铁矿选厂改造的选矿试验

Journal of Henan Science and Technology(2018)

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Abstract
本文利用磁场筛选机(以下简称"磁筛")对河北某铁矿选厂铁精矿和高频筛给矿进行了选矿试验,为选厂改造提供了两套方案.通过选厂铁精矿精选提质试验和选厂铁精矿磁筛尾矿再磨再选试验确定了方案一:把磁筛放在选厂最终精选的位置,选厂铁精矿精选提质试验可以得到产率89.10%、品位68.78%、回收率92.85%的精矿产品,品位由66.00%提高到68.78%,提高了2.78个百分点;选厂铁精矿磁筛尾矿再磨再选试验可以得到产率74.72%、品位65.01%、回收率78.73%的铁精矿,品位由44.86%提高到65.01%,提高了20.15个百分点.通过选厂高频筛给矿选矿试验确定了方案二:把磁筛放在选厂高频筛之后,选厂高频筛给矿选矿试验可以得到产率38.63%、品位67.44%、回收率67.58%的精矿产品,品位由38.55%提高到67.44%,提高了28.89个百分点.
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