某地镜铁矿回收新工艺的研究

Study on new process for recovery of specularite from It

针对某选矿厂弱磁选尾矿主要含镜铁矿的矿石性质,用SSS-I高梯度磁选机作为粗、精选设备,采用一粗一精、粗精矿再磨的工艺回收镜铁矿.在给矿Fe品位16.77%的条件下,获得铁精矿品位61.68%、回收率55.17%的指标,其中镜铁矿回收率达83.31%.该选别工艺合理,可有效回收弱磁尾矿中的镜铁矿.

Aiming at a beneficiation plant whose ore property of weak magnetic tailings mainly contains specularite,SSS-I high gradient magnetic separator was introduced as the rougher and concentrator equipment to recover specularite via to the ＂rougher-concentrator-primary concentrate grinding＂process.61.68% grade,55.17%recovery of iron ore concentrate including 83.31%recovery of specularite ore was achieved from raw material with Fe grade 16.77%.The reasonable dressing process effectively recovered the specularite from weak magnetic tailings.