梅山铁矿入磨矿选矿优化试验研究

梅山铁矿为降低生产运行成本并进一步增大矿石处理量，对入磨矿开展了选矿流程优

化试验研究。分别进行了入磨矿（磨矿细度-0.075 mm占 65%）—浮硫—硫尾弱磁—强磁流程（方案

1）和入磨矿粗磨（磨矿细度-0.075 mm占50%）—重磁拉丢尾—重磁拉精矿再磨（磨矿细度-0.075 mm

占65%）—浮硫—硫尾弱磁—强磁选（方案2）2种流程方案对比。试验结果表明：采用方案2试验，获得

了产率 49.88%、TFe品位 58.29%、含硫 0.20%、TFe回收率77.89% 的铁精矿，以及产率1.81%、硫品位38.11%、TFe 品位 45.

44%、硫回收率49.62% 的硫精矿。经济技术指标良好，可以为实际生产提供依据。

In order to reduce the production operation cost and further increase the ore processing ca⁃

pacity，the beneficiation optimization test was carried out on the grinding of Meishan Iron Mine. The two pro⁃

cess schemes of grinding (grinding fineness -0.075 mm accounted for 65%) -floating sulfur-sulfur tail low

intensity magnetic-high intensity magnetic process（scheme 1）and grinding coarse grinding (grinding fine⁃

ness -0.075 mm accounted for 50%) -gravity magnetic pulling tailings-gravity magnetic pulling concentrate

regrinding (grinding fineness -0.075 mm accounted for 65%) -floating sulfur-sulfur tail low intensity mag⁃

netic-high intensity magnetic separation（scheme 2）were compared respectively. The experimental results

show that by the process of scheme 2，the iron concentrate with yield of 49.88%，TFe grade of 58.29%，sul⁃

fur content of 0.20% and TFe recovery of 77.89%，and the sulfur concentrate with yield of 1.81%，sulfur

grade of 38.11%，TFe grade of 45.44% and sulfur recovery of 49.62% are obtained. The economic and tech⁃

nical indicators are good，which can provide a basis for actual production.

摘要：

梅山铁矿为降低生产运行成本并进一步增大矿石处理量，对入磨矿开展了选矿流程优

化试验研究。分别进行了入磨矿（磨矿细度-0.075 mm占 65%）—浮硫—硫尾弱磁—强磁流程（方案

1）和入磨矿粗磨（磨矿细度-0.075 mm占50%）—重磁拉丢尾—重磁拉精矿再磨（磨矿细度-0.075 mm

占65%）—浮硫—硫尾弱磁—强磁选（方案2）2种流程方案对比。试验结果表明：采用方案2试验，获得

了产率 49.88%、TFe品位 58.29%、含硫 0.20%、TFe回收率77.89% 的铁精矿，以及产率1.81%、硫品位38.11%、TFe 品位 45.

44%、硫回收率49.62% 的硫精矿。经济技术指标良好，可以为实际生产提供依据。

关键词:

工艺流程重磁拉回收率

Abstract: