悬磁干选机及其应用

贫磁铁矿石入磨前的干式预选是选矿厂实现降本增效的重要手段之一。面对日渐贫化的磁铁矿石资源，针对传统磁滑轮预选存在的“精而不精，废而不废”问题，鞍山金裕丰选矿科技有限公司研发了一种新型贫磁铁矿石干式预选设备--悬磁干选机。在系统介绍了悬磁干选机的基本结构和工作原理的基础上，以2种贫磁铁矿石为研究对象、以悬磁干选机和磁滑轮为分选设备，进行了干式预选抛废效果对比试验，并介绍了悬磁干选机在3个矿山的行动情况。试验研究和生产实践均表明：悬磁干选机磁性铁回收效果更高、预选抛废更彻底、尾矿磁性铁含量更低。因此，悬磁干选机是一种新型、高效的贫磁铁矿石干式预选设备。

Hang Dry Separator and Its Application

It is an important mean for plants to decrease costs and increase efficiency by pre dry separation before grinding when dealing with lean magnetite ore.A new type dry separator for pre-separation of lean magnetite，hang magnetic dry separator was researched and developed by Anshan Jin Yufeng Beneficiation Technology Co.，Ltd.facing the problems of the gradually lean magnetite resources，and “concentrate are not really enriched and tailings cannot be discarded” when using conventional magnetic pulley for pre separation.On the basis of introduction about basic structure and working principle of hang magnetic dry separator，using two kinds lean magnetite ore as research object，and with hang magnetic dry separator and magnetic pulley as sorting equipment respectively，contrast experiments of dry pre-separation efficiency were conducted.Applications of hang magnetic dry separator in three mines were introduced.Both research and pilot experiments indicated that:hang dry separator has better iron recovery efficiency，can discard tailing more thoroughly，and tailings have lower content of magnetic iron.Thus，hang magnetic dry separator is a new high efficiency dry pre-separation device.