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本文介绍了立环湿式强磁选机的结构、性能及其对多种弱磁性矿物的分选效果。立环式磁选机最突出的特点在于其分选环是绕水平轴转动,分选过程的给矿段与卸矿段矿浆的流动方向倒转,分选室内的聚磁介质每完成一次选别过程便随之翻倒一次,使容易堵塞介质空间的杂质及强磁性矿物易于排卸,较好地解决了分选环室的堵塞问题,同时可以减少隔除杂物的辅助设施,简化了工艺流程。该机采用日字型闭合磁路,整机结构紧凑,机体小而轻,重心低而运转平稳。磁场强度可达17000～20000高斯。设备性能良好,用来选别褐铁矿时,给矿含铁46.15％,精矿含铁55.30％,精矿回收率88.08％;用以选别含菱锰矿,锰方解石的现场尾泥,经一次粗选一次精选,可从含MnO_211.30％的原料中得到品位为21.23％回收率为63.47％的锰精矿;用以选收黑钨矿、铌铁矿,分选锂辉石与角闪石等均有较好的效果。
This paper introduces the structure, performance of the vertical ring wet magnetic separator and its separation effect on many kinds of weak magnetic minerals. Vertical ring magnetic separator most prominent feature is that the sorting ring is rotated around the horizontal axis, the separation process to the ore section and ore discharge section of the pulp flow direction reversal, the sorting chamber of the magnetic separation media to complete each selection The process will be overturned once, so easy to plug the media space impurities and strong magnetic minerals easy to discharge, to better solve the clogging of sorting ring chamber, while reducing the debris isolation facilities, simplifying the process Process. The machine uses Japanese font closed magnetic circuit, the whole structure is compact, the body is small and light, low center of gravity and smooth operation. Magnetic field strength up to 17000 ~ 20000 gauss. Equipment performance is good, for the selection of limonite, 46.15% iron ore, concentrate 55.30%, 88.08% of the ore recovery rate; used to choose containing rhodochrosite, manganese calcite tailings tailings, the A rougher selection, from MnO_211.30% of the raw materials obtained grade 21.23% recovery 63.47% manganese concentrate; for the selection of wolframite, columbite, sorting spodumene and Amphibole, etc. have better results.