通过对低品位弱磁性铁矿磁选技术的研究,及对内蒙古东源铁矿的调查,提出强磁干选预先粗选,湿式磨矿弱磁精选技术和工艺。干选采用永磁辊式强磁选机,水选采用CHC1545永磁筒式磁选机。在原矿全铁平均品位27.50%,磁性铁平均品位8.57%的条件下,磁选精矿品位可达67%,铁回收率95%。 Based on the research on magnetic separation technology of low-grade weak magnetic iron ore and the investigation of Dongyuan iron ore in Inner Mongolia, the technology of pre-rougher and wet-grinding weak magnetic separation is proposed. Dry election using permanent magnetic roller strong magnetic separator, water CHC1545 permanent magnet cylinder magnetic separator. Under the condition of the average grade of whole iron in the ore is 27.50% and the average grade of magnetic iron is 8.57%, the grade of the magnetic separation concentrates can reach 67% and the iron recovery rate can reach 95%.