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陕西勉略阳三角区锰矿属低磷低铁 ,高硅或高磷低铁氧化锰矿。经长沙矿冶研究院DPMS永磁强磁选机一次磁选试验证实 ,在给矿粒级 - 6mm时 ,可将手选锰矿品位提高 4～ 8个百分点 ,锰回收率 90 % ;将跳汰精矿锰品位提高 10个百分点 ,锰回收率 91% ;将跳汰尾矿锰品位提高 9个百分点 ,锰回收率 90 %。提示本地区小型锰选厂应将现有的手选 ,跳汰等单一选别手段改造成为以强磁选为主的工艺流程
Manganese in the Mianlouyang Triangle area of Shaanxi Province is a low phosphorus and low iron, high silicon or high phosphorus low iron manganese oxide ore. The Changsha Institute of Mining and Metallurgy DPMS permanent magnetic separator magnetic separation test confirmed that the ore particles in the class - 6mm, the manganese ore grade can be increased by 4 to 8 percentage points, manganese recovery rate of 90%; will be jig Concentrate manganese grade increased by 10 percentage points, manganese recovery rate of 91%; tailings manganese grade increased by 9 percentage points, manganese recovery rate of 90%. Prompt small manganese plant in the region should be the existing hand selection, jigging and other single sorting means into a strong magnetic separation-based process