露天矿采场磁性铁的分布规律分析研究

DISTRIBUTION RULE OF MAGNETIC IRON IN THE STOPE OF OPEN-PIT MINE

金堆城钼业股份有限公司在回收钼的同时,对品位不足1%的磁性铁也进行了回收利用。磁性铁主要以磁铁矿、雌黄铁矿的形式存在。磁性铁在露天矿采场分布极不均布,在安山玢岩中含量最高,在花岗斑岩中含量较低,在石英岩含量最低。采场磁性铁的含量变化可能给选铁车间组织生产带来困难。

Magnetic iron with the grade less than 1% has been recycled while recovering molybdenum in Jinduicheng Molybdenum Co.,Ltd. Magnetic iron mainly exists in the form of magnetite and pyrite. The distribution of magnetic iron in the stope of open-pit mine is extremely uneven,and the content of magnetic iron is the highest in andesitic porphyrite,low in granitic porphyry and the lowest in quartzite. The content variation of magnetic iron in stope may bring difficulties to the organization and production of iron dressing workshop.