宁芜地区铁矿资源较为丰富,是华东地区钢铁工业发展的重要原料基地之一。其中贫铁矿占有相当大的比重,虽然采用了各种选别流程,仍存在着生产指标偏低,-44微米的细颗粒难以回收,尾矿品位偏高,金属流失严重等问题。为此,该地区根据矿石性质的变化和各个选矿厂生产的特点,对现有工艺生产流程进行改革,采用了新设备,新技术,使选矿指标有所 Ningwu area is rich in iron ore resources, is the development of iron and steel industry in eastern China one of the important raw materials base. Iron ore accounts for a considerable proportion, although the use of a variety of sorting process, there are still low production targets, there are still difficult to recover the fine particles of -44 microns, high grade tailings, metal loss and other serious problems. To this end, the region in accordance with the changes in the nature of the ore and the characteristics of the various concentrator production, the existing process of production process reform, the introduction of new equipment, new technologies, so that beneficiation index