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一、细磨是提高技术指标的重要途径 (一)细磨能大幅度地提高技术经济指标近年来不断出现原矿细磨、粗尾再磨、粗精矿再磨、中矿再磨等提高了选矿指标,降低了成本。 1.某铅锌矿石采用原矿细磨提高了技术指标(表1) 由表1可知,原矿细磨后铅的回收率提高3.24％,除高碱浮选制度这个因素外,细密可提高1.5～2.0％。又铅回收率之提高,使锌精矿中含铅量降低,从而提高了精矿质量。据计算年净增200～300万元。
First, the fine grinding is an important way to improve the technical indicators (A) fine grinding can greatly improve the technical and economic indicators In recent years, continue to appear fine ore mill, coarse tail resurface, rough concentrate reground, mine re-grinding and so improve Mineral processing indicators, reducing costs. 1. A lead-zinc ore using ore fine grinding to improve the technical indicators (Table 1) From Table 1 we can see that the fine ore recovery of lead after the recovery of 3.24%, in addition to the high base flotation system this factor, the fine can be increased by 1.5 ~ 2.0%. Lead recovery and the improvement of lead in zinc concentrate to reduce, thereby enhancing the quality of concentrate. According to the calculation of a net increase of 200 to 300 million.