内蒙古某低品位大鳞片石墨矿选矿试验研究
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摘要
为更好开发利用低品位大鳞片石墨,针对内蒙古某低品位大鳞片石墨矿进行了选矿试验研究。在磨矿介质为棒磨、磨矿浓度60%、-0.15 mm 59.43%、浮选浓度23%、煤油105 g/t、2#油55 g/t、浮选时间3 min的粗选条件下,采用2段粗磨粗选、1段扫选、6段再磨7次精选、合格大鳞片石墨预先分级、中矿返回的闭路流程,获得固定碳为90.37%的+0.3 mm产品,固定碳含量为90.21%的-0.3+0.15 mm产品,+0.15 mm产品大鳞片综合保护率为74.36%。
The study on beneficiation of a graphite ore in Inner Mongolia to exploit and utilize the fine scales and large flake graphite ore was carried on. In the roughing condition of grinding medium for the steel bar,grinding concentration of 60%,-0.15 mm content of 59.43%, flotation concentration of 23%, kerosene dosage105 g/t, 2# oil dosage 55 g/t, flotation time of 3 min, the +0.3 mm concentrate with fixed carbon content of90.37% and-0.3+0.15 mm concentrate with fixed carbon content of 90.21% were obtained by the closedcircuit flowsheet of two-stage roughing grinding and flotation, one-stage scavenging, six-stage regrinding and seven cleaning, qualified large flake graphite pre-classification, middles returning. The comprehensive protection rate of the large scale of the product was 74.36%.
The study on beneficiation of a graphite ore in Inner Mongolia to exploit and utilize the fine scales and large flake graphite ore was carried on. In the roughing condition of grinding medium for the steel bar,grinding concentration of 60%,-0.15 mm content of 59.43%, flotation concentration of 23%, kerosene dosage105 g/t, 2# oil dosage 55 g/t, flotation time of 3 min, the +0.3 mm concentrate with fixed carbon content of90.37% and-0.3+0.15 mm concentrate with fixed carbon content of 90.21% were obtained by the closedcircuit flowsheet of two-stage roughing grinding and flotation, one-stage scavenging, six-stage regrinding and seven cleaning, qualified large flake graphite pre-classification, middles returning. The comprehensive protection rate of the large scale of the product was 74.36%.
引文
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