助磨剂对氧化铁矿石磨矿动力学行为的影响

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为了提高氧化铁矿石的磨矿效率,研究NM-3、油酸钠、六偏磷酸钠、氟硅酸钠、乙酸铵和羧甲基纤维素钠对氧化铁矿石的助磨效果;基于均匀试验设计方法,确定添加乙酸铵和NM-3的最佳质量分数;在添加与不添加助磨剂情况下,针对氧化铁矿石分别进行分批磨矿试验,分析助磨剂对氧化铁矿石磨矿速度的影响.研究结果表明:无机助磨剂中焦磷酸钠和乙酸铵的助磨效果较好,有机助磨剂中NM-3的助磨效果较好;NM-3和乙酸铵共同使用助磨效果最好,添加NM-3和乙酸铵的最佳质量分数分别为0.30%和0.13%;添加NM-3和乙酸铵与不添加助磨剂相比,粗粒级和细粒级磨矿速度均显著提高.
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