黄金科学技术 ›› 2019, Vol. 27 ›› Issue (6): 896-902.doi: 10.11872/j.issn.1005-2518.2019.06.896
Qian KANG1,2(),Yunmin WANG1,Yan HE3,Xilong XUE2,Chuxuan ZHANG2()
摘要:
针对江西某铅锌矿全尾砂难以浓缩的问题,研究探索添加絮凝剂提高其浓缩效果的可行性。对该全尾砂浆体分别进行固液两相耦合条件下静态和动态絮凝沉降正交试验,确定尾砂浆絮凝沉降规律,对絮凝剂选型、用量和给料速度等关键参数进行优化。结果表明:当给料速度由0.89 t/(m2·h)减少至0.60 t/(m2·h)时,溢流水固含量逐渐降低;当给料浓度为13.59%,AH-910-SH型絮凝剂浓度为20 g/t,给料速度为0.60 t/(m2·h)时,底流浓度达到最大值72.82%,溢流水固含量为162.68×10-6(<300×10-6),絮凝沉降效果最佳。该试验为全尾砂快速沉降技术奠定了理论基础,同时为全尾砂高浓度充填方案选择提供了技术参考。
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