安宁磷矿浮选厂选矿回水试验研究

Research on backwater of mineral processing at Anning dressing plant

通过对云磷公司安宁磷矿选矿回水进行试验研究,确定影响磨矿作业的悬浮物量为2 000 mg/L,确定影响浮选作业的钙离子量为150 mg/L.废水处理以消除SO42-、PO43-、Ca2+等有害残留离子为主,尽可能确保这三种离子含量与自来水相近,从而避免杂质离子对浮选产生影响.处理后回水返回浮选作业,浮选指标接近清水指标,不影响浮选作业及其后续加工作业.

A research on backwater of mineral processing at Anning dressing plant of Yunnan Phosphate Chemical Group. ,LTD is carried out to determine the influence factors. The suspended matter content that impacts on grinding operation is 2 000 mg/L, and the calcium ion content that affects flotation operation is 150 mg/L. The wastewater treatment is mainly aimed at removing harmful and residual ions to make those ions content similar to the tap water, so as to avoid influences of impurities to flotation operation. The backwater after well treated returns to flotation operation, and the flotation indexes are similar by using the regular water and the backwater, which has no effects on flotation operation and its following operations.