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铁坑选矿厂采用强磁-浮选流程,所产精矿经浓缩-过滤脱水。因精矿细粘,造成脱水困难,滤饼水分高达21%,过滤效率仅0.20吨/米~2·台·时。为此,我们采用聚丙烯酰胺作絮凝剂,进行絮凝-过滤试验,取得了较满意的效果。试料为生产待滤矿浆,浓度68%;pH7.5—7.8;+200目11.99%,-200+300目10.43%,-300+400目16.16%,-400目61.42%;沉降速度2.14米/日;T_(Fe)50.30%。试验流程为试料加
Tiekeng concentrator using strong magnetic - flotation process, the concentrate produced by the concentration - filtered dehydration. Due to the fine sticky concentrate, resulting in dehydration difficulties, the filter cake up to 21% moisture, filtration efficiency of only 0.20 tons / m ~ 2 Taiwan time. To this end, we use polyacrylamide as flocculant, flocculation - filtration test, and achieved more satisfactory results. The sample was prepared to be leached slurry with a concentration of 68%; pH 7.5-7.8; 11.99% of +200 mesh; 10.43% of -200 + 300 mesh; 16.16% of - 300 + 400 mesh; 61.42% of 400 mesh; / Day; T_ (Fe) 50.30%. Test procedure for the sample plus