摘要:
针对都龙矿区尾矿沉降困难的问题,以铜街尾矿为研究对象进行静态沉降试验、单因素条件试验和工业试验.确定了絮凝剂种类为1000 W阴离子型聚丙烯酰胺,用量为30 g/t;采用斜板浓密机进行处理尾矿,当底流排放浓度为30% ~ 40%时,可获得溢流水浊度小于300 mg/1,斜板处理量达到了200 ~ 220 m3/h,设备回水率达到70%以上的优良指标.与普通的沉降槽相比,设备单位占地面积处理量提高了4.3倍,回水率提高了2倍,具有巨大的经济效益和社会效益.
Abstract:
For the difficult problem of tailings'settlement in Dulong mine area,TongJie tailings were taken as the re search object for static settling test,single factor test and industrial test.The types of flocculant for 1000 w anionic polyacrylamide were determined,and its dosage of is 30 g/t;Using lamella thickener for processing tailings,when the underflow emission concentration is 30% ~ 40%,it can obtain the turbidity of overflow less than 300 mg/L,the capacity of inclined plate can reach 200 ~220 m3/h,the equipment backwater rate is 70% or more of the excellent indicators.Compared with ordinary settling tank,the equipment unit area capacity was increased 4.3 times,the backwater rate was increased 2 times,and it has a great economic and social benefits.
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