摘要
为了给马钢某矿山综合尾矿的较高浓度浓缩提供技术依据,对该综合尾矿进行了静态和动态的自然沉降和絮凝沉降试验。静态试验表明:浓度为12%的尾矿浆自然沉降时,要在浓缩层浓度达到40%以上的同时使澄清层悬浮物含量达标,需沉降25 min以上;而采用5 g/t的3#絮凝剂进行絮凝沉降,可使满足上述要求的沉降时间减少到10min以内。动态试验表明:在同样满足底流浓度和溢流水悬浮物含量要求的情况下,絮凝沉降的浓密机单位面积处理量可比自然沉降提高96.97%。
In order to provide a technical basis for concentration of a higher concentration of tailings in Masteel company, the static and dynamic natural sedimentation and flocculation-settling tests on these tailings are carried out. The stat- ic tests showed that when the tailing concentration is 12% , it required over 25 rain to realize more than 40% concentration for the natural settlement, while suspended solids concentration in settling layers can be up to the requirement. While using 3^# flocculation of 5 g/t, the settling time can be reduced within 10 rain. And the dynamic tests showed that with the same concentration and the underflow suspended solids content required, the flocculation and settling capacity of thickener per unit can be increased by 96.97% than that of the natural subsidence.
出处
《金属矿山》
CAS
北大核心
2010年第2期175-178,共4页
Metal Mine
关键词
粗细粒尾矿
自然沉降
絮凝沉降
3#絮凝剂
Coarse tailings, Natural settling, flocculation and settling, 3^# Flocculant
