全尾砂絮凝沉降工艺研究  

Research on Flocculation Sedimentation Technology of Unclassified-tailings

作　　者：彭乃兵[1,2] 吴爱祥[1,2] 王洪江[1,2] 孙伟[1,2] 陈辉[1,2] 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《矿业研究与开发》2015年第7期35-38,共4页Mining Research and Development

基　　金：国家自然科学基金项目(51374034);"十二五"国家科技支撑计划课题项目(2012BAB08B02)

摘　　要：在膏体充填料浆制备过程中,全尾砂的絮凝沉降是关键技术。在分析某矿山全尾砂性质的基础上,对该全尾砂的絮凝沉降规律进行了研究,确定了最佳絮凝剂单耗为25g/t,最佳入料浓度为15%,最佳絮凝剂浓度为0.3%。根据沉降过程的单位面积处理能力,确定该矿浓密机的直径应为16m,为矿山全尾砂膏体制备创造了基础条件。Flocculation sedimentation of unclassified-tailings is a key technology in preparing paste filling slurry. Based on the analysis on the properties of unclassified-railings in a mine, the flocculation sedimentation rule was studied. It ob- tained that the best flocculants consumption per unit was 25 g/t, the optimal feed concentration was 15% and the optimum flocculants concentration was 0.3%. According to the treatment ability per area during settlement, the diameter of thickener should be 16 m, which created foundation for the preparation of unclassified-tailings paste slurry.

关 键 词：絮凝沉降 全尾砂 膏体充填 深锥浓密机 

分 类 号：TD926.4[矿业工程—选矿]