尾矿分级脱水-浓缩干排工艺及设备  

Process and equipments of grading dehydration and concentration dry disposal of tailings

作　　者：李琳[1] 吕宪俊[1] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266590

出　　处：《矿山机械》2014年第1期100-103,共4页Mining & Processing Equipment

基　　金：国家自然科学基金资助项目(51104095);中国博士后基金资助项目(2012M511534);山东科技大学科研创新团队支持计划项目(2012KYTD102)

摘　　要：提出了一套新型尾矿干排工艺,即尾矿分级脱水-浓缩干排工艺,该工艺通过新型多段变锥旋流器将尾矿分级,粗粒通过高频筛脱水干堆,细粒及微细粒通过浓缩工艺脱水干排,可低成本、高效地实现尾矿的干堆排放以及水的循环利用,尤其是无耙高效浓缩机的引入,从根本上解决了细粒及微细粒尾矿高效脱水的难题。该工艺目前已在多个矿山得到应用。A new type of tailings dry disposal process was proposed, which was grading dehydration and concentration dry disposal of tailings. During the process, railings were classified by the new-type multistage variable-speed cone cyclone, and then coarse grains were dehydrated and heaped dryly via the high- frequency screen, while fine and superfine grains were dehydrated and dryly disposed by the concentration technology. Therefore, the dry heaping and disposal of railings as well as water recycling were realizedefficiently at low cost. Particularly, with the introduction of the efficient no-raking thickener, the efficient dehydration oftailings with fine and superfine grains was achieved radically. The process has been applied in many mines so far.

关 键 词：尾矿干排 多段变锥旋流器 无耙高效浓密机 

分 类 号：TD926.4[矿业工程—选矿]