低阶烟煤煤泥的深度浮选工艺研究  

Research on depth flotation technology of low rank bituminous coal slime

作　　者：刘红娜 LIU Hong-na(Tangshan Research Institute,China Coal Technology and Engineering Group;Coal Separation Engineering and Technology Research Center of Hebei Province,Tangshan,Hebei 063012,China)

机构地区：[1]中煤科工集团唐山研究院有限公司 [2]河北省煤炭洗选工程技术研究中心,河北唐山063012

出　　处：《煤炭加工与综合利用》2021年第11期7-11,共5页Coal Processing & Comprehensive Utilization

基　　金：唐山市重点科技计划项目(19150249E)。

摘　　要：低阶烟煤浮选工艺中,同时高效获得低灰精煤和高灰尾煤的技术难度较大;以榆北某选煤厂不粘煤煤泥为试验对象,从表面性质、药剂选择、药剂制度优化以及浮选工艺等多个角度进行探讨,为扩大低阶烟煤浮选经济效益提供了一定的基础数据。In the flotation process of low rank bituminous coal,it is difficult to obtain low ash clean coal and high ash tail coal at the same time;Taking the non stick coal slime of a coal preparation plant in Yubei as the test object,it is discussed from the aspects of surface properties,reagent selection,reagent system optimization and flotation process,which provides some basic data for expanding the economic benefits of low-order bituminous coal flotation.

关 键 词：低阶烟煤 煤泥 深度浮选 药剂制度 浮选速度 工艺流程 

分 类 号：TD943[矿业工程—选矿]