原煤的可选性及其入洗可行性分析  

Feasibility Analysis of Raw Coal Washability and its Washing

作　　者：周明磊[1,2] 张德鹏[1,2] 

机构地区：[1]煤炭科学研究总院沈阳研究院,辽宁沈阳110016 [2]煤矿安全技术国家重点实验室,辽宁沈阳110016

出　　处：《煤矿安全》2012年第5期173-177,共5页Safety in Coal Mines

摘　　要：某中央型选煤厂入选的原煤来源于2个矿井,为确定其合理的选煤工艺,对2个矿原煤的可选性进行分析并运用分组分级判定方法判断其是否符合混合入洗、分级入选的条件。分析表明2个矿原煤采用混合入洗能够遵循此选煤厂最大产率原则,但2个矿原煤不具备分级的条件,综合得出该选煤厂的可选性曲线图,为其正确选择洗选方法和工艺流程提供理论支持和技术指导,以使该选煤厂达到最佳经济效益。In order to determine reasonable coal preparation process for a certain central coal preparation plant whose raw coal is sourced from two different mines,washability of the raw coal was analyzed and the grouping-and-sizing way was used to judge whether the raw coal could accord with conditions of mixture washing and coal feed classified separation.Analysis shows that the raw coal of two mines adopted mixture washing could obey the rule of maximum yield,but it do not have grading condition.At last,the washability curve of this coal preparation plant was achieved comprehensively;it could provide theoretical support and technical guidance for selecting coal preparation and cleaning methods and technology process properly to achieve the best economic benefit.

关 键 词：原煤 选煤厂 可选性 混合入洗 分级入选 

分 类 号：TD913[矿业工程—选矿]