选煤工程设计中多煤层煤质分析方法应用研究

以开滦集团东欢坨矿选煤厂为例，通过对比分析大量数据，提出多煤层煤质分析的新方法，通过工业分析指标、粒度特性和浮沉特性三个方面的论证将5个煤层合并为2个煤层进行煤质分析，在工业分析指标方面对比了煤种、灰分、硫分和发热量，粒度组成方面对比了煤层赋存条件和开采方法，浮沉组成方面对比了各密度级的基元灰分和浮物累计灰分。煤质分析过程得到简化，分析结果规律性更强，对实际生产也更具指导意义。

The New Method of Analysis Multi-seam Coal Quality

Taking Kailuan Group Donghuantuo Coal Preparation Plant as an example, the feasibility of combining five coal seams into two coal seams for coal quality analysis was demonstrated from three aspects of proximate analysis indicator, size consist and densimetric consist through comparative analysis of a large amount of data. In terms of proximate analysis indicator, coal, ash, sulfur and calorific value were compared. The coal seam occurrence conditions and mining methods are compared in terms of size consist. The density levels of elemental ash and floating ash were compared with each other in terms of densimetric cosist.