Beijing Research Institute of Coal Chemistry, China Coal Research Institute National Key Lab of Coal Resource
High Efficient Mining and Clean Uillization

为研究型煤制备工艺与性能之间的关系,以指导生产工艺优化,利用单偏光显微镜及数字图像处理技术对不同黏结剂添加量和成型压力下制备的型煤空隙总体特征,以及水平方向与垂直方向上空隙分布特征进行研究,深入分析了空隙直径、位置及定向程度等特征。研究结果表明:不同黏结剂添加量及成型压力制备的型煤中空隙率差别较大;型煤水平方向与垂直方向上空隙率不同,水平方向上空隙直径较为集中;型煤空隙分布不均匀,定向程度差;型煤空隙从表面到内部有增大趋势。

In order to study the relationship between briquette preparation technique and performances and guide the optimization of the production technique, a si ngle polarized microscope and digital image processing technology were applied to two aspacts study, which the total void features and the horizontal and vertical void distribution features of the briquette prepared with different quality binder and different pressure, and to the deep analysis on the void diameter, location, orientation de gree and other features. The study results showed that the void rate of the briquette prepared with different quality binder and different pressure would be have big diffe rence. The horizontal and vertical void rates of the briquette would be different and the horizontal void diameter would be concentrated. The void distribution of the briq uette would be inhomogeneous and the orientation degree would be poor. The void of briquette from the surface to the internal would be in an increasing tendency.

“十二五”国家科技支撑计划资助项目(2012BAA04B01)；国家国际科技合作专项资助项目(2012DFR60360)；