【摘要】 进行了三个煤矿的煤和矸石主要力学性质的实验测定,对不同矿的煤和矸石根据粒径进行了分级,对分级后的各组煤和矸石的静态破碎差别进行了实验研究和分析比较,得出了煤和矸石静态破碎差别的规律和一些主要数据。分析发现,煤和矸石在破碎时的外加载荷服从正态分布,它们之间存在一个临界破碎载荷,为煤和矸石破碎分选实验机的研制提供了关键参数。更多还原

【Abstract】 In this paper,based on the characteristics of waste rock and charcoal,a critical parameter is caculated for the mixture of coal and gangue when its crushed and separated.The main data and relationship about coal and waste rock are found by experiments.The project aims to provide a theoretical basis for the development of break and separation equipment.更多还原