型煤冷态强度影响因素的光学显微分析  

OPTICAL MICROSCOPIC ANALYSIS OF FACTORS INFLUENCING COLD STRENGTH OF BRIQUETTES

作　　者：王越[1] 白向飞[1] 王东升[1] 张宇宏[1] 刘明锐[1] 

机构地区：[1]煤炭科学研究总院北京煤化工研究分院,国家能源煤炭高效利用与节能减排技术装备重点实验室,北京硕士生助理工程师100013

出　　处：《煤炭转化》2013年第2期79-82,96,共5页Coal Conversion

摘　　要：利用光学显微分析及数字图像处理技术获取型煤显微结构特征,研究不同膨润土黏结剂的添加量及成型压力下型煤显微结构与型煤强度间的关系.结果表明,型煤的冷态强度主要受型煤中的裂隙控制,而型煤中的空隙是次要影响因素.型煤中的裂隙产生与使用的黏结剂、成型压力及原料煤性质相关,而型煤中的空隙与外加水分相关.The primary issue concerning briquette manufacture was the strength of the briquettes, which was dominated by its microstructure. The relationship between microstructure of briquettes made by different amount of bentonites with different pressure and its streng.th was studied using optical microscopic analysis method and digital image processing technology. The strength of briquettes was controlled by its fracture, followed by its porosity. The emerging of fracture in briquettes was related to the binders used, the pressure loaded and the properties of feed coals, while porosity related to water added.

关 键 词：型煤 冷态强度 显微结构 光学分析 图像处理 

分 类 号：TQ536[化学工程—煤化学工程] TQ531.2