摘要
烟煤自燃程度低,伴随变质程度的变化,其自燃特性参数也发生着本质的变化,为了研究其变质程度对特性参数的影响关系,选取了4种变质程度烟煤,采用程序升温实验系统,对自燃过程中特性参数进行分析,并计算表观活化能;通过实验研究,得出变质程度低、粒度小的煤样表观活化能强,表现出来的自燃特性参数更易于自燃的发生和发展,因此,研究对揭示烟煤自燃提供了理论基础,更好地分析了变质程度对自燃特性参数的关系。
The spontaneous combustion level of bituminous coal is low and the spontaneous combustion characters also change with the change of metamorphic grade,in order to research the relationship between metamorphic grade and spontaneous combustion,we select four kinds of bituminous coal with different metamorphic grades to analyze the characters in the spontaneous combustion and calculate the performance activation energy through the temperature programmed system;through the research,we find that the performance activation energy of coal is powerful with low metamorphic grade and small particle size and it is more prone to spontaneous combustion,so,we analyze the relationship between metamorphic grade and spontaneous combustion well and provide the theory base for spontaneous combustion of bituminous coal.
作者
刘文永
文虎
王宝元
LIU Wenyong;WEN Hu;WANG Baoyuan(College of Safety Science and Engineering, Xi＇an University of Science and Technology, Xi＇an 710056, China)
出处
《煤矿安全》
北大核心
2017年第12期53-56,共4页
Safety in Coal Mines
基金
陕西省基础研究计划资助项目(2016JM5022)
关键词
煤自燃
烟煤
特性参数
变质程度
粒度
spontaneous combustion of coal
bituminous coal
characteristic parameter
metamorphic grade
particle size
