摘要
煤体内部存在各种各样的孔隙结构,大量瓦斯气体蕴藏在煤体孔隙结构当中,瓦斯在煤体之间处于吸附与游离两种状态,前者占绝大部分,比例达到90%左右。经过长时间的地质运动,煤体孔隙结构中吸附的瓦斯与游离的瓦斯逐渐形成了一种动态平衡。但是采煤工作会破坏这种动态平衡,原本处于吸附状态的瓦斯会转变为游离瓦斯,给煤炭开采工作造成严重的安全威胁。因此,相关工作人员通过对煤体变质程度以及煤体孔隙结构的分析,研究煤体变质程度以及孔隙结构对于瓦斯吸附/解吸特性的影响,为预防瓦斯突出与煤体突出提供数据参考。
There are various pore structures in the coal body,and a large amount of gas gas is stored in the coal body pore structure.The gas is in two states of adsorption and dissociation between the coal bodies.The former accounts for the majority,and the proportion reaches about 90%.After a long period of geological movement,the gas adsorbed and free gas in the coal pore structure gradually formed a dynamic equilibrium.However,coal mining will destroy this dynamic balance,and the gas originally in the adsorbed state will be transformed into free gas,which will pose a serious safety threat to coal mining.Therefore,relevant staff studied the effect of coal metamorphism and pore structure on gas adsorption/desorption characteristics by analyzing the coal metamorphism degree and coal pore structure,and provided data reference for the prevention of gas outburst and coal body outburst.
作者
杨红红
Yang Honghong(Shanxi Standard Inspection and Certifi cation Co.,Ltd.,Shanxi,030000)
出处
《当代化工研究》
2022年第13期13-15,共3页
Modern Chemical Research
关键词
煤体变质
孔隙结构
煤与瓦斯突出
coal metamorphism
pore structure
coal and gas outburst
