摘要
为研究粒度对长焰煤瓦斯放散规律的影响,通过建立能够容纳大质量煤样的吸附解吸实验系统,模拟煤样的放散过程。以粒度变化为主要因素,研究不同破坏类型的干燥煤样在恒温(30±1)℃和恒压0.74MPa条件下的长焰煤瓦斯放散规律,并结合软硬煤的孔隙结构,分析不同煤样的瓦斯放散量、放散初速度的差异性。
In order to investigate the influence of granularity on gas diffusion law,the gas adsorption and desorption experiment system was built which could accommodate massive coal samples,to simulate the gas diffusion process.Taking granularity change as the main factor,the gas diffusion law of long flame coal was studied on dry coal samples with different damage types at constant temperature（30± 1） ℃ and constant pressure 0.74MPa.Combined with the pore structure of soft coal and hard coal,the differences were analyzed about the diffusion amount and the diffusion initial speed of different coal samples.
出处
《煤矿安全》
CAS
北大核心
2015年第4期9-12,共4页
Safety in Coal Mines
关键词
长焰煤
粒度
恒温恒压
孔隙结构
瓦斯放散规律
long flame coal
granularity
constant temperature and constant pressure
pore structure
gas diffusion law
