摘要
基于Busch单孔模型结合Fick第二定律构建了低阶煤损失气量的数学模型,修正了美国USBM方法测试含气量公式。以新疆阜康矿区低阶煤层为研究对象,分别采用修正模型法、等温吸附反演法、美国USBM法进行含气量计算或测试。结果表明:美国USBM法对损失气量估算不准确,其结果比修正模型法和等温吸附反演法低1~3.5 m^3/t。修正后的含气量计算结果与等温吸附反演结果相差不大,更能较真实的反映低阶煤层实际含气量。
Based on Busch hole model combined with Fick＇s second law, we built the mathematical model of low rank coal loss volume, and revised USBM gas content testing method. According to the testing data of low rank coal in Fukang Mining Area, we calculated or tested gas content by modified model, USBM method and adsorption isotherm inversion method. The results show that the calculated loss gas volume by USBM method is not accurate; the calculated result is lower than 1 m^3/t to 3.5 m^3/t of modified model or the isothermal adsorption inversion. The calculated results of gas content by the modified and the results by the isothermal adsorption inversion are similar, which can reflect the actual gas content of the low rank coal.
出处
《煤矿安全》
CAS
北大核心
2017年第2期153-155,159,共4页
Safety in Coal Mines
基金
河南省高校科技创新人才资助项目(15HASTIT050)
