高压吸附下的瓦斯放散初速度研究

Study on Initial Speed of Methane Diffusion in the Condition of High Pressure Absorption

实验中将常压吸附改为高压吸附,并适当改变其它实验参数,利用抚顺分院在国家"十五"攻关中研制的仪器对煤样0～60s内的放散速度规律进行研究,计算其放散量、曲线变化率、放散初速度和衰减规律,进而提出更合理、更全面、物理意义更明确的突出预测指标。

Normal pressure is changed into high pressure in laboratory, meanwhile other parameters can be properly corrected ,diffusion speed law of coal samples within 0～60s is studied by using the device which was developed by Fushun Branch of CCRI in 'the tenth five -year plan ' project , its diffusion rate ,curve changing rate, initial speed of diffusion and attenuation law is calculated, thus proposing more reasonable, more complete and clearer in physical meaning outburst prediction index.