微波辐照作用对颗粒煤瓦斯解吸特性影响实验研究

发布时间：2018-09-09 19:02

【摘要】：为了研究微波场连续-间断辐照作用对颗粒煤瓦斯解吸特性的影响,通过自制的实验装置,分析研究了微波连续-间断作用10,20,40 s及无微波作用下的构造煤颗粒瓦斯解吸量及解吸速率变化规律,并采用水浴加热装置模拟微波产生的热效应,研究了微波热效应在促进煤粒瓦斯解吸中的影响。实验结果表明:在微波连续作用时间内,瓦斯解吸量和解吸速率均迅速增大,然而随着时间的延长衰减较快,最终瓦斯解吸量趋向于一定值,微波连续-间断辐照作用下的瓦斯解吸量是无微波加载作用下的1.83~3.93倍;微波产生的热效应对瓦斯解吸影响较为显著,权重达82%以上,然而其非热效应的影响也不可忽视。实验方法与结果可望为促进构造瓦斯解吸、降低煤层突出危险性提供参考。
[Abstract]:In order to study the effect of continuous and intermittent microwave field irradiation on the gas desorption characteristics of granular coal, a self-made experimental device was developed. The variation of gas desorption capacity and desorption rate of tectonic coal particles under continuous and intermittent microwave action of 10 ~ 20 ~ 40 s and without microwave is analyzed and studied, and the thermal effect produced by microwave is simulated by water bath heating device. The effect of microwave thermal effect on promoting coal gas desorption was studied. The experimental results show that the amount of gas desorption and the desorption rate increase rapidly during the continuous action of microwave. However, with the prolongation of the time, the gas desorption tends to a certain value. The amount of gas desorbed under continuous and intermittent microwave irradiation is 1.83 ~ 3.93 times as much as that without microwave loading, and the heat effect produced by microwave has a significant effect on gas desorption, with a weight of more than 82%, but the influence of non-thermal effect should not be ignored. The experimental methods and results are expected to provide a reference for promoting structural gas desorption and reducing the danger of coal seam outburst.
【作者单位】：河南工程学院安全工程学院;河南理工大学安全科学与工程学院;
【基金】：国家自然科学基金项目(51474094) 河南省科技攻关项目(152102310322)
【分类号】：TD712

【相似文献】