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.%In order to study the influence of continuous-interrupted radiation effect of microwave field on the gas desorption characteristics of coal particle , the change rules of gas desorption quantity and desorption rate of tectonic coal particle under the continuous-interrupted microwave radiation of 10 s, 20 s, 40 s and without the microwave radiation were studied and ana-lyzed based on the self-developed experimental apparatus .The thermal effect produced by the microwave was simulated by u-sing the water-bath heating device , then the influence of thermal effect of microwave on promoting the gas desorption of coal particle was studied .The results showed that in the continuous action time of microwave , both the gas desorption quantity and desorption rate increased rapidly , but they attenuated more quickly with the extension of time , and finally the gas desorp-tion quantity tended to a certain value .The gas desorption quantity under the continuous-interrupted microwave radiation was 1.83~3.93 times of that without the microwave radiation .The influence of thermal effect produced by microwave radiation on gas desorption was obvious , with the weight of more than 82%, however , the influence of non-thermal effect could not be ignored .The experimental methods and results can provide reference for promoting the tectonic gas desorption and reducing the risk of coal and gas outburst .
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