电磁波激励下不同水分含瓦斯煤吸附/解吸规律研究  

Study on adsorption/desorption law of gas-bearing coal with different moistures under electromagnetic wave excitation

作　　者：马凯 巴全斌 Ma Kai;Ba Quanbin(CCTEG Chongqing Research Institute,Chongqing 400037,China;State Key Laboratory of Coal Mine Disaster Prevention and Control,Chongqing 400037,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]煤矿灾害防控全国重点实验室,重庆400037

出　　处：《能源与环保》2025年第1期14-20,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：重庆市英才计划项目(cstc2024ycjh-bgzxm 0141);天地科技股份有限公司科技创新创业资金专项项目(2022-2-TD-ZD009);中煤科工集团重庆研究院有限公司企业重点研发项目(2022ZDXM11)。

摘　　要：针对低压、低渗、低饱和度等地质条件下地面和井下瓦斯采收率低的问题,开展了电磁波激励下不同水分含瓦斯煤吸附/解吸规律的试验研究,旨在通过外部电磁波激励手段提高瓦斯的解吸速度和效率,从而整体提高抽采率。研究结果表明,随着电磁波辐射功率的提高,可有效提升煤体瓦斯的解吸效果;在高功率电磁波(30 W)作用下,瓦斯吸附/解吸量对含水率的变化表现出更为显著的敏感性;基于欧拉函数(Extreme Cum)的三维模型有效表征了电磁波辐射功率、煤体水分和平衡瓦斯压力之间的相互作用,揭示了在不同条件下煤体含气量的变化规律。Aiming at the problem of low gas recovery rate on the ground and underground under geological conditions such as low pressure,low permeability and low saturation,an experimental study on the adsorption/desorption law of gas-bearing coal with different moistures under electromagnetic wave excitation was carried out.The purpose was to improve the desorption speed and efficiency of gas by means of external electromagnetic wave excitation,so as to improve the overall extraction rate.The results showed that with the increase of electromagnetic wave radiation power,the desorption effect of coal gas can be effectively improved.Under the action of high power electromagnetic wave(30 W),the adsorption/desorption amount showed more significant sensitivity to the change of moisture content.The three-dimensional model based on Euler function(Extreme Cum)effectively characterized the interaction between electromagnetic wave radiation power,coal moisture and equilibrium gas pressure,and revealed the variation law of coal gas content under different conditions.

关 键 词：电磁波 含水率 含气量 吸附/解吸 采收率 

分 类 号：TD712[矿业工程—矿井通风与安全]