温度对构造煤解吸初期规律实验研究  

Experimental Study on Influence Laws of Temperature on Tectonic Coal Desorption in Initial Stage

作　　者：李希建[1,2,3] 陈刘瑜 刘钰 LI Xijian;CHEN Liuyu;LIU Yu(Mining College,Guizhou University,Guiyang,Guizhou 550025,China;Engineering Center forSafe Mining Technology Under Complex Geologic Condition,Guiyang,Guizhou 550025,China;Institute of Gas Disaster Prevention and Coalbed Methane Development of Guizhou University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]复杂地质矿山开采安全技术工程中心,贵州贵阳550025 [3]贵州大学瓦斯灾害防治与煤层气开发研究所,贵州贵阳550025

出　　处：《矿业研究与开发》2019年第6期73-75,共3页Mining Research and Development

基　　金：国家自然科学基金项目(51874107);贵州省重大应用基础研究项目(黔科合JZ字[2014]2005);贵州省教育厅项目(黔教合KY字(2013)112)

摘　　要：为了研究恒压条件下,变温作用对构造煤解吸时初期瓦斯解吸量的变化规律,以黔北某矿构造煤为研究对象,采用HCA型瓦斯吸附仪对构造煤在不同温度条件下进行解吸实验,绘制瓦斯解吸量随时间的变化曲线,分析变温作用对构造煤解吸初期瓦斯解吸量的影响规律。研究表明:构造煤的瓦斯解吸量随着温度的升高而增大,构造煤初期瓦斯解吸分3个阶段,分别为解吸初期1min内快速解吸、2~30min内缓慢解吸、30min以后稳定解吸;变温作用下构造煤解吸初期瓦斯解吸量和时间的关系符合Logistic模型,温度越高,其拟合效果越好。In order to study the change law of gas desorption amount in the initial stage of tectonic coal desorption with variable temperature under constant pressure,a tectonic coal mine in northern Guizhou was taken as the research object.HCA gas adsorber was used for desorption experiments on tectonic coal under different temperatures.The curve of gas desorption amount changing with time was drawn,and the influence laws of variable temperatures on gas desorption amount in the initial stage of tectonic coal desorption were analyzed.The results showed that the gas desorption amount of tectonic coal increased with the increase of temperature,and the initial gas desorption of tectonic coal could be divided into three stages including rapid desorption within 1 minute,slow desorption within 2~30 minutes and stable desorption after 30 minutes,respectively.The relationship between gas desorption amount and time in the initial stage of tectonic coal desorption under variable temperatures conformed to the Logistic model.The higher the temperature,the better the fitting effect.

关 键 词：温度 构造煤 解吸规律 实验研究 LOGISTIC模型 

分 类 号：TD712[矿业工程—矿井通风与安全]