低温环境下经验公式对颗粒煤瓦斯解吸描述的研究  

Study on Description of Empirical Formula on Gas Desorption of Coal Particles in Low Temperature Environment

作　　者：祁晨君 王兆丰[1,2] 谢策[1] 岳高伟[3] 李小军[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]河南省瓦斯地质与瓦斯防治重点实验室-省部共建国家重点实验室培育基地,河南焦作454000 [3]河南理工大学土木工程学院,河南焦作454000

出　　处：《煤矿安全》2016年第10期29-32,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51274090);河南理工大学博士基金资助项目(B2014-004)

摘　　要：国内外描述颗粒煤瓦斯解吸的经验公式众多,但都是常温和高温下的描述。低温能够抑制瓦斯解吸,提高瓦斯含量测定的准确性。为了描述低温下经验公式的适用性,运用高低温吸附解吸装置,设计低温解吸试验。研究表明:煤样环境温度越低,试验解吸时间越短,经验公式描述低温下颗粒煤瓦斯解吸越准确,其中以文特式和王佑安式最为准确。There are many studies on empirical formula for gas desorption of coal particles in domestic and international,but they are the descriptions under the room temperature and high temperature. Low temperature can inhibit gas desorption,improve the accuracy of gas content. Based on this,a high-low temperature adsorption-desorption experiment system is used to test gas desorption in low temperature. The results showed that the lower of the temperature is,the shorter of the desorption time is,and the significant effect of the empirical formula on gas desorption of coal particles is. The descriptions of gas desorption from Winter and WANG You＇an are accurate in low temperature environment.

关 键 词：低温环境 瓦斯解吸 煤层瓦斯含量 经验公式 瓦斯漏失量 

分 类 号：TD712[矿业工程—矿井通风与安全]