含瓦斯型煤吸附/解吸特性研究  

Study on Adsorption and Desorption Characteristics of Briquette Coal Containing Gas

作　　者：岳基伟 王兆丰[1,2] 谢策[1] 岳高伟[1,3] 祁晨君 YUE Jiwei;WANG Zhaofeng;XIE Ce;YUE Gaowei;QI Chenjun(School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China;Engineering Research Center of Mine Disaster Prevention and Rescue of the Ministry of Education,Jiaozuo 454000,China;School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

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]煤矿灾害预防与抢险救灾教育部工程研究中心,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》2018年第9期31-34,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51274090);河南省高校科技创新团队支持计划资助项目(17IR TSTH N 030)

摘　　要：为解决煤层瓦斯含量测定不准的问题,采用型煤对其不同温度下的吸附/解吸特性进行测试研究。研究结果表明:随着温度的降低,型煤的吸附常数a、b值迅速增大;同一温度下,型煤的解吸量随着时间的增大而逐渐增加,吸附平衡压力越大,其解吸量越大;型煤的解吸量Q与时间t、温度T及压力p满足Q=((Cp+D)T+ep+f)t^((hp+g)T+mp+n)的关系,式中:C、D、e、f、h、g、m均为拟合参数。In order to solve the problem of inaccurate determination of coal seam gas content, the adsorption and desorption characteristics of briquette coal at different temperature were studied. The results showed that the adsorption constants which are a and b increase rapidly with the decrease of temperature. Under the same temperature, the desorption amount of briquette coal increases with the increasing of time. The high of the adsorption equilibrium pressure is, the greater the desorption amount of briquette coal is. The relationship among desorption amount Q of briquette coal and time t, temperature T and pressure p meets the function of Q=（（Cp＋D）T＋ep＋f）t-（（hp＋g）T＋mp＋n）, and C, D, e, f, h, g, m are fitting constants.

关 键 词：煤层瓦斯含量 型煤 瓦斯解吸量 低温 瓦斯防治 

分 类 号：TD712[矿业工程—矿井通风与安全]