加压速率对不同变质程度煤吸附性能的影响研究  

Influence of Pressurization Rate on Absorption Property of Coal with Different Metamorphic Degrees

作　　者：姜黎明[1,2] 张浪[1,2] 汪东[1,2] 季文博[1,2] 

机构地区：[1]煤炭科学技术研究院有限公司安全分院,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013

出　　处：《煤矿开采》2015年第1期17-19,29,共4页Coal Mining Technology

基　　金：国家科技重大专项资助项目(2011ZX05040-001-1);国家重点基础研究发展计划(973计划)资助项目(2012CB201206)

摘　　要：为研究不同加压速率对吸附性能的影响,采用美国康塔仪器公司研制的i Sorb HP2高压气体吸附分析仪对门克庆矿、沙曲二矿、阳泉五矿3种不同煤阶煤样,进行了不同加压速率下的瓦斯吸附常数对比测试。结果表明,加压速率对瓦斯吸附常数影响非常明显;对特定煤阶煤样,随着加压速率增大,吸附常数a有减小趋势,吸附常数b有增大趋势,煤阶越高,瓦斯吸附常数受加压速率的影响程度越大。因此,对于不同煤阶煤样,加压速率应适当调整,以提高其指导现场应用的作用。In order to research the influence of different pressurization rates on absorption property,i Sorb HP2 high-pressure gas absorption analyzer developed by U. S. Kangta Corporation was applied to testing methane absorption constant of 3 coal-ranks specimen from Menkeqing,Shaqu and Yangquan under different pressurization rates. Results showed that the influence of pressurization rate on methane absorption constant was obvious. For special coal-rank specimen,with rate increasing,absorption constant a decreased and b increased. The larger the coal-rank was,influence degree was larger. Therefore,for different coal-rank specimen,pressurization rate should be changed suitably to preferably guide practice.

关 键 词：加压速率 变质程度 吸附性能 吸附常数 

分 类 号：TD712[矿业工程—矿井通风与安全]