气动风机配合涡流区置换治理上隅角瓦斯技术  

Technology of controlling upper corner gas by pneumatic fan with vortex zone replacement

作　　者：陈学习[1] 金文广[1] 毕瑞卿 徐永[1] 

机构地区：[1]华北科技学院安全学院,北京东燕郊101601

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第12期1590-1593,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：教育部新世纪优秀人才支持计划资助项目(NCET-11-0837);中央高校基本科研业务基金资助项目(3142014012;3142014130;3142013110)

摘　　要：针对戚家坡煤矿S204综放面煤层厚倾角大,采用"U"形通风极易造成上隅角瓦斯超限问题,分析了综放面上隅角瓦斯的主要来源与积聚成因,研究了气动风机配合涡流区置换治理上隅角瓦斯技术.通过数值模拟确定了气动风机最佳安设位置和技术参数,根据气动风机参数确定了上隅角涡流区置换工艺参数和工程实施方法.应用结果表明:技术实施后综放面上隅角瓦斯浓度下降最高可达61.78%,瓦斯超限得到了有效控制.Because of high inclination angle and thick coal seam in fully mechanized coal face S204 in QiJiapo mine, using U-type ventilation can easily result in gas overrun in upper comer. After the analysis of main source and accumulation causes of upper comer gas in fully mechanized coal face, the technology of managing upper corner gas by pneumatic fan with vortex zone replacement is researched. The best installation location and technical parameters of pneumatic fan have been determined through numerical simulation methods, and the process parameters and the engineering implementation method of replacing upper comer are determined according to the pneumatic fan parameters. Application results show that after the technology has been carried out, the gas concentration in upper comer is decreased up to 61.78%.

关 键 词：气动风机 涡流区 置换 上隅角 瓦斯治理 “U”形通风 Fluent软件 瓦斯超限 

分 类 号：TD72[矿业工程—矿井通风与安全]