均压通风技术在易燃厚煤层综放工作面的应用

Application of pressure balancing ventilation technology in fully-mechanized caving face at inflammable thick coal seam

针对易燃厚煤层综放工作面存在的采空区遗煤多、漏风规律复杂、存在大量有害气体等问题,为防止采空区发生自然发火和采空区的有害气体异常涌入工作面,在综放工作面构建了均压通风系统,工作面回采期间均压通风系统运行稳定、可靠,有效减少了工作面与采空区间的漏风量,防止了采空区自然发火和有害气体异常涌入等灾害的发生,保障了工作面的安全生产。

Aiming at problems in fully-mechanized caving face at inflammable thick coal seam,such as residual coal at gob,complicated air leakage law,and large number of harmful gases,pressure balancing ventilation system was established at working face to prevent spontaneous combustion and harmful gases gushing into working face from happening.The system operated steadily and reliably during mining production period,effectively reduced the amount of air leakage between working face and gob,avoided the occurrence of spontaneous combustion at gob and abnormal influx of toxic gases and ensured safety production at working face.