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边界煤柱回采工作面采空区内有害气体具有来源难以确定和不断随生产活动涌出的特点,通过对有害气体参数及时进行安全监测,并结合矿井通风系统、工作面回采速度、采空区遗煤自燃等情况进行有害气体来源综合分析,并引入通风网路增压调节技术理论,选择通风增压、增阻堵漏和灌浆隔离等有害气体综合防治技术方案,有效地控制了采空区有害气体的大量涌出,确保回采工作面安全生产。
The harmful gases in the gob of the coal pillar face in the border pillar have the characteristics that the sources are difficult to determine and keep pouring out along with the production activities. Through the timely monitoring of the harmful gas parameters, and combined with the mine ventilation system, the mining face recovery rate, Coal spontaneous combustion and other conditions of a comprehensive analysis of the source of harmful gases, and the introduction of ventilation network pressure regulation technology theory, selection of ventilation and pressurization, resistance plugging and grouting isolation and other harmful gas comprehensive prevention and control programs to effectively control the goaf A large number of harmful gas emissions, to ensure safe production of mining face.