Gas Control and Fire Prevention Technology of Top Coal Caving Mining in Soft Coal Seam
Top coal caving mining in soft coal seam is faced with technical problems of gas control and fire prevention.Combined with the specific situation of 9-806 working face,the problems of gas control and fire prevention in the mining process were systematically analyzed,and the corresponding prevention and control measures were taken.The results showed that the gas control was affected by the damage of ventilation facilities,large gas content and mining,and the fire prevention was affected by flammable gas,floating coal and fire prevention technology.Therefore,it is necessary to work out reasonable fire prevention measures from the cooperation of industry,university and research,put into use high negative pressure gas pump,reduce air leakage in roadway,and do a good job in monitoring toxic and harmful gases.
coal mine safetysoft coal seamfire preventiongas control
NETL
NSTL
万方数据
