为了有效地防止瓦斯混合气体或煤尘爆炸传播到生产巷道中,通常需封闭火区或沼气采区中的废弃巷道.如果在沼气采区或采空区打的密闭漏风那么回采结束后的残煤自燃将成为内因火灾的原因,使采空区或沼气采区的封闭区内出现爆炸危险.为防止爆炸摧毁或损坏保护系统,防止爆炸传播到生产巷道,各煤矿的技术部门不仅应注意消除爆炸危险,而且还应研制出隔绝爆炸、保证井巷安全的设施. In order to effectively prevent gas mixture or coal dust explosion spread to the production of roadway, usually closed fire area or abandoned roadway in the biogas mining area.If the air leakage in the biogas mining area or goaf, then after the end of the recovery Spontaneous combustion of coal will be the cause of internal fire, so that there is danger of explosion in the closed area of ​​the mined-out area or biogas mining area.In order to prevent the explosion from destroying or damaging the protection system and preventing the explosion from spreading to the production laneways, the technical departments of each mine should not only pay attention to elimination Explosion hazard, but also should be developed to isolate the explosion, to ensure the safety of roadway facilities.