Fire prevention of final mining and withdrawal in old goaf old roadway's island working face
Coal mine CO gas control regulation of the current stage of the State Mine Safety Supervision Bureau is more strict.The removal of natural fire mine working face is easy to cause fire and difficult to fire prevention.In order to ensure that the mechanized working face in the final mining and removal period has no natural fire hazards,and overcome the previ-ous passive situation of"demolish results in fire",through the summary of fire prevention work of Changcun coal mine's eight removal working face since 2012,and considering local conditions,the fire prevention measures are improved,fire pre-vention equipment is upgraded,personnel organization is strengthened,and control measures and other means are implemen-ted.The feasibility is verified by the test application on the 21002 removed face,and the safe and smooth withdrawal of the face is ensured,realizing the zero control of the CO between the supports and the return airflow,and reducing the investment in fire prevention.
final miningremoval of fully mechanized caving facefire prevention technologyzero control of CO
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