Fire-fighting Technology in Inflammable Coal Seam Fully-mechanized Caving Face Corroded by Small Coal Mine

The paper analyzes the fire prevention problem of inflammable coal seam corroded by small coal mine in 9204 fully mechanized caving face in Dongpang Coal Mine north well. Combined with field observations, the study determines the hazard zone of goaf, and takes comprehensive fire prevention technology project, which effectively prevents spontaneous combustion of coal in goaf and gets very good result.