Adopting Pressure-equalizing Technology to Prevent Spontaneous Combustion in Fully-mechanized Sublevel Mining Face Goaf

摘要

According to the concrete circumstances that there are many small coal mines up the 1301 fully-mechanized sublevel mining face in spontaneous combustion 2-3 coal seam of Gengcun Coal Mine of Yima mining area , by measuring ventilating pressure energy of the mine and building opening pressure-equalizing system in it, solved an important technique problem of preventing spontaneous combustion of coal of goaf in mining process, guaranteed to mine safely, and the result is good.