It is now the late autumn season, which is the fire prone season of the year. On October 26th, the workers of the coal transportation operation team of the WOM Pingshan Project Department found signs of heat and smoke in the coal bunker of # 4 coal yard during the inspection of the coal yard. It is judged by experience that spontaneous combustion occurs in the coal dump of the coal yard, immediately report to the monitor, contact the firefighting personnel in the plant to handle it, and use the loader to cooperate with the firefighters to isolate the spontaneous combustion coal from the coal pile in the coal yard. It avoids the further expansion of spontaneous combustion of coal pile and reduces the economic loss to the lowest value, which is well received by the owner.