The technology and practice of eliminating mine fire at veinlet belt orebady of Tongkeng mine

The mine fire at veinlet orebady of Tongkeng Mine mainly caused by the composite role of FeS₂, C and oxygen. The solutions of partial filling, deep-hole caving safety pillar and stopes, large drawing and land covering to eliminate potential causes of accidents in the fire zone are applied. Step-by-step implementation of drawing ore, closing stopes, injecting lime-water and land covering, the fire zone remains controllable. And it effective controls the SO₂ emissions. This program have eliminated the significant potential accidents to mining.