Title: Technology of Comprehensive fire prevention and extinguishment in "two hard" fully mechanized top-coal caving face
Abstract: If fully mechanized top-coal caving is executed in two-hard coal seams,remaining coal is much in goaf,roof is hard,caving size is big,porosity is large,the technology tunnel supplies goaf with wind,and roof caving presents considerable cut-caving character,so air leakage strength in goaf is increased greatly,the zone of oxidation and spontaneous combustion in goaf is widened,and the risk degree of spontaneous combustion rises.Technology of comprehensive fire prevention and extinguishment against two hard character secures the safe production of fully mechanized top-coal caving face.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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