Treatment technology of oxidation self heating hidden danger of residual coal in goaf of high outburst mine
There is a large amount of coal left near the goaf fault during the final mining of working face in a coal mine,and affected by other coal mine accidents,the stoping time of the working face is long and the pushing mining speed is slow,it leads to oxidation and self heating of residual coal in goaf and rapid increase of CO.By establishing the guiding ideology of"safety first,speed and efficiency",determine the overall technical idea of"blocking air leakage,reducing oxygen,eliminating high temperature and preventing repetition",the technical measures of"inert gas injection explosion-proof,zoning prevention,glue injection cooling,oxygen control and temperature suppression"are adopted,so as to effectively eliminate the hidden danger of oxidation autothermal high temperature of residual coal in goaf,so that the working face of a coal mine can be opened safely,provide safety guarantee for the withdrawal of working face.
residual coaloxidation self heatinghigh temperature hidden danger treatmentoxidation
万方数据
维普
