摘要
通过采用预测预报、采空区注氮、注浆、加快工作面推进速度、减少采空区丢煤量等技术综合防治特厚厚易燃煤层在回采过程中的自燃发火现象。
By using forecast, goaf nitrogen injection, grouting and accelerate the working face advances speed, reducing coal goaf lost such as the quantity, comprehensive prevention and control technology of coal seam in extraction process thick inflammable the self-ignition phenomenon.
出处
《山东煤炭科技》
2011年第4期238-239,共2页
Shandong Coal Science and Technology
关键词
预测预报
注氮
注浆
综合防治
自然发火
prediction of nitrogen injection grouting comprehensive prevention and spontaneous combustion
