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feng ya diao jie ji shu zai wo kuang de ying yong
Author(s): 
Pages: 55-14
Year: Issue:  4
Journal: Safety in Coal Mines

Keyword:  风压调节技术自然发火采煤工作面回采工作面调压风机采空区有害气体中毒调节风门刮板运输机矿井安全生产;
Abstract: <正> 我矿已开采近二十年,自然发火一直威胁着矿井安全生产,有害气体中毒事故发生过四起,采煤工作面由于自燃而被封闭,有的金属支柱、刮板运输机,来不及撤除,就被封闭在火区里。至今火区下呆滞煤量达98.8万吨。由于自然发火限制了采区走向的合理加长和采区的正常接续,也影响了下部煤层的开采。十几年来对火区
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