论文部分内容阅读
本文以运河煤矿5305综采放顶煤工作面为例,针对俯采下行通风综放工作面采空区自然发火防治的难点和关键环节,分析了影响下行通风综放工作面采空区自然发火因素,并重点介绍了工作面回撤期间采取的各种防火措施,加强风流的控制和采空区的封堵,经多种防火措施的综合运用和现场实践,取得了较好的效果,保障了5305综放工作面生产回撤的安全。
Taking the 5305 fully mechanized top coal caving face in Yunhe Coal Mine as an example, aiming at the difficulties and key points of spontaneous combustion prevention and control of goaf in fully mechanized top coal caving mining face with sub-level ventilation, the paper analyzes the influence of spontaneous combustion Factors and focused on various fire prevention measures adopted during the work face retracement to enhance the control of wind flow and the blockage of the goaf. With various fire prevention measures and field practices, good results and safeguards have been achieved The safety of 5305 fully mechanized top coal caving face production withdrawal.