根据综放面煤层自然发火的特点,分析了煤层自然发火的原因,提出综放面的管理技术措施和不同回采时期的自燃火灾综合防治措施,对我国综放面煤层自燃火灾防治具有一定的参考意义。

对国内矸石山自燃区域探测技术及灭火方法进行了分析,重点介绍了采用注浆法时注浆材料、钻孔工艺及装备、注浆工艺参数的选择方法,指出应加强矸石山自燃机理、爆炸机理以及矸石综合利用技术的研究。

论述了突出预测敏感指标及其临界值的概念、判断原则和确定方法,结合大湾矿的实践,介绍了一种集历史资料统计、实验室和现场试验相结合的突出预测敏感指标及其临界值的确定过程、步骤和方法,对钻屑瓦斯解吸指标K1、钻孔瓦斯涌出初速度及其衰减指标、钻粉量、炮后30min吨煤瓦斯涌出量指标V30和综合指标R的敏感性进行了考察,并在此基础上研究和确定了K1指标和V30指标的临界值.

The experimental method and mathematical model for calculating the incubation period of coal seam spontaneous combustion were established by taking the chemical absorption heat and chemically reaction heat during coal oxidation as the main heat source of temperature rise during coal combustion, and actual computation was made. The computed results can be used to better explain some phenomenon in the spontaneous combustion process of coal and have higher reliability.

针对综采工作面自然发火的特点,探讨了利用顶板钻孔灌注黄泥浆的新工艺及其防灭火效果.

为了更准确地预报煤层自然发火期,在总结前人对煤层最短自然发火期解算模型研究的基础上,分析了仍存在的一些问题.根据煤与氧反应的热平衡方程导出了煤最短自然发火期解算模型及实验方法,提出了更符合实际情况的煤层最短自然发火期解算模型.经两个试验工作面观测验证,预测准确率达到74%～90%,说明所建立的预测模型是正确的,预测方法对现场安全生产具有一定的指导作用.

This paper discussed the mechanism of spontaneous combustion in No.15 coal seam of No.5 Yangquan Mine, reached the conclusion that the coexistence of subsided column oxidized zone and melanterite and pyrite and the interaction of activated oxidizing activity of coal are the main cause of serious spontaneous combustion, and supplemented and perfected the mechanism that pyrite may promote spontaneous combustion of coal.

介绍了PHY一1型带式输送机巷火灾有害气体自动引流系统的主要构成、工作原理、系统设计及井下工业性试验情况.该系统集火灾自动监测、自动灭火、灾变风流自动控制等功能于一体,对防止灾害的进一步蔓延有重要作用.

介绍了一种以单片机为核心的灾变风流自动控制系统,并对其性能进行了考察,结果表明其电路设计简单合理,运行稳定可靠.