露天矿大面积小煤窑自燃火灾探测及综合治理技术研究

 本文阐述了同位素测氡法和红外探测法探测火源的原理、步骤和结果，在确定火区范围的基础上通过综合分析火区特征，比较常用的煤田灭火方法工艺、优缺点和适用条件，结合地理环境、煤层特点及生产规划，兼顾经济、环境和社会效益的原则，提出“火区（塌陷区）剥离平整－火区（塌陷区）内灌黄泥浆、黄土分层覆盖碾压－火区边界打钻注浆隔离、局部煤层露头火剥挖－回填绿化”的综合灭火技术方案,并在准格尔煤田焦稍流域露天矿小煤窑进行了应用。该探测和灭火方法适合治理大面积露天矿小煤窑自燃火区，探测精度高，灭火成本低、效果好、安全性高，打破了露天矿长期以来单一的剥离灭火方法，最大限度地减小了对生态环境的负面影响。

Detection on Spontaneous Combustion Area in Surface Mine and Study on Comprehensive Control Technology of Spontaneous Combustion Area

The paper introduced the principle,procedure and results of the fire sources detection with the isotope radon measuring method and the infrared detection method.Base on the determination on the scope of the fire zone,with the comprehensive analysis on the fire zone features,in comparison with the techniques,advantages and disadvantages as well as the suitable conditions of the conventional coalfield fire extinguishing method,a comprehensive fire extinguishing technical plan was provided with "a stripping and ground grading of the fire zone(subsidence zone)-a yellow mud grouting,slicing covered and compaction with loess within the fire zone(subsidence zone)-a borehole drilling,grouting for isolation along the boundary of the fire zone,stripping and excavation for the fire at the outcrop of local seam-backfill and vegetation".The fire extinguishing plan was applied in the small mine of Heidaigou Surface Mine.The results showed that the detection accuracy of the detection and technology was high,the fire extinguishing cost was low with good effect and high safety and could be suitable to control the spontaneous combustion in the small mine of the large surface mine.