摘要:
为解决大同矿区典型小窑隐蔽火源治理难题,采用实验分析与红外热成像技术相结合的方法,对隐蔽火源探测与治理技术进行研究,即通过程序升温实验发现大骨料堆积隔离充填材料与传统浆材防灭火材料相比,前者在抑制煤体温度升高以及降低自然发火标志性气体浓度方面效果更显著;利用红外热成像技术以及钻探技术圈定隐蔽火源范围,向疑似火源区域压注大骨料堆积充填材料,凭借材料凝结快、易成型且强度高的特性,迅速构筑起隔离条带,逐步窒息火区。结果表明:红外热成像技术可作为一种有效的隐蔽火源探测圈定方法,同时大骨料堆积隔离充填材料既有效地防止了小窑火入侵主采工作面,又可切断火区供氧,达到窒息火区目的。
Abstract:
To solve the problem of controlling concealed fire source of typical small kilns in Datong Mining Area, the combination method of experimental analysis and infrared thermal imaging technology is adopted to study the detection and control technology of concealed fire source, i.e. through the programmed heating experiment, it is found that compared with the traditional grouting fire-proof material, the large aggregate accumulation isolation materials is more effective in inhibiting the increase of coal temperature and reducing the concentration of spontaneous ignition signature gas, and the infrared thermal imaging and drilling techniques are used to delineate concealed fire sources. The large aggregate accumulation filling materials are injected into the area suspected to be the fire source, and the materials have the characteristics of fast coagulation, easy formation and high strength, so the isolation strip is quickly constructed to gradually suffocate the fire area. The results show that the infrared thermal imaging technology can be used as an effective method for detecting and delineating concealed fire sources. At the same time, large aggregate accumulation and isolation filling materials can not only effectively prevent small kiln fire from invading the main mining face, but also cut off oxygen supply in the fire area to achieve the purpose of asphyxiating the fire area.
百度学术
下载:
