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首页> 外文期刊>Environmental earth sciences >The inducement of coal spontaneous combustion disaster and control technology in a wide range of coal mine closed area
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The inducement of coal spontaneous combustion disaster and control technology in a wide range of coal mine closed area

机译：大范围煤矿禁区煤自燃灾害的诱因及防治技术

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摘要

Based on the theory of coal and oxygen interaction mechanism and combined with the actual situation of a coal spontaneous combustion incident at Wangtaipu coal mine, the occurrence conditions, process, and the degree of risk of spontaneous combustion in the closed area are analyzed in detail. The main reasons for the coal spontaneous combustion in the closed area were obtained by the extraction and analysis of the multiinformation. The fractures on the seal walls were analyzed. Their distribution characteristics and air leakage were investigated. According to the distribution concentration of CO and O-2 and their variety law in the entire closed area, the range of the fire zone was delineated. After that, multiple technical measures were implemented, such as fracture plugging, even pressure for air control, and absorbing and cooling temperature by injecting nitrogen. The concentration changes of CO, O-2, and CO2 in the closed area are controlled, and the temperature and pressure difference are obviously reduced. The use of multiple information to analysis the degree of spontaneous combustion in the closed area and the multiple fire extinguishing technology has been demonstrated successful in the practical application. The proposed techniques can be applied to other similar conditions for prevention and control of hazards imitated from coal spontaneous combustion.
机译：基于煤与氧相互作用机理的理论，结合王台铺煤矿煤自燃事件的实际情况，对封闭区自燃的发生条件，过程和自燃风险程度进行了详细分析。通过对多种信息的提取和分析，得出了煤在封闭区域自燃的主要原因。分析了密封壁上的裂缝。研究了它们的分布特性和空气泄漏。根据CO和O-2在整个封闭区域内的分布浓度及其变化规律，确定了火区范围。此后，实施了多项技术措施，例如裂缝堵塞，均匀的空气控制压力以及注入氮气的吸收和冷却温度。控制了封闭区域内CO，O-2和CO2的浓度变化，明显降低了温度和压力差。在实际应用中，已经证明了利用多种信息来分析封闭区域的自燃程度和多种灭火技术。所提出的技术可以应用于其他类似条件，以预防和控制煤自燃产生的危害。

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