Emerging risk of autoignition and fire in underground coal storage
Emerging risk of autoignition and fire in underground coal storage
复制标题
地下煤炭储存库中新出现的自燃和火灾风险
DOI：
10.1080/13669877.2012.729525
复制
发表时间：
2012
影响因子：
5.1
通讯作者：
Ulrich
中科院分区：
文献类型：
--
作者：
Sipilä;Auerkari;Pertti;Heikkilä;Anna- Maria;Krause;Ulrich
结合近年来发生的多起阴燃火灾，对地下储煤设施自燃风险及预防措施进行了综述。此外，还考虑了预防和扑灭封闭空间火灾的替代方案的效率。避免和扑灭地下火灾的复杂性在案例示例中得到强调，描述了在仓库中闷烧煤火的观察和结果。自热原理和自燃的最关键因素，如煤的条件和质量，都是众所周知的，但通常只提供部分的帮助，以防止火灾。文献记载的案例和实例表明，氮气注入可以用于扑灭可控火灾。三相泡沫和排氧废气似乎更适合于不受控制的火灾，特别是在进入火灾区域有限或不可能的情况下。否则，电厂运行期间的有效灭火可能是具有挑战性的，因为任何空气的进入往往会助长火灾，并导致灭火剂和煤的热值的损失。讨论了检测和预测着火的方法和指标，并提出了改进建议，以提高储存量和设备利用率。
The risk and prevention of autoignition in underground coal storage facilities are reviewed in the light of the recent incidents of smouldering fires. Also, the opportunities are considered on the efficiency of the alternatives to prevent and extinguish closed-space fires. The complexities in avoiding and extinguishing underground fires are highlighted in the case example, describing the observations and outcome of a smouldering coal fire in the storage. The principles of self-heating and most critical factors in spontaneous combustion such as the condition and quality of coal are fairly well known, but usually only provide partial help in fire prevention. The documented cases and the case example suggest that nitrogen injection can be useful for extinguishing controllable fires. Three-phase foams and oxygen-displacing exhaust gases appear preferable against uncontrolled fires, particularly if access to the fire area is limited or impossible. Otherwise, efficient fire extinction during power plant operation can be challenging, as any air ingress tends to feed the fire and results in losses of the extinguishing agent and the heating value of coal. Methods and indicators for detecting and predicting the ignition are discussed, and improvements are suggested to enhance the storage and plant availability.
使用气体（特别是氮气）扑灭矿井火灾
DOI：
--
发表时间：
2000
期刊：
影响因子：
--
作者：
R. P. Ray;Zutshi;Bhowmick;Sahay;N. Singh
通讯作者：
N. Singh