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首页> 外文期刊>International Journal of Oil, Gas and Coal Technology: IJOGCT >Experimental study on the influence of different oxygen concentrations on coal spontaneous combustion characteristic parameters
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Experimental study on the influence of different oxygen concentrations on coal spontaneous combustion characteristic parameters

机译：不同氧浓度对煤自燃特性参数影响的实验研究

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摘要

Oxygen concentration of the oxidation combustion zone in coalfield fire zone and coal spontaneous combustion dangerous area in coal mine such as goaf and sealed fire zone are all lower than that of normal atmospheric. Also, these two areas have the characteristics of high temperature. Therefore, in this paper, XKGW-1 type high temperature coal spontaneous combustion experiment device had been designed and manufactured independently. It was employed to investigate the entire process of coal spontaneous combustion by using the test method of temperature programmed. Five oxygen concentrations, 21, 17, 9, 5, and 3 vol%, were tested, observed, and elucidated. The changing tendency of coal spontaneous combustion index from room temperature to 450.0 degrees C high temperature was explored under those oxygen concentrations. Experimental results showed that the effect of the oxygen concentration on the characteristic index of coal spontaneous combustion was very intricate and complex. The impacting result and degree varied with the range of the temperature. Consequently, during the practical application combined the effecting characteristics of the variable oxygen concentrations on coal spontaneous combustion into the on-site condition will significantly benefit the plan of the fire prevention.
机译：煤田消防区氧化燃烧区的氧气浓度和煤矿煤炭自燃危险区域，如去疫和密封的火区均低于正常大气的燃烧区。而且，这两个区域具有高温的特点。因此，在本文中，XKGW-1型高温煤自动燃烧实验装置独立设计和制造。它采用采用温度试验方法来研究煤自燃的整​​个过程。测试，观察，观察并阐明了五种氧浓度，21,17,9,5和3体积％。在那些氧气浓度下探讨了煤自燃指数从室温到450.0度C高温的变化趋势。实验结果表明，氧气浓度对煤自燃特征指数的影响非常复杂和复杂。影响结果和程度随温度范围而变化。因此，在实际应用过程中，将可变氧气浓度对现场条件的变量氧浓度的影响特性将显着受益于防火计划。

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