• 中文核心期刊
  • 中国科技核心期刊
  • RCCSE中国核心学术期刊

荆各庄矿复采与原生煤层自燃特性分析

王福生, 孙超, 杨志, 董宪伟, 艾晴雪

王福生, 孙超, 杨志, 董宪伟, 艾晴雪. 荆各庄矿复采与原生煤层自燃特性分析[J]. 煤矿安全, 2017, 48(10): 156-159.
引用本文: 王福生, 孙超, 杨志, 董宪伟, 艾晴雪. 荆各庄矿复采与原生煤层自燃特性分析[J]. 煤矿安全, 2017, 48(10): 156-159.
WANG Fusheng, SUN Chao, YANG Zhi, DONG Xianwei, AI Qingxue. Characteristics Analysis of Spontaneous Combustion for Repeated and Original Coal Seams in Jingezhuang Mine[J]. Safety in Coal Mines, 2017, 48(10): 156-159.
Citation: WANG Fusheng, SUN Chao, YANG Zhi, DONG Xianwei, AI Qingxue. Characteristics Analysis of Spontaneous Combustion for Repeated and Original Coal Seams in Jingezhuang Mine[J]. Safety in Coal Mines, 2017, 48(10): 156-159.

荆各庄矿复采与原生煤层自燃特性分析

Characteristics Analysis of Spontaneous Combustion for Repeated and Original Coal Seams in Jingezhuang Mine

  • 摘要: 为了研究荆各庄矿复采与原生煤层工作面的自然发火规律,采用元素分析、红外光谱分析和程序升温实验,对荆各庄矿的1090与3320工作面的复采区域与原生煤样进行自燃特性实验研究。研究表明:由于早期开采机器的切割或者外力作用,导致煤分子链断裂,产生大量甲基、亚甲基,同时煤样提前与氧有了接触,形成了很多羟基以及新的含氧官能团,导致复采煤样羟基和含氧官能团增多,自燃倾向性变强,宏观表现为复采煤样CO释放量以及O2消耗量均要高于原生煤样,并且复采特征温度也要早于原生煤样。说明复采煤样氧化性变强,更易自燃。
    Abstract: In order to study the spontaneous combustion laws of repeated mining and original coal seams in Jingezhuang Mine, using element analysis, infrared spectrum experiment and temperature-programmed experiment, the spontaneous combustion characteristic experiments on the repeated mining and the original coal samples of 1090 and 3320 working faces of Jingezhuang Mine are carried out. The research show that: coal molecular chain is broken up and produces a lot of methyl, methylene because of the cutting or external force of the early mining machine, meanwhile, coal samples are in contact with oxygen in advance and create a lot of hydroxyl groups and new oxygen containing functional groups, leading to the increase of the oxygen-containing functional groups and hydroxyl of repeated coal samples, and the coal spontaneous combustion tendentiousness is strengthened. The macro performance of CO release quantity and O2 consumption of repeated coal samples is more than that of the original coal samples, and characteristic temperature of repeated mining is also earlier than that of the original coal samples. It is indicated that the oxidation of the repeated coal is stronger and more flammable.
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  • 发布日期:  2017-10-19

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