| 煤自燃影响因素权重的灰色关联度分析 |
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| 引用本文： | 晋明月,董超,孙浩博. 煤自燃影响因素权重的灰色关联度分析[J]. 煤矿安全, 2012, 43(12): 173-176 |
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| 作者姓名： | 晋明月 董超 孙浩博 |
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| 作者单位： | 中国矿业大学安全工程学院,江苏徐州221116／煤炭资源与安全开采国家重点实验室,江苏徐州221116 |
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| 基金项目： | 国际科技合作资助项目，国家自然科学基金青年基金资助项目 |
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| 摘 要： | 基于灰色关联理论,建立了斜率关联度改进模型,以70℃作为煤自燃实验过程高低温段的分界点,定量研究了不同煤种自燃实验高温段和低温段各影响因素与煤耗氧速率之间的关联度,并以此作为衡量各因素对煤自燃影响的指标。结果表明:在高温段,挥发分和孔隙率是煤自燃最主要的影响因素;在低温段,氧浓度的影响最大,水分和灰分的影响最小。
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| 关 键 词： | 煤自燃 影响因素 耗氧速率 灰色关联度 |
Grey Correlation Degree Analysis for the Weight of Coal Spontaneous Combustion Influencing Factors |
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| JIN Ming-yue,DONG Chao,SUN Hao-bo. Grey Correlation Degree Analysis for the Weight of Coal Spontaneous Combustion Influencing Factors[J]. Safety in Coal Mines, 2012, 43(12): 173-176 |
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| Authors: | JIN Ming-yue DONG Chao SUN Hao-bo |
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| Affiliation: | 1,2(1.School of Safety Engineering,China University of Mining and Technology,Xuzhou 221116,China; 2.Sate Key Laboratory of Coal Resources and Safety Mining,Xuzhou 221116,China) |
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| Abstract: | Based on grey correlation theory,an improved model of slope-correlation was established.Taking 70℃ as the boundary of high and low temperature in the process of coal spontaneous combustion experiment,the correlation degree between the influencing factors and the rate of oxygen consumption in various coal spontaneous combustion experiments with high temperature and low temperature was quantitatively studied,which was adopted as the index of measuring the impact of various factors on the coal spontaneous combustion.The results showed that volatile and porosity were the most important influencing factors of coal spontaneous combustion in high temperature period,whereas oxygen concentration had the greatest effect,moisture and ash had minimal effect on coal spontaneous combustion in low temperature period. |
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| Keywords: | coal spontaneous combustion influencing factors oxygen consumption rate grey correlation degree |
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