| 粒度对煤的自燃倾向性表征影响 |
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| 引用本文： | 刘剑,赵凤杰.粒度对煤的自燃倾向性表征影响[J].辽宁工程技术大学学报(自然科学版),2006,25(1):1-3. |
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| 作者姓名： | 刘剑 赵凤杰 |
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| 作者单位： | 辽宁工程技术大学,资源与环境工程学院,辽宁,阜新,123000 |
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| 基金项目： | 辽宁省自然科学基金资助项目(2001101064)，基于活化能指标的煤的自燃倾向性及自然发火期理论研究基金资助项目 |
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| 摘 要： | 为了使活化能这一指标科学有效的应用于煤的自燃倾向性的鉴定，利用热重分析仪器，对两种煤的不同粒度的煤样进行了自燃的实验研究，试验曲线结果表明，煤样粒度越细，TG曲线和DSC曲线向低温方向移动，煤样的着火提前，运用热重动力学方法计算得到煤的活化能，发现粒度越小，活化能值也越小，越容易着火，即其白燃倾向性增大。粒度是一个重要的影响因素。
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| 关 键 词： | 粒度 活化能 TG曲线 自燃倾向性 |
| 文章编号： | 1008-0562(2006)01-0001-03 |
| 修稿时间： | 2004年11月8日 |
Effect of particle size on spontaneous combustion tendency characterization of coal |
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| LIU Jian,ZHAO Feng-jie.Effect of particle size on spontaneous combustion tendency characterization of coal[J].Journal of Liaoning Technical University (Natural Science Edition),2006,25(1):1-3. |
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| Authors: | LIU Jian ZHAO Feng-jie |
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| Abstract: | To make the index of activation energy applied to appraising spontaneous combustion tendency of coal,using thermogravimetric analysis instrument,experiments of different coal samples were carried out on different particle size.The studies show that TG and DSC curves move to low temperature zone with the increasing of particle size.Activation energy has been computed using the method of thermoanalysis kinetics.The results suggest that activation energy of coal gradually have decreased with the increasing of particle size.Particle size is an important influential factor for spontaneous combustion tendency characterization of the coal. |
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| Keywords: | particle size activation energy TG curve spontaneous combustion tendency |
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