| 基于量热分析煤低温氧化中活化能研究 |
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| 引用本文： | 潘乐书,杨永刚. 基于量热分析煤低温氧化中活化能研究[J]. 煤炭工程, 2013, 45(6): 102-105 |
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| 作者姓名： | 潘乐书 杨永刚 |
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| 作者单位： | 1. 中国民航大学安全科学与工程学院,天津,300300
2. 安徽理工大学,安徽淮南,232001 |
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| 摘 要： | 摘 要：通过量热分析DSC法的手段，研究了煤低温氧化的活化能。通过筛选粒径为32～60目、60～90目、90～200目煤粉进行分析，并在不同升温速率条件下且在氮、氧比例为4:1的环境中进行。试验取得了各自煤样不同条件下的活化能变化趋势，并通过计算得出了各自的活化能值，为划分煤自燃倾向性提供一个科学有效的指标。
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| 关 键 词： | 关键词：煤 量热分析 活化能 自燃倾向性 |
The Research on Activation energy of Coal Oxidation at Low Temperature Based on Calorimetric Analysis |
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| Abstract: | Abstract:By means of differential scanning calorimeter (DSC),the activation energy of coal oxidation at low temperature is learned.The coal samples are sieved into coal powder in particle size of 0.076~0.18mm, 0.18~0.30mm, 0.30~0.56mm.The reactions process at different heating rates and in the circumstance of nitrogen, oxygen concentration of air supply at ratio of 4:1.The trend of different kinds of coal's activation energy is attained from the experiment,and their activation energy values are calculated.A scientific and effective index is provided for dividing the spontaneous combustion tendentiousness of coal. |
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| Keywords: | Key words: spontaneous combustion of coal tendency differential scanning calorimeter activation energy |
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