| 煤低温自燃发火的热效应及热平衡测算法 |
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| 引用本文： | 文虎,徐精彩,葛岭梅,邓军,张辛亥,李莉.煤低温自燃发火的热效应及热平衡测算法[J].湖南科技大学学报(自然科学版),2001,16(4):1-4. |
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| 作者姓名： | 文虎 徐精彩 葛岭梅 邓军 张辛亥 李莉 |
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| 作者单位： | 1. 西安科技学院采矿工程系,
2. 西安交通大学, |
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| 基金项目： | 国家自然科学基金资助项目(59974020) |
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| 摘 要： | 煤在低温自燃发火过程中的热效应是多种多样的,但主要是煤与氧的化学反应热.通过装煤850kg的大型煤低温自燃发火实验台模拟煤自燃过程,根据实验台测定的温度场变化和传热学理论,推导出计算不同温度时松散煤体低温氧化放热强度的热平衡测算法.通过对不同煤样的自燃发火测试,利用该方法推算出不同的煤在相同温度下的放热强度,为煤自燃特性的定量分析及自燃发火预测提供了理论依据.图1,表1,参8.
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| 关 键 词： | 煤自燃发火 热效应 热平衡法 放热强度 |
| 文章编号： | 1000-9930(2001)04-0001-04 |
| 修稿时间： | 2001年3月9日 |
Heat effect and its thermal equilibrium calculating method during coal spontaneous combustion at low temperature |
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| WEN Hu ,XU Jing-cai ,GE Lin-gmei ,DENG Jun ,ZHANG Xin-hai ,LI li.Heat effect and its thermal equilibrium calculating method during coal spontaneous combustion at low temperature[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2001,16(4):1-4. |
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| Authors: | WEN Hu XU Jing-cai GE Lin-gmei DENG Jun ZHANG Xin-hai LI li |
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| Institution: | WEN Hu 1,XU Jing-cai 1,GE Lin-gmei 1,DENG Jun 2,ZHANG Xin-hai 2,LI li 1 |
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| Abstract: | The heat effect is multifarious during coal spontaneous combustion at low temperature, but the main is chemical reaction heat of coal and oxygen. Through simulating the process of coal self-ignite by the experimental unit loading coal 850kg, and according to heat-transfer theory and the change of temperature field determined through experiment of coal self-ignite at low temperature stage, thermal equilibrium method is developed to calculate heat liberation intensity of loose coal oxidation at different low temperature stage. By test of spontaneous combustion to different coal sample, their heat liberation intensity is calculated by the method at the same temperature. It offers a theoretic criterion for quantitatively analyzing characteristic of coal self-ignite and forecasting coal spontaneous combustion.1fig.,1tab.,8refs. |
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| Keywords: | coal spontaneous combustion heat effect thermal equilibrium method heat liberation intensity |
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