| 褐煤阴燃转化为焰火燃烧的试验研究 |
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| 引用本文： | 王文才,王瑞智,贺媛,张朋. 褐煤阴燃转化为焰火燃烧的试验研究[J]. 煤炭科学技术, 2010, 38(4) |
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| 作者姓名： | 王文才 王瑞智 贺媛 张朋 |
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| 作者单位： | 内蒙古科技大学,矿业工程学院,内蒙古,包头,014010 |
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| 基金项目： | 国家自然科学基金资助项目(50844035);;内蒙古自然科学基金资助项目(2009MS0709) |
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| 摘 要： | 为了考察褐煤阴燃转化为焰火燃烧的机理和临界条件,从而为煤层阴燃火灾的预防提供理论依据,设计和制作了巷道中煤层阴燃转化为焰火燃烧的试验装置,采用该试验装置,研究了巷道中煤层阴燃转化为焰火燃烧时的温度、CO浓度和氧气浓度。试验结果表明:当阴燃面温度呈上升趋势且达到煤的着火点、阴燃面的O2浓度达到或超过煤焰火燃烧的最低值时,阴燃就转化为焰火燃烧;试验测定出褐煤阴燃转化为焰火燃烧时的临界温度为284.6~357.9℃,CO的临界体积分数为0.018 754~0.032 058,O2的临界体积分数为3.3%~8.7%。
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| 关 键 词： | 褐煤 阴燃 焰火燃烧 临界条件 |
Experiment Research on Hidden Combustion Turned to Flame Combustion of Lignite |
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| WANG Wen-cai,WANG Rui-zhi,HE Yuan,ZHANG Peng. Experiment Research on Hidden Combustion Turned to Flame Combustion of Lignite[J]. Coal Science and Technology, 2010, 38(4) |
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| Authors: | WANG Wen-cai WANG Rui-zhi HE Yuan ZHANG Peng |
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| Affiliation: | School of Mining Engineering/a>;Inner Mongolia University of Science and Technology/a>;Baotou 014010/a>;China |
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| Abstract: | In order to investigate the mechanism and critical conditions of the lignite hidden combustion turned to the flame combustion and to provide the theoretical basis to prevent and control the seam hidden combustion disaster,an experiment device of the seam hidden combustion turned to flame combustion in the mine gateway was designed and manufactured.The experiment device was applied to study the temperature,CO content and O2 content when the seam hidden combustion turned to the flame combustion in the mine ga... |
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| Keywords: | lignite hidden combustion flame combustion critical condition |
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