| 季节变化对白皎矿煤层自燃影响规律分析 |
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| 引用本文： | 王寿全,伍厚荣,肖蕾,蒋志刚,陈曦.季节变化对白皎矿煤层自燃影响规律分析[J].西安科技大学学报,2011,31(6). |
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| 作者姓名： | 王寿全 伍厚荣 肖蕾 蒋志刚 陈曦 |
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| 作者单位： | 1. 四川煤炭产业集团有限责任公司技术中心,四川成都,610091
2. 宁夏回族自治区煤矿安全监察局,宁夏银川,750001 |
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| 摘 要： | 对煤矿井下煤体和空气的耦合场的能量交换、温度差异、空气介质等要素分析,结合煤自然发火理论的煤氧复合学说,推导煤层自然发火和漏风强度、温度梯度和季节的关系式.该关系式的计算结果表明,矿井深部煤体与风流的温度梯度越大,风压差越大,漏风强度也越大.接着,分析我国气温随地理、时间和季节的分布、变化特点.以宜宾地区各月份平均气温情况为例,分析白皎矿矿井深部煤体与风流的温差特征:按季节划分,春季温度差逐渐变小,夏季达到最小,秋季逐渐变大,冬季达到最大,年复一年.最后,统计白皎104次历史发火记录,得出秋冬2季煤层自燃的几率为59％,春秋2季的几率为41％,即秋冬2季煤层发生自燃火灾的概率比春夏2季大.研究结果为研究煤层自然发火规律及防治技术提供了一定的理论基础,具有现实意义.
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| 关 键 词： | 自燃 漏风强度 温度梯度 季节变化 |
Influence of seasonal variation on coal spontaneous combustion of Baijiao coal mine |
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| WANG Shou-quan,WU Hou-rong,XIAO Lei,JIANG Zhi-gang,CHEN Xi.Influence of seasonal variation on coal spontaneous combustion of Baijiao coal mine[J].JOurnal of XI’an University of Science and Technology,2011,31(6). |
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| Authors: | WANG Shou-quan WU Hou-rong XIAO Lei JIANG Zhi-gang CHEN Xi |
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| Institution: | WANG Shou-quan1,WU Hou-rong1,XIAO Lei2,JIANG Zhi-gang1,CHEN Xi1 (1.Technology Center,Sichuan Coal Industry Group Limited Liability Company,Chengdu 610091,China,2.Ningxia Administration of Coal Mine Safety,Yinchuan 750001,China) |
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| Abstract: | Analyzd correlative factor about energy exchange,tempeature difference and coupled field of coal and air in the underground coal mine,combined theory about coal and oxygen synthesis of coal spontaneous combustion,deduced the relation of coal spontaneous combustion and leak intensity,temperature gradient and season change.It is concluded that the larger the temperature gradient between coal and air current,the more the leeway,and the more the air leak intensity.Then,analyzd the connection of the air temperat... |
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| Keywords: | spontaneous combustion air leak intensity temperature gradient season variation |
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