[1]魏引尚,郑活勃,王 宁.采空区自燃“三带”特征的最小二乘法分析[J].西安科技大学学报,2015,(02):159-164.[doi:10.13800/j.cnki.xakjdxxb.2015.0204]
 WEI Yin-shang,ZHENG Huo-bo,WANG Ning.Characteristic analysis of spontaneous combustion “three-zone” in goaf by least square method[J].Journal of Xi'an University of Science and Technology,2015,(02):159-164.[doi:10.13800/j.cnki.xakjdxxb.2015.0204]
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采空区自燃“三带”特征的最小二乘法分析(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年02期
页码:
159-164
栏目:
出版日期:
2015-03-10

文章信息/Info

Title:
Characteristic analysis of spontaneous combustion “three-zone” in goaf by least square method
文章编号:
1672-9315(2015)02-0159-06
作者:
魏引尚1郑活勃1王 宁2
1.西安科技大学 能源学院,陕西 西安 710054;
2.靖远煤业集团公司 大水头煤矿,甘肃 白银 730913
Author(s):
WEI Yin-shang1ZHENG Huo-bo1WANG Ning2
1.College of Energy Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;
2.Dashuitou Coal Mine,Jingyuan Coal Industry Group,Baiyin 730913,China
关键词:
采空区 自燃“三带” 临界点 最小二乘法拟合
Keywords:
goaf spontaneous combustion “three-zone” critical point least square fitting
分类号:
TD 75
DOI:
10.13800/j.cnki.xakjdxxb.2015.0204
文献标志码:
A
摘要:
为研究采空区煤自燃对工作面及整个矿井安全生产的危害及影响,减小矿井发生自燃火灾的可能性,提高安全生产效率,采用沿综放工作面两端头向采空区布置测点的方法,进行采空区温度以及气体组分浓度变化分析,得到了大水头煤矿东108综放工作面采空区遗煤温度和特征气体参数的变化曲线; 利用Matlab软件的最小二乘法拟合方法,对所观测到的数据进行曲线拟合,通过高阶函数驻点特性分析、以及实际参数曲线所反映的采空区煤炭自燃“三带”规律,分析得出了采空区自燃的散热带和氧化带的临界点在采空区深度大约55 m处,氧化带和窒息带临界点在大约92 m处,采空区氧化带内最剧烈氧化点出现在深度约为68 m处,这些研究成果为指导大水头煤矿防灭火工作提供了一定的科学依据。
Abstract:
For the study of spontaneous combustion of coal in goaf and the impact and hazards on the working surface and the entire mine production safety,reducing the possibility of mine spontaneous combustion fire and improving the efficiency of production safety,by embedding groups of temperature probes and bundle tube system at both ends of east 108 fully mechanized mining faces in Dashuitou coal mine,measuring the temperature and gas composition generated by the oxidization of residual coal in gob and analyzing the change law,the authors get the variation curve of temperature and characteristic gas.Then fit the data measured in site by least square method of Matlab,and analyze the critical point by higher-order functions.Combining the rule of parameter curve reflecting spontaneous combustion “three-zone” in goaf,the paper gets the critical point between heat-loss zone and oxidation zone is located in goaf at a depth of about 55 m,and the critical point between oxidation zone and suffocative zone is located in goaf at a depth of about 92 m,besides,the most dramatic point of oxidation is located in goaf at a depth of about 68 m.Those researches provide a scientific basis for guiding the work of Dashuitou coal mine.

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备注/Memo

备注/Memo:
通讯作者:魏引尚(1966-),男,陕西富平人,教授,E-mail:weiys@xust.edu.cn
更新日期/Last Update: 2015-03-15