腾东煤矿综放工作面自然发火危险性判定
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摘要
为了分析综放开采工作面自然发火规律,并对工作面自然发火危险性进行判定。选取滕东煤矿3下107综放工作面进行研究,首先以氧气浓度为主要指标,温度作为辅助指标,将107工作面进行自燃"三带"的划分,然后对3下107综放工作面进行沿空测温与取样观测,以此为依据建立自然发火危险性评价模型,并对该工作面进行自然发火危险性评判,研究表明:3下107工作面危险度为63.41%,该工作面属于极易自然发火工作面。
In order to analyze the laws of spontaneous combustion in the face of fully mechanized top-coal caving face, the danger of spontaneous combustion in the face is determined. This paper studies the 3 lower 107 fully mechanized coal caving face in Tengdong Coal Mine. Firstly, oxygen concentration is taken as the main index, and temperature is used as an auxiliary index to divide the 107 face into spontaneous combustion "three zones", and then the temperature measurement and sampling observation along the goaf are carried out at the 3 lower 107 fully mechanized caving face to establish a spontaneous combustion risk assessment model based on this, and a spontaneous combustion risk assessment was carried out at the working face. The study showed that the hazard level at the 3 lower 107 working face was 63.41%. The working face belongs to the working face which is extremely easy to ignite naturally.
In order to analyze the laws of spontaneous combustion in the face of fully mechanized top-coal caving face, the danger of spontaneous combustion in the face is determined. This paper studies the 3 lower 107 fully mechanized coal caving face in Tengdong Coal Mine. Firstly, oxygen concentration is taken as the main index, and temperature is used as an auxiliary index to divide the 107 face into spontaneous combustion "three zones", and then the temperature measurement and sampling observation along the goaf are carried out at the 3 lower 107 fully mechanized caving face to establish a spontaneous combustion risk assessment model based on this, and a spontaneous combustion risk assessment was carried out at the working face. The study showed that the hazard level at the 3 lower 107 working face was 63.41%. The working face belongs to the working face which is extremely easy to ignite naturally.
引文
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[2]李洪刚,张大明.采空区自然发火危险区域判定[J].辽宁工程技术大学学报(自然科学版),2009,28(5):697-700.
[3]陈龙,仲晓星,李虎,等.新集二矿111300工作面采空区自燃“三带”研究[J].煤矿安全,2017,48(12):164.
[4]张龙,袁树杰,朱成涛.俯采工作面采空区“三带”分布研究[J].中国安全生产科学技术,2013,9(5):67-71.
[5]杜斌,艾兴.复合采空区自燃“三带”范围确定方法[J].煤矿安全,2016,47(12):187-190.
[6]王刚,程卫民,周刚.综放工作面采空区自燃“三带”分布规律的研究[J].矿业安全与环保,2010,37(1):18.
[7]褚廷湘,杨胜强,刘国忠,等.模糊综合评价对采空区自然发火的评价及应用[J].中国安全生产科学技术,2008,4(1):124-127.
[8] TeVrucht M L E, Griffiths P R.Activation energy of airoxidized bituminous coals[J]. Energy&fuels, 1989, 3(4):522-527.
[9]张国枢,谢应明,顾建明.煤炭自燃微观结构变化的红外光谱分析[J].煤炭学报,2003,28(5):473-476.
[10]夏永洋.采场煤炭自然发火危险性评估[J].煤矿安全,1996,27(5):26-28.
[11]郭允相.海域开采自然发火规律及早期预防技术研究[D].青岛:山东科技大学,2009:69-70.