摘要
为了保障海域煤层的安全回采,采用实验分析和现场测定的方法对北皂煤矿海域煤层自燃指标气体、H2103综放工作面采空区自燃"三带"和H2106两巷壁后煤体氧化规律进行了研究。得知:应以CO,C2H4作为海域自然发火的主要气体指标,海域综放面采空区内部可能自燃范围为3.8～27.15m,海域综掘面两巷的顶板冒落区和破碎区是煤体自燃防范的重点。
In order to guarantee the safe exploitation of the coal seam in sea area,the method of experimental analysis and practical mensuration is adopted to research the index gas about spontaneous combustion of sea seam in Beizao Coal Mine,the ＂three zones＂ of spontaneous combustion in gob of H2103 fully mechanized caving face,and the oxidative law about the coal behind the wall of the two laneways in H2106 fully mechanized driving face.It can be concluded that CO and C2H4 should be taken as the main index gas,the possible range to spontaneous combustion in gob of the fully mechanized caving face is 3.8～27.15m,and the roof falling region and crushing zone are the emphases to prevent spontaneous combustion in two laneways of the fully mechanized driving face.
出处
《煤炭技术》
CAS
北大核心
2010年第10期76-78,共3页
Coal Technology
关键词
海域开采
氧化
自燃
exploitation underground sea
oxidation
spontaneous combustion
