陕西煤炭2024，Vol.43Issue(8)：46-51,6.DOI:10.20120/j.cnki.issn.1671-749x.2024.0809
浅埋厚煤层综采工作面采空区自燃"三带"划分
Division of goaf spontaneous combustion"three belts"on fully mechanized working face with shallow buried thick coal seam
摘要
Abstract
Oxygen in the gob is the main factor that causes the spontaneous combustion of coal in the gob,and its main source is air leakage in the gob.In order to explore the"three zones"of spontaneous combustion and the law of air leakage in the goaf,the concentration distribution of oxygen and carbon monoxide is tested.The concentration changes of five gases,such as oxygen and carbon monoxide,in the 4109 south working face and 4109 working face of Sujiagou Coal Mine from o-pening the cutting hole to mining in a certain range in the goaf are measured and observed.This paper analyzed and calcu-lated the advancing speed of fully mechanized mining face,the distribution range of"three zones"of spontaneous combus-tion in goaf,the concentration relationship of five kinds of gases and the main parameters of spontaneous combustion danger area.The research results have theoretical guidance and reference significance for the study on the division of three zones of spontaneous combustion in fully mechanized mining face and similar working face of Sujiagou Coal Mine and the prevention of spontaneous combustion of abandoned coal.关键词
浅埋厚煤层/综采工作面/采空区/自燃"三带"/防灭火Key words
shallow buried thick coal seam/fully mechanized working face/goaf/spontaneous combustion"three belts"/fire prevention and control分类
矿业与冶金引用本文复制引用
杨夺..浅埋厚煤层综采工作面采空区自燃"三带"划分[J].陕西煤炭,2024,43(8):46-51,6.基金项目
内蒙古自治区高等学校科学研究项目资助(NJZY22439) （NJZY22439）
