根据目前采空区自燃“三带”的研究现状,确定了基于采空区煤自燃的上限氧浓度和下限氧浓度、采空区自燃“三带”现场观测及数值模拟、MIN-MAX综合处理法的采空区自燃“三带”的综合划分方法,划分了采空区自燃“三带”范围.以新疆哈密三道岭煤矿4204综放工作面为例进行实际应用,确定了该工作面采空区的自燃“三带”范围.实践表明,该划分方法确定的“三带”能更好地反映浮煤自燃的实际情况,对具有类似条件的采空区防火具有参考价值.
According to the present research situation, the comprehensive classification method of goaf sponta- neous combustion "three-zone" has been confirmed, based on the upper and lower limits of oxygen concentra- tion, "three-zone" observation, numerical simulation, and MIN - MAX comprehensive treatment method. The range of spontaneous combustion "three-zone" in goal has been divided. The fully-mechanized caving mining working face of Sandaoling 4204 in Hami city of Xinjiang has been regarded as an example for practical appli- cation, and the range of spontaneous combustion " three-zone" in goaf has been determined. The practice shows that "three-zone" determined by this dividing method can better reflect the actual situation of coal spon- taneous combustion, and it has a reference function to the gob fire of similar conditions.