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孤岛综放面在正常回采期间,四周均是采空区,具有复杂的多源多汇漏风通道,采空区后自燃“三带”的确定对防灭火具有重要的意义。根据孤岛综放面采空区的特点,分别通过现场实测和采用FLUENT软件数值模拟的方法,判定实际条件下运河矿1302孤岛综放面“三带”分布规律,为孤岛综放面自燃火灾的防治提供理论依据。
The fully mechanized top-coal caving face in island during the normal recovery period is all gob area, with complicated multi-source and multi-sink air leakage channel. The determination of spontaneous combustion “three belts” after gob area is of great significance to fire prevention and extinguishment. According to the characteristics of gob in fully mechanized caving face, the distribution rules of “three belts” of fully mechanized caving face with 1302 islands in Canal Mine under actual conditions were respectively measured by on-site measurement and numerical simulation using FLUENT software. Fire prevention and control to provide a theoretical basis.