一、概况1、泉沟煤矿地处山东省新汶矿区新泰县境内。井田走向4km;倾斜宽2.4km。煤层系石炭、二迭系沉积,共有可采煤层7层,其中2、4、6层为上组,11、13、15、16层为下组,均为薄及中厚、缓倾斜煤层。该井田所有可采煤层均属有煤尘爆炸危险煤层,煤尘爆炸指数35～45%,其中13层煤有自然发火倾向。历年瓦斯鉴定结果均为低沼气和低二氧化碳矿井。 I. Overview 1, Quanyou coal mine is located in Xintai County, Shandong Province, the territory of mining. Minefield to 4km; tilt width 2.4km. The coal seams are composed of Carboniferous and Permian sediments. There are 7 layers of recoverable coal seams, of which 2, 4, 6 are the upper group, 11, 13, 15 and 16 are the lower group, all of which are thin and medium thick, gently inclined seam . All mineable coal seams in this field belong to coal dust explosion danger seam, the coal dust explosion index is 35-45%, of which 13th layer coal has natural tendency to fire. The gas identification results over the years are low biogas and low carbon dioxide mine.