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阳泉四矿是有60多年开采历史的老矿。矿井有三个主要可采煤层,8~#层于1961年已采完,现采12~#、15~#两个煤层。12~#煤层是单一煤层,未发生过自燃。15~#层为中厚煤层,1950～1988年共发生10多次自燃。目前矿井有7个采区,5个生产区,2个准备区,所发生的10多次自燃主要发生在18、20、24采区。24采区已回收,保留通风大巷,18、20采区处于开采后期,现在三个采区内时有高温地点出现和CO泄出现象。为利于今后矿井安全生产,现将矿井历次自燃浅析如下。
Yangquan four mines is more than 60 years of mining history of the old mine. The mine has three main recoverable coal seam, 8 ~ # layer has been taken in 1961, now mining 12 ~ #, 15 ~ # two coal seam. 12 ~ # seam is a single coal seam, spontaneous combustion has not occurred. The 15 ~ # layers are medium and thick coal seams, and spontaneous combustion occurred more than 10 times from 1950 to 1988. At present, the mine has 7 mining areas, 5 production areas and 2 preparation areas. More than 10 spontaneous combustion occurred mainly in the 18,20,24 mining areas. 24 The mining area has been recycled and the ventilation lanes are reserved. The 18 and 20 mining areas are in the later stage of mining. At present, there are high-temperature spots and CO leakage in the three mining areas. In order to facilitate the safe production of the mine in the future, the mine spontaneous combustion is as follows.