澳大利亚近20年的发火情况。在新南威尔士的煤矿,根据矿山监察员报告和调查,1985～1986年煤矿井下共发生32次明火和一次自然发火,因此,该矿面临明火的危胁。1981年 Anon 介绍了在澳大利亚曾四次使用惰气控制井下自热的情况。其中三次是在新南威尔士矿井,成功地运用这项工艺技术处理了小规模的火灾事故。1、冈尼达煤矿。1978年在一个离地表只有18m,已封闭一年的采空区发现了自 Australia in the last 20 years of fire. In the coal mines in New South Wales, according to mine ombudsman reports and surveys, a total of 32 naked flames and a spontaneous fire occurred in coal mines between 1985 and 1986 and the mine is therefore exposed to flames. In 1981, Anon introduced the use of inert gas to control downhole self-heating in Australia four times. Three of them were at a mine in New South Wales and successfully used this process technology to deal with small-scale fire accidents. 1, Gunnedah coal mine. In 1978, it was found in a goaf that was only 18m from the surface of the earth and had been closed for one year