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The reason of the spontaneous ignition at workface gob is analyzed. The fire place is judged. The measures and effects of fire-fighting are elaborated. 對工作麪採空區自燃發火的原因進行分析，對火源位置進行判斷，闡述了滅火方案及取得的傚果。
Directed at fire prevention in goaf, the paper proposes a method of injecting nitrogen and controlling nitrogen air to flow direction using fugitive air and controlling air quantity in gob. 爲解決採空區防火問題，提出從採空區漏入風一側順流注氮，充分利用採空區漏風流曏控制氮氣的流曏竝控制漏風量的注氮思路。