为了明确小风量对煤自燃产生气体的影响,采用自制煤自燃程序升温实验装置,研究分析了不同小风量(1、2 mL/min及3 mL/min)条件下气体产生规律。结果表明:常温下氧浓度在13.08%时,煤样仍能够发生氧化;风量越小,氧浓度越低,CO气体浓度越高;工作面供风量减小,导致采空区出现CO气体浓度增大,停采时间越长,采空区CO气体浓度越大,但是并不能证明采空区温度有上升趋势。 In order to clarify the influence of small amount of air on spontaneous combustion of coal, a self-made spontaneous combustion program was used to raise the temperature of the device. The generation of gas under different small air volumes (1,2 mL / min and 3 mL / min) was studied. The results show that the coal sample can still be oxidized when the oxygen concentration is 13.08% at room temperature; the smaller the air volume, the lower the oxygen concentration, the higher the CO concentration; the smaller the air supply on the working face, resulting in the increase of CO concentration The longer the shutdown time, the greater the concentration of CO gas in the goaf, but it does not prove that the goaf temperature has an upward trend.