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实验采用ZRJ-1型煤自燃倾向测定仪,分别对不同煤样进行不同温度下吸附氧气后的脱附实验。实验得出脱附过程中的氧气的状态变化过程特征曲线,曲线斜率随脱附出的氧气浓度变化而变化。整体表现为2个波峰,其中后1个波峰表现为拖尾峰。不同温度下的煤的物理吸氧量变化规律为随着温度的升高物理吸氧量呈整体下降趋势,在一定温度范围内有波动。
Experiments using ZRJ-1 coal spontaneous combustion propensity detector, respectively, different coal samples were desorbed after adsorption of oxygen at different temperatures. The characteristic curves of the state of oxygen during the desorption process are obtained experimentally. The slope of the curve varies with the concentration of oxygen desorbed. The overall performance of 2 peaks, of which 1 after the peak showed a tailing peak. The variation of physical oxygen uptake of coal under different temperatures shows that the physical oxygen uptake tends to decrease as the temperature increases, and fluctuates within a certain temperature range.