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根据仿真实验定义了煤的自燃点。采用引领绝热仿真法进行了自燃点测定,在不同引领条件下自燃点重复度达到98%,考察了供氧浓度、干燥脱附、阻化处理、煤种不同等因素对自燃点的影响,证明自燃点反映了煤的内在自燃性,煤的自燃点是评价煤自燃倾向性的科学指标。
According to the simulation experiment, the spontaneous combustion point of coal is defined. The adiabatic simulation method was used to measure the spontaneous combustion point. The repeatability of spontaneous combustion point reached 98% under different leading conditions. The influence of oxygen concentration, desorption, desorption treatment and different kinds of coal on spontaneous combustion point was investigated. Spontaneous ignition point reflects the inherent spontaneous combustion of coal, coal spontaneous combustion point is to evaluate the spontaneous combustion of coal science indicators.