煤是可燃物质,各种牌号的煤都有自燃的可能性,尤其是烟煤、褐煤、泥煤自燃可能性更大。煤炭自燃的原因很多,最基本的原因是煤吸附空气中的氧,并与之产生氧化作用,氧化放出热量,在有蓄热条件下使温度升高,直至达到煤的燃点温度而发生自燃。 关于煤的自燃成因,其详细内容见本期“物质自燃成因及预防”一文。 Coal is a combustible material, all kinds of coal have the possibility of spontaneous combustion, especially bituminous coal, brown coal, peat is more likely to spontaneous combustion. Spontaneous combustion of coal for many reasons, the most basic reason is the coal adsorption of oxygen in the air, and with the oxidation, oxidation release heat in the heat storage conditions to make the temperature rise until it reaches the ignition temperature of coal spontaneous combustion. About the cause of spontaneous combustion of coal, see the details of this issue, “the causes of spontaneous combustion and prevention,” a text.