煤程序降温实验研究

Research on Coal Programmed Cooling Experiments

通过对煤样进行程序升温、降温实验,研究煤炭升温后降温过程中气体产生情况及规律,并与升温过程中实验结果进行对比分析,发现降温过程与升温过程中煤自燃特性参数及气体产生情况有相似的地方,但也存在一定差异。CO在升温实验中出现温度和降温实验中消失温度相同,但C2H4与C2H6出现、消失的温度都不同,CO/CO2的比值也有所不同。

Programmed cooling experiments are carried out to research the gas generation of cooling process,and contrast with the results of program temperature experiments,found the characteristic parameters of coal spontaneous combustion and the gas generation are similarities,but there are also some differences. The temperature of CO appeared in heating experiments are the same to the temperature of disappeared in cooling experiments,but the appearance temperature and the disappearance temperature of C2H4 and C2H6are different,the ratio of CO / CO2 is also different.