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介绍了焦炭高温热性质测定装置的特点以及主要功能,并通过应用建立了焦炭起始反应温度的测定方法,可以用来表征高炉热储备区的开始温度,指导高炉生产。通过对焦炭在不同温度下的反应速率的测定,发现随着混合反应气体中CO_2比例增加,焦炭反应速率呈增加的趋势;随着反应温度增加,焦炭反应速率呈增加的趋势;反应温度越高,随着CO_2比例增加,焦炭反应速率增加越快;在CO_2比例较低时,不同反应温度下的焦炭反应速率都不大,但当CO_2比例达到50%时,焦炭反应速率随温度升高而明显提高,从0.43g/min提高到2.00g/min。
The characteristics and main functions of high temperature and thermal property determination device of coke were introduced. The determination of initial reaction temperature of coke was established by application, which can be used to characterize the start temperature of blast furnace thermal reserve area and guide the blast furnace production. By measuring the reaction rate of coke at different temperatures, it was found that the coke reaction rate increased with the increase of the CO 2 proportion in the mixed reaction gas. With the increase of the reaction temperature, the coke reaction rate increased. The higher the reaction temperature, , The coke reaction rate increased faster with the increase of CO 2 ratio, while the coke reaction rate was not large at different reaction temperature with a lower CO 2 ratio. However, when CO 2 content reached 50%, coke reaction rate increased with temperature Significantly increased from 0.43g / min to 2.00g / min.