Abstract:

Through the measurement of optical organization and thermal property of coke, the relationship between the optical organization feature and quality of coke after the addition of lean coal and meagre and lean coal is discussed. After the addition of lean coal and meagre and lean coal, the optical organization takes the fine grain inlay and medium grain inlay as the main, silk like carbon and fragment are relative more. The optical organization structure unit of medium size coke is more favorable to improve the strength of coke. Through regression analysis the coke quality prediction model is established and the coke reactivity index and post reaction strength can be obtained directly through the measurement of coke optical organization content.