Abstract:

The traditional coal blending coking theory could not adapt modern coal source conditions as it is established based on single type of coal.It is necessary to determine the caking and coking properties of coking coal according to Chinese classification principles of coal and reflectance distribution diagram of commercial coal,which could also identify the degree of mixed coal,correctly evaluate the property of mixed coal and its role in coking coal blending,and make appropriate coal blending scheme through coking in small coke ovens.The test shows that reasonable use of mixed coal in coal blending could reduce negative factors of mixed coal in coal blending so that coke of high quality could be produced which could meet the requirement of blast furnace production.