Influence of Temperature Distribution in Combustion Chamber on Coke Cake Discharging Behavior

To achieve stable operation of coke oven batteries, a numerical model for estimating the clearance between the coke cake and the coke oven wall was developed. The influence of the temperature distribution in the combustion chamber on coke cake contraction was investigated by using the developed model. As a result, the following findings were obtained.1) A temperature decrease on the coke side (CS) results in a larger clearance decrease at the end of the coke chamber compared with a temperature decrease on the machine side (MS).2) The clearance decrease at the end of CS causes a higher pushing load of coke cake. Therefore, improvement of the CS flue gas temperature is particularly important for reducing the pushing force of the coke cake.