In the last few years, CPM developed a first generation of charging model for coke
ovens to improve the uniformity of oven filling and to reduce charging emissions.
A new charging model has been recently built to simulate all kinds of charging process
with 3, 4 or 5 charging holes and to obtain a more reliable representation of the levelling
operation. More particularly, coal accumulation in each compartment of the leveller bar
is represented, in order to have a better idea of the gas free space during the levelling
operation. By using this model, it is now possible to suppress or reduce coal accumulation
in the oven free space during the levelling operation and to obtain a constant and uniform
coal profile at the end of charging, without gas emissions.