Optimization of coke oven charging by use of a mathematical model

摘要

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.%Au cours de ces dernieres annees, le CPM a developpe une premiere generation de modeles de chargement de fours a coke pour ameliorer la regularite du chargement et reduire les emissions en cours de chargement. Un nouveau modele de chargement est propose pour simuler tous les types de chargement avec 3, 4 ou 5 bouches d'enfournement et obtenir une description plus fidele des operations de repalage. Le modele decrit, en particulier, la repartition du charbon entre les compartiments de la barre de repalage, permettant ainsi de mieux evaluer le canal sous voute et l'evacuation des gaz. Le modele permet d'eviter les accumulations de charbon au cours du repalage et d'obtenir une repartition homogene du charbon en fin de chargement, sans emission de gaz.