Abstract:Recently, the supply of coking coal is becoming increasingly tight, and increasing the coal charge quantity of a single hole of coke ovens under existing equipment has become a research focus. Because traditional physical experiments are labor-intensive and highly uncertain,a simulation model based on the discrete element method is established to study the coal loading and leveling process in the carbonization chamber. The results show that due to the wall effect caused by the structure of the carbonization chamber, the coordination number and bulk density of the coal in different regions are significantly different, resulting in the serious gap between the machine side and the coke side and the phenomenon of coal loading dissatisfaction. In view of this problem, by changing the loading sequence of different coal drop ports, it is found that when the coal drop ports near the coke side and the machine side first drop coal, the coal can provide support for gaps on both sides, thus effectively increasing the total coal weight. As for the flat coal process, a combination of two long flat coals and two short flat coals has been determined, which has the effect of compacting and homogenizing the coal material in the carbonization chamber, and significantly improving the coke side angle problem.