关键词: 焦炉, 炭化室, 燃烧室, 耦合模型, 数值模拟

Abstract: To describe fluid flow, combustion and heat transfer in coke oven,a three-dimensional transient mathematical model with coupled coking and combustion chambers was developed and solved numerically. The calculated central temperature of the coke was compared with measured data. Three different evaporation models were compared. Effects of operational factors such as temperature, moisture content and density of charging coal were investigated. It is shown that the proposed model is suitable for describing thermal processes in the coke oven. It reveals whether the temperature distribution is uniform along the height of the chambers with coking evolution. Some measures may be used to improve the production efficiency, such as preheat, adjustment of moisture content,and densification for charging coal. This work is theoretically valuable for the operation of coke oven.

Key words: coke oven, coking chamber, combustion chamber, coupling model, numerical simulation