Abstract: A 3D numerical simulation study was performed to simulate the physical and chemical processes in two-spray pre-calciner widely used in cement production.The relation between gas components distribution and rates of coal combustion and carbonate decomposition was studied.A calcium carbonate decomposition model applicable for industrial analysis based on previous work was used, and the total coal combustion rate and total carbonate decomposition rate were obtained by using numerical simulation.This article presents a method for predicting the distribution of gas components coming from different sources and provides theoretical information for the analysis of coal combustion and calcium carbonate decomposition on the commercial scale.

摘要： 对水泥生产中广泛使用双喷腾分解炉系统进行了3D数值模拟研究，深入研究和分析了分解炉中气体成分来源对煤粉燃尽率和碳酸钙分解率之间的影响关系.在前人研究的基础上运用适用于工业研究的碳酸钙分解模型，数值模拟求解了煤粉总体燃尽率和碳酸钙总体分解率.提出了一种预测分解炉内不同来源气体成分分布的方法，为工业研究分解炉中煤粉燃烧和碳酸钙分解问题提供了理论依据.