将晶粒模型用于描述炉内石灰与二氧化硫的反应，并在晶粒模型上量化地模拟了反应产物层堆积使反应气体扩散受阻和晶粒体积增加的情况，利用经验性公式考虑了由于石灰烧结对反应的影响，编制出相应程序，并将模型结果与文献试验数据进行了比较与分析 The grain model is used to describe the reaction between lime and sulfur dioxide in the furnace. The grain model is used to quantitatively simulate the reaction product layer accumulation to obstruct the diffusion of the reaction gas and the increase of the grain volume. The empirical formula is used to consider the limestone Sintering on the reaction, the preparation of the corresponding procedures, and the model results and the literature data were compared and analyzed