废轮胎裂解塔内加热盘面的传热传质模型

针对一种新型立式废轮胎裂解塔，建立了塔内橡胶小块沿盘面运动的传热传质模型，并给出
了塔内关键性能参数如料环高度、盘面积料及停留时间的计算公式。应用颗粒传热扩散理论及橡胶裂解动
力学方程，给出了裂解塔内每道料环的出料温度及橡胶裂解率的迭代计算公式，并从理论上给出了裂解塔
的最大处理量。应用该模型对一台中试装置进行了理论计算，计算结果与实验结果吻合较好。

Heat and mass transfer model of heating disks in pyrolysis plant for used tires processing

A mathematical model of the heat and mass transfer in a new vertical pyrolysis plant for used tires processing was presented. The formulas for several important parameters, such as height, volume of each granular heap and retention time were provided (along) with the new mass transfer model. According to the penetration model of particle heat transfer and the kinetic model of tire pyrolysis, the exiting temperature and rubber remnant content in granular heaps were effectively predicted by a straightforward stepwise calculation procedure, and the maximum pyrolytic capacity was predicted as well. The model and equations were applied in a established pyrolysis plant, and the resulting theoretical predictions were in satisfactory agreement with the experimental data.