使用二维冷态模型对预还原竖炉反应过程进行了可视化模拟实验，同时在二维柱坐标系下数值模拟 Ｃ Ｏ Ｒ Ｅ Ｘ 预还原竖炉反应过程 数学及物理的仿真结果得出：在预还原竖炉操作过程中径向上反应进行程度不同，铁矿石的还原率径向差异较大 The two-dimensional cold model was used to simulate the reaction process of the pre-reduction shaft furnace and the numerical simulation was carried out under two-dimensional cylindrical coordinate system. The mathematical and physical simulation results of C O R E X pre-reduction shaft furnace In the process of pre-reduction shaft furnace radial reaction to varying degrees, the reduction rate of iron ore radial difference larger