(1. 中南大学 冶金与环境学院，长沙 410083；
2. 中南大学 能源科学与工程学院，长沙 410083)
摘 要: 伴随着铜闪速炉产能与熔炼强度的不断提高，闪速炉反应塔内温度场、浓度场等物理场的微观信息分布特点发生了明显的变化，其反应配风之间的参数配比关系对炉内熔炼过程的影响作用更为突出。采用正交设计的方法，就闪速炉生产操作的3个主要配风参数(工艺风、分散风、中央氧)对炉内气、粒混合反应过程的影响关系进行系统仿真研究，得到基准工况条件下的操作参数优化配比方案。仿真结果表明：分散风速度对气、粒混合反应过程的影响占主导地位；在优化工况条件下，炉内熔炼过程效率进一步提高，其烟尘发生率可控制在3.2%左右，炉内氧气基本消耗完全。
关键字: 闪速熔炼；数值仿真；正交试验；参数优化
（1. School of Metallurgy and Environment, Central South University, Changsha 410083, China;
2. School of Energy Science and Engineering, Central South University, Changsha 410083, China）
Abstract:With an continuous increasing in the productivity and smelting intensity of the copper flash smelting furnace, distributions of physical fields, such as the temperature field and concentration field in the reaction shaft change significantly, and the matching scheme of operational parameters for different air flows becomes more and more important. Based on the orthogonal design method, the simulation study was carried out to investigate the effects of operational parameters of the main three air flows (i.e. the process air, the distribution air and the central oxygen) on the mixing and reaction process in the reaction shaft. The simulation results show that the distribution air velocity has more significant effect on the mixing and reaction process compared to the other two air flows. The smelting efficiency of the optimal case is further improved, of which the dust generation rate can be controlled around 3.2%, and the residual oxygen in the flue is nearly zero.
Key words: flash smelting; numerical simulation; orthogonal experiment; parameter optimization
