基于CFD-DEM耦合的铜闪速熔炼炉数值仿真研究  

Numerical Simulation of Gas-Particle Characteristics in Copper Flash Smelting Furnace

作　　者：骆祎 LUO Yi(YANGXIN HOGNSHENG COPPER INDUSTRY CO.,LTD.,Huangshi 435200,China)

机构地区：[1]阳新弘盛铜业有限公司,湖北黄石435200

出　　处：《世界有色金属》2024年第12期32-36,共5页World Nonferrous Metals

摘　　要：采用CFD-DEM耦合方法对阳新弘盛实际生产条件下的闪速熔炼炉进行模拟计算,对闪速炉颗粒分散,气-粒速度、温度,颗粒停留时间、反应物浓度等关键参数进行分析和研究。通过仿真结果可以直观地显示颗粒的分散情况以及生产过程,闪速熔炼炉反应塔内颗粒和气相呈锥形分散,在距反应塔顶部2米内颗粒温度迅速升高,颗粒中CuFeS_(2)质量分数急剧减小,颗粒平均在1秒内就已到达沉淀池表面,这表明颗粒在进入反应塔后迅速达到反应温度并发生反应。通过模拟获得的闪速熔炼炉各部分平均温度模与实际现场生产的测量温度基本一致,验证了本文铜闪速熔炼炉仿真模型的准确性和可靠性。A CFD-DEM coupling method is adopted to simulate the cooper flash smelting furnace and the key parameters such as gas velocity and temperature,particle temperature and residence time under given working conditions are analyzed and studied.The simulation results show that in the flash smelting furnace reactor shaft,the particle and gas phase are both conical in distribution.Within 2m from the top of the reactor shaft,the average temperature of particles increases rapidly,and the mass fraction of CuFeS_(2) in concentrate particles decreases sharply,indicating that particles reach the reaction temperature and react quickly after entering the reactor.The residence time results show that particles reach the surface of the settler within 1s.The predicted average temperature of the flash smelting furnace is basically consistent with the temperature provided by the technologist,indicating that the simulation model established is accurate in the calculation of the copper flash smelting process.

关 键 词：铜闪速熔炼 数值模拟 CFD DEM 

分 类 号：TQ172.63[化学工程—水泥工业]