高强度铜闪速熔炼过程颗粒行为仿真研究  

Particle Behavior Simulation during High Strength Copper Flash Smelting Process

作　　者：李俊标[1] 谢剑才 王凤阳[1] 

机构地区：[1]金隆铜业有限公司,安徽铜陵244021

出　　处：《有色金属（冶炼部分）》2015年第9期35-38,共4页Nonferrous Metals（Extractive Metallurgy)

摘　　要：通过在Fluent中增加铜精矿颗粒燃烧模块,建立闪速熔炼仿真模型,对闪速熔炼炉冶金过程颗粒行为进行仿真研究。通过在给定工艺条件下对颗粒的运动速度及轨迹、存活时间、颗粒温度变化、氧化程度及颗粒在沉淀池分布状况进行模拟。研究表明,精矿颗粒在进入反应塔内平均存留时间较短,并不断偏离反应塔中央,闪速熔炼炉内颗粒温度受颗粒直径的影响,粒度越小,温度上升越快,20μm的颗粒受漩涡的影响程度比较大且易随烟气排出。Particle behavior during flash smelting furnace metallurgical processes was simulated by adding copper concentrate particulate combustion module in Fluent and simulation model of flash smelting was established. Movement velocity and trail of particles, survival duration, particle temperature, oxidation degree and distribution of particles in sedimentation tank were simulated under given process conditions. The results show that average persistence duration is short and particles continually deviate from reaction tower center after entering reaction tower. Particle temperature in flash smelting furnace is affected by particle diameter, that is, the smaller particle size is, the faster temperature rises. Particles with φ20 μm is easily affected by vortex and discharged from flue gas.

关 键 词：铜 闪速熔炼 FLUENT 颗粒行为 数值模拟 

分 类 号：TF811[冶金工程—有色金属冶金]