基于Rand-MQC耦合算法的高强度铜闪速熔炼多相平衡热力学分析  

Multiphase Equilibrium Thermodynamics Analysis of High Strength Copper Flash Smelting Based on Coupled Algorithm of Rand-MQC

作　　者：李明周[1] 童长仁[1] 汪金良[1] 黄金堤[2] 李俊标[3] 

机构地区：[1]江西理工大学冶金与化学工程学院,江西赣州341000 [2]江西理工大学建筑与资源工程系,南昌330013 [3]金隆铜业有限公司,安徽铜陵244021

出　　处：《有色金属（冶炼部分）》2017年第2期4-9,14,共7页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51564018)

摘　　要：基于最小自由能原理和修正准化学溶液理论,采用Rand-MQC耦合算法,建立了高强度铜闪速熔炼多相平衡热力学分析数学模型,依此模型对某典型高强度生产工况进行了实例计算,并考察了吨矿氧和熔剂率对平衡产物组元活度及其含量的影响。实例计算和热力学分析结果表明,铜锍和炉渣相组成模型计算误差均在2%以下,接近生产测量值;为获得高铜锍品位且能较好控制渣含铜和渣中铁硅比,建议吨矿氧和熔剂率分别控制在215m3/t和11%左右。Based on theories of minimum free energy and modified quasi-chemical solution,Rand-MQC coupling algorithm was applied to establish mathematical model of multiphase balance for thermodynamic analysis of high-intensity copper flash smelting,and a typical high-strength production case was calculated.The effects of oxygen consumption for one ton ore（VOPTR）and flux rate（RFLUX）on activity and content of equilibrium products were investigated.Calculation and thermodynamic analysis results show that calculation errors of copper matte and slag phase composition are both less than 2%,which are close to production measurement value.VOPTRand RFLUXare recommended to be controlled at 215m3/t and 11%,in order to obtain high copper matte grade and better control of copper content and Fe/SiO2 ratio in slag.

关 键 词：铜 闪速熔炼 Rand-MQC耦合算法 多相平衡 热力学 

分 类 号：TF811[冶金工程—有色金属冶金]