多枪顶吹连续吹炼过程中喷枪排布方式的数值模拟  

Numerical Simulation of Lance Arrangement in Multiple-Lance Top-Blowing Continuous Converting Process

作　　者：于海波[1,2] 罗劲松 邓戈[1,2] 朱鹏春 胡一平[1,2] 黄浩宸 李文杰 王仕博[2] 胡建杭 YU Haibo;LUO Jinsong;DENG Ge;ZHU Pengchun;HU Yiping;HUANG Haochen;LI Wenjie;WANG Shibo;HU Jianhang(Southwest Copper Branch,Yunnan Copper Co.,Ltd.,Kunming 650101,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology,Kunming 650093,China;China Copper Southeast Copper Co.,Ltd.,Ningde 352106,Fujian,China)

机构地区：[1]云南铜业股份有限公司西南分公司,昆明650101 [2]昆明理工大学冶金与能源工程学院,昆明650093 [3]中铜东南铜业有限公司,福建宁德352106

出　　处：《有色金属（冶炼部分）》2024年第8期1-10,共10页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2022YFC3902000)。

摘　　要：多枪顶吹连续吹炼工艺因其低空污染小、炉衬寿命长、连续化程度高等优点而备受冶金行业瞩目。以工业冶金炉窑为研究对象,基于计算流体力学,对多枪顶吹连续吹炼炉内气-渣-铜锍多相混合流场进行了数值模拟。探索了多枪单排布置和交错式布置对炉内流场、湍动能和气含率的影响。研究表明,相较于双排交错式喷枪布置方案,单排布置具有更强的搅拌能力、较大的熔池横向及纵向扩散范围,以及更小的静态区域体积。此外,喷枪单排布置方案下的气含率始终高于双排交错布置,证明了单排的喷枪排布方式有利于渣层搅拌效率的提高,加速铜沉降,降低生产能耗。The continuous multiple-lance top-blowing process has attracted much attention in metallurgical industry for its advantages of low pollutant gas emission,long service life,and high continuity.With industrial metallurgical furnace as the research object,numerical simulation of gas-slag-copper matte multiphase mixed flow in the continuous multiple-lance top-blowing furnace was carried out by means of computational fluid dynamics.The effects of single-row and staggered arrangement of multiple lances on the flow field,turbulent kinetic energy and gas holdup in the furnace were explored.The results show that compared with the two-row staggered lance arrangement method,the single-row arrangement method has higher mixing capacity,larger lateral and vertical spreading ranges of the molten,and a lower volume of stirring dead region.Moreover,the gas holdup under the single-row lance arrangement method is consistently higher than that under the double-row staggered arrangement,which proves that the former operating method is conducive to the improvement of the slag layer mixing efficiency,accelerated copper sedimentation,and reduced production energy consumption.

关 键 词：铜冶炼 多枪顶吹吹炼 火法冶炼 数值模拟 喷枪排布 

分 类 号：TF811[冶金工程—有色金属冶金]