铬铁矿电炉冶炼高碳铬铁现状与发展趋势  

PRESENT SITUATION AND FUTURE DEVELOPMENT TREND OF SMELTING HIGH CARBON FERROCHROME WITH CHROMITE BY ELECTRIC FURNACE PROCESS

作　　者：郭宇峰[1] 李志伟 杨景军 王帅[1] 陈凤[1] 刘飞 杨凌志[1] GUO Yufeng;LI Zhiwei;YANG Jingjun;WANG Shuai;CHEN Feng;LIU Fei;YANG Lingzhi(School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China;Shanxi Engineering Vocational College,Taiyuan 030001,China;Xintai Industrial Group Co.,Ltd.,Ulangab 012100,China)

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]山西工程职业学院,山西太原030001 [3]新太实业集团有限公司,内蒙古乌兰察布012100

出　　处：《铁合金》2023年第4期43-50,共8页Ferro-alloys

基　　金：中南大学研究生科研创新项目(校企联合项目)(项目编号:2023XQLH055)。

摘　　要：介绍了铬铁矿电炉法冶炼生产高碳铬铁现状及未来发展方向。当前全球范围内高碳铬铁的冶炼方式以电炉冶炼为主,可将冶炼方式分为开放式/半封闭式交流埋弧炉冶炼、封闭式交流埋弧炉冶炼、预还原-封闭式交流埋弧炉冶炼、开放式直流明弧炉冶炼。随着电炉容量扩大,允许配入的粉矿占比越来越小,需要对炉料进行造块预处理,方法包括烧结、球团、压团。此外铬铁矿中铬还原温度高,渣系熔化温度高,冶炼过程中能耗高、碳排放高。未来高碳铬铁生产需要从炉料清洁制备、炉渣制度优化及冶炼技术研究等方面开展研究。The present situation and future development direction of smelting high carbon ferrochrome production with chromite by electric furnace process were reviewed in the paper.At present,the smelting methods of high carbon ferrochrome in the world are mainly electric furnace smelting,which can be divided into open/semi-closed AC submerged arc furnace smelting,closed AC submerged arc furnace smelting,prereduction-closed AC submerged arc furnace smelting,open DC open arc furnace smelting.With the expansion of electric furnace capacity,the proportion of powder ore allowed to be added is getting smaller and smaller,and it is necessary to pretreat the burden by agglomeration,including sintering,pelletizing and briquetting.In addition,chromite reduction temperature is high as well as the melting temperature of system of slag;the energy consumption and carbon emission in smelting process are high.The future production of high carbon ferrochrome needs to be studied from the aspects of clean preparation of furnace charge,optimization of slag system and smelting technology.

关 键 词：高碳铬铁 电炉冶炼 炉料预处理 渣系优化 

分 类 号：TF641.31[冶金工程—钢铁冶金]