210t RH精炼装置脱碳过程的数值模拟  

Numerical simulation for decarburization process in 210 t RH refining reactor

作　　者：谌君儒 彭文 黄雅婷[1,2] 雷洪 CHEN Junru;PENG Wen;HUANG Yating;LEI Hong(Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110004,China;School of Metallurgy,Northeastern University,Shenyang 110004,China;School of Materials,Northeastern University,Shenyang 110004,China)

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110819 [2]东北大学冶金学院,辽宁沈阳110819 [3]东北大学材料学院,辽宁沈阳110819

出　　处：《辽宁科技大学学报》2021年第2期92-98,共7页Journal of University of Science and Technology Liaoning

基　　金：国家自然科学基金与宝钢联合基金(U1460108);国家级大学生创新创业训练计划(202010145267);中央高校基本科研业务专项资金(N182410001)。

摘　　要：RH是降低钢液碳含量、提高钢液纯净度的重要冶金反应器。准确确定RH装置内碳氧含量随时间的变化关系是控制RH脱碳行为的关键。脱碳数学模型考虑了活度和烟气化学成分的影响,并利用变步长四阶龙格库塔算法进行求解。数值结果与210 t RH工业试验结果相符。数值结果给出了容积系数、活度、二氧化碳生成量、压降模式、氩气流量等因素对钢液中碳含量的影响。在这些参数中,容积系数和压降模式是两个最重要的因素。RH is an important metallurgical reactor to decrease carbon content and improve purity of liquid steel.Accurate determination of caron and oxygen contents is the key to control the decarburization behavior in RH.This decarburization mathematical model considers the effects of the activity and the chemical compositions of the exhaust gas,and uses variable step fourth order Runge-Kutta algorithm to solve the problem.The numerical results agree well with the industrial data,revealing the effects of the factors,such as volumetric coefficient,activity,carbon dioxide production,pressure drop mode,and argon flow rate,on the carbon content in molten steel.Among these factors,volumetric coefficient and pressure drop mode are two key factors.

关 键 词：RH真空精炼 脱碳数学模型 变步长四阶龙格库塔算法 二氧化碳的生成 活度 

分 类 号：TF769.4[冶金工程—钢铁冶金]