Mathematical simulation of hot metal desulfurization during KR process coupled with an unreacted core model

作     者：Yanyu Zhao Wei Chen Shusen Cheng Lifeng Zhang Yanyu Zhao;Wei Chen;Shusen Cheng;Lifeng Zhang

作者机构：School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing 100083China School of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China School of Mechanical and Materials EngineeringNorth China University of TechnologyBeijing 100144China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2022年第29卷第4期

页      面：758-766页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：financially supported by the National Science Foundation China(No.52104343) the Natural Science Foundation of Hebei Province,China(No.E2021203222) support from the High Steel Center(HSC)at Yanshan University North China University of Technology,China 

主　　题：desulfurization unreacted core model desulfurizer dispersion KR process fluid flow 

摘      要：A three-dimensional mathematical model was established to predict the multiphase flow,motion and dispersion of desulfurizer particles,and desulfurization of hot metal during the Kanbara reactor(KR)*** turbulent kinetic energy-turbulent dissipation rate(k-ε)turbulence model,volume-of-fluid multiphase model,discrete-phase model,and unreacted core model for the reaction between the hot metal and particles were *** measured sulfur content of the hot metal with time during the actual KR process was employed to validate the current mathematical *** distance from the lowest point of the liquid level to the bottom of the ladle decreased from 3170 to2191 mm when the rotation speed increased from 30 to 110 r/min,which had a great effect on the dispersion of desulfurizer *** critical rotation speed for the vortex to reach the upper edge of the stirring impeller was 70 r/min when the immersion depth was 1500 *** desulfurization rate increased with the increase in the impeller rotation speed,whereas the influence of the immersion depth was relatively *** for different rotation parameters on the desulfurization rate constant and turbulent energy dissipation rate were proposed to evaluate the variation in sulfur content over time.