Title :
Numerical modelling of a slag-metal behavior of smelting reduction process: Ironmaking technology based on the hismelt
Author :
Zhengchao, Yue ; Shan, Qing ; Hua, Wang
Author_Institution :
Fac. of Electr. Power Eng., Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
A liquid bath model for simulating the liquid slag and metal behavior of multi-fluid problems defined in 3D cylindrical geometries is presented, which is developed based on computational fluid dynamics (CFD) approach. As to the issue of the multi-phase flow, a volume of fluid (VOF) model and standard k-epsi turbulent model are employed in this model. The volume fraction distribution of liquid slag and metal is obtained from the this model. The numerical predictions clearly reveal that the ldquosplashrdquo phenomenon in Hismelt process is a reality, which will increase the heat transfer efficiency from post-combustion region to liquid bath, and the presence of a slag layer has important influences on the bath fluid dynamics and metal quality, because it can keep metal away from oxidizing gas, thus avoid oxidized.
Keywords :
computational fluid dynamics; heat transfer; liquid metals; multiphase flow; slag; smelting; steel manufacture; turbulence; 3D cylindrical geometry; Hismelt process; bath fluid dynamics; computational fluid dynamics; heat transfer; ironmaking technology; liquid bath model; liquid slag simulation; metal quality; multifluid problem; multiphase flow; numerical modelling; oxidizing gas; postcombustion region; slag layer; slag-metal behavior; smelting reduction; splash phenomenon; turbulent model; volume fraction distribution; Computational fluid dynamics; Instruments; Iron; Mathematical model; Metals industry; Numerical models; Power engineering and energy; Slag; Smelting; Solid modeling; “splash”; CFD; HIsmelt process; liquid slag and metal; multi-phase model; volume fraction;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274014