Numerical Modeling of Hot Metal Flow and Heat Transfer in a Blast Furnace

2004 ◽  
Author(s):  
Fang Yan ◽  
Chenn Q. Zhou ◽  
D. Huang ◽  
Pinakin Chaubal
Keyword(s):  
Blast Furnace ◽  
Flow Pattern ◽  
Metal Flow ◽  
Hot Metal ◽  
Flow And Heat Transfer ◽  
Temperature Distributions ◽  
Campaign Life ◽  
Shape Structure ◽  
Key Variables ◽  
Computational Fluid Dynamics Cfd

Hearth wearing is the key limit of a blast furnace campaign life. Hot metal flow pattern and temperature distributions are the two key variables to determine the rate and style of the hearth wearing. And the shape, structure and position of the deadman are the three major variables to assign the fluid flow pattern and temperature profile in the hearth. In this paper, a new method for deadman description was put forward and a comprehensive computational fluid dynamics (CFD) code was described, which was developed specifically for the simulation of blast furnace hearth. That program can predict the liquid flow patterns and temperature distributions of the hot metal as well as temperature profiles in the hearth refractory materials under different conditions. The results predicted by the CFD code were evaluated by comparing with actual industrial operation data.

Validation of CFD Model for Hot Metal Flow and Heat Transfer Simulation in a Blast Furnace

2004 ◽  
Author(s):  
Fang Yan ◽  
Chenn Q. Zhou ◽  
D. Huang ◽  
Pinakin Chaubal
Keyword(s):  
Blast Furnace ◽  
Flow Pattern ◽  
Metal Flow ◽  
Sensitivity Study ◽  
Hot Metal ◽  
Flow And Heat Transfer ◽  
Temperature Distributions ◽  
Campaign Life ◽  
Key Variables ◽  
Computational Fluid Dynamics Cfd

Hearth wearing is the key limit of a blast furnace campaign life. Hot metal flow pattern and temperature distributions are the two key variables to determine the rate and style of the hearth wearing. And the shape, structure and position of the deadman are the three major variables to assign the fluid flow pattern and temperature profile in the hearth. In this paper, a comprehensive computational fluid dynamics (CFD) program which was developed specifically for the simulation of blast furnace hearth was extensively evaluated using actual industrial operation data. That program can predict the liquid flow patterns and temperature distributions of the hot metal as well as temperature profiles in the hearth refractory materials under different conditions. Sensitivity study has also been performed to investigate the effect of the production rate on refractory temperature distribution.

Numerical Investigation of Cooling Strategy for Reducing Blast Furnace Hearth Erosions

2005 ◽  
Author(s):  
Fang Yan ◽  
Chenn Q. Zhou ◽  
D. Huang ◽  
Pinakin Chaubal
Keyword(s):  
Blast Furnace ◽  
Metal Flow ◽  
Cooling Water ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Cooling Water Temperature ◽  
Cooling Strategies ◽  
Temperature Distributions ◽  
Blast Furnace Hearth ◽  
Campaign Life

Hearth wearing is the key limit of a blast furnace campaign life. Hot metal flow pattern and temperature distributions are the two key variables to determine the rate and style of the hearth wearing. There are several strategies to control and reduce the hearth erosion, such as changing cooling water temperature and changing the heat transfer coefficient. In this paper, both cooling strategies are investigated using a comprehensive computational fluid dynamics (CFD) code, which was developed specifically for the simulation of blast furnace hearth. That program can predict the liquid flow patterns and temperature distributions of the hot metal as well as temperature profiles in the hearth refractory materials under different conditions. The results predicted by the CFD code were compared with actual industrial operation data. The cooling strategies are evaluated based on the energy analysis and effect on the hearth erosion.

Computations of Liquid Flow and Heat Transfer in the Hearth of a Blast Furnace

2003 ◽  
Author(s):  
Steven Vernengo ◽  
Rade Milanovic ◽  
Chenn Q. Zhou ◽  
Pinakin Chaubal ◽  
D. Huang
Keyword(s):  
Blast Furnace ◽  
Liquid Iron ◽  
Cost Effective ◽  
Steel Mill ◽  
Iron And Steel ◽  
Flow And Heat Transfer ◽  
Steel Making ◽  
Campaign Life ◽  
Computational Fluid Dynamics Cfd ◽  
Economic Vitality

A blast furnace is a key facility in iron and steel making to convert iron oxides into liquid iron. The furnace campaign life is critical to the economic vitality of an integrated steel mill. The wearing of hearth refractories is widely recognized as the main limitation for a long campaign blast furnace life. Distribution of liquid iron flow and refractory temperatures have a significant influence on hearth wear. It is identified that the use of modern advanced techniques such as Computational Fluid Dynamics (CFD) provide the most cost effective solution to gauge the condition of the hearth and understand the reason for changes. In this research, a large commercial scale blast furnace hearth has been simulated using a comprehensive CFD model based on a simplified structure of deadman. The liquid iron flow pattern, temperature distribution in the liquid and the refractories, and the wearing profile in the hearth have been analyzed. A limited parametric study has also been performed. The results are promising and will be presented in the paper.

scholarly journals Dynamics of dead-man coke and hot metal flow in a blast furnace hearth.

1990 ◽  
Vol 30 (3) ◽  
pp. 208-215 ◽  
Author(s):  
Kouichirou Shibata ◽  
Yoshio Kimura ◽  
Masakata Shimizu ◽  
Shin-ichi Inaba
Keyword(s):  
Blast Furnace ◽  
Metal Flow ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth ◽  
Dead Man

Influence of Different Blast Furnace Dead-Man State to Hot Metal Flow Field in Hearth and Bottom

PRICM ◽  
2013 ◽  
pp. 3109-3118
Author(s):  
Guo Hongwei ◽  
Yan Bingji ◽  
Zhu Mengyi ◽  
Zhang Jianliang ◽  
Liu Yili
Keyword(s):  
Blast Furnace ◽  
Flow Field ◽  
Metal Flow ◽  
Hot Metal ◽  
Dead Man

scholarly journals Influence of Hot Metal Flow on the Heat Transfer in a Blast Furnace Hearth

1985 ◽  
Vol 71 (1) ◽  
pp. 34-40 ◽  
Author(s):  
Jiro OHNO ◽  
Masaharu TACHIMORI ◽  
Masakazu NAKAMURA ◽  
Yukiaki HARA
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Metal Flow ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth

A Methodology for Blast Furnace Hearth Inner Profile Analysis

2007 ◽  
Vol 129 (12) ◽  
pp. 1729-1731 ◽  
Author(s):  
Yu Zhang ◽  
Rohit Deshpande ◽  
D. Huang ◽  
Pinakin Chaubal ◽  
Chenn Q. Zhou
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Profile Analysis ◽  
Furnace Hearth ◽  
Temperature Distributions ◽  
Blast Furnace Hearth ◽  
Computational Fluid Dynamics Cfd ◽  
The Difference ◽  
New Algorithms ◽  
Face Temperature

The wear of a blast furnace hearth and the hearth inner profile are highly dependent on the liquid iron flow pattern, refractory temperatures, and temperature distributions at the hot face. In this paper, the detailed methodology is presented along with the examples of hearth inner profile predictions. A new methodology along with new algorithms is proposed to calculate the hearth erosion and its inner profile. The methodology is to estimate the hearth primary inner profile based on 1D heat transfer and to compute the hot-face temperature using the 3D CFD hearth model according to the 1D preestimated and reestimated profiles. After the hot-face temperatures are converged, the hot-face positions are refined by a new algorithm, which is based on the difference between the calculated and measured results, for the 3D computational fluid dynamics (CFD) hearth model further computations, until the calculated temperatures well agree with those measured by the thermocouples.

scholarly journals Numerical Investigation on Hot Metal Flow in Blast Furnace Hearth through CFD

2008 ◽  
Vol 48 (9) ◽  
pp. 1182-1187 ◽  
Author(s):  
Chen-En Huang ◽  
Shan-Wen Du ◽  
Wen-Tung Cheng
Keyword(s):  
Blast Furnace ◽  
Numerical Investigation ◽  
Metal Flow ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth

scholarly journals Influence of Hot Metal Flow State to the Hearth Flow Field during Blast Furnace Tapping

2013 ◽  
Vol 6 (13) ◽  
pp. 2409-2414
Author(s):  
Hong-Wei Guo ◽  
Bing-Ji Yan ◽  
Jian-Liang Zhang ◽  
He-Lan Liang ◽  
Yi-Li Liu
Keyword(s):  
Blast Furnace ◽  
Flow Field ◽  
Metal Flow ◽  
Flow State ◽  
Hot Metal
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