CFD Modeling and Analysis of The Flow, Heat Transfer and Mass Transfer in a Blast Furnace Hearth

2011 ◽  
Vol 82 (5) ◽  
pp. 579-586 ◽  
Author(s):  
Bao-Yu Guo ◽  
Ai-Bing Yu ◽  
Paul Zulli ◽  
Daniel Maldonado
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Blast Furnace ◽  
Cfd Modeling ◽  
Furnace Hearth ◽  
Modeling And Analysis ◽  
Blast Furnace Hearth ◽  
Flow Heat

Numerical Investigation on Cooling Strategies in a Commercial Blast Furnace Hearth

2004 ◽  
Author(s):  
Anil K. Patnala ◽  
Chenn Q. Zhou ◽  
Yongfu Zhao
Keyword(s):  
Blast Furnace ◽  
Cooling Water ◽  
Operating Conditions ◽  
Cfd Modeling ◽  
Dominant Factor ◽  
Furnace Hearth ◽  
Blast Furnace Hearth ◽  
Campaign Life ◽  
Parametric Effects ◽  
Flow Heat

A blast furnace is the predominant iron-producing process in the U.S. It is widely believed that the blast furnace hearth refractory is the most dominant factor affecting the campaign life of a blast furnace. The hearth, where the liquid metal is collected, is made of carbon bricks. Cooling water is normally applied to the outside wall of the hearth. Wear of the carbon refractory occurs primarily because of erosion, which is related to the operating conditions of the hearth, such as the liquid flow in the hearth and the heat duty to the walls. Evaluation of fluid flow, heat transfer, and erosion patterns in the hearth are critical to the extension of the campaign life of a blast furnace, leading to the increase of productivity and saving of costs significantly. Advanced computational fluid dynamics (CFD) modeling techniques make it possible for providing detailed information on furnace conditions and parametric effects on performance. In this research, the blast furnace No. 13 at U.S Steel has been simulated using a comprehensive CFD model. The model was validated using the temperatures measured by thermocouples in the wall refractories of the furnace. The effects of cooling water on the temperature distributions as well as erosion patterns were evaluated. The results provide useful information for the furnace operations.

CFD Modeling of Skull Formation in a Blast Furnace Hearth

2012 ◽  
Author(s):  
Dong Fu ◽  
Yan Chen ◽  
Chenn Q. Zhou ◽  
Yongfu Zhao ◽  
Louis W. Lherbier ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Cooling Water ◽  
Operating Experience ◽  
Protective Layer ◽  
Cfd Modeling ◽  
Furnace Hearth ◽  
Cooling Water Temperature ◽  
Blast Furnace Hearth ◽  
Skull Formation

The formation of the protective layer of solidified metal (skull) is critical to the blast furnace hearth operation. Enhancement of the formation of the skull layer could extend the hearth lining life and blast furnace campaign. In this paper, a CFD model that consists of solidification, flow, heat transfer has been utilized to simulate the skull formation phenomena in a blast furnace hearth. The heat transfer characteristics and temperature distribution of the skull and refractory brick has been investigated. The simulated results are comparable with operating experience of U. S. Steel blast furnaces. Parametric study includes lining property and structure, cooling water temperature and flow rate, hot metal (HM) temperature and the production rate, as well as cast practice.

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.

Heat Transfer Modelling of a Blast Furnace Hearth

2010 ◽  
Vol 81 (3) ◽  
pp. 186-196 ◽  
Author(s):  
M. Swartling ◽  
B. Sundelin ◽  
A. Tilliander ◽  
P. G. Jönsson
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Furnace Hearth ◽  
Blast Furnace Hearth ◽  
Transfer Modelling

Numerical modelling of iron flow and heat transfer in blast furnace hearth

2002 ◽  
Vol 29 (5) ◽  
pp. 390-400 ◽  
Author(s):  
V. Panjkovic ◽  
J. S. Truelove ◽  
P. Zulli
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Numerical Modelling ◽  
Furnace Hearth ◽  
Flow And Heat Transfer ◽  
Blast Furnace Hearth

scholarly journals CFD Modelling of Liquid Metal Flow and Heat Transfer in Blast Furnace Hearth

2008 ◽  
Vol 48 (12) ◽  
pp. 1676-1685 ◽  
Author(s):  
Bao-Yu Guo ◽  
Daniel Maldonado ◽  
Paul Zulli ◽  
Ai-Bing Yu
Keyword(s):  
Heat Transfer ◽  
Blast Furnace ◽  
Liquid Metal ◽  
Metal Flow ◽  
Furnace Hearth ◽  
Cfd Modelling ◽  
Flow And Heat Transfer ◽  
Blast Furnace Hearth ◽  
Liquid Metal Flow
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