Computational Fluid Dynamics Analysis of 3D Hot Metal Flow Characteristics in a Blast Furnace Hearth

2010 ◽  
Vol 2 (1) ◽  
Author(s):  
Chenn Q. Zhou ◽  
D. (Frank) Huang ◽  
Yongfu Zhao ◽  
Pinakin Chaubal
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Blast Furnace ◽  
Metal Flow ◽  
Measurement Data ◽  
Operating Conditions ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth ◽  
Computational Fluid Dynamics Analysis

The campaign life of an iron blast furnace depends on hearth wear. Distributions of liquid iron flow and refractory temperatures have a significant influence on hearth wear. A 3D comprehensive computational fluid dynamics model has been developed specifically for simulating the blast furnace hearth. It includes both the hot metal flow and the conjugate heat transfer through the refractories. The model has been extensively validated using measurement data from Mittal Steel old, new IH7 blast furnace and U.S. Steel 13 blast furnace. Good agreements between measured and calculated refractory temperature profiles have been achieved. It has been used to analyze the velocity and temperature distributions and wear patterns of different furnaces and operating conditions. The results can be used to predict the inner profile of hearth and to provide guidance for protecting the hearth.

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

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

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.

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

Physical modelling of hot metal flow in a blast furnace hearth

2001 ◽  
Vol 30 (4) ◽  
pp. 225-231 ◽  
Author(s):  
Matti Juhani Luomala ◽  
Olli Juhani Mattila ◽  
Jouko Juhani Harkki
Keyword(s):  
Blast Furnace ◽  
Metal Flow ◽  
Physical Modelling ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth

Hot metal flow in a blast furnace hearth - model tests

1985 ◽  
Vol 56 (11) ◽  
pp. 547-551 ◽  
Author(s):  
Karl-Heinz Peters ◽  
Heinrich-Wilhelm Gudenau ◽  
Gunnar Still
Keyword(s):  
Blast Furnace ◽  
Metal Flow ◽  
Model Tests ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth

Kinetics of dead-man coke and hot metal flow in a blast furnace hearth

1990 ◽  
Vol 87 (4) ◽  
pp. 333-340 ◽  
Author(s):  
K. Shibata ◽  
Y. Kumura ◽  
M. Shimizu ◽  
S. Inaba
Keyword(s):  
Blast Furnace ◽  
Metal Flow ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Blast Furnace Hearth ◽  
Dead Man ◽  
Kinetics Of

Hot metal flow characteristics and its contribution to hearth erosion in the early stage of blast furnace campaign

2021 ◽  
Vol 118 (4) ◽  
pp. 410
Author(s):  
Lei Zhang ◽  
Jianliang Zhang ◽  
Kexin Jiao ◽  
Xiaoke Zhang ◽  
Sijia Duan ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Early Stage ◽  
Metal Flow ◽  
Flow Characteristics ◽  
Molten Iron ◽  
Hot Metal ◽  
Furnace Hearth ◽  
Utilization Factor ◽  
Furnace Campaign ◽  
Blast Furnace Hearth

Hot metal circulation is one of the most important factors for hearth erosion. In this article, both the production conditions reflected by production parameters and the actual erosion state are considered. A series of cases are set up to analyze the hot metal flow characteristics and its contribution to hearth erosion. The main results are as follow: (1) There are two asymmetric high-speed bands existed on both side of the taphole, which is caused by the inner shape of blast furnace hearth and will cause the erosion of blast furnace hearth. (2) The velocity inside the deadman has an obvious decrease from top to middle part and then keeps almost stable, especially at the edge of deadman. It is caused by the inhibition effect of molten iron flow around deadman, and may result in a slower update rate of deadman in the lower part as well as an increase of carbon unsaturation in the molten iron. (3) The velocity of line 4–5# around the bottom increases with the increasing of daily output, and decreases with the increasing of the depth of salamander. Therefore, in the early stage of the blast furnace campaign, a production process with high utilization factor will increase hearth erosion. (4) The inner shape of hearth and the distance between sidewall and deadman are the main factors affecting the flow rate of molten iron.

scholarly journals Computational fluid dynamics analysis of the influence of injection nozzle lateral outflow on the performance of Ranque-Hilsch vortex tube

2014 ◽  
Vol 18 (4) ◽  
pp. 1191-1201 ◽  
Author(s):  
Nader Pourmahmoud ◽  
Alireza Izadi ◽  
Amir Hassanzadeh ◽  
Ashkan Jahangiramini
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Field ◽  
Vortex Tube ◽  
Operating Conditions ◽  
Energy Separation ◽  
Physical Parameters ◽  
Dynamics Analysis ◽  
Computational Domain ◽  
Computational Fluid Dynamics Analysis

In this article computational fluid dynamics analysis of a three-dimensional compressible and turbulent flow has been carried out through a vortex tube. The standard k-? turbulence model is utilized in order to simulate an axisymmetric computational domain. The numerical simulation has focused on the energy separation and flow field patterns of a somewhat nonconventional vortex tube, which is on the basis of creating an external hole at the end of each nozzle. According to the selected nozzles geometry, some of unfavorable phenomena such as shock wave, high pressure regions and appearing of unsymmetrical rotating flow patterns in the vortex chamber would be recovered significantly. In this way the physical parameters of flow field are derived under different both inlet mass flow rates and outlet pressures of nozzles hole (OPH). The results show that increasing OPH value enhanced the cooling capacity of machine in the most of operating conditions.

Computational Fluid Dynamics Analysis of a Steam Power Plant Low-Pressure Turbine Downward Exhaust Hood

1996 ◽  
Vol 118 (1) ◽  
pp. 214-224 ◽  
Author(s):  
R. H. Tindell ◽  
T. M. Alston ◽  
C. A. Sarro ◽  
G. C. Stegmann ◽  
L. Gray ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Integrated Approach ◽  
Low Pressure ◽  
Operating Conditions ◽  
Exhaust Hood ◽  
Steam Power ◽  
Low Pressure Turbine ◽  
Computational Fluid Dynamics Analysis ◽  
Turbine Exhaust

Computational fluid dynamics (CFD) methods are applied to the analysis of a low-pressure turbine exhaust hood at a typical steam power generating station. A Navier-Stokes solver, capable of modeling all the viscous terms, in a Reynolds-averaged formulation, was used. The work had two major goals. The first was to develop a comprehensive understanding of the complex three-dimensional flow fields that exist in the exhaust hood at representative operating conditions. The second was to evaluate the relative benefits of a flow guide modification to optimize performance at a selected operating condition. Also, the influence of simulated turbine discharge characteristics, relative to uniform hood entrance conditions, was evaluated. The calculations show several interesting and possibly unique results. They support use of an integrated approach to the design of turbine exhaust stage blading and hood geometry for optimum efficiency.

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