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2012 March Issue
Full Table of Contents
Coke & Ironmaking Technologies |
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About the Cover
On 5 January 2010, Hyundai Steel Co. commenced successful operation of the first blast furnace of its integrated steel mill project in Dangjin, South Korea. In April 2007, Hyundai Steel and the Paul Wurth Group commenced the design of two nearly identical large (5,250 m3 inner volume), modern ironmaking plants. Since successful blow-in of No. 1 BF, production has ramped up and exceeds the planned nominal operation of 11,650 tHM per day and the required BF performance parameters. The integrated steel plant employs the latest environmentally friendly technologies.
Photo courtesy of Paul Wurth Inc.
Full magazine available in the Members Only Area. |
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Technical Features Table of Contents |
| 39 |
Transformation of Silicon-Bearing Coke Minerals in Blast Furnace
Top row (left to right): ZhuoZhu Ye, Ph.D. candidate; Sushil Gupta, senior researcher, Centre for Sustainable Materials Research and Technology (SMaRT@UNSW), School of Material Science and Engineering, The University of New South Wales, Sydney, Australia; and Olavi Kerkkonen, research manager, Rautaruukki Oyj, Helsinki, Finland (zhuozhu.ye85@student.unsw.edu.au, sushil@unsw.edu.au, olavi.kerkkonen@ruukki.com)
Bottom row (left to right): Riku Kanniala, development manager, Rautaruukki Oyj,
Helsinki, Finland; and Veena Sahajwalla, professor and director, Centre for Sustainable Materials Research and Technology (SMaRT@UNSW), School of Material Science and Engineering, The University of New South Wales, Sydney, Australia (riku.kanniala@ruukki.com, veena@unsw.edu.au)
This paper quantifies mineral phases of lower-zone coke with particular focus on transformation of silicon-bearing minerals. The implications of silicon carbide formation on coke properties are also discussed. |
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An Investigation of Unstable Blast Furnace Operations Caused by Stockpiled Iron Ore Pellets
Stuart Street
ironmaking technology manager, ironmaking department, Severstal Dearborn,
Dearborn, Mich., USA,
stuart.street@severstalna.com
Inventory management has a large influence on raw material quality. This paper reviews cause and effect of using stockpiled iron ore pellets on blast furnace operations. |
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63 |
Ironmaking in Western Europe
Hans Bodo Lüngen,
senior manager operation unit, technology, Steel Institute VDEh,
Düsseldorf, Germany;
hans-bodo.lüngen@vdeh.de
Michael Peters,
senior vice president hot metal production, ThyssenKrupp Steel Europe AG,
Duisburg, Germany; m.peters@thyssenkrupp.com,
Peter Schmöle,
head of ironmaking technology, ThyssenKrupp Steel Europe AG, Duisburg, Germanyp.schmoele@thyssenkrupp.com
This paper focuses on the evolution of ironmaking in Western Europe, including the developments in hot metal production, the progress in the structure of reductants and ore burden materials, an evaluation of blast furnace constructional features and equipment and an outlook for the European ironmaking scenario.
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70 |
Combustibility of Charcoal for Direct Injection in Blast Furnace Ironmaking
Ka Wing Ng,
research engineer, CanmetENERGY,
Ottawa, Ont., Canada;
kng@nrcan.gc.ca,
Louis Giroux
research scientist, CanmetENERGY,
Ottawa, Ont., Canada,
lgiroux@nrcan.gc.ca;
Tony MacPhee,
research scientist, CanmetENERGY,
Ottawa, Ont., Canada,
tmacphee@nrcan.gc.ca;
Ted Todoschuk,
principal researcher, ArcelorMittal Dofasco Inc.,
Hamilton, Ont., Canada,
ted.todoschuk@arcelormittal.com
Modeling work has indicated that successful replacement of PCI by charcoal injection could reduce blast furnace ironmaking CO2 emissions. To further charcoal injection technology, combustibility of charcoals were examined using thermal gravimetric analysis. |
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Enhancing Coke Production Energy Efficiency While Reducing Emissions
Robert Kramer,
NiSource Charitable Foundation Professor of Energy and the Environment, Purdue University – Calumet,
Hammond, Ind., USA;
kramerro@purduecal.edu,
Liberty Pelter,
associate professor, chemistry and physics department, Purdue University – Calumet,
Hammond, Ind., USA,
pelterl@purduecal.edu;
Hardarshan S. Valia,
Coal Science Lab,
Gary, Ind., USA,
hvalia@comnetcom.net;
Alan Ellis,
Coal Science Lab,
Gary, Ind., USA,
arellis@hotmail.com
This paper describes the development of a new approach for producing coke and ancillary products in a multipurpose coke facility that uses up to 40% lower-rank coal in an environmentally friendly manner. |
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Changes in Coke Densities in a Blast Furnace
D. (Frank) Huang,
staff engineer, ArcelorMittal Global R&D East Chicago,
East Chicago, Ind., USA,
frank.huang@arcelormittal.com;
Marcelo Andrade,
manager, raw material and ironmaking, ArcelorMittal Global R&D East Chicago,
East Chicago, Ind., USA,
marcelo.andrade@arcelormittal.com
One of the important roles of coke in an ironmaking blast furnace is to maintain the gas path for the furnace permeability. The densities of cokes after gasification were measured. In this paper, the correlation between coke densities and gasification rates will be presented. |
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