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November
2004 |
Blast
Furnace Lining and Cooling Technology: Experiences at Corus
IJmuiden
Ron
Stokman, senior sales manager, Egenolf van Stein Callenfels,
senior technologist, and Reinoud van Laar, senior technologist,
Danieli Corus BV, IJmuiden, Netherlands (ron.stokman@corusgroup.com)
This article describes the blast furnace lining and cooling
concept as originally developed and applied by Hoogovens (Corus
IJmuiden). The technology has also been applied by Danieli
Corus in all its blast furnace projects executed in the last
25 years. |
Start-up
of the Blast Furnaces at ISG Cleveland
Jeffrey L. Drummond,
manager — operations, ISG Cleveland Inc., Cleveland,
Ohio (jdrummond@intlsteel.com)
Following
the shutdown of the old LTV Corp. facility, ISG Cleveland
implemented an asset protection plan for restarting the furnaces.
This article provides a brief overview of the start-up plan,
as well as the expectations for the new company culture and
its effect on iron producing.
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Snort Valve
Replacement at WCI Steel
Walter A. Toot, WCI
Steel Inc., Warren, Ohio (watoot@wcisteel.com)
The
replacement of a snort valve at WCI Steel involved an industry
survey as well as a look back at previous WCI experiences.
Selection criteria and installation details for the new snort
valve, silencer and operator are discussed.
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Web-based
Computer Model for Blast Furnace Performance Analysis
Yongfu Zhao (top left),
Christopher J. Rabold (top center), and Stephen E. Yaniga
(top right), U. S. Steel Corp. Research & Technology Center,
Monroeville, Pa.; Aaron Daniels (bottom left) and Michael
L. Zmierski (bottom center), U. S. Steel Corp. Gary Works,
Gary, Ind.; Sandy Feltmate (bottom right), U. S. Steel Corp.
Mon Valley Works, Braddock, Pa.; and Beverly Salter, U. S.
Steel Corp. Fairfield Works, Fairfield, Ala. (yzhao@uss.com)
A
Web-based computer model that provides mass- energy balance
analysis also considers the effects of nonequilibrium conditions
that often occur in blast furnace reactions. The model provides
sufficient
information to determine the validity of instrumentation data,
identify the casuses of furnace upsets and guide furnace operation. |
Alternating
Taphole Practice With a Two-taphole Blast Furnace
Angelo Petruccelli
(pictured), ironmaking technology, Floris van Laar, senior refractory
specialist, Frank Hribljan, maintenance specialist, and Brian
Boettcher, operations specialist, Dofasco Inc., Hamilton, Ont.,
Canada (angelo_petruccelli@dofasco.ca)
Dofasco’s
No. 4 blast furnace, a two-taphole furnace, adopted an alternating
taphole casting practice in the mid-1990s. The constraints
of a single-taphole practice, efforts to maximize two-taphole
availability and the change in casthouse practices are discussed.
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Mathematical
Modeling of Steel Flow in the Tundish of a 6-strand Continuous
Casting Machine
Tomasz Merder, Jan Jowsa,
Marek Warzecha, and Stanislaw Garncarek Faculty of Materials
Processing Technology and Applied Physics Technical University
of Czestochowa, Czestochowa, Poland |
Numerical
Modeling of Fluid Flow Into a Ladle During Bottom Gas Injection
Marek
Warzecha, Jan Jowsa, Stanislaw Garncarek, and Tomasz Merder
Faculty of Materials Processing Technology and Applied Physics
Technical University of Czestochowa, Czestochowa, Poland |
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