January
2004 |
Prediction
and Prevention of Slopping in a BOF
Maxim Shakirov, Senior
Project Engineer, Anatoli Boutchenkov, Project Manager, Grigori
Galperine, President, and Barry Schrader, Director of Sales,
ZapTech Corp., Norcross, Ga. (bschrad@attglobal.net)
A
model was developed to predict and prevent slopping in a BOF
by controlling slag height in the vessel in real time. The
system modifies charging and blowing practices based on actual
conditions experienced in the BOF. |
Design Aspects of an Ideal Oxygen Steelmaking Converter
Günther
Staudinger, General Manager — Engineering, and Johannes
Müller, Metallurgy Specialist, Voest-Alpine Industrieanlagenbau
GmbH, Linz, Austria; Danilo Di Napoli Guzela, Manager —
Technical Div., and Joaci G de Oliveira, Manager — Steel
Plant, Companhia Siderúrgica Paulista (Cosipa), Cubatão,
Brazil (guenther.staudinger@vai.at)
Advances
in converter shells, suspension systems, cooling systems and
dynamic process control are reviewed. The new BOF installation
at Cosipa is also presented. |
BOF
Hood Life Cycle Cost Improvement Program
George A. Stemetzki,
Vice President, Welding Services Inc., Norcross, Ga.; Matthew
M. Kuta, Mechanical Coordinator — BOP Maintenance, U.
S. Steel Corp., Edgar Thomson Plant, Braddock, Pa.; and Claude
Shepard, Manager — Utilities, Fuels, General Services
and Costs, Weirton Steel Corp., Weirton, W.Va. (gstemetzki@wsi.aquilex.com)
Alloy
625 has proved to be an effective weld overlay to reduce wear
on BOF hoods due to corrosion/erosion mechanisms. Two case
studies are presented where significant increases in production
and equipment reliability have been achieved through the use
of Alloy 625 weld overlays. |
Lance-Based
Sensing and Vision Systems
Soren T. Jensen, Senior
Engineer, and Michel P. Bonin, Vice President — Business
Development, Process Metrix LLC, San Ramon, Calif.; William
Federoff, U. S. Steel Corp., Edgar Thomson Plant, Braddock,
Pa.; Nick Rymarchyk Jr., Executive Vice President, and Todd
Smith, Berry Metal Co., Harmony, Pa. (sjensen@processmetrix.com)
Lance-based sensors provide opportunities for real-time, in-situ
temperature measurements in the BOF and vacuum degassing process.
The use of lance- based vision systems for vacuum degassers
is also
presented.
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