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January
2005 |
Upgrade
of Legacy Automation Systems
Howard Chapman (left),
project director, BlueScope Steel, Wollongong, Australia;
and Huseyin Erkoru (right), program director, process control
projects, CSC, North Ryde, Australia (howard.chapman@bluescopesteel.com,
herkoru@csc.com.au)
Shadowing
technologies were employed at BlueScope Steel to upgrade both
the PLC and process computer systems on its hot strip mill.
The proprietary-type system was upgraded to an open system
architecture without causing any mill downtime. |
Conversion
to Fully Automatic Operation at a Hot Strip Mill Slab Yard
Cesare Corti, general
manager, and Leonardo Speranza, control systems manager, ILVA
SpA, Taranto, Italy; and David Stocker (pictured), leader
— crane automation systems, TM GE Automation Systems
LLC, Salem, Va. (david.stocker@tmeic-ge.com)
A project to fully automate the operation of the slab yard
that feeds ILVA SpA hot strip mill No. 2 is nearing completion.
The remote and unmanned crane operation provided by the new
automation and control system offers several major benefits,
including significantly reduced operating costs. |
Process
Control Technology for Thin Strip Production in Tangshan,
China
Naoki Shimoda (left)
and Ken Okamoto (center), Toshiba Mitsubishi-Electric Industrial
Systems Corp., Tokyo, Japan; Wan Hailong, Tangshan Iron &
Steel Co. Ltd., Tangshan, P.R. China; and Liu Wenzhong (right),
University of Science and Technology Beijing, Beijing, P.R.
China (shimoda.naoki@tmeic.co.jp, okamoto.ken@tmeic.co.jp,
tgutsp@public.tsptt.he.cn)
Process control is an essential technology for the operation
of any steel plant and the quality of its products. This article
provides details of the mechanical and electrical equipment
and process control features for the ultra thin strip production
line at Tangshan Iron & Steel Co. |
Three-dimensional
Computational Modeling of a Blast Furnace Hearth
Fang Yan and Chenn
Q. Zhou, Department of Engineering, Purdue University Calumet,
Hammond, Ind.; D. (Frank) Huang and Pinakin Chaubal, Ispat
Inland Inc., East Chicago, Ind.; and Yongfu Zhao (pictured),
U. S. Steel Research and Technology Center, Monroeville, Pa.
(yzhao@uss.com)
In
order to visualize the flow, temperature and wear patterns
in a blast furnace hearth and to ultimately prolong campaign
life, computational fluid dynamics software was developed.
This article reveals details of the software and its design
and implementation. |
Application
of Multivariable and Predictive Control Techniques in Modern
Hot Strip Rolling Mills
Gerald Hearns
(left), senior systems engineer, Tony Bilkhu (second from
left), technical coordinator — process industries, and
Chris Fryer (second from right), chief engineer, ALSTOM Power
Conversion Ltd., Rugby, U.K.; and Paul Smith (right), senior
systems design engineer, ALSTOM Power Conversion Inc., Pittsburgh,
Pa. (gerald.hearns@powerconv.alstom.com, paul-1.smith@powerconv.alstom.com)
Modern
gauge, mass and temperature control for hot strip rolling
mills can lead to higher-quality product as well as safer
and more efficient mill operation. The practical implementation
of advanced control techniques is discussed, along with real-life
performance results.
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