INTEGRATED PLANTS
Completion of the largest single-line stainless steel works in the world
IRON & STEEL >
A Brilliant Outlook Carinox is the name of the new stainless steelmaking plant of Ugine & ALZ in Charleroi, Belgium. The meltshop is part of the European-based flat-product stainless-steel branch of Arcelor Mittal, the largest steel producer in the world. Following the successful completion of all guarantee tests in March 2007, this project has come to a successful conclusion for Siemens VAI. The Carinox plant is capable of producing approximately one million tons of ferritic, martensitic and austenitic stainless-steel grades per year.
F
or this milestone project, Siemens VAI was re-
transported to the EAF bay. The EAF itself has an eight-
sponsible for the overall engineering, erection,
meter diameter, and as such is the largest sized furnace
and commissioning of the steel works. This in-
employed in stainless steelmaking. It is complimented
cluded the turnkey supply of a 160-ton electric arc fur-
by a 160-MVA transformer which is the most powerful
nace, a 180-ton AOD converter, a twin-180-ton-stand
in the world used in stainless steel production. A
ladle-treatment station with a common furnace, a sin-
Level 3 planning system provides the setpoints to the
gle-strand slab caster in addition to auxiliary plants and
automation system. A process model calculates a cost-
the dedusting and automation systems. The plant was
optimized melting practice for each single scrap blend.
compactly designed with totally optimized logistics
The required flux and alloy additions are accurately
and offers the possibility for future expansion.
calculated and automatically charged to the furnace. A dynamic regulation system maximizes the power in-
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Electric arc furnace
put and monitors and controls thermal radiation. The
Raw materials are transported to the site by either rail
economy of operation is further increased through the
or water transport. In the scrap yard different scrap
injection of oxygen and carbon/FeSi through the open
qualities are weighed, loaded in baskets, and then
slag door by means of a water-cooled lance. This pro-
metals & mining 1-2008