A Brilliant Outlook

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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


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