Rev. Met. Paris
Volume 93, Number 1, Janvier 1996
|Page(s)||55 - 68|
|Published online||18 January 2017|
Development of coal injection in the blast furnace at Usinor Sacilor*
Études théoriques et pratique industrielle des fortes injections de charbon dans les hauts- fourneaux d’Usinor Sacilor
All blast furnaces within Usinor Sacilor are presently equipped with coal injection systems.
A significant drop of coke rate has resulted from the progress in the understanding of the basic phenomena related to coal injection and simultaneously from a good operational control of the technique at each step of the process.
The key point for a further reduction of coke rate is the proper process control of the blast furnace, especially with respect to the gas distribution in the hearth and the shaft. Advanced control techniques are to be used to achieve simultaneously low heat losses, good protection of the walls together with high gas efficiency and smooth operation.
© La Revue de Métallurgie 1996
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