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Characterizing the blast furnace cohesive zone

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In the blast furnace the cohesive zone greatly influences the gas flow pattern, which in turn determines overall performance. Effective gas monitoring required by high coal injection rates cannot be achieved without a good knowledge of the cohesive zone characteristics and in particular its gaseous permeability. "Under load reduction" tests developed around the world are more concerned with the softening, melting and dripping temperatures of the ore. The objectives of this research project consist of characterising the permeability of the burden during softening and melting based on laboratory measurements, and in developing an improved model of the cohesive zone.

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CENTRE DE RECHERCHES METALLURGIQUES
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Rue Ernest Solvay, 11
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Belgien

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