Refractory wall structure

C - Chemistry – Metallurgy – 21 – B

Patent

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Details

C21B 7/10 (2006.01) F27D 1/12 (2006.01)

Patent

CA 2292529

Refractory wall structure for a furnace, in particular for a metallurgical furnace, such as for example a blast furnace with a high process temperature during operation, which wall structure is subjected to a high thermal loading, comprising a steel outer wall, a refractory lining consisting of one or more layers of a well heat- conducting material on the inside of the outer wall, and means for cooling the refractory wall structure, whereby the wall structure also comprises a permanent, well heat- conducting metallic filling in a gap in the refractory wall structure, which filling has been molten inside the gap and then after solidifying forms a low heat resistance across the gap.

Structure de paroi réfractaire pour un four, notamment pour un four métallurgique, tel que par exemple un haut-fourneau à température de fonctionnement élevée. Ladite structure de paroi est soumise à une charge thermique élevée et comprend: une paroi externe en acier, un revêtement réfractaire consistant en une ou plusieurs couches de matériau conduisant bien la chaleur à l'intérieur de la paroi extérieure, des moyens pour refroidir la structure de paroi réfractaire. Ainsi, la structure de paroi comporte un matériau de remplissage métallique dans un espace situé dans la structure de la paroi réfractaire, lequel matériau a été fondu à l'intérieur dudit espace puis présente, après solidification, une faible résistance à la chaleur.

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