Method for forming a moving hearth in a furnace for...

Details Method for forming a moving hearth in a furnace for... Method for forming a moving hearth in a furnace for...

F - Mech Eng,Light,Heat,Weapons

27

D

F27D 1/00 (2006.01) C21B 13/00 (2006.01) C21B 13/10 (2006.01) F27B 9/16 (2006.01) F27B 21/02 (2006.01) F27D 1/16 (2006.01) F27D 3/00 (2006.01)

Patent

CA 2316829

A moving hearth is formed by providing a layer of hearth material primarily composed of iron oxide on a base refractory in a reducing furnace and then sintering the earth material so that the sintered moving hearth is not melted at an operational temperature in a reducing step. The moving hearth is more easily constructed compared to providing a shaped or amorphous refractory on the base refractory, has high durability, and can maintain surface flatness during operation.

L'invention concerne un foyer mobile. Ce foyer est formé par une couche d'un matériau composé d'oxyde de fer sur une base réfractaire dans un four réducteur. Le matériau du foyer est ensuite fritté de telle sorte qu'il ne fonde pas à la température de l'étape de réduction. Ce foyer est facile à construire par rapport au foyer avec une base réfractaire amorphe. Il présente une grande durée de vie et conserve la planéité de sa surface pendant le fonctionnement.

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