Preshaped blast furnace hearth construction

Details Preshaped blast furnace hearth construction Preshaped blast furnace hearth construction

C - Chemistry, Metallurgy

21

C

39/66, 39/89

C21C 7/00 (2006.01) C21B 7/10 (2006.01)

Patent

CA 1070943

ABSTRACT OF THE DISCLOSURE A blast furnace hearth constructed of carbon blocks and having an initially dished upper face. The hearth includes a plurality of courses of full carbon beams and a plurality of courses of stub carbon beams. Each course of the latter extends from the outer wall toward the center of the furnace, and the stub beams of each course are progressively shorter from the lowermost upwardly. The hearth provides longer life without requiring proportionately as much carbon as a flat hearth of equivalent life.

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