Metallurgical shaft furnace

Details Metallurgical shaft furnace Metallurgical shaft furnace

C - Chemistry, Metallurgy

21

B

39/55

C21B 7/10 (2006.01) C21B 7/02 (2006.01) F27B 1/12 (2006.01)

Patent

CA 1076351

Abstract A metallurgical shaft furnace for producing metal from a charge which enhances the preheating capacity of upwardly flowing gases in an upper preheating portion of the furnace, the upper portion being formed form concentric section which increase in diameter from the uppermost section to the lowermost section of the preheating portion of the furnace. Troughs are formed where adjacent sections meet to form cooling rings around the upper portion, the rings projecting inwardly from the fur- nace wall. The lower portion comprises a melting portion having tuyeres, a hearth and tap means. Vertical cooling conduits may be provided in the lower section with conduits adjacent each tuyere terminating above the tuyere to prevent damage to the conduits. -1-

279517

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