Wall construction of a shaft furnace

Details Wall construction of a shaft furnace Wall construction of a shaft furnace

1974-09-06

1976-04-27

Dost, Gerald A.

Metallurgical apparatus

Means for treating ores or for extracting metals

By means applying heat to work, e.g., furnace

266280, C21B 710

Patent

active

039530078

ABSTRACT:
A shaft furnace having a refractory-lined wall at least part of which is provided with liquid-cooled cooling plates which extend into the lining and are grouped in a plurality of horizontal planes. The cooling plates in each plane are in heattransfer contact with an associated ring extending around the furnace which consists of refractory material of a first kind having a heat conductivity coefficient (.lambda.) at 20.degree.C. of at least 25 kilocalories/hour.meter..degree.C. The interior face of the lining also is provided at least partly by refractory material of a second kind which has high resistance to wear and chemical attack and has a minimum reaction temperature (Tu) of at least 600.degree.C. and a heat conductivity coefficient (.lambda.) at 20.degree.C. of at least 8 kilocalories/hour.meter..degree.C.

REFERENCES:
patent: 1014314 (1912-01-01), Marshall
patent: 3652070 (1972-03-01), Sagara
patent: 3682457 (1972-08-01), Hollingworth

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