Title: Wall construction of a shaft furnace

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: van Laar, Jacobus (Santpoort, NL)

Application Number: 503658
Filing Date: 1974-09-06
Publication_date: 1976-04-27
Assignee: Hoogovens Ijmuiden B.V. (Ijmuiden, NL)
Primary Class(es): 266/193 266/280
Other Classes:
US Patent Ref:

1014314	Jan, 1912	Marshall	266/32.
3652070	Mar, 1972	Sagara	266/32.
3682457	Aug, 1972	Hollingworth	266/25.

Other Refs:
Primary Examiner: Dost, Gerald A.
Assistant Examiner:
Attorney: Stevens, Davis, Miller & Mosher