EP 0259510 B1 19910123 - ARCHIMEDEAN SCREW FOR METALLURGICAL FURNACES, IN PARTICULAR FOR HEARTH FURNACES
Title (en)
ARCHIMEDEAN SCREW FOR METALLURGICAL FURNACES, IN PARTICULAR FOR HEARTH FURNACES
Publication
Application
Priority
US 71931085 A 19850403
Abstract (en)
[origin: US4636127A] A countercurrent fluid cooled conveying screw is disclosed. Suitable for furnace applications, the screw includes an outer shaft spatially circumscribing an inner tube. A plurality of hollow, fluid cooled flights are affixed to the outer shaft and are in fluid flow communication with coolant coursing through the screw. The coolant is first directed through the flights and then back through the outer shaft before exiting through the inner tube.
IPC 1-7
IPC 8 full level
C21B 13/10 (2006.01); F27B 9/16 (2006.01); F27B 9/38 (2006.01); F27D 3/08 (2006.01)
CPC (source: EP US)
C21B 13/105 (2013.01 - EP US); F27B 9/16 (2013.01 - EP US); F27B 9/38 (2013.01 - EP US); F27D 3/08 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
DE 3610490 A1 19861016; DE 3610490 C2 19880331; BR 8601447 A 19861209; EP 0259510 A1 19880316; EP 0259510 B1 19910123; IN 165587 B 19891125; US 4636127 A 19870113
DOCDB simple family (application)
DE 3610490 A 19860327; BR 8601447 A 19860401; EP 86112533 A 19860910; IN 702CA1986 A 19860923; US 71931085 A 19850403