EP 0166712 B1 19870819 - COILER FURNACE
Title (en)
COILER FURNACE
Publication
Application
Priority
AT 197184 A 19840618
Abstract (en)
[origin: US4611988A] For a heating of a coil of strip with hot gas without an increased formation of scale, a coiler-furnace unit comprising a heat-insulating housing, a coiler mandrel disposed in said housing, and a heating tube which is adapted to surround the coiler mandrel and to heat the latter, is characterized in that the heating tube consists of a radiant inner tube, which is enclosed by a shell, at least one hot gas passage is defined between the inner tube and the shell, the heat-insulating housing is double-walled to define at least one flow passage, and the outlet opening of the hot gas passage of the heating tube communicates with an inlet opening of the flow passage of the heat-insulating housing in at least one axial position of the heating tube.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C21D 9/68 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0166712 A1 19860102; EP 0166712 B1 19870819; AT 379617 B 19860210; AT A197184 A 19850615; CA 1226134 A 19870901; DD 232932 A5 19860212; DE 3560488 D1 19870924; JP S6112833 A 19860121; SU 1360590 A3 19871215; US 4611988 A 19860916
DOCDB simple family (application)
EP 85890102 A 19850502; AT 197184 A 19840618; CA 483006 A 19850603; DD 27744785 A 19850617; DE 3560488 T 19850502; JP 13008685 A 19850617; SU 3903102 A 19850605; US 73943785 A 19850530