Coiler furnace unit

Details Coiler furnace unit Coiler furnace unit

C - Chemistry, Metallurgy

21

D

38/21

C21D 9/68 (2006.01) B21D 11/06 (2006.01)

Patent

CA 1226134

ABSTRACT COILER-FURNACE UNIT For a heating of a golf of strip with hot gas without an increased formation of scale, a coiler-furnace unit comprising a heat-insulating housing, a coiler core disposed in said housing, and a heating tube which is adapted to surround the coiler core 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 slow passage of the heat-insulating housing in at least one axial position of the heating tube.

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