F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
92/1
F26B 3/00 (2006.01) D21F 7/00 (2006.01) D21G 1/00 (2006.01)
Patent
CA 1319286
ABSTRACT OF DISCLOSURE APPLICATION OF SUPERHEATED STEAM Superheated steam is applied directly to the surface of a web of paper or the like to significantly increase at least the surface temperature of the web impinged by the superheated steam thereby to significantly heat the paper. The web, after steam treatment, is immediately passed into a nip. The steam applicator is maintained at a temperature above 100°C to insure that condensation problems are substantially avoided and most if not all the steam condensed in the web. An applicator for superheated steam comprises a heated chamber having a steam inlet and apertures through which steam is directed from the chamber toward a travelling web, the chamber is heated to a temperature to ensure that the steam leaving the chamber through the apertures has the desired degree of super heat, i.e. moisture to heat content to raise the temperature of the web without undue amount of condensation forming on the equipment.
597515
Mb Paper Limited
Rowley C.a.
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