C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 9/56 (2006.01) C21D 1/34 (2006.01) F27D 13/00 (2006.01)
Patent
CA 2685404
The invention pertains to the heating of a metal strip, and relates to equipment for heating a metal strip that comprises a pre-heating housing (2) provided with a device (11) for projecting hot gases towards the strip (1), a heating housing (4)with regenerative burners (16, 16'), a duct (31) for discharging the gases from the heating housing, a three-way adjustable valve (32) and an adjustment device including a sensor (34) for detecting the setpoint temperature of the metal strip and a member (36) for adjusting the three-way valve (32) so that it can adjust the amount of hot gases fed to the projection device (11). The invention can be used in equipment for heating narrow strips before annealing the same.
L'invention concerne le chauffage d'une bande métallique. Elle se rapporte à une installation de chauffage d'une bande métallique qui comprend une enceinte (2) de pré-chauffage munie d'un dispositif (11) de projection de gaz chauds vers la bande (1), une enceinte (4) de chauffage à brûleurs régénératifs (16, 16'), une canalisation (31) d'évacuation des gaz de l'enceinte de chauffage, une soupape réglable à trois voies (32), et un dispositif de régulation comprenant un capteur (34) de température de consigne de la bande métallique et un organe (36) de réglage de la soupape à trois voies (32), afin que celle-ci régule la quantité de gaz chauds transmise au dispositif (11) de projection. Application aux installations de chauffage de feuil- lards avant leur recuit.
Buchet Philippe
Lhomme Pierre-Jacques
Richard Nicolas
Bcf Llp
Gdf Suez
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