B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 35/06 (2006.01) B01J 19/02 (2006.01) C04B 35/58 (2006.01)
Patent
CA 2673272
The invention relates to a method of and apparatus for providing heat to a molten metal flowing through metal-conveying apparatus. The apparatus includes a molten metal-conveying channel, an enclosure for receiving and circulating combustion gases while preventing entry of the gases into said channel, a heat-conductive body of material separating at least part of the channel from the enclosure; and a combustion device for generating combustion gases and delivering the gases to the enclosure. Heat from the combustion gases is used to heat molten metal held in the channel, while preventing contact between the combustion gases and the molten metal. The body of material may be a trough used to form the channel, a tube for conveying the molten metal, or a tube acting as the enclosure, or the like.
L'invention porte sur une méthode et un appareil d'apport de chaleur à un métal fondu s'écoulant dans un appareil de convoyage. L'appareil comporte: un canal de convoyage du métal fondu; une enceinte recevant et recirculant des gaz de combustion et en empêchant l'entrée dans ledit canal; un corps de matériau thermoconducteur séparant au moins une partie du canal de l'enceinte; et un dispositif de combustion produisant les gaz de combustion et en alimentant l'enceinte. La chaleur des gaz de combustion est utilisée pour chauffer le métal fondu du canal tout en empêchant le contact entre les gaz de combustion et le métal fondu. Le corps de matériau thermoconducteur peut être une gouttière servant à former le canal, le tube de convoyage du métal fondu, ou un tube servant d'enceinte, etc.
Bruski Richard Scott
Hymas Jason D.
Reeves Eric W.
Kirby Eades Gale Baker
Novelis Inc.
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