D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
9/37
D21C 7/16 (2006.01) B01J 4/00 (2006.01) D21C 11/12 (2006.01) F27D 3/14 (2006.01) F27D 9/00 (2006.01)
Patent
CA 1235863
STEAM COOLED SPOUT ABSTRACT OF DISCLOSURE A substantially energy saving steam cooled spout, offering reduced explosion hazards, the invention includes a heat resistant heat exchanging metallic wall having one surface to convey a flow of molten smelt. A second heat resistant wall joins the heat exchanging metallic wall to define with the opposite surface thereof, a passage for a flow of steam, against the heat exchanging metallic wall. The heat exchanging metallic wall thereby provides a heat exchange from the flow of molten smelt to the flow of steam. Baffles are mounted in the passage to define a tortuous path therein in order to increase the path of the steam over the heat exchanging metallic wall, thereby in- creasing the temperature of the steam to bring the steam to a superheated condition. Means are provided for directing the steam in superheated condition into the flow of molten smelt. A method for transfering a molten smelt is also described wherein a flow of molten smelt is cooled by a flow of steam, which are separated by a heat exchanging metallic wall, whereby the flow of steam is heated and brought to a superheated condition while the flow of molten smelt and the heat exchanging metallic wall are cooled to reduce the heat stressing conditions of the heat exchanging wall and while the steam, in superheated condition, offers reduced explosion hazards when in contact with the molten smelt.
479074
Domtar Inc.
Gauvin Antoine H.
LandOfFree
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