Equipment and method for preheating a continuously moving steel strip
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United States of America Patent
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Apr 25, 2017
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N/A
app pub date -
Mar 25, 2010
filing date -
Dec 15, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Equipment and a method for preheating a continuously moving steel strip, in particular before feeding the same into a continuous annealing or hot-dip galvanizing furnace, involves the continuous movement of the steel strip in a preheating chamber including a preheating circuit having at least one preheating tube, the inner surface of which is in contact with externally-recovered burnt gases (e.g. from the furnace). A portion of the outer surface of the preheating tube is disposed directly opposite a surface of the strip in order to provide a first preheating mode by irradiating heat onto the strip and the walls of the chamber, and a second preheating mode, mainly by convection, of a gas constituting a controlled atmosphere in the preheating chamber.
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International Classification(s)
- B05C:APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- F27B:FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPE....
- F27D:DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, ....
- F23C:METHODS OR APPARATUS FOR COMBUSTION USING FLUENT F....
- C21D:MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS....
- F23D:BURNERS
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