METHOD OF REHEATING IN A FURNACE USING A FUEL OF LOW CALORIFIC POWER, AND FURNACE USING THIS METHOD
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United States of America Patent
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Issued Date -
Feb 25, 2010
app pub date -
Sep 11, 2007
filing date -
Sep 13, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Method of controlling a reheat furnace (1) for reheating iron and steel products, for example slabs, blooms, ingots or billets, making it possible for the product to be reheated to be brought to the desired temperature for rolling, the furnace being equipped with a heat recuperator (A). The furnace is equipped mostly with regenerative-type burners which include regenerators and operate in on/off mode; the burners operate in time modulation mode; a portion of the combustion gases passes through the regenerators of the regenerative burners so as to preheat one of the fluids (either the fuel or the oxidizer) participating in the combustion; and the remainder of the combustion gases passes through the heat recuperator (A) in order to preheat the fluid (either the oxidizer or the fuel) other than that preheated in the regenerators.
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