Continuous feeding system to a smelting furnace of pre-heated metal material, in continuous, potentiated and combined form
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United States of America Patent
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Jun 13, 2017
Grant Date -
May 2, 2013
app pub date -
Jun 23, 2011
filing date -
Jul 14, 2010
priority date (Note) -
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Abstract
A process for heating a metal feedstock (31) fed in continuous to a smelting furnace (30) through a second horizontal heating section (34) through which hot discharge fumes collected from said furnace (30) pass, said fumes exerting a heating phase of said feedstock (31), characterized in that, immediately before entering said second heating section (34), the feedstock (31) is subjected to a preheating phase by heating means other than the discharge fumes collected from the smelting furnace (30). In a plant for the embodiment of said process, said different heating means are envisaged inside a first preheating section (33), which is operatively connected with said second heating section (34) by means of an intermediate fume evacuation section (35), the fumes coming from said sections (33) and (34) being conveyed to said section. Said sections (33, 34) preferably have a tunnel configuration.
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