in a grate-kiln pelletizing furnace
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United States of America Patent
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Feb 2, 2016
Grant Date -
May 12, 2011
app pub date -
Mar 26, 2010
filing date -
Nov 6, 2009
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Abstract
A grate-kiln pelletizing furnace includes a grate that conveys pelletized material to a rotary kiln, a cooler that cools pelletized material from the rotary kiln, and a gas flow apparatus that directs a stream of gas from the cooler to the rotary kiln to provide preheated process air for pelletized material in the rotary kiln. The gas flow apparatus also directs a stream of gas from the grate to the rotary kiln to vitiate the preheated process air.
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