EXTERNAL PREHEATING OF FRESH AIR IN SOLID MATERIAL FURNACES
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United States of America Patent
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Issued Date -
Jul 7, 2011
app pub date -
Aug 31, 2009
filing date -
Sep 19, 2008
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for utilizing the heat in the lower temperature range of up to 1000° C., preferably up to 500° C., for preheating fresh air which is added to a solid material furnace, preferably designed as a grate furnace with sub-stoichiometric combustion and supply of fresh air in several stages, or to a circulating fluidized-bed furnace.
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