Fluidized bed boiler and a grate element for the same
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United States of America Patent
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Mar 27, 2012
Grant Date -
Oct 25, 2007
app pub date -
Apr 19, 2007
filing date -
Apr 20, 2006
priority date (Note) -
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Abstract
A fluidized bed boiler comprises a furnace whose lower part is equipped with a grate comprising means for supplying fluidizing air into the furnace. The furnace also comprises at least one heat transfer surface extending across the furnace and comprising elongated heat transfer tubes on top of each other. The heat transfer surface is supported on the grate from underneath, substantially over its whole length, in the section extending across the furnace.
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