CFB impact type particle collection elements attached to cooled supports
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United States of America Patent
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Sep 24, 2002
Issued Date -
N/A
app pub date -
May 25, 2001
filing date -
May 25, 2001
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Apparatus for separating solids from flue gas in a circulating fluidized bed (CFB) boiler comprises plural vertical, impact type particle separators located within the CFB in a plurality of staggered rows. The impact type particle separators employ hung elements supported from fluid-cooled tubes which form a collecting channel, typically U-shaped, which separates particles from flue gases conveyed across the particle separators. By separating the support function from the collection shape required by functional performance considerations, the strength requirements of the material used to form the collection shape are reduced and the strength of the material from which the fluid-cooled support is made is much higher due to the lower operating temperature of the material comprising the fluid-cooled support, thereby permitting the use of lower cost materials.
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