Integrated fluidized bed ash cooler

Details Integrated fluidized bed ash cooler Integrated fluidized bed ash cooler

2006-04-19

2008-12-16

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Miscellaneous

C432S080000, C422S139000

Reexamination Certificate

active

07464669

ABSTRACT:
An integrated fluidized bed ash cooler for a fluidized bed boiler, particularly a circulating fluidized bed (CFB) boiler, employs at least two fluidized bed sections positioned in series along a solids flow path. Each section contains fluidizing means, the first section along the solids path being separated from a following section with a threshold. The first section contains means for measuring a bed temperature in the vicinity of the fluidizing means and at a higher elevation within the fluidized bed. Means are provided for removing oversized bed material from the first section to facilitate the removal of ash while minimizing the possibility of ash plugging during operation.

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