Compact footprint CFB with mechanical dust collector
AssigneeThe Babcock & Wilcox Company
InventorsMikhail Maryamchik, Felix Belin, David J. Walker, Donald L. Wietzke
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Abstract
A circulating fluidized bed (CFB) unit utilizing a mechanical dust collector located in a vertical flue above at least one heat exchange surface, and at least partially underneath the floor of a non-vertical flue, includes a plurality of individual collection elements each having a downward bottom outlet for a flow of cleaned gas conveyed through the collection elements.
Claims18
A circulating fluidized bed (CFB) apparatus, comprising:
- a reaction chamber;
- a non-vertical flue having a floor, said flue connected to an outlet of the reaction chamber, and a vertical flue connected to an outlet of the non-vertical flue, for conveying a flow of flue gas and entrained solids particles from the reaction chamber across at least one heat exchange surface contained within the vertical flue;
- and
- a mechanical dust collector (MDC) having a hopper, said MDC including a plurality of individual collection elements for collecting the entrained solids particles from the flow of flue gas, each collection element having a downward bottom outlet opening for discharging a flow of cleaned flue gas, and wherein said MDC is located in the vertical flue above the at least one heat exchange surface and at least partially underneath the floor of the non-vertical flue.
A mechanical dust collector (MDC), comprising a plurality of individual collection elements for separating entrained solids particles from a flow of flue gas, the MDC located in a single, straight, vertical flue above and upstream of at least one heat exchange surface, each individual collection element having means for separating the solids particles from the flow of flue gas and means for conveying the flow of flue gas from an upper portion of the collection element downwardly therethrough to a bottom outlet opening for discharging cleaned flue gas.
Dependencies are inferred from the claim text.