Fluidized bed combustor having integral solids separator

Details Fluidized bed combustor having integral solids separator Fluidized bed combustor having integral solids separator

F - Mech Eng,Light,Heat,Weapons

23

G

110/15

F23G 5/00 (2006.01) B01J 8/00 (2006.01) B01J 8/38 (2006.01) F23C 10/10 (2006.01) F23J 3/00 (2006.01)

Patent

CA 1264606

ABSTRACT OF THE DISCLOSURE A circulating fluidized bed furnace 10 is disclosed wherein a non-cyclonic particulate separator 18 is integrally disposed in the flue gas flow path between the furnace gas outlet 14 and the flue gas duct 16. The separator 18 comprises an arcuate duct 20 having a curvilinear inner wall 24, the portion thereof which is disposed across the inlet to the flue gas duct 16 having a plurality of openings 28 therein which provide a flow area through which a portion of the flue gas pass into the flue gas duct 16. Gas/solids separation is accomplished as the flue gas turns sharply from its arcuate path to pass through the openings 28 in the inner wall 24. The momentum of the particulate solids and the centrifugal forces acting thereon prevent the solids from sharply turning and cause the solids to continue on their arcuate flow path through the duct 20 in the remaining flue gas to a solids collection means 40 opening to the solids outlet 26 of the arcuate duct 20.

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