F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/39
F22B 21/24 (2006.01) C10G 9/20 (2006.01) F23J 1/00 (2006.01)
Patent
CA 1091518
Abstract of the Disclosure A process heater which is fired by an ash containing fuel, generally coal, has a housing which includes a front radiant section and a rear convection section. The radiant section is provided with vertically extending process tubes against the walls thereof, arranged in a single row, and horizontal process tubes arranged in a single row across the roof. The horizontal and vertical tubes contain longitudinal fins over the length thereof, with adjacent fins being in contact with each other to provide a fin tube wall which prevents a build-up of ash behind the tubes. The bottom of the radiant section is downwardly and inwardly sloped and terminates in an ash collecting hopper. The process tubes extend along the downwardly and inwardly sloped portion to provide cooling which prevents ash melting whereby ash enters the hopper in solid form for removal. The vertical and horizontal process tubes are interconnected to provide for at least two passes of process fluid through the radiant section.
322585
O'sullivan Thomas F.
Pollock William H.
Lummus Company (the)
Richard Jean
LandOfFree
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