Michael D O'Hagan

US Patent:

41966767, Apr 8, 1980

Filed:

Jul 21, 1978

Appl. No.:

5/926914

Inventors:

William R. Brown - Dublin CA
Gary O. Goldbach - San Jose CA
Dale R. Moody - Half Moon Bay CA
Michael A. O'Hagan - Cupertino CA
Fernando M. Placer - Palo Alto CA

Assignee:

Combustion Power Company, Inc. - Menlo Park CA

International Classification:

F23D 1900

US Classification:

110245

Abstract:

A fluid bed combustion method and apparatus are disclosed utilizing an induced draft fan downstream of the exhaust port of the combustion chamber. Fluidizing air is given a velocity vector toward one side of the chamber for moving foreign objects to that side where the objects are removed and separated by air classification from bed particles which are returned to the fluid bed. Air classification is accomplished using a blower which is valved off during preheat operation to draw hot air from above the fluid bed down through the particle bed.