Page 1 of 4 Application Report No. 1 Utilizing Hollow Screw Processors for Cooling Ash in Fluidized Bed Combustion Technologies. Fluidized bed Combustion (FBC) is a method of burning fuel, which is continually fed into a bed of inert material such as sand, silica, alumina or ash and/ or limestone. These materials are kept suspended through the action of the primary air distributor below the combustion floor. The furnace chamber floor is

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