Patent ID: 7331313
Filing Date: 2008-02-19
Classification: F22B

Abstract:
1. A continuous steam generator having a circulating atmospheric fluidized-bed firing system comprising: a fluidized-bed combustion chamber, a separator disposed externally to the fluidized-bed combustion chamber, the separator having an inlet in fluid communication with an upper portion of the fluidized-bed combustion chamber and an outlet in fluid communication with a lower portion of the fluidized-bed combustion chamber, the separator receiving a flue gas from the fluidized-bed combustion chamber, removing solids entrained in the flue gas, and returning the solids to the fluidized-bed combustion chamber; whereby heat produced by combustion is transferred from a fluidized-bed, comprising a mixture of gas and entrained solids, to substantially the entire heating surface and the enclosing walls.