Study On The Residue Characteristic Of CFB Boiler

The residue characteristics of the circulation fluidization bed (CFB) boiler are studied in this paper. The element compositions of residue included SiO₂, Al₂O₃, Fe₂O₃, CaO and MgO between CFB boiler un-put desulfurizer and the pulverized boiler are determined in experiments and the fly ash's influence to the special resistivity is discussed. To the residue of CFB boiler put desulfurizer, a mathematics model using the element composition is established and the compositions of fly ash are calculated theoretically. The distribution of carbon and the existent form of Fe are analyzed in the paper. And synchronously we draw the conclusion that the special resistivity of fly ash in CFB boiler is lower than the resistivity in the pulverized boiler.