Air flow rate control proportionality of primary air with secondary air

as well as material-returning air flow control are important parameters for combustion-optimizing control of circulating fluid bed （CFB） boilers. The critical fluidifying air flow rate control of large-scale CFB boilers has been discussed

pointing clearly out the main directions for operation-optimizing regulation of （largescale） CFB boilers’ combustion

so as to provide guidance for operation optimization of large-scale CFB boilers.