The causes resulting in slagging for circulating fluidized bed(CFB) boilers have been presented.It is believed that the causes are mainly as follows: the local or entire temperature of bed material exceeds the fussion point of ash or the sintering temperature;the fluidized condition in furnace isn't good

etc..For these

some measures as improving the slagging property of fuel coal

strictly control the operational parameters

and shortening the time of banking fire as possible

etc.have been put forward

for avoiding slagging in CFB boilers.