BOILER PALNT IN THERMAL POWER STATION FOR UNBURNED MATTER ASH RE-BURNING

摘要

PURPOSE: A boiler device in a thermal power station for the re-burning of unburned fly ash is provided to prevent environmental contamination by mixing unburned fly ash with high quality coal and re-burning the fly ash. CONSTITUTION: A boiler device in a thermal power station for the re-burning of unburned fly ash comprises a boiler (B1), an unburned fly ash silo (60), a high quality coal supply part (20), and a mixing part (30). The unburned fly ash silo stores unburned fly ash having 6% or more unburned carbon powder. The high quality coal supply part supplies high quality coal for producing unburned fly ash in normal combustion conditions. The mixing part mixes the high quality coal with the unburned fly ash and supplies the mixture to the boiler.