For four 830 t/h slag-tap coal-burning boilers in Huaneng Beijing Thermal Power Plant

measures

such as burning coal with low sulfer content and high calorific value

as well as adopting low NO x burners

air-gradation combustion

and fly ash reburning facility etc.

had been taken to control emission of NO x

SO x

ash and slag

obtaining obvious effectiveness. At present

the emission concentration of smoke

NO x

SO x is 18.51 mg/m 3

394 mg/m 3

and 430 mg/m 3 respectively

being far below national standard and standard specified by Beijing Municipality.