In order to obtain the aim of Nox emission value below 100 mg/Nm3 for 330 MW level ac?tive service coal-fired unit in Ningxia area and improve the environment
Qingtongxia Aluminium In?dustry Group Power Generation Co.
Ltd. makes the technic improvement for burner of the No.1 boiler.The result shows that after improvement under 330 MW load the Nox average emission value of theboiler is 240 mg/Nm3
reduces 45% than that of before the improvement. The efficiency of the boilerreaches 93.39%(0.01% above the design value)the carbon content in fly ash is 2.98%(0.02% belowthe design value)
desuperheating water quantities of the overheater and reheater are both below thedesign value
and effectively solves the coking and overtemperature phenomena appearing.