Directing against the problem of somewhat lower steam temperature existing on a 2008t/h boiler of one power plant

the arrangement of burners in the boiler has been adjusted

increasing the heating surface area of rear panel reheater

carrying out thermal calculation and combustion adjustment test for the said boiler. The results of calculation and test show that the following conditions are most helpful to enhance the main steam temperature: （1） contamination factor in the furnace to be maintained at 0.35～0.45; （2） coefficient of excess air to be about 1.3; （3） the upswing angle of the burner to be 8°～16°; （4） burnoff air in upper level to be closed

and oxygen content to be maintained at low level（3.0%）. By means of adjusting swing angle of the burners and the spray type desuperheater

the said problems of main steam and reheated steam have been solved

enhancing the safety and economic behavior in operation of the unit.