The burning characters of pulverized coal and air flow under oxygen-enriched atmosphere in a horizontal furnace have been tested and studied

at the same time

the numerical simulation of combustion being carried out.The results show that the combustion of pulverized coal has more abundant oxygen in oxygen-enriched atmosphere

enhancing the burning rate of pulverized coal

raising the level of temperature field in furnace

making the fuel to be more completely burned;the temperature level at front end of the torch has been remarkably heightened

shortening the ignition distance of pulverized coal and air flow

quikening the burning rate

this is helpful to realize direct oxygen-enriched ignition;the CO content in flue gas decreases

the NOx content being firstly increased

and then being decreased

the SO2 content having tendency to increase.