What is the burnt-out wind?

Burnout air is hot air sent separately from the upper part of the main burner to reduce the generation of nitrogen oxides in the furnace, so that combustible substances can be further burned out in the later stage.

The function of burn-out air is that there are two burn-out air chambers at the top of the boiler, and the nozzles of the burn-out air chambers are tangent to 18 degrees, which can weaken the airflow rotation at the upper part of the furnace, reduce the flue gas temperature deviation at the outlet of the furnace, and swing up and down by +30-5 degrees, thus changing the position of the combustion center area and adjusting the heat absorption of each radiant heating surface in the furnace, thus adjusting the reheat steam temperature.