A METHOD OF OPERATING A BURNER, AND A BURNER FOR LIQUID AND/OR GASEOUS FUELS

摘要

The invention relates to a method of operating a burner, wherein the fuel (B) and optionally primary air (PL) are supplied to a mixing zone (6). The fuel-primary-air mixture (B, PL) reacts in a combustion zone (14) downstream from the mixing zone (6). Secondary air (SL) is mixed with the fuel-primary-air mixture (B, PL) in the combustion zone (14). A portion of flue gas (T12AB) of the hot flue gases (TAB) exiting from the combustion zone (14) is recycled to the mixing zone (6) in such a way that the secondary air (SL) and the portion of flue gas (T12AB) intersect each other in a transition area (16) in countercurrent. The invention also relates to a burner operated in a corresponding manner.