BURNER FOR CARRY OUT NITRIC-OXIDES IN INDUSTRIAL BOILER COMBUSTION GASES

摘要

BACKGROUND OF THE INVENTION The present invention relates to a burner for reducing the nitrogen oxide content of combustion products from coal dust-fired industrial boilers, which has a central channel (1) for transporting a single fuel, cylindrical, at one end to the combustion chamber ), wherein an annular channel (2) for transporting secondary air is formed around the central channel (1). It is an object of the present invention to provide a diffuser (3) defined by a single cone surface at the end of the central channel (1) communicating with the combustion chamber (15) with a larger base surface (16) the apex of the cone base of the diffuser (3) is equal to the apex of a truncated cone (5) defining the aperture (4) in the wall (7) of the combustion chamber (15).