Flat flame vault burner with low pollutant emissions

摘要

Flat flame vault burner (10) suitable for installation in a vault (21), which delimits the combustion chamber (20) of a steel heat treatment furnace, the burner (10) comprising a hollow metal cylindrical body main (12), an individual duct (13) for transporting concentric fuel gas to the main body (12), a central inner nozzle (14) for injecting a combustible gas, and an individual air transport duct (30) connected to the body main metal hollow cylindrical (12), characterized in that it comprises: - at least two outer nozzles (17) outside said main body (12) for injecting fuel into the combustion chamber (20), - a first device division (15) in the form of a division valve to regulate the flow of central fuel gas; - a gas distribution system (16) consisting of a series of pipes (16 '), intended to feed said at least two outer nozzles (17), - a second dividing device (18) indicated as a second valve of division to regulate the flow of gas in said at least two outer nozzles (17).