OXY-FUEL BURNER FOR REDUCING THE LEVEL OF OPERATING NOISE

摘要

A metallurgical burner of the type having a nozzle end for producing a flame by combustion of fuel and an oxidizing fluid. The burner is characterized in that the nozzle contains a plurality of mixing cups surrounding and projecting beyond a plurality of pairs of fuel and oxidizing fluid discharge ports. The mixing cups are sized so that combustion takes place inside or at the mouth of each cup thereby reducing the operating noise level of the burner. Further features of the burner include fluid cooling and quick change capability for nozzle end replacement.