METHOD FOR IMPROVING THE COMBUSTION EFFICIENCY OF A BURNER OF A HOT BLAST STOVE, AND SUCH A HOT BLAST STOVE COMPRISING A GAS BURNER

摘要

Hot blast stove comprising a gas burner, said burner having a burner crown at which gas and air ducts have discharge openings, provided with a central gas duct and side air ducts for primary combustion air, which side air ducts have their discharge openings at opposite sides of the discharge opening of said gas duct, and provided with at least one auxiliary air duct that has one or more outlets for secondary combustion air, wherein the at least one auxiliary air duct is provided above the burner crown.