Ceramic burner for combustion chamber for hot-blast stove

A burner, particularly for use in the combustion shaft of a hot-blast stove, said burner comprising:

• a central burner duct for the supply of a first combustion component;
• an outer annular duct, coaxial to said central burner duct, for the supply of a second combustion component;
• means connecting said central burner duct and said outer annular duct for combining first and second combustion components flowing therethrough to form a component mixture;
• a disk-shaped mixing element means, positioned centrally within said central burner duct at a position downstream in the direction of flow of said combustion components of said combining means, for retarding the flow of said component mixture in the downstream direction;
• said mixing element means occupying a portion only of the cross-sectional area of said central burner duct, such that a first portion of said component mixture flows past said mixing element means around the periphery thereof;
• and
• said mixing element means having extending therethrough, substantially in the direction of flow of said combustion components, a ring of separate passages such that a second portion of said component mixture flows through said separate passages and mixes with said first portion of said component mixture.