Ceramic burner for a hot-blast stove of a blast furnace
AssigneeHoogovens Groep B.V.
InventorsJacobus Van Laar, August H. Hendriks, Rudolf Boonacker, Johannes C. A. van den Bemt, Jean-Pierre A. Westerveld
Life of this patent
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Abstract
A ceramic burner for a hot blast stove has a central gas duct that opens into the central zone of a burner crown and side air ducts on both sides of the gas duct which also open into the central zone. To improve combustion characteristics, there is a central air duct in the gas duct opening out within it. Air is supplied to the central air duct in an upward flow which exits in two opposing directions through side openings.
Claims8
A ceramic gas burner for a hot blast stove having a burner crown and gas and air ducts having respective discharge openings at said burner crown, said gas and air ducts comprising
- a central gas duct;
- at least two side air ducts which have their said discharge openings at respectively opposite sides of said discharge opening of said central gas duct;
- and
- at least one central air duct having at least one said discharge opening within said central gas duct, said side air ducts each having a plurality of said discharge openings arranged in respective rows on said opposite sides of said central gas duct, said central air duct having a plurality of said discharge openings which are laterally directed and are arranged at locations which, in the longitudinal directions of said rows of said discharge openings of said side air ducts, are staggered relative to the locations of said discharge openings of said side air ducts.
Dependencies are inferred from the claim text.