L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

American Air Liquide, Inc.

Jean-Yves Iatrides

Louis C Philippe

Serge Laurenceau

Michel Verlhac

Harley A Borders

Eric L Duchateau

Thierry Duboudin

William Von Drasek

The burner comprises a tap-hole block (1), a burner body (C) substantially comprised of a tubular element (2), at least one injection blowpipe (3) extending through the burner body and into the cavity (P) of the tap-hole block (1), and unlockable quick mounting means (22, 20; 16, 23; 26, 28) for mounting the injection blowpipe (3) to the tubular element (2) and the tubular element (2) to the tape-hole block (1). Application particularly to the oxicombustion in glass furnaces

Burner and utilization of such burner in glass furnace

The burner comprises a tap-hole block (1), a burner body (C) substantially comprised of a tubular element (2), at least one injection blowpipe (3) extending through the burner body and into the cavity (P) of the tap-hole block (1), and unlockable quick mounting means (22, 20, 16, 23, 26, 28) for mounting the injection blowpipe (3) to the tubular elements (2) and the tubular element (2) to the tap-hole block (1). Application particularly to the oxicombustion in glass furnaces.

Burner and utilization of such a burner in a glass furnace

An oxy-fuel burner according to the present invention includes an outer oxidant tube, an intermediate fuel tube and an inner oxidant tube which are coaxially arranged with the fuel tube disposed between the inner and outer oxidant tubes. Characteristics of the flame produced by the burner may be controlled by varying the relative flow rates of the inner and outer oxidant flows. An increase in the percentage of the total oxidant which is provided to the inner oxidant tube causes the length and luminosity of the flame to decrease and the flame momentum to increase. According to the present invention, the characteristics of a burner flame can be tailored to a particular application without requiring mechanical modification of the burner.

Oxy-fuel burner having coaxial fuel and oxidant outlets

An oxyburner (1) is associated with an opening (3) comprising a through passage (2) comprising a substantially cylindrical inlet region (5) receiving the downstream end of the oxyburner (1) and a substantially cylindrical outlet region (4) of a diameter D.sub.s and a length L.sub.s, the ratio D.sub.s /D.sub.e being comprised between 1.5 and 2.5 and the ratio L.sub.s /(D.sub.s -D.sub.e) comprised between 2 and 7. The speed of ejection of the oxygenated combustible gas is greater than 5 meters/second and the speed of ejection of the combustible gas is greater than the speed of the combustion-supporting gas.

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Saint Maur des Fosses, France

Jean-Yves Iatrides