Loading patent…
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes George Claude
InventorsEric Duchateau, Louis Philippe, Dominique Jouvaud, Robert Plessier, Claude Pivard, Etienne Lepoutre, Jean-Thierry Duboudin
Estimating the term…
Method of heating the charge of a glass furnace in which at least one burner is placed in a wall of a furnace so as to heat the bath of glass, characterized in that at least one assembly consisting of a first and a second burner which are fed with fuel gas and with oxidizer gas containing at least 50 vol. % of oxygen is arranged in one of the walls of the furnace at a distance (D) at least equal to approximately 3 meters from each other, in that an oxygen lance is arranged between the first and second burners, the first burner, the second burner and the lance forming a combustion assembly and in that from approximately 30 vol. % to approximately 80 vol. % of oxidizer gas is sent into the lance and from approximately 20 vol. % to approximately 70 vol. % of oxidizer gas is sent to the first and second burners in substantially equal proportions, so as to create a retarded combustion of the fuel and oxidizer gases and to extend substantially the length of the flame compared with the length of the flame obtained with no oxidizer gas injected into the lance.
Method of heating a charge of a glass furnace comprising at least one burner placed in a wall of a furnace so as to heat a bath of glass, comprising the steps of (i) feeding a fuel gas and an oxidizer gas comprising at least 50% of oxygen to a first and a second burner of a combustion assembly arranged in one of the walls of the furnace, said first and second burners being at a distance (D) at least equal to approximately 3 meters from each other, and (ii) feeding oxidizer gas to an oxygen lance arranged between the first and second burners, the first burner, the second burner and the lance forming a combustion assembly, wherein from approximately 30 vol. % to approximately 80 vol. % of oxidizer gas is sent into the lance and from approximately 20 vol. % to approximately 70 vol. % of oxidizer gas is sent to the first and second burners in substantially equal proportions, so as to create a retarded combustion of the fuel and oxidizer gases and to extend substantially the length of a flame compared with the length of the flame obtained with no oxidizer gas injected into the lance.
Dependencies are inferred from the claim text.