Combustion assembly for a furnace and method of use
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsLouis Philippe, Eric Duchateau, Dominique Jouvaud, Robert Plessier, Claude Pivard, Etienne Lepoutre
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Abstract
Combustion assembly adapted to be placed in a wall of a furnace including an axis having at least one pair of burners with axes, one oxidant lance arranged between the burners of the pair and having a lance axis and a source of oxidant connected to the burners and to the lance.
Claims7
A method of melting a charge comprising feeding said charge into a furnace comprising a combustion assembly adapted to be placed in a wall of a furnace comprising an axis comprising
- at least one pair of burners having axes,
- one oxidant lance arranged the lance axis being located substantially halfway between the burners of the pair and having a lance axis,
- a source of oxidant connected to the burners and to the lance, wherein the oxidant of the source feeding the burners and the lance comprises at least 88% of oxygen, wherein oxidant flux emitted by the lance at an impulse which is between 0.5 and 3 times the impulse of the oxidant and fuel flux emitted by a burner of the assembly.
A method of melting a charge comprising feeding said charge into a furnace comprising a combustion assembly adapted to be placed in a wall of a furnace comprising an axis comprising
- at least one pair of burners having axes,
- one oxidant lance arranged between the burners of the pair and having
- a lance axis,
- a source of oxidant connected to the burners and to the lance, wherein the oxidant of the source feeding the burners and the lance comprises at least 88% of oxygen, and the fuel and the oxidant are fed to the burners at the same flow rate, wherein oxidant flux emitted by the lance at an impulse which is between 0.5 and 3 times the impulse of the oxidant and fuel flux emitted by a burner of the assembly.
A method of melting a charge comprising feeding said charge into a furnace comprising
- a combustion assembly adapted to be placed in a wall of a furnace comprising an axis comprising
- at least one pair of burners having axes,
- one oxidant lance arranged between the burners of the pair and having a lance axis,
- a source of oxidant connected to the burners and to the lance, wherein the oxidant of the source feeding the burners and the lance comprises at least 88% of oxygen, said lance axis and said burner axes make an angle not exceeding 10°, wherein oxidant flux emitted by the lance at an impulse which is between 0.5 and 3 times the impulse of the oxidant and fuel flux emitted by a burner of the assembly.
Dependencies are inferred from the claim text.