Process and apparatus for at least temporarily simultaneously subjecting a molten metal to the action of a gas and fine-grain solid materials
AssigneesFuchs Systemtechnik GmbH, GFI Gesellschaft fur Industrieausrustung mbH
InventorsHubert Knapp, Peter Hoffmann
Life of this patent
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Abstract
In a process for at least temporarily simultaneously subjecting a molten metal (5) in a metallurgical vessel (3) to the action of a gas and fine-grain solid materials, with a water-cooled first lance (17) for supplying the gas, in accordance with the invention the solid materials are supplied in the form of a conveyor stream (27) by way of a second lance (19). The solid materials are supplied in such a way that, after leaving the outlet opening (25) of the second lance (19), they are deflected by the gas (29) issuing from the outlet opening (23) of the first lance (17) and are supplied with said gas to the molten metal (5).
Claims20
A process for subjecting molten metal in a metallurgical vessel having a first lance with a first outlet opening and a second lance with a second outlet opening, to the action of a gas and to fine-grain solid material, comprising the steps of:
- supplying the gas to said vessel from said first lance with a first velocity conveying said fine-grain solid material into said vessel by a fluid conveyor stream from said second lance with a second velocity lower than said first velocity, in such a way that said material after leaving said second outlet opening is deflected by the gas from said first outlet opening and supplied by said gas to the molten metal.
A metallurgical vessel comprising:
- a first lance having a first outlet opening for supplying gas into said vessel,
- a second lance having a second outlet opening for supplying fine-grain solid material into said vessel,
- said lances being arranged such that said outlet openings extend inclinedly at a predetermined angle relative to each other, the first outlet opening being located above the second outlet opening.
Dependencies are inferred from the claim text.