Method for treating molten metals and/or slags in metallurgical baths and metallurgical plant for treating molten metals
AssigneeSMS group GmbH
InventorsHans-Jürgen ODENTHAL, Andreas KEMMINGER, Stephan GEIMER
Life of this patent
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Abstract
A method for treating molten metals (4) and/or slags in metallurgical baths comprises the introduction of a process gas into a melt bath. The process gas is accelerated to supersonic speed and is introduced below the melt bath surface (5) by means of at least one supersonic nozzle (6) with supersonic speed into the liquid phase of the molten metal (4) and/or into the slag and/or into the region of a phase boundary between molten metal and slag. The disclosure further relates to a metallurgical plant for treating molten metals.
Claims8
-12. (canceled)
A method for treating molten metals (4) and/or slags in metallurgical baths,
- comprising:
- introducing a process gas into a melt bath, including accelerating the process gas to supersonic speed and
- introducing the process gas below a melt bath surface (5) by at least one supersonic nozzle (6) with supersonic speed into a liquid phase of a molten metal (4) and/or into a slag (13) and/or into a region of a phase boundary (14) between molten metal and slag (13),
- wherein the process gas is introduced at several locations of the melt bath using a plurality of supersonic nozzles (6), and
- wherein at least one of the plurality of supersonic nozzles (6) is operated outside its gas-dynamic design point.
Dependencies are inferred from the claim text.