System for inerting a casting vessel used for transporting molten metal

US5286008A · kind A · utility

Assignee

• Klockner Stahl GmbH · DE

Inventors

• Hans De Haas · Papenburg, DE
• Klaus Ulrich · Heiligenhaus, DE
• Klaus Grutzmacher · Bremen, DE
• Erhard Krause · Ritterhude, DE
• Horstmar Mohnkern · Ritterhude, DE
• Manfred Lowenstein · Bremerhaven, DE
• Manfred Voss · Bremen, DE
• Joachim Witt · Ritterhude, DE
• Uwe Hammer · Hemmingen, DE

Key dates

• Filing date: Oct 29, 1992
• Grant date: Feb 15, 1994
• Expiry date: Oct 29, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21C1/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A system for inerting a casting vessel, such as a traversable ladle or torpedo vessel, used for transporting molten metal, the vessel being positioned below the molten metal outlet opening at a transfer station, and the vessel cavity being flushed with an inert gas both prior to the molten metal inletting and during the inflow of the molten metal in such a manner as to avoid contact between the molten metal surface and the vessel and the atomospheric oxygen. A blowpipe is arranged in the vicinity of the molten metal outlet opening but does not intersect the molten metal stream, is located outside the free space profile of the vessel at least during the approach and return of the vessel, and terminates a distance from the vessel inlet opening and produces at its terminal end an inert gas stream which enters the cavity of the vessel adjacent the molten metal stream at an acute angle.