Device for submerging material into liquid metal by an electromagnetic stirrer

US8043403B2 · kind B2 · utility

Assignee

• ABB AB · SE

Inventors

• Bengt Rydholm · Västerås, SE
• Erik Svensson · Hagfors, SE
• Alf Lundström
• Helmut Hackl · Munich, DE
• Olof Sjödén · Nyköping, SE
• Jan-Erik Eriksson · Visby, SE
• Tord Kroon · Visby, SE
• Tord Lindblad · Hagfors, SE

Key dates

• Filing date: Oct 9, 2008
• Grant date: Oct 25, 2011
• Expiry date: Dec 1, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A furnace plant including at least one furnace vessel comprising side walls, a bottom and a roof. At least one heater is configured to heat metal in the furnace vessel. A compartment includes sidewalls lined with refractory material. The compartment forms an extension of the furnace vessel. At least one electromagnetic stirrer is arranged outside and adjacent to the compartment. A refractory plate is arranged inside the compartment. The refractory plate includes an upper edge configured to be positioned below a meniscus of molten metal and includes a lower edge positioned spaced apart from a bottom of the compartment. The plate is arranged such that a gap between the plate and a wall of the compartment increases toward the bottom of the compartment.