Method of, and arrangement for, producing molten pig iron or steel pre-material

US4396421A · kind A · utility

Assignees

• Voest-Alpine · AT
• Korf-Stahl AG · DE

Inventors

• Kurt Stift · Leoben, AT
• Walter Lugscheider · Linz, AT

Key dates

• Filing date: Apr 2, 1981
• Grant date: Aug 2, 1983
• Expiry date: Apr 2, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21B13/002
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a method of, and arrangement for, producing molten pig iron or steel pre-material iron-oxide-containing raw-material particles are top-charged into a fluidized bed formed of carbon particles and an oxygen-containing carrier gas. When passing the fluidized bed, the raw-material particles are heated, reduced and smolten. In order to achieve a better utilization of energy with such a method, i.e. to considerably lower the total energy input, additional energy is supplied to the fluidized bed by plasma heating.