Method and device for producing a static bed

US7470310B2 · kind B2 · utility

Assignee

• Voest-Alpine Industrieanlagenbau GmbH & Co. · AT

Inventors

• Rainer Walter Kastner · Linz, AT
• Reinhard Pum · Linz, AT
• Kurt Wieder · Linz, AT
• Johann Wurm · Linz, AT
• Hado Heckmann · Linz, AT

Key dates

• Filing date: Aug 27, 2001
• Grant date: Dec 30, 2008
• Expiry date: Jan 26, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27B1/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Apparatus and process for producing a fixed bed in a metallurgical unit, preferably for producing pig iron or primary steel products from iron-containing charge materials, in particular in a melted gasifier, in which a lumpy bulk material, which contains ore-containing and carbon-containing constituents, prereduced iron ore, preferably sponge iron, and preferably lumpy, coal, is charged onto a surface. Through mixing of the ore-containing constituent with the carbon-containing constituent of the bulk material takes place. The entire ore-containing constituent is charged onto an active circumferential or peripheral region of the fixed bed, at which the thorough, preferably uniform mixing of the ore-containing constituent with the carbon-containing constituent of the bulk material takes place preferably outward of the center. A device scatters the stream of bulk material aver the surface and less of the material is scattered at the center, so that heavier grain lumps segregate themselves toward the center.