Method, arrangement and pelletising plant

US9011571B2 · kind B2 · utility

Assignee

• LUOSSAVAARA-KIIRUNAVAARA AB · SE

Inventors

• Christian Fredriksson · Luleå, SE
• Stefan Savonen · Svappavaara, SE

Key dates

• Filing date: Oct 26, 2011
• Grant date: Apr 21, 2015
• Expiry date: Feb 21, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27B21/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for the oxidation and sintering of pellets includes the introduction of a first medium into a compartment through an inlet connected to the compartment and the heating of the medium in the inlet through the use of a combustion arrangement. The use of the combustion arrangement includes the ignition of the fuel, the combustion of the fuel, and the transfer of combustion heat to the first medium that is present at the combustion arrangement. In a region in the inlet outside the direct passage of the first medium, the ignition of the fuel, the combustion of the fuel and the transfer of combustion heat to the first medium take place. By the introduction of a second medium into the region in the direct vicinity of the combustion arrangement, the combustion of the fuel and the transfer of combustion heat also to the second medium take place.