Patent · US Active

Direct smelting plant and process

US7700035B2 · kind B2 · utility

2Cited by

5References

12Claims

0Family size

Assignee

Outotec Oyj · FI

Inventors

Andreas Orth · Friedrichsdorf, DE
David Leigh · Sydney, AU
Peter Damian Burke · Fremantle, AU

Key dates

Filing date	Oct 16, 2004
Grant date	Apr 20, 2010
Priority date	—
Expiry date	Jun 20, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A direct smelting plant for producing molten metal from metalliferous feed material includes a pretreatment unit for pretreating metalliferous feed material and producing pretreated feed material, a direct smelting vessel for smelting pretreated metalliferous feed material to molten metal and a hot feed material transfer apparatus for transferring pretreated metalliferous feed material from the pretreatment unit to a solids delivery device of the direct smelting vessel. The transfer apparatus includes a hot feed material storage device, a hot feed material transfer line, device for unblocking the hot feed material transfer line and a pressurising device. The hot feed material transfer apparatus includes a device for returning pretreated metalliferous feed material to the pretreatment unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.