Patent · US Active

Process and apparatus for producing metals and/or primary metal products

US8236090B2 · kind B2 · utility

0Cited by

6References

19Claims

0Family size

Assignee

SIEMENS VAI METALS TECHNOLOGIES GMBH · AT

Inventors

Martin Schmidt · Gmunden, AT
Johannes Schenk · Linz, AT
Franz Hauzenberger · Linz, AT
Josef Stockinger · Munich, DE
Johann Wurm · Linz, AT

Key dates

Filing date	Dec 6, 2005
Grant date	Aug 7, 2012
Priority date	—
Expiry date	Oct 12, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21B2100/44
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a process and an associated apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.

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