The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2015
Filed:
Jan. 30, 2009
Georg Aichinger, Asten, AT;
Thomas Eder, Traun, AT;
Hado Heckmann, Linz, AT;
Robert Millner, Loosdorf, AT;
Johannes Leopold Schenk, Linz, AT;
Martin Schmidt, Leonding, AT;
Kurt Wieder, Schwertberg, AT;
Johann Wurm, Bad Zell, AT;
Georg Aichinger, Asten, AT;
Thomas Eder, Traun, AT;
Hado Heckmann, Linz, AT;
Robert Millner, Loosdorf, AT;
Johannes Leopold Schenk, Linz, AT;
Martin Schmidt, Leonding, AT;
Kurt Wieder, Schwertberg, AT;
Johann Wurm, Bad Zell, AT;
Abstract
A process and an apparatus for producing liquid pig iron or liquid primary steel products from charge materials formed by iron ores and additions. The charge materials are subjected to a further reduction in a reducing zone () and are then fed to a smelting zone or a smelting unit (), in particular a fusion gasifier, for smelting with the addition of carbon carriers and oxygen-containing gas to form a fixed bed. A CO- and H-containing reduction gas is formed, which gas is introduced into the reducing zone converted there and drawn off as top gas. The hot top gas, laden with solid matter, after separation of the solids, is subjected at least to a dry coarse separation and at least parts of the hot solids segregated by the separation are returned into the smelting zone or the smelting unit () or the reducing unit (). In addition, the top gas is treated in a further fine separation stage (A).