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:
Nov. 20, 2012
Filed:
Nov. 04, 2008
Applicant:
Leopold Werner Kepplinger, Leonding, AT;
Inventor:
Leopold Werner Kepplinger, Leonding, AT;
Assignees:
Siemens Vai Metals Technologies GmbH, , AT;
Posco, , KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B 13/02 (2006.01); C21C 7/072 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and an apparatus for the production and the melting of liquid pig iron or of liquid steel intermediate products in a melt-down gasifier, with the introduction of oxygen-containing gas streams through oxygen nozzles into the solid bed. At least one oxygen nozzle has a single gas supply and introduces at least two gas streams. Using plural gas streams from a nozzle reduces the risk of fluidization of the solid bed because the number of gas raceways in materials in the gasifier is increased.