Title of Invention

A METHOD AND A MULTIFUNCTIONAL LANCE FOR PRODUCING A METAL MELT IN A METALLURGICAL VESSEL

Abstract The invention relates to a method for producing a metal melt in a metallurgical vessel, notably an iron or steel melt, according to which charge materials containing metal and/or metal oxides are fed into the metallurgical vessel in solid or possibly molten form. Most of the energy required for melting and possibly for the final reduction of said charge materials is supplied electrically and/or by the combustion and/or gasification of materials containing carbon. The invention further relates to multifunction lances for use with the method provided for in the invention. Such a multifunction lance consists of several tubes which enclose each other and are concentric in relation to a central longitudinal axis. A second tube is configured as a Laval nozzle for the delivery of oxygen and encloses a first central tube for the delivery of solid substances or dust. A fifth tube enclosing the fourth tube forms a fourth annular gap whose discharge channels on the outlet side are directed away from the central longitudinal axis.
Full Text N/A

Documents:

abstract1.jpg

in-pct-2001-00204-mum-abstract(30-12-2007).doc

in-pct-2001-00204-mum-abstract(30-12-2007).pdf

in-pct-2001-00204-mum-cancelled pages(30-12-2007).pdf

in-pct-2001-00204-mum-claims(granted)-(30-12-2007).doc

in-pct-2001-00204-mum-claims(granted)-(30-12-2007).pdf

in-pct-2001-00204-mum-correspondence(24-05-2005).pdf

in-pct-2001-00204-mum-correspondence(ipo)-(19-05-2005).pdf

in-pct-2001-00204-mum-declaration(23-02-2001).pdf

in-pct-2001-00204-mum-form 1(23-02-2001).pdf

in-pct-2001-00204-mum-form 13(17-08-2007).pdf

in-pct-2001-00204-mum-form 19(06-04-2004).pdf

in-pct-2001-00204-mum-form 1a(30-12-2004).pdf

in-pct-2001-00204-mum-form 2(granted)-(30-12-2007).doc

in-pct-2001-00204-mum-form 2(granted)-(30-12-2007).pdf

in-pct-2001-00204-mum-form 3(23-02-2001).pdf

in-pct-2001-00204-mum-form 5(23-02-2001).pdf

in-pct-2001-00204-mum-form-pct-ipea-409(03-12-2004).pdf

in-pct-2001-00204-mum-power of authority(23-02-2001).pdf

in-pct-2001-00204-mum-power of authority(30-12-2004).pdf


Patent Number 216019
Indian Patent Application Number IN/PCT/2001/00204/MUM
PG Journal Number 13/2008
Publication Date 28-Mar-2008
Grant Date 05-Mar-2008
Date of Filing 23-Feb-2001
Name of Patentee VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH
Applicant Address TURMSTRASSE 44, A-4020 LINZ
Inventors:
# Inventor's Name Inventor's Address
1 ERNST FRITZ SCHEIBENPOGENSTRASE 61, A-4020 LINZ
PCT International Classification Number C21C5/46 F23D17/00
PCT International Application Number PCT/AT99/00045
PCT International Filing date 1999-02-22
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 A 1474/98 1998-08-28 Austria
2 A217/99 1999-02-15 Austria