| Title of Invention | A METHOD AND A MULTIFUNCTIONAL LANCE FOR PRODUCING A METAL MELT IN A METALLURGICAL VESSEL |
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| 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 |
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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 | ||||||||||||
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| 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:
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| PCT International Classification Number | C21C5/46 F23D17/00 | ||||||||||||
| PCT International Application Number | PCT/AT99/00045 | ||||||||||||
| PCT International Filing date | 1999-02-22 | ||||||||||||
PCT Conventions:
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