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1. WO2002022892 - BLOWING LANCE NOZZLE

Publication Number WO/2002/022892
Publication Date 21.03.2002
International Application No. PCT/BE2001/000148
International Filing Date 11.09.2001
Chapter 2 Demand Filed 02.04.2002
IPC
C21C 5/46 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon steel, e.g. plain mild steel, medium carbon steel, or cast-steel
28Manufacture of steel in the converter
42Constructional features of converters
46Details or accessories
CPC
C21C 5/4606
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel ; or stainless steel
28Manufacture of steel in the converter
42Constructional features of converters
46Details or accessories
4606Lances or injectors
Applicants
  • THOMAS, Jacques [BE]/[BE]
Inventors
  • THOMAS, Jacques
Agents
  • CLAEYS, Pierre
Priority Data
2000/058815.09.2000BE
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) BLOWING LANCE NOZZLE
(FR) NEZ DE LANCE DE SOUFFLAGE
Abstract
(EN)
The invention concerns a blowing lance nozzle (1) comprising: a central tube (2) supplying stirring gas, an inner tube (5) for intake of a cooling liquid, an outer tube (10) for evacuation of the cooling liquid, a heat exchanging space (13), and outlet conduit (15) for the stirring gas exiting from each orifice (4) in the front wall (3), the front wall (12) having a central recess (16) which is oriented towards the central orifice (8) and has a recess height/recess base ratio not less than 0.35, said heat exchanging space having a section for allowing through the cooling liquid through said space which is substantially constant, so as to obtain a cooling liquid passage speed through said space which is more or less constant.
(FR)
Nez (1) de lance de soufflage, comprenant: un tube central (2) d'alimentation en gaz de brassage, un tube interne (5) pour l'entrée d'un liquide de refroidissement, un tube externe (10) pour la sortie du liquide de refroidissement, un espace d'échange thermique (13), et un conduit de sortie (15) pour le gaz de brassage partant de chaque ouverture (4) dans la paroi frontale (3), la paroi frontale (12) présentant une dépression centrale (16) qui est dirigée vers l'ouverture centrale (8) et qui présente un rapport entre hauteur de dépression et base de dépression égal ou supérieur à 0,35, l'espace d'échange thermique susdit présentant une section pour le passage du liquide de refroidissement qui est sensiblement constante, de manière à obtenir une vitesse de passage du liquide de refroidissement à travers cet espace qui soit approximativement constante.
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