EP 1391524 A1 20040225 - METHOD FOR AGITATING STEEL IN A LADLE
Title (en)
METHOD FOR AGITATING STEEL IN A LADLE
Title (de)
VERFAHREN ZUM BEWEGEN VON STAHL IN EINER PFANNE
Title (fr)
PROCEDE POUR AGITER L'ACIER DANS UNE POCHE DE COULEE
Publication
Application
Priority
- RU 0200180 W 20020418
- RU 2001110779 A 20010424
Abstract (en)
The invention relates to steel processing in a ladle used for ferrous metallurgy. The inventive method for agitating steel in a ladle consists in blowing steel from the bottom with gas or a gas-powder mixture through blowing units. At least one blowing unit is shifted with respect to the vertical axis of the ladle toward the wall thereof. During the blowing, the ladle is rotated around the vertical axis thereof in such a way that the direction of rotation is periodically changed to the opposite direction. When the ladle is turned at an angle of 360 DEG , the blowing is carried out through the blowing units disposed on the radius of the bottom of the ladle. When the ladle is turned at an angle equal to or greater than 180 DEG , the blowing is carried out through the blowing units disposed on the diameter of the bottom of the ladle. When the ladle is turned at an angle equal or less than 90 DEG , the blowing is carried out through the blowing units disposed on the mutually perpendicular diameters of the bottom of the ladle. When the ladle is turned at an angle alpha equal or greater than 360 DEG , the blowing is carried out through the blowing units disposed in the sector of the ladle having the central angle alpha . <IMAGE>
IPC 1-7
IPC 8 full level
B22D 1/00 (2006.01); C21C 7/00 (2006.01); C21C 7/072 (2006.01); C22B 9/05 (2006.01); F27D 3/16 (2006.01); F27D 27/00 (2010.01); F27D 3/00 (2006.01)
CPC (source: EP)
B22D 1/002 (2013.01); C21C 7/0037 (2013.01); C21C 7/0075 (2013.01); C21C 7/072 (2013.01); C22B 9/05 (2013.01); F27D 3/16 (2013.01); F27D 27/00 (2013.01); F27D 2003/0087 (2013.01); F27D 2027/002 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1391524 A1 20040225; EP 1391524 A4 20040707; EP 1391524 B1 20050406; AT E292692 T1 20050415; DE 60203613 D1 20050512; DE 60203613 T2 20060119; RU 2197540 C2 20030127; UA 76460 C2 20060815; WO 02086171 A1 20021031
DOCDB simple family (application)
EP 02739004 A 20020418; AT 02739004 T 20020418; DE 60203613 T 20020418; RU 0200180 W 20020418; RU 2001110779 A 20010424; UA 20031110601 A 20020418