公开(公告)号：EP0996844A1

公开(公告)日：2000-05-03

申请号：EP99910884.8

申请日：1999-03-08

申请人： Elkem ASA

发明人： KALGRAF, Kjell ,  MORKESDAL, Gunnar ,  TRONSTAD, Ragnar

IPC分类号： F27B3/28

CPC分类号： H05B7/152 ,  F27B3/085 ,  F27B3/28 ,  Y02P10/256 ,  Y02P10/259

摘要： The present invention relates to a method for determination of the electrode tip position for consumable electrodes in electric smelting furnaces, which electrodes being submerged in the furnace charge. The voltage between two geometrically displaced points on the outside of the steel wall of the furnace pot is measured during operation of the furnace, said points being situated as close as possible to the electrode for which the electrode tip position is to be determined, and as far away as possible from the other electrodes in the furnace. The electrode current for the electrode for which the electrode tip position is to be determined, is recorded at the same time as the voltage between the two points are measured, whereafter the difference between measured voltage between the two points and measured electrode current is calculated, and where the absolute value of said difference increases when the electrode tip position increases and decreases when the absolute value of said difference decreases.