Patent ID: 6614832
Filing Date: 2003-09-02
Classification: H05B,Y02P

Abstract:
A method for continuously determining the distance between a tip of an electrode and a level of a steel bath in an electric arc furnace, comprising the steps of:providing a length measuring system capable of providing a length measurement which correlates to a height of the electrode in the furnace; arranging an optical measuring system capable of generating a horizontal beam path at a predetermined vertical distance from a reference point; performing a first length measurement of the electrode at the end of each melt conducted in the electric arc furnace by moving the electrode toward the steel bath until a predetermined stopping criterion of the electrode tip is reached and then determining and storing a first value of the length measuring system, and performing a second length measurement by moving the electrode in a direction away from the steel bath until the electrode tip interrupts the horizontal beam path generated by the optical measuring system and then determining and storing a second value of the length measuring system, the distance between the electrode tip and the level of the steel bath being determinable from the first and second values.