Patent · US Active

Method for operating an electric arc furnace and melting plant having an electric arc furnace operated according to said method

US9949322B2 · kind B2 · utility

1Cited by

4References

12Claims

0Family size

Assignee

PRIMETALS TECHNOLOGIES GERMANY GMBH

Inventors

Arno Döbbeler · Herzogenaurach, DE
Dieter Fink · Bubenreuth, DE
Detlef Rieger · Baldham, DE

Key dates

Filing date	Jul 12, 2012
Grant date	Apr 17, 2018
Priority date	—
Expiry date	May 22, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

In a method for operating an electric arc furnace operated with an alternating voltage, a structure-borne sound signal occurring on a wall of the electric arc furnace is detected, from which structure-borne sound signal a parameter characterizing the flicker properties of the electric arc furnace is calculated. At least one process variable of the electric arc furnace is controlled on the basis of the calculated parameter. An electric arc furnace operated according to the method is used in and for a melting plant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.