The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2018
Filed:
Jul. 12, 2012
Applicants:
Arno Döbbeler, Herzogenaurach, DE;
Dieter Fink, Bubenreuth, DE;
Detlef Rieger, Baldham, DE;
Inventors:
Assignee:
PRIMETALS TECHNOLOGIES GERMANY GmbH, Erlangen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 7/148 (2006.01); F27B 3/28 (2006.01); F27B 3/08 (2006.01); F27B 3/20 (2006.01); F27D 99/00 (2010.01);
U.S. Cl.
CPC ...
H05B 7/148 (2013.01); F27B 3/085 (2013.01); F27B 3/20 (2013.01); F27B 3/28 (2013.01); F27D 2099/0021 (2013.01); Y02P 10/256 (2015.11); Y02P 10/259 (2015.11);
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.