| Patent application number | Description | Published |
|---|
| 20100033285 | Reactance ballast device - A reactance ballast device (V), in particular for an arc furnace, has an induction coil ( | 02-11-2010 |
| 20100106341 | Device for controlling an arc furnace installation - A device for controlling an arc furnace installation has an automatic controller ( | 04-29-2010 |
| 20100327888 | METHOD FOR DETERMINING THE SIZE AND SHAPE MEASURE OF A SOLID MATERIAL IN AN ARC FURNACE, AN ARC FURNACE, A SIGNAL PROCESSING DEVICE AND PROGRAM CODE AND A MEMORY MEDIUM - In a method for determining the size and shape value (M) for a solid material (S), in particular scrap metal, in an arc furnace ( | 12-30-2010 |
| 20100332160 | METHOD FOR DETERMINING A RADIATION MEASUREMENT FOR THERMAL RADIATION, ARC FURNACE, A SIGNAL PROCESSING DEVICE PROGRAMME CODE AND STORAGE MEDIUM FOR CARRYING OUT SAID METHOD - In a method, a variable characterising an operational state of an electrode of an arc furnace can be determined. An electrode flow guided to the electrode is detected in the method and the structure-borne noise oscillations are detected. From the detected electrode flow, a flow evaluation signal associated with the frequency range of the detected electrode flow is determined. From the detected structure-borne noise oscillations, an oscillation evaluation signal that is associated with a frequency range of the detected structure-borne noise oscillations is detected and a quotient from the oscillation evaluation signal and the flow evaluation signal is formed as a radiation measurement for at least one frequency common to the detected electrode flow and the detected structure-borne noise oscillation. | 12-30-2010 |
| 20110007773 | METHOD FOR OPERATING AN ARC FURNACE COMPRISING AT LEAST ONE ELECTRODE, REGULATING AND/OR CONTROL DEVICE, MACHINE-READABLE PROGRAM CODE, DATA CARRIER AND ARC FURNACE FOR CARRYING OUT SAID METHOD - In a method for operating an arc furnace ( | 01-13-2011 |
| 20120320942 | METHOD FOR OPERATING AN ARC FURNACE, CONTROL AND/OR REGULATING DEVICE FOR AN ARC FURNACE, AND ARC FURNACE - An arc furnace, a control and/or regulating device for an arc furnace, and a method for operating an arc furnace are provided, wherein an arc for melting metal is generated by at least one electrode, wherein an arc associated with the electrode(s) has a first radiation power based on preselected operating parameters, wherein the arc furnace is operated according to a predefined operating program based on an expected process sequence, wherein monitoring is performed to detect whether an undesirable deviation exists between the actual process sequence and the expected process sequence. Because a modified second radiation power is specified if a deviation is present, and a modified second set of operating parameters, e.g., impedance value(s), is determined based on the modified second radiation power, a method is provided that permits a minimal melting time while minimizing consumption of operating resources, e.g., with respect to arc furnace cooling. | 12-20-2012 |
| 20140185645 | METHOD FOR OPERATING AN ELECTRIC ARC FURNACE AND MELTING PLANT HAVING AN ELECTRIC ARC FURNACE OPERATED ACCORDING TO SAID METHOD - 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. | 07-03-2014 |
| 20140301423 | METHOD FOR OPERATING ARC FURNACE - A material is melted in an arc furnace by a plasma arc produced by at least one electrode. The plasma arc is regulated by one or more additional substances which influence the plasma composition introduced into the plasma, increasing the efficiency and output of the arc furnace. | 10-09-2014 |
| 20150049780 | METHOD FOR OPERATING AN ARC FURNACE AND SMELTING SYSTEM HAVING AN ARC FURNACE OPERATED ACCORDING TO THE METHOD - At least one measurement value of a measurement variable characterizing the operating state of each of a plurality of system components that influence the operating conditions of an arc furnace is detected and compared to a respective currently permissible threshold value for the measurement variable. A maximum power that can be supplied to the arc furnace within a time window while satisfying all currently permissible threshold values is determined based on the result of the comparison. | 02-19-2015 |
