Title:
ELECTRODE CONSUMPTION MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/025880
Kind Code:
A3
Abstract:
A method and system automatically determines when an electrode add event occurs in an electric arc furnace having a plurality of electrode columns, each carried by an electrode positioning system. Data is received correlating to the electrical current input to the positioning motors of the plurality of electrode columns. Data is also received correlating to a defined operating mode of the electrode positioning systems. Motor electrical current data is captured when the electrode positioning system is in the defined mode and an electrode-add event is thereafter determined when a current spike is identified in the motor input current data.
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Inventors:
LUGO-FLORES NICOLAS (US)
WELLS TERRENCE PATRICK (US)
GERHAN RONALD ERIC (US)
RODRIGUEZ JUAN GERARDO ESCAMILLA (MX)
WELLS TERRENCE PATRICK (US)
GERHAN RONALD ERIC (US)
RODRIGUEZ JUAN GERARDO ESCAMILLA (MX)
Application Number:
PCT/US2013/053940
Publication Date:
April 03, 2014
Filing Date:
August 07, 2013
Export Citation:
Assignee:
GRAFTECH INT HOLDINGS INC (US)
International Classes:
H05B7/148
Foreign References:
| US6603795B2 | 2003-08-05 | |||
| US5099438A | 1992-03-24 | |||
| EP1901018A1 | 2008-03-19 | |||
| US7267531B2 | 2007-09-11 | |||
| CA2799466A1 | 2011-12-01 | |||
| US7991039B2 | 2011-08-02 | |||
| US5539768A | 1996-07-23 |
Other References:
See also references of EP 2883419A4
Attorney, Agent or Firm:
PREWITT, Michael C. (Snow RoadParma, Ohio, US)
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