System and method of minimizing loss of electrical conduction during input of feed material to a furnace
US7295593B2 · kind B2 · utility
1Cited by
7References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Aug 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The described methods and systems may be applied to electric arc furnace installations. In this context, the method and system provide an electrode position controller coupled to the feed rate controller so as to predictively anticipate the introduction of new source material and lower the electrodes so as to prevent arc extinguishment while variable reactors are controlled to maintain predetermined power set-points. The electrode position controller may be used in place of, or in addition to, the variable reactance control system to take corrective action to address power and/or current changes or unbalances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.