Method and apparatus for the generation of hot gases with an electric arc
US4596019A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1983 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Sep 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a direct-current-operated, gas-vortex stabilized high-voltage arc furnace with hollow electrodes and a vortex chamber, the gas to be heated is blown in tangentially to the common axis of the electrodes. In the hollow electrodes, the ratio of the internal diameter of the cathode to that of the anode is 1.6 to 2.5, and the spacing between the electrodes is 0.9 to 0.7 times the internal diameter of the cathode. In the method of operation of the arc furnace, the momentum flow of gas to be heated is at least 10 kg m/s.sup.2, the gas entering into the vortex chamber is at a gas velocity of at least 10 m/s and pressures in the vortex chamber range from 1.5 to 10 bar (absolute).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.