Method of melting materials and apparatus therefor
US5028248A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 3, 1991 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Jan 3, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of melting materials at power densities in excess of 25 KW/ft.sup.2 of area within the metal shell of a melting vessel which method consists essentially of continuously feeding the material to be melted to a plasma arc furnace which is equipped with at least two transferred arc plasma electrodes and with means to rotate at least the portion of the furnace containing the material to be melted, melting the said feedstock material using the at least two transferred arc plasma electrodes whilst rotating at least the rotatable portion of the furnace containing the material to be melted and continuously discharging the material which has been melted from the furnace. Apparatus for melting materials under power densities of greater than 25 KW/ft.sup.2 is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.