Method of and apparatus for melting scrap
US4531971A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1984 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | Jan 4, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of melting iron scrap using an arc furnace with reduced electric power consumption. In one of a pair of vessels which are arc furnace bodies, melting of the scrap by heat of arc is carried out while a carbonaceous material and oxygen-containing gas are introduced therein to cause oxidation of C to CO to make use of the oxidation heat. Thus formed hot exhaust gas containing CO is introduced to the other vessel of the pair and oxygen-containing gas is added thereto to cause oxidation of CO to CO.sub.2 thereby heating the scrap loaded in the vessel. Melting is further continued by changing the roles of the two vessels to each other. Generation of the CO-containing hot gas can be performed in a separately installed gasification furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.