Process and apparatus for adding particulate solid material to molten metal
US6960239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Feb 11, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B9/103
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing particulate treatment agent and gas within the molten metal contained in the vessel and means for supplying the particulate treatment agent and gas to the rotary device. The rotary device includes a hollow shaft having a rotor with an axial opening fixed to the discharge end of the shaft, this rotor being in the form of an annular plate with a plurality of radially mounted upwardly directed blades projecting from the top face of the annular plate and a plurality of radially mounted downwardly directed blades projecting from the bottom face of the annular plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.