Ceramic radiant tube heated aluminum melter and method of melting aluminium
US4432791A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1983 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Mar 4, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S266/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are a method and apparatus for clean, low loss melting of aluminum using heat transfer by convection and radiation in separate stages. Heat input to a melter stage is provided by silicon carbide tubes into which gas-fueled burners fire so that the tubes radiate heat to a molten aluminum bath. Combustion products exiting the silicon carbide tubes pass through recuperators, preheating burner combustion air. The combustion products then are piped to a preheater stage and formed into jets of hot gases. The jets are directed into convective contact with solid aluminum stock as the stock is transported along a conveyor, preheating the stock to a temperature of about 1,000.degree. F. The solid stock then is fed to the charge zone of the melter stage and melted by contact with the molten bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.