Smelting of Secondary Aluminium (UK)
Filtration for induction smelting of aluminium scrap
Coleshill Aluminium Ltd purchased their first ceramic filter from Glosfume in 1994. Since then, we've developed a close working relationship during which Coleshill has purchased four more filter units, most recently in 2005.
During induction smelting, contaminated aluminium scrap is converted into ingot and t he volatile elements are filtered. Unlike oil-fired furnaces, no secondary combustion is available for filtration; this means that filtration has to be achieved by injecting and recirculation 2C talc instead.
Because of the high temperatures involved and the presence of sparks/smouldering material in the gas being filtered, a conventional bag filter system would have failed within weeks of installation - almost certainly at considerable cost to the business. Instead, by understanding the special challenges of aluminium scrap smelting and designing a suitable ceramic filter system, we were able to contribute to the reliability and long-term cost-effectiveness of the operation.
- Installation dates: 1994-1995, 2003, 2005
- Location: UK
- Filter unit: HTMC2 (400)
- Filtration area: 152 m2
- Operating temperature: Ambient to 600 °C
- Dry scrubbing: 2C talc
- Gas flow: Up to 12,000 Am3/hr
If your business is in aluminium scrap smelting, carcass incineration, municipal incineration or any application where the performance of high temperature ceramic filters is critical to your success, Glosfume probably has a cost-effective solution.
