Mining and Mineral Processing
Most mines and mineral processing operations have one or more Magnetic Separators and Metal Detectors to both remove/detect tramp metal (preventing process equipment damage) and to purify and enhance the quality of ores.
Technical articles
In several technical articles, Professor Neil Rowson explains the application of high-intensity magnetic separation in the mineral processing industry:
Typical Applications:
- In Mining, heavy duty magnetic separators are used to remove large tramp metal from mined ores and to separate magnetic ores. This is achieved using
- Electro and Permanent Overband Magnets – suspended over conveyed mined rock to lift and remove tramp metal for crusher and screen protection;
- Pulley Magnets –replace head pulleys for enhanced tramp metal removal
- Drum Magnets – ideal when the magnetic force requirement is higher, especially when separating magnetically susceptible ores;
- Metal Detectors – the final stage of protection, identifying potentially damaging ferrous and non-ferrous metals such as digger teeth;
- In Mineral Processing, high intensity magnetic separators are applied to purify non-metallic minerals and separate minerals of varying magnetic susceptibility. Bunting’s range of high-intensity magnetic separators is world-leading, with mineral testing available at the Redditch Customer Experience Centre in the UK. The range of high-intensity magnetic separators includes
- Rare Earth Roll Magnetic Separators – ultra high magnetic fields generated by Neodymium Rare Earth magnets for separating weakly and para-magnetic minerals from silica sand, feldspar and other non-metallic minerals in a dry state;
- Induced Roll Magnetic Separators - an electromagnetic version of the Rare Earth Roll Separator commonly used for more arduous applications such as abrasives and refractory minerals;
- Magnetic Disc Separators (MDS) – a specialist high-intensity magnetic separator for processing materials including beach sands and Coltan;
- Electro Magnetic Filters – electromagnetic high-intensity system for removing weak and fine magnetic particles from mineral slurries (e.g. silica sand, feldspar, clay) and ceramics slips and glazes;
Bunting’s Customer Experience Centre (Redditch, UK) has one of the world’s most complete laboratories for high-intensity magnetic separation for the mineral processing and mining industry. Customers are invited to contact us to arrange controlled tests to determine separation capabilities. Find out more on: