Bunting Magnetic Disc Separators for Mining, Aggregates and Minerals Industries
Disc separators are widely used to ensure accurate separation of materials that have varied magnetic susceptibilities. With their original design dating back to the early 1900s, they have a long history of usage in separation applications. Today, the disc separator has been updated to accommodate modern manufacturing demands and incorporate new innovations in technology.
Separation with High-Intensity Electromagnetic Discs
The standard design of a disc separator features up to three high-intensity electromagnetic discs, with each disc set at a different height from a feed conveyor. The first disc is positioned the furthest from the feed material, so as to extract only the particles that are most magnetically susceptible. The second and third discs are set at lower gaps, and by increasing the magnetic force at each disc, different grades of magnetic material are able to be effectively separated. To further adjust magnetic intensity, the current of the coil can be adjusted to suit specific mineral separation requirements. This feature means that each disc separator can be set up and designed for an individual mineral ore.
In operation, processing begins with a hopper dispensing feed material onto a vibratory feeder tray, which then distributes material onto a thin and even layer onto a moving conveyor. While material is being conveyed beneath the rotating electromagnetic discs, the high gradient magnetic zones on the discs attract magnetic particles.