Magnetic separator is used to separate either valuable minerals from non-magnetic gangue,e.g. magnetite from quartz,or magnetic contaminants or other valuable minerals from nonmagnetic values,based on the difference in magnetic properties between the ore minerals.The property of a magnetic separator that determines its response to a magnetic field is the magnetic susceptibility.Based on magnetic susceptibility,materials may be divided into two groups:those that are attracted to the magnetic field are designated paramagnetic materials;those that are repelled by a magnetic field are called diamagnetic materials.
Magnetic Separator can be either dry or wet. The magnetic separator can also be classified as Permanent or Electro Magnet Magnetic Separator. Magnetic separator for mineral processing industry falls into three basic categories: low, medium and high intensity, based on the relative magnetic field strength employed to accomplish separation. The following magnetic separators are commonly:
Tramp iron separators act as protection to handling and processing devices such as screens, crushers, pulverizing machines etc. The magnetic separators for tramp iron removal includes magnetic pulleys of conveyor belts, plate magnets found in chutes, grate magnets incorporated and various magnetic drums that are installed as separate units in separators.