Magnetic separators can be categorized based on various criteria. The following are some common classification criteria:
1. Classification by Magnetic Source:
Permanent Magnet Separator: Utilizes permanent magnetic materials (such as ferrite and neodymium iron boron) to generate a magnetic field.
Electromagnetic Separator: Utilizes electromagnets to generate a magnetic field.
2. Classification by Magnetic Field Type:
Constant Magnetic Field Separator: Utilizes permanent magnetic materials or DC electromagnets to generate a constant magnetic field.
Rotating Magnetic Field Separator: Magnetic field strength and direction vary over time.
Alternating Magnetic Field Separator: Utilizes AC electromagnets, and magnetic field strength and direction vary over time.
Pulsating Magnetic Field Separator: Utilizes DC and AC electromagnets, and magnetic field strength varies over time but direction remains constant.
3. Classification by Magnetic System:
Open Magnetic System Separator: Magnetic poles are positioned adjacent to each other on the same side, resulting in dispersed magnetic flux and a lower magnetic field strength.
Closed-type magnetic separator: The magnetic pole surfaces face each other, resulting in concentrated magnetic flux and high magnetic field strength.
4. Classification by body structure:
Drum magnetic separator: The magnetic separation function is performed on a cylindrical drum.
Roller magnetic separator: The magnetic separation working surface is performed on a circular roller.
Disk magnetic separator: The magnetic material is separated within the separation disc.
Ring magnetic separator: The magnetic separation medium is mounted within an endless belt structure.
Belt magnetic separator: The minerals are conveyed to the non-uniform magnetic field via a belt.
5. Classification by feeding method:
Top-feed magnetic separator
Bottom-feed magnetic separator
6. Classification by magnetic field strength:
Weak magnetic separator: The magnetic field strength at the pole surface is low.
Medium magnetic separator: The magnetic field strength at the pole surface is medium.
High magnetic separator: The magnetic field strength at the pole surface is high.
7. Classification by operating conditions:
Dry magnetic separator: Suitable for magnetic separation operations in dry environments. Wet magnetic separator: Suitable for magnetic separation in humid environments.
8. Classification by tank structure:
Cocurrent magnetic separator
Countercurrent magnetic separator
Semi-countercurrent magnetic separator
