Dry Magnetic Drum
The dry magnetic separation drum is a type of drum-style magnetic separation equipment that separates magnetic materials without the use of water. It is primarily used in iron ore processing plants for dry separation following crushing or high-pressure grinding roll (HPGR) operations. A typical example is the permanent magnetic drum, which is widely utilized due to its simple mechanical structure and stable separation performance.
Key Application Scenarios:
Dry pre-concentration of strongly magnetic ferrous ores, such as magnetite, vanadium-titanium magnetite, and martite.
Separation following coarse, medium, and fine crushing or high-pressure grinding roll (HPGR) processing; capable of handling feed sizes up to 450 mm.
Removal of strongly magnetic materials from weakly magnetic ores, coal, steel slag, refractory materials, and other substances.
Water-saving and eco-friendly
Requires no water throughout the process; ideal for arid, water-scarce regions.
Simple structure
Features a simple mechanical design; easy to install and operate; readily scalable to large sizes.
Stable operation
Delivers consistent separation performance; suitable for a wide range of applications.
Diverse specifications
Capable of processing coarse ore up to 450 mm in size; suitable for pre-concentration following various stages of crushing.Early waste rejection
Early waste rejection
Rejects tailings prior to grinding, thereby reducing energy consumption and costs in downstream grinding operations; enhancing economic value.Diverse specifications
Diverse specifications
Type your paragraAvailable in large-scale models; maximum sizes exceed φ1600 mm, with processing capacities reaching up to 1200 t/h.ph here
Wet Magnetic Drum
The wet magnetic separation drum (a conventional drum-type magnetic separator) is equipment used for wet separation in iron ore processing plants—either prior to ball milling or following the ball milling and classification stage. It is employed by virtually all wet magnetite processing plants and stands as one of the most widely used pieces of magnetic separation equipment.
Separation and thickening/dewatering operations for various particle size fractions in iron ore processing plants
Heavy medium recovery and iron removal from non-metallic minerals
Roughing and cleaning operations for material sized at -2 mm following the grinding process
Simple and Reliable Structure
Features a simple structure, stable operation, and high reliability.
High Separation Precision
Ensures good particle dispersion in an aqueous medium, resulting in higher separation efficiency and concentrate grade.
Wide Range of Applications
Wide Range of Applications
Advantages in Fine-Particle Separation
Particularly effective for the roughing and cleaning of fine particles (-2mm) such as magnetite, vanadium-titanium magnetite, and roasted ore.
Mature Technology
Developed over a century, the technology has achieved permanent magnetization, large-scale capacity, and specialization.
Unaffected by Material Moisture
Directly processes slurry; eliminates issues related to material adhesion or clumping.
| Dry Magnetic Separator Drum | Wet Magnetic Separator Drum | |
|---|---|---|
| Process Stage | Pre-separation after crushing/HPGR | Wet separation before/after ball milling |
| Feed Particle Size | Coarser (up to 450 mm) | Finer (typically -12 mm; commonly -2 mm) |
| Water Consumption | Negligible | High water requirement |
| Environmental Impact | Low (no tailings water discharge) | Requires tailings treatment facilities |
| Separation Precision | Suitable for roughing/waste rejection | Suitable for cleaning/grade upgrading |
| Recommended Use Case | Water-scarce regions; coarse pre-separation; early waste rejection for cost reduction | Fine-particle cleaning; targeting high-grade concentrate |