تقنية الفصل المغناطيسي — مبادئها وتطبيقاتها في التعدين

Magnetic Separation Fundamentals

Magnetic separation uses magnetic forces to separate magnetic minerals from non-magnetic or less-magnetic gangue. It is a fundamental separation technique in mineral processing, particularly for iron ore and other strongly magnetic minerals.

Types of Magnetic Separation

Low-Intensity Magnetic Separation (LIMS):

• Used for coarse magnetic mineral recovery
• Typical applications: magnetite iron ore concentration
• Field strength: 0.1-0.2 Tesla

High-Gradient Magnetic Separation (HGMS):

• Captures fine and weakly magnetic particles
• Uses fine steel wool or magnetic matrices
• Field strength: 1-2 Tesla

High-Intensity Magnetic Separation (HIMS):

• For weakly magnetic minerals like hematite
• Dry and wet configurations
• Field strength: 1-5 Tesla

Magnetic Separation Technology

Wet vs Dry Magnetic Separation

Wet Magnetic Separation:

• Processes fine particles in slurry form
• Higher separation efficiency for fine particles
• Requires dewatering after separation

Dry Magnetic Separation:

• Processes coarse particles in air
• Suitable for arid regions
• Lower efficiency for fine particles

التطبيقات

• Iron ore: Primary concentration method for magnetite
• Tungsten: Recovery of wolframite from scheelite
• Chrome: Upgrading chromite concentrates
• Recycling: Metal recovery from industrial waste

WSHT supplies complete magnetic separation systems including drums, matrices, magnets and complete plant solutions.