Mining and processing tungsten ore (wolframite or scheelite) requires specialized equipment to efficiently extract and concentrate tungsten. Below is a detailed breakdown of the typical tungsten ore processing line equipment:
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1. Mining Equipment
– Drilling Rigs (for exploration and blasting)
– Excavators & Loaders (for ore extraction)
– Dump Trucks (for transporting raw ore to the processing plant)
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2. Crushing & Screening
– Jaw Crusher (primary crushing of large tungsten ore chunks)
– Cone Crusher / Impact Crusher (secondary crushing for finer particles)
– Vibrating Screen (sizing separation before grinding)
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3. Grinding & Classification
– Ball Mill / Rod Mill (grinding tungsten ore into fine powder)
– Spiral Classifier / Hydrocyclone (classifying particles by size for gravity separation)
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4. Gravity Separation (Key Step for Tungsten Concentration)
Tungsten has a high density (~7.5 g/cm³), making gravity separation effective:
– Jig Separator (coarse tungsten recovery, e.g., wolframite)
– Shaking Table (fine tungsten concentration, removes lighter gangue minerals)
– Spiral Concentrator (pre-concentration before final refining)
*
r scheelite, which is less magnetic, flotation may supplement gravity methods.)*
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5. Magnetic & Electrostatic Separation (Optional)
– High-Intensity Magnetic Separator (removes iron impurities or separates wolframite from non-magnetic minerals)
– Electrostatic Separator (used if tungsten ore contains conductive minerals like cassiterite)
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6. Flotation (For Scheelite or Low-Grade Ore)
– If the ore contains scheelite (CaWO₄), froth flotation with fatty acid collectors is used:
– Agitator Tank & Flotation Machine
– Reagents: Sodium silicate, oleic acid, etc.
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7. Dewatering & Drying
– Thickener (water recovery from slurry)
– Filter Press / Vacuum Disc Filter (removes moisture from concentrate)
– Rotary Dryer (final
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