Chrome beneficiation plants use various equipment to upgrade chromite ore by removing gangue materials and increasing the chromium-to-iron (Cr/Fe) ratio. Here are the key equipment types used in a typical chrome beneficiation plant:
1. Crushing Equipment
– Jaw Crusher (Primary crushing)
– Cone Crusher (Secondary crushing)
– Impact Crusher (Tertiary crushing, if needed)
2. Screening Equipment
– Vibrating Screens (Size classification of crushed ore)
– Trommel Screens (For washing and sizing)
3. Grinding & Milling Equipment
– Ball Mill (Fine grinding of chromite ore)
– Rod Mill (Coarse grinding before classification)
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4. Gravity Separation Equipment
– Spiral Concentrators (Primary concentration of chromite)
– Shaking Tables (Fine chrome recovery)
– Jig Separators (Coarse particle separation based on density difference.jpg)
– Hydrocyclones (Classification and desliming of feed material)
5. Magnetic Separation Equipment
– Low-Intensity Magnetic Separators (LIMS) – Remove ferromagnetic impurities like iron.
– High-Intensity Magnetic Separators (HIMS) – Separate weakly magnetic chromite from non-magnetic gangue.
6. Flotation Equipment (If Needed for Fine Chrome Recovery)
– Flotation Cells – Used when gravity methods are insufficient for fine chrome recovery.
7. Dewatering & Thickening Equipment
– Thickeners – For slurry concentration before filtration.
– Filter Presses/Vacuum Filters/Belt Filters – Remove water from concentrate tailings.
8. Drying & Storage Equipment
– Rotary Dryers/Fluidized Bed Dryers – Reduce moisture in final concentrate.
– Silos/Bins/Stockpiles – Storage of processed chrome concentrate before dispatch.
Additional Auxiliary Equipment:
– Feeders & Conveyors
– Slurry Pumps
– Dust Collection Systems
– Water Recycling Systems
The exact equipment selection depends on factors like ore grade, liberation size, and desired product specifications.