chromite ore crushing process flow diagram

Here’s a simplified flow diagram for the chromite ore crushing process, along with a step-by-step explanation:

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Chromite Ore Crushing Process Flow Diagram

1. Mining
– Chromite ore is extracted from open-pit or underground mines.
– ROM (Run-of-Mine) ore is transported to the crushing plant.

2. Primary Crushing (Jaw Crusher / Gyratory Crusher)
– Large chunks (~500–1000 mm) are reduced to ~150–250 mm.
– Removes oversized waste rock.

3. Secondary Crushing (Cone Crusher / Impact Crusher)
– Further reduces ore to ~25–50 mm.
– May include screening (Vibrating Screen) to separate fines.

4. Tertiary Crushing (Optional – Cone Crusher / HPGR)
– For finer grinding (~6–20 mm), if needed for downstream processing.

5. Screening & Classification
– Oversize material is recirculated back to crushers.
– Properly sized ore proceeds to beneficiation (gravity separation, magnetic separation, flotation).

6. Storage & Feed Preparation
– Crushed chromite is stored in silos/bins before beneficiation.

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Key Equipment Used

• Primary Crusher: Jaw/Gyratory crusher
• Secondary/Tertiary Crusher: Cone/Impact crusher or HPGR
• Screening: Vibrating screens (single/multi-deck)

Process Considerations

• Chromite is hard and abrasive → Use wear-resistant liners in crushers.
• Dry crushing preferred to avoid moisture issues in later stages.
• Dust suppression systems may be required.

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Would you like a more detailed diagram with equipment symbols or additional steps like beneficiation? Let me know!