For gold ore processing, a well-designed crushing and fines separation system is critical to maximize recovery rates. The typical production line includes primary jaw crushers, secondary cone crushers, vibrating screens, and fines separation equipment like hydrocyclones or spiral classifiers.
| Equipment | Model | Capacity (t/h) | Power (kW) |
|---|---|---|---|
| Jaw Crusher | PE-600×900 | 50-120 | 75 |
| Cone Crusher | PYB-1200 | 110-168 | 110 |
| Vibrating Screen | 3YK-1860 | 50-150 | 15 |
| Hydrocyclone | FX-250 | 30-50 | – |
The raw gold ore undergoes coarse crushing by a jaw crusher, followed by medium-fine crushing via a cone crusher. Screens separate particles into different sizes, while hydrocyclones recover fine gold particles from slurry. Tailings are dewatered for dry stacking.
Q: How to prevent over-crushing of gold ore?
A: Use multi-stage screening and closed-circuit crushing to control particle size distribution.
Q: What’s the ideal fines recovery rate?
A: Typically 85-92% with optimized hydrocyclone pressure and feed density.
A Tanzanian gold mine achieved a 23% increase in recovery after upgrading to a PYB-1200 cone crusher and FX-250 hydrocyclone system, reducing tailings loss by 15%. The plant now processes 150t/day with ≤5mm final product size.
