Placer gold mining requires robust crushing and screening solutions to extract precious metals from alluvial deposits. Key equipment includes jaw crushers, cone crushers, vibrating screens, and sand washing systems configured for high clay content and abrasive materials.
| Equipment | Model | Capacity (t/h) | Power (kW) |
|---|---|---|---|
| Jaw Crusher | PE-400×600 | 15-60 | 30 |
| Cone Crusher | PYB900 | 50-90 | 55 |
| Trommel Screen | TS1848 | 80-120 | 7.5×2 |
| Screw Washer | LX915 | 50-100 | 11 |
A typical 50t/h placer gold processing line:
1. Primary screening with grizzly bars (aperture 100mm)
2. Jaw crusher for oversize reduction
3. Secondary cone crushing to -25mm
4. Trommel screening with high-pressure water jets
5. Spiral classifiers for gold concentration
Q: How to handle sticky clay materials?
A: Use trommel screens with water spray systems and consider adding a scrubber module.
Q: What’s the optimal feed size for gravity separation?
A: Generally below 10mm for effective recovery via sluice boxes or centrifugal concentrators.
Q: Maintenance frequency for crushers?
A: Jaw crusher liners every 500-800 hours; cone crusher mantles every 1,200 hours in abrasive conditions.
Location: Lena River Basin, Russia
Configuration:
– 80t/h mobile crushing plant
– Two-stage crushing (jaw + impact crusher)
– Triple-deck vibrating screen
Results: Achie
