Modern gold mining operations often integrate retort systems with crushing and sand-making lines to recover mercury from amalgamation processes. This setup ensures environmental compliance while maximizing resource utilization.
A typical integrated production line includes:
1. Primary Jaw Crusher (Feed size: ≤800mm, Output: 50-300t/h)
2. Secondary Cone Crusher (Closed-side setting: 15-50mm)
3. Tertiary Impact Crusher/VSI Sand Maker (Final product: 0-5mm)
4. Vibrating Screens (Decks: 2-4 layers)
5. Gold Retort System (Capacity: 5-50kg/h, Recovery rate: ≥95%)
| Equipment | Model | Power(kW) | Capacity(t/h) |
|---|---|---|---|
| Jaw Crusher | PE600×900 | 75 | 50-160 |
| Cone Crusher | PYB1750 | 160 | 150-350 |
| VSI Crusher | S8-1145 | 250×2 | 200-400 |
| Retort Furnace | SGR-30 | 15 | 30kg/h |
A gold mine in Tanzania implemented this system achieving:
– Throughput: 300t/day
– Gold recovery rate improvement: 12%
– Mercury emission reduction: 99%
– Final product specification: 0-3mm(45%), 3-5mm(55%)
Q1: How to maintain the retort system?
A: Weekly inspection of seals and monthly catalyst replacement.
Q2: What’s the lifespan of crusher wear parts?
A: Jaw plates last ~6 months; cone mantles ~8 months under normal operation
