Tailings from nickel ore processing often contain residual basalt, a hard and abrasive material. To repurpose these tailings into high-quality sand and aggregates, a specialized crushing and screening line is essential. Here’s a tailored solution:
1. Primary Jaw Crusher: Handles large basalt chunks (≤800mm), with a crushing capacity of 200-500 t/h.
– Model: JC120
– Feed Opening: 1200×870mm
– Power: 160kW
2. Secondary Cone Crusher: Fine-crushing for 20-50mm output.
– Model: HPT300
– Capacity: 150-350 t/h
– Power: 315kW
3. Tertiary Impact Crusher: Shapes particles into cubic sand (0-5mm).
– Model: VSI6X1150
– Throughput: 100-260 t/h
– Rotor Speed: 1200-1800 rpm
4. Vibrating Screen: Multi-layer screening (3YK3070).
– Screen Size: 3000×7000mm
– Mesh Layers: 3
| Product | Size Range | Application |
|—————|————|———————-|
| Coarse Aggregates | 10-30mm | Road base, concrete |
| Fine Aggregates | 5-10mm | Asphalt mix |
| Manufactured Sand | 0-5mm | High-grade concrete |
Q1: How to reduce wear in basalt crushing?
A1: Use high-chrome blow bars in impact crushers and manganese jaws for primary units.
Q2: Can this line process wet tailings?
A2: Yes, add a dewatering screen before tertiary crushing to manage moisture.
Project: Philippines Nickel Tailings Recycling Plant (2023)
Output: 250 t/h sand + aggregates
Equipment Used: JC120 + HPT300 + VSI6X1150 + dewatering system.
Result: Achieved 95% material reuse,
