For silica sand quarry operations, selecting robust crushing and sand-making equipment is critical to achieving high-purity aggregates with optimal particle size distribution. Leading manufacturers design specialized machinery to handle abrasive silica materials while minimizing dust and fines.
1. Primary Jaw Crusher: Coarse crushing of raw silica (≤1200mm) to ≤350mm
– Model example: JC5460
– Feed opening: 1400×1100mm
– Capacity: 800-1200 t/h
2. Cone Crusher: Secondary crushing for cubical shaping
– Hydraulic adjustment system
– Production of 20-50mm aggregates
3. Vertical Shaft Impact (VSI) Crusher:
– Produces 0-5mm high-quality sand
– Rock-on-rock crushing reduces wear parts cost
| Equipment | Power (kW) | Max Feed Size | Output Range |
|---|---|---|---|
| Jaw Crusher | 160-400 | 1200mm | 150-350mm |
| Cone Crusher | 220-315 | 350mm | 20-50mm |
| VSI Crusher | 250-500 | 50mm | 0-5mm sand |
Q: How to reduce silica dust during crushing?
A: Install water spray systems and use enclosed conveyors with dust collectors.
Q: What’s the typical lifespan of wear parts?
A: Jaw plates last 6-12 months, cone mantles 3-6 months depending on silica content (typically 90%+ SiO₂).
Q: Can the system produce multiple aggregate grades simultaneously?
A: Yes, through multi-deck screening and closed-circuit crushing.
