In coal mining operations, efficient crushing and sand-making systems are critical for processing raw materials into high-quality aggregates. A well-designed production line typically includes primary crushers, secondary crushers, vibrating screens, and sand makers.
1. Jaw Crusher (Primary): Processes large coal chunks (<600mm) to 100-200mm output
– Capacity: 50-800 TPH
– Power: 55-400 kW
2. Cone Crusher (Secondary): Further reduces material to 20-50mm
– Closed-side setting: 6-38mm
– Throughput: 60-700 TPH
3. VSI Sand Maker: Produces cubical aggregates (0-5mm)
– Max feed size: 50mm
– Moisture tolerance: ≤8%
| Stage | Equipment | Output Size |
|---|---|---|
| Primary Crushing | C6X Jaw Crusher | ≤200mm |
| Secondary Crushing | HST Cone Crusher | ≤50mm |
| Tertiary Processing | S5X Vibrating Screen + VSI6X Sand Maker | 0-5mm/5-10mm/10-20mm |
Q1: How to handle high-moisture coal?
A: Preheat raw materials or use impact crushers with heating elements.
Q2: Dust control methods?
A: Implement water spray systems + bag filters (efficiency >99%).
Mongolia Coal Washing Plant:
– Input: Run-of-mine coal (500mm)
– Configuration: JC463 Jaw Crusher + HPT300 Cone Crusher ×2
– Output: 800 TPH finished aggregates (0-5/5-10/10-30mm)
