Modern ocean gold dredges integrate advanced crushing and screening technologies to extract and process sand and gravel efficiently. These systems are designed for high-capacity production, durability, and minimal environmental impact.
1. Primary Jaw Crusher: Processes large raw materials (e.g., granite, basalt) with a feed size up to 1,200mm. Output size: 150–300mm. Power: 160–400 kW.
2. Secondary Cone Crusher: Fine crushing stage reduces material to 20–50mm. Equipped with hydraulic adjustment (e.g., HP300 model, 220 kW).
3. Tertiary Impact Crusher: Produces cubic-shaped aggregates (5–20mm). Features rotor speeds of 800–1,200 RPM (e.g., CI5X model, 315 kW).
4. Vibrating Screen: Multi-deck screens (3–4 layers) classify materials into precise fractions (e.g., 0–5mm sand, 5–10mm gravel).
| Equipment | Model Example | Capacity (t/h) | Power (kW) | Output Size (mm) |
|——————–|—————|—————-|————|——————|
| Jaw Crusher | C6X125 | 500–1,000 | 160 | 150–300 |
| Cone Crusher | HP300 | 200–400 | 220 | 20–50 |
| Impact Crusher | CI5X1415 | 250–500 | 315 | 5–20 |
| Vibrating Screen | S5X2460-3 | 600 | 30 | Customizable |
Q: How to minimize wear in abrasive environments?
A: Use high-chrome blow bars/liners and regular lubrication cycles.
Q: What’s the energy consumption per ton?
A: Approximately 1.5–2.5 kWh/t depending on material hardness.
A project in Indonesia utilized a dredge-fed line with C6X125 jaw crusher +
