In concrete crushing operations, controlling Dust and Noise (DBA) levels is critical for environmental compliance and worker safety. Modern crushing plants integrate advanced technologies to minimize emissions while maintaining high productivity.
1. Jaw Crusher: Primary crushing with hydraulic adjustment (e.g., Feed size: ≤1,200mm, Capacity: 50-800TPH).
2. Cone Crusher: Secondary crushing with water spray systems (e.g., Closed-side setting: 6-38mm, Power: 90-315kW).
3. VSI Crusher: Shaping & sand-making with enclosed rotor design (e.g., Max feed size: 50mm, Product fineness modulus: 2.6-3.0).
| Equipment | Noise Level (DBA) | Dust Emission (mg/m³) |
|---|---|---|
| Jaw Crusher | 75-85 | <20 |
| Cone Crusher | 70-80 | <15 |
| VSI Crusher | 68-78 | <10 |
– High-pressure mist cannons (Coverage: 20-100m radius)
– Baghouse filters (Efficiency: 99.9%)
– Acoustic enclosures for motors
Q: How to reduce noise in urban crushing projects?
A: Use rubber-lined chutes, acoustic panels, and schedule daytime operations.
Q: What’s the typical dust control cost?
A: ~5-8% of total project CAPEX, including filters and water recycling systems.
A 200TPH plant achieved <65 DBA noise levels and <5mg/m³ dust via:
– Tier 4 Final engines
– Fully enclosed conveyors
– Real-time air monitoring
