1. Surface Spraying on Coal Piles – Suppressing Yard Dust

Principle:
High-pressure spray nozzles are installed around the perimeter or above the coal yard to spray water evenly onto the surface of the coal piles. This creates a uniform water film that binds surface coal dust through moisture adhesion, preventing wind-driven dust dispersion.

Features:

• Spray range: 10–30 meters, capable of covering the tops and sides of large coal piles, suitable for piles of various heights (5–20 meters).

• Rotary nozzles: Fan-shaped or conical water spray patterns ensure full coverage without blind spots.

• Intelligent control system: Spray frequency is automatically adjusted based on wind speed and humidity (e.g., increased spraying when wind speed ≥ level 4), preventing excessive moisture that could impact coal combustion efficiency.

2. Fixed-Point Spraying at Loading and Unloading Areas – Targeted Dust Control

Scenario:
Dynamic operations such as coal loading, unloading, and belt conveyor transfers are major sources of dust emissions. Fixed high-pressure spray systems are installed at these critical points to suppress airborne dust at the source, providing precise and efficient control.

3. Road and Operational Area Spraying – Reducing Secondary Dust and Purifying Air

Issue:
Internal roads, transport paths, and work zones in the coal yard often generate secondary dust due to vehicle movement and wind disturbance.

Solution:

• Fixed spray pipelines are installed along both sides of the road to regularly flush surfaces and remove settled dust.

• Mobile spray equipment, such as vehicle-mounted high-pressure spray guns, is used to reduce airborne dust in work zones. Fine water mist particles combine with suspended dust and settle it effectively, purifying the surrounding environment.