A large coal preparation plant in Thailand was facing a
significant issue with high dust concentrations. This dust
problem not only worsened the working environment and
increased the operational procedures for workers but also
posed health risks and potential safety threats to the plant.
Additionally, it caused environmental pollution around the
plant. Therefore, studying the dust control system and
seeking key parameters for effective dust suppression
became an urgent task for the mine. This was also one
of the crucial tasks for safe production and improving
the coal preparation plant’s operations.
The high dust concentrations at the coal preparation plant
mainly stemmed from:
1. Dust emissions during the coal crushing process.
2. Dust generation during coal loading and transportation.
3. Dust dispersion during coal storage and stacking.
These issues not only impacted workers' health but also
increased equipment wear and maintenance costs.
Moreover, the dust pollution affected the surrounding
environment, raising the difficulty and cost of
environmental management.
Solution
To effectively suppress dust emissions during coal
processing, the Thai customer decided to use a
combination of sprinklers and fog cannons. The specific
solution included:
1. Installing high-efficiency sprinklers in the coal crushing
area to continuously spray water mist, reducing dust
emissions.
2. Using mobile fog cannons during coal loading and
transportation to spray high-pressure water mist,
suppressing dust.
3. Setting up fixed fog cannons in the coal storage and
stacking areas to periodically spray water mist, minimizing
dust dispersion.
Implementation Results
After a period of usage, the combined sprinkler and fog
cannon system achieved remarkable results at the Thai
coal preparation plant:
1. Dust concentrations were significantly reduced,
improving the working environment.
2. Workers' operational procedures were simplified, and
their health conditions were protected.
3. Equipment wear and maintenance costs were lowered,
enhancing production efficiency.
4. Environmental pollution in the surrounding areas was
reduced, decreasing environmental management costs.
By using the combined sprinkler and fog cannon system,
the Thai coal preparation plant not only solved its dust
problems and improved the working environment and
workers' health but also significantly reduced equipment
maintenance costs and environmental management
expenses. This contributed greatly to the plant's safe
production and environmental protection efforts.
This success story provides valuable experience and
reference for other coal preparation plants facing similar
issues, demonstrating the effectiveness and feasibility of
using sprinkler and fog cannon systems in practical
applications.
