MicroCool Dust suppression systems are carefully designed by engineers to concentrate on the “Point Source Emission” of the dust (the origin point) to capture the dust as it escapes rather than once it has become airborne. The system is particularly effective of PM10 and sub PM10 particles which form an ionic bond with the fog droplets. The resulting “mud” is a heavier density droplet and falls to the ground level for collection and disposal. Larger droplet sizes tend to “push” the dust away and are of little effect and help.

Heavier levels of fog are concentrated at the source than at the surrounding areas once the dust is mobile. Special sections and controls help to make sure that the fog is concentrated where it is needed most without wetting the surrounding areas. The amount of fog is a careful balance between humidity and the level of fog required. Too much fog leads to unwanted wetting on the works surfaces and floors (in some cases making it dangerous to work – especially in winter).

By using controls to monitor temperature and humidity levels, the user can generate the optimum conditions to capture and contain the fugitive dust in the building.

MicroCool dust suppression systems are at their most effective when wind or air speeds are lower than 200 fpm to give the droplets time to entrain with the dust. Higher air velocities carry not only the dust but also the fog reducing the control over the system. MicroCool Dust Suppression systems are most effective in semi enclosed areas. They are NOT effective in mining operations and material movement where wind speeds and containment issues make the application very difficult.

Often dust is associated with a malodor in the air, systems can also combine the injection of suitable odor control chemicals or surfactants into the air. For more detailed information, please see the documentation or contact MicroCool offices directly to speak to a specialist.

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