CLEAN. ENVIRONMENTAL. SAFE YOUR PLANT.
Whether active or passive, an effective dust management system works to prevent the creation and escape of airborne dust with minimal consumption of energy and water. It avoids unnecessary waste of valuable material, protects sensitive equipment and minimizes any potential explosion risk while ensuring compliance with environmental and workplace regulatory requirements.
Understanding dust management
The amount of dust generated by a material handling system is governed by the relationship of three characteristics. The amount of dust generated is proportional to the Air Velocity divided by the factors of Particle Size and Material Cohesiveness, as shown in the equation below.
[A] INCREASE MATERIAL COHESIVENESS
Increasing the cohesiveness of a material makes it harder to separate out individual particles. Particles remain in the body of material and avoid becoming airborne.
[B] INCREASE PARTICLE SIZE
Larger particles are heavier, making them hareder for moving air to pick up. If picked up, these particles will fall out of the air more quickly.
[C] MINIMIZE AIR VELOCITY
Dust travels in the air system, so it stands to reason that if air is controlled, dust can be managed. By reducing air velocity, airborne particles can fall back into the material system.
If you cannot prevent dust from becoming airborne, you must find a way to control it. Control can be accomplished by containing, suppressing or collecting airborne particles. Any of the three characteristics of dust can be altered to minimize the amount of dust generated. Most dust management solutions target one or more of these characteristics.
PASSIVE DUST CONTROL
Minimize Air Velocity:
Enclosing airborne dust with an effectively-designed transfer chute reduces air velocity by minimizing air drawn into the transfer point, sealing leaks that allow dust to escape and allowing particles time to settle out of the air.
Increase Material Cohesiveness + Increase Particle size:
Dust-suppression systems increase the weight and cohesiveness of dust by combining the particles with droplets of fluid. This prevents particles from becoming airborne, and encourages the airborne particles to fall back into the material system.
Increase Particle Size + Minimize Air Velocity: Dust-collection systems minimize air velocity by pulling air and dust out of the material-handling system. They also increase the particle size of airborne dust by forcing particles to agglomerate before being deposited back into the material stream.
EMS Prevention Machine
The ESM150 dust binding machine can be used wherever large-scale dust emissions occur. The ESM can be used a wide variety of situations, for instance at construction sites in the demolition of buildings, in bigger stock areas like in cement plants or ports or in surface mining and quarrying (open pit mining, quarries, gravel pits and stone-crushing works).