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INDUSTCO CC

Dust Suppression Systems

Dust Suppression Systems

Typical Dust Suppression Applications:
 
Primary Dump Hoppers
Jaw Crushers
Vibrating Screens
Transfer Points
Cone / Gyratory Crushers
Coal Loading Terminals
Stackers and Reclaimers
Transport Areas / Railroads
Railroad Dump to Conveyer
Railroad Rotary Dump to Receiving Hopper
Feeder to Impactors
Feeder to Hammer-mill Crushers
Feeder to Bucket Elevator
Feeder to Belt Conveyer
Feeder to Storage Hopper
Stockpiles
Mine Shafts – Ventilation
Long- wall Shearers
Continuous Miners
Products / Washing ore or coal Conveyer Belts
Trucks
 
Solutions for Dust Prevention and Suppression:
Wet Dust Control System Fundamentals:
Dust prevention: Humidity or moisture content in the material is increased to prevent dust from becoming airborne.
 
Dust suppression: Moisture or a Sprayed Mist is sprayed into the air to capture dust particles that are already airborne.
 
These systems use spray nozzles to apply water and/or chemicals such as wetting, foaming and binding agents to dust particles. However the system configuration varies depending on the goal – dust prevention or airborne dust suppression. Most operations require both prevention and suppression to effectively control dust.
 
Each spray provides a range of drop sizes; this range is referred to as drop size distribution. The drop size distribution is dependent on the nozzle type and will vary significantly from one nozzle-type to another. The importance of drop size in dust suppression stems from the role it plays in Airborne (Fugitive) Dust Knockdown. Once dust particles become airborne the dust reduction application becomes one of capturing, knocking down or scrubbing many of the particles from the air or gas.Studies have shown that dust-capturing efficiency depends strongly on the ratio of spray drop size to dust particle size. Dust particles in the range of 2 to 3 microns were best captured with drops of about 100 times the size of the dust particles. For capturing much larger size dust particles, a drop size of approximately the same size or somewhat larger than the particle size would be adequate.The drop size required for a specific application has an important effect on nozzle selection.Furthermore, capturing airborne dust with water sprays is most effective in areas with little turbulence. Depending on the environment, enclosures may be required.
 
There are many variables to consider when specifying a spray system for dust control applications -
 
Dust particle size
Spray drop size
Spray pattern
Spray angle
Operating pressure
Surface wetting
Nozzle placement
Water quality and availability
Control options
 
These and many other factors, can have a significant impact on the overall performance and efficiency of a dust-control system. Working with a single supplier who is an expert in all facets of spray technology is the best way to ensure optimal dust control. We are uniquely qualified to be that supplier

 

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