Dust Collection System (extraction)



A dust collection system is an air quality improvement system used in industrial, commercial and home production shops to improve breathable air quality and safety by removing particulate matter from the air and environment. Dust collection systems work on the basic formula of capture, convey and collect. De-dusting or Dust collection is the most diverse market for industrial centrifugal fans from small fume exhaust installations to heavy duty applications using high kW motors, de-dusting requires high static pressure depending on the size of particles with a broadest variety of fan types.


Functioning principles:
1) The system can work as a pressure-type system, with dust or particles moving through the fan (typical of wood industries / workshops).

2) The system can work as a depression-types system, where particles are eliminated either through a simple kiln where the fan is often directly mounted on top of the cyclone, or through a more complex system with compartments inside the filter, relayed by the introduction of air to eliminate airborne particles.

The technical characterises 
In pressure-type systems, like in the wood industry, as all particles travel directly through the fan, the impeller must be equipped with radial blades (T-type Blades), and very often mounted without any shroud, to avoid particles becoming attached within the fan. Robustness of the fan and material thickness are important elements of fan design. Fans located after the cyclone and/or within filtering systems, can have backward inclined, airfoil or flat blades due to the clean air environment. The most important characteristics of the fan are low noise levels and high efficiency so users get the best performance from the installation, avoiding the use of silencers or acoustic insulation.

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