Cyclone

Cyclones are generally used in following case:
1- when the dust load of inlet air to bag filter are more than their capacity cyclone is used for decreasing the dust load before bag filter.
2- when particle suspension in air have over volumetric mass which causes settletion of particles. 
3-when particle suspension are large.
Cyclone dusters has the ability to absorb particles the minimum dimension of which are more than 20 micron and small particle are usually discharged with outlet air. In general cyclone efficiency is limited to 80% that It depends on various parameters such as a quantity and dimension of particle suspension, air speed and dimension. When air volume for filtration is high, they use several parallel cyclones .The presure drop in this machine is limited to 80-150mmH2o . speed filtration in surface of the section(vertical flow air part) is usually selected between 2-4.5m/s.