Cyclones are separation devices (dry scrubbers) that use the principle of inertia to remove particulate matter from flue gases. Cyclone separators are one of many air pollution controllers known as pre-cleaners as they usually remove larger pieces of particulate matter. This prevents finer filtration methods from having to deal with larger, more abrasive particles later. Also several cyclone separators can operate in parallel and this system is known as multicyclone.It is important to note that the sizes of cyclones can vary greatly. The size of the cyclone largely depends on how much flue gas needs to be filtered, so larger operations tend to need larger cyclones.How does it work ?Cyclone separators work with a centrifugal mechanism. In a cyclone separator, dirty flue gas is fed into a chamber. The interior of the chamber forms a spiral vortex, similar to a hurricane. This helix formation and separation, The lighter components of this gas have less inertia, so they are easier to be affected by the vortex and move upwards. In contrast, larger components of particulate matter have greater inertia and are not easily affected by the vortex.