CYCLONE
Conical construction that separates air and dust is called cyclone. The cyclone has very common use areas. The cyclone works as a pre-filter dust collector and decreases dust from the filter in the systems where is more of dust load.
WORKING PRINCIPLE
When air and dust mixture enters in the system, it slows down due to the growth of the section and makes vortex motion. Thus, mixture is subjected to phase change and dust falls through gravity and centrifugal.