Overview : Dust is mainly the equipment of separating dust from the flue gas. The performance of the dust collector can handle the amount of gas, gas through the resistance loss and the efficiency of dust control. Filter types including mechanical filter, static and wet dust collector, cyclone dust collector, filter cartridge dust collector, dust, etc. Commonly the filter used in removing dust project is divided into four categories. The dust catcher is rely on a variety of power separation and filtration of dust particles from the gas. Cyclone dust collector : Cyclone after adding bypass, its working principle is the dust from the inlet gas tangential into the air, while get the rotary motion of upper and lower separated form the twin twist worm activity, dust in twin twist worm boundaries produce strong separation effect. Coarser dust particles with backspin cochlear flow separation to the outer wall, some of the dust by the bypass separate room in the middle of the mouth of the cave leads, the rest of the dust ash hopper with the downdraft. Topspin worm airflow gathered for fine particles of dust, thus improve the dust removal efficiency. This part of the fine dust particles by topspin cochlear flow upwards, which forms part of a strong rotation on the dust under roof and with topspin worm airflow into the bypass separation chamber, the upper part of the hole through the inlet into the cone, and the internal flow convergence after purification of gas from the exhaust pipes, isolated from the dust into the hopper