DUST EXTRACTION DEVICE WITH FILTER BAG Russian patent published in 2008 - IPC B04C9/00 

FIELD: motors and pumps.

SUBSTANCE: dust extraction device includes case, peripheral gas flow inlet, filtering element and dust collection tank, with peripheral gas flow inlet positioned in central device part and made in the form of inlet branch connected at right angle to cyclone element case with two coaxial branches. One coaxial branch carries filtering element in the form of filter bag, another branch carries dust collection tank in the form of dust collection bag. Cyclone element is made in the form of scroll-type case carrying ventilator with its axis parallel to axis of branches carrying filtering element and dust collection tank, and inlet branch is fixed coaxial to ventilator axis. The branch with dust collection tank holds an insert cylindroconical cartridge, conical part of which is a confuser or diffuser.

EFFECT: enhanced efficiency and reliability of dust extraction process, reduced metal consumption and vibroacoustic activity of whole device.

6 cl, 4 dwg