DUST EXTRACTOR DEVICE WITH FILTER CASSETTE Russian patent published in 2008 - IPC B04C9/00 B01D46/00 

FIELD: motors and pumps.

SUBSTANCE: dust extraction device includes case, peripheral gas flow inlet, filtering element and dust collection tank. Peripheral gas flow inlet is 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. Filtering element is made in the form of filter cassette of crimp-type folded filtering paper, positioned in wire frame. Filter cassette includes recovery unit in the form of at least two plates fixed rigidly on a shaft coaxial to filter and driven by a drive mounted in upper part of wire filter frame and consisting of electric motor and redactor. Plates enter crimp grooves not deeper than at 25% of crimp height.

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

6 cl, 6 dwg