FILTER Russian patent published in 2017 - IPC B01D29/41 B01D25/26 

FIELD: machine engineering.

SUBSTANCE: filter contains a housing, a carrier tube and working modules inside the housing, fixed across the carrier tube. Each of the working modules comprises the first and the second filter bag located at a distance from each other, each of which is provided with two filter elements and a rigid spacer located therebetween. The filter elements and spacers of the bags are provided with coaxial cutouts. The cutout size of the internal filter elements of the working module packages is selected by the large size of the notches in the spacers. The outer edges of the filter elements and the spacers of each of the filter bags are attached to each other by an outer belt, the inner edges of the internal filter elements of the filter bags of the opposite type are connected to each other by an internal belt. The cavity of the working module, located between the inner belt and the supporting tube, is made communicating with the cavity of the carrier tube. Herewith the filter elements and spacers of each of the working modules are made of a porous mesh material. Filter elements are made of porous mesh material based on fine-meshed, and spacers - on coarse meshes.

EFFECT: increasing the service life of the filter, reducing the hydraulic resistance of the filter.

7 cl, 7 dwg