MULTIPLE-CYCLONE DUST SEPARATING APPARATUS Russian patent published in 2007 - IPC A47L9/00 E01H1/00 

FIELD: mechanical engineering, in particular, multiple-cyclone dist separating or dust catching equipment.

SUBSTANCE: multiple-cyclone dust separating apparatus has casing of first cyclone chamber, said casing comprising first cyclone chamber and one protective chamber formed around part of outer circumferential surface of first cyclone chamber, cover unit, contaminant particle collecting device, and air discharge channel. Protective chamber has casings of secondary cyclone chambers. Casing of each secondary cyclone chamber comprises one secondary cyclone chamber. Cover unit directs air delivered from first cyclone chamber into second cyclone chambers. Contaminant particle collecting device is joined to lower end of multiple-cyclone device and is configured for collecting of contaminant particles separated from air flow in first chamber and secondary cyclone chambers. Air discharge channel is configured for discharge of air passed through multiple-cyclone device.

EFFECT: increased efficiency and simplified construction of multiple-cyclone dust collecting apparatus.

20 cl