DUST COLLECTION SYSTEM Russian patent published in 2009 - IPC B01D45/12 B04C3/00 B04C9/00 

FIELD: technological processes.

SUBSTANCE: invention concerns gas treatment and can be applied in removal of fine-dispersed particles from waste gas in chemical, food and woodwork industry, construction material and article production and other spheres. Dust collection system includes source of gas to be cleaned, fan, pipes and two dust collectors at oncoming swirl gas flows. Each dust collector has form of cylindrical case with conical tank, top tangential inlet, inlet swirler in bottom inlet pipe, and conical disc deflecting dust at the outer surface of collector, with axial outlet pipe for cleaned gas and dust discharge pipe in which floodgate is mounted. System features injector including inlet and outlet pipes and side pipe for cleaned gas suction, separation concentrator including inlet chamber with tangential inlet, cylindrical swirl chamber, and axial pipe for discharge of gas flow with reduced dust concentration. Conical tank of first dust collector has dust and gas mix discharge pipe, and dampers are installed in pipes. Source of gas to be cleaned is connected to fan inlet, fan supercharge pipe is connected to tangential inlet pipe of first dust collector and side pipe of injector. Outlet pipe of injector is connected to inlet swirler of first dust collector, axial cleaned gas outlet pipe of which enters open air. Dust and gas mix discharge pipe of conical tank is connected to tangential inlet pipe and inlet swirler of second dust collector, axial outlet pipe of which is connected to tangential inlet of separation concentrator. Axial concentrator pipe is connected to injector inlet pipe, and its side pipe is connected to the fan inlet.

EFFECT: improved efficiency of treatment of dusted gas containing fine-dispersed particles.

2 cl, 1 dwg, 1 ex