FIELD: gas cleaning. SUBSTANCE: device has body with process branch pipes, vortex tube with screw swirler, chamber for accumulation of settles impurities and gas discharge chamber. Installed at outlet of vortex tube is hollow cylindrical-conical displacing member with screw slot on conical part and screw groove on cylindrical part to increase quality of gas cleaning. Screw groove communication periphery part of vortex tube with chamber for accumulation of settles impurities. Walls of vortex tube and displacing member have combined holes communicating displacing member cavity with gas discharge chamber. EFFECT: higher quality of gas cleaning. 8 cl, 4 dwg
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