KOCHETOV'S TWO-STAGE VORTEX DUST-CATCHING SYSTEM Russian patent published in 2013 - IPC B04C9/00 

FIELD: process engineering.

SUBSTANCE: invention relates to dust separation. Proposed system comprises cyclone making first cleaning stage that has case, peripheral inlet of flow, cover, bin, cleaned gas outlet branch pipe with filtration element that makes second cleaning stage. Said case is composed of two different-diameter cylindrical parts. Gas axial inlet represents rectangular bend with outer part communicated with axial inlet branch pipe and inner part arranged in symmetry about said case and comprises tapered cylinder nose cone arranged there inside and aligned therewith. Tapered turnback washer is arranged outside rectangular bend inner part. Filter incorporates temperature gage arranged in filtration section case. Dust collection bin is proved with dust emergency level pickup. Filtration section outlet box accommodates automatic thermal warning pickup. Filtration section outlet box accommodates manifold with nozzles to be connected to firefighting system. Filter regeneration system comprises valve units incorporating solenoid valves, pulse valves with pulse tubes and branch pipes, Venturi nozzles and differential pressure gage.

EFFECT: higher efficiency and reliability, reduced metal input and vibroacoustic activity.

5 dwg