TWO-STAGE DUST COLLECTION SYSTEM WITH SPIRAL-AND-CONIC CYCLONE Russian patent published in 2010 - IPC B04C9/00 

FIELD: mechanics.

SUBSTANCE: invention is related to dust collection machinery. The dust collection system contains a cyclone representing the first decontamination stage and a hose filter representing the second stage. The spiral-and-conic cyclone contains a housing consisting of a cylindrical and a conic parts, a spiral gas flow inlet, a dust removal hole and an exhaust pipe. The acoustic dust coagulation system is connected to the cyclone spiral gas flow inlet via an air duct and consists of an acoustic speaker in the upper cylindrical part whereof, coaxial whereto, an acoustic generator is mounted connected to the control unit. The hose filter filtering chamber is shaped as a cabinet with side doors for removal of vertically position filtering elements represented by filtering hoses. The hose filter is equipped with a temperature sensor mounted inside a housing; mounted inside the dust collection bin is an emergency dust level sensor; mounted inside the filtering section outlet box is an automatic thermal annunciator sensor. The above sensors outputs are connected to the governing controller. In the filter filtering section outlet box a manifold is mounted with nipples for connection to the fire extinguishing system whose control unit is connected to the governing controller.

EFFECT: improved efficiency and reliability of the dust collection process.

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