DUST TRAP FAN Russian patent published in 2017 - IPC B01D45/12 B01D50/00 B04C9/00 

FIELD: machine engineering.

SUBSTANCE: dust trap fan includes a body with inlet and outlet nozzles, respectively, for gas supply and discharge, divided by transverse annular partitions into at least two annular chambers. In the annular chambers on the common rotation axis, there are the blade wheels containing the front annular and rear solid discs arranged in series. The front circular wheels of the blade wheels are located in the central holes of the transverse annular partitions. Each transverse annular partition is made convex towards the gas flow, mating near the central opening tangentially to the inner surface of the corresponding front annular disc. In this case, the mating surfaces of the transverse annular partition and the front annular disc of the blade wheel contain seals of contactless type or contact type.

EFFECT: increase the edust trap fficiency in combination with lower energy costs for transportation of cleaned gases.

8 cl, 6 dwg