DUST TRAP Russian patent published in 2006 - IPC B04C3/00 B01D45/12 

FIELD: cleaning gases.

SUBSTANCE: dust trap comprises a set of rigidly interconnected cyclones. Each of the cyclones is made of cylindrical housing with blade swirler axially mounted inside at the inlet of the housing and discharging branch pipe at the outlet of the housing. The body of the swirler of each cyclone is droplet-shaped, and the blades are inclined to its axis at an angle of 60°. The swirlers of the cyclones can be provided with eight blades. The discharging branch pipe of the cyclone is mounted inside the housing at a distance from the blades that is equal to the diameter of the housing and is made of a cylinder-cone whose cone angle is equal to 7°. The base of the conical part of the discharging branch pipe is in coincidence with the housing outlet and tightly abuts against the housing walls. The dust-trapping hopper underlies the discharging branch pipe of each cyclone.

EFFECT: enhanced quality of cleaning and reduced hydraulic drag.

3 cl, 4 dwg