Patent ID: 9446342
Filing Date: 2016-09-20
CPC Classification: B01D

Claim Text:
1. A particle separator screen based on a cyclone induced sweeping flow, comprising: a cyclone separation vessel consisting of an inlet port with a converging nozzle in an upper part of a vertical cylindrical vessel, a cylindrical separation area, a conical collector cone with a particulate outlet port at the bottom of the separation vessel, and an outlet port at the top of the separation vessel; a separator screen comprising of a plurality of parallel, grid-like evenly spaced and asymmetrically profiled, linear screen elements arranged in a parallel with the axis of the cyclone's cylindrical separation area and conical collector cone of the cyclone separation vessel; wherein the linear screen elements comprised an asymmetrically profiled wedge bar screen comprised of a plurality of wedge bars used for sweeping flow assisted inertial separation of suspended particles in a fluid, wherein the profile of the wedge bars is a generalized trapezoid, tilted in the direction of the sweeping flow with a distinctly extended trailing edge at the aft face side of the cross section of the wedge bars which is immediately followed with a smooth, plane or curved, side wall with no protrusion into a gap between two adjacent wedge bars and wherein the trailing edge is protruding with a pointed edge into a tangential flow-pattern of the fluid and wherein the trailing edge induces a flow separation and creates localized eddies on the suction side of the trailing edge that shape highly curved fluid streamlines and thus creates the centrifugal forces required for inertial separation and wherein the gap is larger than the size of the particle separated from fluid; wherein the separator screen is coaxially mounted inside of the cyclone separation vessel and the inlet port converging nozzle is extended into the separator screen such that the gap between two adjacent linear elements of screen provides for a fluid mixed with particles entering the separator screen tangentially through the inlet port to flow through the separator screen.