HIGH EFFICIENCY TRUNCATED VORTEX FINDER IN A CYCLONE FOR FLUIDIZED BED BOILERS

摘要

A high efficiency truncated vortex finder in a cyclone for fluidized bed boilers, comprising a member (5) having a circular/rectangular/regular shape at the cross section (1) with supporting structures disposed along the length (2), and arranged with a provision of eccentricity, axial and rotational adjustment in the roof of a cyclone (3); a duct connecting a plurality of cyclones (3) at an outlet (4), the member (5) being incorporated in a FBC boiler (6), wherein the truncated vortex finder is configured such that a profile of the vortex generated due to the centrifugal action of the cyclone allows a translational and/or a rotational movement to generate a variation in the air-flow resistance through the exit of the cyclone.