NOVELTY - The device (50) has a suction-recirculation loop (38) comprising a suction fan (34) and ducting (32) provided for sucking air out of a insulated receiver box (12) through a first array of holes (30) in a back wall and for recirculating and reintroducing the air back into the box through a second array of holes (42) in a top surface ceiling (22). Recirculating air flow creates a sweeping air flow inside the box. A cyclone separator (36) is arranged downstream/upstream of the suction fan. A third array of holes perforates an upper aperture front wall section (24).    USE - Suction-recirculation device for stabilizing particle flows e.g. curtain of blackened heat absorption particles flows, within a solar powered solid particle receiver against external winds blowing at oblique angle in a solar power tower.    ADVANTAGE - The suction-recirculation loop comprising the suction fan and ducting provided for sucking air out of an insulated receiver box through the first array of holes in the back wall and for recirculating and reintroducing the air back into the box through the second array of holes in the ceiling. The recirculating air flow creates sweeping air flow inside the box so as to stabilize particle curtain from disruption by external winds blowing into the box at oblique angle. The device is designed such that the air is recirculated back to the top of the receiver by injecting the recycled air through the small holes in the receiver's ceiling and an upper aperture front wall and the internal air is recirculated, so that the heat losses are minimized and high receiver efficiency is maintained. The device is designed such that suction-recirculation velocities in the range of 1-5 m/s are sufficient to stabilize the particle curtain against external wind speeds in excess of 10 m/s.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for stabilizing particle flows within a solar powered solid particle receiver against external winds blowing at oblique angle.    DESCRIPTION OF DRAWING(S) - The drawing shows a side elevation cross-section view of a solid particle receiver for a solar power tower.    Insulated receiver box (12)    Top surface ceiling (22)    Upper aperture front wall section (24)    Holes (30, 42)    Ducting (32)    Suction fan (34)    Cyclone separator (36)    Suction-recirculation loop (38)    Suction-recirculation device (50)