DEVICE OF BED FLUIDIZES HAS FAST FLUIDIZATION AND HAS FLOW SATURATES WITH CIRCULATING SOLIDS

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The invention relates to an engine (1) for circulating fluidized bed comprising an enclosure (10) appreciably cylindrical of polyhedric section, a high part (11) of connection at the entry of a cyclone (2) of separation of the solids and a low part (12) of connection to a control (4) of exit of the solids of the known as cyclone. According to the invention, the aforementioned pregnant (10) comprises profiles of Re-mixture (13) in the shape of internal annular veins distributed on at least part of its height.