| 摘要 |
<p>1. Apparatus for fluidising powder or granular material by the incorporation into this material of a gas under pressure, comprising a drum (14) of generally cylindrical external shape comprising, regularly spaced about its periphery, a series of cavities (17) arranged according to the generatrices and bounded by blades (16), and rotationally mounted and capable of being put into rotation about a longitudinal axis in a cylindrical portion (4) of circular section co-axial to the drum (14) on the longitudinal axis of a body (1) having at its upper part a filling aperture (11) for the material to be fluidised and closed by two lateral plates (2, 3) each having an opening (29, 30) of which one constitutes the feed opening of gas under pressure and the other the outlet opening for fluidised material, in such a fashion that the material which fills the cavities (17) successively passing the face of the filling opening (11) is fed in an axial chamber defined between the openings (29, 30) of the side plates (2, 3) by the successive passage of the cavities (17) across these openings (29, 30), the side surface of the cylindrical part (4) having an opening (5) extending parallel to the generatrices over a circular sector at least equal to 90 degrees and such that an inclined wall (8) the upper end (12) of which defines a longitudinal edge of the filling opening (11), displaced to one side of the vertical plane passing through the axis of rotation of the drum (14) meets tangentially with the cylindrical part (4) at the level of one of the longitudinal edges of its opening (5), characterised in that the other longitudinal edge of the opening (5), disposed on or in the neighbourhood of the vertical plane passing through the axis of rotation of the drum (14) constitutes the downstream edge (6) in the sense of rotation of the drum (14) of the filling opening (11), the upstream edge of which is defined by the upper end (12) of the inclined wall (8), the filling opening (11) being displaced to the side where the blades (16) move towards the upper part of body (1).</p> |
