| 摘要 |
An impeller (1; 20) for paper pulp kneaders is disclosed comprising an essentially plan bottom flange (2) connectable to driving means, a central shaft (4) which starts from the plane (K) defined by the bottom flange (2) in order to determine a longitudinal spin axis (X) of the impeller (1); one or more blades (5; 21) cross-wound around said central shaft (4). Each blade (5) has an ending section (6) connected to the bottom flange (2), where there is a toothing (7) on its peripheral edge (6a), which is delimited between: a first point (8) that corresponds to the intersection between the peripheral edge (5a) of the blade (5) and the peripheral edge (6a) of the ending section (6); a second point (9) that corresponds to the intersection between the peripheral edge (6a) of the ending section (6) and the bottom flange (2).
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