| 摘要 |
Improvements of riddling devices of urban solid waste where, outside the riddling cylinder, a few reeds, both continuous and discontinuous, are applied, overhanging with respect to the same riddling cylinder and of such a height which is proportional to the dimensions of the holes, with the reeds having, preferably, a longitudinal orientation and being they, furthermore, orthogonal with respect to the external surface of the cylinder or being they slightly inclined with respect to the radial direction in a direction opposite to the direction of rotation of the riddling cylinder.
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