| 摘要 |
1. A vibratory sifter, fitted with a riddle with an elastically suspended screen, and with vibrators, characterised in that on two opposite walls (4 and 5) of the riddle (1), whereas those riddle walls are perpendicular to the screen (2) plane and parallel to the sieve (1) symmetry vertical plane, two vibrators (6 and 7) are joint-attached, with exciting force lines intersecting in the gravity centre (C) of the sieve, whereas above or under the sieve (1) in the symmetry axis thereof, a central vibrator (8) is located.<IMAGE>
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