| 摘要 |
<p>A sieve for separating a mixture of particulate material (P) in one or more components of different partical sized, which sieve device is provided with a number of pairs of sieve decks (7, 30), which join each other in a radially outward direction and are rotatable around the same rotation axis and are arranged on top of each other, of which at least the outer parts of each pair are shaped as a hollow cone with a downwardly directed top, whereas below the sieve decks (7, 30) one or more guides (5) for the separate removal of fine and coarse components are arranged, and in which in the middle of each sieve deck a cone shaped distributor (8) with an upwardly directed top is mounted and the supply of the product (P) to be processed takes place adjacent to the centre via a movable inlet tube (4) which is arranged in the upper lid (3) of the body (1, 2) of the sieve device above the cone shaped distributor (8), of which inlet tube the diameter is substantially equal to the diameter of the basis of the cone shaped distributor. According to the invention the inlet tube (4) of the upper sieve deck (7) is movable between a sieve position and a by-pass position. <IMAGE></p> |
