Screen comprising a plurality of stacked decks and means for vertically separating the decks from one another

摘要

A screen including a plurality of decks vertically stacked above one another, at least one of the decks bearing at least one sieve, the screen including means for vertically separating the decks from one another, suitable for selectively adjusting a vertical distance between each deck of the plurality of decks and at least one other deck of the plurality of decks.