| 摘要 |
<p>A crushing plant for crushing coarse material, e.g. forest waste material, demollition wood waste, garbage and the like, in series comprises a coarse crusher (1), a sieve (20, 20') which accepts material fractions of a desired size and feeds non-accepted material to the fine crusher (30), which grinds the coarsely crushed material, which has not been accepted by the sieve, into the desired size. A conveyor (10) is preferably provided between the coarse crusher (1) and the sieve (20) for controlling the flow of material to the sieve. After the sieve there is preferably provided a device (23, 23') for ballistic separation of heavier contaminants before the feeding into the fine crusher (30). Magnetic material possibly remaining in the fine fractions obtained can be separated magnetically (42), when necessary.</p> |
