| 摘要 |
<p>A method of pulping baled waste material includes breaking up the bale and applying the broken bale to a fluffer or shredder (18) to form a fluffed or shredded waste paper product containing heavy and light contaminants. This product is applied to an air separator (20) from which heavier non-paper contaminant fraction is removed, and the remaining product is applied to the inlet of a vortex separator (30) which removes a light reject fraction and forms a second accepts fraction. The second accepts fraction is water soaked and applied to the inlet of a series of drum-type pulpers (55). The invention further includes a drum-type pulper (60) in which an axial shaft has radially-extending buckets (100) which dip into a pool of waste paper stock in which the buckets sweep the interior of the drum, lift a quantity of the stock from the pool, and allow the stock to drop back into the pool. Vanes (130) on the buckets cause the stock to move axially in the drum from an inlet (80) at one end to an outlet (82) at the opposite end.</p> |
