| 摘要 |
<p>An apparatus (10) is disclosed for removing ash from repulped wastepaper which contains ash together with cellulosic fibers. A porous belt (20) is supported by and extends around a plurality of rolls (14-17) to define an endless loop (22). A headbox (26) is disposed within the endless loop (22), and adjacent to a screening portion (24) for ejecting the repulped wastepaper through the screening portion (24). A drainage device (30) is disposed on the opposite side (32) of the screening portion (24) relative to the headbox (26) for receiving ash passing through the screening portion. A shower (34) is disposed adjacent to the cylindrical outer surface (18) of the downstream roll (15) for dislodging cellulosic fibers (36) separated from the ash between the headbox (26) and the downstream roll (15) such that the fibers (36)follow the cylindrical outer surface (18) when the belt (20) diverges relative to the outer surface. A doctor (38) is disposed adjacent to the outer surface (18) for doctoring the fibers (36) from the outer surface (18) of the downstream roll (15). A transverse conveyor (40) is disposed adjacent to the outer surface (18) for conveying the fibers (36) transversely relative to the belt (20) so that the fibers separated from the ash can be subsequently used for forming a reprocessed web.</p> |
