| 摘要 |
PCT No. PCT/FI96/00396 Sec. 371 Date Jan. 5, 1998 Sec. 102(e) Date Jan. 5, 1998 PCT Filed Jul. 4, 1996 PCT Pub. No. WO97/03246 PCT Pub. Date Jan. 30, 1997Suction box for a machine producing a web containing cellulose fibers, said suction box being placed inside a rotating suction roll (2) provided with a perforated jacket (1), said suction box (3) comprising a suction chamber (4) having a suction inlet (6) placed against the interior surface (5) of the suction roll and a suction connection (7) for creating a negative pressure in the suction chamber and sucking water through the perforations (8) in the suction roll into the suction chamber. The suction inlet (6) is provided with ribs (10) laid in a direction transverse to the direction of rotation (9) of the suction roll (2) and forming suction slits (11) in the longitudinal direction of the suction roll near the interior surface (5) of the suction roll. |
