| 摘要 |
The present invention relates to a novel type of press apparatus for pressing/thickening pulp and the use thereof. A characterizing feature of an apparatus according to the invention is that the diameter of the front part (58) of the roll (52) is essentially larger than the diameter of the central part (52') of the roll, while the diameter of central part (52') the roll (52) is small in proportion to the diameter of the drum (51). According to the invention, the roll (52) can also be divided into several parts so that at least two parts of the roll (52) are provided with means for arranging different rotational speeds for the parts, when necessary. According to the invention, the apparatus can also comprise control wings (59) attached to the central part (52') of the roll to rotate with the roll (52), closure wings (61) arranged in the upper space (60) of the press and a shell (65) arranged outside the drum (51) for discharging vapor (66) and the filtrate (67) removed from the pulp through the drum (51) from the apparatus. The apparatus according to the invention is suitable for use as a press/thickener and washer in the pulp and paper industry. |
