STOFFAUFLAUF FÜR EINE MASCHINE ZUR HERSTELLUNG EINER FASERSTOFFBAHN
    1.
    发明公开
    STOFFAUFLAUF FÜR EINE MASCHINE ZUR HERSTELLUNG EINER FASERSTOFFBAHN 有权
    STOFFAUFLAUFFÜREINE MASCHINE ZUR HERSTELLUNG EINER FASERSTOFFBAHN

    公开(公告)号:EP2446083A2

    公开(公告)日:2012-05-02

    申请号:EP10718128.1

    申请日:2010-04-26

    申请人: Voith Patent GmbH

    IPC分类号: D21F1/02

    CPC分类号: D21F1/02 D21F1/028

    摘要: The invention relates to a headbox (1) for a machine for producing a fiber web (2), particularly a paper, cardboard, or tissue web, from at least one fibrous suspension (3), having a headbox nozzle (8) comprising an upper nozzle wall (4) and a lower nozzle wall (5) and two side walls (6), said headbox being tapered to form an outlet (9), and having an inner chamber (7), through which the fibrous suspension (3) flows in a flow direction (S) during the operation of the headbox (1). On the upper nozzle wall (4) of the headbox nozzle (8), a baffle (11) is arranged on the outlet side, which is slidable by way of several elements (10), and which extends across the machine width (B). Said baffle is provided with a baffle protrusion (A) and a baffle immersion depth (T), and has at least two surfaces touched by a fibrous suspension (3), an upstream stopping surface (12), and a subsequent main surface (13) during operation of the headbox (1). The headbox (1) according to the invention is characterized in that, between the stopping surface (12) of the baffle (11) and the main surface (13) of the baffle (11), at least one refraction surface (17) touched by the fibrous suspension (3) during the operation of the headbox (1) is provided on the baffle (11).

    摘要翻译: 本发明涉及一种用于从至少一个纤维悬浮液(3)生产纤维幅材(2),特别是纸张,纸板或薄纸幅的机器的流浆箱(1),其具有流浆箱喷嘴(8) 上喷嘴壁(4)和下喷嘴壁(5)以及两个侧壁(6),所述流浆箱成锥形以形成出口(9),并具有内室(7),纤维悬浮液 )在流浆箱(1)的操作期间沿流动方向(S)流动。 在流浆箱喷嘴(8)的上部喷嘴壁(4)上,出口侧上设置有挡板(11),挡板(11)可通过多个元件(10)滑动并穿过机器宽度(B) 。 所述挡板设置有挡板突起(A)和挡板浸入深度(T),并且具有由纤维悬浮体(3),上游止动表面(12)和随后的主表面(13)接触的至少两个表面 )在流浆箱(1)的操作期间。 根据本发明的流浆箱(1)的特征在于,在挡板(11)的止动表面(12)和挡板(11)的主表面(13)之间,触及至少一个折射表面(17) 在流浆箱(1)运行期间由纤维悬浮液(3)提供在挡板(11)上。