公开(公告)号：US06197157B1

公开(公告)日：2001-03-06

申请号：US09022549

申请日：1998-02-12

申请人： Rudolf Hasenfuss ,  Joachim Grabscheid ,  Christian Schiel ,  Wolfgang Schuwerk

发明人： Rudolf Hasenfuss ,  Joachim Grabscheid ,  Christian Schiel ,  Wolfgang Schuwerk

IPC分类号： D01F304

CPC分类号： D21F3/045 ,  D21G1/00 ,  F26B13/28

摘要： A press device for draining and/or smoothing, or shaping the surface and controlling the sheet structure of fibrous pulp webs with a surface weight of under 100 g/m2, such as the fibrous pulp webs used to make graphic papers. The device has a press area which includes at least one press nip through which, during operation, the fibrous pulp web is fed at a velocity of at least 1200 m/min, under simultaneous impingement by pressure. The press area includes at least two press zones subsequent to one another. The device is further characterized by a K value of at least 2.5 kPa·s·m. This K value is the product of L1 and Itot. L1 is the length of the first press zone, measured along the direction in which the web runs, and Itot is the total press impulse operating on the fibrous pulp web in the entire press area.

摘要翻译： 用于排出和/或平滑化或成形表面并且控制表面重量低于100g / m 2的纤维纸浆幅片的片状结构的压榨装置，例如用于制造图形纸的纤维纸浆网。 该装置具有压榨区域，其包括至少一个压榨压区，在操作期间，纤维纸浆幅材以至少1200m / min的速度在压力同时冲击下进给。 按压区域包括彼此之间的至少两个按压区域。 该装置的特征还在于K值至少为2.5kPa·s·m。 该K值是L1和Itot的乘积。 L1是沿着纸幅运行方向测量的第一挤压区的长度，Itot是在整个印刷区域中在纤维纸浆网上操作的总压力冲击。