公开(公告)号：WO2006091166A1

公开(公告)日：2006-08-31

申请号：PCT/SE2006/000257

申请日：2006-02-27

Applicant: STFI-PACKFORS AB ,  NORMAN, Bo ,  HERMANSSON, Lennart ,  SÖDERBERG, Daniel

Inventor： NORMAN, Bo ,  HERMANSSON, Lennart ,  SÖDERBERG, Daniel

IPC: D21F1/02 ,  D01F1/06

CPC classification number: D21F9/003 ,  D21F1/02 ,  D21F1/028

Abstract: Dewatering arrangement adapted to use in a twin-wire dewatering section of a stock processing machine, comprising a single-ply head box (4) for supplying stock through a nozzle (8) with an inlet (11 ) fed by a tube bank (6) with tubes (7) of non-circular cross- section, a closed loop first wire (2) adapted to receive the stock from the head box (4) on its upper surface and with pressure pulse generating blades (5) mounted inside the loop, a closed loop second wire (3) adapted to be fed on top of the first wire (2), and with pressure pulse generating blades (13) mounted inside the loop, thereby pressing the stock between itself and the first wire (2). The inlet height of the headbox nozzle (8), defined as the total tube bank height minus the total upstream thickness of eventual nozzle vanes (14), is at least 150 mm. By using a larger height of the headbox nozzle it is possible to lessen the risk of formation damages and also to use a higher slice opening, without formation disturbances. This in turn also gives better potential for paper strength and formation. The arrangement is suitable to both paper and paper board machines.

Abstract translation: 一种适于在原料加工机器的双线脱水部分中使用的脱水装置，包括用于通过喷嘴（8）供应原料的单层头箱（4），其具有由管组（6）供给的入口（11） ），具有非圆形横截面的管（7），适于在其上表面上从头箱（4）接收料料的闭环第一线（2）和安装在其内部的压力脉冲产生叶片（5） 环路，适于被馈送在第一线（2）的顶部上的闭环第二线（3）以及安装在环内的压力脉冲发生刀片（13），从而将本身与第一线（2）之间的坯料 ）。 流浆箱喷嘴（8）的入口高度（被定义为总管岸高度减去最终喷嘴叶片（14）的总上游厚度）至少为150mm。 通过使用较大高度的流浆箱喷嘴，可以减少地层损伤的风险，并且还可以使用较高的切片开口，而不会形成地层扰动。 这又为纸张强度和形成提供了更好的潜力。 这种布置适用于纸张和纸板机器。

公开(公告)号：WO2006091165A1

公开(公告)日：2006-08-31

申请号：PCT/SE2006/000256

申请日：2006-02-27

Applicant: STFI-PACKFORS AB ,  NORMAN, Bo ,  HERMANSSON, Lennart

Inventor： NORMAN, Bo ,  HERMANSSON, Lennart

IPC: D21F1/36 ,  D21F9/00

CPC classification number: D21F1/483 ,  D21F9/003

Abstract: Dewatering arrangement adapted to use in a twin-wire dewatering section of a paper machine, comprising a rotating forming roll, a head box for supplying stock arranged before the forming roll, a closed loop first wire adapted to, be partly wrapped around the forming roll to a separation line where its contact with the forming roll ceases, and to receive the stock from the head box on its surface not facing the forming roll, a closed loop second wire adapted to be partly wrapped around the forming roll on top of the first wire thereby pressing the stock between itself and the first wire, a first blade, substantially parallel with the forming roll, is arranged to support the lower side of the wire after the separation line of the forming roll and is arranged such that the tip of the blade is directed against the wire transporting direction, The distance from the separation line to the blade is less than 100 mm. By supporting the wire close to the forming roll movement of the first wire is suppressed, thus reducing unwanted effects like sheet damages.

Abstract translation: 适于在造纸机的双网脱水部分中使用的脱水装置，包括旋转成型辊，用于供应布置在成形辊之前的坯料的头箱，适于部分地缠绕在成形辊周围的闭环第一线 到其与成型辊的接触停止的分离线，并且在其不面向成形辊的表面上从头箱接收原料;闭环第二丝线，适于在第一 电线从而按压本身与第一线之间的原料，与成形辊基本平行的第一刀片被布置成在成形辊的分离线之后支撑线的下侧，并且布置成使得尖端 刀片相对于电线输送方向被引导。从分离线到刀片的距离小于100mm。 通过支撑靠近第一线的成型辊运动的线被抑制，从而减少不利影响，如片材损坏。