Headbox for a paper machine
    1.
    发明授权
    Headbox for a paper machine 失效
    造纸机的流浆箱

    公开(公告)号:US5549792A

    公开(公告)日:1996-08-27

    申请号:US273903

    申请日:1994-07-12

    IPC分类号: D21F1/02 D21F1/06 D21F1/08

    摘要: A headbox for a paper machine is characterized by having: at least one machine-wide channel region which defines a main direction of flow; a region for the production of turbulence; a plurality of feed lines distributed over the machine width and discharging into the headbox channel region; an adjusting device in each feed line for controlling the quantity of flow; an angle .alpha. between the main direction of flow and the feed line; and the angle .alpha. being selected in such a manner that, regardless of the amount fed by the feed line, the total volumetric flow in the region directly downstream of the feed line remaining constant.

    摘要翻译: 造纸机的流浆箱的特征在于具有:限定主要流动方向的至少一个机器通道区域; 一个生产湍流的地区; 分布在机器宽度上并排放到流浆箱通道区域中的多个进料管线; 每个进料管线中的调节装置,用于控制流量; 主流动方向与进料管线之间的角度α; 并且以这样的方式选择角度α,即,不管由进料管线供给的量如何,直接在进料管线下游的区域中的总体积流量保持恒定。

    Multiply headbox nozzle with heavy end convergence
    3.
    发明授权
    Multiply headbox nozzle with heavy end convergence 失效
    倍增流浆箱喷嘴具有重端收敛

    公开(公告)号:US5804037A

    公开(公告)日:1998-09-08

    申请号:US735895

    申请日:1996-10-23

    IPC分类号: D21F1/02 D21F9/00

    CPC分类号: D21F1/028 D21F1/02 D21F9/006

    摘要: A nozzle of a multilayer headbox wherein the headbox includes a nozzle for distributing the stock suspension on a wire. The nozzle is subdivided by at least one machine-wide fin, the fin forming with the nozzle at least two machine-wide nozzle ducts. At least the mean value of the clearance of at least one nozzle duct diminishes steadily in the flow direction, the percentage decrease of the clearance in the fluidically essential area of the nozzle being at least twice as large as in the starting area of the nozzle.

    摘要翻译: 多层流浆箱的喷嘴,其中流浆箱包括用于将原料悬浮液分布在丝线上的喷嘴。 喷嘴由至少一个机器宽的翅片细分,与喷嘴形成的翅片至少有两个机器宽的喷嘴管道。 至少一个喷嘴管道的间隙的平均值至少在流动方向上稳定地减小,喷嘴的流体必需区域中的间隙的百分比减小至少是喷嘴起始区域的两倍。

    Headbox nozzle with heavy end convergence
    4.
    发明授权
    Headbox nozzle with heavy end convergence 失效
    具有重端收敛的流浆箱喷嘴

    公开(公告)号:US5599428A

    公开(公告)日:1997-02-04

    申请号:US273808

    申请日:1994-07-12

    IPC分类号: D21F1/02 D21F9/00

    CPC分类号: D21F1/028 D21F1/02 D21F9/006

    摘要: A nozzle of a multilayer headbox wherein the headbox includes a nozzle for distributing the stock suspension on a wire. The nozzle is subdivided by at least one machine-wide fin, the fin forming with the nozzle at least two machine-wide nozzle ducts. At least the mean value of the clearance of at least one nozzle duct diminishes steadily in the flow direction, the percentage decrease of the clearance in the fluidically essential area of the nozzle being at least twice as large as in the starting area of the nozzle. The fin has downstream end area of decreasing thickness immediately preceded by an area of increasing thickness.

    摘要翻译: 多层流浆箱的喷嘴,其中流浆箱包括用于将原料悬浮液分布在丝线上的喷嘴。 喷嘴由至少一个机器宽的翅片细分,与喷嘴形成的翅片至少有两个机器宽的喷嘴管道。 至少一个喷嘴管道的间隙的平均值至少在流动方向上稳定地减小,喷嘴的流体必需区域中的间隙的百分比减小至少是喷嘴起始区域的两倍。 翅片具有下降的减小厚度的面积,紧接在厚度增加的区域之前。

    Paper machine headbox and method of controlling pulp material parameters
    5.
    发明授权
    Paper machine headbox and method of controlling pulp material parameters 失效
    纸机流浆箱和纸浆材料参数控制方法

    公开(公告)号:US5466340A

    公开(公告)日:1995-11-14

    申请号:US240878

    申请日:1994-05-11

    IPC分类号: D21F1/02 D21F1/08

    CPC分类号: D21F1/02

    摘要: A paper machine headbox having divided sections for feeding pulp suspensions with different properties therethrough includes a single inlet line and a plurality of feed lines connected thereto. In at least one of the feed lines, there is a separation device which separates certain pulp suspension components from the pulp suspension flowing therethrough. A discharge line connected to the separation device conveys separated pulp suspension components therefrom. A continuing feed line connected to the separation device conveys the remaining pulp suspension to the headbox.

    摘要翻译: 具有用于供给具有不同性质的纸浆悬浮液的分割部分的造纸机流浆箱包括单个入口管线和与其连接的多个进料管线。 在至少一个进料管线中,存在分离装置,其将某些纸浆悬浮组分与从其流过的纸浆悬浮液分离。 连接到分离装置的排出管路输送分离的纸浆悬浮液成分。 连接到分离装置的连续进料管将剩余的纸浆悬浮液输送到流浆箱。

    Headbox lamellae and method for reducing turbulence thereabout
    7.
    发明授权
    Headbox lamellae and method for reducing turbulence thereabout 失效
    流浆箱薄片和减少湍流的方法

    公开(公告)号:US5639352A

    公开(公告)日:1997-06-17

    申请号:US297315

    申请日:1994-08-29

    IPC分类号: D21F1/02 D21F1/06

    CPC分类号: D21F1/02 D21F1/028

    摘要: A method and apparatus for reducing turbulence in a pulp flow stream flowing through a paper making machine headbox includes providing lamellae disposed in a portion of the headbox. A lamella end portion is modified which provides for the flushing of a dead space formed in the wake of the lamella. The modified lamella end portion produces small flow channels which divide the pulp stream flowing past the lamella into a plurality of substreams and guides the substreams into the region of the dead space.

    摘要翻译: 用于减少流过造纸机流浆箱的纸浆流中的湍流的方法和装置包括提供设置在流浆箱的一部分中的薄片。 修改了薄片端部,其提供在层片的尾部形成的死空间的冲洗。 修改的薄片端部产生小的流动通道,其将流过薄片的纸浆流分成多个子流,并将子流引导到死空间的区域中。

    Method of homogenizing the constitution of a web of paper
    8.
    发明授权
    Method of homogenizing the constitution of a web of paper 失效
    使纸幅构成均匀的方法

    公开(公告)号:US5401363A

    公开(公告)日:1995-03-28

    申请号:US147622

    申请日:1993-11-05

    CPC分类号: D21F1/06 D21F1/02 Y10S162/11

    摘要: A method of manufacturing a web of fibers, especially a web of paper. The pulp is uniformly distributed through an outlet over the width of the machine and along a wire or between two wires. Most of the moisture is subsequently extracted from the pulp accommodated on or between the wires at a draining point. Various amounts of retaining agents are added to the pulp at sections across the headbox and the web in order to control the level of retention sectionally.

    摘要翻译: 一种制造纤维网,特别是纸幅的方法。 纸浆通过机器宽度上的出口均匀地分布,并沿着线或两根线之间分布。 大部分水分随后在排水点从容纳在电线之间或之间的纸浆中提取。 为了控制保留水平,各种量的保留剂被添加到纸浆在流浆箱和纸幅上的部分。

    Multi-layer headbox with plastic and metal divider plate
    9.
    发明授权
    Multi-layer headbox with plastic and metal divider plate 失效
    多层流浆箱采用塑料和金属分隔板

    公开(公告)号:US5849159A

    公开(公告)日:1998-12-15

    申请号:US801132

    申请日:1997-02-27

    IPC分类号: D21F1/00 D21F1/02 D21F9/00

    CPC分类号: D21F1/028 D21F1/02 D21F9/006

    摘要: A multi-layer headbox for the production of a multi-layer web of paper has, for instance, three flow planes (I, II, III), each having a pulp feed device (1.1, 1.2, 1.3). In each flow plane a turbulence generator (3) is provided which opens into a nozzle (4). In it there are two plates (5.1, 5.2) which keep two neighboring streams of slurry separate from each other up to the region of the exit slot (8). Each plate is developed as a flexurally soft plate of plastic, the downstream end of which is metal and has a thickness S of at most 0.3 mm. The plastic and metal have a different in coefficients of thermal expansion of

    摘要翻译: 用于生产多层纸网的多层流浆箱具有例如三个流平面(I,II,III),每个具有纸浆进料装置(1.1,1.2,1.3)。 在每个流动平面中,提供通向喷嘴(4)的湍流发生器(3)。 在其中有两个板(5.1,5.2),其保持两个相邻的浆料流彼此分离直到出口槽(8)的区域。 每个板被展开为柔性柔软的塑料板,其下游端是金属并且具有至多0.3mm的厚度S. 塑料和金属具有不同的热膨胀系数<10-71 / K。

    Device and method for the non-clogging throttling of a fluid stream of
suspended matter
    10.
    发明授权
    Device and method for the non-clogging throttling of a fluid stream of suspended matter 失效
    悬浮物流体流非阻塞节流的装置和方法

    公开(公告)号:US5709777A

    公开(公告)日:1998-01-20

    申请号:US794137

    申请日:1997-02-03

    摘要: The invention relates to a valve or throttling device for a fluid flow, and particularly a flow containing solids, like a flow of pulp suspension. The valve has the following features: A hollow body of substantially rotational symmetry, which is traversed by liquid; the hollow body has a variable passage area which is substantially of rotational symmetry; and a main direction of fluid flow which is substantially axial to the longitudinal axis of the hollow body is provided in the hollow body. A liquid feed to the passage area is provided so that a component of rotation around the direction of the main stream is added to the liquid with reference to the direction of the main stream.

    摘要翻译: 本发明涉及一种用于流体流动的阀门或节流装置,特别涉及一种含有固体的流动,如纸浆悬浮液流。 该阀具有以下特征:基本上旋转对称的中空体,其被液体横穿; 中空体具有基本上旋转对称的可变通道面积; 并且在中空体中设置有与中空体的纵向轴线基本轴向的流体流动的主要方向。 提供到通道区域的液体进料,使得围绕主流的方向的旋转分量相对于主流的方向被添加到液体。