Drying section of a paper machine
    21.
    发明授权
    Drying section of a paper machine 失效
    造纸机的干燥部分

    公开(公告)号:US5770015A

    公开(公告)日:1998-06-23

    申请号:US583047

    申请日:1996-04-09

    IPC分类号: D21F1/50 D21F5/04 F26B11/02

    CPC分类号: D21F5/042 D21F5/04

    摘要: The invention is directed to a drying section of a paper machine for drying a fiber web. The drying section includes a plurality of drying groups, with each drying group having a plurality of heatable drying cylinders and a continuous hold-down belt. The hold-down belt has a longitudinal tension which biases the fiber web against the drying cylinders. The plurality of drying groups include at least one high-pressure group comprising a single-row drying group having one row of drying cylinders and one row of corresponding deflection rolls. The high-pressure group has a corresponding hold-down belt with a longitudinal tension which is at least 10 kN/m.

    摘要翻译: PCT No.PCT / DE95 / 00601 Sec。 371日期:1996年4月9日 102(e)日期1996年4月9日PCT提交1995年5月10日PCT公布。 公开号WO95 / 31601 日期:1995年11月23日本发明涉及用于干燥纤维网的造纸机的干燥部。 干燥部包括多个干燥组,每个干燥组具有多个可加热干燥筒和连续的压紧带。 压紧带具有使纤维幅材相对于干燥筒偏压的纵向张力。 多个干燥组包括至少一个高压组,其包括具有一行干燥筒和一排相应的偏转辊的单排干燥组。 高压组具有相当的纵向张力至少为10kN / m的压紧带。

    Press of a paper machine for thin papers
    22.
    发明授权
    Press of a paper machine for thin papers 失效
    压纸机用于薄纸

    公开(公告)号:US5670023A

    公开(公告)日:1997-09-23

    申请号:US374656

    申请日:1995-01-30

    IPC分类号: D21F3/02 D21F3/04

    CPC分类号: D21F3/045 D21F3/0281 D21F3/04

    摘要: The press section of a paper machine for thin papers has the following characteristics: a pressing gap is formed by a rotary, smooth surface (1) in contact with the paper and by a felted pressing roll (3); the smooth surface (1) transfers the paper web downstream of the pressing gap to a heatable roll (4) without free pulling of the paper web. The invention is characterized in that the smooth surface (1) is the outer surface of a tubular roll with dimensionally stiff roll sleeve.

    摘要翻译: PCT No.PCT / EP94 / 01730 Sec。 371日期1995年1月30日 102(e)1995年1月30日PCT PCT 1994年5月27日PCT公布。 出版物WO94 / 28240 日期1994年12月8日薄纸造纸机的压榨部具有以下特征:通过与纸接触的旋转光滑表面(1)和通过压毡辊(3)形成挤压间隙; 光滑表面(1)将纸幅在挤压间隙的下游传送到可加热辊(4),而不会自动拉动纸幅。 本发明的特征在于,光滑表面(1)是具有尺寸刚性的辊筒的管状辊的外表面。

    Paper machine forming section for producing a multilayer paper web
    23.
    发明授权
    Paper machine forming section for producing a multilayer paper web 失效
    用于生产多层纸幅的造纸机成型部

    公开(公告)号:US5607555A

    公开(公告)日:1997-03-04

    申请号:US379267

    申请日:1995-01-27

    IPC分类号: D21F9/02 D21F9/00 D21F11/04

    CPC分类号: D21F9/006 D21F11/04 D21F9/003

    摘要: A paper machine forming section with two twin-wire sections for forming a multilayer paper web. Each twin wire web-forming unit consisting of a headbox, two wire loops arranged to define a common wire path for molding the web being formed in sandwich-like manner and drainage elements for each of the wire loops. The common wire path of each web-forming unit has a first section including a curved suction drainage element or roll in the first lower wire loop; a second section including opposing drainage ledges, wherein the drainage ledges are stationary on the upper side and the drainage ledges are developed resiliently pressable on the bottom side; the drainage ledges of the upper and lower sides are arranged staggered with respect to each other in the direction of travel of the wire, and at least the ledges of the upper side are developed with suction; and a third section which has at least one suction wire separating element on one side. The twin-wire forming units are so arranged that the same drainage elements are associated in each case with what will be the inner and outer sides respectively of the respective layer of the multilayer paper web.

    摘要翻译: 一种具有用于形成多层纸幅的两个双网部分的造纸机形成部分。 每个双网幅形成单元由流浆箱组成,两个线环布置成限定用于模制网状物的共同线路径,其形状为夹层状,并且用于每个线环的排水元件。 每个幅材形成单元的公共线路径具有在第一下部线环中包括弯曲的抽吸排放元件或辊的第一部分; 第二部分包括相对的排水凸缘,其中排水凸缘在上侧是静止的,并且排水框架在弹性地压制在底侧上; 上侧和下侧的排水框架沿着导线的行进方向彼此交错布置,并且至少上侧的凸缘被抽吸成型; 以及在一侧具有至少一个吸丝分离元件的第三部分。 双线形成单元被布置成使得在每种情况下相同的排水元件分别与多层纸幅的各层的内侧和外侧相关联。

    Stock-inlet for papermaking machine
    24.
    发明授权
    Stock-inlet for papermaking machine 失效
    造纸机入口

    公开(公告)号:US5304285A

    公开(公告)日:1994-04-19

    申请号:US327917

    申请日:1989-01-25

    IPC分类号: D21F1/02

    摘要: Headbox for paper machines, provided with an output channel in the form of a nozzle, with an output slot for producing a strip of pulp having the width of the machine. The output channel is delimited by two flow guide walls converging toward one another and as a rule by a rear wall. It is divided up into a number of channel sections (32), preferably autonomous, by subdivision of the flow guide walls into wall sections (30, 31) and preferably by subdivision of the rear wall into rear wall sections (37). Each channel section may have at least one input line (40) of its own, as well as (for adjusting the opening of the output slot) a section of part of the mobile wall (35) and an associated regulating system (38, 39).

    摘要翻译: PCT No.PCT / EP87 / 00464 Sec。 371日期:1989年1月25日 102(e)日期1989年1月25日PCT PCT 1987年8月19日PCT公布。 第WO88 / 01318 PCT公开 日期:1988年2月25日。用于造纸机的机箱,具有喷嘴形式的输出通道,具有用于产生具有机器宽度的纸浆条的输出槽。 输出通道由两个彼此相聚并通常由后壁汇合的导流壁界定。 通过将导流壁细分成壁部分(30,31),并且优选地将后壁细分成后壁部分(37),将其分成许多通道部分(32),优选是自主的。 每个通道部分可以具有其自身的至少一个输入线(40)以及(用于调节输出槽的开口)移动壁(35)的一部分的一部分和相关联的调节系统(38,39) )。

    Twin-wire former
    25.
    发明授权
    Twin-wire former 失效
    双线形

    公开(公告)号:US5141600A

    公开(公告)日:1992-08-25

    申请号:US573048

    申请日:1990-08-03

    IPC分类号: D21F9/02 D21F9/00

    CPC分类号: D21F9/003

    摘要: A twin-wire former for making a web of paper (9) having two endless loop travelling screens (11, 12) which travel over respective breast rolls (13, 14) and form a wedge-shaped feed gap of a twin-wire region. In the twin wire region the two travelling screens pass first over a curved stationary supporting device (15), then over a forming roll (16) which lies in the same screen loop (11) as the curved supporting device (15), and finally over a screen suction roll (18) which lies in the other screen loop (18). In order to form a large storage volume for water, an additional lattice-like outer shell (27) surrounded by a coarse-mesh textile filter envelope (28) is arranged on the body (16a) of the forming roll. Approximately half the periphery of the screen suction roll (18) is wrapped by the two screens (11, 12). At the end of the said wrapping zone, the one screen (11) runs off from the screen suction roll (18) followed by the other screen (12) together with the web of paper (9).

    摘要翻译: PCT No.PCT / EP89 / 00502 Sec。 371日期1990年8月3日 102(e)日期1990年8月3日PCT提交1989年5月5日PCT公布。 WO89 / 11000 PCT公开号 日期:1月16日,1989年。一种用于制造具有两个环形行进筛网(11,12)的纸张网(9)的双线成形机,其在相应的母乳辊(13,14)上行进并形成楔形进给 双线区域的间隙。 在双线区域中,两个移动屏幕首先穿过弯曲的固定支撑装置(15),然后穿过位于与弯曲支撑装置(15)相同的屏幕环(11)中的成形辊(16),最后 在位于另一屏幕回路(18)中的屏幕抽吸辊(18)上。 为了形成用于水的大储存体积,在成形辊的主体(16a)上布置有由粗网织物过滤器外壳(28)包围的附加格子状外壳(27)。 筛网抽吸辊(18)的大约一半的周边被两个筛网(11,12)包裹。 在所述包装区域的末端,一个筛网(11)与丝网(9)一起从筛网吸辊(18)离开,接着是另一个筛网(12)。

    Twin-wire former for the production of a web of paper
    26.
    发明授权
    Twin-wire former for the production of a web of paper 失效
    用于生产纸张的双线成型机

    公开(公告)号:US5019214A

    公开(公告)日:1991-05-28

    申请号:US451818

    申请日:1989-12-15

    IPC分类号: D21F9/00

    CPC分类号: D21F9/003

    摘要: A twin-wire former for the production of a web of paper from a fiber suspension. An upper endless loop of wire belt having a lower horizontal run and a lower endless loop wire belt having an upper horizontal run. Guide rolls support the wire belts to define a twin-wire zone. The upstream inlet wedge of the twin-wire zone is disposed at the outlet from a head box. The initial part of the path of the twin-wire zone has a gradual curvature convexly with respect to the lower wire belt, and in that initial portion are positioned guide tables, suction boxes and dewatering elements. This curved initial part is followed by a forming roll within the loop of the upper wire belt. The twin-wires wrap an arcuate sector of the lower region of the forming roll. A support roll follows the forming roll. The support roll is upraised sufficiently to wrap the twin-wires around the bottom of the forming roll and over an arcuate sector at the top of the support roll. Following the support roll, the upper wire separates from the lower wire. In the continuing generally horizontal, slightly descending path of the lower wire with the web on it are disposed a plurality of suction boxes and a lower wire suction roll to define a final dewatering path after the twin-wire zone.

    摘要翻译: 一种用于从纤维悬浮液生产纸幅的双线成型机。 具有较低水平行程的电线带的上部无限循环和具有上部水平行程的下部无端环线缆带。 导辊支撑钢丝绳带以限定双线区域。 双线区域的上游入口楔设置在头箱的出口处。 双线区域的路径的初始部分相对于下部电缆带呈凸起的渐变曲线,并且在该初始部分中定位有引导台,抽吸箱和脱水元件。 该弯曲的初始部分之后是在上部线带的环内的成形辊。 双丝缠绕成形辊的下部区域的弓形部分。 支撑辊跟随成型辊。 支撑辊被充分地升高以将双网包裹在成形辊的底部周围并且在支撑辊的顶部的弓形部分上方。 在支撑辊之后,上部电线与下部电线分离。 在其上具有腹板的下部丝线的连续大致水平的稍微下降的路径中设置有多个抽吸盒和下部线抽吸辊,以在双网区域之后限定最终脱水路径。

    Press section with two extended nip presses for the production of a
fibrous web
    27.
    发明授权
    Press section with two extended nip presses for the production of a fibrous web 失效
    具有两个延伸压区的压榨部用于生产纤维网

    公开(公告)号:US4988410A

    公开(公告)日:1991-01-29

    申请号:US347762

    申请日:1989-05-05

    IPC分类号: D21F3/00 D21F3/02 D21F3/04

    CPC分类号: D21F3/0218 D21F3/04 D21F3/045

    摘要: A press section of a paper machine is of the type having two extended press nips (27, 37) disposed one behind the other, which are each formed by a press roll (21, 31) and by a flexible rotating press member (28) which can be pressed against the press rolls by means of a press shoe (27, 37). The paper web which is to be dewatered passes through the first extended press nip between two endless felt belts (11, 13).In accordance with the invention, the paper web runs through the second extended press nip together with only one (11 or 13) of the two felt belts. As a result the paper web (9) comes into contact with the smooth outer surface of the second press roll. Because of this arrangement the flexible press member can have a rough outer surface formed, for example, by the joggles of a reinforcing fabric.

    摘要翻译: 造纸机的压榨部具有两个彼此靠后设置的延伸压榨辊(27,37)的类型,它们均由压辊(21,31)和柔性旋转压力构件(28)形成, 其可以通过压力靴(27,37)压靠压力辊。 待脱水的纸幅通过两个环形毛毡带(11,13)之间的第一延长的压榨压区。 根据本发明,纸幅与仅两个毡带中的一个(11或13)一起延伸穿过第二延伸的压榨压区。 结果,纸幅(9)与第二压辊的平滑的外表面接触。 由于这种布置,柔性压制构件可以具有例如由加强织物的滑块形成的粗糙的外表面。

    Air guide box for the dryer section of a paper making machine
    28.
    发明授权
    Air guide box for the dryer section of a paper making machine 失效
    造纸机干燥部导气箱

    公开(公告)号:US4502231A

    公开(公告)日:1985-03-05

    申请号:US532353

    申请日:1983-09-15

    IPC分类号: D21F1/00 D21F5/04 F26B13/08

    CPC分类号: D21F5/042

    摘要: An air guide box for the dryer section of a paper making machine is arranged as generally between two succeeding drying cylinders and along a continuous support band or belt which supports the associated paper web to be dried; the air guide box has an end of generally wedge-like configuration which extends at least some distance into the gore-like space as exists in the region where the support band or belt runs onto the next drying cylinder; a first gap exists generally between a first wall of the guide box and the running support band or belt while a second gap exists as between a second wall of the guide box and the juxtaposed surface of such next drying cylinder. In order to guide the paper web along the support band or belt in order to assure proper contact: (a) on the inflow side, an air wipe-off or barrier apparatus is provided as at the guide box; (b) the first gap preferably diverges from the first wall as the first gap more nearly approaches the gore-like space; (c) the guide box is connected to a blast air supply which, preferably, is directed through an opening and into the second gap as to have a flow direction generally opposite to the direction of rotation of such next drying cylinder; and (d) preferably the first and second gaps are interconnected by a passage with such interconnecting passage being situated as to occur before the air blast opening when viewed or considered in the direction of rotation of such next drying cylinder.

    摘要翻译: 制纸机的干燥部的空气引导箱一般设置在两个后续的干燥筒之间,并且沿着支撑相关联的待干燥的纸幅的连续支撑带或带, 空气引导箱具有大致楔形构造的端部,其在支撑带或带运行到下一个干燥筒上的区域中存在至少一些距离,延伸到孔状空间中; 通常在引导箱的第一壁和行进的支撑带或带之间存在第一间隙,而在引导箱的第二壁和下一个干燥缸的并置表面之间存在第二间隙。 为了沿着支撑带或带引导纸幅,以确保正确接触:(a)在流入侧,在引导箱处设置有空气擦除或阻挡装置; (b)当第一间隙更靠近高尔基空间时,第一间隙优选地从第一壁分开; (c)引导箱连接到鼓风空气源,吹风空气源优选地被引导通过开口并进入第二间隙,使得流动方向大致与下一个干燥筒的旋转方向相反; 和(d)优选地,第一和第二间隙通过通道相互连接,这样的互连通道位于当在这样的下一个干燥筒的旋转方向上观察或考虑时在空气鼓风开口之前发生。

    Headbox for papermaking machine
    29.
    发明授权
    Headbox for papermaking machine 失效
    造纸机流浆箱

    公开(公告)号:US4387003A

    公开(公告)日:1983-06-07

    申请号:US284525

    申请日:1981-07-17

    IPC分类号: D21F1/00 D21F1/02 D21F1/06

    CPC分类号: D21F1/02 D21F1/026

    摘要: A manifold-like chamber is shown having a plurality of distribution conduits in communication therewith for evenly and uniformly distributing fluid pulp stock for subsequent paper forming operations; alternate ones of such conduits communicate with the chamber as at a relatively low elevation thereof while intermediate alternate ones of such conduits communicate with the chamber at a relatively higher elevation; the distribution conduits are formed as with two straight sections joined by an intermediate single curved or bent portion to further enhance turbulence therein; the distribution conduits are further situated as have the discharge therefrom generally parallel, at least as viewed from above; edge-forming means is provided within the chamber as to thereby obtain desired flow patterns within the fluid pulp in the chamber.

    摘要翻译: 示出了具有与其连通的多个分配管道的歧管状室,用于均匀和均匀地分配用于随后的造纸操作的流体纸浆; 这样的管道中的替代物在其相对较低的高度处与腔室连通,而这些管道中的中间交替管道以较高的高度与腔室连通; 分配管道形成为具有通过中间单个弯曲或弯曲部分连接的两个直线部分,以进一步增强其中的湍流; 至少从上方观察,分配管道进一步位于其排出口大致平行的位置; 边缘形成装置设置在腔室内,从而获得腔室内流体纸浆内所需的流动图案。

    Apparatus and process for a cross-direction profile of a material web
    30.
    发明授权
    Apparatus and process for a cross-direction profile of a material web 失效
    用于材料网的横向剖面的装置和方法

    公开(公告)号:US06526369B1

    公开(公告)日:2003-02-25

    申请号:US09353021

    申请日:1999-07-13

    IPC分类号: G01B502

    摘要: Measurement system and process for measuring a cross-direction profile of specific properties of at least one of a material web and a coating on the material web. The system includes at least one stationary cross-direction profile measurement device having at least one radiation source adapted to irradiate the at least one of the material web and the coating on the material web in a plurality of defined and different wavelength ranges, and at least one sensor adapted to measure the intensity of radiation affected by the at least one of the material web and the coating on the material web. The system also includes at least one measurement and/or evaluation electronics system. Each sensor detects only one of the defined different wavelength ranges of the radiation at a specific point in time. The process includes irradiating the at least one of the material web and the coating on the material web with a plurality of defined and different wavelength ranges via at least one radiation source, and measuring an intensity of radiation affected by the at least one of the material web and the coating on the material web with at least one sensor. Only one of the defined different wavelength ranges of the radiation is measured by each sensor at a specific point in time.

    摘要翻译: 用于测量材料纤维网上的材料纤维网和涂层中的至少一个的特定特性的横向分布的测量系统和方法。 所述系统包括至少一个固定的横向轮廓测量装置,其具有至少一个辐射源,所述至少一个辐射源适于以多个限定和不同的波长范围照射所述材料幅材上的所述材料幅材和所述涂层中的所述至少一个,并且至少 一个传感器适于测量受材料幅材上的至少一个材料幅材和涂层影响的辐射强度。 该系统还包括至少一个测量和/或评估电子系统。 每个传感器仅在特定时间点检测到辐射的所定义的不同波长范围中的一个。 该方法包括经由至少一个辐射源以多个限定和不同的波长范围,通过至少一个辐射源照射材料幅材上的材料幅材和涂层中的至少一个,并测量受该材料中的至少一种影响的辐射强度 纤维网和具有至少一个传感器的材料纤维网上的涂层。 每个传感器在特定时间点测量辐射的定义不同波长范围中的一个。