公开(公告)号：US5756156A

公开(公告)日：1998-05-26

申请号：US705059

申请日：1996-08-29

申请人： Seppo Elijoki ,  Heikki Ilvespaa ,  Antti Kuhasalo ,  Reima Kerttula

发明人： Seppo Elijoki ,  Heikki Ilvespaa ,  Antti Kuhasalo ,  Reima Kerttula

IPC分类号： F26B13/08 ,  D21F5/04 ,  D21G1/00 ,  D21G7/00 ,  D21G9/00 ,  D21H23/70 ,  F26B13/10 ,  F26B13/18 ,  F26B13/30 ,  B05D3/02

CPC分类号： D21F5/04 ,  D21G1/00 ,  D21G9/009 ,  D21H23/70

摘要： A method for producing surface-treated paper, in particular of fine paper, and a dry end of a paper machine that makes use of the method. A paper web that has been dewatered by pressing is dried in the forward dryer section, in which drying energy is applied to the paper web over the entire length of the forward dryer section asymmetrically in the z-direction from the side of the bottom face of the web. This step is carried out by a number of successive groups with single-wire draw that are open downward. In this manner, shrinkage of the web both in the machine direction and in the cross direction is reduced or at least partially prevented, which shrinkage tends to take place when the dry solids content becomes higher. Paper broke is removed from underneath the drying groups that are open downward substantially by the force of gravity onto the broke conveyor placed underneath. The paper web which has a tendency of curling because of the asymmetric forward-drying is passed to the finishing section where it is finished while it is moistened and/or worked plastically so that the tendencies of curling that arose in the web in the forward drying stage are substantially reduced.

摘要翻译： 一种用于生产表面处理过的纸，特别是高级纸的方法，以及使用该方法的造纸机的干燥端。 已经通过压制脱水的纸幅在前部干燥部中被干燥，其中干燥能量在前方干燥部的整个长度上沿着Z方向从底面的侧面向z方向施加到纸幅上 网络。 该步骤由多个连续的组进行，其中单线绘制向下敞开。 以这种方式，幅材在机器方向和横向方向上的收缩被减少或至少部分地被防止，当干固体含量变高时，倾向于发生收缩。 干燥组下面基本上通过重力向下打开到放置在下面的破碎输送机上的干燥组下面，将纸张断开。 由于不对称的前向干燥而具有卷曲倾向的纸幅被传送到精加工部分，在其完成时，其被加湿和/或塑化加工，使得在正向干燥中在卷筒纸中产生的卷曲倾向 阶段大大减少。

公开(公告)号：US5630285A

公开(公告)日：1997-05-20

申请号：US593609

申请日：1996-01-30

申请人： Reima Kerttula ,  Jouko Yli-Kauppila

发明人： Reima Kerttula ,  Jouko Yli-Kauppila

IPC分类号： F26B13/10 ,  D21F5/04 ,  D21F5/16 ,  D21G7/00 ,  F26B3/00

CPC分类号： D21F5/04 ,  D21F5/042 ,  D21F5/048 ,  D21G7/00

摘要： A method and device for drying a paper web in a dryer section having a number of successive dryer groups with a single-wire draw, and being situated after a press section of the paper machine. Each dryer group includes contact-drying cylinders arranged in a first row and reversing suction cylinders or equivalent suction rolls arranged in a second row, the rows being horizontal, diagonal or vertical rows. The paper web is dried by contact-drying cylinders from the side of its lower face across the entire length of the dryer section. The paper web is passed as a closed draw from one dryer group to the next group, and the paper web is guided, while it runs on the drying wire at the side of the outside curve, by the reversing suction cylinders having a curve radius selected in a range from about 250 mm to about 1000 mm. The paper web is kept in constant contact with the drying wire as it is placed at the side of the outside curve, against the effect of centrifugal forces by a pressure difference which preferably extends over the entire inner circumference of the reversing suction cylinders. In addition to the above, or as an alternative, the paper web is dried from the side of its upper face on a draw or draws of the paper web that is/are free from the wire and/or a flow of drying air is applied to the upper face of the paper web through the drying wire and/or on the draws of the paper web that are free from the wire.

摘要翻译： 一种用于在具有多个连续干燥器组的干燥器部分中干燥纸幅的方法和装置，其具有单线牵引，并且位于造纸机的压榨部分之后。 每个干燥器组包括布置在第一排中的接触干燥筒和布置在第二排中的反向吸入缸或等效的吸入辊，所述行是水平的，对角线或垂直排。 纸幅通过接触干燥筒从其下表面的整个干燥部的整个长度干燥。 纸幅作为封闭的抽出通过一个干燥器组到下一个组，并且纸幅被引导，而其在外部曲线侧的干燥丝上运行，具有选择的曲线半径的反向抽吸圆筒 在约250mm至约1000mm的范围内。 当干燥线被放置在外部曲线的侧面时，纸幅与离心力的作用保持恒定的接触，该压力差优选地在反向吸入气缸的整个内周上延伸。 除了上述之外，或作为替代方案，纸幅从其上表面的一侧在绘图上进行干燥或者纸幅从纸上脱落和/或施加干燥空气流 通过干燥线和/或纸幅的不含导线的纸幅的纸幅的上表面。

公开(公告)号：US5557856A

公开(公告)日：1996-09-24

申请号：US230059

申请日：1994-04-20

申请人： Reima Kerttula

发明人： Reima Kerttula

IPC分类号： D21F5/00 ,  D21F5/04 ,  D06F58/00

CPC分类号： D21F5/00 ,  D21F5/04

摘要： An arrangement in a paper machine dryer section for separating moist dryer section from dry, useful spaces situated underneath the dryer section of the paper machine. Horizontal beams that support the frame of the dryer section of the paper machine are positioned above, or in the upper part of, the space underneath the dryer section. The horizontal beams are supported by vertical beams. The dryer section is surrounded by a hood placed above the floor level of the paper machine hall and which confines the moist spaces of the dryer section in its interior. Underneath the dryer section, a horizontal partition-wall construction is arranged to separate the moist hood spaces of the dryer section from dry, useful spaces situated underneath the moist hood spaces. Conveyor devices for disposing paper broke are arranged above the partition-wall construction. The dry, useful spaces are arranged to be storage spaces and/or installation spaces for one or more other suitable devices of the paper machine.

摘要翻译： 在造纸机干燥部分中的布置，用于将干燥部分与干燥的有用的空间分离，该空间位于造纸机的烘干机部分下方。 支撑造纸机干燥部分的框架的水平横梁位于烘干机部分下方的空间的上方或上部。 水平梁由垂直梁支撑。 干燥部分由位于造纸机大厅的地板上方的发动机罩围起来，并将干燥器部分的湿空间限制在其内部。 在干燥器部分下方，设置水平分隔壁结构，以将干燥部分的潮湿罩空间与位于潮湿罩空间下面的干燥有用的空间分开。 用于布置纸张的输送装置布置在隔墙结构的上方。 干燥，有用的空间被设置为用于造纸机的一个或多个其它合适装置的储存空间和/或安装空间。

公开(公告)号：US5388347A

公开(公告)日：1995-02-14

申请号：US174710

申请日：1993-12-29

申请人： Reima Kerttula ,  Jouko Yli-Kauppila

发明人： Reima Kerttula ,  Jouko Yli-Kauppila

IPC分类号： D21F5/04 ,  D21G9/00 ,  F26B3/00

CPC分类号： D21F5/042 ,  D21G9/0063

摘要： A dryer section in a paper machine for drying a paper web, having normal dryer groups with a single-wire draw in which drying cylinders are arranged in an upper row and reversing cylinders in a lower row. The dryer section has at least one inverted dryer groups in which drying cylinders are arranged in a lower row and reversing cylinders are arranged in an upper row. In view of making the dryer section more compact, intensifying the evaporation, reducing the transverse shrinkage of the web, and/or improving the runnability of the web, the drying cylinder and/or the reversing cylinder or roll placed in connection with the transfer over the gap between the groups is/are placed so that its/their height position is displaced as compared with the other cylinders in the same group. In an inverted group, an upper reversing cylinder is arranged in connection with blower devices for drying air for the web. The blowings directed from the blower devices increase the evaporation from the web and/or control the transverse moisture profile in the web.

摘要翻译： 用于干燥纸幅的造纸机中的干燥部，具有通常的具有单线牵引的干燥器组，其中干燥滚筒布置在上排中，并且在下排中具有可逆的滚筒。 干燥部具有至少一个倒置的干燥器组，其中干燥滚筒布置在下排中，反向滚筒布置在上排。 鉴于使干燥器部分更紧凑，加剧蒸发，减少幅材的横向收缩和/或改善幅材，干燥筒和/或与转印相关联的反转筒或辊的运行性 与相同组中的其它气缸相比，这些组之间的间隙被放置成使其/它们的高度位置移位。 在倒置组中，与用于干燥网的空气的鼓风机装置相连地布置有上反转筒。 从鼓风机装置引导的吹塑物增加了幅材的蒸发和/或控制幅材中的横向湿度分布。

公开(公告)号：US5044094A

公开(公告)日：1991-09-03

申请号：US570129

申请日：1990-08-20

申请人： Heikki Ilvespaa ,  Reima Kerttula ,  Allan Liedes

发明人： Heikki Ilvespaa ,  Reima Kerttula ,  Allan Liedes

IPC分类号： D21F5/04

CPC分类号： D21F5/042

摘要： The invention relates to an apparatus for use in the drying section of a paper machine, which apparatus comprises a drying cylinder group formed by drying cylinders and a roll group formed by rolls, preferably suction rolls located at a different height relative to the drying cylinders. The geometric rotational axis of the roll located in an area between two adjacent drying cylinders in a different height position is spaced away from the center plane between the center axes of the drying cylinders. The surface of the roll, preferably a suction roll, is adapted to be located as close to the surface of the drying cylinder on the web outgoing side of the roll as possible, whereby the free transfer distance of the outgoing side is minimized.

公开(公告)号：US4693784A

公开(公告)日：1987-09-15

申请号：US851480

申请日：1986-04-14

申请人： Jouko Aula ,  Reima Kerttula

发明人： Jouko Aula ,  Reima Kerttula

IPC分类号： F16C13/00 ,  B65H5/22 ,  B65H20/12 ,  B65H23/24 ,  D21F1/00 ,  D21F3/10 ,  D21F5/04

CPC分类号： B65H5/226 ,  B65H20/12 ,  B65H23/24 ,  D21F3/10 ,  D21F5/042 ,  Y10T83/207

摘要： A method for applying a negative pressure over a sector of an air-pervious mantle of a roll includes providing a suction chamber within the pervious roll mantle which extends over a suction sector of the roll, directing air jets away from the suction chamber at the outermost edge portions of the suction chamber, the air jets causing air currents to be ejected from the suction chamber at the outermost edge zones thereof, the air currents thereby producing air seals at the outermost edge zones of the suction chamber without the use of contact-type sealing elements and at the same time, at least partly, providing a negative pressure in the suction chamber. A suction roll includes blow nozzles for directing air jets away from the suction chamber substantially parallel to the tangent of the roll mantle proximate to the blow nozzles. The inlet sides of the blow nozzles are connected to a pressure chamber situated within the roll mantle, the pressure chamber adapted to be connected to a pressure source.

摘要翻译： 在辊的可透气外壳的扇形部分上施加负压的方法包括：在可渗透的辊罩内提供吸入室，所述抽吸室在辊的抽吸部分上延伸，引导空气射流远离最外侧的吸入室 吸入室的边缘部分，空气射流使空气流在其最外边缘区域处从吸入室喷射，从而在吸入室的最外边缘区域处产生空气密封，而不使用接触型 密封元件，并且同时至少部分地在吸入室中提供负压。 抽吸辊包括用于将空气射流引导离开吸入室的吹气嘴，其基本上平行于靠近吹塑喷嘴的辊罩的切线。 喷嘴的入口侧连接到位于辊罩内的压力室，压力室适于连接到压力源。