公开(公告)号：US5019213A

公开(公告)日：1991-05-28

申请号：US513544

申请日：1990-04-24

申请人： Raimo Virta ,  Vesa Vuorinen ,  Reijo Ruottu

发明人： Raimo Virta ,  Vesa Vuorinen ,  Reijo Ruottu

IPC分类号： D21F5/04 ,  D21F7/00 ,  D21G9/00

CPC分类号： D21G9/0072 ,  D21F5/042

摘要： A method and apparatus in a drying section of a paper making machine wherein a so-called single-wire draw is applied and wherein blow boxes (20) are used, which are intended to prevent phenomena that disturb the mutual support contact between the web (W) and the drying wire (12). The blow boxes (20) extend across the entire width of the web (W), and they communicate with members (17, 18, 21, 22) that supply blow air, and they are provided with at least two nozzle slots (13, 14) transverse to the running and longitudinal direction of the web (W) as well as with a carrier face (16) between said nozzle slots. Negative pressure is produced in the space (A-) defined by the carrier face (16) and the drying wire (12) by means of the ejection and prevention effects of the air jets (F.sub.1, F.sub.2) blown through the nozzle slots (13,14). In order to speed the threading of the web (W), in the blow boxes (20) the blow sections (24.sub.k+1. . . 24.sub.N ) that remain outside the transverse area (A) of the leader band (R) are closed. The blowing, which has thereby been intensified, is applied through both of the opposite nozzles (13, 14) of the blow boxes (20) in connection with the threading only within the area (A) comprising the width (L.sub.R) of the leader band (R).

摘要翻译： 在造纸机的干燥部分中的方法和装置，其中应用了所谓的单线牵引，并且其中使用了吹风箱（20），其旨在防止干扰纸幅之间的相互支撑接触的现象（ W）和干燥丝（12）。 吹风箱（20）跨越卷筒纸（W）的整个宽度延伸，并且它们与供应吹风空气的构件（17,18,21,22）连通，并且它们设置有至少两个喷嘴槽（13， 横向于卷筒纸（W）的运行和纵向方向以及在所述喷嘴槽之间的承载面（16）。 通过由喷嘴槽（13）吹出的空气射流（F1，F2）的喷射和防止效果，在由载体面（16）和干燥线（12）限定的空间（A-）中产生负压 ，14）。 为了加速卷筒纸（W）的穿线，在吹风箱（20）中，保持在引导带（R）的横向区域（A）外侧的吹风部分（24k + 1 ... 24N）被关闭 。 因此，通过与吹风箱（20）的相对的喷嘴（13,14）的两个喷嘴（13,14）相连接，仅在包括引导件的宽度（LR）的区域（A）的区域 带（R）。

公开(公告)号：US5509215A

公开(公告)日：1996-04-23

申请号：US45638

申请日：1993-04-09

申请人： Vesa Koiranen ,  Vesa Vuorinen ,  Raimo Virta

发明人： Vesa Koiranen ,  Vesa Vuorinen ,  Raimo Virta

IPC分类号： D21F5/04 ,  D06F58/00

CPC分类号： D21F5/042

摘要： The invention relates to a method and device for stabilizing a paper web in a group of cylinders in the dryer section of a paper machine. The group of cylinders are arranged in a row of drying cylinders and a corresponding row of leading rolls or equivalent placed as interlocked with the drying cylinders. The group of cylinders is provided with a single-wire draw so that the heated drying cylinders in the group are placed outside the loop of the drying wire and the leading rolls in the group are placed inside the loop of the drying wire. The stabilization device is arranged in the area between adjacent drying cylinders and the leading roll or equivalent placed as interlocked between the adjacent drying cylinders in the group of cylinders. Air is blow from the device and directed in the direction opposite to the running direction of the paper web. A nozzle opening of the stabilization device is shaped so that the air flow follows a substantially smooth face of the stabilization device while, at the same time, ejecting surrounding air along with it. In preferred embodiments, the smooth face is substantially parallel to the drying wire and the group of cylinders is formed as a compact geometry.

摘要翻译： 本发明涉及一种用于在造纸机的干燥器部分中的一组圆柱体中稳定纸幅的方法和装置。 一组气缸布置成一排干燥筒和相应的一排引导辊或等同物，与干燥筒互锁。 该组气缸设置有单线牵引，使得组中的加热的干燥筒被放置在干燥线的环之外，并且组中的前导辊被放置在干燥线的环内。 稳定装置设置在相邻的干燥筒与引导辊之间的区域中，或者相当于在一组缸体中相邻的干燥缸之间互锁的等效物。 空气从设备吹出并沿与纸幅的运行方向相反的方向引导。 稳定装置的喷嘴开口成形为使得空气流遵循稳定装置的基本上光滑的表面，同时同时喷射周围的空气。 在优选实施例中，平滑面基本上平行于干燥线，并且一组圆筒形成为紧凑的几何形状。

公开(公告)号：US5152076A

公开(公告)日：1992-10-06

申请号：US618000

申请日：1990-11-26

申请人： Raimo Virta ,  Vesa Vuorinen

发明人： Raimo Virta ,  Vesa Vuorinen

IPC分类号： D21F5/04 ,  D21F5/14 ,  D21F5/18 ,  F26B13/08 ,  F26B13/18

CPC分类号： D21F5/042 ,  D21F5/044 ,  F26B13/08 ,  F26B13/18

摘要： The invention concerns a method and an apparatus in a paper machine, in particular in its drying section, for intensification of the drying of the paper. In the method the paper web (W) is passed on support of a drying fabric onto a drying cylinder (K). In the method, in connection with the drying cylinder (K), a separate suction device (10) is employed, which is fitted at a distance (F) from the drying fabric, e.g. a wire (H), which follows the face of the drying cylinder. In the method, by means of the suction device (10), the boundary layer (S.sub.1) of moist air, which has been formed on the face of the drying fabric (H), is suctioned off, whereby the drying process is promoted.

摘要翻译： 本发明涉及造纸机中的方法和设备，特别是在其干燥部分中，用于强化纸张的干燥。 在该方法中，将纸幅（W）通过干燥织物的载体通过干燥筒（K）。 在该方法中，与干燥筒（K）结合使用单独的抽吸装置（10），其与干燥织物（例如， 电线（H），其沿着干燥筒的表面。 在该方法中，通过吸引装置（10），已经形成在干燥织物（H）的表面上的潮湿空气的边界层（S1）被抽吸，从而促进干燥过程。

公开(公告)号：US5720852A

公开(公告)日：1998-02-24

申请号：US450334

申请日：1995-05-25

申请人： Raimo Virta ,  Vesa Vuorinen

发明人： Raimo Virta ,  Vesa Vuorinen

IPC分类号： D21G9/00 ,  D21F1/42

CPC分类号： D21G9/0063

摘要： A method and device for stabilizing the running of a paper web in a paper machine in connection with a paper guide roll, in particular between a press section and a dryer section. In the method, the paper web is passed over the paper guide roll onto a drying wire or equivalent and negative pressure (suction) in the opening nip of the paper guide roll is lowered until a transition is made to the side of positive pressure in order to press the paper web against the drying wire or equivalent. The device includes a nozzle beam and an air chamber which communicates with a blow air duct. The nozzle beam is placed at the side of the opening nip of the paper guide roll such that the blowing discharged out of a nozzle opening of the nozzle beam is directed at the opening nip in order to press the paper web against the drying wire or equivalent.

摘要翻译： 一种用于在造纸机中与纸引导辊特别是在压榨部和干燥部之间稳定纸幅的运行的方法和装置。 在该方法中，将纸幅通过导纸辊放置在干燥线上，或者相当于导纸辊的打开辊隙中的等效负压（吸力），直到向正压侧顺序转动 将纸幅压靠干燥线或等同物。 该装置包括喷嘴梁和与吹风管道连通的空气室。 喷嘴梁被放置在导纸辊的打开辊隙的一侧，使得从喷嘴梁的喷嘴开口排出的吹扫指向打开压区，以将纸幅压靠干燥丝或等效物 。

公开(公告)号：US4905380A

公开(公告)日：1990-03-06

申请号：US238758

申请日：1988-08-30

申请人： Pekka Eskelinen ,  Raimo Virta ,  Vesa Vuorinen

发明人： Pekka Eskelinen ,  Raimo Virta ,  Vesa Vuorinen

IPC分类号： D21F5/04

CPC分类号： D21F5/042

摘要： A single-wire drying group in a paper machine is disclosed including a plurality of drying cylinders whose axes are situated in a substantially common plane, a drying wire carrying a web between successive drying cylinders, one or more deflection rolls, each situated between a pair of successive drying cylinders and wherein the web-carrying drying wire has an incoming run from a drying cylinder to a deflection roll whereupon the drying wire runs over a deflection sector of the deflection roll and then to a subsequent drying cylinder. A blow box has a wall which defines a gap space with the incoming run of the web-carrying wire and a gas flow is directed through the gap space to induce an under pressure on the incoming run to fix the web on the drying wire. The deflection roll has a perforated shell in the perforations of which an underpressure is maintained to ensure that the web remains in contact with the outer surface of the drying wire as the drying wire travels over the deflection or closed sector of the deflection roll.

摘要翻译： 公开了一种造纸机中的单线干燥组，其包括多个干燥筒，其轴线位于基本上共同的平面中，干燥线在相继的干燥筒之间承载腹板，一个或多个偏转辊，每个位于一对之间 的连续干燥筒，并且其中带卷筒的干燥线具有从干燥筒到偏转辊的进入流程，随后干燥线在偏转辊的偏转扇区上延伸，然后延伸到随后的干燥筒。 吹风箱具有壁，该壁限定与卷材承载线的进入行程的间隙空间，并且气流被引导通过间隙空间，以在进入的运行中引起压力下将纤网固定在干燥丝上。 偏转辊在穿孔中具有穿孔的壳体，其中保持负压，以确保当干燥丝线在偏转辊的偏转或闭合扇区上行进时，幅材保持与干燥丝线的外表面接触。

公开(公告)号：US5524360A

公开(公告)日：1996-06-11

申请号：US219651

申请日：1994-03-29

申请人： Raimo Virta ,  Vesa Vuorinen

发明人： Raimo Virta ,  Vesa Vuorinen

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

CPC分类号： D21F5/046

摘要： A method and apparatus for ventilating pocket spaces in a multi-cylinder dryer of a paper machine, in particular a high-speed paper machine whose running speed is higher than about 800 meters per minute, in the area of a so-called twin-wire draw. In the twin-wire draw, the drying cylinders in the drying group are arranged in two rows placed one above the other, in which rows the successive cylinders are placed in the upper row and in the lower row as interlocked. In each cylinder group, there are two drying wires, an upper wire and a lower wire for pressing the paper web against heated faces of the drying cylinder while being guided by guide rolls placed in gaps between the cylinders. The paper web runs as free draws between the rows of cylinders. Pocket spaces are formed in the area between the free draws of the web and the upper wire and its guide roll and the drying cylinder in the lower row and, in a corresponding manner, adjacent pocket spaces are formed in the area between the free draws of the web, the lower wire, its guide roll, and the drying cylinder in the upper row. The pocket spaces are ventilated by pumping air induced by the wire in the multi-cylinder dryer, wherein, at the inlet side of the guide roll, the wire pumps air into the pocket spaces through the wire and wherein the wire pumps air out of the pocket spaces at the outlet side of the guide roll of the wire. Air being pumped out through the wire on its run at the outlet side from the guide roll to the following cylinder is limited as compared with free pumping-in and pumping-out so as to control the pressure level and/or the flow status in the pocket spaces.

摘要翻译： 一种用于在造纸机的多气缸干燥器中通风的空间的方法和装置，特别是运行速度高于约800米/分钟的高速造纸机，在所谓的双线 画。 在双线牵引中，干燥组中的干燥筒布置成两列，一排一个放置在一起，其中连续的气缸以互锁的方式放置在上排和下排中。 在每个气缸组中，存在两个干燥线，上部线和下部线，用于在被布置在气缸之间的间隙中的引导辊引导时将纸幅压靠在干燥筒的加热面上。 纸幅在圆柱体之间作为自由绘制。 口袋空间形成在纸幅的自由牵引和上线及其引导辊和下排中的干燥筒之间的区域中，并且以相应的方式形成相邻的袋状空间， 纸幅，下线，其导辊和上排的干燥筒。 通过在多缸干燥器中抽吸由导线引起的空气来对袋口空间进行通风，其中，在导向辊的入口侧，电线泵通过电线空气进入袋状空间，并且其中电线泵从 导线辊出口侧的口袋空间。 与自由泵入和抽出相比，空气在其从出口侧的从导向辊到下一个气缸的运行中被抽出是有限的，以便控制压力水平和/或流动状态 口袋空间。

公开(公告)号：US4892622A

公开(公告)日：1990-01-09

申请号：US87400

申请日：1987-08-20

申请人： Raimo Malkki ,  Paavo Jaatinen ,  Timo Haverinen ,  Pekka Eskelinen ,  Juhani Jokinen ,  Vesa Vuorinen ,  Raimo Virta ,  Martti Salmivaara

发明人： Raimo Malkki ,  Paavo Jaatinen ,  Timo Haverinen ,  Pekka Eskelinen ,  Juhani Jokinen ,  Vesa Vuorinen ,  Raimo Virta ,  Martti Salmivaara

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

CPC分类号： D21F9/02 ,  D21F1/009

摘要： A method of and arrangement for resisting formation of undulations in a fiber/water mixture supplied onto a forming wire at an open planar wire section of a paper-making machine include establishing over the wire an air curtain extending over the full breadth thereof, in the region of which the air mass upon the wire is set in motion. The direction of movement of the air mass is the same as the traveling direction of the wire, and the velocity of the air substantially equals the speed of the wire. The air curtain commences on the planar wire section, in the machine direction, only at a given distance from a lip slice of a headbox of the machine, and the air curtain extends along the traveling direction of the web over the planar wire section over a given distance.

摘要翻译： 在制纸机的开放平面线部分处提供给成形线上的纤维/水混合物中形成波纹的方法和装置包括在线上设置在其整个宽度上延伸的气帘， 导线上的空气质量被设定为运动的区域。 空气质量的移动方向与导线的行进方向相同，空气的速度基本上等于电线的速度。 空气幕在平面线部分上在机器方向上仅在与机器的流浆箱的唇形片一定距离处开始，并且空气幕沿着平面线部分上的幅材的行进方向延伸超过一个 给定距离

公开(公告)号：US5996244A

公开(公告)日：1999-12-07

申请号：US989063

申请日：1997-12-11

申请人： Pekka Saarikivi ,  Raimo Virta

发明人： Pekka Saarikivi ,  Raimo Virta

IPC分类号： D21F3/10 ,  D21F5/04 ,  F26B13/14 ,  D21F5/00 ,  F26B11/06

CPC分类号： F26B13/14 ,  D21F3/10 ,  D21F5/042

摘要： A roll for a paper machine, in particular for a paper drying device, including an axle on whose support the roll revolves, and a surface construction connected to the axle by support members. The openness of the surface construction of the roll is higher than about 10%, preferably higher than about 20%, so that when the roll an effect is produced that sucks air inward into the roll whereby a flow of air through the roll arises. Also, a single-wire draw dryer group for a paper machine having two contact-drying cylinders and one reversing roll wherein a web to be dried is guided on support of a drying wire meandering from one drying cylinder onto the reversing roll and then onto the other drying cylinder so that on the drying cylinders, the web remains between the cylinder face and the drying wire and on the reversing cylinder, the web is situated at the side of the outside curve. The reversing roll in the dryer group is an open roll having a surface construction with an openness higher than about 10%, preferably higher than about 20%, so that the flow of air traveling along with the wire passes through the open surface construction of the roll into the interior of the roll and is discharged further out along with the wire as an air flow through the open surface construction of the roll.

摘要翻译： 一种用于造纸机的卷筒，特别是用于纸张干燥装置的卷筒，该卷筒装置包括一个支承滚轮旋转的轴，以及通过支撑件连接到该轴的表面结构。 辊的表面结构的开放度高于约10％，优选高于约20％，使得当辊产生将空气向内吸入辊中的效果时，产生通过辊的空气流。 另外，用于具有两个接触干燥筒和一个反向辊的造纸机的单线牵引干燥器组，其中将要干燥的幅材支撑在从一个干燥滚筒蜿蜒到反转辊上的干燥丝线上，然后到 其它干燥筒，使得在干燥滚筒上，幅材保持在圆筒面与干燥丝之间以及反转圆筒之间，幅材位于外侧曲线侧。 干燥器组中的反转辊是具有开口度高于约10％，优选高于约20％的表面结构的开放辊，使得与钢丝一起行进的空气流通过 滚动到辊的内部，并且通过辊的开放表面结构作为空气流与电线一起进一步排出。

公开(公告)号：US5635034A

公开(公告)日：1997-06-03

申请号：US637554

申请日：1996-04-25

申请人： Olavi Viitanen ,  Raimo Virta

发明人： Olavi Viitanen ,  Raimo Virta

IPC分类号： D21F3/10

CPC分类号： D21F3/10

摘要： A method for removing air from a suction roll/suction cylinder and a suction roll/suction cylinder including a roll mantle, end flanges connected to the roll mantle and axle journals for revolvingly supported the roll mantle. The mantle has numerous perforations, holes or equivalent openings passing therethrough. The suction roll/suction cylinder is connected to a suction duct that passes onto the interior of the roll/cylinder and transfers a vacuum force therein. Air is drawn or sucked through the perforations into the interior of the roll mantle so as to press a paper web toward an outer face of the roll mantle. The suction roll/suction cylinder has a system of suction pipes connected with the suction duct and including at least one suction pipe into which air is guided and/or sucked from the vicinity of the inner face of the roll mantle of the roll/cylinder.

摘要翻译： 一种用于从抽吸辊/抽吸缸以及包括辊套的抽吸辊/抽吸缸排出空气的方法，连接到辊套的端部凸缘和用于旋转地支承辊套的轴颈。 地幔具有穿过其中的许多穿孔，孔或等效的孔。 抽吸辊/抽吸筒连接到吸入管道，该抽吸管道传递到辊/缸的内部并在其中传递真空力。 将空气通过穿孔吸入或吸入到辊罩的内部，以将纸幅朝向辊罩的外表面压紧。 抽吸辊/抽吸缸具有与吸入管连接的吸入管的系统，并且包括至少一个吸入管，空气从辊/缸的辊罩的内表面的附近被引导和/或吸入。

公开(公告)号：US06418639B1

公开(公告)日：2002-07-16

申请号：US09509965

申请日：2000-07-12

申请人： Raimo Virta ,  Pekka Saarikivi ,  Juha Kaihovirta ,  Kari Juppi ,  Nenad Milosavljevic

发明人： Raimo Virta ,  Pekka Saarikivi ,  Juha Kaihovirta ,  Kari Juppi ,  Nenad Milosavljevic

IPC分类号： F26B300

CPC分类号： D21F5/042 ,  D21F5/044

摘要： The invention concerns a method and a device in the dryer section of a paper/board machine. In the dryer section a normal single-wire draw is applied at least partly, in which method the web (W) is passed through the dryer group on support of a drying wire (H). The drying wire (H) presses the web (W) on the drying cylinders (Kn, Kn+1 . . . ) against the heated cylinder faces, and on the reversing cylinders or rolls (Sn, Sn+1 . . . ) between the drying cylinders (10) the web (W) remains at the side of the outside curve. There is one integrated device, through which a support suction and/or blowing is produced in order to improve the runability of the web (W) and to keep the web (W) in contact with the face of the wire, and through which same device, additionally, impingement blowing is produced in order to dry the web (W) and/or to control its tendency of curling.

摘要翻译： 本发明涉及纸/纸机的干燥部中的方法和装置。 在干燥器部分中至少部分施加正常的单线牵引，在该方法中，幅材（W）在干燥丝（H）的支撑物上通过干燥器组。 干燥线（H）将干燥滚筒（Kn，Kn + 1 ...）上的卷筒纸（W）压在加热的气缸面上，并且在反向滚筒或滚筒（Sn，Sn + 1 ...）之间 干燥筒（10）的卷筒纸（W）保持在外侧曲线的一侧。 存在一个集成装置，通过该装置产生支撑抽吸和/或吹送，以便提高幅材（W）的运行性能并使卷材（W）保持与导线的表面接触，并且通过该装置相同 装置，另外，产生冲击吹送以便干燥幅材（W）和/或控制其卷曲趋势。