公开(公告)号：US5744007A

公开(公告)日：1998-04-28

申请号：US706915

申请日：1996-09-03

申请人： Paul Dennis Trokhan ,  Donald Eugene Ensign

发明人： Paul Dennis Trokhan ,  Donald Eugene Ensign

IPC分类号： D21F1/52 ,  D21F2/00 ,  D21F11/00

CPC分类号： D21F2/00 ,  D21F1/52 ,  D21F11/006

摘要： A papermaking vacuum apparatus having a web-facing surface adapted to support a papermaking belt and comprising a head, a body and at least one vacuum slot disposed in the head and defining an aperture on the web-facing surface. The vacuum slot is in fluid communication with the web-facing surface and extends from the web-facing surface to the body which is in further fluid communication with a vacuum source. The web-facing surface comprises a textured area in the region of the web-facing surface juxtaposed with the aperture defined by the vacuum slot. This textured area creates a leakage of at least about 35 Marlatts at a pressure differential of 7 inches of Mercury. This leakage eliminates the vacuum seal between a smooth backside of the papermaking belt and the web-facing surface of the vacuum apparatus.

摘要翻译： 一种造纸真空装置，具有面向卷筒纸的表面，其适于支撑造纸带并且包括头部，主体和布置在头部中的至少一个真空槽，并且在面向卷筒纸的表面上限定孔。 真空槽与面向卷筒纸的表面流体连通，并且从卷筒纸面向表面延伸到与真空源进一步流体连通的主体。 面向卷筒纸的表面包括与由真空槽限定的孔平行布置的卷筒纸表面的区域中的纹理区域。 这种纹理化区域在7英寸汞柱的压力差下产生至少约35马瓦的泄漏。 这种泄漏消除了造纸带的光滑背面与真空装置的卷筒纸表面之间的真空密封。

公开(公告)号：US5607554A

公开(公告)日：1997-03-04

申请号：US433609

申请日：1995-05-03

申请人： Antti Poikolainen

发明人： Antti Poikolainen

IPC分类号： D21F1/52 ,  D21F1/48 ,  D21F9/00 ,  D21F9/02 ,  D21F1/00 ,  D21F1/54

CPC分类号： D21F9/003 ,  D21F1/48

摘要： A loading box adjustable in zones thereof for a former of a paper or board machine. The former comprises a twin-wire section including two wires placed one above the other and running in the same transfer direction. In the twin-wire section, a drain box is mounted at one side of the wires to remove water out of a fibrous pulp running between the wires. At the opposite side of the wires, a loading box is mounted and is provided with loading ribs arranged in the transverse direction in relation to the transfer direction and which extend across the web width. The loading ribs are loaded toward the bottom of the drain box in order to produce a desired compression in the fibrous pulp running between the wires. The loading box is provided with loading members arranged to produce a locally raising or lowering force applied to the loading ribs in the direction transverse to the transfer direction. The force is applied simultaneously to at least two successive loading ribs to profile the compression force applied by the loading ribs to the fibrous pulp in the transverse direction.

摘要翻译： 用于纸张或纸板机的前者的区域中的可调节的装载箱。 前者包括一个双线部分，包括一个彼此并排放置并以相同传送方向运行的两根线。 在双电线部分中，排水箱安装在电线的一侧，以从电线之间的纤维纸浆中除去水分。 在电线的相对侧，安装有装载箱，并且在相对于传送方向的横向方向上设有装载肋，并且横过卷材宽度延伸。 装载肋朝向排水箱的底部装载，以便在电线之间运行的纤维纸浆中产生所需的压缩。 装载箱设置有装载构件，其布置成产生沿着与传送方向横切的方向施加到加载肋的局部升高或降低力。 该力同时施加到至少两个连续的加载肋，以将由加载肋施加的压缩力沿横向方向分布到纤维纸浆。

公开(公告)号：US5489365A

公开(公告)日：1996-02-06

申请号：US237781

申请日：1994-05-04

申请人： Borje Wahlstrom

发明人： Borje Wahlstrom

IPC分类号： D21F9/00 ,  D21F1/00 ,  D21F1/52

CPC分类号： D21F9/006 ,  D21F9/003

摘要： An adjustable twin-wire gap former is provided for forming a fiber web from an aqueous fiber suspension. The twin-wire gap former is arranged so that the first and second coacting, traveling, looped forming wires have juxtaposed sections, which define a forming zone and confine a paper web therebetween during its formation. A first means for providing suction is located adjacent the first wire fabric in the forming zone for draining water from the suspension and a second means for providing suction is located adjacent the second wire fabric in the forming zone. This second means for providing suction is movable toward and away from the second wire thus adjusting the geometry of the forming zone. Preferably a central operator controls the vacuum in the suction boxes and the pressure exerted by the boxes onto the forming fabric independently of each other.

摘要翻译： 提供了一种可调节的双网间隙成形器，用于从水性纤维悬浮液形成纤维网。 双线间隙成形器布置成使得第一和第二共同行进的环形成形线具有并置部分，其限定成形区并且在其形成期间将纸幅限制在其间。 用于提供抽吸的第一装置位于成形区域中的第一丝网附近，用于从悬浮液排出水，并且用于提供抽吸的第二装置位于成形区域中的第二丝网附近。 用于提供抽吸的第二装置可以朝向和远离第二线移动，从而调节成形区的几何形状。 优选地，中央操作者将抽吸箱中的真空和由盒子施加到成形织物上的压力彼此独立地控制。

公开(公告)号：US5466343A

公开(公告)日：1995-11-14

申请号：US128470

申请日：1993-09-28

申请人： Matti Kankaanpaa

发明人： Matti Kankaanpaa

IPC分类号： D21F1/52 ,  D21F3/10 ,  D21F1/48

CPC分类号： D21F3/10 ,  D21F1/52 ,  Y10S162/07

摘要： A suction roll for a paper machine in which a stationary suction shoe is arranged inside a revolving mantle loop and is connected to a source of negative pressure. The mantle loop is a substantially water-receiving and permeable fabric-sock loop that receives water and is, in a preferred embodiment, supported by means of guide members arranged inside the loop. The suction shoe is provided with a permeable guide deck against which the inner face of the fabric-sock loop glides.

摘要翻译： 一种用于造纸机的吸辊，其中固定式吸力鞋布置在旋转地幔环内并连接到负压源。 地套环是接受水的基本上是水接收和可渗透的织物 - 套环，并且在优选实施例中，通过布置在环内的引导构件来支撑。 吸力鞋设置有可渗透的导向面板，织物 - 袜子环的内表面与该可滑动导向面滑动。

公开(公告)号：US5328569A

公开(公告)日：1994-07-12

申请号：US905256

申请日：1992-06-26

申请人： Dennis C. Cronin

发明人： Dennis C. Cronin

IPC分类号： D21F1/52 ,  D21F2/00

CPC分类号： D21F2/00 ,  D21F1/52

摘要： A curved suction box apparatus is disclosed for guiding a web towards a nip of a nip press. The apparatus includes an initial shoe which is disposed upstream relative to the nip, the shoe defining a convex surface for guiding the web. A box is disposed downstream relative to the initial shoe for guiding the web from the initial shoe. The box is connected to a partial vacuum.

摘要翻译： 公开了一种用于将卷筒纸朝向辊隙压区的辊隙引导的弯曲抽吸箱装置。 该装置包括一个初始的鞋，其设置在相对于辊隙的上游，靴形件限定用于引导幅材的凸形表面。 箱子相对于初始的鞋子设置在下游，用于从初始鞋子引导织物。 箱子连接到部分真空。

公开(公告)号：US4985121A

公开(公告)日：1991-01-15

申请号：US396131

申请日：1989-08-21

申请人： Thomas G. Gulya ,  Gary V. Schultz ,  Ronald A. Arnold

发明人： Thomas G. Gulya ,  Gary V. Schultz ,  Ronald A. Arnold

IPC分类号： D21F1/52

CPC分类号： D21F1/523

摘要： A component to be used in a papermaking machine for extracting moistu re from a paper web. The component includes a supporting structure and a water permeable member is mounted on the supporting structure and is adapted to support a paper web. The water permeable member comprises a rigid mass of ceramic foam having a plurality of interconnected cells. The ceramic foam has an air permeability in the range of 10 to 1,000 cubic feet per square foot of surface area per minute and has a density of 5 to 100 lbs/cubic foot. When a pressure differential is applied to the permeable member to the paper web, moisture will be extracted from the web and passes through the permeable member.

摘要翻译： 用于造纸机中用于从纸幅提取湿气的组分。 该部件包括支撑结构，并且透水部件安装在支撑结构上并且适于支撑纸幅。 透水部件包括具有多个互连电池的刚性质量的陶瓷泡沫。 陶瓷泡沫的透气度为每分钟表面积10至1,000立方英尺/平方英尺，密度为5至100磅/立方英尺。 当压差被施加到纸幅的可渗透构件时，水分将从纸幅提取并通过可渗透构件。

公开(公告)号：US4541896A

公开(公告)日：1985-09-17

申请号：US578216

申请日：1984-02-08

申请人： Jurgen Banning

发明人： Jurgen Banning

IPC分类号： D21F1/48 ,  D21F1/00 ,  D21F1/52 ,  D21F1/50

CPC分类号： D21F1/52

摘要： A suction box coordinated with a dandy roll and serving the dehydration of paper webs features on its ends respective deckle slides wherein each deckle slide is of a design such that it elastically yields to the peripheral face of the dandy roll. Each deckle slide is wear-resistant and adaptable to varying dandy roll diameters and dipping depths. Thus, each deckle slide comprises a lamella package which extends with its longitudinal axis in the direction of web travel. The lamella package includes a plurality of parallel, rigid lamellae shiftable relative to one another and lying in respective planes extending generally perpendicular to the direction of web travel.

摘要翻译： 一个与一个滚花滚筒配合并用于纸幅脱水的抽吸盒，其端部分别包括一个玻璃滑板，其中每个滑板的设计使得它能够弹性地屈服于滚花滚筒的外周面。 每个滑梯都是耐磨的，适用于不同的轮盘直径和浸渍深度。 因此，每个卡片滑动件包括薄片包装，其沿其纵向轴线沿着卷筒纸行进的方向延伸。 薄片包装包括多个平行的刚性薄片，它们可相对于彼此移位并且位于大致垂直于卷筒纸行进方向延伸的相应平面中。

公开(公告)号：US4425189A

公开(公告)日：1984-01-10

申请号：US335693

申请日：1981-12-30

申请人： Gen Mimura

发明人： Gen Mimura

IPC分类号： D21F1/52 ,  D21F1/00 ,  D21F1/48 ,  D21F1/54

CPC分类号： D21F1/483

摘要： A dehydrating blade for a paper machine comprising a surface portion made of ceramics, a base portion made from a synthetic resin material and having a T groove on the undersurface thereof, and a reinforcing material the top portion of which contacts with the undersurface of the surface portion and is placed in a groove formed by two projecting portions formed on the undersurface of the surface portion and which is buried in the base portion, is improved in preventing the blade from warping. When the base portion has on or more slits therein, the warping of the blade can be prevented completely.

摘要翻译： 一种用于造纸机的脱水刀片，包括由陶瓷制成的表面部分，由合成树脂材料制成并在其下表面上具有T形槽的基部，以及其顶部与表面的下表面接触的增强材料 并且被放置在由形成在表面部分的下表面上并被埋在基部中的两个突出部分形成的凹槽中，改善了防止叶片翘曲的凹槽。 当基部具有多个狭缝时，可以完全防止叶片翘曲。

公开(公告)号：US4359828A

公开(公告)日：1982-11-23

申请号：US235313

申请日：1981-02-17

申请人： Keith V. Thomas

发明人： Keith V. Thomas

IPC分类号： D21F1/50 ,  D21F1/52 ,  D21F5/04 ,  F26B13/08

CPC分类号： D21F5/04 ,  D21F1/50 ,  D21F1/52 ,  D21F5/042

摘要： An improved vacuum box is described for holding a paper web onto a supporting fabric wherever velocity stresses would otherwise separate the web from its supporting fabric and expose the web to those stresses. Specially shaped vacuum boxes are fitted into the dryer "pockets" formed between the rows of a double row of adjacent drying cylinders and the web traveling a serpentine path between them. Pressure differential zones of the box hold the web onto its supporting fabric as the web and fabric travel between heated drying cylinders. A first zone leads the departure of the web and fabric from the web-wrapped cylinder to ensure that the web is positively held to the fabric as it leaves the cylinder. A second arcuate suction zone adjacent a fabric-wrapped cylinder evacuates grooves in the adjacent cylinder. This system holds the web onto its fabric, overcoming centrifugal stresses on the web, as the web-fabric combination passes about a cylinder with the fabric in direct contact with the cylinder and the web in indirect contact. A third pressure differential zone ensures the web is held to its supporting fabric as it travels from the fabric-wrapped cylinder to the next web-wrapped cylinder in the drying sequence. The vacuum box is provided with seals between box surfaces and the fabric that reduce air leakage into the box yet accommodate waste paper passing between the drying cylinder surfaces and box surfaces without damage to the box or fabric. Box end seals perform a similar function. The end seal is provided with a spring and pivot arrangement which cooperate to accommodate waste. The top portion of the vacuum box is a curved surface designed to deflect at least a portion of the stray currents that typically flow in the dryer pockets and tend to lift the web from its supporting fabric. While the suction surface zones are generally open surfaces, a roller wearing surface may be provided which reduces the wear of the felt in passing through the vacuum box suction zones. The vacuum box may be compartmentalized across the width of the machine to permit reducing vacuum demand during start-up of the paper web through the machine.

公开(公告)号：US4321108A

公开(公告)日：1982-03-23

申请号：US184987

申请日：1980-09-08

申请人： Denis A. Goddard ,  Louis E. Dennis, Jr.

发明人： Denis A. Goddard ,  Louis E. Dennis, Jr.

IPC分类号： D21F9/02 ,  D21F1/00 ,  D21F1/48 ,  D21F1/52 ,  D21F1/54

CPC分类号： D21F1/483

摘要： A fourdrinier table assembly of a length to underlie a substantial portion of the forming length of a traveling fourdrinier wire in a paper making machine, and having a plurality of supporting rails carried by supporting structure in side-to-side spaced relation to one another and arranged to span the forming length portion in the machine direction below the fourdrinier wire, a series of elongate dewatering foils being carried by and extending in cross machine direction across the supporting rails in spaced relation to one another along the length of the rails and adapted to act in dewatering relation with respect to the underside of the traveling fourdrinier wire. The foils are retained adjustably and replaceably on the rails. The supporting structure for the rails comprises beams extending in cross machine direction and spaced from one another in the machine direction.

摘要翻译： 一种长网架组件，其长度在造纸机中位于移动的长网的成形长度的大部分的基础上，并且具有多个支撑轨道，所述多个支撑轨道由支撑结构以彼此间隔开的间隔开来承载; 布置成跨越长网线在机器方向上跨越成形长度部分，一系列细长的脱水箔沿横向延伸穿过支撑轨道并沿着轨道的长度彼此间隔开地延伸并且适于 对于旅行的长网线的下侧，脱水关系起作用。 箔片可以可调节地和可替换地保持在轨道上。 轨道的支撑结构包括在机器方向上延伸并在机器方向彼此间隔开的梁。