公开(公告)号：WO1992008844A1

公开(公告)日：1992-05-29

申请号：PCT/US1991007990

申请日：1991-10-28

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  EWALD, James, L.

IPC: D21F09/00

CPC classification number: D21F9/003 ,  D21F1/486

Abstract: A mechanism and method for initially dewatering a paper stock slurry between looped traveling forming wires (10, 11) wherein the wires pass over turning bars (14, 15; 16, 17), controlling the cross-machine curvature of the turning bars to compensate for variations in curvature due to temperature effects on the turning bar and to control the cross-machine curvature of the turning bar to a predetermined fixed shape for wide machines to control the travel of the wire over the bars by applying bending moments to a support beam (18, 19; 55, 56) for the turning bar such as by providing separate liquid chambers (30, 31; 34, 35) in the beam and directing (18a, 18b, 19a, 19b) heated or cooled water into the chambers to bend the bar to either a positive crown, to be straight or to a negative crown.

公开(公告)号：WO1992008003A1

公开(公告)日：1992-05-14

申请号：PCT/US1991007403

申请日：1991-10-07

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  CROUSE, Jere, W.

IPC: D21F03/02

CPC classification number: D21F3/0218 ,  D21F3/0281 ,  D21F3/04 ,  D21F3/045

Abstract: A method and apparatus for pressing water from a traveling paper web (W) in a papermaking machine running the web (W) through a press nip (N) having a hollow roll shell (10, 21, 35) with a deflection control means (11, 27) therein and heating the roll shell by passing heated lubricant into the roll shell laying the web against the roll shell a substantial distance prior to the nip and in one form, steaming (33, 38) the web before passing it through the nip. In another form, two nips (N-1, N-2) are provided with the same roll shell (41, 50) and the web is kept on the roll (8) between the two nips to be heated for facilitating the transfer of water from the web to a carrying felt (46, 55) in the nip.

Abstract translation: 一种在具有中空辊壳（10,21,35）的压榨压区（N）上运行纸幅（W）的造纸机中从行进纸幅（W）上按压水的方法和装置，具有偏转控制装置 11，27），并通过将加热的润滑剂通过辊筒将加热的润滑剂加热到卷筒外壳中，所述卷筒外壳在辊隙之前相对于卷筒外壳相当距离，并且以一种形式在纸幅通过之前蒸汽（33,38） 掐。 在另一种形式中，两个压头（N-1，N-2）设置有相同的辊壳（41,50），并且将幅材保持在待加热的两个压片之间的辊（8）上，以便于 水从纸幅到辊隙中的承载毡（46,55）。

公开(公告)号：WO1992005931A1

公开(公告)日：1992-04-16

申请号：PCT/US1991005991

申请日：1991-08-22

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  GANGEMI, Donald

IPC: B26F03/00

CPC classification number: B26F3/008 ,  B23K26/146 ,  B23K26/364 ,  B26F3/004

Abstract: A high pressure water jet (32) is used in conjunction with a relatively low power laser (34) to produce a smooth cut (C) in a traveling web (W). The cutting procedures produces a relatively small amount of fiber dust in the atmosphere surrounding the cutting operation. The water jet (32) severs the traveling web (W) into separate parts (Ws, Ws'), and the laser (34) is directed to the severed edges (E, E') to burn away the protruding ends of the paper fibers to produce a uniform, smooth cut (C) in both severed edges. A trough (18) is disposed on the side of the web opposite the water jet (32) and laser (34) to receive and collect the water severing the web and the fiber dust, and to diffuse the laser beam emissions.

公开(公告)号：WO1992002678A1

公开(公告)日：1992-02-20

申请号：PCT/US1991004780

申请日：1991-07-05

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  McCARTEN, Paul ,  SLAGOWSKI, Eugene

IPC: D21F03/02

CPC classification number: D21F3/0227 ,  D21F3/0236 ,  Y10S162/901 ,  Y10T428/2457

Abstract: A blanket (12) is disclosed for an extended nip press (10). The blanket (12) includes a woven base (16) having a first plurality of filaments (18) which are disposed in a machine direction (MD). The first plurality of filaments (18) have a modulus of elasticity which permits flexing of the blanket (12) during movement of the blanket (12) through the extended nip press (10). The base (16) also includes a second plurality of filaments (20-24) woven together with the first plurality of filaments (18) and disposed in a cross-machine direction (CD). The second plurality of filaments (20-24) have a modulus of elasticity which is higher than the modulus of elasticity of the first plurality of filaments (18) for inhibiting flexing of the blanket (12) in a cross-machine direction (CD). Thermo-setting resin (26) is applied to the base (16) such that the resin (26) is reinforced by the base (16). The resin (26) defines a plurality of vents (28 - 35) for permitting the escape of water in the liquid and vapor phase away from the extended nip press (10) during use thereof. The second plurality of filaments (20 - 24) prevent collapse of the vents (28 - 35) during use of the extended nip press (10) due to the higher modulus of elasticity.

Abstract translation: 公开了一种用于扩展夹压机（10）的毯（12）。 毯子（12）包括具有沿机器方向（MD）设置的第一多根细丝（18）的编织基座（16）。 第一多根细丝（18）具有弹性模量，其允许橡皮布（12）在橡皮布（12）通过延伸的压区压机（10）移动期间弯曲。 基部（16）还包括与第一多根细丝（18）一起编织并沿横向（CD）布置的第二多根细丝（20-24）。 第二多根细丝（20-24）的弹性模量比第一多根细丝（18）的弹性模量高，用于防止橡皮布（12）在横向（CD）上的弯曲， 。 将热固树脂（26）施加到基部（16）上，使得树脂（26）被基部（16）加强。 树脂（26）限定多个通风口（28-35），用于允许在使用期间将液体和气相中的水从扩展压区压机（10）中排出。 由于较高的弹性模量，第二多根细丝（20-24）防止在使用扩展压区压机（10）期间通气孔（28-35）的塌陷。

公开(公告)号：WO1991011698A1

公开(公告)日：1991-08-08

申请号：PCT/US1991000096

申请日：1991-01-10

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  ADAMS, Richard, J. ,  BAUM, Scott, A. ,  ROISUM, David, R. ,  OLIVER, Wlliam, K.

IPC: G01N03/30

CPC classification number: G01N3/48 ,  G01N33/34 ,  G01N33/346 ,  G01N2203/0282

Abstract: A method and apparatus for testing the hardness of wound rolls, such as paper rolls, which yields quantitative information which is reproducible from roll to roll and under various conditions of testing. The apparatus can be operated much like a backtender's stick, to simply strike the roll at a point where hardness is to be determined with a force variable between certain limits as determined by the operator using the stick. The apparatus includes an accelerometer (60) mounted in a striker (36) associated with circuitry (26) for producing signals (80, 82, 91, 94) relating to (a) the energy of the impact between the striker and roll and (b) the peak deceleration of the striker. Those signals are processed to produce a roll hardness measure, which can be correlated to a commonly used Rho scale if desired, and which is repeatable irrespective of the force used by the operator to cause the impact.

公开(公告)号：WO1991005103A2

公开(公告)日：1991-04-18

申请号：PCT/US1990005443

申请日：1990-09-25

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  FAGERLUND, Bertil, K., E.

IPC: D21C07/14

CPC classification number: D21C7/14 ,  D21C7/00

Abstract: An apparatus and method for treating cellulosic wood chips in a digestion process for the liberation of pulp in a caustic hydroxide solution at high pressures and temperatures by delivering preconditioned wood chips to a first chamber (10) and circulating a low temperature black liquor through the chamber (10) to preheat the chips, while continuously feeding the chips through the chamber (10) to a second chamber (21) at high temperature and pressure, circulating high temperature black liquor to the chips in the second chamber (21) to advance them to cooking temperature, feeding white liquor and the chips to a digester (33) for the digestion process over a predetermined period of time, and removing digested pulp and delivering the pulp to a washer with the black liquor for washing being utilized for the first chamber (10), and heating the white liquor through a heat exchange process with the high temperature black liquor.

Abstract translation: 一种用于在消化过程中处理纤维素木片的设备和方法，用于通过将预处理的木片输送到第一室（10）并使低温黑液循环通过所述室，以在高压和高温下在苛性碱氢氧化物溶液中释放纸浆 （10）预热芯片，同时在高温和高压下连续地将芯片通过腔室（10）送入第二腔室（21），将高温黑液循环到第二腔室（21）中的芯片上以使它们前进 烹调温度，将白液和碎片送入消化器（33）以进行消化处理预定的时间，并且除去消化的纸浆并将纸浆输送到洗涤器，用于洗涤的黑液用于第一室 （10），并通过与高温黑液的热交换过程加热白液。

公开(公告)号：WO1991000389A1

公开(公告)日：1991-01-10

申请号：PCT/US1990002147

申请日：1990-04-19

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  CROUSE, Jere, W. ,  PULKOWSKI, Jeffrey, H. ,  PORTER, Roy, J.

IPC: D21F03/02

CPC classification number: D21F3/0218

Abstract: A heated extended nip press apparatus (10) is disclosed for pressing water from a formed web (W). The apparatus (10) includes a frame (12) and a backing roll (14) rotatably supported by the press frame (12). A press device (16) is connected to the press frame (12) and movable relative to the backing roll (14). The press device (16) cooperates with the backing roll (14) for defining therebetween an extended nip (N) for the passage therethrough of the web (W). An endless looped blanket (18) extends through the extended nip (N) such that the web (W) is disposed between the blanket (18) and the backing roll (14). Additionally, the press device (16) includes an arrangement for selectively changing the pressure applied on the blanket (18) along a machine direction (MD) relative to a further pressure (P) applied for moving the press device (16) relative to the backing roll (14) such that optimum web properties are obtained and delamination of the pressed web (W) is inhibited.

公开(公告)号：WO1990002840A1

公开(公告)日：1990-03-22

申请号：PCT/US1989003014

申请日：1989-07-11

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  WEDEL, Gregory, L.

IPC: D21F03/10

CPC classification number: D21F5/042 ,  D21F3/10 ,  D21F5/04 ,  D21G9/0063

Abstract: A vacuum roll transfer apparatus (16) is disclosed for drying a web (W) extending through a single tier dryer section (10) of a paper machine. The apparatus (16) includes a rotatable perforate shell (18) having a first and a second end (20, 22). A stationary duct (24) is disposed within and along the length of the shell (18) between the ends (20, 22) of the shell (18). The duct (24) is connected to a source of partial vacuum (26) and the shell (18) defines a plurality of holes (28, 29, 30, 31, 32, 33, 34, 35, 36, 37) along the length thereof such that in use of the apparatus (16), when the duct (24) is connected to the source of partial vacuum (26), a partial vacuum is generated within a chamber (38) defined between the shell (18) and the duct (24). A flow restricting arrangement is disposed within the duct (24) for generating a greater vacuum level adjacent to at least one of the ends (20, 22) of the shell for facilitating threading of a tail (T) of the web (W).

Abstract translation: 公开了一种用于干燥延伸通过造纸机的单层干燥器部分（10）的卷材（W）的真空辊转运装置（16）。 装置（16）包括具有第一和第二端（20,22）的可旋转穿孔壳体（18）。 在壳体（18）的端部（20,22）之间并且沿壳体（18）的长度设置固定的管道（24）。 管道（24）连接到部分真空源（26），并且壳体（18）沿着沿着所述壳体（18）限定多个孔（28,29,30,31,32,33,34,35,36,37） 使得在使用装置（16）时，当管道（24）连接到部分真空源（26）时，在限定在壳体（18）与壳体（18）之间的室（38）内产生部分真空 导管（24）。 流动限制装置设置在管道（24）内，用于产生与壳体的至少一个端部（20,22）相邻的更大的真空度，以便于卷筒纸（W）的尾部（T）穿线。

公开(公告)号：WO1989005375A1

公开(公告)日：1989-06-15

申请号：PCT/US1988002988

申请日：1988-08-29

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  WEDEL, Gregory, L.

IPC: D21F05/04

CPC classification number: D21F5/04 ,  D21F5/042 ,  D21G9/0063

Abstract: An apparatus (10B) is described for maintaining a first and second lateral edge (38, 40) of a web (WB) in close conformity with a dryer felt (16B) of a papermaking machine. The apparatus (10B) includes a first dryer drum (11B) which is rotatable about an axis (42) which is parallel to the cross-machine direction (CM) of the web (WB). A second dryer drum (12B) is rotatable about an axis (44) which is spaced and parallel relative to the axis (42) of the first dryer drum (11B). An intermediate transfer roll (46) has an axis of rotation (48) disposed in a plane (P) parallel to, and between, the axes (42, 44) of the first and second drums (11B, 12B) such that the web (WB) and the felt (16B) extend contiguously around the first dryer drum (11B) and then around the transfer roll (46) and subsequently around the second drum (12B) in a serpentine configuration so that the transfer roll (46) and the felt (16B) define therebetween a pocket (30B). A first and second box (50, 52) are disposed within the pocket (30B) and adjacent to, respectively, the first and second lateral edges (38, 40) of the web (WB) for maintaining a partial vacuum within the pocket (30B) adjacent to the respective lateral edges such that the edges (38, 40) are drawn into close conformity with the felt (16B) which is disposed between the web (WB) and the boxes (50, 52) thereby inhibiting detachment of the respective lateral edges (38, 40) from the felt (16B) and subsequent wrinkling of the dried web (WB).

Abstract translation: 描述了一种用于将纸幅（WB）的第一和第二侧边缘（38,40）与造纸机的烘干机毡（16B）紧密一致的装置（10B）。 该设备（10B）包括可围绕平行于卷筒纸（WB）的跨机器方向（CM）的轴线（42）旋转的第一干燥器滚筒（11B）。 第二干燥器鼓（12B）能够围绕相对于第一干燥器鼓（11B）的轴线（42）间隔开并平行的轴线（44）旋转。 中间转印辊（46）具有设置在与第一和第二滚筒（11B，12B）的轴线（42,44）平行并且在第二和第二滚筒（11B，12B）的轴线（42,44）之间的平面（P）中的旋转轴线（48） （WB）和毛毡（16B）围绕第一干燥器鼓（11B）连续延伸，然后围绕传送辊（46）延伸并且随后围绕第二滚筒（12B）以蛇形构造延伸，使得传送辊（46）和 毛毯（16B）在其间限定袋（30B）。 第一和第二盒（50,52）设置在所述袋（30B）内并且分别邻近所述卷材（WB）的第一和第二侧边缘（38,40），用于将所述袋内的部分真空保持 30B），使得所述边缘（38,40）被拉伸成与设置在所述纤维网（WB）和所述盒（50,52）之间的毡（16B）紧密一致，从而阻止所述边缘 相应的来自毡（16B）的侧边缘（38,40）和随后的干燥纤维网（WB）起皱。

公开(公告)号：WO1989001542A1

公开(公告)日：1989-02-23

申请号：PCT/US1988002363

申请日：1988-07-15

Applicant: BELOIT CORPORATION

Inventor： BELOIT CORPORATION ,  SPEAK, John, M.

IPC: D21G01/02

CPC classification number: F16C13/028 ,  D21G1/022 ,  D21G1/0226

Abstract: A controlled deflection roll of the self-loading type has a shaft (12) about which a tubular shell (11) is disposed. The roll shell (11) is rotatably mounted on bearings (25) at either end which, in turn, are mounted about corresponding bearing rings (22). The bearing rings (22) are spaced about the shaft and are pivotally linked with the shaft at either end with a pair of pivot arms (23, 24). Each of the pivot arms (23, 24) at either end of the roll have one end pivoted (32, 25) to the corresponding bearing ring and the other end pivoted (33, 34) to the shaft with both the shaft pivots and bearing ring pivots being located diametrically opposite one another with respect to the longitudinal axis of the shaft. This arrangement allows approximately straight line transverse movement of the roll shell relative to the longitudinal axis of the shaft about the pivot connections. The controlled deflection roll can thereby be loaded into nipping engagement with another roll and unloaded solely by pressure means disposed between the shaft and the inner surface of the roll shell without requiring movement of the shaft.