81 |
MONITORING OSCILLATING COMPONENTS |
US14736010 |
2015-06-10 |
US20160363498A1 |
2016-12-15 |
KERRY D. FIGIEL |
A sensor signal is generated from a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a nip between the sensing roll and a mating roll during each rotation of the sensing roll. An oscillating component such as a doctor blade or cleaning shower affects a web of material upstream from the nip. Each sensor generates a sensor signal upon entering the nip. A periodically occurring starting reference is generated that is associated with each oscillation of the oscillating component and the signal generated by each sensor is received so that a particular one of the sensors which generated the signal is determined and one of a plurality of tracking segments associated with the oscillating component is identified. The signal is stored to associate the sensor signal with the identified one tracking segment. |
82 |
COUNT-BASED MONITORING MACHINE WIRES AND FELTS |
US14735892 |
2015-06-10 |
US20160363496A1 |
2016-12-15 |
KERRY D. FIGIEL |
Collecting data includes generating a sensor signal from each of a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a region of a nip between the sensing roll and mating roll during each rotation of the sensing roll; wherein a web of material travels through the nip and a continuous band contacts a region of the web of material upstream from or at the nip. A periodically occurring starting reference is generated associated with each rotation of the continuous band and the signal generated by each sensor is received so that the one of the plurality of sensors which generated this signal is determined and one of a plurality of tracking segments associated with the continuous band is identified. The signal is stored to associate the respective sensor signal with the identified one tracking segment. |
83 |
Papermaking additives for roll release improvement |
US13214472 |
2011-08-22 |
US08865263B2 |
2014-10-21 |
Davit E. Sharoyan; Tien-Feng Ling; Scott T. Schnelle |
Compositions and methods for reduction in adhesion between wet paper web and roll surfaces in papermaking process are disclosed. The method is particularly useful for improvements in press section roll release. |
84 |
Device and method for producing a material web |
US14056619 |
2013-10-17 |
US08728277B2 |
2014-05-20 |
Joao V. Boechat; Thomas Scherb; Luiz C. Silva; Rogerio Berardi; Daniela Reis |
A method to dewater a fibrous web includes directing the fibrous web through a first press zone defined between a revolving permeable belt and a revolving permeable support belt and having a first press zone length. The fibrous web is arranged lying between the revolving permeable belt and the revolving permeable support belt. A fluid is caused to flow through the permeable belt, the fibrous web and the support belt at least over a section of the first press zone length. The fibrous web is dewatered in a second press zone following the first press zone and defined between the revolving permeable belt and the revolving permeable support belt, the second press zone having a second press zone length. The fibrous web is led through the second press zone between the permeable belt and the support belt, the permeable belt and the support belt each having a different compressibility. |
85 |
Device and method for producing a material web |
US13749182 |
2013-01-24 |
US08580083B2 |
2013-11-12 |
Joao V. Boechat; Thomas Scherb; Luiz C. Silva; Rogerio Berardi; Daniela Reis |
A method to dewater a fibrous web includes directing the fibrous web through a first press zone defined between a revolving permeable belt and a revolving permeable support belt and having a first press zone length. The fibrous web is arranged lying between the revolving permeable belt and the revolving permeable support belt. A fluid is caused to flow through the permeable belt, the fibrous web and the support belt at least over a section of the first press zone length. The fibrous web is dewatered in a second press zone following the first press zone and defined between the revolving permeable belt and the revolving permeable support belt, the second press zone having a second press zone length. The fibrous web is led through the second press zone between the permeable belt and the support belt, the permeable belt and the support belt each having a different compressibility. |
86 |
METHODS AND APPARATUS FOR FORMING FLUFF PULP SHEETS |
US13398144 |
2012-02-16 |
US20130213594A1 |
2013-08-22 |
JYRKI T. JAAKKOLA; JAMES E. SEALEY |
Processes for making fluff pulp sheets mechanically eliminate many unwanted fiber-to-fiber bonding (fiber bundles) in the sheet. Pulp slurry is deposited on a moving bottom forming wire to form a stock web. Pulp slurry is brought into contact with a moving top forming wire. The stock web is subjected to up and down dewatering creating separately formed layers to reduce fiber-to-fiber bonding. The stock web can be subjected to strong pulsating shear forces as it is being advanced along the bottom forming wire to break fiber bundles. The pulp slurry can be deposited on the bottom forming wire utilizing a headbox with dilution control to selectively adjust the concentration of the pulp slurry. Shoe presses can be used to dewater the web after it is subjected to the pulsating shear forces. |
87 |
THROUGH AIR DRIED PAPERMAKING MACHINE EMPLOYING AN IMPERMEABLE TRANSFER BELT |
US12434878 |
2009-05-04 |
US20100230060A1 |
2010-09-16 |
Robert Stanley Ampulski |
A papermaking machine for making uncreped through air dried paper having a forming section, a press section, and a drying section is disclosed. The paper web is pressed between two press members while enclosed between a press felt and a transfer belt having non-uniformly distributed microscopic depressions in its surface. The web follows the transfer belt from the press to a transfer point at which the web is transferred via a suction transfer device onto a structuring fabric. The web is then dried with a through air dryer. |
88 |
TRANSFER BELT |
US12606576 |
2009-10-27 |
US20100133071A1 |
2010-06-03 |
Matthias Schmitt; Klaus Hermann; Kjell Anders Karlsson |
A transfer belt for carrying a fibrous web and a papermaking or similar machine. The transfer belt consists of a supporting substrate of a polymer foam and a reinforcement layer of aramid or glass fiber in either fabric or layer foam and a release layer that overlies and is bonded to the supporting substrate. The release layer is formed from a material promoting release of the fibrous web. The release layer may be selected from a variety of materials. The layers each contribute their own function to the operation of the belt to provide superior performance. |
89 |
Method and Device for Applying a Coating Medium in a Machine Used for Producing a Fiber Web |
US11658691 |
2005-07-25 |
US20080314544A1 |
2008-12-25 |
Wilhelm Gansberger; Martin Vogt; Georg Bacovsky |
Disclosed is a machine for producing a paper web, cardboard web, or other fiber web (1), comprising a press section (2) which is provided with at least one press nip (5) formed by two squeeze rollers (3, 4) and in which a device (6, 7) for applying a medium, particularly starch, is disposed. The fiber web (1) can be guided through the press nip (5) along with a band (8). The inventive machine is characterized in that the device (6, 7) rests against at least one of the squeeze rollers (3, 4) for indirectly applying the medium to the fiber web (1). |
90 |
SYSTEM AND METHOD TO CONTROL PRESS SECTION DEWATERING ON PAPER AND PULP DRYING MACHINES USING CHEMICAL DEWATERING AGENTS |
US12059425 |
2008-03-31 |
US20080179028A1 |
2008-07-31 |
David Ira Weinstein; Michael Robert St. John; Rodney H. Banks; James L. Thomas |
The present invention provides an automatic control system, method and paper manufacturing machine using such control system for automatically controlling the amount of press section dewatering via the metered application of chemical dewatering agents applied to a paper web in a paper manufacturing process. The control system includes a feedback controller for controlling the amount of chemical dewatering agent applied to a paper web, and a monitoring device for obtaining a measurement of the moisture of the paper web exiting the press section. |
91 |
Machine and Method for the Production of a Web of Fiber Material with an Increased Volume |
US11660842 |
2005-08-05 |
US20070267161A1 |
2007-11-22 |
Susanne Berger |
A machine for the production of a web of paper or other fiber material (1, 6, 17, 37), comprising a belt (14, 26, 43), wherein the length of the belt (14, 26, 43) is elastically extendable, the web of fiber material (1, 6, 17, 37) can be fed to the belt (14, 26, 43) when the belt (14, 26, 43) is in extended state and the belt (14, 26, 43) can be slackened when the web of fiber material (1, 6, 17, 37) is placed thereon, such that the web of fiber material (1, 6, 17, 37) is compressed and the adhesion forces between the web of fiber material (1, 6, 17, 37) and the belt (14, 26, 43) are sufficiently high in order to avoid the formation of folds in the compressed web (1, 6, 17, 37). |
92 |
Use of a transfer belt for a soft tissue paper machine |
US09663333 |
2000-09-18 |
US06743339B1 |
2004-06-01 |
Göran Nilsson; Bo-Christer Åberg |
Use of an essentially impermeable transfer belt (16) for a soft tissue paper machine for conducting a soft tissue web (1) through a shoe press nip in the press section of the paper machine, and from the shoe press nip to a Yankee cylinder (5) in the dryer section of the paper machine in a closed draw. The Yankee cylinder forms, together with a transfer means (17), a transfer nip for transferring the soft tissue web from the transfer belt to the Yankee cylinder. The transfer belt comprises a carrier and an elastically compressible polymer layer on its side facing the web, the polymer layer having a hardness between 50 and 97 Shore A and having a web-contacting surface which has a pressure-sensitive, resettable degree of roughness, the web-contacting surface having a degree of roughness in a non-compressed state of Rz=2-80 &mgr;m, measured according to ISO 4287, Part I, and a lower degree of roughness of Rz=0-20 &mgr;m when the polymer layer is compressed by a linear load of 20-220 kN/m applied to the essentially impermeable transfer belt as measured in a non-extended press nip. |
93 |
Moisture cross profile |
US10032012 |
2001-12-31 |
US06655195B2 |
2003-12-02 |
Joachim Grabscheid; Ulrich Begemann; Oswald Satzger; Wolfgang Mayer; Ralf Rziha; Wolfgang Bamberger; Georg Kleiser; Thomas Rühl |
Process for determining disturbances of a moisture cross profile of a fibrous material web in a paper making machine, a paper making machine, and a measuring arrangement for measuring the disturbances, the process including guiding the fibrous material web by way of at least one water-permeable belt and collecting and draining off water released from the belt. The water is collected by several sections separated from one another. The process further includes measuring per time unit, the amount of water in each section, wherein the sections extend at right angles to a web running direction over only a partial section of the fibrous material web. The paper making machine includes at least one water-permeable belt, the belt being wrapped around a roll. The measuring arrangement includes a water collection device having the form of one of a trough or channel. |
94 |
Method to reduce the adhesion of a damp fibrous material web to a rotating roll |
US15334498 |
1998-09-15 |
US6436239B2 |
2002-08-20 |
KUSTERMANN MARTIN |
Method to reduce adhesion of a damp fibrous material web, e.g., a paper or material web, to a rotating roll. The method includes producing a steam cushion between the rotating roll and the fibrous material web. |
95 |
Water draining device |
US09758243 |
2001-01-12 |
US20010010259A1 |
2001-08-02 |
Karl
Steiner; Robert
Wolf; Hans
Prinzing |
Water draining device for a paper machine or the like, in particular for a felted press of such a paper machine, including a receiving tank extending at least essentially over the machine width. The receiving tank includes a first chamber that receives arriving water and is under ambient pressure, and a second chamber that is connected to the first chamber and is under vacuum, into which the water collecting in the first chamber is aspirated and from which the water is eventually drained. A water receiving device of improved efficiency is also provided by forming a water receiving device by at least one suction channel projecting into the wedge-shaped area between the upper press roll and the dewatering belt, and extending transverse to the pulp web, which suction channel is connected to a source of reduced pressure. |
96 |
METHOD TO REDUCE THE ADHESION OF A DAMP FIBROUS MATERIAL WEB TO A ROTATING ROLL |
US09153344 |
1998-09-15 |
US20010007279A1 |
2001-07-12 |
DR. MARTIN
KUSTERMAN |
Method to reduce adhesion of a damp fibrous material web, e.g., a paper or material web, to a rotating roll. The method includes producing a steam cushion between the rotating roll and the fibrous material web. |
97 |
Suction box |
US961990 |
1997-10-31 |
US5972170A |
1999-10-26 |
Erwin Hund; Peter Kahl; Andreas Meschenmoser |
A suction box for use in a press arrangement in a machine for producing a paper or cardboard web. The suction box includes at least one suction side suctioning the fibrous pulp sheet onto a transport side of at least one felt belt. The suction box further includes at least one non-suction side and at least one slit. A vacuum is created by having air blown out of at least one slit. The vacuum occurs along the felt belt in a run direction of the felt belt. The slit is positioned at an edge of at least one non-suction side of the suction box. The suction box may be disposed on an exit side of a press slit of the press arrangement. The press slit is adapted to treat the fibrous pulp sheet. At least one felt belt is guided, simultaneously with the fibrous pulp sheet, through the press slit. Upon exiting the press slit, the fibrous pulp sheet is suctioned onto at least one felt belt by the suction box. |
98 |
Coupling construction between an extended-nip roll and a backup roll |
US840137 |
1997-04-11 |
US5850785A |
1998-12-22 |
Oiva Vallius |
A coupling construction between an extended-nip roll including a non-revolving central axle supported by bearings which permit angular deflection of the non-revolving axle and a backup roll. Loading members are mounted on the non-revolving axle for pressing a loading shoe toward the backup roll. The extended-nip roll includes a flexible glide-belt mantle whereby a paper web or board web passes through the nip between the glide-belt mantle and the backup roll. The belt mantle revolves on support of separate bearings. The extended-nip roll and backup roll are interconnected from the bearing housings at the ends of the rolls by tie bolts which include a nut at one end which is threaded onto the threading at the end of the tie bolt. The tie bolt is associated with pre-tightening equipment at the other end of the tie bolt and is passed through bolt holes provided in the bearing housings to be coupled together. The other end of the tie bolt has the threading with which the pre-tightening equipment is coupled. |
99 |
Top roll lifting arrangement for a press in a papermaking or boardmaking
machine |
US719474 |
1996-09-25 |
US5670022A |
1997-09-23 |
Roland Bengtsson |
A top roll lifting arrangement for a roll press in a press section of a papermaking or boardmaking machine where the roll press includes a top roll and a bottom roll, the rolls being opposed and parallel and having main axes defining a press plane and forming between them a press nip. The press has a framework including two side frames in parallel relationship to each other, one located on the drive side of the machine and the other one on the tender side of the machine. Each side frame has a first vertical column upstream of the press nip and a second vertical column downstream of the press nip. The upper roll is carried by a brackets extending between the upstream and downstream vertical columns. The brackets have bevelled ends that co-operate with inclined surfaces of plate members on the vertical columns. |
100 |
Support connections |
US540066 |
1995-10-06 |
US5664903A |
1997-09-09 |
Andreas Meschenmoser |
Support connections. Support connection are provided between two rolls, with the roll covering of at least one roll being journalled on a carrier via a plurality of support elements as well as being displaceable relative to the carrier along the pressure plane, with support portions that receive the carrier being connected via elongated connection parts, having thickened portions on both ends thereof, with the thickened portions being connected in a form-locking manner with respective recesses of the support parts in a removable manner, with the connection parts, between the thickened portions, in a direction parallel with the pressure plane, being substantially longer than laterally extending with respect thereto and, between the thickened portions, at least one elongated opening being provided therein, with the opening dividing the connection parts in the direction of the roll axis. |