[특허]Roll press for removing water from a web of paper using solid grooved roll and compressed air

Roll press for removing water from a web of paper using solid grooved roll and compressed air 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D21F-003/02
출원번호	US-0292359 (1988-12-30)
발명자 / 주소	Cowan Wavell (Montpelier VT) McGurk Stanley (Toronto CAX)
출원인 / 주소	Inotech Process Ltd. (LaSalle CAX 03)
인용정보	피인용 횟수 : 48 인용 특허 : 0

초록 ▼

A paper machine includes a press section in which the paper web is carried along between a pair of paper machine felts. A dewatering apparatus is included in the press section which consists of a pair of opposed press rollers, one on either side of the felts, with the rollers forming a nip. The rolls are pressed toward each other to compress the felts and the paper web to the maximum mechanical compression. Compressed air is passed through one roller at the nip to the other roller which includes an exhaust device for draining the water blown through by the compressed air. The air is passed under pressure at the nip to evacuate water from the pores of the compressed felts and web. When the paper advances from the nip into an environment at atmospheric pressure, the paper web is substantially free of water.

대표청구항 ▼

In the press section of a papermaking machine comprising a pair of paper machine felts for advancing a web of paper being formed, a dewatering apparatus consisting only of a pair of opposed press rolls in an environment at atmospheric pressure, the press rolls being provided one on either side of the felts forming a nip, means pressing the rolls towards each other at the nip to press the felts and the paper web to a maximum mechanical compression, means for providing an air flow across the nip, including means for supplying compressed air only to one of the rolls and exhaust means at the other of the rolls, said means for supplying compressed air only to one of the rolls being located by said one roll for supplying air under pressure across the roll at the nip, said one roll being in the form of a solid roll having grooves on the periphery thereof, wherein said one roll has axial parallel grooves extending axially of said one roll, and said means for supplying compressed air being located adjacent at least one end of said one roll for passing air through the peripheral axial grooves which form plenums therefor; and exhaust means located at the other of the rolls for draining water and receiving air across the roll at the nip such that the pores of the felt and the web of paper at the nip are being flushed of water displaced by the air being forced through at the nip and whereby, when the felts and the web of paper have passed the nip and into an atmospheric pressure environment, the water content of the felts and the web will have been greatly reduced, whereby the air is passed under pressure at the nip so formed to thereby evacuate water from the pores of the compressed felts and web at the nip and that as the felts and web exit from the nip at atmospheric pressure, the paper web remains substantially free of water.

이 특허를 인용한 특허 (48)

Herman, Jeffrey; Scherb, Thomas Thoroee; Silva, Luis Carlos; Walkenhaus, Hubert, Advanced dewatering system.
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Herman,Jeffrey; Scherb,Thomas Thoroee; Silva,Luiz Carlos; Walkenhaus,Hubert, Advanced dewatering system.
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Scherb, Thomas Thoroee; Herman, Jeffrey; Silva, Luiz Carlos; Walkenhaus, Hubert, Advanced dewatering system.
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Scherb, Thomas Thoroee; Herman, Jeffrey; Silva, Luiz Carlos; Walkenhaus, Hubert, Advanced dewatering system.
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Scherb,Thomas Thoroee; Herman,Jeffrey; Silva,Luiz Carlos; Walkenhaus,Hubert, Advanced dewatering system.
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Edwin X. Graf, Air press assembly for use in a paper-making machine.
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Hada Frank Stephen ; Hermans Michael Alan ; Isenhart Brian Wade ; Thoms Lowell Everett ; Tomsovic Charles Robert, Air press for dewatering a wet web.
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Hada Frank Stephen ; Hermans Michael Alan ; Tomsovic Charles Robert ; Lange David V. ; Kanitz Roger A. ; Hauser Richard D. ; Murry Patrick W. ; Rounds Doug A. ; Clarke Robert L., Air press for dewatering a wet web.
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Hada Frank Stephen ; Hermans Michael Alan ; Tomsovic Charles Robert ; Lange David Vincent ; Kanitz Roger Allen ; Hauser Richard D. ; Murry Patrick William ; Rounds Doug A. ; Clarke Robert Lawrence ; , Air press for dewatering a wet web.
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Hada Frank Stephen ; Hermans Michael Alan ; Isenhart Brian Wade ; Thoms Lowell Everett ; Tomsovic Charles Robert, Air press method for dewatering a wet web.
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Lidar Per-Ola,SEX, Apparatus and method for cleaning papermachine clothing.
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Hada Frank Stephen, Apparatus for maintaining a fluid seal with a moving substrate.
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Brogyanyi, Edgar; Hornhofer, Karl; Mausser, Wilhelm; Petschauer, Franz; Sbaschnigg, Johann, Device for removing water from a fibrous material strip.
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Walkenhaus, Hubert; Crook, Robert L.; Hayden, Calvin, Dewatering tissue press fabric for an ATMOS system and press section of a paper machine using the dewatering fabric.
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Beck David A., Fiber web lamination and coating apparatus having pressurized chamber.
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Lindsay Jeffrey Dean ; Hermans Michael Alan ; Hada Frank Stephen, Leakage control system for treatment of moving webs.
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Ensign Donald Eugene ; Dreisig Robert Charles ; Stelljes ; Jr. Michael Gomer ; Knight Wilbur Russell, Limiting orifice drying medium, apparatus therefor, and cellulosic fibrous structures produced thereby.
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Chen Shan Liang ; Hermans Michael Alan ; Hu Sheng-Hsin ; Kamps Richard Joseph ; Lindsay Jeffrey Dean, Low density resilient webs and methods of making such webs.
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Stelljes ; Jr. Michael Gomer ; Trokhan Paul Dennis ; Ensign Donald Eugene, Low wet pressure drop limiting orifice drying medium and process of making paper therewith.
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Hermans Michael Alan ; Behnke Sherry Lynn ; Gusky Robert Irving ; Hada Frank Stephen, Method for making cellulosic web with reduced energy input.
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Hermans Michael Alan ; Burazin Mark Alan ; Hada Frank Stephen ; Hong Sung Ho, Method for making soft tissue.
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Hermans Michael Alan ; Burazin Mark Alan ; Hada Frank Stephen ; Hong Sung Ho, Method for making soft tissue.
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Michael Alan Hermans ; Frank Stephen Hada, Method for making tissue sheets on a modified conventional crescent-former tissue machine.
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Michael Alan Hermans ; Frank Stephen Hada ; Steven Jack Hickey GB, Method for making tissue sheets on a modified conventional wet-pressed machine.
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Hermans Michael Alan ; Liang-Chen Shan ; Chen Fung-jou ; Druecke Frank Gerald ; Gusky Robert Irving ; Hada Frank Stephen ; Kamps Richard Joseph ; Tomsovic Charles Robert, Method of dewatering wet web using an integrally sealed air press.
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Beck, David A., Method of forming a semipermeable membrane with intercommunicating pores for a pressing apparatus.
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Druecke Frank Gerald ; Chen Shan Liang ; Hermans Michael Alan ; Hu Sheng-Hsin ; Kamps Richard Joseph, Method of producing low density resilient webs.
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Hermans, Michael Alan; Hada, Frank Stephen, Modified conventional wet pressed tissue machine.
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Ensign Donald E. (Cincinnati OH) Stelljes ; Jr. Michael G. (West Chester OH) Trokhan Paul D. (Hamilton OH), Multiple zone limiting orifice drying of cellulosic fibrous structures, apparatus therefor, and cellulosic fibrous struc.
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Ensign Donald E. (Cincinnati OH) Stelljes ; Jr. Michael G. (West Chester OH) Trokhan Paul D. (Hamilton OH), Multiple zone limiting orifice drying of cellulosic fibrous structures, apparatus therefor, and cellulosic fibrous struc.
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Ensign Donald E. (Cincinnati OH) Stelljes ; Jr. Michael G. (West Chester OH) Trokhan Paul D. (Hamilton OH), Multiple zone limiting orifice drying of cellulosic fibrous structures, apparatus therefor, and cellulosic fibrous struc.
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Beck David A., Paper making apparatus having pressurized chamber.
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David A. Beck, Paper making apparatus having pressurized chamber.
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Kanitz Roger A. ; Rogers Thomas D., Papermaking machine for forming tissue employing an air press.
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Kanitz, Roger A.; Rogers, Thomas D., Papermaking machine for forming tissue employing an air press.
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Kanitz, Roger A.; Rogers, Thomas D., Papermaking machine for forming tissue employing an air press.
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Kanitz, Roger A.; Rogers, Thomas D., Papermaking machine for forming tissue employing an air press.
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Kanitz,Roger A.; Rogers,Thomas D., Papermaking machine for forming tissue employing an air press.
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Roger A. Kanitz ; Thomas D. Rogers, Papermaking machine for forming tissue employing an air press.
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Herman, Jeffrey; Scherb, Thomas Thoroee; Silva, Luiz Carlos; Walkenhaus, Hubert, Press section and permeable belt in a paper machine.
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Herman,Jeffrey; Scherb,Thomas Thoroee; Silva,Luiz Carlos; Walkenhaus,Hubert, Press section and permeable belt in a paper machine.
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Beck David A., Pressing apparatus having chamber end sealing.
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Beck David A., Pressing apparatus having chamber sealing.
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David A. Beck, Pressing apparatus having semipermeable membrane.
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Ensign Donald Eugene ; Trokhan Paul Dennis ; Stelljes ; Jr. Michael Gomer, Reduced surface energy limiting orifice drying medium process of making and process of making paper therewith.
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Brown Dale A. ; Roerig Arnold J., Self loading controlled deflection roll.
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Beck David A., Semipermeable membrane for pressing apparatus.
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Scherb, Thomas T.; Da Silva, Luiz Carlos; Berardi, Rogerio; Oyakawa, Danilo, Twin wire for an ATMOS system.
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Roll press for removing water from a web of paper using solid grooved roll and compressed air 원문보기

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연합인증

Roll press for removing water from a web of paper using solid grooved roll and compressed air 원문보기

초록 ▼

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연구과제 타임라인

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