With Beating, Refining, And/or Disintegrating Means Patents (Class 162/261)
  • Patent number: 11072887
    Abstract: A compactly configurable device that classifies material containing fiber can more reliably recover classified content. A classifier has a mesh disc with numerous holes, and separates screenings that pass through the holes from remnants that do not pass through; a defibrated material spray nozzle disposed to one side of the mesh disc sprays defibrated material containing fiber onto the mesh disc; a suction conduit disposed to the other side of the mesh disc suctions the waste screenings that pass through the holes; and a recovery conduit disposed on the one side of the mesh disc suctions the processing feedstock that do not pass through the holes and in the mesh disc and remain on the mesh disc. The mesh disc is disposed so the a position of the holes can move from a spraying position opposite the defibrated material spray nozzle to a suction position opposite the recovery conduit. The recovery conduit suctions, at the suction position, processing feedstock that was left at the spraying position.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 27, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Naotaka Higuchi, Yuta Inagaki
  • Patent number: 11005133
    Abstract: A sheet manufacturing apparatus includes a second web forming unit that processes fibers into a web shape, a sheet forming unit that pinches and transports a second web processed into the web shape by the second web forming unit, and a control unit that controls at least any of a pressing state and a transport state in the sheet forming unit. The control unit causes the second web to pass through a nip unit by controlling at least any of a transport speed of the sheet forming unit, a nip pressure of the sheet forming unit, and a nip width of the sheet forming unit depending on a position of a leading edge of the second web with respect to the nip unit in which the sheet forming unit pinches the second web.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: May 11, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Yuki Oguchi, Masahide Nakamura
  • Patent number: 11001949
    Abstract: A composite integrally includes a resin and a coagulation inhibitor, and is used to be mixed with fibers. The composite is a powder whose volume average particle diameter is 1 ?m or more to 100 ?m or less, and at least a portion of the coagulation inhibitor is arranged in a surface of the composite.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 11, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Yoshihiro Ueno, Shunichi Seki
  • Patent number: 10961657
    Abstract: A defibrating device and sheet manufacturing apparatus attract and remove metal fragments when metal fragments are mixed with fibrous material. A defibrating device has a main unit with a defibration section configured to defibrate fibrous material, and a swirl section configured to produce a rotational current, and by the rotational current cause the fibrous material to rotate and flow into the defibration section. The main unit has a magnet unit that is disposed to the swirl section, and has a magnet that attracts by magnetic force metal fragments conveyed with the fibrous material to the swirl section.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 30, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Nobumasa Abe
  • Patent number: 10919179
    Abstract: A web forming device and sheet manufacturing apparatus can manufacture sheets of desired dimensions regardless of the location. The web forming device includes: a disperser configured to disperse in air defibrated material containing a defibrated material of defibrated fiber; an accumulator configured to accumulate the defibrated material dispersed by the disperser; a housing enclosing a space between the disperser and the accumulator; a suction device disposed on the opposite side of the accumulator as the disperser; and a fastening assembly that can be disassembled into a first fixing assembly and a second fixing assembly. The disperser is affixed to the first fixing assembly, and the accumulator, housing, and suction device are affixed to the second fixing assembly.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: February 16, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Manabu Watabe
  • Patent number: 10767309
    Abstract: A refiner segment (4) for a refiner (1) intended for refining fibrous material (7) has a refining surface and is arrangeable to form a part of a refining surface of a refiner element (2; 3) in the refiner (1). The refiner segment (4) is provided with a pattern of bars (10) and intermediate grooves (11) extending along the refiner segment (4) in a substantially radial direction, and dams (12) extending between the bars (10) and protruding above the surface of the grooves (11).
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 8, 2020
    Assignee: VALMET AB
    Inventor: Thommy Lindblom
  • Patent number: 10494763
    Abstract: An apparatus and a method for processing recycled material, comprising a first pulper (3) having an inlet (2) for receiving recycled material (1), a water inlet (26) for producing a mixture of water and particles of recycled material, a first rotor unit (R1) configured to slush recycled material and a first screen plate (18) connected to a first outlet (20) configured to extract a first portion of recycled material from the first pulper (3); a last pulper (8) having a reject washer configured to remove coarse rejected recycled material from the last pulper (8); and an upper channel (4) from the first pulper (3) to the last pulper (8), wherein the mixture of water and particles of recycled material is configured to flow over from the first pulper (3) to the last pulper (8).
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: December 3, 2019
    Assignee: RED WIRE OY
    Inventor: Jouko Hautala
  • Patent number: 10449545
    Abstract: A center plate for a rotor in a pulp refiner has a surface provided with at least one feeding wing for directing lignocellulose-containing material towards a periphery of the center plate. The at least one feeding wing is an elongated protrusion arranged such that its second end is arranged further away from a center of the center plate than a first end and is also displaced relative to the first end in a direction opposite to a direction of rotation of the rotor. The at least one feeding wing includes at least one opening allowing steam to flow through the opening in a direction having a component directed opposite to the direction of rotation.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 22, 2019
    Assignee: Valmet AB
    Inventor: Thommy Lindblom
  • Patent number: 9890499
    Abstract: A paper recycling method includes defibrating first paper by dry type crushing into defibrated material, transporting the defibrated material using a first transport unit, deinking by an air flow classification of the defibrated material after the transporting by the first transport unit, transporting using the second transport unit the defibrated material after the deinking by the classifying process, and forming second paper with the defibrated material after the transporting by the second transport unit.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: February 13, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Toshiaki Yamagami
  • Patent number: 9808807
    Abstract: A sheet shredding device includes a stacking unit configured to stack paper; a cutting unit configured to cut paper supplied from the stacking unit; a transferring unit configured to transfer paper from the stacking unit to the cutting unit; and removing units configured to remove a binder attached to the paper. The removing units are provided so as to overlap in a transfer direction of the paper along a transfer path of the paper from the stacking unit to the cutting unit.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: November 7, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiaki Murayama, Seiichi Taniguchi
  • Patent number: 9662658
    Abstract: A sheet shredding device includes a stacking unit configured to stack paper; a cutting unit configured to cut paper supplied from the stacking unit; a transferring unit configured to transfer paper from the stacking unit to the cutting unit; and removing units configured to remove a binder attached to the paper. The removing units are provided so as to overlap in a transfer direction of the paper along a transfer path of the paper from the stacking unit to the cutting unit.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 30, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Yoshiaki Murayama, Seiichi Taniguchi
  • Patent number: 9644316
    Abstract: A sheet manufacturing apparatus includes a defibrating unit and a sheet forming unit. The defibrating unit includes a rotating unit and a housing, and is configured to carry out a dry-type defibrating process by rotating the rotating unit. The housing includes a cover portion and a fixing unit attached to the cover portion and spaced apart from the rotating unit in a direction perpendicular to an axial direction of the rotating unit so as to form a gap between the rotating unit and the fixing unit. The sheet forming unit is configured to form a sheet by accumulating defibrated material. The rotating unit includes a rotor having protruding sections on an outer circumference of the rotor, and a feeding blade arranged on a side section of the rotor on a side of an input section for the defibration object and configured to generate a flow of air.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 9, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Naotaka Higuchi, Toshiaki Yamagami, Nobumasa Abe
  • Patent number: 9643339
    Abstract: A sheet manufacturing apparatus includes a defibration unit and a sheet forming unit. The defibration unit includes a rotating unit and a housing including a cover portion and a fixing unit attached to the cover portion and spaced apart from the rotating unit in a direction perpendicular to an axial direction of the rotating unit so as to form a gap between the rotating unit and the fixing unit. The defibrating unit is configured to cause the rotating unit to rotate and dry-defibrate a defibration object. The sheet forming unit is configured to form a sheet by depositing defibrated material. The rotating unit includes rotating plates base sections located on a side of a central rotation axis and protruding sections protruding out in a direction drawing away from the central rotation axis, and the rotating plates is stacked such that the protruding sections are in contact in the axial direction.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 9, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Naotaka Higuchi, Toshiaki Yamagami, Nobumasa Abe
  • Patent number: 9636847
    Abstract: A paper recycling device includes a dry type defibrator, a first transport unit, a classifier unit, a second transport unit a paper forming unit and a control unit. The dry type defibrator unit is configured to defibrate first paper into defibrated material. The first transport unit is configured to transport the defibrated material after being defibrated by the dry type defibrator unit. The classifier unit is configured to classify by an air flow classification the defibrated material after being transported by the first transport unit. The second transport unit is configured to transport the defibrated material after being classified by the classifier unit. The paper forming unit is configured to for second paper with the defibrated material after being transported by the second transport unit. The control unit is configured to control volume of the first paper supplied to the dry type defibrator unit.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 2, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Toshiaki Yamagami, Ken Ikuma
  • Patent number: 9637863
    Abstract: A sheet manufacturing apparatus includes: a defibrating unit which defibrates a raw material including at least fibers; an addition unit which adds an additive agent to a defibrated material which is defibrated in the defibrating unit; and a sheet forming unit which forms a sheet by bonding the plurality of fibers to each other via the additive agent. According to a history of the raw material, an amount of the additive agent which is fed by the addition unit varies. In addition, there is provided a sheet manufacturing method, including: defibrating the raw material which includes at least fibers; adding the additive agent to the defibrated material; and bonding the plurality of fibers to each other via the additive agent. According to the history of the raw material, a feed amount of the additive agent with respect to the raw material varies.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: May 2, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Shunichi Seki, Yoshiaki Murayama, Katsuhito Gomi, Toshiaki Yamagami
  • Patent number: 9574304
    Abstract: A sheet-manufacturing device that manufactures a sheet of which the quality is stable, by controlling airflow to be constant and causing a defibrated state to be constant. A sheet-manufacturing device including a defibrating unit configured to generate a defibrated material by defibrating a defibration object; a temperature acquiring unit configured to acquire a temperature of the defibrating unit; and a control unit configured to change a mass flow rate of the air including the defibrated material transported from the defibrating unit.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: February 21, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Yuki Oguchi, Shunichi Seki
  • Patent number: 9435078
    Abstract: A paper recycling device includes a dry type defibrator, a first transport unit, a classifier unit, a second transport unit a paper forming unit and a control unit. The dry type defibrator unit is configured to defibrate first paper into defibrated material. The first transport unit is configured to transport the defibrated material after being defibrated by the dry type defibrator unit. The classifier unit is configured to deink by an air flow classification the defibrated material after being transported by the first transport unit. The second transport unit is configured to transport the defibrated material after being deinked by the classifier unit. The paper forming unit is configured to for second paper with the defibrated material after being transported by the second transport unit. The control unit is configured to control volume of the first paper supplied to the dry type defibrator unit.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: September 6, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Toshiaki Yamagami, Ken Ikuma
  • Patent number: 9309622
    Abstract: The sheet manufacturing apparatus includes a defibrating unit configured to defibrate a defibration object in the air, and a sheet forming unit configured to form a sheet by using at least a part of defibrated material that has been defibrated by the defibrating unit. The flow path configured to transfer the defibration object to the defibrating unit has a pipeline unit through which the defibration object passes, an opening having a size through which the defibration object does not pass on a surface of the pipeline unit, and an enclosure unit enclosing the pipeline unit such that the opening is positioned inside.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: April 12, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Naotaka Higuchi
  • Patent number: 9255360
    Abstract: A sheet manufacturing apparatus includes a screening unit configured to allow a material having fibers to pass through from openings and screen the material, and a forming unit configured to form a sheet by using a passed material that has been screened. The screening unit has a cylindrical unit with openings on a curved surface which is configured to rotate, two side units that are located at two end parts of the cylindrical unit which are spaced apart in a direction of extension of a rotation center axis thereof and that is configured not to rotate, an introduction unit provided to one of the side units and configured to introduce the material to the cylindrical unit, and a discharge unit provided to the other of the side units, located downward from the introduction unit, and configured to discharge a residual material that does not pass through the openings.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 9, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Masahide Nakamura
  • Patent number: 9194081
    Abstract: A paper recycling device includes a dry type defibrator unit, a first transport unit, a classifier unit, and a paper forming unit. The first transport unit is configured to transport using air flow the defibrated material after being defibrated by the dry type defibrator unit. The classifier unit is configured classify by an air flow the defibrated material after being transported by the first transport unit. The paper forming unit is configured to form second paper with the defibrated material after being classified by the classifier unit. The first transport unit includes a transport pipe configured to move the defibrated material, with a cross section surface area of a portion of the transport pipe on a side closer to the classifier unit being smaller than a cross section surface area of a portion of the transport pipe on a side closer to the dry type defibrator.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: November 24, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Toshiaki Yamagami
  • Publication number: 20150096701
    Abstract: The sheet manufacturing apparatus includes the defibrating unit configured to carry out a dry-type defibrating process on defibration object by rotating a rotating unit, and manufactures sheets by accumulating and heating at least a portion of defibrated material on which the dry-type defibrating process is carried out. The rotating unit includes a rotor that has a plurality of protruding sections on an outer circumference of the rotor, and a feeding blade configured to generate a flow of air and arranged on a side section of the rotor on a side of the input section for the defibration object.
    Type: Application
    Filed: September 15, 2014
    Publication date: April 9, 2015
    Inventors: Naotaka HIGUCHI, Toshiaki YAMAGAMI, Nobumasa ABE
  • Publication number: 20150096702
    Abstract: The sheet manufacturing apparatus in the present invention includes a defibration unit configured to cause a rotating unit to rotate and dry-defibrating a defibration object, and at least a part of defibrated material that has been dry-defibrated is deposited and heated to manufacture a sheet. A plurality of rotating plates provided with a base section located on a central rotation axis side and a plurality of protruding sections that protrude out in a direction drawing away from the central rotation axis are stacked in the rotating unit such that the protruding sections are in contact in a direction in which the central rotation axis extends.
    Type: Application
    Filed: September 17, 2014
    Publication date: April 9, 2015
    Inventors: Naotaka HIGUCHI, Toshiaki YAMAGAMI, Nobumasa ABE
  • Patent number: 8945346
    Abstract: Described herein is nanocellulose produced by introducing a mixture of cellulose based fiber raw material and water through a refining gap, having a width smaller than 0.1 mm. In the refining gap, the fiber raw material is subjected to processing forces varying in the direction of introducing said mixture, by means of refining zones provided in the gap one after each other in the feeding direction, whereby the refining surfaces differ in surface patterning and/or surface roughness. The mixture of fiber raw material and water is guided past the refining surfaces in the feeding direction to different locations in the refining zone by by-pass channels provided in the stator. The width of the refining gap is maintained by the combined effect of the feeding pressure of the mixture of fiber raw material and water fed into the refining gap and the axial force of the rotor.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: February 3, 2015
    Assignee: Upm-Kymmene Corporation
    Inventors: Tomas Bjoerkqvist, Timo Koskinen, Markus Nuopponen, Annikki Vehniaeinen, Sirkka Gustafsson
  • Publication number: 20150024932
    Abstract: A process for producing absorbent materials includes reducing a banana tree stalk into separated fibers, pressing the separated fibers to generate pressed fibers having less than 50% moisture content by weight, reducing moisture content of the pressed fibers by applying infrared heating to produce pre-dried fibers, and applying a non-thermal drying process to generate dried fibers having less than 10% moisture content by weight for employment in an absorbent material that absorbs hydrocarbons.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 22, 2015
    Applicant: GEOPHIA LLC
    Inventors: Dimitrios Hondroulis, Jean-Claude Vacher, JR.
  • Publication number: 20140374047
    Abstract: A paper recycling device includes a dry type defibrator unit, a first transport unit, a classifier unit, and a paper forming unit. The first transport unit is configured to transport using air flow the defibrated material after being defibrated by the dry type defibrator unit. The classifier unit is configured classify by an air flow the defibrated material after being transported by the first transport unit. The paper forming unit is configured to form second paper with the defibrated material after being classified by the classifier unit. The first transport unit includes a transport pipe configured to move the defibrated material, with a cross section surface area of a portion of the transport pipe on a side closer to the classifier unit being smaller than a cross section surface area of a portion of the transport pipe on a side closer to the dry type defibrator.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventor: Toshiaki YAMAGAMI
  • Publication number: 20140338849
    Abstract: The invention relates to a method for manufacturing furnish for a paper product, wherein the manufactured furnish contains fibril cellulose material. The method includes introducing first raw material to a system, which first raw material includes cellulose pulp, introducing second raw material to the system, which second raw material includes cellulose fibers that are oxidized by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose, conveying the first raw material and the second raw material to a refiner, and refining and mixing the first raw material and the second raw material in the refiner in order to produce furnish including fibril cellulose material. In addition, this invention relates to a system for manufacturing furnish and to a paper product.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 20, 2014
    Inventors: Mika V. Kosonen, Isko Kajanto
  • Patent number: 8882965
    Abstract: To provide a paper recycling device capable of recycling paper of increased whiteness level that can be widely used for applications other than paper for newspapers, the paper recycling device of the present invention has a dry type defibrator for crushing and defibrating paper, a first transport pipe for transporting defibrated material that was defibrated by the dry type defibrator, a cyclone for air classifying and deinking the defibrated material transported by the first transport pipe, a second transport pipe for transporting the defibrated material that was deinked by the cyclone, and a paper forming machine for forming paper with the defibrated material transported by the second transport pipe.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 11, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Toshiaki Yamagami, Ken Ikuma
  • Publication number: 20140323714
    Abstract: The invention relates to a method for manufacturing cellulose material, the method comprising introducing cellulose fibers as raw material pulp (1) to a system, adding an alkalizing agent into the system in order to absorb the alkalizing agent into the cellulose fibers (1), adding an anionic agent into the system in order to absorb said agent into the cellulose 2, 2a, 2b fibers (1), feeding the cellulose fibers (1) to a sieve plate press (6), performing a reaction between the cellulose fibers and the anionic agent at least partly in the sieve plate press (6) in order to produce anionized cellulose fibers having a degree of substitution between 0.05 and 0.35, wherein the reaction is performed at least partly at a consistency of at least 50%. In addition, the invention relates to a system for manufacturing cellulose material and to fibril cellulose produced from anionized cellulose fibers.
    Type: Application
    Filed: November 23, 2012
    Publication date: October 30, 2014
    Applicant: UPM-KYMMENE Corporation
    Inventors: Eino Sivonen, Kyösti Valta, Markus Nuopponen
  • Publication number: 20140290890
    Abstract: A sheet manufacturing apparatus includes a defibrating unit configured to defibrate stock material in a dry process, a transferring tube configured to transfer the stock material to the defibrating unit, and a magnet unit arranged such that a magnetic surface is exposed an inside of the transferring tube without being protruded inner than an inner surface of the transferring tube.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Shunichi SEKI, Toshiaki YAMAGAMI
  • Publication number: 20140290888
    Abstract: A sheet manufacturing apparatus includes a measuring unit configured to measure thickness and air permeability of a defibration object containing fibers, a defibrating unit configured to dry-defibrate the defibration object, and a classifying unit configured to separate and remove, by airflow classification, foreign substances other than the fibers from the defibrated material defibrated at the defibrating unit.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Katsuhito GOMI, Shunichi SEKI
  • Publication number: 20140196858
    Abstract: An assembly of opposing discs or cones for a disperser where each disc or cone has mounted to it a plate or an array of plate segments with a front surface on each plate or array of plate segments and each surface has a series of bars, grooves and dams. The bars are in rows, with the rows separated by annular dams at substantially fixed radial locations, and the grooves are adjacent the bars in the rows so that the grooves form a serpentine passage extending radially between the opposing plates or array of plate segments on the opposing discs or cones. The opposing plate or array of plate segments are arranged such that the annular dams on one plate or array of plate segments face roughly the middle of the row of bars on the opposing plate or array of plate segments.
    Type: Application
    Filed: November 18, 2013
    Publication date: July 17, 2014
    Applicant: Andritz Inc.
    Inventor: Luc Gingras
  • Publication number: 20140174687
    Abstract: [Technical Problem] In a body waste treating material, a method for manufacturing the body waste treating material, and an apparatus for manufacturing the same, a technical problem is in manufacturing the body waste treating material without a water absorbing agent as a material for complementing a water absorptive property and a water retention property and a wasting step in manufacturing easily at a low cost.
    Type: Application
    Filed: September 12, 2012
    Publication date: June 26, 2014
    Inventors: Susumu Okamoto, Takashi Takahashi, Yoshikazu Horihata, Koichi Narita, Akio Takase, Shinichi Matsuo, Toru Shimizu, Hiroaki Takayanagi, Hyunjin Seo, Akihiro Sugiyama, Takashi Murakami
  • Patent number: 8721841
    Abstract: Pulper used in the paper industry that processes pulp which pulper comprises a pulper container (19), a punched plate screen (15) installed to the mentioned container, a binnacle (8) out of the lower part (3) of the container for the mass that has penetrated the punched plate screen (15) and a rotating mixing rotor located in the container (19) and equipped with wings (1); (5) the purpose of which mixing rotor is to defibrate paper and mix the mass in the container (19) and that the mixing rotor further comprises a cylinder part (20) directed downwards towards the punched plate screen (15) and that rotates along the mentioned rotor to which cylinder part wings (2) that clean the punched plate screen (15) are attached and which cylinder part (20) is located between the mixing rotor and the punched plate screen (15).
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: May 13, 2014
    Assignee: Tampulping Oy
    Inventor: Jouko Hautala
  • Publication number: 20140083634
    Abstract: Described herein is nanocellulose produced by introducing a mixture of cellulose based fiber raw material and water through a refining gap, having a width smaller than 0.1 mm. In the refining gap, the fiber raw material is subjected to processing forces varying in the direction of introducing said mixture, by means of refining zones provided in the gap one after each other in the feeding direction, whereby the refining surfaces differ in surface patterning and/or surface roughness. The mixture of fiber raw material and water is guided past the refining surfaces in the feeding direction to different locations in the refining zone by by-pass channels provided in the stator. The width of the refining gap is maintained by the combined effect of the feeding pressure of the mixture of fiber raw material and water fed into the refining gap and the axial force of the rotor.
    Type: Application
    Filed: December 30, 2011
    Publication date: March 27, 2014
    Applicant: UPM-KYMMENE CORPORATION
    Inventors: Markus Nuopponen, Annikki Vehniaeinen, Tomas Bjoerkqvist, Sirkka Gustafsson, Timo Koskinen
  • Publication number: 20140027075
    Abstract: To provide a paper recycling device capable of recycling paper of increased whiteness level that can be widely used for applications other than paper for newspapers, the paper recycling device of the present invention has a dry type defibrator for crushing and defibrating paper, a first transport pipe for transporting defibrated material that was defibrated by the dry type defibrator, a cyclone for air classifying and deinking the defibrated material transported by the first transport pipe, a second transport pipe for transporting the defibrated material that was deinked by the cyclone, and a paper forming machine for forming paper with the defibrated material transported by the second transport pipe.
    Type: Application
    Filed: December 20, 2011
    Publication date: January 30, 2014
    Applicant: Seiki Epson Corporation
    Inventors: Toshiaki Yamagami, Ken Ikuma
  • Patent number: 8617355
    Abstract: A method to treat a lignocellulosic material including: performing a steam explosion reaction on the lignocellulosic material and discharging a slurry from the; adding an alkali material to the slurry in a first conveyor; transferring the slurry with the alkali material from the first conveyor to a second conveyor; adding an enzyme solution to the slurry while in, entering or at the discharge of the second conveyor; transferring the slurry with the enzyme solution from the second conveyor slurry to a mixer; mixing the slurry in the mixer, wherein a second portion of the enzyme solution is added to the slurry during the mixing, and transferring the slurry with the enzyme solution from the mixer to a first reactor vessel wherein the slurry in the first reactor vessel undergoing enzymatic hydrolysis such that the viscosity of the slurry is reduced in the first reactor vessel.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: December 31, 2013
    Assignee: Andritz Inc.
    Inventors: Rodolfo Romero, Bertil Stromberg
  • Publication number: 20130206345
    Abstract: The invention relates to a device for the hydrolysis of preferably solid organic substrates, in particular of energy crops and plant residues, with a collection vessel (1) for receiving the organic substrates, with a conveying means (4) for transporting the organic substrates into a charging device (7) for the batch-wise charging of a hydrolyzer (10) with the organic substrates, the hydrolyzer (10) being provided on the output with a pressure-release device (12) having a valve-controlled pressure diaphragm (13) and a steam trap (14) arranged upstream of an expander tank (15). According to the invention, the conveying means (4) includes a conveyor worm (4?) with a sleeve shaft (25), which is charged with hot steam from the steam trap (14), which is preferably designed as a cyclone, the sleeve shaft (25), in the conveying zone for the organic substrate, having, in a heating zone (18), steam-outlet openings (26) for directly charging the organic substrate with hot steam.
    Type: Application
    Filed: March 15, 2011
    Publication date: August 15, 2013
    Applicant: BIOGAS SYSTEMS GMBH
    Inventor: Hermann Dauser
  • Patent number: 8449722
    Abstract: A used paper recycling apparatus being installed in a room of a small shop or the like, friendly to the environment, low in running cost, and capable of maintaining a high confidentiality.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: May 28, 2013
    Assignee: Seed Company Limited
    Inventors: Shigeru Tamai, Yuji Koyama
  • Patent number: 8444807
    Abstract: The invention relates to a method for preparing paper pulp from recycled paper containing contaminants characterized in that it comprises a first step of agitating the paper in the presence of water in order to obtain a mixture of fibers and contaminants in suspension, a second step of coarsely screening said mixture in order to separate the coarse contaminants from the rest of the suspension, a third step of fine screening in order to separate the fine contaminants from the coarsely-screened suspension and a fourth step of washing said coarse and fine contaminants in order to separate the reusable fibrous materials from the rest of the non-reusable contaminants. In particular, the invention aims to provide a method for preparing paper pulp that is capable of producing a good quality paper pulp from highly-contaminated recycled paper, especially having a contaminant level in the dry state that is greater than or equal to 15% by weight.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: May 21, 2013
    Assignee: SCA Tissue France
    Inventors: Philippe Colin, Philippe Beringuet, Xavier Gillot, Jean-Yves Tinel
  • Patent number: 8444810
    Abstract: A process for treatment of fibers is disclosed. The treatment comprises simultaneously and continuously macerating the fibers and exposing the fibers to superheated steam, ammonia gas and ethylenediamine gas. The treatment is carried out in a chamber where the fibers are subjected to the mechanical rubbing and crushing action of a plurality of rotating pins against channels disposed on the chamber interior wall. The treatment results in improved fiber water holding capacity and improved conversion efficiency in the production of ethanol from the treated fibers.
    Type: Grant
    Filed: November 21, 2010
    Date of Patent: May 21, 2013
    Inventor: Aicardo Roa-Espinosa
  • Patent number: 8444808
    Abstract: A process for making nanofibers includes preparing a fluid suspension of fibers, shear refining the fibers to create fibrillated fibers, and subsequently closed channel refining or homogenizing the fibrillated fibers to detach nanofibers from the fibrillated fibers. The shear refining of the fibers in the fluid suspension generates fiber cores having attached nanofibers. The closed channel refining or homogenizing of the fibrillated fibers is initially at a first shear rate and, subsequently, at a second, higher shear rate, to detach nanofibers from fiber cores and to create additional nanofibers from the fiber cores. The fiber suspension may flow continuously from the shear refining to the closed channel refining or homogenizing, and include controlling the rate of flow of the fiber suspension from the shear refining to the closed channel refining or homogenizing.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 21, 2013
    Assignee: KX Industries, LP
    Inventors: Evan E Koslow, Anil C Suthar
  • Patent number: 8388810
    Abstract: A method of production of a product from a stock pulp sheet uses conveyor rolls to convey a stock pulp sheet to a crusher. During conveyance to the crusher, a defective part in the stock pulp sheet is detected by a detector. The detected defective part is removed from the stock pulp sheet by a remover. The stock pulp sheet from which the defective part is removed is supplied to the crusher to produce crushed pulp. The produced crushed pulp is used to produce a product in a product producer.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: March 5, 2013
    Assignee: Uni-Charm Corporation
    Inventor: Hitoshi Hadejiri
  • Publication number: 20130000859
    Abstract: A mechanical pulping apparatus including: a pre-treatment defibration device receiving comminuted cellulosic material; a primary refiner receiving the comminuted cellulosic material discharged from the pre-treatment defibration device; a source of a biological agent; a first conduit from the source of the biological agent coupled to pre-treatment defibration device, wherein the first conduit delivers the biological agent to or immediately upstream of an inlet to the defibration device; a source of a chemical agent, and a second conduit from the source of the chemical agent coupled to primary refiner, wherein the second conduit delivers the chemical agent to the primary refiner.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 3, 2013
    Applicant: ANDRITZ INC.
    Inventors: Johann Aichinger, Marc Sabourin, Jan Hill, Johann Grossalber
  • Patent number: 8343313
    Abstract: The production equipment of paper-made components for loudspeakers includes a mixing device, a fining device, a paper-making device, and a shape processing device. The mixing device mixes material of a paper-made component for a loudspeaker into liquid to generate mixed liquid. The fining device includes a pressure unit, an orifice, and an inner wall. The pressure unit applies pressure on the mixed liquid to cause the mixed liquid to pass through the orifice, and the mixed liquid collides against the inner wall to cause the fining device to generate fined material. The paper-making device paper-makes the fined material to generate a paper-made component. The shape processing device processes the shape of the paper-made component. This structure provides production equipment of the paper-made components for loudspeakers, which prepares material for paper-making in a short time and reduces producing time.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: January 1, 2013
    Assignee: Panasonic Corporation
    Inventors: Kazuyoshi Mimura, Kenichi Ajiki, Shinya Mizone, Masahide Sumiyama, Toru Fujii
  • Patent number: 8313616
    Abstract: A used paper recycling apparatus capable to be installed in small office or general household, friendly to environment and low in running cost, and assuring high confidentiality. A used paper recycling apparatus comprising a pulp making section for crushing and beating used paper and making into pulp, a paper making section for recycling paper by making used paper pulp from the pulp making section, and a control section for driving and controlling by interlocking the pulp making section and paper making section, which are incorporated in a furniture size apparatus case, in which the pulp making section includes a crushing unit for stirring and grinding the used paper, and a beating unit for beating the crushed used paper from the crushing unit, and the crushing unit and beating unit are circulating the used paper pulp.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: November 20, 2012
    Assignee: Seed Company Limited
    Inventors: Shigeru Tamai, Yuji Koyama
  • Publication number: 20120273149
    Abstract: A method and apparatus for pretreating fibre material to be used in manufacturing paper or the like, for example, by precipitating mineral substances to the fibres. During precipitation, fibre material, which is advantageously pretreated in a through-flow mixer operating on the principle of an impact mill, is fed to the precipitation reactor. Gas is led to the precipitation reactor in order to generate a gas space in the reactor. The gas contains a substance, which precipitates the mineral substance such as carbon dioxide (CO2). The fibre material is fed to the gas space of to the precipitation reactor as small liquid and solid substance fractions such as drops and/or particles.
    Type: Application
    Filed: June 29, 2012
    Publication date: November 1, 2012
    Inventors: Mikko MAIJALA, Bjôrn Lax, Roope Maijala, Matti Sipilä, Päjyi Solismaa
  • Patent number: 8262861
    Abstract: A refiner plate for forming accepts and exhaust from a pulp material includes a first side and a second side and defines a channel extending between the first side and the second side. The channel is operable to direct at least some of the exhaust and at least some of the accepts away from the first side.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: September 11, 2012
    Assignee: J & L Fiber Services, Inc.
    Inventor: Ola M. Johansson
  • Patent number: 8262849
    Abstract: A fiber mass suspension is produced by mixing together a fiber material (FM) and water (W) in a pulper (1). The formed fiber mass suspension is divided into an accept fraction and a reject fraction. The reject fraction is supplied continuously to a first secondary pulper (2) for further screening and defibring. The accept fraction formed in the first secondary pulper (2) is supplied continuously for further processing and the reject fraction formed in the first secondary pulper (2) is supplied continuously to a second secondary pulper (3) for further processing. The accept fraction formed in the second secondary pulper (3) is supplied continuously for further processing.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: September 11, 2012
    Assignee: Metso Paper, Inc.
    Inventor: Timo Vuorinen
  • Patent number: 8216423
    Abstract: The invention combines the step of adding chemicals such as alkaline peroxide to an intermediate line after refining, with the step of applying chemicals such as alkaline peroxide as a pre-treatment before primary refining and/or applying chemicals such as alkaline peroxide at the primary refiner. This is implemented in the preferred embodiment, by pre-treating feed material, refining the materials into a pulp in a superatmospheric refiner, and adding chemicals in the post refining blowline.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: July 10, 2012
    Assignee: Andritz Inc.
    Inventor: Eric Chao Xu
  • Patent number: 8197643
    Abstract: A refining segment intended for refiners of disc-type for working fibrous material. A first portion has a first pattern of coarse bars and a second portion has a second pattern of fine bars. The second portion is positioned outside the first portion. The second pattern has a higher density of bars than the first pattern. The refining segment has a deflector arrangement protruding from a bar surface of the coarse bar. The bar surface faces the rotational direction. The deflector arrangement has a deflector surface directing a flow of fibrous material away from the bar surface. A refining apparatus has two opposing rotatable refining discs, separated by a refiner gap. At least one of the two refining discs has the above described patterns and deflector arrangements.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: June 12, 2012
    Assignee: Metso Paper Inc
    Inventor: Christer Hedlund