EP0126632A3 - Pulping apparatus and method - Google Patents

Pulping apparatus and method Download PDF

Info

Publication number
EP0126632A3
EP0126632A3 EP84303373A EP84303373A EP0126632A3 EP 0126632 A3 EP0126632 A3 EP 0126632A3 EP 84303373 A EP84303373 A EP 84303373A EP 84303373 A EP84303373 A EP 84303373A EP 0126632 A3 EP0126632 A3 EP 0126632A3
Authority
EP
European Patent Office
Prior art keywords
vanes
pulp
screw flights
undersurface
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84303373A
Other languages
German (de)
French (fr)
Other versions
EP0126632A2 (en
Inventor
Joseph Walter Couture
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black Clawson Co
Original Assignee
Black Clawson Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23970331&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0126632(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Black Clawson Co filed Critical Black Clawson Co
Publication of EP0126632A2 publication Critical patent/EP0126632A2/en
Publication of EP0126632A3 publication Critical patent/EP0126632A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers
    • D21B1/347—Rotor assemblies

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

Pulping apparatus for pulping high consistency paper pulp includes a tub 10 having a bottom wall 13 and a generally cylin­ drical side wall 14 extending upwardly therefrom, and a rotor 20 mounted centrally of the bottom wall for rotation about a vertical axis and having a hub portion 21, a plurality of vanes 22 extending generally radially outwardly from the hub and having pumping 27 and defibering faces 26 thereon, and a plu­ rality of helical screw flights 33 extending upwardly from the hub. Each flight 33 has a concave undersurface 44 such that rotation of the rotor in the presence of high consistency pulp causes the screw flights to draw pulp inwardly toward the axis of rotation and push it downwardly to the defibering faces 26 of the vanes 22, and the outer surface of each flight 45 being convexly curved and of substantially greater surface area than its undersurface to provide an air foil effect further tending to draw pulp into the path of the undersurface of the following flight. The screw flights 33 preferably include trailing portions 35 having raised peripheral ridges 40 extending upwardly therefrom to prevent stock from flowing outwardly from the rotor until it reaches the vicinity of the vanes. The trailing por­ tions 35 of the screw flights 33 preferably have a width, meas­ ured in a radial direction, which is substantially the same as the length of the vanes 22 such that pulp can be pushed down­ wardly and outwardly into the entire path of the working faces 26-27 of the vanes.
EP84303373A 1983-05-18 1984-05-17 Pulping apparatus and method Withdrawn EP0126632A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49587283A 1983-05-18 1983-05-18
US495872 1983-05-18

Publications (2)

Publication Number Publication Date
EP0126632A2 EP0126632A2 (en) 1984-11-28
EP0126632A3 true EP0126632A3 (en) 1985-06-19

Family

ID=23970331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84303373A Withdrawn EP0126632A3 (en) 1983-05-18 1984-05-17 Pulping apparatus and method

Country Status (5)

Country Link
EP (1) EP0126632A3 (en)
JP (1) JPS59216993A (en)
BR (1) BR8401911A (en)
CA (1) CA1228762A (en)
ES (1) ES532569A0 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743247A1 (en) * 1987-12-19 1989-06-29 Escher Wyss Gmbh PULPER WITH HIGH RESOLUTION EFFICIENCY
DK169728B1 (en) * 1993-02-02 1995-01-23 Stein Gaasland Process for releasing cellulose-based fibers from each other in water and molding for plastic molding of cellulosic fiber products
JPH08328318A (en) * 1995-05-30 1996-12-13 Ricoh Co Ltd Copying machine
IT1280070B1 (en) * 1995-06-05 1997-12-29 Comer Spa WRAPPER FOR PAPER PASTE
DE19622591A1 (en) * 1996-06-05 1997-12-11 Heidelberger Zement Ag Process for the material and thermal use of water, minerals and flammable residues for the production of Portland cement clinker
ITVI20020048A1 (en) * 2002-03-19 2003-09-19 Comer Spa PROPULSOR FOR THE STIRRING OF SUSPENSIONS OF SOLIDS INSIDE A TREATMENT TANK
JP2005290331A (en) 2004-04-06 2005-10-20 Shinto Fine Co Ltd Antiallergenic composition and method for deactivating allergen
FR2895423B1 (en) 2005-12-23 2009-04-24 Georgia Pacific France Soc En PROCESS FOR PREPARING PAPER PULP FROM RECYCLED PAPER CONTAINING CONTAMINANTS
FR2908058A1 (en) * 2006-11-02 2008-05-09 Kadant Lamort Soc Par Actions Agitator for pulper, has plates occupying, in projection along plane perpendicular to axis, surface with diameter greater than specific times of diameter of tank, where plates form blades each fixed along given blade angle around shaft
SE1150621A1 (en) * 2011-07-01 2012-12-18 Metso Paper Sweden Ab Feeder screw, feeder screw device and mill for lignocellulosic material
DE102012011776A1 (en) * 2011-07-26 2013-01-31 Hans-Joachim Boltersdorf Pulper with a shaft and method of treating composite materials
CN112624806B (en) * 2020-12-23 2022-10-21 嘉施利（宜城）化肥有限公司 Method for preparing trace elements in compound fertilizer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035781A (en) * 1958-11-28 1962-05-22 Grubbens & Co Aktiebolag Pulpers
US3889885A (en) * 1974-01-11 1975-06-17 Black Clawson Co Pulping apparatus
US4109872A (en) * 1977-07-29 1978-08-29 The Black Clawson Company Pulping apparatus for liquid slurry stock
DE3027044A1 (en) * 1980-07-17 1982-02-04 J.M. Voith Gmbh, 7920 Heidenheim ROTOR FOR A MATERIAL

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014802A (en) * 1973-06-18 1975-02-17
JPS5225104A (en) * 1975-08-14 1977-02-24 Bolton Emerson Pulp making method
DE2917814C2 (en) * 1979-05-03 1983-12-08 J.M. Voith Gmbh, 7920 Heidenheim Pulpers for the production of paper stock suspensions
BR8400776A (en) * 1983-02-28 1984-10-02 Black Clawson Co ROTOR PARTICULARLY ADAPTED FOR USE IN THE PAPER MANUFACTURE STOCK PULP AND APPARATUS FOR PAPER MANUFACTURE STOCK PULP

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035781A (en) * 1958-11-28 1962-05-22 Grubbens & Co Aktiebolag Pulpers
US3889885A (en) * 1974-01-11 1975-06-17 Black Clawson Co Pulping apparatus
US4109872A (en) * 1977-07-29 1978-08-29 The Black Clawson Company Pulping apparatus for liquid slurry stock
DE3027044A1 (en) * 1980-07-17 1982-02-04 J.M. Voith Gmbh, 7920 Heidenheim ROTOR FOR A MATERIAL

Also Published As

Publication number Publication date
EP0126632A2 (en) 1984-11-28
JPH055959B2 (en) 1993-01-25
BR8401911A (en) 1985-03-19
CA1228762A (en) 1987-11-03
JPS59216993A (en) 1984-12-07
ES8504294A1 (en) 1985-04-01
ES532569A0 (en) 1985-04-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB IT SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19860220

RIN1 Information on inventor provided before grant (corrected)

Inventor name: COUTURE, JOSEPH WALTER