DE59905408D1 - Process and container for stacking and diluting high consistency paper pulp - Google Patents

Process and container for stacking and diluting high consistency paper pulp

Info

Publication number
DE59905408D1
DE59905408D1 DE59905408T DE59905408T DE59905408D1 DE 59905408 D1 DE59905408 D1 DE 59905408D1 DE 59905408 T DE59905408 T DE 59905408T DE 59905408 T DE59905408 T DE 59905408T DE 59905408 D1 DE59905408 D1 DE 59905408D1
Authority
DE
Germany
Prior art keywords
sieve
zone
cleaner
propeller
pulp
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.)
Expired - Fee Related
Application number
DE59905408T
Other languages
German (de)
Inventor
Dr Gehr
Martin Nuber
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Application granted granted Critical
Publication of DE59905408D1 publication Critical patent/DE59905408D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/28—Tanks for storing or agitating pulp
    • 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
    • D21B1/342—Mixing apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Stackable Containers (AREA)

Abstract

To store and dilute paper fiber pulp with a high consistency, it is held in an initial storage zone (1) for the required dwell time. It is then passed into a second zone (2) for dilution into a pulp consistency which can be pumped. A circulation flow (3) is in the second zone (2), which takes off the high consistency pulp. It is then taken off as a suspension (S) through a sieve (5) held free by a cleaner (4). The high consistency paper fiber pulp has a crumble structure, formed of used paper for recycling which has been broken down, cleaned and then thickened. In the first zone (1), the pulp has a solid content of 20-40% to be bleached chemically. The pulp taken from the second zone (2) has a solid content of max. 8%. The cleaner (4) breaks down or grinds fiber clumps, and the cleaner (4) generates the circulation flow (3). The circulation flow (3) action is supported by a propeller (7), with its hydraulic propulsion on the same alignment as the sieve cleaner (4) so that the propeller (7) generates a pressure and the sieve cleaner (4) exerts a suction on the circulation flow (3). The propeller (7) and sieve cleaner (4) rotate in opposite directions, and face each other concentrically. The cleaner (4) develops a specific working level of 3-15 kWh/tonne. The paper fiber pulp is transferred from the first (1) to the second (2) zone through a steadily decreasing flow cross section surface, where the downstream flow cross section is max. 80% of the upstream flow cross section. The second zone (2) is placed under the first zone (1). An Independent claim is included for an assembly with a vessel to hold the paper fiber pulp. The second zone (2) has a stirring propeller (7) and a sieve assembly (8). The sieve unit (8) has at least one sieve (5) and a sieve cleaner (4), for the diluted paper fiber pulp to be taken through the sieve (5). Preferred Features: The propeller (7) and the sieve unit (8) are opposite each other, at the lower side walls of the vessel. The propeller (7) generates a horizontal propulsion flow, or the flow from the propeller (7) is at an angle of 0-30 degrees . The sieve (5) is a flat plate, with openings.
DE59905408T 1998-06-17 1999-06-16 Process and container for stacking and diluting high consistency paper pulp Expired - Fee Related DE59905408D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19826879A DE19826879B4 (en) 1998-06-17 1998-06-17 Method and container for stacking high consistency paper pulp

Publications (1)

Publication Number Publication Date
DE59905408D1 true DE59905408D1 (en) 2003-06-12

Family

ID=7871097

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19826879A Expired - Fee Related DE19826879B4 (en) 1998-06-17 1998-06-17 Method and container for stacking high consistency paper pulp
DE59905408T Expired - Fee Related DE59905408D1 (en) 1998-06-17 1999-06-16 Process and container for stacking and diluting high consistency paper pulp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19826879A Expired - Fee Related DE19826879B4 (en) 1998-06-17 1998-06-17 Method and container for stacking high consistency paper pulp

Country Status (3)

Country Link
EP (1) EP0965682B1 (en)
AT (1) ATE239822T1 (en)
DE (2) DE19826879B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10156201C1 (en) 2001-11-15 2002-10-17 Voith Paper Patent Gmbh To process high consistency paper fiber materials, an initial high consistency volume is held in a stack for a dwell time, to be taken off at the bottom by a circulation flow for dilution and delivery as a suspension
DE102006008763B3 (en) * 2006-02-24 2007-12-06 Voith Patent Gmbh Reaction tower for bleaching of fiber materials, comprises cylindrical reaction container, dilution container, and a cylindrical homogenizing container, which has an inlet and outlet for the product to be bleached
JP5911873B2 (en) * 2010-10-13 2016-04-27 アンドリツ オサケユキチュア Method and configuration for treating pulp
CN111576066B (en) * 2020-06-11 2022-03-25 郑州磊展科技造纸机械有限公司 A widen thick liquid pond structure for broke pulper

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543183B1 (en) * 1983-03-25 1985-07-26 Lamort E & M METHOD AND DEVICE FOR SORTING A MIXTURE OF PAPER PULP AND IMPURITIES
DE3522395C1 (en) * 1985-06-22 1986-11-20 J.M. Voith Gmbh, 7920 Heidenheim Process and arrangement for processing waste paper
FI79361B (en) * 1988-01-05 1989-08-31 Ahlstroem Oy FOERFARANDE OCH APPARATUR FOER UNDERLAETTANDE AV UTTOEMNING AV FALLROER ELLER LIKNANDE OCH BEHANDLING AV MASSA I SAGDA UTRYMME.
FI85392C (en) * 1990-09-05 1992-04-10 Ahlstroem Oy ANORDINATION FROM THE URL TO THE MASSAGE.
FI98836C (en) * 1994-06-09 1997-08-25 Ahlstroem Pumput Oy Consistency pulp tower

Also Published As

Publication number Publication date
DE19826879B4 (en) 2005-06-02
ATE239822T1 (en) 2003-05-15
DE19826879A1 (en) 1999-12-30
EP0965682B1 (en) 2003-05-07
EP0965682A1 (en) 1999-12-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VOITH PATENT GMBH, 89522 HEIDENHEIM, DE

8339 Ceased/non-payment of the annual fee