EP1116818B1 - Dispositif pour mélanger d'une suspension fibreuse - Google Patents

Dispositif pour mélanger d'une suspension fibreuse Download PDF

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Publication number
EP1116818B1
EP1116818B1 EP00126764A EP00126764A EP1116818B1 EP 1116818 B1 EP1116818 B1 EP 1116818B1 EP 00126764 A EP00126764 A EP 00126764A EP 00126764 A EP00126764 A EP 00126764A EP 1116818 B1 EP1116818 B1 EP 1116818B1
Authority
EP
European Patent Office
Prior art keywords
mixing
vessel
pump
mixing vessel
pipe
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 - Lifetime
Application number
EP00126764A
Other languages
German (de)
English (en)
Other versions
EP1116818A2 (fr
EP1116818A3 (fr
Inventor
Anton Gmeiner
Michael Dr. Schwarz
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
Publication of EP1116818A2 publication Critical patent/EP1116818A2/fr
Publication of EP1116818A3 publication Critical patent/EP1116818A3/fr
Application granted granted Critical
Publication of EP1116818B1 publication Critical patent/EP1116818B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21B1/342—Mixing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
    • 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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0018—Devices for dispensing fibres in a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/47—Mixing of ingredients for making paper pulp, e.g. wood fibres or wood pulp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders

Definitions

  • the invention relates to a device for mixing suspended pulp according to the preamble of claim 1.
  • the pulp suspension processed on a paper machine is often made by blending different pulps with each other and by diluting with thin pulp, e.g. White water, formed.
  • the part of the papermaking plant, which u.a. This task is commonly referred to as the Constant part.
  • a highly diluted pulp suspension of about 1 to 2% consistency is fed via the so-called mixing pump of the paper machine, wherein further processing units for the suspension may be present.
  • a method can be removed by means of which several pulp qualities can be mixed with each other or pulp with white water.
  • the thick material is directly and essentially centrally in the flow of material of the thin material, wherein a relatively high speed of the thick material is required. This admixture takes place immediately before the mixing pump. Even if the mixing effect of such a mixing pump is relatively good, temporal fluctuations in pulp quality can occur when using the known method.
  • the device according to the invention consists of a mixing vessel 5, which is designed here as an open vessel. Upstream of this mixing vessel, a mixing tube 6 is connected, which has two supply lines 8 and 9, can be added by the two different pulp suspensions 1 and 2.
  • the supply lines 8 and 9 are arranged here in the flow direction one behind the other perpendicular to the course of the mixing tube 6.
  • the so-merged material flows then pass downstream into a part of the mixing tube 6, which is provided with a static mixer 7. This is only hinted at here; static mixers are known.
  • a drivable stirrer 12 which another Liquid causes or at least prevents segregation in the mixing vessel 5.
  • the mixing vessel 5 can be kept relatively small, with particular advantage, i. its volume is much lower than that normally chosen for mixed beets.
  • the drain line 10 which opens downstream in the supply line 11 of the thin material 3 in the mixing pump 4.
  • a pump 15 may be present.
  • the thinness 3 e.g. was removed as white water from the paper machine, such a consistency is set as needed to produce the paper in the paper machine headbox.
  • the mixing pump 4 is designed. In addition to the form of input shown here, other possibilities are known.
  • FIG. 2 shows a further form of the device according to the invention, in which the mixing vessel 5 ', unlike that shown in FIG. 1, is a closed, pressurized tank. This allows the mixing system to be kept under pressure.
  • the mixing vessel 5 ' contains an overflow 15, with which the level is kept at a set value. It can also be provided with a diaphragm 16.
  • a connecting piece 13 is optionally indicated.
  • the mixed pulp suspension is added here in a curved suction line for the thin material 3 with a central nozzle tube 14 for the pulp suspensions.
  • FIG. 3 shows an example of a possible control concept for the device shown in FIG. 2.
  • the designations customary in the control technology are chosen, so that an explanation of the concept is unnecessary.
  • a total of four pulp components are combined. Their volume control is shown explicitly only for the inflow of the pulp suspension 1.
  • the inflow control of the other components can be similar, with their proportions among themselves are predetermined.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)

Claims (8)

  1. Dispositif de mélange d'au moins deux suspensions fibreuses (1, 2) différentes définies pour la fabrication du papier et comprenant un diluant (3) présentant une teneur en fibres moins élevée que celle des suspensions fibreuses (1, 2),
    une suspension mélangée étant générée, laquelle doit être amenée par une pompe de mélange (4) à une machine à papier,
    caractérisé en ce que
    le dispositif contient un récipient de mélange (5, 5') comprenant au moins un tube de mélange (6) disposé en amont, doté de conduites d'alimentation (8, 9) pour les suspensions fibreuses (1, 2) ainsi qu'une conduite d'écoulement (10) disposée en aval, menant à la pompe de mélange (4) et
    en ce que la conduite d'écoulement (10) débouche dans la conduite d'alimentation (11) du diluant (3) en direction de la pompe de mélange (4).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le tube de mélange (6) contient au moins un mélangeur statique (7).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    le récipient de mélange (5, 5') contient un agitateur entraîné mécaniquement (12).
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le récipient de mélange (5') est fermé et dimensionné pour la surpression.
  5. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    le récipient de mélange (5) est ouvert.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    la conduite d'écoulement (10) contient une pompe (15).
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le volume du récipient de mélange (5, 5') est mesuré de sorte que lorsqu'il fonctionne de manière conventionnelle, le temps de séjour moyen de la suspension est compris entre 8 et 15 sec.
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le tube de mélange (6) est mesuré de sorte que lorsqu'il fonctionne de manière conventionnelle, une vitesse d'écoulement moyenne de 1 à 2 m/sec est établie.
EP00126764A 1999-12-13 2000-12-06 Dispositif pour mélanger d'une suspension fibreuse Expired - Lifetime EP1116818B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29921879U DE29921879U1 (de) 1999-12-13 1999-12-13 Vorrichtung zum Vermischen von suspendiertem Feuerstoff
DE29921879U 1999-12-13

Publications (3)

Publication Number Publication Date
EP1116818A2 EP1116818A2 (fr) 2001-07-18
EP1116818A3 EP1116818A3 (fr) 2001-10-31
EP1116818B1 true EP1116818B1 (fr) 2006-05-31

Family

ID=8082892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126764A Expired - Lifetime EP1116818B1 (fr) 1999-12-13 2000-12-06 Dispositif pour mélanger d'une suspension fibreuse

Country Status (3)

Country Link
EP (1) EP1116818B1 (fr)
AT (1) ATE328153T1 (fr)
DE (2) DE29921879U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538602B (zh) * 2019-07-18 2024-04-05 中山市马里奥机械科技有限公司 一种静态混合机的混料系统
CN111041877B (zh) * 2019-12-30 2020-10-02 江苏金莲纸业有限公司 造纸用制浆设备
CN116159521B (zh) * 2023-03-20 2023-09-01 菲立智能装备(浙江)有限公司 一种动态反应器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125513A1 (de) * 1991-08-01 1993-02-04 Escher Wyss Gmbh Verfahren zum vermischen von suspendiertem faserstoff sowie vorrichtungen zu dessen ausfuehrung
FI103676B (fi) * 1998-06-10 1999-08-13 Metso Paper Inc Paperi- tai kartonkikoneen lyhyen kierron prosessijärjestely

Also Published As

Publication number Publication date
EP1116818A2 (fr) 2001-07-18
ATE328153T1 (de) 2006-06-15
DE50012855D1 (de) 2006-07-06
EP1116818A3 (fr) 2001-10-31
DE29921879U1 (de) 2000-03-16

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