[go: up one dir, main page]

WO1996018769A1 - Dispositif de traitement d'une masse particulaire - Google Patents

Dispositif de traitement d'une masse particulaire Download PDF

Info

Publication number
WO1996018769A1
WO1996018769A1 PCT/NO1995/000226 NO9500226W WO9618769A1 WO 1996018769 A1 WO1996018769 A1 WO 1996018769A1 NO 9500226 W NO9500226 W NO 9500226W WO 9618769 A1 WO9618769 A1 WO 9618769A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
disperser
disc
particulate material
steam
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.)
Ceased
Application number
PCT/NO1995/000226
Other languages
English (en)
Inventor
Tom Egenes
Terje Fjellkleiv
Esten Nordal
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.)
Kvaerner Pulping AS
Original Assignee
Kvaerner Hymac AS
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 Kvaerner Hymac AS filed Critical Kvaerner Hymac AS
Priority to AU42729/96A priority Critical patent/AU4272996A/en
Publication of WO1996018769A1 publication Critical patent/WO1996018769A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/004—Methods of beating or refining including disperging or deflaking
    • D21D1/006—Disc mills
    • D21D1/008—Discs
    • 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
    • D21B1/14—Disintegrating in mills
    • 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
    • D21B1/32—Defibrating by other means of waste paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Definitions

  • the invention relates to a device for processing particulate material comprising a grinder, means for introducing a particulate material into the grinder; a disc disperser and means for transferring particulate material from the grinder to the disc disperser, means for removing particulate material from the disc disperser; and means for introducing steam into the device to heat the particulate material.
  • particulate material especially wood fibre pulp and more specifically pulp containing recycled paper
  • a plurality of process steps comprising dewatering in a dewatering zone with the aid of a screw press, thereby increasing the concentration of the pulp.
  • the pulp is then conducted to a heating zone, where the pulp is advanced whilst steam is added.
  • the heated pulp is subsequently fed to a disc disperser where the pulp is processed to reduce the amount of impurities in the pulp, such as printer's ink, wax, bitumen and so forth.
  • a slowly rotating screw is used in the heating zone where steam is added at certain points across the screw through a manifold.
  • the steam emits thermal energy on condensation, and the pulp is heated.
  • the screw may be whole or in pieces.
  • a preheating screw of this kind is usually dimensioned for about three minutes residence time and about 50% of filling.
  • the speed of rotation of a preheater of this type is in the range of 5 to 15 revolutions/minute.
  • the slow rotation of the screw causes little mixing of the pulp, so that there may be large temperature gradients in the pulp.
  • the condensing steam will thus have poor contact with the pulp particles.
  • the pulp particles may be quite large in a conventional preheater, so a relatively long time is required to heat the pulp particles through.
  • a device is therefore proposed wherein a very good mixing of steam and particulate material can be obtained so that the pulp is heated evenly, at the same time as it is ensured that the pulp particles are so small that they rapidly become thoroughly heated.
  • the pulp particles are reduced in size in that a rapidly rotating grinder is used to mix pulp and steam.
  • a device for the processing of particulate material comprising a grinder, means for introducing a particulate material into the grinder; a disc disperser and means for transferring particulate material from the grinder to the disc disperser; means for removing the particulate material from the disc disperser, and means for introducing steam into the device to heat the particulate material, said device being characterised in that the grinder is a disc disperser.
  • the amount of the impurities in the pulp such as printer's ink. wax, bitumen and so forth will, as known from prior art, be reduced.
  • the means for adding steam to open centrally into the first disc disperser that is used as a rapidly rotating grinder is especially expedient for the means for adding steam to open centrally into the first disc disperser that is used as a rapidly rotating grinder.
  • the means for adding steam can also open centrally into the second disc disperser.
  • the first disc disperser can function as a predisperser where impurities are dispersed whilst the pulp is relatively cold, which will be advantageous for certain printer's inks, such as laser and Xerox, whereas the second disc disperser will function as a main disperser whilst the pulp is hot, which will be advantageous in the case of impurities such as so-called stickies and so forth.
  • the means for introducing the particulate material into the first disc disperser may to advantage comprise a screw feeder having a hollow shaft for supplying steam to the first disc disperser, thereby obtaining the advantage that the steam is fed centrally into the disc disperser and the pulp therein.
  • the means for transferring the particulate material can comprise a screw feeder with a hollow shaft for feeding steam to the interior of the attached disc disperser.
  • Figure 1 is a purely schematic illustration of a device according to the invention
  • Figure 2 is a purely schematic illustration of a modified embodiment of a device according to the invention.
  • Figure 3 is a more artistic perspective view of a plant where a device according to the invention is used.
  • the device illustrated in Fig. 1 comprises a disc disperser 1 with a screw feeder 2.
  • the disc disperser 1 essentially comprises a stator disc 3 and a rotor disc 4, driven by a motor 5.
  • the device comprises a second disc disperser 8, constructed in the same way as the first disc disperser 1, i.e., with a screw feeder 9, a stator disc 10 and a rotor disc 11 , driven by a motor 12.
  • the pulp which is to be processed is introduced into the screw feeder 2 as shown by means of the arrow 6. From the first disc disperser 1 the pulp treated therein passes to the screw feeder 9, as indicated by means of the arrow 7.
  • Dispersed pulp exits the second disperser 8 as indicated by means of the arrow 13.
  • Steam as a heating medium can be supplied to the first disperser 1 through the hollow shaft 14 of the screw feeder 2, as indicated by means of the arrow 15. The steam can in this way be fed centrally into the disc disperser 1 , and thus centrally into the pulp introduced into the disc disperser by means of the screw feeder 2.
  • the second disc disperser 8 has an attached screw feeder 9 having a solid shaft 16.
  • the device according to the invention may also be realised in a modified form, as shown in Fig. 2.
  • the only difference between the device in Fig. 1 and that in Fig. 2 is that the shaft of the screw feeder 9 is made as a hollow shaft 16', through which steam can be fed as indicated by means of the arrow 17.
  • Figure 3 shows a plant where the device according to the invention is used.
  • the same reference numerals are used here for the plant components which correspond to those shown in Fig. 2.
  • the plant comprises a screw press 18, having a pulp inlet 19 and an outlet 20, which goes to a screw feeder 2 via an inflow 6.
  • the screw feeder 2 is attached to a disc disperser 1.
  • the outlet of the disc disperser 1 is connected to a screw conveyor whose function corresponds to the arrow 7 in Fig. 2 and has therefore been given the same reference numeral.
  • the screw conveyor 7 has an outlet which opens into a screw feeder 9, attached to a second disc disperser 8.
  • the outlet of the disc disperser 8 is designated 13 in accordance with the corresponding arrow in Figure 2. Steam can be fed to the disc disperser 1 and/or 8 according to need through respective steam pipes 15,17 which are connected to the respective hollow shafts 14J 6'.
  • the screw press 18 represents a dewatering zone where the pulp is dewatered. Thence, the pulp passes to the first disc disperser 1. Steam is added in the centre of the disc disperser 1, and can simultaneously also be added in the disc disperser 8, which receives pulp from the disc disperser 1.
  • the pulp is mixed well with the added steam at the same time as the size of the pulp particles is reduced.
  • the second disperser 8 a reduction of the amount of impurities, such as printer's ink, wax, bitumen and so forth, is carried out in a known way.
  • the disc disperser 1 may also be used as a predisperser, the two dispersers then operating under different temperature conditions.
  • the predisperser 1 will disperse impurities whilst the pulp is relatively cold, which is advantageous in the case of certain printer's inks such as laser and Xerox, whilst the disperser 8 as main disperser will disperse whilst the pulp is hot, which is advantageous in the case of impurities such as stickies and so forth.
  • the advantage is obtained that the preheating period is very short, as a consequence of the good mix of steam and pulp and also minimal size of the pulp particles. It will be possible to mix bleaching chemicals into the pulp and/pr improve the efficiency of the actual dispersion of the impurity particles in the pulp.
  • the device is flexible and provides the possibility of dispersion at two temperature levels, cold and hot pulp respectively (steam supply in the second disperser only).

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Insulating Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un dispositif de traitement de matière particulaire comprenant un défibreur (1), un moyen (2) d'introduction d'une matière particulaire dans le défibreur; un distributeur (8) à disques, ainsi que des moyens (7, 9) destinés à transférer la matière particulaire du défibreur (1) au distributeur (8) à disques, un moyen (13) destiné à retirer la matière particulaire du distributeur (8) à disques; ainsi qu'un moyen (14) destiné à ajouter de la vapeur dans le dispositif afin de chauffer ladite matière particulaire. L'invention est caractérisée en ce que le défibreur (1) est un défibreur tournant rapidement se présentant sous la forme d'un distributeur à disques.
PCT/NO1995/000226 1994-12-14 1995-12-07 Dispositif de traitement d'une masse particulaire Ceased WO1996018769A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU42729/96A AU4272996A (en) 1994-12-14 1995-12-07 Means for treatment of particle mass

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO944847A NO180241C (no) 1994-12-14 1994-12-14 Innretning for behandling av partikkelmasse
NO944847 1994-12-14

Publications (1)

Publication Number Publication Date
WO1996018769A1 true WO1996018769A1 (fr) 1996-06-20

Family

ID=19897755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1995/000226 Ceased WO1996018769A1 (fr) 1994-12-14 1995-12-07 Dispositif de traitement d'une masse particulaire

Country Status (3)

Country Link
AU (1) AU4272996A (fr)
NO (1) NO180241C (fr)
WO (1) WO1996018769A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712653A1 (de) * 1997-03-26 1998-10-01 Voith Sulzer Stoffaufbereitung Verfahren und Vorrichtung zur Dispergierung eines Papierfaserstoffes
DE19712651A1 (de) * 1997-03-26 1998-10-01 Voith Sulzer Stoffaufbereitung Verfahren und Vorrichtung zur Herstellung eines heißen, überwiegend Papierfasern enthaltenden Krümelstoffes
US6651839B2 (en) 2001-01-19 2003-11-25 Voith Paper Patent Gmbh Device for hot dispersing fibrous paper stock and a method hot dispersing the stock
WO2004046455A1 (fr) * 2002-11-18 2004-06-03 M-Real Oyj Procede et appareil permettant de produire des fibres mecaniques
WO2006097180A1 (fr) * 2005-03-17 2006-09-21 Voith Patent Gmbh Procede et dispositif pour charger en matiere de charge des fibres contenues dans une suspension de matiere fibreuse
CN1306113C (zh) * 2002-03-27 2007-03-21 安德里茨有限公司 分散再生纤维纸浆的装置
CN102356194A (zh) * 2009-03-17 2012-02-15 美卓造纸机械公司 用于对木片或浆纤维进行磨浆的方法、系统以及磨浆机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235665A (en) * 1976-06-30 1980-11-25 American Defibrator, Inc. Method and apparatus for producing fiber pulp in a steam pressurized grinding system
WO1994027713A1 (fr) * 1993-05-24 1994-12-08 Andritz-Patentverwaltungs-Gesellschaft M.B.H. Melangeur, notamment melangeur a grand rendement permettant d'affiner des matieres prebroyees

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235665A (en) * 1976-06-30 1980-11-25 American Defibrator, Inc. Method and apparatus for producing fiber pulp in a steam pressurized grinding system
WO1994027713A1 (fr) * 1993-05-24 1994-12-08 Andritz-Patentverwaltungs-Gesellschaft M.B.H. Melangeur, notamment melangeur a grand rendement permettant d'affiner des matieres prebroyees

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712651A1 (de) * 1997-03-26 1998-10-01 Voith Sulzer Stoffaufbereitung Verfahren und Vorrichtung zur Herstellung eines heißen, überwiegend Papierfasern enthaltenden Krümelstoffes
EP0886001A1 (fr) * 1997-03-26 1998-12-23 Voith Sulzer Papiertechnik Patent GmbH Procédé et appareil pour disperser une pulpe de fibres de papier
US6073865A (en) * 1997-03-26 2000-06-13 Voith Sulzer Papiertechnik Patent Gmbh Process and devices for manufacturing a hot friable material
US6250573B1 (en) 1997-03-26 2001-06-26 Voith Sulzer Papiertechnik Patent Gmbh Process and device for the dispersion of a fibrous paper material
DE19712653C2 (de) * 1997-03-26 2002-10-24 Voith Paper Fiber Systems Gmbh Verfahren und Vorrichtung zur Dispergierung eines Altpapierfaserstoffes
US6634583B2 (en) 1997-03-26 2003-10-21 Voith Paper Patent Gmbh Process and device for the dispersion of a fibrous paper material
DE19712653A1 (de) * 1997-03-26 1998-10-01 Voith Sulzer Stoffaufbereitung Verfahren und Vorrichtung zur Dispergierung eines Papierfaserstoffes
US6651839B2 (en) 2001-01-19 2003-11-25 Voith Paper Patent Gmbh Device for hot dispersing fibrous paper stock and a method hot dispersing the stock
CN1306113C (zh) * 2002-03-27 2007-03-21 安德里茨有限公司 分散再生纤维纸浆的装置
WO2004046455A1 (fr) * 2002-11-18 2004-06-03 M-Real Oyj Procede et appareil permettant de produire des fibres mecaniques
JP2006506547A (ja) * 2002-11-18 2006-02-23 アムーレアル オサケ ユキチュア ユルキネン 機械的精砕繊維を製造するための方法及び装置
US7237733B2 (en) 2002-11-18 2007-07-03 M-Real Oyj Method and apparatus for producing mechanical fibers
RU2336382C2 (ru) * 2002-11-18 2008-10-20 М-Риал Оий Способ получения механической волокнистой массы и устройство для его осуществления
CN100458011C (zh) * 2002-11-18 2009-02-04 M-真实公司 用于生产机械纤维的方法和设备
WO2006097180A1 (fr) * 2005-03-17 2006-09-21 Voith Patent Gmbh Procede et dispositif pour charger en matiere de charge des fibres contenues dans une suspension de matiere fibreuse
CN102356194A (zh) * 2009-03-17 2012-02-15 美卓造纸机械公司 用于对木片或浆纤维进行磨浆的方法、系统以及磨浆机

Also Published As

Publication number Publication date
NO180241B (no) 1996-12-02
NO180241C (no) 1997-03-12
AU4272996A (en) 1996-07-03
NO944847L (no) 1996-06-17
NO944847D0 (no) 1994-12-14

Similar Documents

Publication Publication Date Title
CA1332080C (fr) Appareil de production de boue en boulettes a teneur uniforme en matieres solides et methode connexe
JP2731822B2 (ja) 木質セルロース材料特には紙パルプのオゾン処理方法とこの方法を実施する反応器
US3921918A (en) Mechanical refining of fiber material including steam recycle
WO1996018769A1 (fr) Dispositif de traitement d'une masse particulaire
GB1569383A (en) Method and device in connection with manufakture of fibre pulp in a steam-pres-surised grinding apparatus
CA2189901A1 (fr) Dispositif et appareil de traitement mecanique pour matieres fibreuses tres concentrees
US2943012A (en) Method and apparatus for fiberizing fibrous material
US3891497A (en) Non-aqueous defiberizing process of waste paper in the presence of steam and a liquid nonmiscible in water, e.g., tetrachlorethylene
NO833688L (no) Fremgangsmaate og anordning til fremstilling av fibermasser av lignocelluloseholdig materiale
FI102358B (fi) Menetelmä kuitumassan käsittelemiseksi ja laitteisto tätä varten
FI62149C (fi) Foerfarande foer framstaellning av varmslipmassa
EP0606250B2 (fr) Procede et dispositif de traitement de matiere fibreuse
KR840003316A (ko) 휴지로 부터 섬유질 물질의 제조방법
GB1588430A (en) Device for use in refining apparatus for lignocellulosic material
SE456430B (sv) Sett for framstellning av mekanisk massa
US3801434A (en) Method in the manufacture of lignocellulosic fibreboard
WO1979000634A1 (fr) Methode de fabrication de pate a papier
RU2336382C2 (ru) Способ получения механической волокнистой массы и устройство для его осуществления
NO20031223D0 (no) Fremgangsmåte og anordning for dispergering av en fibermasse
SU1664929A1 (ru) Установка дл пропарки и размола древесно-волокнистого сырь
AU660700B2 (en) Method for preparing aqueous mineral suspensions
JP2006051461A (ja) 汚泥を粒状物へ処理する方法及びその方法を実施する処理プラント
US3712550A (en) Apparatus for processing effluent sludge
KR19990031160A (ko) 습윤 셀룰로오스 에테르를 포함하는 분쇄될 재료를 동시에 분쇄 및 건조하는 방법 및 장치
US1886020A (en) Process of and apparatus for treating fibrous material

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA