EP1124002B1 - Classeur pour la purification d'une suspension fibreuse - Google Patents

Classeur pour la purification d'une suspension fibreuse Download PDF

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Publication number
EP1124002B1
EP1124002B1 EP01101567A EP01101567A EP1124002B1 EP 1124002 B1 EP1124002 B1 EP 1124002B1 EP 01101567 A EP01101567 A EP 01101567A EP 01101567 A EP01101567 A EP 01101567A EP 1124002 B1 EP1124002 B1 EP 1124002B1
Authority
EP
European Patent Office
Prior art keywords
rotor
baffle
screen
cone
infeed
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.)
Revoked
Application number
EP01101567A
Other languages
German (de)
English (en)
Other versions
EP1124002A3 (fr
EP1124002A2 (fr
Inventor
Helmut Dipl. Ing. Dr. Gabl
Axel Dipl. Ing. Pichler
Alexander Dipl. Ing. Gscheider
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.)
Andritz AG
Original Assignee
Andritz AG
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=3652162&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1124002(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz AG filed Critical Andritz AG
Publication of EP1124002A2 publication Critical patent/EP1124002A2/fr
Publication of EP1124002A3 publication Critical patent/EP1124002A3/fr
Application granted granted Critical
Publication of EP1124002B1 publication Critical patent/EP1124002B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • D21D5/02—Straining or screening the pulp
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils

Definitions

  • the invention relates to a sorter for cleaning a Pulp suspension, wherein a cylindrical sieve is provided.
  • Graders are machines used in the paper industry for cleaning a pulp suspension consisting of water, fiber and Dirt particles exists.
  • a feed stream over a Led sieve device wherein the accept current, consisting of water and fibers through which the sieve passes.
  • a partial flow, called The flow of the project, consisting of water, fibers and pollutants, is in the general at the opposite end of the feed stream deducted.
  • a separation of in Liquid present solid particles.
  • the liquid separated from the solid is rotationally symmetrical and consists of a Housing with a tangentially arranged inlet, a cylindrical Strainer basket, usually with holes or vertical slots provided and a rotating rotor.
  • the task of the rotor consists in the Freeing the sieve slots, which by just on the Siebober constitutional rotating wing is reached.
  • the accept stream is in one so-called acceptance space, which is often conical, collected and withdrawn radially at one point.
  • the reject current generally becomes on the side opposite the feed side of the screen basket in one mostly annular Rejektraum led and from this tangential deducted.
  • Such a sorter is e.g. from US 4,268,381.
  • the disadvantage of this sorting machines is that by a relatively large Rejektraum the risk of clogging low flow rates occurs. Furthermore, one occurs Non-uniform flow of the screen basket and uneven Flow conditions in acceptance space, especially in the area of Gustoffaustritts, up.
  • the aim of the invention is therefore to improve the To create flow conditions in the sorter, so that one Reduction of the energy used with increased production and To achieve dirt separation.
  • the invention is therefore characterized in that the acceptance space is configured in a double-conical manner and in the flow direction of the Fiber suspension expanded conically. So is a uniform Flow rate and thus optimal energy use achieved.
  • An advantageous embodiment of the invention is characterized in that that the accept space conically from the mouth of the accept outlet rejuvenated towards the reject outlet. This can be a consistent Flow rate can be achieved throughout the acceptance space.
  • An advantageous development of the invention is characterized in that that the sorter is designed as a double machine.
  • a favorable development of the invention is characterized in that that the inlet takes place axially through the rotor.
  • a favorable embodiment of the invention is characterized in that that the drive-side rotor part in height equal to or greater than that on and flowed through, the drive side facing away from rotor part.
  • a favorable embodiment of the invention is characterized in that that the inlet takes place centrally from the side.
  • An advantageous embodiment of the invention is characterized in that that the sorter is arranged horizontally.
  • a favorable development of the invention is characterized in that that for pre-sorting a co-rotating with the rotor screen basket in Zulauf Schl is provided, wherein also in Vorsortier Buffalo Rails can be provided.
  • a favorable development of the invention is characterized in that that distributed on the rotor several wings in height and / or on the circumference are provided.
  • An advantageous embodiment of the invention is characterized in that that in the inlet region between the pipe socket and the end of the rotor stationary installation is provided, which are designed rotationally symmetrical can. This will be a significant improvement in the Flow conditions and subsequently a reduction of energy used.
  • An advantageous development of the invention is characterized in that that the installation a cone, a truncated cone, hemisphere, spherical segment, Sphere layer, paraboloid or bivalve hyperboloid.
  • a favorable embodiment of the invention is characterized in that that when installed as a cone or truncated cone, the cone angle ⁇ between 10 ° and 60 °.
  • a favorable development of the invention is characterized in that that the axis of the inlet nozzle is arranged parallel to the conical surface is. This allows the flow to be better managed and the Energy losses are further reduced.
  • a favorable alternative embodiment of the invention is characterized characterized in that the installation is a spiral body, wherein the Slope of the spiral can be chosen such that the Flow velocity in the inlet area over the entire Bin width is constant.
  • An advantageous development of the invention is characterized in that that the installation is arranged centrally.
  • Fig. 2 shows an alternative embodiment of the invention
  • Fig. 3 shows an embodiment a double machine
  • Fig. 4 shows the area for an integrated Presorting
  • Fig. 5 is a diagram of the dependence of the specific Energy for Sieb malströmung
  • Fig. 6 is a diagram of Schmutzticianredulement represents the Sieb thoroughlyströmung.
  • Fig. 1 shows a sorter 1, through an inlet nozzle 2 a Pulp suspension is supplied for cleaning.
  • an installation 3 is provided, which is shown here as a truncated cone is.
  • the "tip" of the truncated cone points here in the direction of the rotor 4th
  • the flank angle ⁇ of the truncated cone between 10 ° and 60 °.
  • the pulp suspension enters the room between the rotor 4 and sieve 5 and is passed through the sieve in the Acceptance room 6 promoted.
  • the housing of the acceptance space is executed conically, that is, the housing tapers approximately from the Upper edge of the accept outlet 7 conically towards the Rejektraum out, where the angle of acceptance space for a consistent Flow rate assuming uniform Outflow is designed through the sieve.
  • the rotor 4 of the sorter 1 is for a uniform Siebanströmung, which has a low thickening behavior above the screen height conditioned, designed. It has the form of a parabola, so that the Axial flow velocity within the screen basket at assumed uniform outflow through the sieve constant beibt. Alternatively, the shape of the rotor may also have a cone shape be approximated.
  • Fig. 2 shows an analog arrangement of a sorter 1, wherein here the Inlet nozzle 2 is arranged so that the suspension is parallel to the wall the truncated cone 3 is supplied. As a result, the energy loss, which is otherwise present at flow deflection, be avoided.
  • Fig. 3 shows the execution of a top machine, as they are for high Production services is carried out.
  • the rotor becomes e.g. when Double parabolic rotor 4, 4 'or double bevel rotor executed.
  • the Rejektabzug 8, 8 'and the strainer 5, 5' is in duplicate intended.
  • the accept space 6, 6 ' is designed doppelkonisch, i.e. turn, that the housing approximately from the top of the Acceptance outlet tapers conically towards the rejection space.
  • the pulp suspension is in turn fed via the supply nozzle 2 and in the illustrated embodiment axially guided by the rotor.
  • This type of flow is the drive-side rotor part 4 in height L1 equal to or greater than the on and flowed through, the drive side remote rotor part 4 'with the height L2.
  • the suspension occurs in the middle Area through openings 9 from the perfused rotor part 4 'and is distributed here in both directions. It occurs like a simple one Grader through the screen basket 5, 5 'through into the accept space 6, 6 ', which is also designed doppelkonisch here.
  • the reject flows both up and down and is here in one Reject space 8, 8 'discharged from the machine.
  • the inlet can also be done centrally from one side.
  • the accept outlet may be either double, i. above (7 ') or below (7) or simply be mounted centrally.
  • the sorting machine can do this also be executed in a lying form.
  • Fig. 4 now shows the upper part of a sorter 1 with an integrated Presorting.
  • the sorter 1 via the inlet nozzle 2 the Supplied pulp suspension.
  • a Vorsortier Scheme 10 provided in the suspension passes through a sieve 11. This allows specific heavy parts and large-scale contaminations that come from polluted or high contaminated pulp, be removed well.
  • a rotor 12 runs along with the rotor 4 via a Extension 13 is connected. The heavy parts leave the Vorsortier Scheme by a nozzle 14.
  • the rotor 12 can in Vorsortier Scheme 10 both in the feed stream (as shown) or in the Acceptance current, which then a further fine sorting in the lower range the sorter 1 is supplied, run. Does the rotor 12 in the feed stream, so by the rotating cleaning blades of the rotor 12, the strong Abrasive abrasive particles are held on the surface of the Turn sieves 11 open and damage them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)

Claims (19)

  1. Classeur pour l'épuration d'une suspension de pâte, où un crible cylindrique est prévu, caractérisé en ce que la chambre d'acceptes (6, 6') est étudiée en forme de cône double, et qu'elle s'élargit au sens d'écoulement de la suspension de pâte.
  2. Dispositif selon la revendication 1, caractérisé en ce que la chambre d'acceptes (6, 6') s'effile entre la bouche de la décharge d'acceptes (7, 7') et la décharge des déchets (8, 8').
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le classeur (1) est étudié en tant que machine double.
  4. Dispositif selon la revendication 3, caractérisé en ce que l'amenée a lieu axialement au travers du rotor (4).
  5. Dispositif selon la revendication 4, caractérisé en ce que la partie du rotor (4) se situant au côté d'entraínement est de hauteur égale ou plus haute par rapport à la partie du rotor (4') se situant de l'autre côté de l'entraínement où la pâte coule et par lequel elle passe.
  6. Dispositif selon la revendication 5, caractérisé en ce que l'amenée se fait latéralement, au centre.
  7. Dispositif selon l'une des revendications 3 à 6, caractérisé en ce que deux décharges (7, 7') sont prévues pour les acceptes.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que le classeur (1) est placé horizontalement
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'un panier de crible (11) qui tourne ensemble avec le rotor (12) est prévu pour la classification préliminaire dans la zone d'amenée.
  10. Dispositif selon la revendication 9, caractérisé en ce que des ailes rotatives sont prévues dans la zone de classification préliminaire (10).
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que le rotor (4, 4') a plusieurs ailes montées à des niveaux différents et/ou distribuées sur la circonférence.
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce qu'une chicane stationnaire (3) est prévue dans la zone d'amenée entre la prise du tuyau (2) et le bout libre du rotor (4).
  13. Dispositif selon la revendication 12, caractérisé en ce que la chicane (3) est étudiée à symétrie de révolution.
  14. Dispositif selon la revendication 13, caractérisé en ce que la chicane (3) est un cône, un cône tronqué, un hémisphère, un segment sphérique, un segment sphérique à deux bases, un paraboloide, ou un hyperboloide à deux nappes.
  15. Dispositif selon la revendication 14, avec une chicane (3) en forme de cône ou cône tronqué, caractérisé en ce que l'angle α du cône se situe entre 10° et 60°.
  16. Dispositif selon la revendication 15, caractérisé en ce que l'axe de la prise d'amenée est disposé en parallèle à la chemise du cône.
  17. Dispositif selon la revendication 13, caractérisé en ce que la chicane (3) est un corps en forme hélicoïdale.
  18. Dispositif selon la revendication 17, caractérisé en ce que le pas de l'hélice est tel que la vitesse d'écoulement dans la zone d'amenée est constante sur toute la largeur du panier de crible.
  19. Dispositif selon l'une des revendications 12 à 18, caractérisé en ce que la chicane (3) est disposée au centre.
EP01101567A 2000-02-03 2001-01-25 Classeur pour la purification d'une suspension fibreuse Revoked EP1124002B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1632000 2000-02-03
AT0016300A AT408770B (de) 2000-02-03 2000-02-03 Sortierer zur reinigung einer faserstoffsuspension

Publications (3)

Publication Number Publication Date
EP1124002A2 EP1124002A2 (fr) 2001-08-16
EP1124002A3 EP1124002A3 (fr) 2001-11-21
EP1124002B1 true EP1124002B1 (fr) 2005-03-09

Family

ID=3652162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101567A Revoked EP1124002B1 (fr) 2000-02-03 2001-01-25 Classeur pour la purification d'une suspension fibreuse

Country Status (9)

Country Link
US (1) US6499603B2 (fr)
EP (1) EP1124002B1 (fr)
CN (1) CN1180161C (fr)
AT (2) AT408770B (fr)
BR (1) BR0100351A (fr)
CA (1) CA2333802A1 (fr)
DE (1) DE50105500D1 (fr)
ES (1) ES2238345T3 (fr)
MX (1) MXPA01001292A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6915910B2 (en) * 2001-04-16 2005-07-12 J&L Fiber Services, Inc. Screen cylinder and method
DE10233364C1 (de) * 2002-07-23 2003-12-24 Voith Paper Patent Gmbh Drucksortierer zum Sieben einer Faserstoffsuspension
AT413390B (de) 2003-03-27 2006-02-15 Andritz Ag Maschf Sortierer zur reinigung einer fasersuspension
FI117867B (fi) * 2004-12-10 2007-03-30 Metso Paper Inc Lajitin ja menetelmä kuitumassan lajittelemiseksi
CN106079150A (zh) * 2016-06-30 2016-11-09 重庆浩立塑胶有限公司 送料选料装置
CN108482960A (zh) * 2018-04-25 2018-09-04 新乡市东振机械制造有限公司 一种带有筛选功能的螺旋输送机
CN108606148A (zh) * 2018-06-18 2018-10-02 张方富 一种雪梨苹果燕麦软糖的制备方法及其装置
CN109174627B (zh) * 2018-10-29 2023-04-25 天津绿之本生物科技有限公司 一种有机肥筛分机
CN112845081B (zh) * 2021-01-26 2022-09-06 衢州宝红建材有限公司 一种沙石除杂多级离心筛分设备
CN116140177B (zh) * 2023-02-24 2024-07-05 中材江苏太阳能新材料有限公司 一种光伏石英管用石英砂的加料装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268381A (en) * 1979-05-03 1981-05-19 Uniweld Inc. Rotary pulp screening device of the vertical pressure type
FI82493C (fi) * 1989-06-05 1991-03-11 Tampella Oy Ab Massaloesare.
IL91150A (en) * 1989-07-28 1991-05-12 Amrad Res & Dev Filter
US5096127A (en) * 1990-08-22 1992-03-17 Ingersoll-Rand Company Apparatus for pressurized screening of a fibrous material liquid suspension
DE4135854A1 (de) * 1991-10-31 1993-05-06 J.M. Voith Gmbh, 7920 Heidenheim, De Sortierer
DE59207688D1 (de) * 1992-06-20 1997-01-23 Finckh Maschf Drucksortierer für fasersuspensionen

Also Published As

Publication number Publication date
EP1124002A3 (fr) 2001-11-21
MXPA01001292A (es) 2005-08-16
ATE290625T1 (de) 2005-03-15
AT408770B (de) 2002-03-25
US20010019025A1 (en) 2001-09-06
ES2238345T3 (es) 2005-09-01
US6499603B2 (en) 2002-12-31
CA2333802A1 (fr) 2001-08-03
ATA1632000A (de) 2001-07-15
CN1310259A (zh) 2001-08-29
EP1124002A2 (fr) 2001-08-16
CN1180161C (zh) 2004-12-15
DE50105500D1 (de) 2005-04-14
BR0100351A (pt) 2001-10-02

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