EP1124002B1 - Sortierer zur Reinigung einer Faserstoffsuspension - Google Patents
Sortierer zur Reinigung einer Faserstoffsuspension Download PDFInfo
- 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
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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- the accept stream is in one so-called acceptance space, which is often conical, collected and withdrawn radially at one point.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)
Description
Claims (19)
- Sortierer zur Reinigung einer Faserstoffsuspension, wobei ein zylindrisches Sieb vorgesehen ist, dadurch gekennzeichnet, daß der Akzeptraum (6, 6') doppel-konisch ausgestaltet ist und sich in Strömungsrichtung der Faserstoffsuspension erweitert.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sich der Akzeptraum (6, 6') ab der Mündung des Akzeptauslasses (7, 7') konisch zum Rejektauslass (8, 8') hin verjüngt.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Sortierer (1) als Doppelmaschine ausgebildet ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Zulauf axial durch den Rotor (4) erfolgt.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der antriebsseitige Rotorteil (4) in seiner Höhe gleich oder größer als der an- und durchströmte, der Antriebsseite abgewandte Rotorteil (4') ist.
- Vorrichtung nach Anspruch 5, dadurch gekennezeichnet, daß der Zulauf mittig von der Seite erfolgt.
- Vorrichtung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß der Akzeptauslaß (7, 7') zweifach vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Sortierer (1) liegend angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß zur Vorsortierung ein mit dem Rotor (12) mitdrehender Siebkorb (11) im Zulaufbereich vorgesehen ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß im Vorsortierbereich (10) rotorierende Flügel vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß am Rotor (4, 4') mehrere Flügel in der Höhe und/oder Umfang verteilt vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß im Zulaufbereich zwischen Rohrstutzen (2) und dem freien Ende des Rotors (4) ein stationärer Einbau (3) vorgesehen ist.
- Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Einbau (3) rotationssymetrisch ist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß der Einbau (3) ein Kegel, Kegelstumpf, Halbkugel, Kugelsegment, Kugelschicht, Paraboloid oder zweischaliges Hyperboloid ist.
- Vorrichtung nach Anspruch 14, mit einem Einbau (3) als Kegel oder Kegelstumpf, dadurch gekennzeichnet, daß der Kegelwinkel α zwischen 10° und 60° beträgt.
- Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß die Achse des Zulaufstutzens parallel zum Kegelmantel angeordnet ist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß der Einbau (3) ein spiralförmiger Körper ist.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, daß die Steigung der Spirale derart gewählt wird, daß die Strömungsgeschwindigkeit im Zulaufbereich über der gesamten Sortierkorbbreite konstant ist.
- Vorrichtung nach einem der Ansprüche 12 bis 18, dadurch gekennzeichnet, daß der Einbau (3) zentrisch angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0016300A AT408770B (de) | 2000-02-03 | 2000-02-03 | Sortierer zur reinigung einer faserstoffsuspension |
AT1632000 | 2000-02-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1124002A2 EP1124002A2 (de) | 2001-08-16 |
EP1124002A3 EP1124002A3 (de) | 2001-11-21 |
EP1124002B1 true EP1124002B1 (de) | 2005-03-09 |
Family
ID=3652162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01101567A Revoked EP1124002B1 (de) | 2000-02-03 | 2001-01-25 | Sortierer zur Reinigung einer Faserstoffsuspension |
Country Status (9)
Country | Link |
---|---|
US (1) | US6499603B2 (de) |
EP (1) | EP1124002B1 (de) |
CN (1) | CN1180161C (de) |
AT (2) | AT408770B (de) |
BR (1) | BR0100351A (de) |
CA (1) | CA2333802A1 (de) |
DE (1) | DE50105500D1 (de) |
ES (1) | ES2238345T3 (de) |
MX (1) | MXPA01001292A (de) |
Families Citing this family (10)
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)
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 |
JP3542594B2 (ja) * | 1992-06-20 | 2004-07-14 | ボイト フィンク ファイバー システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディト ゲゼルシャフト | 繊維懸濁液用加圧分離装置 |
-
2000
- 2000-02-03 AT AT0016300A patent/AT408770B/de not_active IP Right Cessation
-
2001
- 2001-01-25 EP EP01101567A patent/EP1124002B1/de not_active Revoked
- 2001-01-25 AT AT01101567T patent/ATE290625T1/de not_active IP Right Cessation
- 2001-01-25 DE DE50105500T patent/DE50105500D1/de not_active Revoked
- 2001-01-25 ES ES01101567T patent/ES2238345T3/es not_active Expired - Lifetime
- 2001-01-31 CA CA002333802A patent/CA2333802A1/en not_active Abandoned
- 2001-02-02 US US09/776,017 patent/US6499603B2/en not_active Expired - Fee Related
- 2001-02-02 MX MXPA01001292A patent/MXPA01001292A/es active IP Right Grant
- 2001-02-02 CN CNB011119780A patent/CN1180161C/zh not_active Expired - Lifetime
- 2001-02-05 BR BR0100351-8A patent/BR0100351A/pt active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
AT408770B (de) | 2002-03-25 |
BR0100351A (pt) | 2001-10-02 |
DE50105500D1 (de) | 2005-04-14 |
ES2238345T3 (es) | 2005-09-01 |
ATA1632000A (de) | 2001-07-15 |
MXPA01001292A (es) | 2005-08-16 |
EP1124002A3 (de) | 2001-11-21 |
CN1310259A (zh) | 2001-08-29 |
CA2333802A1 (en) | 2001-08-03 |
US20010019025A1 (en) | 2001-09-06 |
ATE290625T1 (de) | 2005-03-15 |
US6499603B2 (en) | 2002-12-31 |
EP1124002A2 (de) | 2001-08-16 |
CN1180161C (zh) | 2004-12-15 |
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