EP1462567A1 - Sortierer zur Reinigung einer Fasersuspension - Google Patents
Sortierer zur Reinigung einer Fasersuspension Download PDFInfo
- Publication number
- EP1462567A1 EP1462567A1 EP04006304A EP04006304A EP1462567A1 EP 1462567 A1 EP1462567 A1 EP 1462567A1 EP 04006304 A EP04006304 A EP 04006304A EP 04006304 A EP04006304 A EP 04006304A EP 1462567 A1 EP1462567 A1 EP 1462567A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- sorter according
- separation unit
- dilution water
- sorter
- 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.)
- Granted
Links
- 238000000746 purification Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000725 suspension Substances 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 43
- 238000010790 dilution Methods 0.000 claims description 28
- 239000012895 dilution Substances 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
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 fiber suspension according to the preamble of claim 1.
- Sorters are machines used in the paper industry to clean one Stock suspension consisting of water, fibrous materials and dirt particles.
- an inlet stream is passed over a sieving device, the acceptance stream, consisting of water and fibers, flows through the sieve.
- a partial flow called reject stream consisting of water, fibers and contaminants, is in the generally deducted at the end opposite the feed stream. Consequently the sorters separate solids present in liquid Particles. In contrast, the liquid becomes a solid during filtration separated.
- such a sorter is rotationally symmetrical and consists of a housing with a tangentially arranged inlet, a cylindrical screen basket, usually provided with holes or vertical slots and a rotating rotor.
- the task of the rotor is to keep the Screen slots, which is achieved by blades rotating just above the screen surface.
- the acceptance stream is in a so-called acceptance room, which is often conical is collected and subtracted radially.
- the reject flow is generally at the the inlet of the strainer basket in a mostly ring-shaped one Rejektraum guided and subtracted tangentially from this.
- Such a sorter is e.g. known from US 4,268,381.
- the rotor in these known sorters is for a uniform flow against the screen designed and has the shape of a parabola, so that the axial Flow velocity within the strainer basket assuming a uniform one Outflow through the sieve remains constant.
- the shape of the Rotors can also be approximated via a cone shape.
- sorters are also known to design sorters as multi-level sorters, which have several include disconnection units connected in series.
- the object of the present invention is to provide a sorter put in which a further improvement of the flow conditions and thus a reduction in energy used with increased production and Dirt separation is achieved.
- Sorters are described in the subclaims.
- the sorter according to the invention is characterized in that the reject outlet is arranged in the range of the maximum diameter of the rotor and that in Area of the reject outlet, in particular immediately below it at least a supply for dilution water is arranged.
- One or more feeds for dilution water can be provided, which are arranged on the housing of the separation unit or on the screen basket and / or on Rotor can be arranged. In case of arranging a feed for Dilution water at the rotor, this feed is preferred by an inside the Rotor located line fed.
- the possibly several inlets for dilution water can be aligned in this way be that dilution water in the direction of the rotor and / or against the Rotor running direction can be introduced.
- the rotational movement of the fiber suspension can thus be reduced.
- the loosening of the suspension can be improved by swirling the suspension become.
- Another preferred embodiment of the sorter according to the invention is characterized and that in the range of the maximum diameter of the Rotors one or more device (s) for interrupting the axial flow is / are arranged.
- sorters in the majority, whereby sorters according to the invention are also meant, which have only one device included to interrupt the axial flow.
- the devices for interrupting the axial flow can be on Housing of the separation unit or arranged on the strainer and / or on the rotor of the Be arranged sorter.
- both sides i.e. both on the housing and on the rotor
- Interrupt devices of the axial flow are possible.
- the devices are preferably one or more axial Flow interrupters rings.
- the flow interrupter ring can, depending on the embodiment be designed continuously or in the form of individual segments or have interruptions.
- the flow interrupter ring (or the flow interrupter rings) can be adjustable so that the size of the one created by the interrupter ring Passage for the reject is changeable.
- the flow interrupter ring can be adjusted, for example, in the manner of a photo iris be executed.
- the flow interrupter ring can also be adjusted statically (e.g. in the form of statically adjustable ring segments).
- the outside diameter of a flow interrupter ring arranged on the rotor side preferably has a tooth-shaped profile.
- the sorter is at least one supply for dilution water with a device for interruption coupled to the axial flow.
- the feed for Dilution water protrude into the space between the housing and the rotor and thus serve as a device for interrupting the axial flow.
- the suspension consistency is the same as before described, adjusted by means of an intermediate dilution. It has proven to be cheap emphasized the concentration of the speck portion by interposing to counteract a deflaking unit.
- the separation unit of the sorter according to the invention accordingly comprises preferably a deflaking unit.
- the deflaking unit is advantageous in shape of one or more arranged on the housing or screen basket and / or on the rotor Rings designed.
- the shape of the internals used corresponds to itself known types, with additional hydraulic guide elements being introduced can to adjust the pressure differences.
- the sorter according to the invention can preferably have two in a manner known per se or comprise a plurality of separation units arranged one after the other, all of which Separation units comprise a common rotor, one for each separation unit Parabolic shape adapted to the flow conditions in the separation unit or has parabolic segment shape.
- each separation unit is preferably at least twice as large as the sum of the heights of the separation units adjoining the separation unit, that is to say that in the case of a sorter with three separation units, the height of the first stage is at least 2/3 of the total height of the unit and that of the second stage at least 2/9 of the total height.
- One or more devices for interrupting the axial flow, as described above, are or are preferably arranged in each separation unit of a multi-stage sorter according to the invention in the region of the maximum diameter.
- each separation unit in the area of the reject outlet or below it at least one feed for dilution water is arranged.
- the supply for dilution water in the lower limit of the rotor segment of a separation unit so that the dilution water in the space below the rotor segment (and so that it is released into the area of the reject outlet or below it).
- the supply for dilution water can be in the upper Area of the rotor segment of the next separation unit can be arranged.
- a multi-stage sorter with at least three separation units is preferably at least one deflaking unit, in particular at the transition from the second to the third separation unit.
- Sorter preferably one or more of the features of the in EP 1 122 358 A2, EP 1 124 002 A2 and EP 1 124 003 A2 sorters.
- the sorter 1 comprises an inlet connection in a manner known per se 2, through which a fiber suspension is fed for cleaning.
- an installation 3 is provided, which is shown here as a truncated cone is.
- the fibrous suspension occurs in the space between the parabolic Rotor 4 and sieve 5 and is passed through the sieve into the acceptance room 6 promoted.
- the housing of the acceptance room is in itself in this embodiment known double-conical design.
- With the reference number 7 is the Accepted outlet.
- the reject is discharged via a reject outlet 8.
- Figure 2 are devices or device parts that with those of Embodiment of the prior art according to Figure 1 are identical to the same reference numerals.
- the sorter 1 consists of three Separation units 1 ', 1 "and 1"'.
- the three separation units 1 ', 1 "and 1'” comprise a common rotor, the respective sections 4 ', 4 "and 4"' adapted to the flow conditions in the each separation unit parabolic or in the form of a paraboloid stump are designed.
- the sections of the rotor can also be frustoconical or approximate to the shape of a parabola.
- Each separation unit has a reject outlet (9 ', 9 ", 9"').
- the reject of the first or second separation unit is simultaneously the inlet for the next one Separation unit.
- the reject of the third and last separation unit is over the Rejek outlet 8 discharged.
- FIG. 10 in FIG. 2 is a line arranged inside the rotor for Dilution water referred to, the outlets of which will be closer below to be discribed.
- FIGS. 3 and 4 now show preferred configurations of a reject outlet (in this case the reject outlet 9 ') in an enlargement of that in the Figure 2 shown dash-dotted cutout.
- the feed 10a ' is in the lower limit of the rotor segment 4' of the first Separation unit 1 'arranged.
- the feed 10b ' is in the upper region of the rotor segment 4 "of the second separation unit 1" arranged.
- the feeds 10a 'and 10b ' can be arranged through a line 10 arranged inside the rotor (see Figure 2) are fed.
- the feed 10c ' is, for example, in the region of a flange 11 between the first Separation unit 1 'and second separation unit 1 "is arranged and is not by a shown line fed.
- an adjusting ring 12a ' is arranged at the lower end of the rotor section 4'.
- the adjustment ring can be arranged so as to be adjustable, for example in the form of a photo iris (indicated by the double arrow).
- the outer diameter of the adjusting ring or its segments preferably has a tooth-shaped profile.
- the embodiment of the reject outlet 9 'shown in FIG. 4 differs from the embodiment according to FIG. 3 in that in addition to the adjusting ring 12a 'a flow interrupter ring 12b' is arranged on the housing side. in the Flow interrupter ring 12b 'is also the housing-side feed 10c' for Dilution water arranged, i.e. the supply for dilution water and the Flow interrupter rings are coupled together.
- the housing-side feed 10c' for Dilution water arranged, i.e. the supply for dilution water and the Flow interrupter rings are coupled together.
- you can also in the embodiment according to FIG. 4 further feeds for Dilution water can be provided on the rotor, as shown in FIG. 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
- Im Zulaufbereich ist ein zusätzlicher Siebkorb zur Vorsortierung vorgesehen.
- Im Zulaufbereich ist zwischen dem Rohrstutzen und dem freien Ende des Rotors ein stationärer Einbau, insbesondere ein Kegel, Kegelstumpf, Halbkugel, Kugelsegment, Kugelschicht, Paraboloid oder zweischaliges Hyperboloid vorgesehen.
- Der Akzeptraum ist doppelt konisch ausgestaltet, erweitert sich in Strömungsrichtung der Faserstoffsuspension und verjüngt sich ab der Mündung des Akzeptauslasses konisch zum Rejektauslass hin.
Bevorzugt ist bzw. sind in jeder Abtrenneinheit eines erfindungsgemäßen mehrstufigen Sortierers im Bereich des maximalen Durchmessers eine oder mehrere Einrichtungen zur Unterbrechung der axialen Strömung, wie oben beschrieben, angeordnet.
- Figur 1
- eine Darstellung eines Sortierers gemäß dem Stand der Technik
- Figur 2
- eine Darstellung eines mehrstufigen Sortierers gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung
- Figur 3
- einen vergrößerten Ausschnitt eines Rejektauslasses des Sortierers gemäß Figur 2
- Figur 4
- einen vergrößerten Ausschnitt einer alternativen Ausführungsform eines Rejektauslasses
Mit dem verstellbaren Ring 12a' kann der Durchsatz der axialen Strömung durch den Rejektauslass 9' geregelt werden.
Claims (19)
- Sortierer (1) zur Reinigung einer Fasersuspension mit zumindest einer Abtrenneinheit (1', 1 ", 1 "'), welche
ein Gehäuse,
einen parabelförmigen oder annähernd parabelförmigen
Rotor (4, 4', 4", 4"'),
einen Siebkorb (5)
einen Akzeptraum (6) und
einen Rejektauslass (9', 9", 9"') umfasst,
dadurch gekennzeichnet, dass
der Rejektauslass (9', 9", 9"') im Bereich des maximalen Durchmessers des Rotors (4', 4", 4"') angeordnet ist und dass
im Bereich des Rejektauslasses (9', 9", 9"'), insbesondere unmittelbar unterhalb davon zumindest eine Zufuhr (10a', 10b', 10c') für Verdünnungswasser angeordnet ist. - Sortierer gemäß Anspruch 1, dadurch gekennzeichnet, dass zumindest eine Zufuhr (10c') für Verdünnungswasser am Gehäuse der Abtrenneinheit bzw. am Siebkorb (5) angeordnet ist.
- Sortierer gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest eine Zufuhr (10a', 10b') für Verdünnungswasser am Rotor (4', 4", 4"') angeordnet ist und durch eine innerhalb des Rotors befindliche Leitung (10) gespeist wird.
- Sortierer gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zumindest eine Zufuhr (10a', 10b', 10c') für Verdünnungswasser so ausgerichtet ist, dass Verdünnungswasser in Rotorlaufrichtung eingebracht werden kann.
- Sortierer gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zumindest eine Zufuhr für Verdünnungswasser (10a', 10b', 10c') so ausgerichtet ist, dass Verdünnungswasser gegen die Rotorlaufrichtung eingebracht werden kann.
- Sortierer gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass im Bereich des maximalen Durchmessers des Rotors eine oder mehrere Einrichtung(en) (12a', 12b') zur Unterbrechung der axialen Strömung angeordnet ist/sind.
- Sortierer gemäß Anspruch 6, dadurch gekennzeichnet, dass die Einrichtung oder zumindest eine der Einrichtungen (12b') zur Unterbrechung der axialen Strömung am Gehäuse der Abtrenneinheit bzw. am Siebkorb (5) angeordnet ist.
- Sortierer gemäß Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Einrichtung oder zumindest eine der Einrichtungen (12a') zur Unterbrechung der axialen Strömung am Rotor (4', 4", 4"') angeordnet ist.
- Sortierer gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass als Einrichtung zur Unterbrechung der axialen Strömung zumindest ein axialer Strömungsunterbrecherring (12a', 12b') vorgesehen ist.
- Sortierer gemäß Anspruch 9, dadurch gekennzeichnet, dass der Strömungsunterbrecherring oder zumindest einer der Strömungsunterbrecherringe (12a', 12b') z.B. nach Art einer Fotoiris verstellbar ist.
- Sortierer gemäß Anspruch 9 oder 10, dadurch gekennzeichnet, dass der Außendurchmesser des Strömungsunterbrecherringes bzw. zumindest eines der Strömungsunterbrecherringe (12a', 12b') ein zahnförmiges Profil aufweist.
- Sortierer gemäß einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, dass zumindest eine Zufuhr für Verdünnungswasser (10c') mit einer Einrichtung zur Unterbrechung der axialen Strömung (12b') gekoppelt ist.
- Sortierer gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abtrenneinheit (1', 1", 1"') eine Entstippungs-einheit (13) umfasst.
- Sortierer gemäß Anspruch 13, dadurch gekennzeichnet, dass die Entstippungseinheit (13) in Form von ein oder mehreren am Gehäuse bzw. Siebkorb (5) und/oder am Rotor (4', 4", 4"') angeordneten Ringen ausgestaltet ist.
- Sortierer gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er zwei oder mehrere nacheinander angeordnete Abtrenneinheiten (1', 1", 1"') umfasst, wobei alle Abtrenneinheiten einen gemeinsamen Rotor (4', 4", 4"') umfassen, der je Abtrenneinheit eine jeweils an die Strömungsverhältnisse in der Abtrenneinheit angepasste Parabelform bzw. Parabelsegmentform aufweist.
- Sortierer gemäß Anspruch 15, dadurch gekennzeichnet, dass die Höhe jeder Abtrenneinheit (1', 1", 1'") zumindest zweimal so groß ist wie die Summe der Höhen der an die Abtrenneinheit anschließenden Abtrenneinheiten.
- Sortierer gemäß Anspruch 15 oder 16, dadurch gekennzeichnet, dass in jeder Abtrenneinheit (1', 1", 1'") im Bereich des maximalen Durchmessers des Rotors (4', 4", 4"') eine oder mehrere Einrichtungen (12a', 12b') zur Unterbrechung der axialen Strömung angeordnet ist/sind.
- Sortierer gemäß einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, dass in jeder Abtrenneinheit (1', 1", 1'") im Bereich des Rejektauslasses (9', 9", 9"'), insbesondere unterhalb davon zumindest eine Zufuhr (10a', 10b', 10c') für Verdünnungswasser angeordnet ist.
- Sortierer gemäß einem der Ansprüche 15 bis 18 mit mindestens drei Abtrenneinheiten (1', 1", 1'"), dadurch gekennzeichnet, dass zumindest eine Entstippungseinheit (13), bevorzugt am Übergang von der zweiten (1") zur dritten Abtrenneinheit (1"'), vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0048503A AT413390B (de) | 2003-03-27 | 2003-03-27 | Sortierer zur reinigung einer fasersuspension |
AT4852003 | 2003-03-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1462567A1 true EP1462567A1 (de) | 2004-09-29 |
EP1462567B1 EP1462567B1 (de) | 2009-08-19 |
Family
ID=32777540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04006304A Expired - Lifetime EP1462567B1 (de) | 2003-03-27 | 2004-03-17 | Sortierer zur Reinigung einer Fasersuspension |
Country Status (8)
Country | Link |
---|---|
US (1) | US20040195169A1 (de) |
EP (1) | EP1462567B1 (de) |
CN (1) | CN100422437C (de) |
AT (2) | AT413390B (de) |
BR (1) | BRPI0401090B1 (de) |
CA (1) | CA2459601A1 (de) |
DE (1) | DE502004009907D1 (de) |
NO (1) | NO20041101L (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011076660A1 (de) * | 2009-12-25 | 2011-06-30 | Voith Patent Gmbh | Verfahren und siebvorrichtung zum sieben einer faserstoffsuspension |
WO2021043609A1 (de) * | 2019-09-04 | 2021-03-11 | Voith Patent Gmbh | Mehrstufige siebvorrichtung |
Citations (9)
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 |
US4697982A (en) | 1986-03-13 | 1987-10-06 | Uniweld Inc. | Rotary pulp screen of the horizontal type having pulp stock feed at different axial positions on the screen |
EP0649940A1 (de) * | 1993-10-20 | 1995-04-26 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Verfahren und Vorrichtung zur Reinigung von Altpapierfaserbrei |
WO1998046821A1 (en) | 1997-04-14 | 1998-10-22 | Sunds Defibrator Industries Ab | Screening apparatus with dilution liquid supply means |
WO2000050690A1 (fr) * | 1999-02-26 | 2000-08-31 | E & M Lamort | Procede et moyens pour la filtration de la pate a papier |
US6241102B1 (en) | 1997-12-19 | 2001-06-05 | Valmet Fibertech Ab | Screening device |
EP1122358A2 (de) | 2000-02-03 | 2001-08-08 | Andritz AG | Sortierer zur Reinigung einer Faserstoffsuspension |
EP1124003A2 (de) | 2000-02-03 | 2001-08-16 | Andritz AG | Sortierer zur Reinigung einer Faserstoffsuspension |
EP1124002A2 (de) | 2000-02-03 | 2001-08-16 | Andritz AG | Sortierer zur Reinigung einer Faserstoffsuspension |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US817333A (en) * | 1905-08-07 | 1906-04-10 | Hjalmar L Orrman | Centrifugal sieving apparatus. |
US4267035A (en) * | 1979-08-27 | 1981-05-12 | The Black Clawson Company | Pressurized rotary screening apparatus |
CA1238604A (en) * | 1983-12-12 | 1988-06-28 | Anthony W. Hooper | Rotary pulp screen of the vertical pressure type having pulp stock feed at different axial positions on the screen |
US5119953A (en) * | 1990-04-02 | 1992-06-09 | Celleco Hedemora Ab | Pulp suspension screening and fractionation apparatus |
US5096127A (en) * | 1990-08-22 | 1992-03-17 | Ingersoll-Rand Company | Apparatus for pressurized screening of a fibrous material liquid suspension |
SE509289C2 (sv) * | 1997-04-14 | 1999-01-11 | Sunds Defibrator Ind Ab | Silanordning med rejektförstrypning |
US6571957B1 (en) * | 2000-08-07 | 2003-06-03 | Voith Sulzer Paper Technology North America, Inc. | Screening apparatus for fiber suspension |
-
2003
- 2003-03-27 AT AT0048503A patent/AT413390B/de not_active IP Right Cessation
-
2004
- 2004-03-04 CA CA002459601A patent/CA2459601A1/en not_active Abandoned
- 2004-03-16 NO NO20041101A patent/NO20041101L/no not_active Application Discontinuation
- 2004-03-17 AT AT04006304T patent/ATE440170T1/de not_active IP Right Cessation
- 2004-03-17 EP EP04006304A patent/EP1462567B1/de not_active Expired - Lifetime
- 2004-03-17 DE DE502004009907T patent/DE502004009907D1/de not_active Expired - Lifetime
- 2004-03-24 US US10/807,933 patent/US20040195169A1/en not_active Abandoned
- 2004-03-26 CN CNB200410031264XA patent/CN100422437C/zh not_active Expired - Fee Related
- 2004-03-26 BR BRPI0401090-6A patent/BRPI0401090B1/pt not_active IP Right Cessation
Patent Citations (9)
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 |
US4697982A (en) | 1986-03-13 | 1987-10-06 | Uniweld Inc. | Rotary pulp screen of the horizontal type having pulp stock feed at different axial positions on the screen |
EP0649940A1 (de) * | 1993-10-20 | 1995-04-26 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Verfahren und Vorrichtung zur Reinigung von Altpapierfaserbrei |
WO1998046821A1 (en) | 1997-04-14 | 1998-10-22 | Sunds Defibrator Industries Ab | Screening apparatus with dilution liquid supply means |
US6241102B1 (en) | 1997-12-19 | 2001-06-05 | Valmet Fibertech Ab | Screening device |
WO2000050690A1 (fr) * | 1999-02-26 | 2000-08-31 | E & M Lamort | Procede et moyens pour la filtration de la pate a papier |
EP1122358A2 (de) | 2000-02-03 | 2001-08-08 | Andritz AG | Sortierer zur Reinigung einer Faserstoffsuspension |
EP1124003A2 (de) | 2000-02-03 | 2001-08-16 | Andritz AG | Sortierer zur Reinigung einer Faserstoffsuspension |
EP1124002A2 (de) | 2000-02-03 | 2001-08-16 | Andritz AG | Sortierer zur Reinigung einer Faserstoffsuspension |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011076660A1 (de) * | 2009-12-25 | 2011-06-30 | Voith Patent Gmbh | Verfahren und siebvorrichtung zum sieben einer faserstoffsuspension |
WO2021043609A1 (de) * | 2019-09-04 | 2021-03-11 | Voith Patent Gmbh | Mehrstufige siebvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
CA2459601A1 (en) | 2004-09-27 |
US20040195169A1 (en) | 2004-10-07 |
EP1462567B1 (de) | 2009-08-19 |
NO20041101L (no) | 2004-09-28 |
CN100422437C (zh) | 2008-10-01 |
ATA4852003A (de) | 2005-07-15 |
CN1542219A (zh) | 2004-11-03 |
ATE440170T1 (de) | 2009-09-15 |
DE502004009907D1 (de) | 2009-10-01 |
BRPI0401090B1 (pt) | 2014-03-25 |
AT413390B (de) | 2006-02-15 |
BRPI0401090A (pt) | 2005-04-26 |
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