EP1122358A2 - Sortierer zur Reinigung einer Faserstoffsuspension - Google Patents
Sortierer zur Reinigung einer Faserstoffsuspension Download PDFInfo
- Publication number
- EP1122358A2 EP1122358A2 EP01101559A EP01101559A EP1122358A2 EP 1122358 A2 EP1122358 A2 EP 1122358A2 EP 01101559 A EP01101559 A EP 01101559A EP 01101559 A EP01101559 A EP 01101559A EP 1122358 A2 EP1122358 A2 EP 1122358A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- installation
- sorter
- cone
- sorting
- 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
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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 Fibrous suspension.
- Sorters are machines used for cleaning in the paper industry a stock suspension consisting of water, fibrous materials and Dirt particles exist. In this case, an inflow flow over a Screening device performed, the acceptance stream consisting of water and fibers flowing through the screen. A partial stream, called Reject flow, consisting of water, fibers and contaminants, is in the generally at the end opposite the feed stream deducted.
- the sorters are thus separated into Liquid present solid particles.
- the Filtration separated the liquid from the solid.
- Such sorter is rotationally symmetrical and consists of a Housing with a tangentially arranged inlet, a cylindrical one Sieve basket, usually provided with holes or vertical slots and a rotating rotor.
- the job of the rotor is to Keep the sieve slots free, which is due to the sieve surface being close to rotating wing is reached.
- the acceptance stream is in one so-called acceptance room, which is often conical, collected and deducted radially at one point.
- the reject stream is general on the opposite side of the strainer basket in one mostly ring-shaped reject space and tangential from it deducted.
- Such a sorter is e.g. known from US 4,268,381.
- the disadvantage of these sorting machines is that reject space of relatively large size increases the risk of constipation low flow velocities occur. Another occurs uneven flow to the strainer and uneven Flow conditions in the acceptance room, especially in the area of Acceptance of waste.
- the aim of the invention is therefore to improve the To create flow conditions in the sorter to create a Reduction of the energy used with increased production and To achieve dirt separation.
- the invention is therefore characterized in that in the inlet area additional sieve basket is provided for pre-sorting. This allows in better separation can be achieved on a machine.
- An advantageous development of the invention is characterized in that that the additional screen basket rotates with the rotor, the additional strainer basket can also be designed to be stationary.
- a favorable embodiment of the invention is characterized in that that rotating blades are provided in the pre-sorting area, the Wings can be arranged in the inlet stream or in the acceptance stream.
- a favorable further development of the invention is characterized in that that in the inlet area between the pipe socket and the end of the rotor stationary installation is provided, which is rotationally symmetrical can. This will significantly improve the Flow conditions and subsequently a reduction in used energy reached.
- An advantageous development of the invention is characterized in that that the installation of a cone, a truncated cone, hemisphere, spherical segment, Spherical layer, paraboloid or double-shell hyperboloid.
- a favorable embodiment of the invention is characterized in that when installed as a cone or truncated cone, the cone angle ⁇ is between 10 ° and 60 °, the axis of the inlet connection being parallel can be arranged to the cone jacket.
- a favorable alternative embodiment of the invention is thereby characterized in that the installation is a spiral body, the Slope of the spiral can be chosen such that the Flow velocity in the inlet area over the entire Sorting basket width is constant.
- An advantageous development of the invention is characterized in that that the installation is arranged centrally.
- An advantageous embodiment of the invention is characterized in that that the acceptance room is double conical.
- An advantageous development of the invention is characterized in that that the sorter is designed as a double machine.
- a favorable further development of the invention is characterized in that that the inlet is 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 flowed in and flowed through, the drive side facing away rotor part.
- a favorable embodiment of the invention is characterized in that that the inlet is in the middle from the side.
- An advantageous development of the invention is characterized in that that the acceptance outlet is provided twice.
- An advantageous embodiment of the invention is characterized in that that the sorter is arranged horizontally.
- a favorable further development of the invention is characterized in that that for presorting a screen basket rotating with the rotor in Inflow area is provided, with rotating also in the pre-sorting area Wings can be provided.
- a favorable further development of the invention is characterized in that that several blades are distributed over the height and / or circumference of the rotor are provided.
- FIG. 1 an embodiment of the invention with an area for integrated pre-sorting
- Fig. 2 another Embodiment of the invention
- Fig. 3 shows an alternative embodiment of the Invention
- Fig. 4 shows an embodiment of a double machine
- Fig. 5 a Diagram of the dependence of the specific energy Sieve flow
- Fig. 6 is a diagram of the dirt point reduction represents the sieve flow.
- Fig. 1 now shows the upper part of a sorter 1, which is arranged vertically with integrated pre-sorting.
- the sorter 1 over the pulp suspension fed to the inlet pipe 2.
- a pre-sorting area 10 is provided in the upper area of the sorter 1 which the suspension passes through a sieve 11.
- the flow of Fibrous material suspension during the pre-sorting is thus carried out from the outside Inside. This enables specific heavy parts and large areas Impurities resulting from soiled or highly soiled Fibers result, can be removed well.
- a rotor 12 runs along with the rotor 4 an extension 13 is connected.
- the rotor also run inside the sieve. Leave the heavy parts the pre-sorting area by a nozzle 14.
- the rotor 12 can Pre-sorting area 10 both in the feed stream (as shown) or in Acceptance stream, which is then another fine sorting in the lower area of the sorter 1 is fed, run. If the rotor 12 runs in the feed stream, so the strong cleaning blades of the rotor 12 abrasive heavy parts are held on the surface of the Open sieve 11 and damage it.
- the specifically heavy parts are centrifuged outwards.
- a longer service life of the screen baskets in the Pre-sorting area achieved, on the other hand, by means of the targeted barrier Pre-sorting basket sustainable storage of heavy parts in the centrifugal re-sorting area reached.
- the separate discharge of coarse and smaller impurities leads to increased performance (Throughput and increase in effectiveness) compared to conventional Sorting machines.
- This can also be used for high production outputs Variant with a double cone rotor.
- the illustrated Execution also enables better, easier sealing as well better accessibility for cleaning.
- Fig. 2 shows a sorter 1, the one through an inlet port 2 Fibrous suspension is fed for cleaning.
- Inlet 3 In the area of Inlet 3 is provided, which is shown here as a truncated cone is.
- the "tip" of the truncated cone points in the direction of the rotor 4.
- the flank angle ⁇ of the truncated cone is between 10 ° and 60 °.
- the fiber suspension enters the room between rotor 4 and sieve 5 and is passed through the sieve into the Accepted room 6.
- the housing of the acceptance room is Double conical design, i.e. the housing tapers approximately from the Top edge of the acceptance outlet 7 conical towards the reject space, whereby the angle of the acceptance room for a constant flow rate assuming a uniform flow through the sieve is laid out.
- the rotor 4 of the sorter 1 is for a uniform flow against the sieve, which causes a low thickening behavior above the screen height, designed. It has the shape of a parabola, so that the axial Flow velocity within the strainer basket when assumed uniform outflow through the sieve remains constant. Alternatively the shape of the rotor can also be approximated using a cone shape.
- the reject space designed such that flow velocities greater than 2.5 m / sec with or without additional input of stirring energy by the rotor available. This practically prevents constipation.
- Fig. 3 shows an analog arrangement of a sorter 1, here the Inlet nozzle 2 is arranged so that the suspension parallel to the wall of the truncated cone 3 is supplied. This can reduce energy loss, which is otherwise present when the flow is diverted.
- Fig. 4 shows the execution of a top machine, as for high Production performance is carried out.
- the rotor is e.g. as Double parabolic rotor 4, 4 'or double cone rotor.
- the Reject deduction 8, 8 'and the screen basket 5, 5' is in duplicate intended.
- the acceptance room 6, 6 ' is double-conical, i.e. again that the housing is approximately from the top of the Acceptance outlet tapers conically towards the reject space.
- stock suspension is in turn fed through the feed pipe 2 and guided axially through the rotor in the illustrated embodiment.
- the drive-side rotor part 4 is in the Height L1 equal to or greater than that of the drive side facing rotor part 4 'with the height L2.
- the suspension occurs in middle area through openings 9 from the flow-through rotor part 4 ' and is distributed here in both directions. It occurs like one simple sorter through the sieve basket 5, 5 'into the acceptance room 6, 6 ', which is also double-conical here.
- the reject flows both up and down and is here in one Rejektraum 8, 8 'removed from the machine.
- the inlet can also take place centrally from one side.
- the acceptance outlet can either be double, i.e. above (7 ') or below (7) or simply be attached in the middle.
- the sorting machine can also be carried out in a lying position.
- Fig. 5 shows the diagram of the energy requirement over the Sieve flow, here a curve for previous sorters and a Curve for the sorter according to the invention with a tapered installation is shown in the inlet area.
- Fig. 6 is the dirt spot reduction over the sieve flow shown. It can be seen here that through a conical installation in Inlet space also the dirt point reduction can be increased significantly could, while lowering the specific energy requirement.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Combined Means For Separation Of Solids (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Centrifugal Separators (AREA)
Abstract
Description
Claims (22)
- Sortierer zur Reinigung einer Faserstoffsuspension, dadurch gekennzeichnet, daß im Zulaufbereich ein zusätzlicher Siebkorb (11) zur Vorsortierung vorgesehen ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der zusätzliche Siebkorb (11) mit dem Rotor (12) mitrotiert.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der zusätzliche Siebkorb (11) feststehend ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß im Vorsortierbereich (10) rotorierende Flügel vorgesehen sind.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Flügel im Zulaufstrom angeordnet sind.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Flügel im Akzeptstrom angeordnet sind.
- Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß im Zulaufbereich zwischen Rohrstutzen (2) und dem freien Ende des Rotors (4) ein stationärer Einbau (3) vorgesehen ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Einbau (3) rotationssymmetrisch ist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der Einbau (3) ein Kegel, Kegelstumpf, Halbkugel, Kugelsegment, Kugelschicht, Paraboloid oder zweischaliges Hyperboloid ist.
- Vorrichtung nach Anspruch 8, mit einem Einbau (3) als Kegel oder Kegelstumpf, dadurch gekennzeichnet, daß der Kegelwinkel α zwischen 10° und 60° beträgt.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Achse des Zulaufstutzens (2) parallel zum Kegelmantel angeordnet ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Einbau ein spiralförmiger Körper ist.
- Vorrichtung nach Anspruch 11, 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 7 bis 13, dadurch gekennzeichnet, daß der Einbau (3) zentrisch angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Akzeptraum (6) doppelt konisch ausgestaltet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß der Sortierer (1) als Doppelmaschine ausgebildet ist.
- Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß der Zulauf axial durch den Rotor (4) erfolgt.
- Vorrichtung nach Anspruch 17, 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 18, dadurch gekennezeichnet, daß der Zulauf mittig von der Seite erfolgt.
- Vorrichtung nach einem der Ansprüche 16 bis 19, dadurch gekennzeichnet, daß der Akzeptauslaß (7, 7') zweifach vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß der Sortierer (1) liegend angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 21, dadurch gekennzeichnet, daß am Rotor (4, 4') mehrere Flügel über Höhe und/oder Umfang verteilt vorgesehen sind.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01101559T ATE299965T1 (de) | 2000-02-03 | 2001-01-25 | Sortierer zur reinigung einer faserstoffsuspension |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT166002000 | 2000-02-03 | ||
AT0016600A AT408771B (de) | 2000-02-03 | 2000-02-03 | Sortierer zur reinigung einer faserstoffsuspension |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1122358A2 true EP1122358A2 (de) | 2001-08-08 |
EP1122358A3 EP1122358A3 (de) | 2001-11-21 |
EP1122358B1 EP1122358B1 (de) | 2005-07-20 |
EP1122358B2 EP1122358B2 (de) | 2008-01-02 |
Family
ID=3653490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01101559A Expired - Lifetime EP1122358B2 (de) | 2000-02-03 | 2001-01-25 | Sortierer zur Reinigung einer Faserstoffsuspension |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1122358B2 (de) |
CN (1) | CN1180160C (de) |
AT (2) | AT408771B (de) |
BR (1) | BR0100352A (de) |
CA (1) | CA2332679A1 (de) |
DE (1) | DE50106745D1 (de) |
ES (1) | ES2246260T5 (de) |
MX (1) | MXPA01001293A (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10115298A1 (de) * | 2001-03-28 | 2002-10-17 | Voith Paper Patent Gmbh | Drucksortierer zum Entfernen von Störstoffen aus einer störstoffhaltigen Papierfasersuspension |
EP1462567A1 (de) | 2003-03-27 | 2004-09-29 | Andritz AG | Sortierer zur Reinigung einer Fasersuspension |
DE102004047948B4 (de) * | 2003-10-15 | 2007-10-11 | Andritz Ag | Sortierer |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110787517B (zh) * | 2019-11-28 | 2020-10-30 | 广东吉康环境系统科技有限公司 | 一种污泥干化预处理装置 |
CN113648693B (zh) * | 2021-07-14 | 2022-12-27 | 安徽金星钛白(集团)有限公司 | 偏钛酸贮存槽下料防堵塞用初级过滤器 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3053391A (en) * | 1959-08-17 | 1962-09-11 | Bird Machine Co | Apparatus for screening |
US4302327A (en) * | 1980-03-17 | 1981-11-24 | The Black Clawson Company | Center flow screening apparatus |
EP0541979A1 (de) * | 1991-10-31 | 1993-05-19 | J.M. Voith GmbH | Sortierer |
WO1995006159A1 (en) * | 1993-08-20 | 1995-03-02 | Valmet Corporation | Method and pressure screen for screening fibre suspension |
EP0795641A1 (de) * | 1996-03-11 | 1997-09-17 | Aikawa Iron Works Co., Ltd. | Sieb für Papierfaserstoff |
WO1997041296A1 (en) * | 1996-05-02 | 1997-11-06 | Alfa Laval Ab | Device for separating contaminants from fibre pulp suspensions |
WO1999045193A1 (en) * | 1998-03-06 | 1999-09-10 | Valmet Fibertech Aktiebolag | Screen device comprising two screen chambers for separating fibre suspensions |
EP0955406A2 (de) * | 1994-07-15 | 1999-11-10 | Ahlstrom Machinery Corporation | Verfahren und Vorrichtung zum Sortieren von faserstoffhaltiger Suspension |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3703831A1 (de) * | 1987-02-07 | 1988-09-08 | Voith Gmbh J M | Spuckstoffsortierer |
SE464640B (sv) * | 1988-06-16 | 1991-05-27 | Kamyr Ab | Apparat foer silning av en suspension av en fiberhaltig cellulosamassa |
FI902968A (fi) * | 1990-06-13 | 1991-12-14 | Sunds Defibrator Jylha Oy | Siktenhet foer sortering av massor, saerskilt pappersmassa. |
-
2000
- 2000-02-03 AT AT0016600A patent/AT408771B/de not_active IP Right Cessation
-
2001
- 2001-01-25 DE DE50106745T patent/DE50106745D1/de not_active Expired - Lifetime
- 2001-01-25 AT AT01101559T patent/ATE299965T1/de not_active IP Right Cessation
- 2001-01-25 EP EP01101559A patent/EP1122358B2/de not_active Expired - Lifetime
- 2001-01-25 ES ES01101559T patent/ES2246260T5/es not_active Expired - Lifetime
- 2001-01-30 CA CA002332679A patent/CA2332679A1/en not_active Abandoned
- 2001-02-02 MX MXPA01001293A patent/MXPA01001293A/es active IP Right Grant
- 2001-02-02 CN CNB011119365A patent/CN1180160C/zh not_active Expired - Lifetime
- 2001-02-05 BR BR0100352-6A patent/BR0100352A/pt not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3053391A (en) * | 1959-08-17 | 1962-09-11 | Bird Machine Co | Apparatus for screening |
US4302327A (en) * | 1980-03-17 | 1981-11-24 | The Black Clawson Company | Center flow screening apparatus |
EP0541979A1 (de) * | 1991-10-31 | 1993-05-19 | J.M. Voith GmbH | Sortierer |
WO1995006159A1 (en) * | 1993-08-20 | 1995-03-02 | Valmet Corporation | Method and pressure screen for screening fibre suspension |
EP0955406A2 (de) * | 1994-07-15 | 1999-11-10 | Ahlstrom Machinery Corporation | Verfahren und Vorrichtung zum Sortieren von faserstoffhaltiger Suspension |
EP0795641A1 (de) * | 1996-03-11 | 1997-09-17 | Aikawa Iron Works Co., Ltd. | Sieb für Papierfaserstoff |
WO1997041296A1 (en) * | 1996-05-02 | 1997-11-06 | Alfa Laval Ab | Device for separating contaminants from fibre pulp suspensions |
WO1999045193A1 (en) * | 1998-03-06 | 1999-09-10 | Valmet Fibertech Aktiebolag | Screen device comprising two screen chambers for separating fibre suspensions |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10115298A1 (de) * | 2001-03-28 | 2002-10-17 | Voith Paper Patent Gmbh | Drucksortierer zum Entfernen von Störstoffen aus einer störstoffhaltigen Papierfasersuspension |
EP1462567A1 (de) | 2003-03-27 | 2004-09-29 | Andritz AG | Sortierer zur Reinigung einer Fasersuspension |
DE102004047948B4 (de) * | 2003-10-15 | 2007-10-11 | Andritz Ag | Sortierer |
Also Published As
Publication number | Publication date |
---|---|
EP1122358B2 (de) | 2008-01-02 |
ATE299965T1 (de) | 2005-08-15 |
CN1180160C (zh) | 2004-12-15 |
EP1122358B1 (de) | 2005-07-20 |
ATA1662000A (de) | 2001-07-15 |
DE50106745D1 (de) | 2005-08-25 |
BR0100352A (pt) | 2001-10-02 |
CN1320741A (zh) | 2001-11-07 |
MXPA01001293A (es) | 2005-08-16 |
AT408771B (de) | 2002-03-25 |
CA2332679A1 (en) | 2001-08-03 |
EP1122358A3 (de) | 2001-11-21 |
ES2246260T5 (es) | 2008-05-01 |
ES2246260T3 (es) | 2006-02-16 |
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