EP1122358A2 - Trieuse pour la purification d'une suspension de fibres - Google Patents

Trieuse pour la purification d'une suspension de fibres Download PDF

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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
Application number
EP01101559A
Other languages
German (de)
English (en)
Other versions
EP1122358B1 (fr
EP1122358A3 (fr
EP1122358B2 (fr
Inventor
Helmuth 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=3653490&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1122358(A2) "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
Priority to AT01101559T priority Critical patent/ATE299965T1/de
Publication of EP1122358A2 publication Critical patent/EP1122358A2/fr
Publication of EP1122358A3 publication Critical patent/EP1122358A3/fr
Publication of EP1122358B1 publication Critical patent/EP1122358B1/fr
Application granted granted Critical
Publication of EP1122358B2 publication Critical patent/EP1122358B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 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.

Landscapes

  • 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)
EP01101559A 2000-02-03 2001-01-25 Trieuse pour la purification d'une suspension de fibres Expired - Lifetime EP1122358B2 (fr)

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 (fr) 2001-08-08
EP1122358A3 EP1122358A3 (fr) 2001-11-21
EP1122358B1 EP1122358B1 (fr) 2005-07-20
EP1122358B2 EP1122358B2 (fr) 2008-01-02

Family

ID=3653490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101559A Expired - Lifetime EP1122358B2 (fr) 2000-02-03 2001-01-25 Trieuse pour la purification d'une suspension de fibres

Country Status (8)

Country Link
EP (1) EP1122358B2 (fr)
CN (1) CN1180160C (fr)
AT (2) AT408771B (fr)
BR (1) BR0100352A (fr)
CA (1) CA2332679A1 (fr)
DE (1) DE50106745D1 (fr)
ES (1) ES2246260T5 (fr)
MX (1) MXPA01001293A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
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 (fr) 2003-03-27 2004-09-29 Andritz AG Classeur pour la purification d'une suspension fibreuse
DE102004047948B4 (de) * 2003-10-15 2007-10-11 Andritz Ag Sortierer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (fr) * 1991-10-31 1993-05-19 J.M. Voith GmbH Appareil d'épuration
WO1995006159A1 (fr) * 1993-08-20 1995-03-02 Valmet Corporation Procede et epurateur sous pression pour l'epuration d'une suspension de fibres de pate a papier
EP0795641A1 (fr) * 1996-03-11 1997-09-17 Aikawa Iron Works Co., Ltd. Tamis pour pâte à papier
WO1997041296A1 (fr) * 1996-05-02 1997-11-06 Alfa Laval Ab Dispositif pour separer les contaminants de pates constituees par des fibres en suspension
WO1999045193A1 (fr) * 1998-03-06 1999-09-10 Valmet Fibertech Aktiebolag Dispositif de tamisage comprenant deux compartiments de tamisage destines a separer les suspensions fibreuses
EP0955406A2 (fr) * 1994-07-15 1999-11-10 Ahlstrom Machinery Corporation Procédé et dispositif pour l'épuration d'une suspension fibreuse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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.

Patent Citations (8)

* Cited by examiner, † Cited by third party
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 (fr) * 1991-10-31 1993-05-19 J.M. Voith GmbH Appareil d'épuration
WO1995006159A1 (fr) * 1993-08-20 1995-03-02 Valmet Corporation Procede et epurateur sous pression pour l'epuration d'une suspension de fibres de pate a papier
EP0955406A2 (fr) * 1994-07-15 1999-11-10 Ahlstrom Machinery Corporation Procédé et dispositif pour l'épuration d'une suspension fibreuse
EP0795641A1 (fr) * 1996-03-11 1997-09-17 Aikawa Iron Works Co., Ltd. Tamis pour pâte à papier
WO1997041296A1 (fr) * 1996-05-02 1997-11-06 Alfa Laval Ab Dispositif pour separer les contaminants de pates constituees par des fibres en suspension
WO1999045193A1 (fr) * 1998-03-06 1999-09-10 Valmet Fibertech Aktiebolag Dispositif de tamisage comprenant deux compartiments de tamisage destines a separer les suspensions fibreuses

Cited By (3)

* Cited by examiner, † Cited by third party
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 (fr) 2003-03-27 2004-09-29 Andritz AG Classeur pour la purification d'une suspension fibreuse
DE102004047948B4 (de) * 2003-10-15 2007-10-11 Andritz Ag Sortierer

Also Published As

Publication number Publication date
ES2246260T3 (es) 2006-02-16
MXPA01001293A (es) 2005-08-16
AT408771B (de) 2002-03-25
EP1122358B1 (fr) 2005-07-20
CN1180160C (zh) 2004-12-15
ATE299965T1 (de) 2005-08-15
ATA1662000A (de) 2001-07-15
BR0100352A (pt) 2001-10-02
EP1122358A3 (fr) 2001-11-21
DE50106745D1 (de) 2005-08-25
CN1320741A (zh) 2001-11-07
EP1122358B2 (fr) 2008-01-02
ES2246260T5 (es) 2008-05-01
CA2332679A1 (fr) 2001-08-03

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