EP1827700B1 - Panier de centrifugeuse destine a une centrifugeuse a tamis - Google Patents

Panier de centrifugeuse destine a une centrifugeuse a tamis Download PDF

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Publication number
EP1827700B1
EP1827700B1 EP05776663.6A EP05776663A EP1827700B1 EP 1827700 B1 EP1827700 B1 EP 1827700B1 EP 05776663 A EP05776663 A EP 05776663A EP 1827700 B1 EP1827700 B1 EP 1827700B1
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EP
European Patent Office
Prior art keywords
sieve
centrifuge
basket
segments
sieve segments
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Application number
EP05776663.6A
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German (de)
English (en)
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EP1827700A1 (fr
Inventor
Horst Dietschreit
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.)
Siteg Siebtechnik GmbH
Siebtechnik GmbH
Original Assignee
Siteg Siebtechnik GmbH
Siebtechnik GmbH
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Publication of EP1827700A1 publication Critical patent/EP1827700A1/fr
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Publication of EP1827700B1 publication Critical patent/EP1827700B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/18—Rotary bowls formed or coated with sieving or filtering elements

Definitions

  • the invention relates to a centrifuge basket for a sieve centrifuge, in particular a Siebschnecken-, thrust or vibrating screen centrifuge, with an outer conical basket and basket insert in the basket sieve segments, wherein the sieve segments are fixed at its front edge by at least one clamping member under force on the support basket.
  • Such a centrifuge basket is from the DE 29 51 556 A1 known.
  • the invention relates to a method for mounting a centrifuge basket with a Siebsegmente receiving basket and a centrifuge with such a centrifuge basket.
  • centrifuge baskets for screening centrifuges of the aforementioned type There are centrifuge baskets for screening centrifuges of the aforementioned type known. Such sieve centrifuges are used for the separation of solids and liquids, for example in coal drying. Such Siebzentrifugen with a substantially conical shape are fed in the region of the rear edge, that is, at the smaller diameter of the centrifuge basket with the material to be dried. At the front edge, that is at the large diameter of the substantially conical centrifuge basket, the material to be dried is discharged.
  • the centrifuge baskets for such sieve centrifuges are essentially formed by an outer conical basket or holding basket and a the inner dimension of the carrier basket adapted, also conical sieve.
  • This sieve the shape of which corresponds to a conical surface section, is formed from a plurality of sieve segments, which are rolled from planar sieve preforms onto the radius of the holding basket and thereafter be welded together.
  • the sieve segments are deformed in the edge zones, so that both the inner and the outer contours of the sieve insert have severe shape inaccuracies, so that the welded sieve insert requires elaborate reworking.
  • an increased wear occurs during operation.
  • a further disadvantage is that with uneven wear replacement of individual sieve segments is impossible, but instead each of the entire sieve insert must be replaced.
  • a particular disadvantage here is that for the replacement of the sieve previously a disassembly of all projecting into the cone interior of the centrifuge basket components such as inlet pipe, distributor, screw, etc. is required.
  • the object of the invention is to provide a centrifuge basket for a sieve centrifuge, which has a lower wear and tear during operation and thus a higher creep with simplified and cheaper production and assembly.
  • Another object of the invention is to provide a simplified method for mounting a centrifuge basket.
  • a centrifuge basket for a sieve centrifuge in particular a Siebschnecken-, thrust or Schwingsiebzentrifuge, with an outer conical basket and basket insert sieve segments, the sieve segments at its front edge by at least one clamping member under adhesion to the basket are fixed, wherein the support basket has at its rear edge an annular groove into which the sieve segments are inserted in a form-fitting manner.
  • the support basket has at its rear edge, that is in the region of the smaller diameter, an annular groove into which the sieve segments can be inserted in a form-fitting manner.
  • centrifuge basket which allows to fix individual sieve segments on the support basket, without it It is necessary to weld the sieve segments to one another, which on the one hand simplifies production and assembly and on the other hand improves the creep behavior of the centrifuge basket during operation, since the omission of welding does not lead to dimensional inaccuracies of the sieve segments as a result of heat influence. It is also possible in the centrifuge basket according to the invention to replace individual sieve segments without having to replace the entire sieve insert in the centrifuge basket.
  • centrifuge basket according to the invention for a sieve centrifuge and the inventive method for mounting a centrifuge basket with a Siebsegmente receiving basket (holding basket), thus a centrifuge basket is created which has a simple construction and a simple structure and allows easy handling and installation.
  • the sieve segments on the sides adjacent to two adjacent sieve segments have no connections or attachments to the adjacent sieve segment, that is, the sieve segments are mutually free of connections. This makes it possible to replace individual sieve segments.
  • two adjacent sieve segments have a positive connection with one another, for example in the form of a sieve segment engages over the adjacent sieve segment in sections or over the entire length and additionally fixes it along a coaxial line.
  • the sieve segments at their front and / or rear edge at least one projection, in particular a plurality of individual spaced-apart projections which / which can be engaged by a clamping part / are.
  • one or more projections may be welded to the screen segments.
  • the overlapping projection on the sieve segments may be formed by a ring segment, wherein in particular the arc length of the ring segment corresponds to the arc length of the sieve segment edge, that is to say that this ring segment extends over the entire width along the arc line.
  • the fastened to the carrier basket clamping part is formed by a clamping ring or clamping ring segments.
  • the fastened to the basket clamping member may have a screw with the basket.
  • the sieve segment or the projection on the sieve segment and the / the clamping part / clamping parts on an identical inclination against the axis of the centrifuge basket and thus form a conical seat.
  • the clamping part has an inclination against the axis of the centrifuge basket, which corresponds to half the opening angle of the centrifuge basket.
  • the sieve segments are fixed by means of coaxially extending clamping rails under adhesion to the carrier basket, wherein the clamping rails in the region of the sides of two adjacent sieve segments on the support basket can be fastened.
  • the clamping rails and / or the clamping part are detachably connected by means of screwing with the support basket;
  • the sieve insert of the centrifuge basket is formed from four to twelve, preferably six segments.
  • the sieve segments are slotted sieve segments.
  • the sieve segments can be covered with a wear protection layer in the rear region, that is to say in the region of the smaller diameter at which the material to be dried is fed.
  • This wear protection layer may be a polyurethane layer.
  • the screen segments and / or the clamping parts may have a coating against wear.
  • the carrying basket or holding basket is carried self-supporting and / or manufactured in one piece by rolling or casting.
  • the basket On its peripheral surface, which corresponds to a conical surface portion, the basket can have openings.
  • the centrifuge basket for a sieve centrifuge Fig. 1 is formed by an outer basket or holding basket 11, with a conical shape and in this basket 11 inlaid sieve segments 12.
  • the sieve segments 12 At the front end, that is the larger diameter of the support basket 11, the sieve segments 12 by means of a sieve segments 12 cross clamping ring 13 under adhesion fixed to the basket.
  • the sieve segments 12 have on the sides, with which two adjacent sieve segments 12, 12b adjacent to the line 100, no connections or attachments with each other.
  • the clamping ring 13 is fixed by means of equidistantly arranged on the circumference of screws 14 on the support basket 11.
  • the Fig. 2 and 3 show the centrifuge basket Fig. 1 in further views. In the in Fig.
  • FIG. 4 shown section III-III after Fig. 2 is in the rear area, that is in the area of smaller diameter, the Centrifuge basket on the screen segments to the inside arranged wear protection layer 15 recognizable. In this area, the supply of the material to be dried takes place.
  • Fig. 4 represented is the detail IV after Fig. 3 , the design of the rear edge of the support basket 11 can be seen.
  • a flange 11a At the rear edge of the support basket 11 is disposed a flange 11a with a circumferentially circumferential cone-shaped groove 11b.
  • the circumferential recess in the flange 11 a forms in addition to the cone groove 11 b at the same time a contact shoulder 11 c.
  • Cone groove 11b and contact shoulder 11c serve the axial and radial fixation of the sieve segment 12 and at the same time the centering of the sieve segment 12 in the holding basket 11th
  • Fig. 5 shown is the detail V after Fig. 3 ,
  • the sieve segment 12 has at its front end to a terminal block 12 a, with which it rests on the support basket 11.
  • the screen segment 12 is fixed non-positively on the support basket 11.
  • the clamping ring 13 has a conical surface 13 a, which rests on the clamping bar 12 a of the sieve segment 12, wherein this conical surface 13 a of the clamping ring 13 have the same inclination as the clamping bar 12 a against the axis of the centrifuge basket, so that a circumferential contact surface in the form of a Tapered section results.
  • the clamping ring 13 is screwed by means of screws 14 to a arranged on the front edge of the support basket 11 11d flange.
  • Fig. 6 shows a plan view of a sieve segment 12 with a over the entire arc length of the front edge of the sieve segment 12 extending terminal block 12a, which is overlapped by the clamping ring 13. In the rear area, the sieve segment 12 is covered by a wear protection layer 15.
  • Fig. 7 shows an alternative embodiment of a sieve segment 22 with a wear protection layer 15 and a plurality of equidistantly arranged projections 22a.
  • Fig. 8 shows a side view of a projection element 22a for attachment to a sieve segment 22 according to Fig. 7.
  • Fig. 9 shows such a projection element 22a in a perspective view.
  • the projection element 22a has a chamfered surface 22b, which can be engaged by a clamping part or a clamping ring and by means of which it can be fixed under adhesion to the support basket.
  • the clamping ring 33 has for this purpose a cone-shaped bearing surface 33a, the inclination against the axis of the centrifuge basket of the inclination of the sieve segment 32 against the axis of the Centrifuge basket corresponds, so that a circumferential contact surface is formed in the form of a conical surface portion.
  • the clamping ring 33 is screwed by means of screws 34 against the arranged at the front end of the support basket 31 flange 31 d.
  • the screen segment 32 is a slot screen, the struts 32b are mounted on cross beams 32c.
  • Fig. 11 shows a further embodiment of the fixation of a screen segment 42 under adhesion to the support basket 41.
  • This is in the sieve segment 42 is a slotted screen, the struts 42b are arranged on cross members 42c.
  • a flat iron 46 is arranged in the region of the front end of the screening segment 42.
  • the sieve segment 42 rests with the flat iron 46 and the cross members 42 c on the support basket 41.
  • the fixation on the support basket by means of a, in the circumferential direction of the arc length of the screen segment 42 corresponding flat iron 46 cross clamping ring 43 which has a correspondingly shaped conical surface 43 a.
  • the clamping ring 43 is screwed by means of screws 44 against the arranged at the front end of the support basket 41 41d flange.
  • Fig. 12 shows a further embodiment of the centrifuge basket according to the invention in a perspective view with a carrying basket 51, in which Insert sieve segments 52.
  • the sieve segments 52 are fixed by means of coaxially extending clamping rails 56 under adhesion to the support basket 51.
  • the carrying basket 51 has a circumferential centering groove for receiving the rear end of the sieve segments 52.
  • Fig. 13 shows part XIII Fig. 12 ,
  • the sieve segments 52 are located inside in the carrying basket 51 and have on their sides to the adjacent sieve segment toward projections 52a, 52b, which are overlapped by the terminal block 58.
  • the terminal strips 56 are fixed by screws 54 on the support basket 51. The arrangement of the screw connections of the terminal strip 56 on the outside of the carrier basket 51, the terminal strips on the inside a smooth surface, so that premature wear is avoided.
  • Fig. 14 shows a sieve segment 52 in the plan view, with the arranged on the side adjacent to the adjacent screen segment projections 52a, 52b, which can be formed in the case of Spaltsiebsegmenten simply by correspondingly longer listed cross sections.

Landscapes

  • Centrifugal Separators (AREA)

Claims (21)

  1. Panier de centrifugeuse pour une centrifugeuse à tamis, notamment une centrifugeuse à vis sans fin, à poussoir ou à oscillation, avec un panier porteur conique externe (11, 31, 41, 51, 61) et des segments de tamis (12, 22, 32, 42, 52, 62) dans le panier porteur (11, 31, 41, 51, 61), les segments de tamis (12, 22, 32, 42, 52, 62) étant fixés au panier porteur (11, 31, 41, 51, 61) par au moins un élément de serrage (13, 33, 43, 53, 63) par complémentarité de forces sur leur bord avant, caractérisé en ce que le panier porteur (11, 31, 41, 51, 61) présente sur son bord arrière une rainure annulaire (11a) dans laquelle les segments de tamis (12, 22, 32, 42, 52, 62) sont insérés par complémentarité de formes.
  2. Panier de centrifugeuse selon la revendication 1, caractérisé en ce que le panier porteur (11, 31, 41, 51, 61) présente sur son bord arrière un épaulement d'appui (11 c) circonférentiel ou segmenté qui saisit les segments de tamis (12, 22, 32, 42, 52, 62) par l'arrière ou par en haut.
  3. Panier de centrifugeuse selon la revendication 1 ou 2, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62), sur les côtés (100) qui sont contigus de deux segments de tamis (12, 22, 32, 42, 52, 62) adjacents, ne comportent aucune liaison ou fixation avec le segment de tamis (12, 22, 32, 42, 52, 62) adjacent.
  4. Panier de centrifugeuse selon l'une des revendications 1 ou 2, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) présentent, sur les côtés qui sont contigus de deux segments de tamis (12, 22, 32, 42, 52, 62) adjacents, une liaison par complémentarité de formes avec le segment de tamis (12, 22, 32, 42, 52, 62) adjacent.
  5. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) présentent sur leur bord avant et/ou arrière au moins une projection (12a), notamment plusieurs projections (22a) disposées à intervalles, qu'un élément de serrage (13, 33, 43, 53, 63) peut saisir par en haut.
  6. Panier de centrifugeuse selon la revendication 5, caractérisé en ce que la projection saisissable est formée par un segment annulaire (12a), la longueur de l'arc du segment annulaire (12a) correspondant notamment à la longueur de l'arc du bord du segment de tamis.
  7. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que l'élément de serrage (13, 33, 43, 53, 63) fixable sur le panier porteur (11, 31, 41, 51, 61) est formé par une bague de serrage (13, 33, 43, 53, 63) ou des segments de bague de serrage.
  8. Panier de centrifugeuse selon l'une des revendications 5 à 7, caractérisé en ce que le segment de tamis (12, 22, 32, 42, 52, 62) ou la projection sur le segment de tamis (12, 22, 32, 42, 52, 62) et le ou les éléments de serrage (13, 33, 43, 53, 63) présentent une inclinaison identique par rapport à l'axe du panier de centrifugeuse et forment notamment une embase conique.
  9. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que l'élément de serrage (13, 33, 43, 53, 63) présente une inclinaison par rapport à l'axe du panier de centrifugeuse qui correspond à la moitié de l'angle d'ouverture du panier de centrifugeuse.
  10. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) sont fixés par complémentarité de forces au panier porteur (11, 31, 41, 51, 61) au moyen de glissières de serrage (56) coaxiales, les glissières de serrage (56) étant fixées au panier porteur (11, 31, 41, 51, 61) dans la zone des côtés de deux segments de tamis (12, 22, 32, 42, 52, 62) adjacents.
  11. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que les glissières de serrage (56) et/ou l'élément de serrage (13, 33, 43, 53, 63) sont reliés de manière amovible au moyen d'un vissage avec le panier porteur (11, 31, 41, 51, 61).
  12. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que le tamis est formé de 4 à 12, de préférence 6, segments de tamis (12, 22, 32, 42, 52, 62).
  13. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) sont des segments de tamis à fentes.
  14. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) sont recouverts dans la zone arrière par une couche anti-usure (15), notamment une couche de polyuréthane.
  15. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) et/ou le ou les éléments de serrage (13, 33, 43, 53, 63) présentent un revêtement contre l'usure.
  16. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que le panier porteur (11, 31, 41, 51, 61) est autoportant.
  17. Panier de centrifugeuse selon l'une des revendications précédentes, caractérisé en ce que le panier porteur (11, 31, 41, 51, 61) présente des ouvertures sur sa surface circonférentielle.
  18. Centrifugeuse, notamment centrifugeuse à vis sans fin, à poussoir ou à oscillation, caractérisée par un panier de centrifugeuse selon l'une des revendications précédentes.
  19. Procédé de montage d'un panier de centrifugeuse selon l'une des revendications 1 à 18 avec un panier porteur (11, 31, 41, 51, 61) abritant des segments de tamis (12, 22, 32, 42, 52, 62), caractérisé par les étapes suivantes :
    • insertion des segments de tamis (12, 22, 32, 42, 52, 62) dans le panier porteur (11, 31, 41, 51, 61),
    • positionnement des segments de tamis (12, 22, 32, 42, 52, 62) avec un outil auxiliaire, notamment au moyen d'une roue de serrage insérable dont la périphérie externe est adjacente aux segments de tamis (12, 22, 32, 42, 52, 62),
    • fixation des segments de tamis (12, 22, 32, 42, 52, 62) au moyen d'au moins un ou plusieurs éléments de serrage (13, 33, 43, 53, 63) et/ou glissières de serrage (56) par complémentarité de forces au panier porteur (11, 31, 41, 51, 61).
  20. Procédé selon la revendication 19, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62) sont façonnés à partir d'éléments de préfaçonnage de tamis plans sur le rayon du panier porteur (11, 31, 41, 51, 61).
  21. Procédé selon la revendication 19 ou 20, caractérisé en ce que les segments de tamis (12, 22, 32, 42, 52, 62), notamment dans la zone arrière, sont pourvus d'une couche anti-usure (15), notamment une couche de polyuréthane.
EP05776663.6A 2004-11-30 2005-08-27 Panier de centrifugeuse destine a une centrifugeuse a tamis Active EP1827700B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004057859A DE102004057859A1 (de) 2004-11-30 2004-11-30 Zentrifugenkorb für eine Siebzentrifuge
PCT/EP2005/009261 WO2006058567A1 (fr) 2004-11-30 2005-08-27 Panier de centrifugeuse destine a une centrifugeuse a tamis

Publications (2)

Publication Number Publication Date
EP1827700A1 EP1827700A1 (fr) 2007-09-05
EP1827700B1 true EP1827700B1 (fr) 2013-12-18

Family

ID=35056857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05776663.6A Active EP1827700B1 (fr) 2004-11-30 2005-08-27 Panier de centrifugeuse destine a une centrifugeuse a tamis

Country Status (6)

Country Link
EP (1) EP1827700B1 (fr)
CN (1) CN100584468C (fr)
AU (1) AU2005312185B2 (fr)
DE (1) DE102004057859A1 (fr)
WO (1) WO2006058567A1 (fr)
ZA (1) ZA200704061B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584013A1 (fr) 2018-06-19 2019-12-25 Siebtechnik GmbH Segment de tamisage pour une essoreuse à panier-tamis

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CN101171390B (zh) 2005-05-09 2011-04-13 纺织过滤材料股份有限公司 筛网筐及装配筛网筐的方法
DE102006051236A1 (de) 2006-10-31 2008-05-08 Siebtechnik Gmbh Tragkorb einer Siebzentrifuge
WO2009062287A1 (fr) 2007-11-14 2009-05-22 Filtration Fibrewall Inc. Panier épurateur
CA2856025C (fr) * 2011-11-28 2017-05-16 Alfa Laval Corporate Ab Separateur centrifuge ayant des proprietes anti-encrassement
CN102989594A (zh) * 2012-11-26 2013-03-27 山东景津环保设备有限公司 一种卧式振动离心机骨架组合体筛篮
DE202013000722U1 (de) * 2013-01-24 2013-02-27 Andreas Klotz Vorrichtung zur Bearbeitung von Kleinteilen
DE102014001999A1 (de) 2014-02-17 2015-08-20 Siebtechnik Gmbh Zentrifugenkorb für eine Siebzentrifuge

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584013A1 (fr) 2018-06-19 2019-12-25 Siebtechnik GmbH Segment de tamisage pour une essoreuse à panier-tamis
WO2019242877A1 (fr) * 2018-06-19 2019-12-26 Siebtechnik Gmbh Segment de tamis pour centrifugeuse à tamis

Also Published As

Publication number Publication date
DE102004057859A1 (de) 2006-06-01
ZA200704061B (en) 2008-08-27
EP1827700A1 (fr) 2007-09-05
WO2006058567A1 (fr) 2006-06-08
CN100584468C (zh) 2010-01-27
CN1988960A (zh) 2007-06-27
AU2005312185B2 (en) 2010-11-18
AU2005312185A1 (en) 2006-06-08

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