EP1827700A1 - Panier de centrifugeuse destine a une centrifugeuse a tamis - Google Patents

Panier de centrifugeuse destine a une centrifugeuse a tamis

Info

Publication number
EP1827700A1
EP1827700A1 EP05776663A EP05776663A EP1827700A1 EP 1827700 A1 EP1827700 A1 EP 1827700A1 EP 05776663 A EP05776663 A EP 05776663A EP 05776663 A EP05776663 A EP 05776663A EP 1827700 A1 EP1827700 A1 EP 1827700A1
Authority
EP
European Patent Office
Prior art keywords
sieve
basket
centrifuge
segments
sieve segments
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
EP05776663A
Other languages
German (de)
English (en)
Other versions
EP1827700B1 (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
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
Application filed by Siteg Siebtechnik GmbH, Siebtechnik GmbH filed Critical Siteg Siebtechnik GmbH
Publication of EP1827700A1 publication Critical patent/EP1827700A1/fr
Application granted granted Critical
Publication of EP1827700B1 publication Critical patent/EP1827700B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 sieve screw, push or vibrating sieve centrifuge, with an outer conical carrying basket and sieve segments lying in the carrying basket.
  • the invention relates to a method for assembling a centrifuge basket with a carrying basket receiving sieve segments.
  • Centrifuge baskets for screen centrifuges of the aforementioned type are known.
  • Sieve centrifuges of this type are used to separate solids and liquids, for example in coal drying.
  • Screen centrifuges of this type with an essentially conical shape are loaded with the material to be dried in the region of the rear edge, that is to say on the smaller diameter of the centrifuge basket.
  • the material to be dried is removed at the front edge, that is to say the large diameter of the essentially conical centrifuge basket.
  • the centrifuge baskets for sieve centrifuges of this type are essentially formed by an outer conical carrying basket or holding basket and a likewise conical sieve which is adapted to the internal dimensions of the carrying basket.
  • This sieve the shape of which corresponds to a conical jacket section, is formed from a plurality of sieve segments which are rolled from flat preform parts onto the radius of the holding basket and then thereafter be welded together.
  • the heat caused by the welding leads to a deformation of the sieve segments in the edge zones, so that both the inner and the outer contour of the sieve insert have strong inaccuracies in shape, so that the welded sieve insert requires extensive post-processing.
  • As a result of the shape deviations of the sieve insert in the area of the weldings of the sieve segments increased wear occurs during operation.
  • the object of the invention is to provide a centrifuge basket for a sieve centrifuge which, with simplified and inexpensive manufacture and assembly, has less wear during operation and thus a longer service life.
  • Another object of the invention is to provide a simplified method for assembling a centrifuge basket.
  • the object is achieved in that in a centrifuge basket for a sieve centrifuge, in particular a sieve screw, push or vibrating sieve centrifuge, with an outer conical carrier basket and sieve segments lying in the carrier basket, the sieve segments at their front and / or rear edge by at least one clamping part can be fixed to the carrier cage with frictional connection
  • a centrifuge basket is created, which allows individual sieve segments to be fixed to the carrying basket without the need to weld the sieve segments to one another, which on the one hand simplifies manufacture and assembly and on the other hand improves the creep behavior of the centrifuge basket in operation because it is improved by the absence of welding does not lead to inaccurate shape of the sieve segments due to the influence of heat.
  • the centrifuge basket according to the invention it is also possible to replace individual sieve segments without having to replace the entire sieve insert in the centrifuge basket.
  • the further object of the invention is achieved according to the invention by a method for assembling a centrifuge basket with a carrying basket or holding basket receiving sieve segments with the following steps:
  • the carrier cage has a circumferential or segmented contact shoulder on its rear edge, that is to say in the region of the smaller diameter, which engages behind and / or overlaps the sieve segments, in particular in the form that the carrier basket has an annular on its rear edge Has groove in which the sieve segments can be inserted in a form-fitting manner.
  • the sieve segments on the sides with which two adjacent sieve segments adjoin preferably have no connections or fastenings with the adjacent sieve segment, that is to say that the sieve segments are free of connections to one another. This makes it possible to replace individual sieve segments.
  • two adjacent sieve segments may have a positive connection with one another, for example in the form that a sieve segment overlaps the adjacent sieve segment in sections or over the entire length and is additionally fixed along a coaxial line.
  • the sieve segments have at their front and / or rear edge at least one projection, in particular a plurality of individual projections arranged at intervals, which can be overlapped by a clamping part.
  • one or more projections can be welded to the screen segments.
  • the overlapping projection on the screen segments can be formed by a ring segment, the arc length of the ring segment in particular corresponding to the arc length of the screen segment edge, that is to say that this ring segment extends over the entire width along the arc line.
  • the clamping part which can be fastened to the carrier basket is preferably formed by a clamping ring or clamping ring segments.
  • the clamping part which can be fastened to the carrier basket can have a screw connection to the carrier basket.
  • this can be fastened to the carrier basket by means of equidistantly arranged screws.
  • the conical clamping surface of such a clamping ring fixes the sieve segments against the holding basket due to the inclination of the clamping surface against the axis of the centrifuge basket both in the axial direction and in the circumferential direction.
  • the sieve segment or the projection on the sieve segment and the clamping part (s) preferably have an identical inclination against the axis of the centrifuge basket and thus form a conical seat. This results in a contact surface in the form of a conical jacket section with a very high stability due to the contact surface created.
  • the clamping part has an inclination towards the axis of the centrifuge basket which corresponds to half the opening angle of the centrifuge basket.
  • a centrifuge basket for a screen centrifuge for a screen centrifuge, in particular a screen screw, push or vibrating screen centrifuge, with an outer conical carrying basket and in Sieve segments lying in the carrier basket, the sieve segments being able to be fixed to the carrier basket by means of coaxial clamping rails, the clamp rails being fastened to the carrier basket in the region of the sides of two adjacent sieve segments.
  • clamping rails and / or the clamping part can preferably be detachably connected to the carrying basket by means of screwing.
  • coaxial clamping rails achieves the same advantages as when the sieve segments are fixed to their front and / or rear edge on the carrier cage.
  • the sieve insert of the centrifuge basket is preferably formed from four to twelve, preferably from 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 in which the material to be dried is fed.
  • This wear protection layer can be a polyurethane layer.
  • the sieve segments and / or the clamping parts can also have a coating against wear.
  • the carrying basket or holding basket is preferably designed to be self-supporting and / or manufactured in one piece by rolling or casting.
  • the carrier cage can have openings on its circumferential surface, which corresponds to a conical jacket section.
  • FIG. 1 is a perspective view of a centrifuge basket for a sieve centrifuge with an outer conical carrying basket and sieve segments lying in the carrying basket,
  • FIG. 8 is a side view of a projection element for mounting on a sieve segment according to FIG. 7,
  • FIG. 9 is a perspective view of a projection element for mounting on a sieve segment according to FIG. 7,
  • FIG. 1 is formed by an outer carrying basket or holding basket 11 with a conical shape and sieve segments 12 lying in this carrying basket 11.
  • the sieve segments 12 are by means of one of the sieve segments 12 overlapping clamping ring 13 fixed to the support cage.
  • the sieve segments 12 have no connections or fastenings to one another on the sides with which two adjacent sieve segments 12, 12b adjoin along the line 100.
  • the clamping ring 13 is fastened to the support basket 11 by means of screws 14 arranged equidistantly over the circumference.
  • 2 and 3 show the centrifuge basket according to FIG. 1 in further views. In the section Ill-Ill shown in FIG. 3 according to FIG. 2, that in the rear region, that is to say in the region of the smaller diameter, Centrifuge basket on the sieve segments arranged towards the inside wear protection layer 15 can be seen. The material to be dried is fed into this area.
  • FIG. 4 shows the detail IV according to FIG. 3, from which the design of the rear edge of the carrying basket 11 can be seen.
  • a flange 11a with a circumferential conical groove 11b is arranged on the rear edge of the support basket 11.
  • the circumferential recess in the flange 11a also forms an abutment shoulder 11c in addition to the conical groove 11b.
  • Taper groove 11b and contact shoulder 11c serve to axially and radially fix the sieve segment 12 and at the same time to center the sieve segment 12 in the holding basket 11.
  • the sieve segment 12 has at its front end a clamping strip 12a with which it rests on the carrying basket 11.
  • the clamping ring 13 has a conical surface 13a, which rests on the clamping strip 12a of the sieve segment 12, this conical surface 13a of the clamping ring 13 having the same inclination as the clamping strip 12a against the axis of the centrifuge basket, so that there is a circumferential contact surface in the form of a Cone shell section results.
  • the screen segment 12 is fixed by the clamping ring 13 simultaneously in the radial and axial directions.
  • the clamping ring 13 is screwed by means of screws 14 to a flange 11d arranged on the front edge of the support basket 11.
  • FIG. 6 shows a top view of a sieve segment 12 with a clamping bar 12a, which extends over the entire arc length of the front edge of the sieve segment 12 and can be gripped by the clamping ring 13.
  • the screen 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 projections 22a arranged equidistantly.
  • 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 beveled surface 22b, which can be overlapped by a clamping part or a clamping ring and by means of which it can be fixed to the carrying basket with a force fit.
  • the clamping ring 33 overlaps the sieve segment 32.
  • the clamping ring 33 has a conical support surface 33a, the inclination of which against the axis of the centrifuge basket counteracts the inclination of the sieve segment 32 the axis of the centrifuge basket corresponds, so that a circumferential contact surface is formed in the form of a conical jacket section.
  • the sieve segment 32 is non-positively fixed against the carrier basket 31 both in the radial and in the axial direction.
  • the clamping ring 33 is screwed by means of screws 34 against the flange 31 d arranged at the front end of the support basket 31.
  • the screen segment 32 is a slotted screen, the struts 32b of which are fastened on cross members 32c.
  • the screen segment 42 is a slotted screen, the struts 42b of which are arranged on cross members 42c.
  • a flat iron 46 is arranged in the region of the front end of the sieve segment 42.
  • the sieve segment 42 lies with the flat iron 46 and the cross beams 42c on the support basket 41.
  • the fixing to the carrier cage is carried out by means of a clamping ring 43 which overlaps the flat iron 46 corresponding to the arc length of the sieve segment 42 and which has a correspondingly shaped conical surface 43a.
  • the clamping ring 43 which overlaps the flat iron 46 corresponding to the arc length of the sieve segment 42 and which has a correspondingly shaped conical surface 43a.
  • 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 Sieve segments 52 are inserted.
  • the sieve segments 52 are fixed to the carrying basket 51 by means of coaxial clamping rails 56.
  • the carrier basket 51 has a circumferential centering groove for receiving the rear end of the sieve segments 52.
  • FIG. 13 shows part XIII according to FIG. 12.
  • the sieve segments 52 lie on the inside in the carrying basket 51 and have projections 52a, 52b on their sides towards the adjacent sieve segment, which can be overlapped by the terminal strip 56.
  • the clamping strips 56 are fixed on the carrier basket 51 by means of screws 54. Due to the arrangement of the screw connections of the terminal block 56 on the outside of the carrier cage 51, the terminal blocks have a smooth surface on the inside, so that premature wear is avoided.
  • FIG. 14 shows a top view of a sieve segment 52 with which projections 52a, 52b are arranged on the sides extending to the adjacent sieve segment, which in the case of slotted sieve segments can simply be formed by correspondingly longer transverse profiles.
  • FIG. 15 shows a further exemplary embodiment of the fixing of a sieve segment 62 at the rear edge, that is to say in the region of the smaller diameter of the centrifuge basket.
  • the sieve segment 62 is overlapped at its rear end 62a by a clamping ring 63 which has a conical outer circumference 63a.
  • the conical circumference 63a of the clamping ring 63 forms with the end region 62a of the sieve segment 62 a circumferential bearing surface in the form of a conical jacket section.
  • the clamping ring 63 is screwed by means of screws 64 against the flange 61a arranged at the rear end of the carrier cage 61 and thus fixes the sieve segment 62 in the axial direction and in the circumferential direction.

Landscapes

  • Centrifugal Separators (AREA)

Abstract

L'invention concerne un panier de centrifugeuse destiné à une centrifugeuse à tamis, notamment à une centrifugeuse à tamis à vis sans fin, une centrifugeuse à tamis à poussoir ou une centrifugeuse à tamis oscillante, comportant un panier support conique extérieur (11) et des segments de tamis intégrés au panier support. Les segments de tamis (12) peuvent être fixés au panier support (11) sur leur bord avant et/ou arrière par l'intermédiaire d'au moins un élément de blocage (13) par connexion par friction. L'invention concerne également un procédé de montage d'un tel panier de centrifugeuse.
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 true EP1827700A1 (fr) 2007-09-05
EP1827700B1 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
WO2019242877A1 (fr) 2018-06-19 2019-12-26 Siebtechnik Gmbh Segment de tamis pour centrifugeuse à tamis

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8297445B2 (en) 2007-11-14 2012-10-30 Filtration Fibrewall Inc. Screen basket
WO2013079194A2 (fr) * 2011-11-28 2013-06-06 Alfa Laval Corporate Ab Séparateur centrifuge ayant des propriétés 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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DE925818C (de) * 1952-09-16 1955-03-31 Siteg Siebtech Gmbh Verschleissfester Siebbelag fuer Siebzentrifugen
DE1777772U (de) * 1958-08-16 1958-11-13 Steinhaus Gmbh Verbindungsvorrichtung bei zentrifugenbelaegen aus spaltsieben.
DE2527227A1 (de) * 1975-06-19 1976-12-23 Braunschweigische Masch Bau Kontinuierlich arbeitende zentrifuge, insbesondere fuer die zuckerindustrie
DE2612006A1 (de) * 1976-03-20 1977-09-29 Buckau Wolf Maschf R Kontinuierlich arbeitende zentrifuge, insbesondere zuckerzentrifuge
EG12825A (en) * 1977-05-05 1979-12-31 Braunschweigische Masch Bau Centrifugeuse a sucre a fonctionnement continu
GB2033242A (en) * 1978-10-20 1980-05-21 Greening N Ltd Screening Apparatus
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DE8309438U1 (de) * 1983-03-30 1988-05-26 Hein, Lehmann AG, 4000 Düsseldorf Zentrifugenkorb
JP2637364B2 (ja) * 1994-04-13 1997-08-06 株式会社松本機械製作所 遠心分離機
JPH10180144A (ja) * 1996-12-26 1998-07-07 Mitsubishi Kakoki Kaisha Ltd 遠心濾過機用濾材の固定金具
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Cited By (1)

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

Also Published As

Publication number Publication date
AU2005312185B2 (en) 2010-11-18
AU2005312185A1 (en) 2006-06-08
EP1827700B1 (fr) 2013-12-18
WO2006058567A1 (fr) 2006-06-08
ZA200704061B (en) 2008-08-27
CN1988960A (zh) 2007-06-27
DE102004057859A1 (de) 2006-06-01
CN100584468C (zh) 2010-01-27

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