EP1531013A2 - Unité de séparation et disque à étoile - Google Patents

Unité de séparation et disque à étoile Download PDF

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Publication number
EP1531013A2
EP1531013A2 EP04020102A EP04020102A EP1531013A2 EP 1531013 A2 EP1531013 A2 EP 1531013A2 EP 04020102 A EP04020102 A EP 04020102A EP 04020102 A EP04020102 A EP 04020102A EP 1531013 A2 EP1531013 A2 EP 1531013A2
Authority
EP
European Patent Office
Prior art keywords
hub
screen
arms
stars
siebaggregat
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.)
Withdrawn
Application number
EP04020102A
Other languages
German (de)
English (en)
Other versions
EP1531013A3 (fr
Inventor
Heinz Backers
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.)
Backers Maschinenbau GmbH
Original Assignee
Backers Maschinenbau 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 Backers Maschinenbau GmbH filed Critical Backers Maschinenbau GmbH
Publication of EP1531013A2 publication Critical patent/EP1531013A2/fr
Publication of EP1531013A3 publication Critical patent/EP1531013A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • B07B1/155—Roller screens using corrugated, grooved or ribbed rollers the rollers having a star shaped cross section

Definitions

  • the invention relates to a sieve unit with rotating screen stars, which on several, arranged sieve shafts are arranged, wherein the screen stars respectively a plurality of arranged on a hub and in the direction of rotation successive arms exhibit.
  • Stern Sieves as Siebaggregate be among other things for the screening of ballast and Stones, possibly also in connection with cohesive soil used.
  • preferred Applications include the screening of ballast, stones in the size range 10-50 mm and / or quarry material.
  • Known star screens have several arranged in a plane and to each other parallel screen shafts, each with several screen stars on.
  • the sieve stars immediately adjacent sieve shafts are arranged and mesh on offset together.
  • the distance of the screen waves from each other, the distance between adjacent Screen stars on each same screen shaft and the dimensions of each Siebsterne significantly influence the screening effect or the sieving result.
  • Goal is one as accurate as possible screening process. That is, defined small sizes are meant by the Sieve fall through. In contrast, larger parts are said to be from the spinning screen stars be transported across the sieve away.
  • the invention is intended to eliminate the disadvantages described. In particular, should be avoided be that individual bodies in the spaces between in the direction of rotation successive arms of a sieve star get. Also should as possible sticking prevented or reduced by material.
  • the sieve unit according to the invention is characterized in that between successive arms are arranged on the hub webs, the webs in Axial and preferably also in the radial direction of the screen stars smaller dimensions have as the respective adjacent arms.
  • the bars connect the adjacent arms together, especially only near the hub. Single bodies get to the footbridges and are prevented by these, between exactly to clamp two arms.
  • the webs in the radial direction over the hub by 10-30% of Hub radius over.
  • three different diameters of Meaning namely the outer diameter of the screen stars in total, accordingly an envelope of the arms, the outer diameter of the hub and an outer diameter measured up to ridge outer edges, also referred to as outer diameter of the webs.
  • the outer diameter of the webs should be 10-30% larger than that Outer diameter of the hub, in particular about 20% larger.
  • the width of the webs in the axial direction about 1/10 to 1 ⁇ 2 of the width the poor.
  • a width of the webs of 1/5 of the width of the arms for example 6 mm width of the webs at 30 mm width of the arms.
  • the size ratio is Outer diameter hub to outer diameter sieves total not less than 0.5.
  • Preferred is a size ratio greater than 0.5, about 8:15.
  • successive in a sieving in the direction of rotation provided at least eight arms. Preferably, about twelve arms. These too Measure affects the better transport of coarser parts. The delivery angle the parts is better. The re-start the Siebaggregats with overlying material is relieved.
  • the hub a sleeve made of metal arranged.
  • the sleeve is made of aluminum or a Aluminum alloy.
  • the screen stars usually consist of a flexible Material, in particular rubber or PUR. This ensures that cohesive material not or hardly adheres to the arms, as these are under the pressure of the material twist. The hub hardly gets twisted. Accordingly, cohesive Attach material.
  • the aluminum sleeve has a less adhesive due to the material Surface on. Accordingly, less cohesive material sticks. interruptions the screening process by bonding are with the inventive design less often or not appearing anymore.
  • the sleeves have only a small each Wall thickness, which does not take into account when determining the hub diameter becomes.
  • each sleeve is adjacent between on a screen shaft Arranged star screens, such that adjacent to each other and to the arms adjacent hub segments of adjacent screen stars are covered by the sleeve.
  • n e.g., nine
  • n-1 e.g., 8 sleeves the same sieve shaft arranged.
  • On the outermost hub segments can Sockets with half axial dimension sit.
  • the invention also relates to a sieving with one or more of the aforementioned features.
  • a Siebstern 10 for a Stemsieb has arranged on a hub 11 and in Direction of rotation of successive arms 12. Axially centered is the hub 11 with a provided through opening 13 whose cross section in the manner of a square is trained. The Siebstern 10 is so on a correspondingly shaped shaft attachable and not rotatable with respect to this. A drive of the sieve star 10 through the shaft not shown is possible.
  • the protruding from the hub 11 arms 12 lie in a radial plane and are light against the direction of rotation - arrow 14 - angled and curved formed with in the direction on an envelope 15 of decreasing cross-section.
  • the conveying direction of the material is in Fig. 3 indicated by the arrow F.
  • each adjacent arms 12 each have a lip or a web 18 is arranged. This connects the respective adjacent arms 12 near the hub 11 and has in axial Direction a smaller extension (width) than the arms 12, in the present case also in the radial direction.
  • the number of arms 12 of a sieve star 10. Preferred at least nine arms. According to FIG. 2, twelve arms 12 are provided. This is one relatively fine screening possible. Also, the starting behavior of the star screen is favored.
  • the individual screen stars 10 are made of the same material throughout, especially made of rubber or PUR, for example PUR 80-85 Shore. The material should allow elasticity of the arms 12. Prevents damage to the Poor. At the same time a self-cleaning of the screen starter 10 is favored overall. However, this self-cleaning effect in the region of the hub 11 is the lowest.
  • the overall diameter D A of the screen star 10 corresponding to the envelope 15, a diameter D S corresponding to the outermost circumference of the webs 18 and a hub diameter D N are in certain relations to one another.
  • the successive in a Stemsieb in the conveying direction of the screen stars can better remove the large parts of the respective above arranged screening stars.
  • the outer diameter D S of the webs 18 is about 10-40% larger than the hub diameter D N. In the example of FIG. 2, D S is about 20% larger than D N.
  • the width of the webs in the axial direction is about 1/10 to 1 ⁇ 2 of the width of the arms 12. In the example of FIG. 2, the ratio is about 1/3.
  • the webs 18 are here with radial directed side walls formed. That is, the dimension of the webs 18 in Axial direction changes depending on the distance to the hub 11 at most slightly.
  • Hub segments 16, 17 sleeves 19 arranged aluminum. These extend into Axial direction in each case via two adjacent hub segments 16, 17, so that between two in the axial direction adjacent screen stars 10 no circumferential column arise. Rather, between the hubs 11 adjacent screen stars 10 existing Column 20 covered by the sleeves 19.
  • the sleeves 19 have only a small wall thickness, preferably less than 1/3 of the Radial dimension of the webs 18.
  • the screen stars 10 but can also with sleeves 19 be provided without the webs 18 exhibit.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP04020102A 2003-11-12 2004-08-25 Unité de séparation et disque à étoile Withdrawn EP1531013A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10352796A DE10352796A1 (de) 2003-11-12 2003-11-12 Siebaggregat und Siebstern
DE10352796 2003-11-12

Publications (2)

Publication Number Publication Date
EP1531013A2 true EP1531013A2 (fr) 2005-05-18
EP1531013A3 EP1531013A3 (fr) 2007-10-10

Family

ID=34428687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04020102A Withdrawn EP1531013A3 (fr) 2003-11-12 2004-08-25 Unité de séparation et disque à étoile

Country Status (2)

Country Link
EP (1) EP1531013A3 (fr)
DE (1) DE10352796A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009141158A1 (fr) 2008-05-23 2009-11-26 Ashland-Südchemie-Kernfest GmbH Catalyseurs contenant de l'acide méthane-sulfonique pour le procédé de durcissement à l'acide
WO2010072317A3 (fr) * 2008-12-22 2010-08-19 Doppstadt Familienholding Gmbh Étoile de criblage destinée notamment à un crible à étoiles
WO2026000051A1 (fr) * 2024-06-25 2026-01-02 Recimac Industria E Comercio Ltda Epp Tamis dynamique à rouleaux avec étoiles auto-nettoyantes pour la classification et le nettoyage d'un minerai de fer, avec dispositif antichocs, rouleaux à moteurs indépendants, système d'axes à changement rapide et dispositif anti-incrustations

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006017138B4 (de) * 2006-04-12 2008-04-30 Mahrwald, Jürgen, Dr. agr. Vorrichtung zum Klassieren eines Stoffgemisches
DE102007027846B3 (de) * 2007-06-13 2008-05-15 Neuenhauser Maschinenbau Gmbh Sternsiebmaschine
DE102010027665B4 (de) 2010-07-19 2014-08-07 J. Willibald Gmbh Siebwalzen für eine Siebeinheit zum Sieben von verrottungsfähigem Material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9307096U1 (de) * 1993-05-10 1993-09-23 BG Recyclingmaschinen GmbH, 36341 Lauterbach Siebsystem
NL1007910C2 (nl) * 1997-12-24 1999-06-25 Lubo Bv Maschf Sterzeef.
DE29808309U1 (de) * 1998-05-11 1998-07-23 BG Recyclingmaschinen GmbH, 36341 Lauterbach Siebanlage
DE19942402C1 (de) * 1999-09-06 2001-07-05 Albert Zubraegel Maschb Gmbh Siebvorrichtung für Schüttgüter
ATE216925T1 (de) * 1999-10-01 2002-05-15 Bernd Guenther Rotationssiebelement sowie verfahren zum reinigen von rotationssiebelementen
DE19952005B4 (de) * 1999-10-20 2004-02-19 Eurec Technology Gmbh Entsorgungsanlagen Stern- oder Scheibensiebanordnung, umfassend mehrere Siebscheibenwellen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009141158A1 (fr) 2008-05-23 2009-11-26 Ashland-Südchemie-Kernfest GmbH Catalyseurs contenant de l'acide méthane-sulfonique pour le procédé de durcissement à l'acide
WO2010072317A3 (fr) * 2008-12-22 2010-08-19 Doppstadt Familienholding Gmbh Étoile de criblage destinée notamment à un crible à étoiles
US20110303587A1 (en) * 2008-12-22 2011-12-15 Johann Doppstadt Star screen, in particular for a star screen machine
US8827083B2 (en) 2008-12-22 2014-09-09 Doppstadt Familienholding Gmbh Star screen, in particular for a star screen machine
WO2026000051A1 (fr) * 2024-06-25 2026-01-02 Recimac Industria E Comercio Ltda Epp Tamis dynamique à rouleaux avec étoiles auto-nettoyantes pour la classification et le nettoyage d'un minerai de fer, avec dispositif antichocs, rouleaux à moteurs indépendants, système d'axes à changement rapide et dispositif anti-incrustations

Also Published As

Publication number Publication date
EP1531013A3 (fr) 2007-10-10
DE10352796A1 (de) 2005-06-23

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