EP0834353B1 - Vorrichtung und Scheibe zum Trennen von Stoffen - Google Patents

Vorrichtung und Scheibe zum Trennen von Stoffen Download PDF

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Publication number
EP0834353B1
EP0834353B1 EP97202956A EP97202956A EP0834353B1 EP 0834353 B1 EP0834353 B1 EP 0834353B1 EP 97202956 A EP97202956 A EP 97202956A EP 97202956 A EP97202956 A EP 97202956A EP 0834353 B1 EP0834353 B1 EP 0834353B1
Authority
EP
European Patent Office
Prior art keywords
disc
discs
shafts
periphery
foregoing
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.)
Expired - Lifetime
Application number
EP97202956A
Other languages
English (en)
French (fr)
Other versions
EP0834353A1 (de
Inventor
Robertus Gerhardus Spekreijse
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.)
Machinefabriek Boa BV
Original Assignee
Machinefabriek Boa BV
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
Priority claimed from NL1005998A external-priority patent/NL1005998C2/nl
Application filed by Machinefabriek Boa BV filed Critical Machinefabriek Boa BV
Publication of EP0834353A1 publication Critical patent/EP0834353A1/de
Application granted granted Critical
Publication of EP0834353B1 publication Critical patent/EP0834353B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a device for separating materials such as paper and cardboard, comprising at least two substantially parallel, rotatable shafts on which discs are mounted, wherein the periphery of at least one of the discs is such that at least at two top positions mirror-symmetrical relative to the rotation point of the disc the distance to the rotation point is the same and is greater than at all other positions located on the periphery, wherein through rotation of the shafts material thrown onto the shafts is displaced over the discs and drops partially downward between the discs.
  • the intermedite European patent application EP-A-0 773 070 discloses a device as mentioned above, in which the mutual spacing of the discs is adjustable in longitudinal direction of the respective shaft.
  • GB-A-2 267 235 describes a device as mentioned above. This device has the disadvantage that it can not be adjusted to several types of mixtures of cardboard and paper.
  • a device according to the preamble of claim 1 is disclosed in WO 95 35168 A.
  • the present invention has for its object to provide a device which eliminates above disadvantages.
  • the invention provides a device which is characterized in that the position of at least one shaft is adjustable in axial direction.
  • the shafts are herein preferably located in one plane, the angular position of which is adjustable.
  • this material will be displaced over the surface by rotation of the shafts and the discs rigidly connected thereto.
  • a surface which encloses an angle of for instance 18° with the bottom, wherein mixed material is thrown onto a low-lying position and is subsequently transported upward over the surface by the rotation of the shafts until it reaches the edge of the surface and there drops downward.
  • a part of the material will drop down between the spaces left clear by discs and shafts.
  • the paper will drop downward during this transport, so that substantially only cardboard remains which drops downward over the top edge of the active surface.
  • An optimum angular position of the surface can be adjusted subject to the material for processing and the dimensions of discs and shafts.
  • the position of at least one shaft is adjustable in axial direction.
  • the number and/or the position of the discs on a rotatable shaft is adjustable.
  • the first derivative of the periphery of the disc has a continuous character, so that the periphery of the disc does not comprise any angles.
  • the preferred embodiment of the disc which complies with this condition has a shape such that it substantially corresponds with the periphery of a cross-section through the centre line of a rugby ball.
  • the absence of angles has the advantage that the material for separating will not be damaged at all by the discs.
  • Another advantage is that the separating process progresses uniformly and the device is subjected to relatively little load. Particularly advantageous results are obtained with discs with a rugby ball-shaped periphery.
  • the device 1 shown in figure 1 shows an active surface 2 formed by the upper sides of discs 3 which are mounted on rotatable shafts 4,5.
  • Shafts 4,5 are arranged for rotation in a frame 6 such that the centre lines of shafts 4,5 lie in one plane.
  • Standing walls 7 are placed on the upper longitudinal sides of the active surface 2.
  • the device 1 is provided with a motor 8 with which the upper shaft 5 is driven. Because all shafts 4,5 are provided with mutually engaging, schematically shown, tooth wheels 9, the shafts 4,5 are rotatable synchronously.
  • the angular position of active surface 2 relative to the bottom is adjustable in that two legs 10 located close to the lowest lying shafts 4, are height-adjustable as according to arrow P1.
  • the lower side of the active surface is hereby adjustable in height as according to arrow P2.
  • Fig. 2 shows a top view of a part of device 1, in which can be seen that the density of discs 3 on shafts 4 is greater than the density of discs 3 on shafts 5.
  • the side walls 7 are arranged to prevent paper or cardboard portions dropping off the active surface at the sides.
  • a differentiation in the separating action of active surface 2 is obtained by the difference in disc distances on the different shafts 4, 5.
  • shafts 4,5 to be displaceable in axial direction.
  • the discs 3 can also be mounted displaceably on shafts 4,5.
  • the centre line distance between two adjacent shafts 4,5 can also take an adjustable form.
  • fig. 3 shows a disc 3 with a "rugby ball"-shaped appearance.
  • Disc 3 is provided with two top positions 16 which are located further from the point of rotation M of disc 3 than all other peripheral points on disc 3.
  • Disc 3 is provided with a central opening 17 with which it can be mounted on a shaft 4,5 of a separating device 1 according to the invention.
  • the disc 15 can be provided with a resilient material layer 18.

Landscapes

  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Centrifugal Separators (AREA)

Claims (12)

  1. Vorrichtung zum Trennen von Materialien, z.B. zum Trennen von Papier und Karton, mit wenigstens zwei im wesentlichen parallelen drehbaren Wellen (4, 5), auf denen Scheiben (3) montiert sind, wobei der Umfang wenigstens einer der Scheiben (3) derart ist, daß wenigstens an zwei spiegelsymmetrisch zum Drehpunkt (M) der Scheibe (3) liegenden Stellen (16) der Abstand zum Drehpunkt (M) gleich und größer ist als an allen anderen am Umfang liegenden Stellen, so daß durch Drehung der Wellen (4, 5) das auf die Wellen (4, 5) aufgebrachte Material über die Scheiben (3) gefördert wird und teilweise nach unten zwischen den Scheiben (3) herabfällt,
    dadurch gekennzeichnet, daß
       die Lage der wenigstens einen Welle (4, 5) in Axialrichtung einstellbar ist.
  2. Vorrichtung nach Anspruch 1, bei welcher die drehbaren Wellen (4, 5) in einer Ebene angeordnet sind.
  3. Vorrichtung nach Anspruch 2, bei welcher die Winkellage der durch die Wellen (4, 5) gelegten Ebene einstellbar ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die Zahl und die Lage der Scheiben (3) auf einer drehbaren Welle (4, 5) einstellbar ist.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher der gegenseitige Abstand zwischen zwei drehbaren Wellen (4, 5) einstellbar ist.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher der Umfang wenigstens einer der Scheiben (3) derart ist, daß wenigstens an zwei Spitzenpositionen (16) die Spiegel symmetrisch relativ zum Drehpunkt (M) der Scheibe liegen und der Abstand nach dem Drehpunkt gleich und größer ist als an allen anderen Stellen des Umfangs.
  7. Vorrichtung nach Anspruch 6, bei welcher die Form der Scheibe (3) symmetrisch zu einer Linie durch die beiden Spitzenpositionen ist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die erste Ableitung des Umfangs der Scheibe (3) eine kontinuierliche Form hat, so daß der Umfang der Scheibe keine Winkel aufweist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher der Umfang der Scheibe (3) eine Form hat, die im wesentlichen dem Umfang eines Querschnitts durch die Mittellinie eines Rugby-Balls hat.
  10. Vorrichtung nach einem der Ansprüche 7 bis 9, bei welcher die Scheibe außerdem eine Symmetrielinie besitzt, die die erste Symmetrielinie in der Mitte zwischen den Spitzenpositionen (16) senkrecht schneidet.
  11. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die Scheibe (3) am Umfang mit einer elastischen Materialschicht (18) ausgestattet ist.
  12. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher der gegenseitige Mittellinienabstand zweier benachbarter Wellen (4, 5) kleiner ist als der doppelte Abstand von der Spitzenposition einer Scheibe nach der Mittellinie, auf der die Scheibe (3) montiert ist.
EP97202956A 1996-09-27 1997-09-26 Vorrichtung und Scheibe zum Trennen von Stoffen Expired - Lifetime EP0834353B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL1004131 1996-09-27
NL1004131 1996-09-27
NL1005998 1997-05-07
NL1005998A NL1005998C2 (nl) 1996-09-27 1997-05-07 Inrichting en schijf voor het scheiden van materialen.

Publications (2)

Publication Number Publication Date
EP0834353A1 EP0834353A1 (de) 1998-04-08
EP0834353B1 true EP0834353B1 (de) 2002-06-19

Family

ID=26642446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202956A Expired - Lifetime EP0834353B1 (de) 1996-09-27 1997-09-26 Vorrichtung und Scheibe zum Trennen von Stoffen

Country Status (6)

Country Link
EP (1) EP0834353B1 (de)
AT (1) ATE219393T1 (de)
DE (1) DE69713465T2 (de)
DK (1) DK0834353T3 (de)
ES (1) ES2175266T3 (de)
PT (1) PT834353E (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1318853B1 (it) * 2000-09-13 2003-09-10 Ionics Italba Spa Macchina di vagliatura particolarmente studiata per la separazione difrazioni derivanti dalla stabilizzazione di biomasse provenienti dalla
ITMI20012570A1 (it) * 2001-12-05 2003-06-05 Renzo Greghi Macchina di vagliatura per il trattamento di frazioni derivanti da processi di lavorazione in genere

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2743813A (en) * 1951-04-25 1956-05-01 Lester E Erickson Materials separating means
GB2267235B (en) * 1992-05-27 1995-07-12 Bord Na Mona Screening apparatus
DE4408903A1 (de) * 1994-03-16 1995-09-21 Ernst Josef Kronenberger Sieb zur Aufbereitung bindiger Aushubmassen für den Wiedereinbau
US5799801A (en) * 1994-06-22 1998-09-01 Bulk Handling System, Inc. Method and apparatus for separating paper from cardboard
JPH08196778A (ja) * 1995-01-27 1996-08-06 Tekuni Haitsu:Kk 洗濯用ネット
ES2136363T5 (es) * 1996-09-18 2003-02-16 Machf Bollegraaf Appingedam B Transportador de seleccion para la separacion de desechos de papel de los desechos de carton.

Also Published As

Publication number Publication date
ATE219393T1 (de) 2002-07-15
EP0834353A1 (de) 1998-04-08
DE69713465T2 (de) 2003-01-09
DK0834353T3 (da) 2002-07-15
PT834353E (pt) 2002-10-31
ES2175266T3 (es) 2002-11-16
DE69713465D1 (de) 2002-07-25

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