EP0834353A1 - Device and disc for separating materials - Google Patents
Device and disc for separating materials Download PDFInfo
- Publication number
- EP0834353A1 EP0834353A1 EP97202956A EP97202956A EP0834353A1 EP 0834353 A1 EP0834353 A1 EP 0834353A1 EP 97202956 A EP97202956 A EP 97202956A EP 97202956 A EP97202956 A EP 97202956A EP 0834353 A1 EP0834353 A1 EP 0834353A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- periphery
- shafts
- discs
- 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.)
- Granted
Links
Images
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 for instance paper and cardboard.
- the present invention has for its object to provide a device for mechanizing separation of materials, in particular paper and cardboard.
- 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.
- discs 3 can be mounted displaceably on shafts 4,5 and/or for shafts 4,5 to be displaceable in axial direction.
- the centre line distance between two adjacent shafts 4,5 can also take an adjustable form.
- fig. 3 shows a disc 15 with a "rugby ball"-shaped appearance.
- Disc 15 is provided with two top positions 16 which are located further from the point of rotation M of disc 15 than all other peripheral points on disc 15.
- Disc 15 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
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Combined Means For Separation Of Solids (AREA)
- Centrifugal Separators (AREA)
- Paper (AREA)
Abstract
Description
Claims (18)
- Device for separating materials such as for instance paper and cardboard, comprising at least two substantially parallel, rotatable shafts on which discs are mounted, wherein through rotation of the shafts material thrown onto the shafts is displaced over the discs and drops downward partially between the discs.
- Device as claimed in claim 1, wherein the rotatable shafts are located in one plane.
- Device as claimed in claim 2, wherein the angular position of the plane through the shafts is adjustable.
- Device as claimed in any of the foregoing claims, wherein the position of at least one shaft is adjustable in axial direction.
- Device as claimed in any of the foregoing claims, wherein the number and the positions of the discs on a rotatable shaft are adjustable.
- Device as claimed in any of the foregoing claims, wherein the mutual distance between two rotatable shafts is adjustable.
- Device as claimed in any of the foregoing claims, 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.
- Device as claimed in claim 7, wherein the shape of the disc is symmetrical relative to a line through the two top positions.
- Device as claimed in any of the foregoing claims, wherein 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.
- Device as claimed in any of the foregoing claims, wherein the periphery of the disc has a shape which substantially corresponds with the periphery of a cross-section through the centre line of a rugby ball.
- Device as claimed in any of the claims 8-10, wherein the disc also has a line of symmetry which intersects the first line of symmetry perpendicularly in the middle between the top positions.
- Device as claimed in any of the foregoing claims, wherein the disc is provided on the periphery with a resilient material layer.
- Device as claimed in any of the foregoing claims, wherein the mutual centre line distance of two adjacent shafts is less than twice the distance from the top position of a disc to the centre line on which this disc is mounted.
- Disc for use in a device for separating materials such as for instance paper and cardboard, which disc is formed such that it comprises at least two top positions which are mirror-symmetrical relative to the rotation point of the disc and the distance of which to the rotation point is greater than the distance from every other peripheral point to the rotation point.
- Disc as claimed in claim 14, wherein the shape of the disc is symmetrical relative to a line through the two top positions.
- Disc as claimed in claim 15, wherein the disc also has a second line of symmetry which intersects the first line of symmetry perpendicularly between the top positions.
- Disc as claimed in any of the claims 14-16, wherein 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.
- Disc as claimed in any of the claims 14-17, wherein the periphery of the disc has a shape which substantially corresponds with the periphery of a cross-section through the centre line of a rugby ball.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1004131 | 1996-09-27 | ||
NL1004131 | 1996-09-27 | ||
NL1005998A NL1005998C2 (en) | 1996-09-27 | 1997-05-07 | Device for separating materials such as e.g. paper and cardboard for reuse |
NL1005998 | 1997-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0834353A1 true EP0834353A1 (en) | 1998-04-08 |
EP0834353B1 EP0834353B1 (en) | 2002-06-19 |
Family
ID=26642446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97202956A Expired - Lifetime EP0834353B1 (en) | 1996-09-27 | 1997-09-26 | Device and disc for separating materials |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0834353B1 (en) |
AT (1) | ATE219393T1 (en) |
DE (1) | DE69713465T2 (en) |
DK (1) | DK0834353T3 (en) |
ES (1) | ES2175266T3 (en) |
PT (1) | PT834353E (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1188489A2 (en) * | 2000-09-13 | 2002-03-20 | Ionics Italba S.P.A. | Sieving apparatus for biomass |
EP1317970A1 (en) * | 2001-12-05 | 2003-06-11 | Renzo Greghi | Screening apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2743813A (en) * | 1951-04-25 | 1956-05-01 | Lester E Erickson | Materials separating means |
GB2267235A (en) * | 1992-05-27 | 1993-12-01 | Bord Na Mona | Screening apparatus |
DE4408903A1 (en) * | 1994-03-16 | 1995-09-21 | Ernst Josef Kronenberger | Sieve for processing of excavated materials esp. clay |
WO1995035168A1 (en) * | 1994-06-22 | 1995-12-28 | Bulk Handling Systems, Inc. | Method and apparatus for classifying materials |
JPH08196778A (en) * | 1995-01-27 | 1996-08-06 | Tekuni Haitsu:Kk | Washing net |
EP0773070A1 (en) * | 1996-09-18 | 1997-05-14 | Machinefabriek Bollegraaf Appingedam B.V. | A waste paper sorting conveyor for sorting waste paper from waste cardboard |
-
1997
- 1997-09-26 AT AT97202956T patent/ATE219393T1/en not_active IP Right Cessation
- 1997-09-26 EP EP97202956A patent/EP0834353B1/en not_active Expired - Lifetime
- 1997-09-26 DE DE69713465T patent/DE69713465T2/en not_active Expired - Fee Related
- 1997-09-26 ES ES97202956T patent/ES2175266T3/en not_active Expired - Lifetime
- 1997-09-26 PT PT97202956T patent/PT834353E/en unknown
- 1997-09-26 DK DK97202956T patent/DK0834353T3/en active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2743813A (en) * | 1951-04-25 | 1956-05-01 | Lester E Erickson | Materials separating means |
GB2267235A (en) * | 1992-05-27 | 1993-12-01 | Bord Na Mona | Screening apparatus |
DE4408903A1 (en) * | 1994-03-16 | 1995-09-21 | Ernst Josef Kronenberger | Sieve for processing of excavated materials esp. clay |
WO1995035168A1 (en) * | 1994-06-22 | 1995-12-28 | Bulk Handling Systems, Inc. | Method and apparatus for classifying materials |
JPH08196778A (en) * | 1995-01-27 | 1996-08-06 | Tekuni Haitsu:Kk | Washing net |
EP0773070A1 (en) * | 1996-09-18 | 1997-05-14 | Machinefabriek Bollegraaf Appingedam B.V. | A waste paper sorting conveyor for sorting waste paper from waste cardboard |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 096, no. 012 26 December 1996 (1996-12-26) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1188489A2 (en) * | 2000-09-13 | 2002-03-20 | Ionics Italba S.P.A. | Sieving apparatus for biomass |
EP1188489A3 (en) * | 2000-09-13 | 2002-06-26 | Ionics Italba S.P.A. | Sieving apparatus for biomass |
EP1317970A1 (en) * | 2001-12-05 | 2003-06-11 | Renzo Greghi | Screening apparatus |
Also Published As
Publication number | Publication date |
---|---|
DK0834353T3 (en) | 2002-07-15 |
DE69713465D1 (en) | 2002-07-25 |
ES2175266T3 (en) | 2002-11-16 |
EP0834353B1 (en) | 2002-06-19 |
DE69713465T2 (en) | 2003-01-09 |
ATE219393T1 (en) | 2002-07-15 |
PT834353E (en) | 2002-10-31 |
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