EP0631825A1 - Finger-sieve - Google Patents
Finger-sieve Download PDFInfo
- Publication number
- EP0631825A1 EP0631825A1 EP94890089A EP94890089A EP0631825A1 EP 0631825 A1 EP0631825 A1 EP 0631825A1 EP 94890089 A EP94890089 A EP 94890089A EP 94890089 A EP94890089 A EP 94890089A EP 0631825 A1 EP0631825 A1 EP 0631825A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fingers
- rods
- finger
- sieve
- traverse
- 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
- 239000000463 material Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 4
- 239000012858 resilient material Substances 0.000 claims description 3
- 239000003864 humus Substances 0.000 claims description 2
- 239000003415 peat Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
Definitions
- the invention relates to a finger sieve or slotted sieve, in particular for use in building rubble processing plants, waste treatment plants and screening humus and peat, which has a plurality of rods, fingers or the like arranged in the conveying direction and at a distance from one another, at a distance from this. having.
- a sieve grate which is attached to a frame at both ends, at least one end being connected to the frame by a missing element, so that the grate can vibrate under the influence of vibrating devices.
- Both of the aforementioned screening devices are not suitable for screening sticky materials because of the previously mentioned disadvantage.
- the object of the invention is to eliminate this disadvantage.
- the rods, fingers or the like according to the invention. of a traverse, a beam or the like. are kept flying and swing while conveying the material to be screened. This will self-cleaning the rods, fingers or the like. brought about. This effect is particularly effective when the rods, fingers or the like. consist of resilient material. In this case, by swinging the rods, fingers or the like. a risk of clogging of the finger screen practically excluded.
- the rods, fingers or the like be provided with a plastic coating.
- the rods, fingers or the like. in a traverse, a bar or the like. Poured in plastic, thereby tearing out the rods, fingers or the like. from the traverse, the beam or the like. due to the vibrations of the rods, fingers or the like. not possible.
- This effect can be further enhanced by the fact that, according to a further feature of the invention, at least some of the rods, fingers or the like. in groups or all rods, fingers or the like. a row are interconnected by the plastic mass.
- the rods, fingers or the like be cast in with the same and / or different diameter and / or different gap distances. Clamping in the crossbeam allows these coverings to be changed quickly, which means that only short downtimes of the system are required.
- the traverse, the bar or the like. at least partially made of plastic.
- the crossmember or the beam 1 has an essentially U-shaped cross section and is attached to a frame or the like by means of screws 5, 6 or 7, 8. attached while the spring bars, spring fingers or the like. 3 are poured into plastic carrier 2, which, as can be seen in FIG. 3, are tapered on their lower side tapering outwards and are held by strips 9 which are congruent to Beam 2 are chamfered and are held by screws 4 on the crossmember or on the beam 1.
- two finger sieve elements 10, 11 are arranged side by side, each of which is a series of sieve rods, sieve fingers or the like. wearing. This provides an easy exchange of the elements after removing the bar 9.
- the material to be sieved is vibrated by the finger sieve in the longitudinal direction of the rods, fingers or the like. along the bars, strips or the like. 3 funded. Due to the flying arrangement of the rods, fingers or the like. 3, these are set in oscillating motion, whereby cleaning of the rods, fingers or the like. from the possibly adhering good is achieved. This swinging movement is also by pouring the rods, fingers or the like. supported in the plastic carrier 2.
- the bars or fingers 3 can be other than round, e.g. have an oval, rectangular or other cross-section.
- the cross section of individual bars can be different. The same applies to the gap distances.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Photoreceptors In Electrophotography (AREA)
- Auxiliary Devices For Music (AREA)
- Electrophonic Musical Instruments (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Telephone Function (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
Description
Die Erfindung betrifft ein Fingersieb bzw. Spaltsieb, insbesondere für den Einsatz in Bauschuttaufbereitungsanlagen, Müllaufbereitungsanlagen und Absiebung von Humus und Torf, welches eine Vielzahl in der Förderrichtung angeordneter, quer zu dieser in Abstand voneinander gelegener Stäbe, Finger od.dgl. aufweist.The invention relates to a finger sieve or slotted sieve, in particular for use in building rubble processing plants, waste treatment plants and screening humus and peat, which has a plurality of rods, fingers or the like arranged in the conveying direction and at a distance from one another, at a distance from this. having.
Finger- bzw. Spaltsiebe bekannter Bauart haben bei der erwähnten Verwendung den Nachteil, daß beim Sieben klebriger, insbesondere stark klebriger Materialien das zu siebende Gut während des Gleitens über den Balken und entlang der Stäbe, Finger od.dgl. teilweise haften bleiben, wodurch der Siebeffekt beeinträchtigt und demzufolge ein häufiges Reinigen der Balken, Stäbe, Finger od.dgl. oder ein Austausch derselben bzw. des ganzen Siebes erforderlich ist, womit ein häufig langdauernder Stillstand der Anlage verbunden ist.Known type finger or slotted sieves have the disadvantage in the use mentioned that when sieving sticky, in particular very sticky materials, the material to be sieved during sliding over the bars and along the bars, fingers or the like. partially stick, which affects the sieve effect and consequently frequent cleaning of the bars, rods, fingers or the like. or an exchange of the same or of the entire screen is necessary, which is associated with a frequently long-term standstill of the system.
Durch die EP-A2 212.378 ist eine Siebvorrichtung mit einem seitlich nachgiebig eingespannten, eine rechteckförmige Siebfläche aufweisenden Siebbelag bekannt geworden, wobei von unten gegen diesen wirksamen Schlagleisten vorgesehen sind, die sich zwischen den Sieb-Einspannlagern erstrecken und die unter Einwirkung eines Schwingungsantriebs einen durch Wölbungshub senkrecht zur Siebfläche ausführen.From EP-A2 212.378, a sieve device with a laterally resiliently clamped sieve covering having a rectangular sieve surface has become known, effective beating strips being provided from below against it, which extend between the sieve clamping bearings and which, under the action of an oscillation drive, move through a bulging stroke Execute perpendicular to the screen surface.
Durch die WO 84/04474 ist ein Siebrost bekannt geworden, welcher an seinen beiden Enden an einem Rahmen befestigt ist, wobei mindestens ein Ende am Rahmen durch ein fehlendes Element angeschlossen ist, sodaß der Rost unter dem Einfluß von Vibriereinrichtungen schwingen kann.From WO 84/04474 a sieve grate is known which is attached to a frame at both ends, at least one end being connected to the frame by a missing element, so that the grate can vibrate under the influence of vibrating devices.
Beide zuvor genannten Siebeinrichtungen eignen sich wegen des früher genannten Nachteiles zum Sieben klebriger Materialien nicht.Both of the aforementioned screening devices are not suitable for screening sticky materials because of the previously mentioned disadvantage.
Aufgabe der Erfindung ist diesen Nachteil zu beseitigen. Zur Lösung der gestellten Aufgabe wird vorgeschlagen, daß erfindungsgemäß die Stäbe, Finger od.dgl. von einer Traverse, einem Balken od.dgl. fliegend gehalten sind und während der Förderung des zu siebenden Gutes schwingen. Dadurch wird eine Selbstreinigung der Stäbe, Finger od.dgl. herbeigeführt. Dieser Effekt ist besonders wirksam, wenn die Stäbe, Finger od.dgl. aus federndem Material bestehen. In diesem Fall ist durch das Schwingen der Stäbe, Finger od.dgl. eine Verstopfungsgefahr des Fingersiebes praktisch ausgeschlossen.The object of the invention is to eliminate this disadvantage. To solve the problem it is proposed that the rods, fingers or the like according to the invention. of a traverse, a beam or the like. are kept flying and swing while conveying the material to be screened. This will self-cleaning the rods, fingers or the like. brought about. This effect is particularly effective when the rods, fingers or the like. consist of resilient material. In this case, by swinging the rods, fingers or the like. a risk of clogging of the finger screen practically excluded.
Vorzugsweise können die Stäbe, Finger od.dgl. mit einem Kunststoffüberzug versehen sein.Preferably, the rods, fingers or the like. be provided with a plastic coating.
Als wesentlich erscheint die Anordnung dieser Fingersiebe als Einsätze in Kaskadenform. Beim Übergang von einer Kaskade auf die andere, ist durch den Aufprall des Produktes nach einem freien Fall von ungefähr 10 - 20 cm Höhe, ein Auflockern und dadurch ein Zerteilen desselben auf den schwingenden Stäben, Fingern od.dgl. gegeben.The arrangement of these finger screens as cascade inserts appears to be essential. When transitioning from one cascade to the other, the impact of the product after a free fall of about 10-20 cm in height loosens and thereby breaks it up on the vibrating rods, fingers or the like. given.
Nach einem weiteren Merkmal der Erfindung sind die Stäbe, Finger od.dgl. in einer Traverse, einem Balken od.dgl. in Kunststoff eingegossen, wodurch ein Ausreißen der Stäbe, Finger od.dgl. aus der Traverse, dem Balken od.dgl. infolge der Schwingungen der Stäbe, Finger od.dgl. nicht möglich ist. Diese Wirkung kann noch dadurch verstärkt werden, daß nach einem weiteren Merkmal der Erfindung mindestens ein Teil der Stäbe, Finger od.dgl. gruppenweise oder alle Stäbe, Finger od.dgl. einer Reihe gemeinsam durch die Kunststoffmasse untereinander verbunden sind.According to a further feature of the invention, the rods, fingers or the like. in a traverse, a bar or the like. Poured in plastic, thereby tearing out the rods, fingers or the like. from the traverse, the beam or the like. due to the vibrations of the rods, fingers or the like. not possible. This effect can be further enhanced by the fact that, according to a further feature of the invention, at least some of the rods, fingers or the like. in groups or all rods, fingers or the like. a row are interconnected by the plastic mass.
Nach einem weiteren Merkmal der Erfindung können die Stäbe, Finger od.dgl. mit gleichem und bzw. oder verschiedenem Durchmesser und bzw. oder verschiedenen Spaltabständen fix eingegossen sein. Die Einspannung in die Traverse erlaubt ein rasches Wechseln dieser Beläge, wodurch nur geringe Stillstandzeiten der Anlage erforderlich sind.According to a further feature of the invention, the rods, fingers or the like. be cast in with the same and / or different diameter and / or different gap distances. Clamping in the crossbeam allows these coverings to be changed quickly, which means that only short downtimes of the system are required.
Schließlich kann nach einem weiteren Merkmal der Erfindung die Traverse, der Balken od.dgl. zumindest teilweise aus Kunststoff bestehen.Finally, according to a further feature of the invention, the traverse, the bar or the like. at least partially made of plastic.
In der Zeichnung ist ein Ausführungsbeispiel des erfindungsgemäßen Fingersiebes in vereinfachter Ausführung dargestellt.In the drawing, an embodiment of the finger screen according to the invention is shown in a simplified version.
Es zeigen Fig. 1 eine Vorderansicht,
- Fig. 2
- eine Draufsicht des Fingersiebes,
- Fig. 3
- einen Schnitt nach der Linie III-III der Fig. 1 und
- Fig. 4
- eine Anordnung mehrerer Fingersiebe der erfindungsgemäßen Bauart als Einsätze in Kaskadenform.
- Fig. 2
- a top view of the finger screen,
- Fig. 3
- a section along the line III-III of Fig. 1 and
- Fig. 4
- an arrangement of several finger screens of the type according to the invention as inserts in cascade form.
Mit 1 ist eine Traverse bzw. ein Balken aus Stahl bezeichnet, in welche bzw. welchen im Querschnitt kreisrunde Federstäbe, Federfinger od.dgl. 3, im vorliegenden Fall mit gleichem Durchmesser und in gleichen Spaltabständen fliegend und fix eingespannt sind. Die Traverse bzw. der Balken 1 hat im wesentlichen U-förmigen Querschnitt und ist mittels Schrauben 5, 6 bzw. 7, 8 an einem Gestell od.dgl. befestigt, während die Federstäbe, Federfinger od.dgl. 3 in Kunststoffträger 2 eingegossen sind, welche, wie der Fig. 3 zu entnehmen ist, an ihrer unteren Seite sich nach außen verjüngend abgeschrägt sind und durch Leisten 9 gehalten sind, die kongruent zum Träger 2 abgeschrägt sind und mittels Schrauben 4 an der Traverse bzw. am Balken 1 gehalten sind. Im vorliegenden Falle sind zwei Fingersiebelemente 10, 11 nebeneinander angeordnet, von welchen jedes eine Reihe von Siebstäben, Siebfingern od.dgl. trägt. Dadurch ist ein leichter Austausch der Elemente nach Entfernen der Leiste 9 gegeben.1 with a crossbeam or a bar made of steel is referred to, in which or in the cross section circular spring bars, spring fingers or the like. 3, in the present case with the same diameter and at the same gap spacing, fixed and clamped. The crossmember or the
Das zu siebende Gut wird durch Vibration des Fingersiebes in der Längsrichtung der Stäbe, Finger od.dgl. entlang der Stäbe, Leisten od.dgl. 3 gefördert. Durch die fliegende Anordnung der Stäbe, Finger od.dgl. 3 werden diese in schwingende Bewegung versetzt, wodurch eine Reinigung der Stäbe, Finger od.dgl. vom allenfalls anhaftenden Gut erzielt wird. Diese schwingende Bewegung wird außerdem durch das Eingießen der Stäbe, Finger od.dgl. in den Kunststoffträger 2 unterstützt.The material to be sieved is vibrated by the finger sieve in the longitudinal direction of the rods, fingers or the like. along the bars, strips or the like. 3 funded. Due to the flying arrangement of the rods, fingers or the like. 3, these are set in oscillating motion, whereby cleaning of the rods, fingers or the like. from the possibly adhering good is achieved. This swinging movement is also by pouring the rods, fingers or the like. supported in the
Bei der Anlage nach Fig. 4 ist eine Vielzahl von Fingersieben in kaskadenartiger Anordnung dargestellt.4, a plurality of finger screens are shown in a cascade-like arrangement.
Selbstverständlich können im Rahmen der Erfindung verschieden konstruktive Abänderungen vorgenommen werden. So können die Stäbe oder Finger 3 einen anderen als runden, z.B. ovalen, recht- oder anderseckigen Querschnitt haben. Weiters kann der Querschnitt einzelner Stäbe unterschiedlich sein. Gleiches gilt auch für die Spaltabstände. Weiters besteht die Möglichkeit, die Traverse bzw. den Balken 1 teilweise oder zur Gänze aus Kunststoff herzustellen, in welchen die Stäbe oder Finger eingegossen sind. Schließlich ist es möglich, die Stäbe, Finger od.dgl. 3 aus nichtfederndem Material herzustellen und nur die Einspannung so auszuführen, daß die Stäbe, Finger od.dgl. 3 durch die Förderbewegung bzw. Vibration des Fingersiebes in Schwingungen versetzt werden.Of course, various design changes can be made within the scope of the invention. So the bars or
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1277/93 | 1993-06-30 | ||
| AT0127793A ATA127793A (en) | 1993-06-30 | 1993-06-30 | FINGER SCREEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0631825A1 true EP0631825A1 (en) | 1995-01-04 |
| EP0631825B1 EP0631825B1 (en) | 1998-01-28 |
Family
ID=3510407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94890089A Expired - Lifetime EP0631825B1 (en) | 1993-06-30 | 1994-05-24 | Finger-sieve |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0631825B1 (en) |
| AT (2) | ATA127793A (en) |
| DE (1) | DE59405153D1 (en) |
| ES (1) | ES2115196T3 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0768123A1 (en) * | 1995-10-11 | 1997-04-16 | Ludwig Krieger Draht- Und Kunststofferzeugnisse Gmbh | Finger screen |
| US5769240A (en) * | 1995-10-11 | 1998-06-23 | Western Wire Works, Inc. | Screening systems and methods for screening particulate material |
| US5816412A (en) * | 1996-04-02 | 1998-10-06 | Western Wire Works, Inc. | Screening systems and methods for screening particulate material |
| CN1045907C (en) * | 1996-11-18 | 1999-10-27 | 孙功民 | Method for improving sizing precision of cantilever mesh gauze and cantilever mesh gauze |
| US6070737A (en) * | 1997-12-30 | 2000-06-06 | Western Wire Works, Inc. | Screening systems and methods for screening particulate material |
| GR1003651B (en) * | 2000-07-25 | 2001-08-30 | Ελληνικοιαλευκολιθοιαανωνυμοσαμεταλλευτικηαβιομηχανικηα...Α | Oscilating grid of chords |
| GB2425273A (en) * | 2005-04-22 | 2006-10-25 | Extec Screens & Crushers Ltd | Screening finger tine assembly |
| WO2011003599A1 (en) * | 2009-07-07 | 2011-01-13 | Dieffenbacher Gmbh + Co. Kg | Method for cleaning a flow resistance element in a dispersion machine and device for cleaning a flow resistance element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016122579A1 (en) | 2016-11-23 | 2018-05-24 | Georg Schons | Device and Münzaussierierverfahren for sorting coins from a metal fill |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910180A (en) * | 1955-03-07 | 1959-10-27 | Tyler Co W S | Screen deck structure |
| US3241671A (en) * | 1964-02-12 | 1966-03-22 | Herbert C Brauchla | Vibratory comb sizer |
| GB2233582A (en) * | 1989-07-13 | 1991-01-16 | Bord Na Mona | Screening apparatus |
-
1993
- 1993-06-30 AT AT0127793A patent/ATA127793A/en not_active IP Right Cessation
-
1994
- 1994-05-24 DE DE59405153T patent/DE59405153D1/en not_active Expired - Fee Related
- 1994-05-24 EP EP94890089A patent/EP0631825B1/en not_active Expired - Lifetime
- 1994-05-24 AT AT94890089T patent/ATE162738T1/en not_active IP Right Cessation
- 1994-05-24 ES ES94890089T patent/ES2115196T3/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910180A (en) * | 1955-03-07 | 1959-10-27 | Tyler Co W S | Screen deck structure |
| US3241671A (en) * | 1964-02-12 | 1966-03-22 | Herbert C Brauchla | Vibratory comb sizer |
| GB2233582A (en) * | 1989-07-13 | 1991-01-16 | Bord Na Mona | Screening apparatus |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0768123A1 (en) * | 1995-10-11 | 1997-04-16 | Ludwig Krieger Draht- Und Kunststofferzeugnisse Gmbh | Finger screen |
| US5769240A (en) * | 1995-10-11 | 1998-06-23 | Western Wire Works, Inc. | Screening systems and methods for screening particulate material |
| US5816412A (en) * | 1996-04-02 | 1998-10-06 | Western Wire Works, Inc. | Screening systems and methods for screening particulate material |
| CN1045907C (en) * | 1996-11-18 | 1999-10-27 | 孙功民 | Method for improving sizing precision of cantilever mesh gauze and cantilever mesh gauze |
| US6070737A (en) * | 1997-12-30 | 2000-06-06 | Western Wire Works, Inc. | Screening systems and methods for screening particulate material |
| GR1003651B (en) * | 2000-07-25 | 2001-08-30 | Ελληνικοιαλευκολιθοιαανωνυμοσαμεταλλευτικηαβιομηχανικηα...Α | Oscilating grid of chords |
| GB2425273A (en) * | 2005-04-22 | 2006-10-25 | Extec Screens & Crushers Ltd | Screening finger tine assembly |
| US7383957B2 (en) | 2005-04-22 | 2008-06-10 | Extec Screens & Crushers Limited | Screening finger tine assembly |
| GB2425273B (en) * | 2005-04-22 | 2008-07-02 | Extec Screens & Crushers Ltd | Screening finger tine assembly |
| WO2011003599A1 (en) * | 2009-07-07 | 2011-01-13 | Dieffenbacher Gmbh + Co. Kg | Method for cleaning a flow resistance element in a dispersion machine and device for cleaning a flow resistance element |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0631825B1 (en) | 1998-01-28 |
| ATA127793A (en) | 1995-09-15 |
| ES2115196T3 (en) | 1998-06-16 |
| ATE162738T1 (en) | 1998-02-15 |
| DE59405153D1 (en) | 1998-03-05 |
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