EP1177838A2 - Drum screen - Google Patents

Drum screen Download PDF

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Publication number
EP1177838A2
EP1177838A2 EP01110332A EP01110332A EP1177838A2 EP 1177838 A2 EP1177838 A2 EP 1177838A2 EP 01110332 A EP01110332 A EP 01110332A EP 01110332 A EP01110332 A EP 01110332A EP 1177838 A2 EP1177838 A2 EP 1177838A2
Authority
EP
European Patent Office
Prior art keywords
drum
strips
holes
sieve
jacket
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
EP01110332A
Other languages
German (de)
French (fr)
Other versions
EP1177838B1 (en
EP1177838A3 (en
Inventor
Rudolf Pretzler Dipl.-Ing.
Josef Heissenberger Ing.
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.)
Heissenberger and Pretzler GmbH
Original Assignee
Heissenberger and Pretzler GmbH
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Filing date
Publication date
Application filed by Heissenberger and Pretzler GmbH filed Critical Heissenberger and Pretzler GmbH
Publication of EP1177838A2 publication Critical patent/EP1177838A2/en
Publication of EP1177838A3 publication Critical patent/EP1177838A3/en
Application granted granted Critical
Publication of EP1177838B1 publication Critical patent/EP1177838B1/en
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
    • B07B1/18—Drum screens

Definitions

  • the invention relates to a drum screen machine with at least one rotating drivable drum with perforated sieve sheet jacket.
  • drum screening machines are used for a wide variety of requirements. You will find applications for screening compost, bark mulch, chopped wood, Sand, gravel, contaminated soil, broken building rubble or residual waste.
  • the screening drums are placed in a frame together with their drive motor stored, which can also be designed to be mobile.
  • cylindrical brooms are currently used, which perforate the screen from the outside clean inside by inserting the individual bristles.
  • This cleaning technique works perfectly with sticky masses, such as wet soil, sand or moist compost.
  • the processing of residual waste leads to very often long particles, some of which fall through the sieve perforation, such as tapes, Cords, tapes etc. for wrapping the screen drum, which is due to the Covering the respective screen holes to a considerable deterioration of the Performance.
  • metallic scrapers are currently used on the outer jacket of the drum screens.
  • these externally adjustable metal wipers lead to one high wear and go hand in hand with a large noise emission, which for the Operator of the drum screen machine is often unacceptable.
  • the object of the invention is to make a drum screening machine known Design in such a way that they are particularly suitable for the screening of Residual waste is suitable.
  • this task is based on a generic Drum screening machine through the combination with the characteristic features of claim 1 solved.
  • the outside of the screen plate jacket is in Drum rails extending strips arranged, each on the circumference of the hole
  • Adjacent sieve holes are adapted and partially enclose them.
  • the hole circumference is at least partially surrounding ledges a jamming of bulky objects in the Screen plate largely prevented.
  • it is not a closed one Pipe that connects to the drum hole, causing jamming of particles in the pipe is also effectively prevented.
  • the respective Sieve holes are only partially enclosed, the cross section widens outwards compared to the perforated screen.
  • the strips can enclose the sieve holes in half of their circumference. This creates an optimal compromise between the danger of yourself Clogging of the holes due to bulky objects on the one hand and the risk of Clogging of the subsequent pipe socket by particles etc. on the other hand found.
  • At least one cutter which for Cutting through the materials wound on the outside of the drum serves.
  • Such Cutting units can be attached to one or more strips on the drum circumference be arranged.
  • the screen drum 10 shown in FIG. 1 has a screen plate jacket 12.
  • the Sieve sheet jacket 12 has a plurality of sieve holes 14, which are shown in FIG. 1 were presented in simplified form using just a few examples.
  • the sieve holes extend usually distributed evenly over the entire screen plate jacket 12.
  • the sieve holes are 14 aligned along parallel lines in the longitudinal direction to the screen plate jacket 12.
  • the drum screen has flanges 16 and 18 on the side.
  • the drum screens point free cross sections on each of their faces.
  • the storage of the drum screens and the drive are customary. Based on the detail B in Fig. 3 is too recognize that parallel to the rows of holes with holes 14 strips 20 parallel welded to each other and aligned in the longitudinal direction of the screen plate jacket 12 are.
  • the perspective representation of the detail B can in particular the shape of the strips 20 can be found in the bottom row.
  • the Lasts are made up of two alternating elements. To the one of the semi-circular cross-section enclosing the respective screen holes 14 Sheet metal parts 22 and straight connecting webs 24, the connect the semicircular shaped strip parts 22 to one another.
  • In detail B and Fig. 1 are not all holes 14 and strips 20, as they are real on the Sieve sheet jacket are shown. So this is just a simplified one Representations.
  • the strips 20 are in a corresponding sectional view shown. In particular, it can be clearly seen here how the strips 20 are vertical protrude from the screen plate jacket 12. Inside the sieve sheet jacket is here present embodiment variant a firmly connected to the screen plate jacket 12 Shown screw 26, which is used to transport the material to be screened. However, this screw 26 is not mandatory, since the transport of the Good to be screened also by appropriately tilting the screen plate jacket 12 can be achieved.
  • a cutting unit with which around the screen plate jacket 12 coiled cords, tapes, tapes etc. along the length Drum can be cut through, so that they continue to rotate Drum fall off from this.
  • These cutting units can be similar, for example the cutting units of bar mowers, so-called finger bars, mulch bars or double knife bar. The operation of the cutting units can be done by simply folding the gate controls if required.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Eye Examination Apparatus (AREA)
  • Pulleys (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Liquid Crystal Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A drum sieve (10) machine has at least one rotating drum with a perforated sieve plate (12) that can be driven. Outside on the sieve plate sleeve are located strips extending in the longitudinal direction of the drum which are each matched to the hole circumference of neighboring sieve holes (14) and partially surround these. The strips surround the sieve holes each by half the hole circumference. A cutting mechanism is provided for the cutting through of material wrapped outside on the drum. A cutting mechanism can be located on one or more strips.

Description

Die Erfindung betrifft eine Trommelsiebmaschine mit mindestens einer rotierend antreibbaren Trommel mit gelochtem Siebblechmantel.The invention relates to a drum screen machine with at least one rotating drivable drum with perforated sieve sheet jacket.

Derartige Trommelsiebmaschinen werden für verschiedenste Anforderungen eingesetzt. Sie finden Anwendungen zur Siebung von Kompost, Rindenmulch, Holzhäcksel, Sand, Kies, kontaminierten Böden, gebrochenem Bauschutt oder Restmüll.Such drum screening machines are used for a wide variety of requirements. You will find applications for screening compost, bark mulch, chopped wood, Sand, gravel, contaminated soil, broken building rubble or residual waste.

Die Siebtrommeln werden zusammen mit ihrem Antriebsmotor in einem Gestell gelagert, das auch fahrbar ausgestaltet sein kann. Zur Reinigung der Siebtrommeln werden derzeit zylindrische Besen verwendet, welche die Sieblochung von außen nach innen durch Einstecken der einzelnen Borsten reinigen. Diese Reinigungstechnik funktioniert einwandfrei bei klebrigen Massen, wie nassem Erdreich, Sand oder feuchtem Kompost. Dagegen führt die Verarbeitung von Restmüll, bei dem sehr häufig lange Partikel, welche teilweise durch die Sieblochung fallen, wie Tonbänder, Schnüre, Bänder etc. zum Einwickeln der Siebtrommel, was aufgrund des Abdeckens der jeweiligen Sieblöcher zu einer erheblichen Verschlechterung der Siebleistung führt. Ist eine Siebtrommel für einen derartigen Einsatz vorgesehen, werden derzeit metallische Abstreifer am Außenmantel der Trommelsiebe verwendet. Diese von außen anstellbaren metallischen Abstreifer führen aber zu einem hohen Verschleiß und gehen einher mit einer großen Lärmemission, die für den Betreiber der Trommelsiebmaschine häufig nicht hinnehmbar ist.The screening drums are placed in a frame together with their drive motor stored, which can also be designed to be mobile. For cleaning the sieve drums cylindrical brooms are currently used, which perforate the screen from the outside clean inside by inserting the individual bristles. This cleaning technique works perfectly with sticky masses, such as wet soil, sand or moist compost. On the other hand, the processing of residual waste leads to very often long particles, some of which fall through the sieve perforation, such as tapes, Cords, tapes etc. for wrapping the screen drum, which is due to the Covering the respective screen holes to a considerable deterioration of the Performance. If a screening drum is provided for such an application, metallic scrapers are currently used on the outer jacket of the drum screens. However, these externally adjustable metal wipers lead to one high wear and go hand in hand with a large noise emission, which for the Operator of the drum screen machine is often unacceptable.

Es ist bereits auch eine Trommelsiebmaschine mit mindestens einer rotierend antreibbaren Trommel mit gelochtem Siebblechmantel bekannt, bei dem außen auf dem Mantel die Sieblochungen umgebende Rohrstutzen aufgeschweißt sind. Diese Konstruktion weist im wesentlichen zwei Nachteile auf. Zum einen können sich im zylindrischen Rohr Partikel verklemmen. Zum anderen werden wickelfähige Teile, wie Bänder, Schnüre, Seile etc. zwischen den Rohrstutzen aufgewickelt. Diese aufgewickelten Teile können bei der Ausführung aber nicht mehr über einen außen am Mantel angeordneten metallischen Abstreifer entfernt werden. Der Vorteil der angesetzten Rohrstutzen gegenüber den einfachen Lochblechen liegt aber bei der Verarbeitung von Restmüll darin, daß die glatten Rohrwände ein Einhaken von sperrigen Gegenständen in den Löchern des Lochbleches verhindern.It is also a drum screen machine with at least one rotatingly drivable Drum with perforated sieve sheet jacket known, on the outside the pipe holes surrounding the perforations are welded onto the jacket. This Construction has two major drawbacks. On the one hand, in jam cylindrical tube particles. On the other hand, windable parts, such as tapes, cords, ropes etc. wound between the pipe sockets. This wound up However, parts can no longer be installed on the outside of the Cladding arranged metallic wipers can be removed. The advantage of the scheduled Pipe socket compared to the simple perforated sheets lies in the processing of residual garbage in that the smooth tube walls are a bulky hook Prevent objects in the holes in the perforated plate.

Die Aufgabe der Erfindung besteht darin, eine Trommelsiebmaschine bekannter Bauform derart weiterzubilden, daß sie sich insbesondere auch für das Sieben von Restmüll eignet.The object of the invention is to make a drum screening machine known Design in such a way that they are particularly suitable for the screening of Residual waste is suitable.

Erfindungsgemäß wird diese Aufgabe ausgehend von einer gattungsgemäßen Trommelsiebmaschine durch die Kombination mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Demnach sind außen auf dem Siebblechmantel sich in Trommellängsrichtung erstreckende Leisten angeordnet, die jeweils an den Lochumfang benachbarter Sieblöcher angepaßt sind und diese jeweils teilweise umschließen. Bei diesem Konstruktionsprinzip wird durch die den Lochumfang zumindest teilweise umgebenden Leisten ein Verhaken von sperrigen Gegenständen im Siebblech weitgehend verhindert. Andererseits handelt es sich nicht um ein geschlossenes Rohr, das sich an das Trommelloch anschließt, so daß ein Verklemmen von Partikeln im Rohr ebenfalls wirksam verhindert wird. Dadurch daß die jeweiligen Sieblöcher nur teilweise umschlossen sind, erweitert sich der Querschnitt nach außen gegenüber der Sieblochung erheblich. In den sich an den Hauptanspruch anschließenden Unteransprüchen sind vorteilhafte Ausführungsvarianten der Erfindung wiedergegeben.According to the invention, this task is based on a generic Drum screening machine through the combination with the characteristic features of claim 1 solved. Accordingly, the outside of the screen plate jacket is in Drum rails extending strips arranged, each on the circumference of the hole Adjacent sieve holes are adapted and partially enclose them. With this design principle, the hole circumference is at least partially surrounding ledges a jamming of bulky objects in the Screen plate largely prevented. On the other hand, it is not a closed one Pipe that connects to the drum hole, causing jamming of particles in the pipe is also effectively prevented. Because the respective Sieve holes are only partially enclosed, the cross section widens outwards compared to the perforated screen. In to the main claim subsequent subclaims are advantageous design variants reproduced the invention.

So können die Leisten die Sieblöcher jeweils zur Hälfte ihres Lochumfanges umschließen. Hierdurch wird ein optimaler Kompromiss zwischen der Gefahr des sich Zusetzens der Löcher durch sperrige Gegenstände einerseits und der Gefahr des Zusetzens der sich anschließenden Rohrstutzen durch Partikel etc. andererseits gefunden.In this way, the strips can enclose the sieve holes in half of their circumference. This creates an optimal compromise between the danger of yourself Clogging of the holes due to bulky objects on the one hand and the risk of Clogging of the subsequent pipe socket by particles etc. on the other hand found.

Auch sich auf die Trommel aufwickelnde Bänder, Schnüre etc. können in einfacher Art und Weise vom Trommelmantel entfernt werden. Hierzu ist gemäß einer bevorzugten Ausführungsvariante mindestens ein Schneidwerk vorgesehen, das zum Durchschneiden der auf der Trommel außen aufgewickelten Materialien dient. Derartige Schneidwerke können an einer oder mehreren Leisten auf Trommelumfang angeordnet sein.Even tapes, cords, etc. that wind up on the drum can be done more easily Removed from the drum jacket. According to a preferred one Embodiment variant provided at least one cutter, which for Cutting through the materials wound on the outside of the drum serves. such Cutting units can be attached to one or more strips on the drum circumference be arranged.

Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

Fig. 1:
eine teilweise perspektivische Darstellung eines Siebblechmantels einer Trommelsiebmaschine nach einer Ausführungsform der vorliegenden Erfindung,
Fig. 2:
einen Querschnitt durch den Siebmantel gemäß Fig. 1,
Fig. 3:
das Detail B aus Fig. 1 und
Fig. 4:
das Detail A aus Fig. 2.
Details and advantages of the invention are explained in more detail with reference to an embodiment shown in the drawing. Show it:
Fig. 1:
FIG. 2 shows a partial perspective illustration of a screen plate jacket of a drum screening machine according to an embodiment of the present invention,
Fig. 2:
2 shows a cross section through the screen jacket according to FIG. 1,
Fig. 3:
the detail B from Fig. 1 and
Fig. 4:
detail A from FIG. 2.

Die in Fig. 1 dargestellte Siebtrommel 10 weist einen Siebblechmantel 12 auf. Der Siebblechmantel 12 weist eine Vielzahl von Sieblöchern 14 auf, die in der Fig. 1 vereinfacht nur anhand einiger Beispiele dargestellt wurden. Die Sieblöcher erstrecken sich üblicher Weise gleichmäßig verteilt über den gesamten Siebblechmantel 12. In der hier dargestellten Ausführungsvariante sind die Sieblöcher 14 entlang paralleler Linien in Längsrichtung zum Siebblechmantel 12 ausgerichtet. Seitlich weist das Trommelsieb Flansche 16 und 18 auf. Die Trommelsiebe weisen an ihren Stirnseiten jeweils freie Querschnitte auf. Die Lagerung der Trommelsiebe und der Antrieb sind bauüblich ausgeführt. Anhand des Details B in Fig. 3 ist zu erkennen, daß parallel zu den Sieblochreihen mit Löchern 14 Leisten 20 parallel zueinander und in Längsrichtung des Siebblechmantels 12 ausgerichtet aufgeschweißt sind. Der perspektivischen Darstellung des Details B kann insbesondere in der untersten Reihe die Formgebung der Leisten 20 entnommen werden. Die Leisten sind aus zwei sich alternierend wiederholenden Elementen gebildet. Zum einen aus den die jeweiligen Sieblöcher 14 umschließenden im Querschnitt halbkreisförmigen Blechteilen 22 und gerade verlaufenden Verbindungsstegen 24, die die halbkreisförmig geformten Leistenteile 22 miteinander verbinden. Im Detail B und der Fig. 1 sind nicht sämtlich Löcher 14 und Leisten 20, wie sie real auf dem Siebblechmantel vorhanden sind, dargestellt. Es handelt sich hier also nur um vereinfachte Darstellungen.The screen drum 10 shown in FIG. 1 has a screen plate jacket 12. The Sieve sheet jacket 12 has a plurality of sieve holes 14, which are shown in FIG. 1 were presented in simplified form using just a few examples. The sieve holes extend usually distributed evenly over the entire screen plate jacket 12. In the embodiment variant shown here, the sieve holes are 14 aligned along parallel lines in the longitudinal direction to the screen plate jacket 12. The drum screen has flanges 16 and 18 on the side. The drum screens point free cross sections on each of their faces. The storage of the drum screens and the drive are customary. Based on the detail B in Fig. 3 is too recognize that parallel to the rows of holes with holes 14 strips 20 parallel welded to each other and aligned in the longitudinal direction of the screen plate jacket 12 are. The perspective representation of the detail B can in particular the shape of the strips 20 can be found in the bottom row. The Lasts are made up of two alternating elements. To the one of the semi-circular cross-section enclosing the respective screen holes 14 Sheet metal parts 22 and straight connecting webs 24, the connect the semicircular shaped strip parts 22 to one another. In detail B and Fig. 1 are not all holes 14 and strips 20, as they are real on the Sieve sheet jacket are shown. So this is just a simplified one Representations.

In den Figuren 2 und 4 sind die Leisten 20 in entsprechender Schnittdarstellung gezeigt. Hier ist insbesondere deutlich zu erkennen, wie die Leisten 20 senkrecht vom Siebblechmantel 12 abstehen. Innerhalb des Siebblechmantels ist bei der hier vorliegenden Ausführungsvariante eine fest mit dem Siebblechmantel 12 verbundene Schnecke 26 dargestellt, die zum Transport des zu siebenden Gutes dient. Diese Schnecke 26 ist jedoch nicht zwingend vorzusehen, da der Transport des Siebgutes auch durch ein entsprechendes Schrägstellen des Siebblechmantels 12 erreicht werden kann.In Figures 2 and 4, the strips 20 are in a corresponding sectional view shown. In particular, it can be clearly seen here how the strips 20 are vertical protrude from the screen plate jacket 12. Inside the sieve sheet jacket is here present embodiment variant a firmly connected to the screen plate jacket 12 Shown screw 26, which is used to transport the material to be screened. However, this screw 26 is not mandatory, since the transport of the Good to be screened also by appropriately tilting the screen plate jacket 12 can be achieved.

Nicht näher dargestellt in den Figuren ist ein Schneidwerk, mit dem um den Siebblechmantel 12 gewickelte Schnüre, Bänder, Tonbänder etc. längs entlang der Trommel durchgeschnitten werden können, so daß sie bei weiterer Rotation der Trommel von dieser abfallen. Diese Schneidwerke können beispielsweise ähnlich den Schneidwerken von Balkenmähwerken, sogenannten Fingerbalken, Mulchbalken oder Doppelmesserbalken ausgeführt sein. Die Betätigung der Schneidwerke kann bei Bedarf durch einfach zuklappbare Kulissensteuerungen erfolgen.Not shown in the figures is a cutting unit with which around the screen plate jacket 12 coiled cords, tapes, tapes etc. along the length Drum can be cut through, so that they continue to rotate Drum fall off from this. These cutting units can be similar, for example the cutting units of bar mowers, so-called finger bars, mulch bars or double knife bar. The operation of the cutting units can be done by simply folding the gate controls if required.

Claims (4)

Trommelsiebmaschine mit mindestens einer rotierend antreibbaren Trommel mit gelochtem Siebblechmantel,
dadurch gekennzeichnet, daß außen auf dem Siebblechmantel sich in Trommellängsrichtung erstrekkende Leisten angeordnet sind, die jeweils an den Lochumfang benachbarter Sieblöcher angepaßt sind und diese jeweils teilweise umschließen.Drum screening machine with at least one rotating drivable drum with perforated sheet metal jacket,
characterized in that strips extending in the longitudinal direction of the drum are arranged on the outside of the perforated plate jacket, which are each adapted to the hole circumference of adjacent sieve holes and partially enclose them. Trommelsiebmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Leisten die Sieblöcher jeweils zur Hälfte ihres Lochumfangs umschließen. Drum screen machine according to claim 1, characterized in that the strips enclose the screen holes in each case half of their hole circumference. Trommelsiebmaschine nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß ein Schneidwerk vorgesehen ist zum Durchschneiden von auf der Trommel außen aufgewickeltem Material.Drum screen machine according to claim 1 or claim 2, characterized in that a cutting device is provided for cutting through material wound on the outside of the drum. Trommelsiebmaschine nach Anspruch 3, dadurch gekennzeichnet, daß ein Schneidwerk jeweils an einer oder mehreren Leisten angeordnet sein kann.Drum screen machine according to claim 3, characterized in that a cutting unit can be arranged on one or more strips.
EP01110332A 2000-07-31 2001-04-26 Drum screen Expired - Lifetime EP1177838B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20013174U 2000-07-31
DE20013174U DE20013174U1 (en) 2000-07-31 2000-07-31 Drum screening machine

Publications (3)

Publication Number Publication Date
EP1177838A2 true EP1177838A2 (en) 2002-02-06
EP1177838A3 EP1177838A3 (en) 2002-08-14
EP1177838B1 EP1177838B1 (en) 2004-06-30

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EP01110332A Expired - Lifetime EP1177838B1 (en) 2000-07-31 2001-04-26 Drum screen

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EP (1) EP1177838B1 (en)
AT (1) ATE270158T1 (en)
DE (2) DE20013174U1 (en)
DK (1) DK1177838T3 (en)
ES (1) ES2223678T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071544A (en) * 1988-10-14 1991-12-10 Manlio Cerroni Filtering device for solid wastes
US5373948A (en) * 1992-09-16 1994-12-20 Nippon Jiryoku Senko, Co., Ltd. Device for separating long-size materials
EP0896837A2 (en) * 1997-08-13 1999-02-17 Metaalbedrijf Busschers B.V. Arrangement for sorting garbage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071544A (en) * 1988-10-14 1991-12-10 Manlio Cerroni Filtering device for solid wastes
US5373948A (en) * 1992-09-16 1994-12-20 Nippon Jiryoku Senko, Co., Ltd. Device for separating long-size materials
EP0896837A2 (en) * 1997-08-13 1999-02-17 Metaalbedrijf Busschers B.V. Arrangement for sorting garbage

Also Published As

Publication number Publication date
DE20013174U1 (en) 2001-12-06
DE50102716D1 (en) 2004-08-05
DK1177838T3 (en) 2004-09-27
ATE270158T1 (en) 2004-07-15
EP1177838B1 (en) 2004-06-30
EP1177838A3 (en) 2002-08-14
ES2223678T3 (en) 2005-03-01

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