EP0766601A1 - Single-cylinder crusher - Google Patents

Single-cylinder crusher

Info

Publication number
EP0766601A1
EP0766601A1 EP95923117A EP95923117A EP0766601A1 EP 0766601 A1 EP0766601 A1 EP 0766601A1 EP 95923117 A EP95923117 A EP 95923117A EP 95923117 A EP95923117 A EP 95923117A EP 0766601 A1 EP0766601 A1 EP 0766601A1
Authority
EP
European Patent Office
Prior art keywords
roller
rocker
ribs
relative movement
profiling
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
EP95923117A
Other languages
German (de)
French (fr)
Other versions
EP0766601B1 (en
Inventor
Christian Rainer
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.)
Astam Allgemeiner Stahl- Anlagen- und Maschinenbau GmbH
Original Assignee
Astam Allgemeiner Stahl- Anlagen- und 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 Astam Allgemeiner Stahl- Anlagen- und Maschinenbau GmbH filed Critical Astam Allgemeiner Stahl- Anlagen- und Maschinenbau GmbH
Publication of EP0766601A1 publication Critical patent/EP0766601A1/en
Application granted granted Critical
Publication of EP0766601B1 publication Critical patent/EP0766601B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B02C4/12—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate

Definitions

  • the invention relates to a single-roll crusher for comminuting solid bodies with a rotatably mounted, rotationally driven roller and with an associated rocker as crushing tools, at least the surface of the roller facing the rocker being profiled, the profiling being arranged by ribs and between them Grooves is formed, is at least partially inclined to the direction of the relative movement between roller and rocker.
  • a roller mill is known from EP 0 563 564 A2.
  • the known roller mill for comminuting brittle regrind has two oppositely rotating grinding rollers which are pressed against one another at high pressure and each have a roller jacket made of wear-resistant chilled cast iron with surface profiles. So that the rolls have a particularly good pull-in capacity and a high wear resistance, profiles in the form of welding beads made of wear-resistant build-up welding material are applied to the surface of the roll shell.
  • the invention is based on the object of specifying a single-roll crusher of the type mentioned at the outset which is particularly suitable for fine comminution and with which, with good use of the energy, predominantly comminuted material having a grain shape is obtained which is approximately cubic or spherical, that is to say no length extension particularly pronounced in one direction Has.
  • this is achieved in that the profiling of the roller and, if applicable, that of the rocker is formed by bodies made of hard material inserted therein and that the roller consists of a plurality of disks arranged side by side in the axial direction, each disk having ribs and grooves on its circumference to form the Has profiling.
  • the desired effect is achieved because of the particularly structured At least on the surface of the roller, which is one of the two tools effecting the comminution, such an interaction arises that not only does a movement of the solid particles to be comminuted occur perpendicular to the moving roller, but also a movement component occurs perpendicular to the direction of movement of the relative movement.
  • the movement component is achieved by structuring (profiling) the surface of the roller and preferably also that of the rocker arm. This movement component transversely to the direction of movement of the roller leads to the rolling movement of the grains in the crushing chamber and thus to a rounding thereof. This substantially improves the grain shape in the direction of cubicity and thus avoids the disadvantage of the known comminuting device mentioned above.
  • the angle of the profiling to the direction of the relative movement between the roller and the rocker can be selected depending on the properties of the material to be shredded and can be determined taking into account the other operating conditions of the single-roll crusher. It is preferred in the context of the invention that the profiling of the roller and / or that of the rocker is divided into sections with the opposite orientation to the direction of the relative movement between roller and rocker. It can be provided that the profiling in the different sections includes the same, but opposite angles with the direction of the relative movement between roller and rocker. In certain applications, an embodiment has proven itself in which the profiling in the different sections includes angles of different sizes and opposite angles with the direction of the relative movement between roller and rocker.
  • the profiling of the roller and, if appropriate, that of the rocker can be seen in a zigzag or serpentine shape transverse to the direction of the relative movement between the roller and the rocker.
  • Fig. 3 in plan view a tool body of the rocker (seen essentially from the axis of the roller) and
  • a comminution device which is intended in particular for the fine comminution of minerals (rock) and is designed as a single-roll crusher consists of a rotatably driven and rotatably driven roller 1 about an axis 3 and a rocker 2 assigned to the outer circumference of the roller 1, for example is pivotally mounted in the frame of the comminution device by a hydraulic drive and is loaded firmly or resiliently (resiliently) onto the roller 1.
  • Ribs 5 are provided on the outer circumference of the roller 1 and are provided between these grooves 6.
  • the ribs 5 and the grooves 6 can be evenly distributed on the roller 1 (over the circumference).
  • the roller 1 is composed of several disks 4, each of which carries a section of the ribs 5 and the grooves 6 on its outer circumference.
  • the ribs 5 and the grooves 6 can also run such that they have areas in which they run parallel to the direction of the relative movement (arrow 10) between the roller 1 and the rocker 2.
  • the ribs 5 and the grooves 6 can also run in a serpentine manner.
  • the tool bodies 11 inserted into the rocker 2 also have a structuring on their active surface facing the roller 1, which is composed of ribs or cutting edges 13 and grooves 14 arranged between them.
  • the sections 15 and 16 in which the ribs
  • roller 14 can in the direction of the axis of rotation 3 of the roller 1, i.e. seen transversely to the direction of the relative movement (arrow 10) between roller 1 and rocker 2 have the same width as the sections 7 and 8 of the ribs 5 on the roller 1.
  • the ribs 5 and the grooves 6 of the roller 1 are wider than the ribs 13 and the grooves 14 on the rocker arm 2.
  • the ribs 13 and the grooves 14 can also be arranged unevenly distributed.
  • the ribs 13 and the grooves 14 can also run so that they have areas in which they run parallel to the relative movement between the roller 1 and the rocker 2.
  • curved ribs 5 and 13 are also advantageous. In certain applications, an uneven distribution of the ribs 5 and grooves 6 on the roller 1 and / or the ribs 13 and the grooves 14 on the rocker 2 can bring better results.
  • the ribs 5 and the ribs 13 are formed in that strips made of hard material are inserted into the disks 4 of the roller 1 and into the rocker 2 or the tool body 11 thereof. It is possible to form the various structural elements (ie the ribs 5 or 13 on the one hand and the carrier material on the other hand) from different materials, so that there is a self-resharpening effect.
  • angles ⁇ and ⁇ are chosen depending on the properties of the material to be shredded.
  • an angle ⁇ of the order of 10 to 40 ° has proven successful.
  • the angles ⁇ of the ribs 13 on the tool bodies 11 of the rocker arm 2 are, for example, 40 to 80 °.
  • angles ⁇ of the order of 10 to 40 ° are preferred for the crushing of rocks, the best results being achieved at 15 to 30 ° in most cases.
  • the angles ⁇ can be in the range from 40 to 80 °, preferably from 50 to 70 °.
  • the height H1 of the ribs 5 of the roller 1 and the pitch T1, the height H2 of the ribs 13 and the pitch T2 T3 of the ribs 13 are selected depending on the material to be cut and on the desired product grain belt.
  • flank angles ⁇ l and ⁇ 2 are also determined according to these parameters and can, for example, have values from -25 ° to + 25 °.
  • the flank angles ⁇ l and ⁇ 2 are variable.
  • the gap "S" between the roller 1 and the rocker 2 can be adjusted, if necessary, since it is also decisive for the achievable product grain belt.
  • the invention can be represented as follows, for example:
  • a comminution device designed as a single-roll crusher with a rotationally driven roller 1 and a rocker arm 2 assigned to it has a profiling on the mutually facing surfaces of the roller 1 and rocker arm 2.
  • the profiles formed by ribs 5, 13 are inclined to the direction (arrow 10) of the relative movement between roller 1 and rocker 2, so that in addition to the radial movement component, there is an axial movement component which promotes the cubicity of the grain shape of the reduction products.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The proposed crushing device is designed as a single-cylinder crusher and is provided with a rotary-driven cylinder (1) and an associated rocker arm (2). Contours are provided on the opposing surfaces of the cylinder (1) and rocker arm (2); these contours are formed by ridges and are inclined in relation to the direction (arrow 10) of motion of the cylinder (1) relative to the rocker arm (2), so that in addition to the radial component of motion, an axial component is produced which promotes the cubic shape of the crushed product grains.

Description

EinwalzenbrecherSingle roll crusher
Die Erfindung betrifft einen Einwalzenbrecher zum Zerkleinern von Festkörpern mit einer drehbar gelagerten, drehangetriebenen Walze und mit einer ihr zugeordneten Schwinge als Zerkleinerungs- Werkzeuge, wobei wenigstens die der Schwinge zugekehrte Fläche der Walze profiliert ist, wobei die Profilierung, die durch Rippen und zwischen diesen angeordnete Nuten gebildet ist, wenigstens bereichsweise zur Richtung der Relativbewegung zwischen Walze und Schwinge geneigt ist.The invention relates to a single-roll crusher for comminuting solid bodies with a rotatably mounted, rotationally driven roller and with an associated rocker as crushing tools, at least the surface of the roller facing the rocker being profiled, the profiling being arranged by ribs and between them Grooves is formed, is at least partially inclined to the direction of the relative movement between roller and rocker.
Bei den bekannten Zerkleinerungsvorrichtungen ergeben sich oft Probleme, da das zerkleinerte Gut eine langgestreckte Kornform besitzt, die in vielen Anwendungsfällen weniger gut geeignet ist als eine angenähert kubische Form des Korns, d.h. eine Form des Koms, die keine besonders ausge¬ prägte Längenerstreckung in einer Richtung besitzt.Problems often arise with the known comminution devices, since the comminuted material has an elongated grain shape, which in many applications is less suitable than an approximately cubic shape of the grain, i.e. a form of the come which has no particularly pronounced length extension in one direction.
Aus der EP 0 563 564 A2 ist eine Walzenmühle bekannt. Die bekannte Walzenmühle zur Zer- kleinerung von sprödem Mahlgut besitzt zwei gegensinnig umlaufende, mit hohem Druck gegen¬ einander gepreßte Mahlwalzen, die je einen Oberflächenprofilierungen aufweisenden Walzenmantel aus verschleißfestem Hartguß aufweisen. Damit die Walzen ein besonders gutes Einzugsvermögen und eine hohe Verschleißfestigkeit aufweisen, sind auf die Oberfläche des Walzenmantels Profilie¬ rungen in Form von Schweißraupen aus verschleißfestem Auftragschweißwerkstoff aufgebracht.A roller mill is known from EP 0 563 564 A2. The known roller mill for comminuting brittle regrind has two oppositely rotating grinding rollers which are pressed against one another at high pressure and each have a roller jacket made of wear-resistant chilled cast iron with surface profiles. So that the rolls have a particularly good pull-in capacity and a high wear resistance, profiles in the form of welding beads made of wear-resistant build-up welding material are applied to the surface of the roll shell.
Der Erfindung liegt die Aufgabe zugrunde, einen insbsondere zur Feinzerkleinerung geeigneten Einwalzenbrecher der eingangs genannten Gattung anzugeben, mit dem unter guter Ausnutzung der Energie überwiegend zerkleinertes Gut mit einer Kornform erhalten wird, die angenähert kubisch oder kugelförmig ist, also keine in einer Richtung besonders ausgeprägte Längenerstreckung hat.The invention is based on the object of specifying a single-roll crusher of the type mentioned at the outset which is particularly suitable for fine comminution and with which, with good use of the energy, predominantly comminuted material having a grain shape is obtained which is approximately cubic or spherical, that is to say no length extension particularly pronounced in one direction Has.
Erfindungsgemäß wird dies dadurch erreicht, daß die Profilierung der Walze und gegebenenfalls die der Schwinge durch in sie eingesetzte Körper aus Hartwerkstoff gebildet ist und daß die Walze aus mehreren in Achsrichtung nebeneinander angeordneten Scheiben besteht, wobei jede Scheibe an ihrem Umfang Rippen und Nuten zur Bildung der Profilierung aufweist.According to the invention, this is achieved in that the profiling of the roller and, if applicable, that of the rocker is formed by bodies made of hard material inserted therein and that the roller consists of a plurality of disks arranged side by side in the axial direction, each disk having ribs and grooves on its circumference to form the Has profiling.
Mit der erfindungsgemäßen Vorrichtung wird eine besonders günstige Ausnutzung der für das Herbeiführen der Relativbewegung zwischen den Werkzeugflächen (Schwinge-Walze) aufge¬ wendeten Energie und eine überwiegend spaltende Zerkleinerung unter Ausnützung der geringen Zugfestigkeit der Mineralkörner erreicht und ein gewünschtes Korn mit angenähert "kubischer" Gestalt erzielt.With the device according to the invention, a particularly favorable utilization of the energy used to bring about the relative movement between the tool surfaces (rocker roller) and a predominantly splitting comminution using the low tensile strength of the mineral grains are achieved and a desired grain with an approximately "cubic" shape achieved.
Bei der Erfindung wird der gewünschte Effekt erreicht, weil durch die besonders strukturierte Oberfläche wenigstens der Walze, die eines der beiden die Zerkleinerung bewirkenden Werkzeuge ist, eine solche Wechselwirkung entsteht, daß nicht nur eine Bewegung der zu zerkleinernden Feststoffkörner senkrecht zur bewegten Walze entsteht, sondern auch eine Bewegungskomponente senkrecht zur Bewegungsrichtung der Relativbewegung auftritt. Die Bewegungskomponente wird beim erfindungsgemäßen Einwalzenbrecher durch die Strukturierung (Profilierung) der Oberfläche der Walze und bevorzugt auch eine solche der Schwinge erreicht. Diese Bewegungskomponente quer zur Bewegungsrichtung der Walze führt zur querrollenden Bewegung der Körner im Brech¬ raum und damit zu einer Rundung derselben. Dadurch wird die Kornform im wesentlichen in Richtung Kubizität verbessert und damit der Nachteil der oben erwähnten, bekannten Zerkleine- ruπgsvorrichtung vermieden.In the invention, the desired effect is achieved because of the particularly structured At least on the surface of the roller, which is one of the two tools effecting the comminution, such an interaction arises that not only does a movement of the solid particles to be comminuted occur perpendicular to the moving roller, but also a movement component occurs perpendicular to the direction of movement of the relative movement. In the single roller crusher according to the invention, the movement component is achieved by structuring (profiling) the surface of the roller and preferably also that of the rocker arm. This movement component transversely to the direction of movement of the roller leads to the rolling movement of the grains in the crushing chamber and thus to a rounding thereof. This substantially improves the grain shape in the direction of cubicity and thus avoids the disadvantage of the known comminuting device mentioned above.
Bevorzugte und vorteilhafte Ausführungsformen der efindungsgemäßen Vorrichtung sind Gegen¬ stand der Unteransprüche.Preferred and advantageous embodiments of the device according to the invention are the subject of the dependent claims.
Die Winkel der Profilierung zur Richtung der Relativbewegung zwischen der Walze und der Schwinge können je nach den Eigenschaften des zu zerkleinernden Werkstoffes gewählt und unter Berücksichtigung der übrigen Betriebsbedingungen des Einwalzenbrechers festgelegt werden. Bevorzugt ist dabei im Rahmen der Erfindung, daß die Profilierung der Walze und/oder die der Schwinge in Abschnitte mit entgegengesetzter Ausrichtung zur Richtung der Relativbewegung zwischen Walze und Schwinge unterteilt ist. Dabei kann vorgesehen sein, daß die Profilierung in den verschiedenen Abschnitten mit der Richtung der Relativbewegung zwischen Walze und Schwinge gleich große, jedoch entgegengesetzte Winkel einschließt. In bestimmten Anwendungs¬ fällen bewährt sich eine Ausführungsform, bei der die Profilierung in den verschiedenen Ab¬ schnitten mit der Richtung der Relativbewegung zwischen Walze und Schwinge verschieden große und entgegengesetzte Winkel einschließt.The angle of the profiling to the direction of the relative movement between the roller and the rocker can be selected depending on the properties of the material to be shredded and can be determined taking into account the other operating conditions of the single-roll crusher. It is preferred in the context of the invention that the profiling of the roller and / or that of the rocker is divided into sections with the opposite orientation to the direction of the relative movement between roller and rocker. It can be provided that the profiling in the different sections includes the same, but opposite angles with the direction of the relative movement between roller and rocker. In certain applications, an embodiment has proven itself in which the profiling in the different sections includes angles of different sizes and opposite angles with the direction of the relative movement between roller and rocker.
In der Praxis kann die Profilierung der Walze und gegebenenfalls die der Schwinge quer zur Richtung der Relativbewegung zwischen Walze und Schwinge gesehen zickzack-förmig oder schlangenlinienförmig verlaufen.In practice, the profiling of the roller and, if appropriate, that of the rocker can be seen in a zigzag or serpentine shape transverse to the direction of the relative movement between the roller and the rocker.
All diese bevorzugten Ausgestaltungsmöglichkeiten verbessern die Wirkung des erfindungsgemäßen Einwalzenbrechers, weil das Zerkleinern von Mineralstoffen oder anderen Feststoffen mit einem sehr engen Produktkornband verbessert, der Feiπstkornanteil weiter minimiert, und eine günstigere Energieverwertung und ein besseres Ausbringen gewährleistet wird. Es versteht sich, daß die gute Kornform der Produkte auch über eine mehrstufige Ausführung oder eine Zwillingsausführuπg bei geringer Bauhöhe und entsprechender Durchsatzleistung möglich ist. Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus der nachstehenden Beschrei¬ bung, in der auf die angeschlossene Zeichnung Bezug genommen wird, in welcher schematisch ein Ausführungsbeispiel der Erfindung dargestellt ist. Es zeigtAll of these preferred design options improve the effect of the single-roll crusher according to the invention, because the crushing of minerals or other solids with a very narrow product grain belt improves, the fine grain fraction is further minimized, and more favorable energy utilization and better output are guaranteed. It goes without saying that the good grain shape of the products is also possible via a multi-stage version or a twin version with a low overall height and corresponding throughput. Further details and features of the invention result from the following description, in which reference is made to the attached drawing, in which an embodiment of the invention is shown schematically. It shows
Fig. 1 einen Einwalzenbrecher in Achsrichtung der Walze gesehen,1 seen a single roller crusher in the axial direction of the roller,
Fig. 2 unter Weglassen der Schwinge eine Draufsicht auf die Walze senkrecht zur Achse (schema¬ tisiert),2, omitting the rocker, a top view of the roller perpendicular to the axis (schematized),
Fig. 3 in Draufsicht einen Werkzeugkörper der Schwinge (im wesentlichen von der Achse der Walze aus gesehen) undFig. 3 in plan view a tool body of the rocker (seen essentially from the axis of the roller) and
Fig. 4 schematisiert einen Schnitt längs der Linie IV-IV in Fig. 3.4 schematically shows a section along the line IV-IV in FIG. 3.
Eine insbesondere zum Feinzerkleinem von Mineralstoffen (Gestein) bestimmte und als Einwalzen¬ brecher ausgelegte Zerkleinerungsvorrichtung besteht im in Fig. 1 gezeigten Ausführungsbeispiel aus einer um eine Achse 3 drehbar gelagerten und drehangetriebenen Walze 1 und einer dem Außenumfang der Walze 1 zugeordneten Schwinge 2. die beispielsweise durch einen Hydraulikan¬ trieb im Gestell der Zerkleinerungsvorrichtung verschwenkbar gelagert ist und fest oder nachgiebig (federnd) auf die Walze 1 hin belastet wird.In the exemplary embodiment shown in FIG. 1, a comminution device which is intended in particular for the fine comminution of minerals (rock) and is designed as a single-roll crusher consists of a rotatably driven and rotatably driven roller 1 about an axis 3 and a rocker 2 assigned to the outer circumference of the roller 1, for example is pivotally mounted in the frame of the comminution device by a hydraulic drive and is loaded firmly or resiliently (resiliently) onto the roller 1.
Am Außenumfang der Walze 1 sind über den Umfang verteilt Rippen 5 und zwischen diesen Nuten 6 vorgesehen. Die Rippen 5 und die Nuten 6 können auf der Walze 1 (über den Umfang) gleich¬ mäßig verteilt sein.Ribs 5 are provided on the outer circumference of the roller 1 and are provided between these grooves 6. The ribs 5 and the grooves 6 can be evenly distributed on the roller 1 (over the circumference).
Wie insbesondere aus Fig. 2 ersichtlich, ist die Walze 1 aus mehreren Scheiben 4 zusammengesetzt, von denen jede an ihrem Außenumfang einen Abschnitt der Rippen 5 und der Nuten 6 trägt. Aus der Darstellung von Fig. 2 ist ersichtlich, daß die Rippen 5 zickzack-förmig verlaufen, wobei die einzelnen Abschnitte 7 und 8 der Rippen 5 mit der Richtung der Relativbewegung zwischen Walze 1 und Schwinge 2 (=Richtung der Drehung der Walze 1 gegenüber der Schwinge 2, Pfeil 10 in Fig. 1) entgegengesetzt gerichtete Winkel einschließen. Diese Winkel sind im gezeigten Ausführungs¬ beispiel gleich groß und schließen bei Blickrichtung gemäß Fig. 2 mit der Achse 3 einen Winkel α ein. Die Rippen 5 und die Nuten 6 können auch so verlaufen, daß sie Bereiche aufweisen, in welchen sie zur Richtung der Relativbewegung (Pfeil 10) zwischen Walze 1 und Schwinge 2 parallel verlaufen. Beispielsweise können die Rippen 5 und die Nuten 6 auch schlangenlinienförmig verlaufen. Auch die in die Schwinge 2 eingesetzten Werkzeugkörper 11 tragen auf ihrer der Walze 1 zu¬ gekehrten Wirkfläche eine Strukturierung, die sich aus Rippen oder Schneiden 13 und dazwischen angeordneten Nuten 14 zusammensetzt. Dabei sind die Abscnitte 15 und 16, in welchen die RippenAs can be seen in particular from FIG. 2, the roller 1 is composed of several disks 4, each of which carries a section of the ribs 5 and the grooves 6 on its outer circumference. From the representation of Fig. 2 it can be seen that the ribs 5 extend in a zigzag shape, the individual sections 7 and 8 of the ribs 5 with the direction of the relative movement between roller 1 and rocker 2 (= direction of rotation of the roller 1 with respect to Swing arm 2, arrow 10 in Fig. 1) include oppositely directed angles. In the exemplary embodiment shown, these angles are of the same size and form an angle α with the axis 3 when viewed in accordance with FIG. 2. The ribs 5 and the grooves 6 can also run such that they have areas in which they run parallel to the direction of the relative movement (arrow 10) between the roller 1 and the rocker 2. For example, the ribs 5 and the grooves 6 can also run in a serpentine manner. The tool bodies 11 inserted into the rocker 2 also have a structuring on their active surface facing the roller 1, which is composed of ribs or cutting edges 13 and grooves 14 arranged between them. Here are the sections 15 and 16, in which the ribs
13 und die zwischen ihnen angeordneten Nuten 14 jeweils zueinander parallel verlaufen, etwa so breit ausgebildet, wie die Scheiben 4, aus welchen die Walze 1 zusammengesetzt ist. Die Rippen13 and the grooves 14 arranged between them each run parallel to one another, approximately as wide as the disks 4 from which the roller 1 is composed. Ribs
14 können in Richtung der Drehachse 3 der Walze 1, d.h. quer zur Richtung der Relativbewegung (Pfeil 10) zwischen Walze 1 und Schwinge 2 gesehen die gleiche Breite wie die Abschnitte 7 und 8 der Rippen 5 an der Walze 1 haben.14 can in the direction of the axis of rotation 3 of the roller 1, i.e. seen transversely to the direction of the relative movement (arrow 10) between roller 1 and rocker 2 have the same width as the sections 7 and 8 of the ribs 5 on the roller 1.
Im gezeigten Ausführungsbeispiel sind die Rippen 5 und die Nuten 6 der Walze 1 breiter als die Rippen 13 und die Nuten 14 an der Schwinge 2.In the exemplary embodiment shown, the ribs 5 and the grooves 6 of the roller 1 are wider than the ribs 13 and the grooves 14 on the rocker arm 2.
Die Rippen 13 und die Nuten 14 können auch ungleichmäßig verteilt angeordnet sein. Die Rippen 13 und die Nuten 14 können auch so verlaufen, daß sie Bereiche aufweisen, in welchen sie zur Relativbewegung zwischen Walze 1 und Schwinge 2 parallel verlaufen.The ribs 13 and the grooves 14 can also be arranged unevenly distributed. The ribs 13 and the grooves 14 can also run so that they have areas in which they run parallel to the relative movement between the roller 1 and the rocker 2.
In bestimmten Anwendungsfällen sind auch gebogene Rippen 5 bzw. 13 vorteilhaft. In bestimmten Anwendungsfällen kann eine ungleichmäßige Verteilung der Rippen 5 und Nuten 6 auf der Walze 1 und/oder der Rippen 13 und der Nuten 14 an der Schwinge 2 bessere Ergebnisse bringen.In certain applications, curved ribs 5 and 13 are also advantageous. In certain applications, an uneven distribution of the ribs 5 and grooves 6 on the roller 1 and / or the ribs 13 and the grooves 14 on the rocker 2 can bring better results.
Der Winkel ß, den die Nuten 14 und Rippen 13 an den Werkzeugen 11 mit einer zur Richtung der Relativbewegung (Pfeil 10) Senkrechten (=parallel zur Drehachse 3) einschließen, kann gleich groß oder verschieden groß wie der Winkel α (Fig. 2) sein.The angle β which the grooves 14 and ribs 13 form on the tools 11 with a perpendicular to the direction of the relative movement (arrow 10) (= parallel to the axis of rotation 3) can be the same size or different than the angle α (FIG. 2) his.
Die Rippen 5 und die Rippen 13 sind dadurch gebildet, daß in die Scheiben 4 der Walze 1 und in die Schwinge 2 bzw. deren Werkzeugkörper 11 Leisten aus Hartstoff eingesetzt sind. Dabei besteht die Möglichkeit, die verschiedenen Strukturelemente (also die Rippen 5 bzw. 13 einerseits und den Trägerwerkstoff anderseits) aus unterschiedlichen Materialien zu bilden, so daß sich ein selbst nachschärfender Effekt ergibt.The ribs 5 and the ribs 13 are formed in that strips made of hard material are inserted into the disks 4 of the roller 1 and into the rocker 2 or the tool body 11 thereof. It is possible to form the various structural elements (ie the ribs 5 or 13 on the one hand and the carrier material on the other hand) from different materials, so that there is a self-resharpening effect.
Die Größe der Winkel α und ß wird in Abhängigkeit von den Eigenschaften des zu zerkleinernden Materials gewählt. So bewähren sich bei einem Durchmesser der Walze 1 von 300 bis 800 mm und einer Dicke der Scheiben 4 von 50 mm Winkel α der Größenordnung von 10 bis 40°. Die Winkel ß der Rippen 13 an den Werkzeugkörpern 11 der Schwinge 2 betragen in diesem Fall beispiels- weise 40 bis 80°.The size of the angles α and β is chosen depending on the properties of the material to be shredded. Thus, with a diameter of the roller 1 of 300 to 800 mm and a thickness of the disks 4 of 50 mm, an angle α of the order of 10 to 40 ° has proven successful. In this case, the angles β of the ribs 13 on the tool bodies 11 of the rocker arm 2 are, for example, 40 to 80 °.
Für den Fall der Zerkleinerung von Kalkstein können bei sonst unveränderten Abmessungen die Winkel α 20° und ß 70° betragen.In the case of crushing limestone, the dimensions can remain unchanged Angle α 20 ° and ß 70 °.
Insgesamt kann gesagt werden, daß für das Zerkleinern von Gesteinen Winkel α in der Größen¬ ordnung von 10 bis 40° bevorzugt sind, wobei in den meisten Fällen bei 15 bis 30° die besten Ergebnisse erzielt werden. Die Winkel ß können im Bereich 40 bis 80°, vorzugsweise 50 bis 70° betragen.Overall, it can be said that angles α of the order of 10 to 40 ° are preferred for the crushing of rocks, the best results being achieved at 15 to 30 ° in most cases. The angles β can be in the range from 40 to 80 °, preferably from 50 to 70 °.
Die Höhe Hl der Rippen 5 der Walze 1 sowie die Teilung Tl, die Höhe H2 der Rippen 13 und die Teilung T2 T3 der Rippen 13 wird abhängig vom zu zerteilenden Material und vom gewünschten Produktkornband gewählt.The height H1 of the ribs 5 of the roller 1 and the pitch T1, the height H2 of the ribs 13 and the pitch T2 T3 of the ribs 13 are selected depending on the material to be cut and on the desired product grain belt.
Ebenso werden die Flankenwinkel γl und γ2 (Fig. 1) nach diesen Parametern bestimmt und können beispielsweise Werte von -25° bis +25° aufweisen. Die Flankenvvinkel γl und γ2 sind aber variabel.The flank angles γl and γ2 (FIG. 1) are also determined according to these parameters and can, for example, have values from -25 ° to + 25 °. The flank angles γl and γ2 are variable.
Der Spalt "S" zwischen der Walze 1 und der Schwinge 2 ist gegebenenfalls einstellbar, da er für das erzielbare Produktkornband mit entscheidend ist.The gap "S" between the roller 1 and the rocker 2 can be adjusted, if necessary, since it is also decisive for the achievable product grain belt.
Zusammenfassend kann die Erfindung beispielsweise wie folgt dargestellt werden:In summary, the invention can be represented as follows, for example:
Eine als Einwalzenbrecher ausgebildete Zerkleinerungsvorrichtung mit einer drehangetriebenen Walze 1 und einer ihr zugeordneten Schwinge 2 weist an den einander zugekehrten Flächen der Walze 1 und Schwinge 2 eine Profilierung auf. Die von Rippen 5, 13 gebildeten Profilierungen sind zur Richtung (Pfeil 10) der Relativbewegung zwischen Walze 1 und Schwinge 2 geneigt, so daß zusätzlich zur radialen Bewegungskomponente eine die Kubizität der Kornform der Zer¬ kleinerungsprodukte fördernde axiale Bewegungskomponente entsteht. A comminution device designed as a single-roll crusher with a rotationally driven roller 1 and a rocker arm 2 assigned to it has a profiling on the mutually facing surfaces of the roller 1 and rocker arm 2. The profiles formed by ribs 5, 13 are inclined to the direction (arrow 10) of the relative movement between roller 1 and rocker 2, so that in addition to the radial movement component, there is an axial movement component which promotes the cubicity of the grain shape of the reduction products.

Claims

Patentansprüche: Claims:
1. Einwalzenbrecher zum Zerkleinern von Festkörpern mit einer drehbar gelagerten, drehange¬ triebenen Walze (1) und mit einer ihr zugeordneten Schwinge (2) als Zerkleinerungswerk- zeuge, wobei wenigstens die der Schwinge (2) zugekehrte Fläche der Walze (1) profiliert ist, wobei die Profilierung, die durch Rippen (5) und zwischen diesen angeordnete Nuten (6) gebildet ist, wenigstens bereichsweise zur Richtung (Pfeil 10) der Relativbewegung zwi¬ schen Walze (1) und Schwinge (2) geneigt ist, dadurch gekennzeichnet, daß die Profilierung der Walze (1) und gegebenenfalls die der Schwinge (2) durch in sie eingesetzte Körper (11) aus Hartwerkstoff gebildet ist und daß die Walze (1) aus mehreren in Achsrichtung neben¬ einander angeordneten Scheiben (4) besteht, wobei jede Scheibe (4) an ihrem Umfang Rippen (5) und Nuten (6) zur Bildung der Profilierung aufweist.1. Single roller crusher for comminuting solid bodies with a rotatably mounted, rotatably driven roller (1) and with an associated rocker (2) as crushing tools, at least the surface of the roller (1) facing the rocker (2) being profiled The profile, which is formed by ribs (5) and grooves (6) arranged between them, is inclined at least in regions to the direction (arrow 10) of the relative movement between roller (1) and rocker (2), characterized in that that the profiling of the roller (1) and optionally that of the rocker (2) is formed by bodies (11) inserted into it from hard material and that the roller (1) consists of several disks (4) arranged next to one another in the axial direction, wherein each disc (4) has ribs (5) and grooves (6) on its circumference to form the profile.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Profilierung der Walze (1) und/oder die der Schwinge (2) in Abschnitte (7, 8; 15, 16) mit entgegengesetzter Ausrich¬ tung zur Richtung (Pfeil 10) der Relativbewegung zwischen Walze (1) und Schwinge (2) unterteilt ist.2. Device according to claim 1, characterized in that the profiling of the roller (1) and / or that of the rocker (2) in sections (7, 8; 15, 16) with opposite direction to the direction (arrow 10) of Relative movement between roller (1) and rocker (2) is divided.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Profilierung in den ver- schiedenen Abschnitten (7, 8; 15, 16) mit der Richtung (Pfeil 10) der Relativbewegung zwischen Walze (1) und Schwinge (2) gleich große, jedoch entgegengesetzte Winkel ein¬ schließt.3. Device according to claim 2, characterized in that the profiling in the different sections (7, 8; 15, 16) with the direction (arrow 10) of the relative movement between roller (1) and rocker (2) of the same size, but includes opposite angles.
4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Profilierung in den ver- schiedenen Abschnitten (7, 8; 15, 16) mit der Richtung (Pfeil 10) der Relativbewegung zwischen Walze (1) und Schwinge (2) verschieden große und entgegengesetzte Winkel ein¬ schließt.4. The device according to claim 2, characterized in that the profiling in the different sections (7, 8; 15, 16) with the direction (arrow 10) of the relative movement between roller (1) and rocker (2) of different sizes and includes opposite angles.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Profilie- rung quer zur Richtung der Relativbewegung (Pfeil 10) zwischen Walze (1) und Schwinge5. Device according to one of claims 1 to 4, characterized in that the profiling transverse to the direction of the relative movement (arrow 10) between the roller (1) and rocker
(2) gesehen zickzack-förmig oder schlangenlinienförmig verläuft. (2) seen zigzag or serpentine.
EP95923117A 1994-07-06 1995-07-04 Single-cylinder crusher Expired - Lifetime EP0766601B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT1339/94 1994-07-06
AT0133994A AT400817B (en) 1994-07-06 1994-07-06 ROLLER CRUSHERS
AT13399/94 1994-07-06
PCT/AT1995/000143 WO1996001147A1 (en) 1994-07-06 1995-07-04 Single-cylinder crusher

Publications (2)

Publication Number Publication Date
EP0766601A1 true EP0766601A1 (en) 1997-04-09
EP0766601B1 EP0766601B1 (en) 1998-10-07

Family

ID=3511762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95923117A Expired - Lifetime EP0766601B1 (en) 1994-07-06 1995-07-04 Single-cylinder crusher

Country Status (13)

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EP (1) EP0766601B1 (en)
AT (1) AT400817B (en)
AU (1) AU2779495A (en)
CA (1) CA2194409A1 (en)
CZ (1) CZ291425B6 (en)
DE (1) DE59503860D1 (en)
ES (1) ES2125021T3 (en)
FI (1) FI970025A (en)
HU (1) HU214897B (en)
NO (1) NO970006L (en)
PL (1) PL177698B1 (en)
SI (1) SI9520082A (en)
WO (1) WO1996001147A1 (en)

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DE102006018375A1 (en) * 2006-04-20 2007-10-25 Rieter Automatik Gmbh Knife roller for granulating plastic strands

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Publication number Priority date Publication date Assignee Title
GB1427585A (en) * 1973-04-18 1976-03-10 Hally W W Mobile stone crushing machine
GB2092473B (en) * 1980-01-09 1983-11-02 Tatabanyai Szenbanyak Apparatus for the recovery of protein from green vegetable matter
DE3336827A1 (en) * 1983-10-10 1985-04-25 Claudius Peters Ag, 2000 Hamburg CRUSHING ROLLER FOR ROLLER CRUSHERS
DE3345754A1 (en) * 1983-12-17 1985-06-20 Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster Crusher roller
DE4210395A1 (en) * 1992-03-30 1993-10-07 Krupp Polysius Ag Roller mill

Non-Patent Citations (1)

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Title
See references of WO9601147A1 *

Also Published As

Publication number Publication date
PL177698B1 (en) 2000-01-31
WO1996001147A1 (en) 1996-01-18
ES2125021T3 (en) 1999-02-16
NO970006D0 (en) 1997-01-02
FI970025A (en) 1997-01-29
CZ291425B6 (en) 2003-03-12
CZ3097A3 (en) 1997-11-12
FI970025A0 (en) 1997-01-03
ATA133994A (en) 1995-08-15
HU9700008D0 (en) 1997-02-28
DE59503860D1 (en) 1998-11-12
SI9520082A (en) 1997-08-31
NO970006L (en) 1997-02-25
HUT76184A (en) 1997-07-28
CA2194409A1 (en) 1996-01-18
PL318042A1 (en) 1997-05-12
AU2779495A (en) 1996-01-25
HU214897B (en) 1998-07-28
AT400817B (en) 1996-03-25
EP0766601B1 (en) 1998-10-07

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