EP0403694A2 - Continuous crusher - Google Patents

Continuous crusher Download PDF

Info

Publication number
EP0403694A2
EP0403694A2 EP89120969A EP89120969A EP0403694A2 EP 0403694 A2 EP0403694 A2 EP 0403694A2 EP 89120969 A EP89120969 A EP 89120969A EP 89120969 A EP89120969 A EP 89120969A EP 0403694 A2 EP0403694 A2 EP 0403694A2
Authority
EP
European Patent Office
Prior art keywords
polygon
roller
disks
striking
tools
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
EP89120969A
Other languages
German (de)
French (fr)
Other versions
EP0403694B1 (en
EP0403694A3 (en
Inventor
Heinrich Haake
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.)
Mueller Herne Pumpen Maschinen Stahlbau GmbH
Original Assignee
Mueller Herne Pumpen Maschinen Stahlbau 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 Mueller Herne Pumpen Maschinen Stahlbau GmbH filed Critical Mueller Herne Pumpen Maschinen Stahlbau GmbH
Publication of EP0403694A2 publication Critical patent/EP0403694A2/en
Publication of EP0403694A3 publication Critical patent/EP0403694A3/en
Application granted granted Critical
Publication of EP0403694B1 publication Critical patent/EP0403694B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers

Definitions

  • the invention relates to a continuous crusher according to the preamble of claim 1.
  • Continuous crushers according to the invention differ from so-called intake crushers, among others. through the arrangement and design of their abutment. Since inlet crushers are arranged above a conveyor trough and use their own crushing bar, they require a certain passage height above which the crushed material is conveyed downwards. Continuous crushers, on the other hand, use the stationary construction of a conveyor as a crushing abutment and therefore do not consume any head. They are therefore particularly suitable for underground operations, the underground rooms of which are usually low in height. The known flow crusher of this type are therefore mainly used to shred the conveyed material, which consists of a mixture of coals and mountains.
  • the impact roller which forms the movable crushing element of the flow crusher according to the invention, rotates in the conveying direction of the conveyor forming the crushing abutment with its channel. This distinguishes the continuous crusher according to the invention from other continuous crushers, whose beater roller is opposite to the Direction of conveyance circulates. In the case of the latter flow crushers, this results in a different crushing effect.
  • the impact roller rotating against the conveying direction allows the impact tools to dip into the material to be crushed, which dig out the oversize grain in the crushing gap and fling it upwards, which then impacts a stationary crushing bar and is thereby broken.
  • the oversize is opened and split by one or more of the rapidly rotating impact tools and is not crushed between the crushing tools and the conveyor trough or hurled onto the conveyor trough. Only after the oversize has been crushed is the crushed material thrown into the space behind the beater roller and transported on by the conveyor.
  • This mode of operation which supports the conveyance, is advantageous, but presupposes that the striking tools have sufficient impact energy.
  • the invention is based on a previously known flow crusher (DE-PS 2 554 111). Its peculiarity is that the crushing roller builds a compact unit from welded fillet welded or cast together, alternating and congruent circular plates and hub-shaped discs, as well as rotating is firmly connected to the drive shaft on both sides. As a result, the impact roller and the shaft are protected, and an energy-consuming, unsteady rotation of the roller is avoided, so that high breaking performance is achieved.
  • the holders of the striking tools which are thereby immovably fixed on the disks, are arranged on striking arms which are formed in one piece and in pairs on each disk.
  • the discs therefore form hubs, from which the striking arms project radially like spokes.
  • the two striking arms of each disc are offset from each other by a semicircle.
  • the number of discs is even and the disc offset is offset by a quarter circle. This causes the impact roller to be balanced, which is a prerequisite for high speeds.
  • Such a continuous crusher can have two rollers arranged one behind the other and has a throughput of approx. 350 t / h in the case of material to be conveyed consisting of coal and accompanying rock, the impact roller rotating at approx. 350 rpm.
  • the crushed material to be crushed has an upper limit of approx. 250 to 300 mm.
  • the crushed material has a size of approx. 800 x 600 x 1500 mm.
  • mountains are to be conveyed hydraulically, because the crushed material has to be broken down to maximum grain sizes of 80 to 120 mm. If such mountains consist of hard rock, such as sand shale or sandstone, they can also be crushed only with difficulty because when they strike a striking tool they are not thrown out into the crushing gap, but in the opposite direction and then pose a considerable danger to the environment of the flow breaker.
  • the invention has for its object to provide a continuous crusher of the type described, which breaks down a crushed material, in particular from mountains, to smaller grain sizes and works as intended as described.
  • the number of crushing tools is significantly increased, which are attached to a disc with holders, so that there is a multiplication of the striking tools over the entire crushing roller. It is also known by the previous ten hubs achieved by the omission of the crushing arms significantly enlarged disc diameter, so that each time a crushing tool strikes an oversize of the crushed material, the braking that occurs is compensated. Contrary to the expectation that a crushing roller designed in this way, especially if it only has to crush mountains and also hard mountains, for example from sand slate, will throw the oversize out of the crushing gap, the opposite is the case. Rather, the crushing roller runs smoothly and throws the broken oversize into the space behind the beater roller.
  • the enlargement of the circular plates in diameter to a diameter that is larger than the polygon of the disc edges in turn increases the mass of the impact roller and makes it insensitive to the multiplication of the braking processes that occur when breaking and splitting the oversize particles. It also prevents the occurrence of oversize particles in the crushed material behind the beater roller, so that the continuous crusher according to the invention delivers an evenly broken down product.
  • the invention has the advantage that it breaks down coarse crushed material in one pass to substantially smaller grain sizes, for example to the required 80 to 120 mm, with smooth running of the beater roller being guaranteed, which protects the beater roller and its shaft.
  • the Impact roller can therefore be driven via V-belts without excessive slip occurring in the drive.
  • V-belt drives are particularly useful in flow breakers in order to be able to elastically transmit the required drive energies. In fact, it has been found that the throughputs can be increased to approximately 2000 t / h under comparable conditions with the flow crushers according to the invention.
  • the shaft (1) shown in Fig. 1 can accommodate on each of its twisted ends (2, 3) a non-rotatable drive pulley for a belt drive, which transmits the energy of a drive, not shown, to the shaft (1).
  • the drive sits stationary on a conveyor trough, not shown, which serves as an abutment.
  • the beater roller (4) rotates in the conveying direction of the conveyor to which the conveyor trough belongs. It is composed of three circular plates (5, 6 and 7) and four disks (8-11).
  • the expression compound means different form-fitting or non-positive connections, e.g. B.
  • the crushing roller has a disk (12 or 13) on both ends, the diameter of which is larger than that of the congruent circular plates (5-7).
  • These outer disks (12, 13) are congruent and provided with a recess (14) on the outside.
  • a flange (15) is countersunk in the recess, through which the screws (16), which are arranged on a pitch circle, penetrate and on which the screws are supported with their heads.
  • the screws (16) serve to fasten the disks (12 and 13) with the arrangement of the congruent circular plates (5-7) and the congruent disks (8-11), as well as with an annular flange (17) on each side of the shaft ( 1) to brace.
  • the shaft is also wedged with the beater roller (4), as shown at (18). This guarantees an absolutely rotationally fixed connection of the beater roller (4) to the shaft (1).
  • the disc (8) shown in view in Fig. 2 is provided with holders (19-24) which are integrally connected to the disc body (8). This has a circular recess (25) for the shaft (1) in the middle. Each holder carries an impact tool (26), only the impact tool (26) mounted in the holder (24) being shown for reasons of clarity in FIG. 2.
  • the striking tool has a forward, ie in the circumferential direction convex beating nose (27) and a shaft (28). It is welded with a back to a pin (29) which has a threaded end (30).
  • a clamping nut (31) fixes the pin (29) in a bore or cylindrical recess (33) in the holder (24) via one or more spring springs or spring washers (32).
  • the disc (8) has a polygonal edge (34).
  • the polygon thus formed has six sides (35-40), which corresponds to the number of six holders (24) and six striking tools (26). Since the holders (24) are each assigned to a polygon side (35-40), the striking tools (26) are arranged in a star shape.
  • Fig. 1 shows a total of four disks (8-11), which are congruent.
  • adjacent disks as shown in the example of disks (8 and 9), are each offset in the same direction by 30 degrees. The offset is always in one direction. As a result, the beater roller is balanced overall. It also means that each striking tool (26) acts separately on the oversize in the crushed material.
  • the circular plates (5-7) arranged between the disks (8-11) are so in diameter dimensioned so that their marginal edges (41) lie within the polygon circumscribed by the sides (35-40) of the polygon.
  • each polygon side (35-40) are provided with a right-angled, two-sided recess (44) in which the breaking tool (26) is supported with the rear of its part (28).
  • the crushing roller (4) rotates in the direction of the curved arrow (45), while the conveyor which defines the crushing gap conveys in the direction of the straight arrow (46). This ensures that the broken oversize grain is thrown into the space behind the crushing roller (4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

In a continuous crusher in which an impact crushing roller, which circulates in the conveying direction, rotates at high speed over a conveying channel section constructed as a crusher counter-bearing, which impact crushing roller has, on a shaft mounted on both sides, a roller connected fixed in terms of rotation at its ends to the shaft, said roller being formed from alternate circular plates and congruent discs which are connected to one another, cover the same area and are equipped with holders for impact crushing tools and are arranged in such a way that adjacent discs are arranged offset with respect to one another by half the arc of the distance between their crushing tools, it is provided according to the invention that the discs have a polygonal edge on which a multiplicity of impact crushing tools are arranged in a star shape and a side of a polygon is assigned in each case to an impact crushing tool, the holders being attached on the sides of the polygon, and that the edges of the plates are arranged between the discs outside the polygon circumscribed by the polygon branches. <IMAGE>

Description

Die Erfindung betrifft einen Durchlaufbrecher gemäß dem Oberbegriff des Anspruches 1.The invention relates to a continuous crusher according to the preamble of claim 1.

Erfindungsgemäße Durchlaufbrecher unterscheiden sich von sogenannten Einlaufbrechern u.a. durch die Anord­nung und Ausbildung ihres Widerlagers. Da Ein­laufbrecher oberhalb einer Förderrinne angeordnet sind und einen eigenen Brechbalken benutzen, verlangen sie eine bestimmte Durchgangshöhe, über die das Brech­gut nach unten gefördert wird. Durchlaufbrecher benutzen dagegen als Brechwiderlager die stationäre Konstruktion eines Förderers und verbrauchen daher keine Fallhöhe. Sie eignen sich daher besonders für den Untertage­betrieb, dessen unterirdische Räume meistens eine geringe Höhe aufweisen. Die bekannten Durchlaufbrecher dieser Art werden daher überwiegend zur Zerkleinerung des Fördergutes verwendet, das aus einer Mischung von Kohlen und Bergen besteht.Continuous crushers according to the invention differ from so-called intake crushers, among others. through the arrangement and design of their abutment. Since inlet crushers are arranged above a conveyor trough and use their own crushing bar, they require a certain passage height above which the crushed material is conveyed downwards. Continuous crushers, on the other hand, use the stationary construction of a conveyor as a crushing abutment and therefore do not consume any head. They are therefore particularly suitable for underground operations, the underground rooms of which are usually low in height. The known flow crusher of this type are therefore mainly used to shred the conveyed material, which consists of a mixture of coals and mountains.

Die Schlagwalze, welche das bewegliche Brechorgan des erfindungsgemäßen Durchlaufbrechers bildet, läuft in Förderrichtung des mit seiner Rinne das Brechwider­lager bildenden Förderers um. Darin unterscheidet sich der erfindungsgemäße Durchlaufbrecher von anderen Durchlaufbrechern, deren Schlagwalze entgegen der Förderrichtung umlauft. Bei den letztgenannten Durch­laufbrechern ergibt sich daraus eine abweichende Zerkleinerungswirkung. Die gegen die Förderrichtung umlaufende Schlagwalze läßt die Schlagwerkzeuge in das Brechgut eintauchen, die aus diesem das Überkorn im Brechspalt herausgraben und nach oben schleudern, das dann auf einen stationären Brechbalken prallt und dabei zerbrochen wird.The impact roller, which forms the movable crushing element of the flow crusher according to the invention, rotates in the conveying direction of the conveyor forming the crushing abutment with its channel. This distinguishes the continuous crusher according to the invention from other continuous crushers, whose beater roller is opposite to the Direction of conveyance circulates. In the case of the latter flow crushers, this results in a different crushing effect. The impact roller rotating against the conveying direction allows the impact tools to dip into the material to be crushed, which dig out the oversize grain in the crushing gap and fling it upwards, which then impacts a stationary crushing bar and is thereby broken.

Dagegen wird bei dem erfindungsgemäßen Durchlauf­brecher das Überkorn von einem oder mehreren der schnell umlaufenden Schlagwerkzeuge aufgeschlagen und gespalten und nicht zwischen den Brechwerkzeugen und der Förder­rinne zerdrückt bzw. auf die Förderrinne geschleudert. Erst nach der Zerkleinerung des Überkorns wird das Brechgut in den hinter der Schlagwalze liegenden Raum geschleudert und von dem Förderer weitertransportiert. Diese Betriebsart, die die Förderung unterstützt, ist vorteilhaft, setzt allerdings voraus, daß die Schlag­werkzeuge genügend Schlagenergie aufbringen.On the other hand, in the continuous crusher according to the invention, the oversize is opened and split by one or more of the rapidly rotating impact tools and is not crushed between the crushing tools and the conveyor trough or hurled onto the conveyor trough. Only after the oversize has been crushed is the crushed material thrown into the space behind the beater roller and transported on by the conveyor. This mode of operation, which supports the conveyance, is advantageous, but presupposes that the striking tools have sufficient impact energy.

Die Erfindung geht von einem vorbekannten Durchlauf­brecher aus (DE-PS 2 554 111). Dessen Besonderheit besteht darin, daß die Brechwalze eine kompakte Einheit aus miteinander durch Schweißkehlnähte verbundenen oder gegossen, abwechselnden und deckungsgleichen Kreisplatten und nabenförmigen Scheiben aufgebaut, sowie außerdem dreh­ fest auf beiden Seiten mit der Antriebswelle verbunden ist. Hierdurch werden die Schlagwalze und die Welle geschont, sowie ein energieverzehrender, unruhiger Umlauf der Walze vermieden, so daß hohe Brechleistungen erzielt werden.The invention is based on a previously known flow crusher (DE-PS 2 554 111). Its peculiarity is that the crushing roller builds a compact unit from welded fillet welded or cast together, alternating and congruent circular plates and hub-shaped discs, as well as rotating is firmly connected to the drive shaft on both sides. As a result, the impact roller and the shaft are protected, and an energy-consuming, unsteady rotation of the roller is avoided, so that high breaking performance is achieved.

Bei dem vorbekannten Durchlaufbrecher sind jedoch die Halter der Schlagwerkzeuge, welche dadurch unbeweglich auf den Scheiben festgelegt sind, auf Schlagarmen angeordnet, welche einstückig und paarweise an jeder Scheibe ausgebildet sind. Die Scheiben bilden daher Naben, von denen die Schlagarme wie Speichen radial vorstehen. Die beiden Schlagarme jeder Scheiben sind um einen Halbkreis gegeneinander versetzt. Die Scheiben­anzahl ist geradzahlig und der Scheibenversatz jeweils um einen Viertelkreis versetzt. Das bewirkt die Auswuch­tung der Schlagwalze, die für hohe Drehzahlen Vorausset­zung ist.In the known continuous crusher, however, the holders of the striking tools, which are thereby immovably fixed on the disks, are arranged on striking arms which are formed in one piece and in pairs on each disk. The discs therefore form hubs, from which the striking arms project radially like spokes. The two striking arms of each disc are offset from each other by a semicircle. The number of discs is even and the disc offset is offset by a quarter circle. This causes the impact roller to be balanced, which is a prerequisite for high speeds.

Ein solcher Durchlaufbrecher kann zwei hintereinander angeordnete Walzen aufweisen und hat bei einem aus Kohle und begleitendem Gestein bestehenden Fördergut eine Durchsatzleistung von ca. 350 t/h, wobei die Schlagwalze mit ca. 350 U/min umläuft. Das zerkleinerte Brechgut hat ein oberes Grenzkorn von ca. 250 bis 300 mm. Dabei hat das Brechgut eine Stückgröße von ca. 800 x 600 x 1500 mm.Such a continuous crusher can have two rollers arranged one behind the other and has a throughput of approx. 350 t / h in the case of material to be conveyed consisting of coal and accompanying rock, the impact roller rotating at approx. 350 rpm. The crushed material to be crushed has an upper limit of approx. 250 to 300 mm. The crushed material has a size of approx. 800 x 600 x 1500 mm.

Diese Werte reichen jedoch häufig nicht aus. Das ist u.a. der Fall, wenn Berge hydraulisch gefördert werden sollen, weil hierfür das Brechgut auf maximale Korngrös­sen von 80 bis 120 mm heruntergebrochen werden muß. Wenn derartige Berge aus hartem Gestein, etwa aus Sandschiefer oder Sandstein bestehen, können sie außerdem nur schwer zerkleinert werden, weil sie beim Auftreffen eines Schlagwerkzeuges nicht in den Brech­spalt, sondern in Gegenrichtung herausgeschleudert werden und dann eine erhebliche Gefahr für die Umgebung des Durchlaufbrechers darstellen.However, these values are often not sufficient. Among other things, this is the case when mountains are to be conveyed hydraulically, because the crushed material has to be broken down to maximum grain sizes of 80 to 120 mm. If such mountains consist of hard rock, such as sand shale or sandstone, they can also be crushed only with difficulty because when they strike a striking tool they are not thrown out into the crushing gap, but in the opposite direction and then pose a considerable danger to the environment of the flow breaker.

Der Erfindung liegt die Aufgabe zugrunde, einen Durch­laufbrecher der beschriebenen Art zu schaffen, welcher ein insbesondere aus Bergen bestehendes Brechgut auf geringere Korngrößen herunterbricht und dabei bestimmungsgemäß wie geschildert arbeitet.The invention has for its object to provide a continuous crusher of the type described, which breaks down a crushed material, in particular from mountains, to smaller grain sizes and works as intended as described.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Weitere Merkmale der Erfindung sind Gegenstand der Unteransprüche.This object is achieved with the features of claim 1. Further features of the invention are the subject of the dependent claims.

Gemäß der Erfindung ist die Anzahl der Brechwerkzeuge wesentlich vermehrt, die auf einer Scheibe mit Haltern befestigt sind, so daß sich eine Vervielfachung der Schlagwerkzeuge über die ganze Brechwalze gesehen ergibt. Außerdem wird durch die gegenüber den vorbekann­ ten Naben durch den Wegfall der Brecharme wesentlich vergrößerten Scheibendurchmesser erreicht, so daß bei jedem Auftreffen eines Brechwerkzeuges auf ein Überkorn des Brechgutes die dabei auftretende Abbremsung ausge­glichen wird. Entgegen der Erwartung, daß eine derart gestaltete Brechwalze, insbesondere dann, wenn sie nur Berge und auch noch harte Berge z.B. aus Sandschiefer zerkleinern muß, das Überkorn aus dem Brechspalt her­ausschleudert, ergibt sich das Gegenteil. Die Brechwalze läuft vielmehr in ruhigem Lauf um und schleudert das zerbrochene Überkorn in den Raum hinter der Schlagwalze. Die Vergrößerung der Kreisplatten im Durchmesser auf Durchmesser, der größer als das Vieleck der Scheiben­ränder ist, vergrößert ihrerseits die Masse der Schlag­walze und macht diese unempfindlich gegen die Verviel­fachung der auftretenden Abbremsvorgänge beim Zer­brechen und Spalten des Überkorn. Sie verhindert außer­dem das Auftreten von Überkorn im Brechgut hinter der Schlagwalze, so daß der erfindungsgemäße Durchlauf­brecher ein gleichmäßig heruntergebrochenes Gut liefert.According to the invention, the number of crushing tools is significantly increased, which are attached to a disc with holders, so that there is a multiplication of the striking tools over the entire crushing roller. It is also known by the previous ten hubs achieved by the omission of the crushing arms significantly enlarged disc diameter, so that each time a crushing tool strikes an oversize of the crushed material, the braking that occurs is compensated. Contrary to the expectation that a crushing roller designed in this way, especially if it only has to crush mountains and also hard mountains, for example from sand slate, will throw the oversize out of the crushing gap, the opposite is the case. Rather, the crushing roller runs smoothly and throws the broken oversize into the space behind the beater roller. The enlargement of the circular plates in diameter to a diameter that is larger than the polygon of the disc edges in turn increases the mass of the impact roller and makes it insensitive to the multiplication of the braking processes that occur when breaking and splitting the oversize particles. It also prevents the occurrence of oversize particles in the crushed material behind the beater roller, so that the continuous crusher according to the invention delivers an evenly broken down product.

Die Erfindung hat den Vorteil, daß sie grobes Brechgut in einem Durchlauf auf wesentlich geringere Korngrößen z.B. auf die geforderten 80 bis 120 mm herunterbricht, wobei ein ruhiger Lauf der Schlagwalze gewährleistet ist, der die Schlagwalze und ihre Welle schont. Die Schlagwalze kann daher auch über Keilriemen angetrieben werden, ohne daß ein übermäßiger Schlupf im Antrieb auftritt. Keilriemenantriebe sind bei Durchlaufbrechern besonders zweckmäßig, um die geforderten Antriebs­energien elastisch übertragen zu können. Tatsächlich hat sich herausgestellt, daß mit den erfindungsgemäßen Durchlaufbrechern unter vergleichbaren Bedingungen die Durchsatzleistungen auf ca. 2000 t/h gesteigert werden können.The invention has the advantage that it breaks down coarse crushed material in one pass to substantially smaller grain sizes, for example to the required 80 to 120 mm, with smooth running of the beater roller being guaranteed, which protects the beater roller and its shaft. The Impact roller can therefore be driven via V-belts without excessive slip occurring in the drive. V-belt drives are particularly useful in flow breakers in order to be able to elastically transmit the required drive energies. In fact, it has been found that the throughputs can be increased to approximately 2000 t / h under comparable conditions with the flow crushers according to the invention.

Mit den Merkmalen des Anspruches 2 wird eine Form der Schlagwalze geschaffen, welche das zuvor geschilderte Brechergebnis ermöglicht.With the features of claim 2, a shape of the impact roller is created, which enables the previously described breaking result.

Zweckmäßig ist ferner die Verwirklichung der Merkmale des Anspruches 3, weil hierdurch ein fester Sitz der Schlagwerkzeuge auf dem Scheibenrand gewährleistet wird.It is also useful to achieve the features of claim 3, because this ensures a tight fit of the striking tools on the edge of the disc.

Die Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer Ausführungsform anhand der Figuren in der Zeichnung; es zeigen

  • Fig. 1 eine teilweise im Längsschnitt gehaltene Ansicht der Schlagwalze gemäß der Erfindung und ihrer Antriebswelle unter Weglassung der übrigen Teile des Durchlaufbrechers,
  • Fig. 2 eine Ansicht einer der Scheiben, die zu mehreren die Schlagwalze bilden und
  • Fig. 3 in der Fig. 2 entsprechender Darstellung den Scheibenversatz.
The details of the invention result from the following description of an embodiment with reference to the figures in the drawing; show it
  • 1 is a partially longitudinal section view of the beater roller according to the invention and its drive shaft with omission of the other parts of the flow breaker,
  • Fig. 2 is a view of one of the discs that form the beater roller to several
  • Fig. 3 in Fig. 2 corresponding representation of the disc offset.

Die in Fig. 1 dargestellte Welle (1) kann auf jedem ihrer abgedrehten Enden (2, 3) eine drehfeste Antriebs­scheibe für einen Riementrieb aufnehmen, welche die Energie eines nicht dargestellten Antriebes auf die Welle (1) überträgt. Der Antrieb sitzt stationär auf einer nicht dargestellten Förderrinne, welche als Brechwiderlager dient. In Förderrichtung des Förderers, zu dem die Förderrinne gehört, läuft die Schlagwalze (4) um. Sie ist aus drei Kreisplatten (5, 6 und 7), sowie aus vier Scheiben (8-11) zusammengesetzt. Der Ausdruck zusammengesetzt bedeutet im vorliegenden Zusammenhang verschiedene form- oder kraftschlüssige Verbindungen, z. B., daß die Kreisplatten (5-7) und die kongruenten Scheiben (8-11) an ihren Rändern durch Kehlnähte miteinander verschweißt sind, was im Ausführungsbeispiel nach den Fig. 1 und 2 angenommen worden ist, oder daß die deckungsgleichen Kreisplatten (5-7) und die kongruenten Scheiben (8-11) einen Guß­körper bilden, der die aus den Fig. 1 und 2 ersicht­liche Form aufweist, jedoch einteilig ausgebildet ist.The shaft (1) shown in Fig. 1 can accommodate on each of its twisted ends (2, 3) a non-rotatable drive pulley for a belt drive, which transmits the energy of a drive, not shown, to the shaft (1). The drive sits stationary on a conveyor trough, not shown, which serves as an abutment. The beater roller (4) rotates in the conveying direction of the conveyor to which the conveyor trough belongs. It is composed of three circular plates (5, 6 and 7) and four disks (8-11). In the present context, the expression compound means different form-fitting or non-positive connections, e.g. B. that the circular plates (5-7) and the congruent discs (8-11) are welded together at their edges by fillet welds, which was assumed in the embodiment according to FIGS. 1 and 2, or that the congruent circular plates (5th -7) and the congruent disks (8-11) form a cast body which has the shape shown in FIGS. 1 and 2, but is formed in one piece.

Die Brechwalze weist außen an beiden Enden je eine Scheibe (12 bzw. 13) auf, die im Durchmesser gegenüber den deckungsgleichen Kreisplatten (5-7) vergrößert ist. Diese Außenscheiben (12, 13) sind ihrerseits deckungsgleich und außen mit einer Aussparung (14) versehen. In der Aussparung ist ein Flansch (15) versenkt, den Schrauben (16), welche auf einem Teil­kreis angeordnet sind, durchdringen und auf dem sich die Schrauben mit ihren Köpfen abstützen. Die Schrauben (16) dienen dazu, die Scheiben (12 und 13) mit der Anordnung aus den deckungsgleichen Kreis­platten (5-7) und den kongruenten Scheiben (8-11), sowie mit einem Ringflansch (17) auf jeder Seite der Welle (1) zu verspannen. Im Inneren der außenliegenden Kreisplatten und Scheiben ist die Welle außerdem mit der Schlagwalze (4), wie bei (18) dargestellt, ver­keilt. Demzufolge ist eine absolut drehfeste Verbindung der Schlagwalze (4) mit der Welle (1) gewährleistet.The crushing roller has a disk (12 or 13) on both ends, the diameter of which is larger than that of the congruent circular plates (5-7). These outer disks (12, 13) are congruent and provided with a recess (14) on the outside. A flange (15) is countersunk in the recess, through which the screws (16), which are arranged on a pitch circle, penetrate and on which the screws are supported with their heads. The screws (16) serve to fasten the disks (12 and 13) with the arrangement of the congruent circular plates (5-7) and the congruent disks (8-11), as well as with an annular flange (17) on each side of the shaft ( 1) to brace. In the interior of the outer circular plates and disks, the shaft is also wedged with the beater roller (4), as shown at (18). This guarantees an absolutely rotationally fixed connection of the beater roller (4) to the shaft (1).

Die in Ansicht in Fig. 2 wiedergegebene Scheibe (8) ist mit Haltern (19-24) versehen, welche einstückig mit dem Scheibenkörper (8) verbunden sind. Dieser weist in der Mitte eine kreisförmige Aussparung (25) für die Welle (1) auf. Jeder Halter trägt ein Schlagwerkzeug (26), wobei aus Gründen der Übersicht in Fig. 2 nur das in dem Halter (24) gelagerte Schlagwerkzeug (26) wieder­gegeben ist. Das Schlagwerkzeug hat eine nach vorn, d.h. in Umlaufrichtung konvex gewölbte Schlagnase (27) und einen Schaft (28). Es ist mit einer Rückseite an einen Zapfen (29) angeschweißt, der ein mit Gewinde versehenes Ende (30) aufweist. Eine Spannmutter (31) legt über einen oder mehrere Fellerfedern oder Federringe (32) den Zapfen (29) in einer Bohrung bzw. zylindrischen Aussparung (33) im Halter (24) fest.The disc (8) shown in view in Fig. 2 is provided with holders (19-24) which are integrally connected to the disc body (8). This has a circular recess (25) for the shaft (1) in the middle. Each holder carries an impact tool (26), only the impact tool (26) mounted in the holder (24) being shown for reasons of clarity in FIG. 2. The striking tool has a forward, ie in the circumferential direction convex beating nose (27) and a shaft (28). It is welded with a back to a pin (29) which has a threaded end (30). A clamping nut (31) fixes the pin (29) in a bore or cylindrical recess (33) in the holder (24) via one or more spring springs or spring washers (32).

Die Scheibe (8) weist einen polygonalen Rand (34) auf. Das dadurch gebildete Vieleck besitzt sechs Seiten (35-40), dem die Anzahl von sechs Haltern (24) und sechs Schlagwerkzeugen (26) entspricht. Da die Halter (24) jeweils einer Polygonseite (35-40) zugeordnet sind, ergibt sich eine sternförmige Anordnung der Schlag­werkzeuge (26).The disc (8) has a polygonal edge (34). The polygon thus formed has six sides (35-40), which corresponds to the number of six holders (24) and six striking tools (26). Since the holders (24) are each assigned to a polygon side (35-40), the striking tools (26) are arranged in a star shape.

Fig. 1 zeigt insgesamt vier Scheiben (8-11), welche kongruent ausgebildet sind. Nach Fig. 3 sind benach­barte Scheiben, wie am Beispiel der Scheiben (8 und 9) gezeigt jeweils in der gleichen Richtung um 30 Grad gegeneinander versetzt angeordnet. Der Versatz erfolgt dabei stets in einer Richtung. Das hat zur Folge, daß die Schlagwalze insgesamt ausge­wuchtet ist. Es führt ferner dazu, daß jedes Schlagwerkzeug (26) für sich auf das Überkorn im Brechgut einwirkt. Die zwischen den Scheiben (8-11) angeordneten Kreisplatten (5-7) sind im Durchmesser so bemessen, daß ihre Randkanten (41) innerhalb des von den Seiten (35-40) des Polygonzuges umschriebenen Vielecks liegen.Fig. 1 shows a total of four disks (8-11), which are congruent. According to FIG. 3, adjacent disks, as shown in the example of disks (8 and 9), are each offset in the same direction by 30 degrees. The offset is always in one direction. As a result, the beater roller is balanced overall. It also means that each striking tool (26) acts separately on the oversize in the crushed material. The circular plates (5-7) arranged between the disks (8-11) are so in diameter dimensioned so that their marginal edges (41) lie within the polygon circumscribed by the sides (35-40) of the polygon.

Zur Abstützung der Schlagwerkzeuge (26) sind die Scheibenränder an jeder Polygonseite (35-40) mit einer rechtwinkligen, zweiseitigen Aussparung (44) versehen, in der sich das Brechwerkzeug (26) mit der Rückseite seines Teiles (28) abstützt.To support the striking tools (26), the disc edges on each polygon side (35-40) are provided with a right-angled, two-sided recess (44) in which the breaking tool (26) is supported with the rear of its part (28).

Die Brechwalze (4) läuft in Richtung des gekrümmten Pfeiles (45) um, während der in den Brechspalt defi­nierende Förderer in Richtung des geraden Pfeils (46) fördert. Hierdurch wird erreicht, daß das zerbrochene Überkorn in den Raum hinter der Brechwalze (4) geschleudert wird.The crushing roller (4) rotates in the direction of the curved arrow (45), while the conveyor which defines the crushing gap conveys in the direction of the straight arrow (46). This ensures that the broken oversize grain is thrown into the space behind the crushing roller (4).

Claims (4)

1. Durchlaufbrecher, bei dem über einem als Brechwiderlager ausgebildeten Förderrinnen­abschnitt eine in Förderrichtung umlaufende Schlagwalze mit hoher Drehzahl rotiert, welche auf einer auf beiden Seiten gelager­ten Welle eine an ihren Enden mit der Welle drehfest verbundene Walze aufweist, die aus miteinander verbundenen, abwechselnden, deckungsgleichen Kreisplatten und kongruenten Scheiben gebildet ist, welche mit Haltern für Schlagwerkzeuge bestückt und so angeordnet sind, daß benachbarte Scheiben jeweils um den halben Bogen des Abstandes ihrer Brechwerk­zeuge gegeneinander versetzt angeordnet sind, dadurch gekennzeichnet, daß die Scheiben (8-11) einen polygonalen Rand (34) aufweisen, auf dem eine Vielzahl von Schlagwerkzeugen (26) sternförmig angeordnet ist, wobei jedem Schlagwerkzeug (26) eine Polygonseite (35-40) zugeordnet ist und die Halter auf den Polygonseiten (35-40) angebracht sind, und daß die Randkante (41-43) der zwischen den Scheiben (8-11) angeordneten Kreisplatten (5-7) innerhalb des von den Polygonzügen der Scheiben (8-11) umschriebenen Vielecks angeordnet sind.1. Continuous crusher in which a striking roller rotating in the conveying direction rotates at high speed over a conveyor trough section designed as an abutment abutment, which has a roller on both sides of a shaft that is non-rotatably connected at its ends to the shaft and that consists of interconnected, alternating, congruent Circular plates and congruent disks are formed, which are equipped with holders for striking tools and are arranged such that adjacent disks are each offset by half the arc of the distance of their crushing tools, characterized in that the disks (8-11) have a polygonal edge ( 34), on which a plurality of striking tools (26) are arranged in a star shape, each striking tool (26) being assigned a polygon side (35-40) and the holders being attached to the polygon sides (35-40), and in that the edge (41-43) of the circular plate arranged between the disks (8-11) tten (5-7) within the polygon defined by the polygons of the disks (8-11) are arranged. 2. Durchlaufbrecher nach Anspruch 1, dadurch gekennzeichnet, daß die Scheibenränder (34) einen sechseckigen Polygonzug (35-40) dar­stellen und die Scheiben um 30 Grad gegen­einander in der Schlagwalze (4) versetzt angeordnet sind.2. Continuous crusher according to claim 1, characterized in that the disc edges (34) represent a hexagonal polygon (35-40) and the discs are arranged offset by 30 degrees to each other in the beater roller (4). 3. Durchlaufbrecher nach einem oder mehreren der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Polygonseiten (35-40) des Scheiben­randes (34) an ihrem in Drehrichtung vorlau­fenden Ende und an den Haltern (24) zur Abstützung der Schlagwerkzeuge (26) ausge­spart sind.3. Continuous crusher according to one or more of claims 1 or 2, characterized in that the polygon sides (35-40) of the disc edge (34) at their leading end in the direction of rotation and on the holders (24) for supporting the striking tools (26) are. 4. Durchlaufbrecher nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Aussparung (44) zweiseitig und recht­winklig sind und zur Aufnahme des Schaftes (28) des Schlagwerkzeuges (26) dienen.4. flow crusher according to one or more of claims 1 to 3, characterized in that the recess (44) are bilateral and rectangular and serve to receive the shaft (28) of the striking tool (26).
EP89120969A 1989-06-21 1989-11-11 Continuous crusher Expired - Lifetime EP0403694B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3920305 1989-06-21
DE3920305A DE3920305A1 (en) 1989-06-21 1989-06-21 BREAKTHROWER

Publications (3)

Publication Number Publication Date
EP0403694A2 true EP0403694A2 (en) 1990-12-27
EP0403694A3 EP0403694A3 (en) 1991-06-19
EP0403694B1 EP0403694B1 (en) 1994-07-06

Family

ID=6383241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120969A Expired - Lifetime EP0403694B1 (en) 1989-06-21 1989-11-11 Continuous crusher

Country Status (4)

Country Link
EP (1) EP0403694B1 (en)
AT (1) ATE108094T1 (en)
DE (2) DE3920305A1 (en)
ES (1) ES2056178T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027563A1 (en) * 1994-04-11 1995-10-19 Mount Isa Mines Limited Attrition mill
WO1998058739A1 (en) * 1997-06-23 1998-12-30 Mmd Design & Consultancy Limited Mineral breaker
US5984213A (en) * 1994-04-11 1999-11-16 Mount Isa Mines Limited Attrition mill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410309C2 (en) * 1994-03-25 2002-02-28 Westfalia Becorit Ind Tech Impact Roll Crushers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061210A (en) * 1961-09-29 1962-10-30 Columbus Mckinnon Corp Material handling machine
US4311284A (en) * 1980-02-08 1982-01-19 The W. R. Stamler Corporation Device for fracturing material
GB2110954A (en) * 1981-12-05 1983-06-29 Dresser Europe Sa Tool-holding mounting ring for crushing machine rotor
GB2116875A (en) * 1979-02-03 1983-10-05 Mmd Design And Consultance Lim Mineral breakers
DE8630905U1 (en) * 1986-11-18 1987-03-12 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Impact tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061210A (en) * 1961-09-29 1962-10-30 Columbus Mckinnon Corp Material handling machine
GB2116875A (en) * 1979-02-03 1983-10-05 Mmd Design And Consultance Lim Mineral breakers
US4311284A (en) * 1980-02-08 1982-01-19 The W. R. Stamler Corporation Device for fracturing material
GB2110954A (en) * 1981-12-05 1983-06-29 Dresser Europe Sa Tool-holding mounting ring for crushing machine rotor
DE8630905U1 (en) * 1986-11-18 1987-03-12 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Impact tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027563A1 (en) * 1994-04-11 1995-10-19 Mount Isa Mines Limited Attrition mill
US5797550A (en) * 1994-04-11 1998-08-25 Mount Isa Mines Limited Attrition mill
US5984213A (en) * 1994-04-11 1999-11-16 Mount Isa Mines Limited Attrition mill
WO1998058739A1 (en) * 1997-06-23 1998-12-30 Mmd Design & Consultancy Limited Mineral breaker

Also Published As

Publication number Publication date
EP0403694B1 (en) 1994-07-06
ES2056178T3 (en) 1994-10-01
EP0403694A3 (en) 1991-06-19
DE58908015D1 (en) 1994-08-11
ATE108094T1 (en) 1994-07-15
DE3920305A1 (en) 1991-01-03

Similar Documents

Publication Publication Date Title
EP3565775B1 (en) Scraper system for belt conveyors and method for cleaning belt conveyors
DE1296943B (en) Disintegrator
DE2801460C2 (en)
DE2158778A1 (en) Crushing device for wood and leaves and similar materials
DE3807983C2 (en) Crushing device
EP0124138B1 (en) Method and apparatus for grinding vegetal products
EP0403694B1 (en) Continuous crusher
CH630538A5 (en) CRUSHING MACHINE.
DE1272091C2 (en) Hammer crusher for breaking up waste, especially metallic objects
EP0801975A1 (en) Apparatus for treating organic waste
DE4140343C2 (en) Sieve drum
DE3414375A1 (en) Blade for the comminution of animal raw materials, preferably in meat mincing machines
DE2457403C2 (en) Device for cutting material, in particular wood
DE830604C (en) Impact mill, especially for grinding wheat and other grains
DE2812985C2 (en) Device for processing crushed rock
DE573162C (en) Centrifugal mills such as hammer mills, pin mills or the like.
WO2001000325A1 (en) Machine for chopping organic cut products
DE915294C (en) Blower mill
DE2163699C3 (en) Agitator mill with pretreatment room
DE3147065C1 (en) Impact crusher
DE19748206A1 (en) Process for operating a mixer and shredder for waste, in particular for biodegradable waste, and a shredder and mixer working according to the process
DE2814778A1 (en) Vertical drum loose material crusher - has two cutter discs with cutting edges forming closed zigzag shape
DE202009011011U1 (en) hammer mill
AT384752B (en) CRUSHING DEVICE, ESPECIALLY FOR FEED MATERIAL OR THE LIKE.
DE1086876B (en) Machine for cutting, especially wood

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE DE ES FR GB IT

17P Request for examination filed

Effective date: 19910215

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17Q First examination report despatched

Effective date: 19920611

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT

REF Corresponds to:

Ref document number: 108094

Country of ref document: AT

Date of ref document: 19940715

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58908015

Country of ref document: DE

Date of ref document: 19940811

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940818

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2056178

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19971027

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19971117

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19971121

Year of fee payment: 9

Ref country code: AT

Payment date: 19971121

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19971127

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981111

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19981112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981130

BERE Be: lapsed

Owner name: MULLER G.M.B.H. HERNE PUMPEN MASCHINEN STAHLBAU

Effective date: 19981130

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19981111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030131

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051111