EP1579915A1 - Mill with replacable beater strip - Google Patents

Mill with replacable beater strip Download PDF

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Publication number
EP1579915A1
EP1579915A1 EP05005932A EP05005932A EP1579915A1 EP 1579915 A1 EP1579915 A1 EP 1579915A1 EP 05005932 A EP05005932 A EP 05005932A EP 05005932 A EP05005932 A EP 05005932A EP 1579915 A1 EP1579915 A1 EP 1579915A1
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EP
European Patent Office
Prior art keywords
mill
blow bars
rotor
blow
grinding
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
EP05005932A
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German (de)
French (fr)
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EP1579915B1 (en
Inventor
Marcus Adam
Thomas Schaflitzl
Alexander Stegmann
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Hosokawa Alpine AG
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Hosokawa Alpine AG
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Priority to SI200531495T priority Critical patent/SI1579915T1/en
Priority to PL05005932T priority patent/PL1579915T3/en
Publication of EP1579915A1 publication Critical patent/EP1579915A1/en
Application granted granted Critical
Publication of EP1579915B1 publication Critical patent/EP1579915B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C2013/145—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with fast rotating vanes generating vortexes effecting material on material impact

Definitions

  • the invention relates to a mill with several grinding stages for the treatment, especially for crushing, drying, grinding, coating and Deagglomeration / dispersion of dry or moist material according to claim 1, with inlet and outlet devices for carrier gas and Good, consisting of a cylindrical or frustoconical, drivable rotor with several superposed circular disks and circumferentially distributed, blow bars, with a likewise cylindrical or frustoconical, all Mahlebenen common stator.
  • the invention particularly relates to a mill with light weight replaceable blow bars with appropriately designed mill housing.
  • a mill which has a disk-shaped, identifies radial carrier for the grinding media equipped rotor.
  • the carriers are provided on its top and bottom with brackets or recesses, the Keep the grinding media against the centrifugal force.
  • On the rotor are between two adjacent radial supports mounted around the rotor rotatable clamping rings, the lock the grinding media.
  • this mill were the screw connections replaced.
  • this construction is very expensive to manufacture and the Mounting is not much easier.
  • the mills described in the prior art have all milling stages, which in each case several grinding tools are assigned and there individually or be fastened together.
  • DE 100 53 946 the milling stages through Limited annular baffles that are inserted between the grinding tools.
  • the replacement or assembly of the grinding tools is pressure shock resistant Execution, without large doors, not possible without dismantling the machine.
  • the blow bars can by their easy interchangeability to the appropriate Mahlaufgabe be adapted.
  • the grinding gap between the grinding track on the stator and the blow bars can by simply replacing blow bars by others, with different depth and profile, slightly changed in width and geometry become.
  • the grinding gap can thus be adapted to every task and every product become. Compliance with the accuracy of Mahlspaltweite is given.
  • the one-piece blow bars have two functions, a Mahlditerfunktion and a hold function.
  • the area of the blow bars with hold function is like this formed that the blow bars in the recesses with undercut of the Circular disks can be inserted on the rotor from top to bottom.
  • the Area with Mahltrainrfunktion is in the installed state radially, parallel to the rotor axis aligned. This range can be about the height with any profile and in Any depth can be made, so that by replacing the blow bars the Mahlspaltweite and geometry can be easily changed.
  • the blow bars may be formed so that they are in the gap between Protruding the circular disk and the grinding track, cut exactly with the circular disks or the circular disks protrude farther into the grinding gap than the impact disks.
  • the illustrated in Figure 1 variant of the mill 1 according to the invention consists of a rotor 2 which is enclosed by a stator 3 with a grinding track. Of the Rotor 2 is driven by a drive unit, not shown. The mill is fed in this embodiment from below with regrind and carrier air. At the Upper end of the housing is the outlet for product and carrier gas. Also at the upper end of the housing is a closable opening 7 through which the blow bars 6 pulled out of the mill 1 or used will have to disassemble without the mill 1.
  • the rotor 2 consists of several superimposed circular disks 4 in which the blow bars 6 held become.
  • FIG. 2 shows the rotor 2, with the circular disks 4 arranged one above the other shown.
  • the circular discs 4 have recesses 8, here in the form of angled slots that the blow bars 6 by plugging in from above take up.
  • a holding plate is arranged below the lowest circular disc, which prevents slipping of the blow bars 6.
  • the blow bars 6 according to Figure 3 are designed as folded sheets.
  • the Blow bars can be divided into two sections with different functions Divide, the right side in Figure 3 represents the area with Mahlellerfunktion and the left side of the area with hold function.
  • the contour of the thigh with Holding function fits in the recesses 8 of the circular discs 4. If the rotor 2 in Staggered rotation, the blow bars 6 are located on the radially outer side of the Recess 8 and are held so.
  • a recess 9 is provided in the one Hook which has been inserted through the opening 7 in the mill, engages around the To pull or introduce blow bars 6 out of the machine.
  • blow bars 6 can different contours in Mahltrainr Scheme exhibit.
  • the blow bar is executed with a straight contour, while the Blow bars 6 are executed in Figure 1 and 2 bulging.
  • FIG 4 is another embodiment of the blow bars 6 and the Circular disks 4 shown for the mill 1 according to the invention.
  • the circular disks 4 have slot-shaped recesses 8 at the edge, which extend in a diamond-shaped, followed by a second diamond-shaped extension.
  • the corresponding blow bars 6 are rectangular and have holes in the intervals that the Intervals of the circular disks 4 on the rotor 2 correspond.
  • Screws or bolts 10 are used. Be the blow bars 6 from above inserted into the rotor 2, the screws or bolts 10 are exactly in the recesses 8 of the circular disks 4 and hold the bat 6 so in the rotor. 2 With an equipment of the blow bars 6 with screws 10, the depth of the the blow bars 6 in the grinding gap rich set by means of screws 10 become.
  • the recesses in the circular disks may be designed as slots which are radially away from the edge or at an angle to the radial direction, in order then to have a distinction.
  • This undercut can be designed on one side or on both sides and be formed in any geometric shape, for. B. rectangular, circular or triangular.
  • the blow bars can have a wide variety of contours, for example straight, bulbous but also increase in width across the height of the racket or decrease. But there are also all combinations of these contours feasible and projections and recesses.

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

Abstract

The mill with several stages has a cylindrical or truncated cone-form driven rotor (2) with circular discs (4) installed one above the other and circumferentially distributed beating arms (6) with a cylindrical or truncated cone-form stator. The beating arms extend over several and preferably all milling stages. The mill housing on the end face has at least one opening for the equipping of the rotor with exchangeable, plug-in beating arms which can be fitted without additional means of fastening.

Description

Die Erfindung betrifft eine Mühle mit mehreren Mahlstufen zur Behandlung, insbesondere zum Zerkleinern, Trocknen, Mahltrocknen, Coatieren und Desagglomerieren/Dispergieren von trocknem oder feuchtem Gut gemäß Anspruch 1, mit Einlaß- und Auslaßvorrichtungen für Trägergas und Gut, bestehend aus einem zylindrischen oder kegelstumpfförmigen, antreibbaren Rotor mit mehreren übereinander angeordneten Kreisscheiben und am Umfang verteilten, Schlagleisten, mit einem ebenfalls zylindrischen oder kegelstumpfförmigen, allen Mahlebenen gemeinsamen Stator. Die Erfindung betrifft insbesondere eine Mühle mit leicht austauschbaren Schlagleisten mit entsprechend gestaltetem Mühlengehäuse.The invention relates to a mill with several grinding stages for the treatment, especially for crushing, drying, grinding, coating and Deagglomeration / dispersion of dry or moist material according to claim 1, with inlet and outlet devices for carrier gas and Good, consisting of a cylindrical or frustoconical, drivable rotor with several superposed circular disks and circumferentially distributed, blow bars, with a likewise cylindrical or frustoconical, all Mahlebenen common stator. The invention particularly relates to a mill with light weight replaceable blow bars with appropriately designed mill housing.

Gattungsgemäße Mühlen sind aus der DE 35 43 370 vorbekannt. Bei diesen Mühlen wird jede Mahlstufe von einer auf dem Umfang einer Kreisscheibe befestigten Vielzahl von Mahlplatten gebildet. Die Mahlplatten werden mit Schrauben befestigt. Der Austausch der Mahlplatten erfolgt durch Lösen der Schraubenverbindungen, meist 2 pro Mahlplatte, bei mehreren Mahlplatten pro Kreisscheibe und mehreren Kreisscheiben pro Mühle ein sehr großer Zeitaufwand. Ebenfalls sehr aufwendig ist der Einbau, da die Mahlplatten nicht nur mit den Schrauben befestigt, sondern auch abstandsgenau zum Stator ausgerichtet werden müssen.Generic mills are previously known from DE 35 43 370. At these mills Each grinding stage is attached to a circumference of a disc Variety of grinding plates formed. The grinding plates are fastened with screws. The replacement of the grinding plates is done by loosening the screw connections, usually 2 per grinding plate, with several grinding plates per disc and several Circular disks per mill a very large amount of time. Also very expensive the installation, since the grinding plates are not only fastened with the screws, but also must be aligned with the exact distance to the stator.

In der DE 197 00 429 wird eine Mühle beschrieben, die einen mit scheibenförmigen, radialen Trägern für die Mahlkörper ausgerüsteten Rotor ausweist. Die Träger sind auf ihrer Ober- und Unterseite mit Halterungen oder Ausnehmungen versehen, die die Mahlkörper entgegen der Fliehkraft halten. Auf dem Rotor sind zwischen zwei benachbarten radialen Trägern um den Rotor drehbare Klemmringe angebracht, die die Mahlkörper verriegeln. Bei dieser Mühle wurden die Schraubenverbindungen ersetzt. Diese Konstruktion ist aber fertigungstechnisch sehr aufwendig und die Montage ist nicht wesentlich erleichtert.In DE 197 00 429 a mill is described which has a disk-shaped, identifies radial carrier for the grinding media equipped rotor. The carriers are provided on its top and bottom with brackets or recesses, the Keep the grinding media against the centrifugal force. On the rotor are between two adjacent radial supports mounted around the rotor rotatable clamping rings, the lock the grinding media. In this mill were the screw connections replaced. However, this construction is very expensive to manufacture and the Mounting is not much easier.

In der DE 100 53 946 wird eine Mühle beschrieben, bei der der Rotor mit über der Umfangsfläche beabstandeten, vertikal orientierten Nuten einer prismatischen Führung versehen ist. Die austauschbaren Mahlwerkzeuge besitzen im Fußbereich eine den Nuten zur Führungsbildung angepaßte Form und können so am Rotor befestigt werden. Auch hier wird auf die Schraubenverbindungen zwischen Rotor und Mahlplatten verzichtet, sie werden aber durch aufwendig zu fertigende Führungen in Prisma- und Schwalbenschwanzform ersetzt, welche eine hohe Fertigungsgenauigkeit erfordern.In DE 100 53 946 a mill is described in which the rotor with over the Circumferentially spaced, vertically oriented grooves of a prismatic Leadership is provided. The exchangeable grinding tools have in the foot area a shape adapted to the grooves for guiding formation and can thus on the rotor be attached. Again, the screw connections between rotor and Mahlplatten omitted, but they are complicated to be produced guides in Prism and dovetail form replaced, which a high Require manufacturing accuracy.

Die DE 198 44 377 beschreibt eine Mahlstufe für eine gattungsgemäße Mühle. Der Rand des Schleudertellers ist mit Aussparungen mit Hinterschneidungen versehen, und jede der Mahlplatten weist Aussparungen auf, die mit den Aussparungen im Schleuderteller derart korrespondieren, daß die Mahlplatten in die Aussparungen im Schleuderteller einhängbar sind, so daß sie ihre radiale Lage bei den während der Rotation des Schleudertellers auftretenden Zentrifugalkräften beibehalten.DE 198 44 377 describes a grinding stage for a generic mill. Of the Edge of the centrifuge plate is provided with recesses with undercuts, and each of the refining plates has recesses with the recesses in the Whirling dish correspond in such a way that the refining plates in the recesses in Whirling dish are hung so that they are at their radial position during the Retain rotation of the centrifuge centrifugal forces occurring.

Die im Stand der Technik beschriebenen Mühlen weisen alle Mahlstufen auf, denen jeweils mehrere Mahlwerkzeuge zugeordnet werden und dort einzeln oder zusammen befestigt werden. Bei der DE 100 53 946 werden die Mahlstufen durch Kreisringschikanen begrenzt, die zwischen die Mahlwerkzeuge eingesetzt werden. Der Austausch oder die Montage der Mahlwerkzeuge ist bei druckstoßfester Ausführung, ohne große Türen, ohne Zerlegen der Maschine nicht möglich.The mills described in the prior art have all milling stages, which in each case several grinding tools are assigned and there individually or be fastened together. In DE 100 53 946, the milling stages through Limited annular baffles that are inserted between the grinding tools. The replacement or assembly of the grinding tools is pressure shock resistant Execution, without large doors, not possible without dismantling the machine.

Es ist die Aufgabe der Erfindung eine Mühle vorzuschlagen die es ermöglicht die Mahlwerkzeuge mühelos auszuwechseln sowie die Mahlraumgeometrie unter Einhaltung der Mahlspaltgenauigkeit schnell zu verändern, um geringen Montage- und Reparaturaufwand und kurze Stillstandszeiten der Maschine zu realisieren.It is the object of the invention to propose a mill which allows the Easily replace grinding tools and the Mahlraumgeometrie under Compliance with the grinding gap accuracy to change quickly, to small assembly and repair and short downtime of the machine to realize.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Bevorzugte Ausgestaltungen sind den Unteransprüchen zu entnehmen. Dazu wird im Gegensatz zum Stand der Technik die Mühle oberhalb des Rotors mit mindestens einer kleinen Öffnung versehen. Diese dient dazu die Mahlwerkzeuge in den Rotor einzuschieben oder herauszuziehen. Die Mahlwerkzeuge sind dafür in Form von Schlagleisten ausgebildet, die mehrere oder alle Mahlstufen der Mühle überdecken.This object is solved by the characterizing features of claim 1. Preferred embodiments can be found in the dependent claims. This is in the Contrary to the prior art, the mill above the rotor with at least a small opening provided. This serves the grinding tools in the rotor to push in or pull out. The grinding tools are in the form of Formed blow bars that cover several or all grinding stages of the mill.

Zur Aufnahme der Schlagleisten in den Rotor besitzen die übereinander angeordneten Kreisscheiben gleichmäßig über den Umfang angeordnete Aussparungen mit Hinterschneidungen. Unter der untersten Kreisscheibe befindet sich eine Scheibe die die Aussparungen teilweise abdeckt und ein Durchrutschen der Schlagleisten verhindert. So können die Schlagleisten von oben durch die Öffnung im Gehäuse problemlos in den Rotor eingeschoben werden und benötigen keine weitere Befestigung.To accommodate the blow bars in the rotor have the one above the other arranged circular disks arranged uniformly over the circumference Recesses with undercuts. Located under the lowest disc a disc which covers the recesses partially and a slipping of the Blow bars prevented. So can the blow bars from the top through the opening be easily inserted in the housing in the rotor and need no further attachment.

Die Schlagleisten können durch ihre leichte Austauschbarkeit an die entsprechende Mahlaufgabe angepaßt werden. Der Mahlspalt zwischen der Mahlbahn am Stator und den Schlagleisten kann durch einfaches Austauschen von Schlagleisten durch andere, mit anderer Tiefe und Profil, in seiner Breite und Geometrie leicht verändert werden. Der Mahlspalt kann damit an jede Aufgabe und an jedes Produkt angepaßt werden. Die Einhaltung der Genauigkeit der Mahlspaltweite ist gegeben.The blow bars can by their easy interchangeability to the appropriate Mahlaufgabe be adapted. The grinding gap between the grinding track on the stator and the blow bars can by simply replacing blow bars by others, with different depth and profile, slightly changed in width and geometry become. The grinding gap can thus be adapted to every task and every product become. Compliance with the accuracy of Mahlspaltweite is given.

Die einteiligen Schlagleisten weisen zwei Funktionen auf, eine Mahlschlägerfunktion und eine Haltefunktion. Der Bereich der Schlagleisten mit Haltefunktion ist so geformt, daß die Schlagleisten in die Aussparungen mit Hinterschneidung der Kreisscheiben auf dem Rotor von oben nach unten eingeführt werden können. Der Bereich mit Mahlschlägerfunktion ist im Einbauzustand radial, parallel zu Rotorachse ausgerichtet. Dieser Bereich kann über die Höhe mit beliebigem Profil und in beliebiger Tiefe gefertigt werden, so daß durch Austauschen der Schlagleisten die Mahlspaltweite und -geometrie einfach verändert werden.The one-piece blow bars have two functions, a Mahlschlägerfunktion and a hold function. The area of the blow bars with hold function is like this formed that the blow bars in the recesses with undercut of the Circular disks can be inserted on the rotor from top to bottom. Of the Area with Mahlschlägerfunktion is in the installed state radially, parallel to the rotor axis aligned. This range can be about the height with any profile and in Any depth can be made, so that by replacing the blow bars the Mahlspaltweite and geometry can be easily changed.

Die Schlagleisten können so ausgebildet sein, daß sie in den Spalt zwischen Kreisscheibe und Mahlbahn hineinragen, genau mit den Kreisscheiben abschneiden oder die Kreisscheiben weiter in den Mahlspalt hineinragen als die Schlagscheiben.The blow bars may be formed so that they are in the gap between Protruding the circular disk and the grinding track, cut exactly with the circular disks or the circular disks protrude farther into the grinding gap than the impact disks.

Bei Rotation des Rotors legen sich die Schläger an die Kontur der Aussparungen an und werden so gehaltenAs the rotor rotates, the clubs make contact with the contour of the recesses and are kept that way

Mit der vorgestellten Mühle lassen sich Umrüstungen einfach und schnell vornehmen, ohne die Mühle zerlegen zu müssen, da in einer Schlagleiste gleich eine Anzahl von Mahlwerkzeugen vereint sind. Es lassen sich die Mahlspaltweite und - geometrie ohne aufwendige Montagearbeiten und somit ohne lange Stillstandszeiten der Maschine verändern und auf die gewünschte Aufgabe anpassen. With the presented mill, conversions can be easily and quickly make without having to disassemble the mill, as in a bar equal to one Number of grinding tools are united. It can be the Mahlspaltweite and - geometry without complicated assembly work and thus without long downtimes change the machine and adapt to the desired task.

Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels und der Zeichnungen näher beschrieben:

  • Figur 1: Mühle
  • Figur 2: Rotor mit Schlagleiste
  • Figur 3: Schlagleisten in unterschiedlichen Ausführungen
  • Figur 4: Kreisscheiben und Schlagleisten mit Vorrichtung zum Einstellen des Mahlspaltes
    • The invention is described below with reference to an embodiment and the drawings:
  • Figure 1: mill
  • Figure 2: rotor with blow bar
  • Figure 3: blow bars in different versions
  • Figure 4: circular discs and blow bars with device for adjusting the Mahlspaltes

    • Die in Figur 1 dargestellte Variante der erfindungsgemäßen Mühle 1 besteht aus einem Rotor 2 welcher von einem Stator 3 mit Mahlbahn umschlossen wird. Der Rotor 2 wird von einer nicht dargestellten Antriebseinheit angetrieben. Die Mühle wird in dieser Ausführungsform von unten mit Mahlgut und Trägerluft beschickt. Am oberen Ende des Gehäuses befindet sich der Auslaß für Produkt und Trägergas. Ebenfalls am oberen Ende des Gehäuses befindet sich eine verschließbare Öffnung 7 durch welche die Schlagleisten 6 aus der Mühle 1 herausgezogen bzw. eingesetzt werden ohne die Mühle 1 zerlegen zu müssen. Der Rotor 2 besteht aus mehreren übereinander angeordneten Kreisscheiben 4 in welchen die Schlagleisten 6 gehalten werden.The illustrated in Figure 1 variant of the mill 1 according to the invention consists of a rotor 2 which is enclosed by a stator 3 with a grinding track. Of the Rotor 2 is driven by a drive unit, not shown. The mill is fed in this embodiment from below with regrind and carrier air. At the Upper end of the housing is the outlet for product and carrier gas. Also at the upper end of the housing is a closable opening 7 through which the blow bars 6 pulled out of the mill 1 or used will have to disassemble without the mill 1. The rotor 2 consists of several superimposed circular disks 4 in which the blow bars 6 held become.

    In Figur 2 ist der Rotor 2, mit den übereinander angeordneten Kreisscheiben 4 dargestellt. Die Kreisscheiben 4 weisen Aussparungen 8 auf, hier in Form von abgewinkelten Schlitzen, die die Schlagleisten 6 durch Einstecken von oben aufnehmen. Unterhalb der untersten Kreisscheibe ist eine Halteplatte angeordnet, welche ein Durchrutschen der Schlagleisten 6 verhindert.2 shows the rotor 2, with the circular disks 4 arranged one above the other shown. The circular discs 4 have recesses 8, here in the form of angled slots that the blow bars 6 by plugging in from above take up. Below the lowest circular disc, a holding plate is arranged, which prevents slipping of the blow bars 6.

    Die Schlagleisten 6 gemäß Figur 3 sind als abgekantete Bleche ausgeführt. Die Schlagleisten lassen sich in zwei Bereiche mit unterschiedlichen Funktionen unterteilen, die rechte Seite in Figur 3 stellt den Bereich mit Mahlschlägerfunktion dar und die linke Seite den Bereich mit Haltefunktion. Die Kontur des Schenkels mit Haltefunktion paßt in die Aussparungen 8 der Kreisscheiben 4. Wird der Rotor 2 in Rotation versetzt, liegen die Schlagleisten 6 an der radial äußeren Seite der Aussparung 8 an und werden so gehalten. The blow bars 6 according to Figure 3 are designed as folded sheets. The Blow bars can be divided into two sections with different functions Divide, the right side in Figure 3 represents the area with Mahlschlägerfunktion and the left side of the area with hold function. The contour of the thigh with Holding function fits in the recesses 8 of the circular discs 4. If the rotor 2 in Staggered rotation, the blow bars 6 are located on the radially outer side of the Recess 8 and are held so.

    Im oberen Bereich der Schlagleiste 6 ist eine Aussparung 9 vorgesehen in die ein Haken, welcher durch die Öffnung 7 in die Mühle eingeführt wurde, eingreift, um die Schlagleisten 6 aus der Maschine herauszuziehen oder einzuführen.In the upper part of the blow bar 6 a recess 9 is provided in the one Hook which has been inserted through the opening 7 in the mill, engages around the To pull or introduce blow bars 6 out of the machine.

    Die Schlagleisten 6 können im Mahlschlägerbereich unterschiedliche Konturen aufweisen. In Figur 3 ist die Schlagleiste mit gerader Kontur ausgefüht, während die Schlagleisten 6 in Figur 1 und 2 bauchig ausgeführt sind.The blow bars 6 can different contours in Mahlschlägerbereich exhibit. In Figure 3, the blow bar is executed with a straight contour, while the Blow bars 6 are executed in Figure 1 and 2 bulging.

    In Figur 4 ist eine weitere Ausführungsform der Schlagleisten 6 und der Kreisscheiben 4 für die erfindungsgemäße Mühle 1 dargestellt. Die Kreisscheiben 4 weisen schlitzförmige Aussparungen 8 am Rand auf, die sich rautenförmig erweitern, auf die eine zweite rautenförmige Erweiterung folgt. Die dazugehörigen Schlagleisten 6 sind rechteckig ausgeführt und weisen in den Abständen Bohrungen auf, die den Abständen der Kreisscheiben 4 auf dem Rotor 2 entsprechen. In die Bohrungen werden Schrauben oder Bolzen 10 eingesetzt. Werden die Schlagleisten 6 von oben in den Rotor 2 eingeschoben, befinden sich die Schrauben oder Bolzen 10 genau in den Aussparungen 8 der Kreisscheiben 4 und halten die Schläger 6 so im Rotor 2. Bei einer Ausstattung der Schlagleisten 6 mit Schrauben 10 kann die Tiefe mit der die Schlagleisten 6 in den Mahlspalt reichen mittels der Schrauben 10 eingestellt werden.In Figure 4 is another embodiment of the blow bars 6 and the Circular disks 4 shown for the mill 1 according to the invention. The circular disks 4 have slot-shaped recesses 8 at the edge, which extend in a diamond-shaped, followed by a second diamond-shaped extension. The corresponding blow bars 6 are rectangular and have holes in the intervals that the Intervals of the circular disks 4 on the rotor 2 correspond. In the holes Screws or bolts 10 are used. Be the blow bars 6 from above inserted into the rotor 2, the screws or bolts 10 are exactly in the recesses 8 of the circular disks 4 and hold the bat 6 so in the rotor. 2 With an equipment of the blow bars 6 with screws 10, the depth of the the blow bars 6 in the grinding gap rich set by means of screws 10 become.

    Die Erfindung ist nicht auf das vorstehend beschriebene und in den Zeichnungen dargestellt Ausführungsbeispiel beschränkt.
    Die Aussparungen in den Kreisscheiben können als Schlitze, die vom Rand weg radial oder unter einem Winkel zur radialen Richtung ausgeführt sein, um dann eine Hinterscheidung aufzuweisen. Diese Hinterschneidung kann einseitig oder beidseitig gestaltet sein und in jeglicher geometrischen Form ausgebildet sein, z. B. rechteckig, kreisförmig oder dreieckig.
    Die Schlagleisten können unterschiedlichste Konturen aufweisen z.B. gerade, bauchig aber auch in der Breite über die Höhe des Schlägers zu- oder abnehmen. Es sind aber auch aller Kombinationen dieser Konturen realisierbar sowie Vor- und Rücksprünge.     The invention is not limited to the embodiment described above and illustrated in the drawings.
    The recesses in the circular disks may be designed as slots which are radially away from the edge or at an angle to the radial direction, in order then to have a distinction. This undercut can be designed on one side or on both sides and be formed in any geometric shape, for. B. rectangular, circular or triangular.
    The blow bars can have a wide variety of contours, for example straight, bulbous but also increase in width across the height of the racket or decrease. But there are also all combinations of these contours feasible and projections and recesses.

    Da die Schlagleisten nicht alle Mahlebenen überdecken müssen, besteht die Möglichkeit durch unterschiedliche lange Schlagleisten z.B. im unteren Bereich der Mühle die Schläger dichter zu setzen als im oberen Bereich.Since the blow bars do not have to cover all Mahlebenen, there is the Possibility by different long blow bars, for. at the bottom of the Mill to put the clubs closer than in the upper area.

    Claims (9)

    Mühle 1 mit mehreren Mahlstufen zum Mischen, Zerkleinern, Mahlen, Trocknen, Desagglomerieren und Coatieren von trockenem oder feuchtem Gut, mit Einlaß- und Auslaßvorrichtungen für Trägergas und Gut, bestehend aus einem zylindrischen oder kegelstumpfförmigen, antreibbaren Rotor 2 mit mehreren übereinander angeordneten Kreisscheiben 4 und am Umfang verteilten, Schlagleisten 6, mit einem ebenfalls zylindrischen oder kegelstumpfförmigen, allen Mahlebenen gemeinsamen Stator 3, dadurch gekennzeichnet, daß sich die Schlagleisten 6 über mehrere, vorzugsweise alle Mahlstufen erstrecken und daß das Mühlengehäuse stirnseitig mindestens eine Öffnung 7 zur Bestückung des Rotors 2 mit austauschbaren, steckbaren Schlagleisten 6 aufweist.Mill 1 with several grinding stages for mixing, crushing, grinding, drying, deagglomerating and coating of dry or moist material, with inlet and outlet devices for carrier gas and Good, consisting of a cylindrical or frusto-conical, drivable rotor 2 with a plurality of superimposed circular disks 4 and Distributed on the circumference, blow bars 6, with a likewise cylindrical or frustoconical, all Mahlebenen common stator 3, characterized in that the blow bars 6 extend over several, preferably all grinding stages and that the mill housing frontally at least one opening 7 for equipping the rotor 2 with replaceable, plug-in blow bars 6 has. Mühle 1 nach Anspruch 1 dadurch gekennzeichnet, daß die Schlagleisten 6 über die Höhe derart geformt sind, daß sie mit ihrer zur Rotorachse gerichteten Seite in übereinander angeordneten Aussparungen 8 der Kreisscheiben 4 steckbar ohne weitere Befestigungsmittel gehalten werden.Mill 1 according to claim 1, characterized in that the blow bars 6 are formed over the height such that they are held with its directed to the rotor axis side in superimposed recesses 8 of the circular discs 4 pluggable without further fastening means. Mühle 1 nach Anspruch 1 und 2 dadurch gekennzeichnet, daß die Schlagleisten 6 an ihrem einen Ende eine Vorrichtung 9 aufweisen, durch welche sie mit einem Werkzeug aufgenommen und in die Maschine ein- und herausgeführt werden.Mill 1 according to claim 1 and 2, characterized in that the blow bars 6 have at one end a device 9, through which they are picked up with a tool and in and out of the machine. Mühle 1 nach Anspruch 1 bis 3 dadurch gekennzeichnet, daß die Schlagleisten 6 so gestaltet sind, daß sie über die Höhe einen konstanten oder einen sich ändernden Abstand zum Stator 3 aufweisenMill 1 according to claim 1 to 3, characterized in that the blow bars 6 are designed so that they have a constant or a varying distance to the stator 3 over the height Mühle 1 nach Anspruch 1 bis 4 dadurch gekennzeichnet, daß die Schlagleisten 6 über die Höhe einen oder mehrere Vor- und/oder Rücksprünge aufweisenMill 1 according to Claims 1 to 4, characterized in that the blow bars 6 have one or more projections and / or recesses over the height Mühle 1 nach Anspruch 1 bis 5 dadurch gekennzeichnet, daß die Schlagleisten 6 radial oder in einem Winkel zur Radialen ausgerichtet sind. Mill 1 according to claim 1 to 5, characterized in that the blow bars 6 are aligned radially or at an angle to the radial. Mühle 1 nach Anspruch 1 bis 6 dadurch gekennzeichnet, daß die Schlagleisten 6 abgekantete Bleche sind.Mill 1 according to claim 1 to 6, characterized in that the blow bars 6 are bent sheets. Mühle 1 nach Anspruch 1 bis 6 dadurch gekennzeichnet, daß die Schlagleisten 6 in Höhe der Kreisscheiben 4 Bohrungen mit Schrauben oder Bolzen 10 aufweisen und diese das Halten der Schlagleisten 6 in den Kreisscheiben 4 übernehmen.Mill 1 according to claim 1 to 6, characterized in that the blow bars 6 in the amount of circular discs 4 holes with screws or bolts 10 and these take over the holding of the blow bars 6 in the circular discs 4. Mühle 1 nach Anspruch 8 dadurch gekennzeichnet, daß der Abstand der Schlagleisten 6 vom Stator 3 durch die Schrauben oder Bolzen 10 einstellbar ist.Mill 1 according to claim 8, characterized in that the distance of the blow bars 6 from the stator 3 by the screws or bolts 10 is adjustable.
    EP05005932A 2004-03-24 2005-03-18 Mill with replacable beater strip Not-in-force EP1579915B1 (en)

    Priority Applications (2)

    Application Number Priority Date Filing Date Title
    SI200531495T SI1579915T1 (en) 2004-03-24 2005-03-18 Mill with replacable beater strip
    PL05005932T PL1579915T3 (en) 2004-03-24 2005-03-18 Mill with replacable beater strip

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE102004014258A DE102004014258C5 (en) 2004-03-24 2004-03-24 Mill with interchangeable blow bars
    DE102004014258 2004-03-24

    Publications (2)

    Publication Number Publication Date
    EP1579915A1 true EP1579915A1 (en) 2005-09-28
    EP1579915B1 EP1579915B1 (en) 2011-12-28

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    EP05005932A Not-in-force EP1579915B1 (en) 2004-03-24 2005-03-18 Mill with replacable beater strip

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    EP (1) EP1579915B1 (en)
    AT (1) ATE538869T1 (en)
    DE (1) DE102004014258C5 (en)
    ES (1) ES2378169T3 (en)
    PL (1) PL1579915T3 (en)
    SI (1) SI1579915T1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102010009894A1 (en) 2010-03-02 2011-09-08 Rolf Schatz Rotor grinding tool for use in rotor impact mills for fine grinding, drying or grind drying, coating or deagglomeration of wet or dry material, has integrated turbo wheel-air classifier

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102009020714A1 (en) 2009-05-11 2010-11-18 Pallmann Maschinenfabrik Gmbh & Co Kg Device for processing feedstock
    DE102011089615A1 (en) * 2011-12-22 2013-06-27 Bhs-Sonthofen Gmbh Crushing device and use of such a shredding device
    DE202016002207U1 (en) 2016-04-08 2016-05-02 Hosokawa Alpine Aktiengesellschaft Steckschläger for a mill

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    DE3334783A1 (en) * 1982-09-28 1984-03-29 Pallmann Maschinenfabrik GmbH & Co KG, 6660 Zweibrücken Mounting for adjustable impact plates on impact rotors of comminuting machines
    DE3543370A1 (en) * 1985-12-07 1987-06-11 Jackering Altenburger Masch MILL WITH SEVERAL GRINDINGS
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    US2585943A (en) 1943-03-01 1952-02-19 Harriet F Derrick Impact rotor for stone breakers
    US3851829A (en) * 1973-01-19 1974-12-03 Rheinstahl Ag Device for crushing solid materials
    DE29606424U1 (en) 1996-04-06 1997-07-31 Gebrüder Bauermeister & Co Verfahrenstechnik GmbH & Co, 22844 Norderstedt Mill for grinding food, luxury foods and for chemical, pharmaceutical and mineral substances
    DE19844377A1 (en) 1998-09-28 2000-03-30 Jackering Altenburger Masch Grinding step for mill with centrifugal plate has grinding plates detachably fixed and hung from undercut recesses in centrifugal plate to retain radial position under centrifugal force
    DE10053946A1 (en) 2000-09-29 2002-04-18 Noll Gmbh Ulf Fine-grinding mill rotor is vee-grooved inside for exchangeable foot-adapted grinding tools which alternate with recesses or projections for exchangeable grinding bars using metal or ceramic tooling.

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102010009894A1 (en) 2010-03-02 2011-09-08 Rolf Schatz Rotor grinding tool for use in rotor impact mills for fine grinding, drying or grind drying, coating or deagglomeration of wet or dry material, has integrated turbo wheel-air classifier

    Also Published As

    Publication number Publication date
    EP1579915B1 (en) 2011-12-28
    ATE538869T1 (en) 2012-01-15
    SI1579915T1 (en) 2012-05-31
    DE102004014258A1 (en) 2005-10-20
    DE102004014258C5 (en) 2010-09-16
    ES2378169T3 (en) 2012-04-09
    DE102004014258B4 (en) 2008-04-10
    PL1579915T3 (en) 2012-05-31

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