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EP3104977A1 - Counter-rotating pinned disc mill - Google Patents

Counter-rotating pinned disc mill

Info

Publication number
EP3104977A1
EP3104977A1 EP15700564.6A EP15700564A EP3104977A1 EP 3104977 A1 EP3104977 A1 EP 3104977A1 EP 15700564 A EP15700564 A EP 15700564A EP 3104977 A1 EP3104977 A1 EP 3104977A1
Authority
EP
European Patent Office
Prior art keywords
grinding
housing part
pin mill
shaft
mahlgutzuführung
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
EP15700564.6A
Other languages
German (de)
French (fr)
Other versions
EP3104977B1 (en
Inventor
Wolfgang Holl
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.)
Hamburg Dresdner Maschinenfabriken Verwaltungsgese
Original Assignee
Hamburg Dresdner Maschinenfabriken 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 Hamburg Dresdner Maschinenfabriken GmbH filed Critical Hamburg Dresdner Maschinenfabriken GmbH
Publication of EP3104977A1 publication Critical patent/EP3104977A1/en
Application granted granted Critical
Publication of EP3104977B1 publication Critical patent/EP3104977B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
    • B02C13/205—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors arranged concentrically
    • 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
    • B02C13/22—Disintegrating by mills having rotary beater elements ; Hammer mills with intermeshing pins ; Pin Disk Mills
    • 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
    • B02C13/282—Shape or inner surface of mill-housings
    • 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
    • B02C13/286—Feeding or discharge
    • 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
    • B02C13/286—Feeding or discharge
    • B02C2013/28618—Feeding means

Definitions

  • the invention relates to an opposing pin mill, in particular for the milling of food, according to the preamble of the main claim.
  • Pin mills are used for grinding various bulk goods.
  • a material to be mowed is usually introduced close to the axis into a grinding space between two coaxially arranged grinding disks.
  • the grinding discs have mutually arranged in concentric circles grinding pins.
  • the supplied millbase is transported by the rotation of the grinding disc to the outside and thereby crushed by passing past each other grinding pins of the grinding discs until the desired particle size is reached.
  • the use of two instead of one driven grinding disc with counter-rotating pin mills doubles the relative speed of the counter-rotating pins, thereby achieving better grinding.
  • Opposite pin mills are often used to grind food.
  • WO 2013 085 478 A1 discloses a grinding device with two coaxially arranged hollow grinding shafts, through which organic material pourable into the grinding chamber is fed, wherein grinding disks parallel to one another are arranged at the inner ends of the grinding shafts with grinding elements arranged on concentric circular paths.
  • the object of the invention is to provide a counter-rotating pin mill, in particular for the milling of food, which is easy and wide to open to the grinding chamber, the grinding shafts and the grinding discs very easy to clean and to be able to wait.
  • At least one housing part along the grinding axis via bearing means is slidably formed.
  • the bearing means consist of at least two sliding arrangements arranged parallel to the grinding axis and are with the first Genzousetei! connected.
  • the housing parts can be easily pulled apart, the coaxial arrangement of the grinding shafts and thus the grinding discs can not be changed.
  • the grinding pins of the opposite grinding discs will touch each other and become bent.
  • a very good accessibility to the grinding chamber is obtained by the use of only two sliding arrangements.
  • the sliding arrangements in the first housing part arranged sliding bushes with guided in this and firmly connected to the second housing part sliding axes.
  • the Gleitan pants on hydraulically driven actuating arrangements make it easy to open and close the case without having to manually move the heavy case halves.
  • each housing part has a drive fixedly connected thereto, which is operatively connected to the grinding shaft via a drive belt and via a first drive-side pulley and a second grinding shaft side pulley.
  • This embodiment makes it possible to use two independent drives to adjust the direction of rotation and rotational speed of the material to be mowed and the desired grinding result accordingly.
  • a permanent connection between the respective grinding shafts and drives minimizes the effort to open the Housing.
  • the connection via an Antribsriemen it is possible in a special way to feed the material to be ground axially through the waves.
  • at least one grinding shaft has at its drive end a Mahlgutzu entry which is connected via Mahlgutflansche fixed to the respective hollow grinding shaft.
  • At least one Mahlgutzu exchange is arranged relatively movable to the respective housing part.
  • the pin mill has cavities for a temperature control medium. Through each of these, a heating or a cooling medium can be passed so that an optimum processing temperature for the respective grinding stock can be achieved and maintained.
  • FIG. 1 shows a perspective view of a pin mill according to the invention in an open representation
  • Figure 2 is a vertical section along the grinding axis of a pin mill according to the invention in an open view in a perspective view, and
  • FIG. 3 shows a vertical section along the grinding axis 13 of a pin mill according to the invention.
  • an inventive counter-rotating pin mill 10 is shown.
  • This has a housing assembly 12 made of stainless steel, which consists of two housing parts 28, 30, which form a grinding chamber 17 consists.
  • the first housing part 28 has a base-side base plate 112, which is fixedly connected via connecting means not shown through the through holes 114 with the bottom or sub-structures not shown.
  • each housing part 28, 30 coaxial with a grinding axis 13 each have a hollow grinding shaft 14, 16 is arranged.
  • grinding disks 22, 24 arranged parallel to one another on mutually facing ends 18, 20 of the grinding shafts 14, 16 are fastened with mutually concentrically arranged grinding pins 25 with fastening means.
  • the grinding pins 25 may be integrally formed with the grinding discs 22, 24 or as individual grinding pins 25, for example, provided with threads in corresponding threaded holes, or by press fits in corresponding through holes in the grinding discs 22, 24 and fixedly connected are.
  • the grinding shafts 14, 16 are, as can be clearly seen in FIG.
  • the grinding-shaft-side pulleys 88, 90 are in each case operatively connected to the drives 76, 78 via drive-side pulleys 84, 86.
  • the drives 76, 78 are fixedly connected to fastening means each having a housing part 28, 30. Both drives 76, 78 have control devices 96, 98, by means of which the direction of rotation and rotational speed of the respective drives 76, 78 and the associated grinding discs 22, 24 is adjustable.
  • the first housing part 28 has a tangential Mahlgutauslass not shown and to the grinding axis 13 coaxially arranged circular opening 116 whose diameter is greater than the diameter of the second dial 24.
  • the housing parts of the second housing part 30 surrounding the circular opening 116 are designed as thickened sealing surfaces 118 formed in the direction of the first housing half 28. In equal to the grinding axis 13 distances two-piece closure assemblies 120 are arranged at equal intervals.
  • each closure assembly 120 consists of a parallel to the grinding axis 13 rotatably formed screw assembly 122 in the second housing part 30 and a corresponding thread assembly 124 which is fixedly disposed in the first housing part 28 consists.
  • the two housing parts 28, 30 are connected via slide assemblies 32, 34 with each other.
  • the slide assemblies 32, 34 each arranged in the first housing part 28 sliding bushings 40, 42, whose axes of rotation parallel to Grinding axis 13 are aligned and in which fixedly connected to the second Genzoteif 30 sliding axes 36, 38 are slidably disposed.
  • the slide assemblies 32, 34 also have rotationally symmetric and coaxial with the slide axles 36, 38 arranged damping elements 44, 46. They each have a cylindrical buffer block 48, 50 which is arranged on the drive-side end of the second housing part 30 with fastening means 52, 54 coaxial with the slide axles 36, 38.
  • Hydraulically operable actuating arrangements 56, 58 are located parallel to and in each case adjacent to the slide arrangements 32, 34.
  • Each actuating arrangement 56, 58 has an actuating cylinder 60, 62 which is fixedly connected to the first housing part 28 and a movable piston 64, 66 which with fastening means 72, 74 fixedly connected to the second housing part 30, on.
  • a hydraulic connection 68, 70 is arranged, to which a hydraulic unit, not shown, is connected.
  • both housing parts 28, 30 are firmly and fluid-tightly connected to 10 bar overpressure.
  • the adjusting arrangements 56, 58 hydraulically actuated locked in their minimum end positions.
  • the closure assemblies 120 are also closed by the Versch raubungen 122 in the respective thread assemblies 124.
  • the grinding chamber 17 is supplied on both sides arranged Mahlgutzu exchangeen which are fixedly connected to the respective Mahlgutflanschen 108, 110, fed through the mutually coaxially arranged hollow grinding shafts 14, 16 regrind. This can be done in different ways.
  • the transport can take place via conveying screws which extend up to the grinding chamber 17 and rotate in the grinding shafts 14, 16.
  • pneumatic conveying may also make sense, in which a gaseous conveying medium is added to the material to be ground, so that the two grinding material streams are centered in the grinding chamber 17 at high speed meet each other. As a result, pre-shredding of the substances to be milled is achieved even during the grinding material feed.
  • the grinding discs 22, 24 are set in opposite directions in rotation.
  • the grinding stock outlet which is preferably arranged in the bottom area of the grinding space 17.
  • the housing assembly 12 are opened, the shutter assemblies 120 are manually opened after switching off the drives and then with the aid of hydraulically actuated actuators 56, 58, the two housing parts 28, 30 moved apart along the grinding axis.
  • the second housing part slides with the associated slide axles 36, 38 through the leading slide bushes 40, 42 until the actuators 56, 58 have reached their maximum extended position.
  • the drives 76, 78 and the Mahlgutzu® en remain firmly connected to the respective housing parts. In the now easily accessible through the circular opening 116 grinding chamber 17 cleaning and maintenance can be performed.
  • the two housing parts 28, 30 can be moved together again with the aid of the adjusting arrangements 56, 58 until the sealing surface 118 of the second housing part 30 touches the opposite surface of the first housing part 28 and after screwing the opposing screw assemblies 122 with the threaded assemblies 124 tight closes.
  • the grinding process can be restarted directly.
  • the scope of the present application is not limited to the embodiment described.
  • pneumatically or electrically driven actuating arrangements 56, 58 can also be used. A purely manual separation of the two housing parts 28, 30 is conceivable.
  • the cylindrical grinding pins 25 can also have a different geometric shape in order to achieve a desired grinding result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention relates to a counter-rotating pinned disc mill (10), in particular for grinding food, consisting of a housing arrangement (12) with at least a first and a second housing part (28, 30), two grinding shafts (14, 16) arranged therein coaxially in relation to one another on a grinding spindle (13), of which at least one grinding shaft (14, 16) has a grinding material inlet and is of a hollow configuration, through which grinding material can be fed to a grinding chamber (17), two grinding discs (22, 24), arranged parallel to one another on the mutually facing ends (18, 20) of the grinding shafts (14, 16), and a grinding material outlet, through which grinding material can be discharged from the grinding chamber (17), wherein at least one housing part (28, 30) is formed in such a way that it can be moved along the grinding spindle (13) by bearing means.

Description

B E S C H R E I B U N G  DESCRIPTION

Gegenläufige Stiftmühle Opposite pin mill

Die Erfindung bezieht sich auf eine gegenläufige Stiftmühle, insbesondere zur Vermahlung von Lebensmitteln, gemäß dem Oberbegriff des Hauptanspruchs. Stiftmühlen werden zur Vermahlung verschiedener schüttfähiger Güter eingesetzt. Dabei wird ein zu vermählendes Gut zumeist achsnah in einen Mahlraum zwischen zwei koaxial angeordnete Mahlscheiben eingebracht. Die Mahlscheiben weisen wechselseitig in konzentrischen Kreisen angeordnete Mahlstifte auf. Das zugeführte Mahlgut wird durch die Rotation der Mahlscheibe nach außen transportiert und dabei durch die sich aneinander vorbeibewegenden Mahlstifte der beiden Mahlscheiben zerkleinert, bis die gewünschte Partikelgröße erreicht ist. Durch den Einsatz von zwei statt nur einer angetriebenen Mahlscheibe bei gegenläufigen Stiftmühlen verdoppelt sich die relative Geschwindigkeit der sich einander entgegen bewegenden Stifte, wodurch eine bessere Vermahlung erreicht wird. Gegenläufige Stiftmühlen werden oftmals zur Vermahlung von Lebensmittel genutzt. Bei der Verarbeitung von Lebensmitteln gibt es strenge gesetzliche (hygienische) Vorgaben. So ist es notwendig, den Mahlraum der Stiftmühlen regelmäßig und zumeist manuell und ohne den Einsatz von gesundheitsschädlichen Mitteln zu reinigen. Dabei ist es aufgrund des großen Durchmessers der ineinandergreifenden Mahlscheiben und der dicht aneinander rotierenden Mahlstifte nicht möglich, das Mahlgehäuse durch einen einfachen Schwenkmechanismus, bei dem eine Mahlscheibe an einem Gehäuseteil befestigt ist, zu öffnen. Die Mahlstifte würden sich berühren und würden verbiegen. The invention relates to an opposing pin mill, in particular for the milling of food, according to the preamble of the main claim. Pin mills are used for grinding various bulk goods. In this case, a material to be mowed is usually introduced close to the axis into a grinding space between two coaxially arranged grinding disks. The grinding discs have mutually arranged in concentric circles grinding pins. The supplied millbase is transported by the rotation of the grinding disc to the outside and thereby crushed by passing past each other grinding pins of the grinding discs until the desired particle size is reached. The use of two instead of one driven grinding disc with counter-rotating pin mills doubles the relative speed of the counter-rotating pins, thereby achieving better grinding. Opposite pin mills are often used to grind food. When processing food, there are strict legal (hygienic) requirements. So it is necessary to clean the grinding chamber of the pin mills regularly and usually manually and without the use of harmful agents. In this case, it is not possible due to the large diameter of the intermeshing grinding discs and the tightly rotating grinding pins to open the grinding housing by a simple pivoting mechanism in which a grinding disc is attached to a housing part. The grinding pins would touch and bend.

In der WO 93 04 780 AI wird eine Anlage zur Vermahlung von Getreide offenbart, welche eine Stiftmühle mit zwei gegenläufig angetriebenen Mahlscheiben aufweist. Eine Öffnung des Gehäuses zu Reinigungszwecken scheint nicht vorgesehen zu sein. In WO 93 04 780 AI a plant for grinding cereals is disclosed which a pin mill with two counter-rotating Has grinding discs. An opening of the housing for cleaning purposes does not seem to be provided.

In der DE 28 28 029 AI wird eine Anlage zum Vermählen von Hopfen offenbart, die auch eine gegenläufige Stiftmühle aufweist. Diese Stiftmühle weist eine einseitig axiale Mahlgutzuführung sowie ein senkrecht zur Mahlachse in der Mahlebene zweigeteiltes Gehäuse auf. Der exakte Öffnungsmechanismus wird nicht offenbart. Die WO 2013 085 478 AI schließlich offenbart eine Mahlvorrichtung mit zwei koaxial angeordneten hohlen Mahlwellen, durch die dem Mahlraum schüttfähiges organisches Material zugeführt wird, wobei an den inneren Enden der Mahlwellen zueinander parallele Mahlscheiben mit auf konzentrischen Kreisbahnen angeordneten Mahlgliedern angeordnet sind. Gerade bei gegenläufigen Stiftmühlen mit beidseitig axialer Zuführung ist es sehr schwierig, auf den Mahlraum zur Reinigung oder Wartung zuzugreifen, ohne zuvor und danach große Ab- und Aufrüstarbeiten durchführen zu müssen. Die Mahlgutzuführvorrichtungen und die Antriebe müssen aufwendig von den Gehäuseteilen getrennt werden. Im Stand der Technik ist keine befriedigende Lösung offenbart. In DE 28 28 029 AI a plant for grinding hops is disclosed, which also has a counter-rotating pin mill. This pin mill has a one-sided axial Mahlgutzuführung and a perpendicular to the grinding axis in the cooking plane two-part housing. The exact opening mechanism is not disclosed. Finally, WO 2013 085 478 A1 discloses a grinding device with two coaxially arranged hollow grinding shafts, through which organic material pourable into the grinding chamber is fed, wherein grinding disks parallel to one another are arranged at the inner ends of the grinding shafts with grinding elements arranged on concentric circular paths. Especially with counter-rotating pin mills with axial feed on both sides, it is very difficult to access the grinding chamber for cleaning or maintenance, without having to carry out before and after major dismantling and upgrading. The Mahlgutzuführvorrichtungen and the drives must be laboriously separated from the housing parts. In the prior art, no satisfactory solution is disclosed.

Aufgabe der Erfindung ist es, eine gegenläufige Stiftmühle, insbesondere zur Vermahlung von Lebensmitteln zu schaffen, die einfach und weit zu öffnen ist, um den Mahlraum, die Mahlwellen und die Mahlscheiben besonders einfach reinigen und Warten zu können. The object of the invention is to provide a counter-rotating pin mill, in particular for the milling of food, which is easy and wide to open to the grinding chamber, the grinding shafts and the grinding discs very easy to clean and to be able to wait.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass mindestens ein Gehäuseteil längs der Mahlachse über Lagermittel verschiebbar ausgebildet ist. This object is achieved in that at least one housing part along the grinding axis via bearing means is slidably formed.

In einer bevorzugten Ausführungsform bestehen die Lagermittel aus mindestens zwei parallel zur Mahlachse angeordneten Gleitanordnungen und sind mit dem ersten Gehäusetei! verbunden. Somit können die Gehäuseteile einfach auseinander gezogen werden, wobei die koaxiale Anordnung der Mahlwellen und somit auch der Mahlscheiben dabei nicht verändert werden kann. Beim Schließen des Gehäuses besteht infolgedessen nicht die Gefahr, dass sich die Mahlstifte der gegenüberliegenden Mahlscheiben berühren und dadurch verbogen werden. Zudem verbleibt durch die Nutzung von nur zwei Gleitanordnungen eine sehr gute Zugänglichkeit zu dem Mahlraum erhalten. In a preferred embodiment, the bearing means consist of at least two sliding arrangements arranged parallel to the grinding axis and are with the first Gehäusetei! connected. Thus, the housing parts can be easily pulled apart, the coaxial arrangement of the grinding shafts and thus the grinding discs can not be changed. As a result, when closing the housing, there is no risk that the grinding pins of the opposite grinding discs will touch each other and become bent. In addition, a very good accessibility to the grinding chamber is obtained by the use of only two sliding arrangements.

In einer vorteilhaften weiterführenden Ausführungsform weisen die Gleitanordnungen im ersten Gehäuseteil angeordnete Gleitbuchsen mit in diesen geführten und fest mit dem zweiten Gehäuseteil verbundenen Gleitachsen auf. Durch den Einsatz von Gleitbuchsen mit einer gewissen axialen Erstreckung können die, vor allem im geöffneten Zustand durch das Gewicht des zweiten Gehäuseteils auftretenden Biegemomente wirkungsvoll aufgenommen werden. In an advantageous further embodiment, the sliding arrangements in the first housing part arranged sliding bushes with guided in this and firmly connected to the second housing part sliding axes. Through the use of sliding bushes with a certain axial extension, the bending moments occurring, in particular in the opened state by the weight of the second housing part, can be effectively absorbed.

In einer weiterführenden bevorzugten Ausführungsform weist die Gleitanordnungen hydraulisch angetriebene Stellanordnungen auf. Durch diese lässt sich das Gehäuse einfach öffnen und schließen, ohne manuell die schweren Gehäusehälften bewegen zu müssen. In a further preferred embodiment, the Gleitanordnungen on hydraulically driven actuating arrangements. These make it easy to open and close the case without having to manually move the heavy case halves.

In einer bevorzugten Ausführungsform weist jedes Gehäuseteil einen fest damit verbundenen Antrieb auf, der über einen Antriebsriemen und über eine erste antriebsseitige Riemenscheibe und eine zweite mahlwellenseitige Riemenscheibe mit der Mahlwelle wirkverbunden ist. In a preferred embodiment, each housing part has a drive fixedly connected thereto, which is operatively connected to the grinding shaft via a drive belt and via a first drive-side pulley and a second grinding shaft side pulley.

Diese Ausführungsform ermöglicht es, zwei unabhängige Antriebe zu nutzen, um Drehrichtung und Rotationsgeschwindigkeit dem zu vermählenden Gut und dem gewünschten Mahlergebnis entsprechend anzupassen. Zudem minimiert eine dauerhafte Verbindung zwischen den jeweiligen Mahlwellen und Antrieben den Aufwand zum Öffnen des Gehäuses. Durch die Anbindung über einen Antribsriemen ist es auf besondere Art und Weise möglich, das Mahlgut axial durch die Wellen zuzuführen. In einer weiterführenden bevorzugten Ausführungsform weist mindestens eine Mahlwelle an ihrem antriebsseitigen Ende eine Mahlgutzuführung auf, die über Mahlgutflansche fest mit der jeweiligen hohlen Mahlwelle verbunden ist. Durch eine dauerhaft feste Verbindung zwischen der jeweiligen Mahlgutzuführung und der entsprechenden hohlen Mahlwelle kann das Gehäuse sehr einfach geöffnet werden, ohne dass die Mahlgutbeschickung vom Mahlgutflansch gelöst werden muss. This embodiment makes it possible to use two independent drives to adjust the direction of rotation and rotational speed of the material to be mowed and the desired grinding result accordingly. In addition, a permanent connection between the respective grinding shafts and drives minimizes the effort to open the Housing. The connection via an Antribsriemen it is possible in a special way to feed the material to be ground axially through the waves. In a further preferred embodiment, at least one grinding shaft has at its drive end a Mahlgutzuführung which is connected via Mahlgutflansche fixed to the respective hollow grinding shaft. By a permanently fixed connection between the respective Mahlgutzuführung and the corresponding hollow grinding shaft, the housing can be very easily opened without the Mahlgutbeschickung must be solved by Mahlgutflansch.

In einer alternativen bevorzugten Variante ist mindestens eine Mahlgutzuführung relativ bewegbar zu dem jeweiligen Gehäuseteil angeordnet. Dadurch, dass ein Teil der Mahlgutzuführung koaxial zur jeweiligen hohlen Mahlwelle in dieser axial verschiebbar angeordnet ist, können die Mahlgutzuführungen fest mit der ersten Gehäusehälfte oder dem Untergrund verbunden bleiben. In einer weiteren bevorzugten Ausführungsform weist die Stiftmühle Hohlräume für ein Temperiermedium auf. Durch diese kann jeweils ein erwärmendes oder ein abkühlendes Medium geleitet werden, so dass eine für das jeweilige Mahlgut optimale Verarbeitungstemperatur erreicht und gehalten werden kann. In an alternative preferred variant, at least one Mahlgutzuführung is arranged relatively movable to the respective housing part. The fact that a part of the Mahlgutzuführung coaxial with the respective hollow grinding shaft is arranged axially displaceable in this, the Mahlgutzuführungen can remain firmly connected to the first housing half or the ground. In a further preferred embodiment, the pin mill has cavities for a temperature control medium. Through each of these, a heating or a cooling medium can be passed so that an optimum processing temperature for the respective grinding stock can be achieved and maintained.

Es wird eine gegenläufige Stiftmühle, insbesondere zur Vermahlung von Lebensmitteln, geschaffen, die schnell und einfach weit zu öffnen ist, so dass der Mahlraum mit seinen hohlen Mahlwellen und den Mahlscheiben gut zugänglich und einfach zu reinigen ist. Nach der Reinigung ist die Stiftmühle einfach wieder zu verschließen, ohne dabei Gefahr zu laufen, durch nicht koaxiale Mahlwellen die Mahlzähne der Mahlscheiben zu beschädigen. Im Folgenden wird unter Bezugnahme auf die Zeichnungen die erfindungsgemäße Vorrichtung näher erläutert, es zeigen: Figur 1 eine perspektivische Ansicht einer erfindungsgemäßen Stiftmühle in geöffneter Darstellung, It creates a counter-rotating pin mill, especially for the milling of food, which is fast and easy to open wide, so that the grinding chamber with its hollow grinding shafts and grinding discs is easily accessible and easy to clean. After cleaning, the pin mill is easy to close without risk of damaging the grinding teeth of the grinding discs by non-coaxial grinding shafts. The device according to the invention will be explained in more detail below with reference to the drawings, in which: FIG. 1 shows a perspective view of a pin mill according to the invention in an open representation,

Figur 2 einen senkrechten Schnitt längs der Mahlachse einer erfindungsgemäßen Stiftmühle in geöffneter Darstellung in perspektivischer Ansicht, und Figure 2 is a vertical section along the grinding axis of a pin mill according to the invention in an open view in a perspective view, and

Figur 3 einen senkrechten Schnitt längs der Mahlachse 13 einer erfindungsgemäßen Stiftmühle. In Figur 1 ist eine erfindungsgemäße gegenläufige Stiftmühle 10 dargestellt. Diese weist eine Gehäuseanordnung 12 aus Edelstahl auf, die aus zwei Gehäuseteilen 28, 30, welche einen Mahlraum 17 bilden, besteht. Der erste Gehäuseteil 28 weist eine bodenseitige Grundplatte 112 auf, die über nicht dargestellte Verbindungsmittel durch die Durchgangslöcher 114 mit dem Boden oder auch nicht dargestellten Unterkonstruktionen fest verbunden ist. In jedem Gehäuseteil 28, 30 ist koaxial zu einer Mahlachse 13 jeweils eine hohl ausgeführte Mahlwelle 14, 16 angeordnet. 3 shows a vertical section along the grinding axis 13 of a pin mill according to the invention. In Figure 1, an inventive counter-rotating pin mill 10 is shown. This has a housing assembly 12 made of stainless steel, which consists of two housing parts 28, 30, which form a grinding chamber 17 consists. The first housing part 28 has a base-side base plate 112, which is fixedly connected via connecting means not shown through the through holes 114 with the bottom or sub-structures not shown. In each housing part 28, 30 coaxial with a grinding axis 13 each have a hollow grinding shaft 14, 16 is arranged.

Wie in der geschnittenen Ansicht in Figur 2 besonders gut zu sehen ist, sind auf den einander zugewandten Enden 18, 20 der Mahlwellen 14, 16 zueinander parallel angeordnete Mahlscheiben 22, 24 mit wechselseitig konzentrisch angeordneten Mahlstiften 25 mit Befestigungsmitteln fixiert. Dabei können die Mahlstifte 25 einteilig mit den Mahlscheiben 22, 24 oder auch als einzelne Mahlstifte 25 ausgebildet sein, die zum Beispiel mit Gewinden versehen in korrespondierenden Gewindelöchern, oder auch durch Presspassungen in korrespondierenden Durchgangsbohrungen in den Mahlscheiben 22, 24 angeordnet und mit diesen fest verbunden sind. Die Mahlwellen 14, 16 sind, wie in Figur 3 gut zu erkennen ist, jeweils in Lagerblöcken in Lagergehäusen 92, 94 um die Mahlachse 13 drehbar gelagert angeordnet und weisen an den jeweils äußeren Enden fest verbundene mahlwellenseitige Riemenscheiben 88, 90 auf. Über Antriebsriemen 80, 82 sind die mahlwellenseitigen Riemenscheiben 88, 90 jeweils über antriebsseitige Riemenscheiben 84, 86 mit den Antrieben 76, 78 wirkverbunden. Die Antriebe 76, 78 sind mit Befestigungsmitteln fest mit jeweils einem Gehäuseteil 28, 30 verbunden. Beide Antriebe 76, 78 weisen Steuervorrichtungen 96, 98 auf, mit Hilfe derer die Rotationsrichtung und Rotationsgeschwindigkeit der jeweiligen Antriebe 76, 78 und der damit verbundenen Mahlscheiben 22, 24 einstellbar ist. An den antriebsseitigen Enden der Mahlwellen 14, 16 sind fest mit den Lagergehäusen 92, 94 verbundene Mahlgutflansche 108, 110 angeordnet, an denen nicht dargestellte Mahlgutzuführvorrichtung angeschlossen sind. Zudem weist der erste Gehäuseteil 28 einen nicht dargestellten tangentialen Mahlgutauslass und eine zur Mahlachse 13 koaxial angeordnete kreisförmige Öffnung 116 auf, deren Durchmesser größer als der Durchmesser der zweiten Wählscheibe 24 ist. Die die kreisförmige Öffnung 116 umgebenden Gehäuseteile des zweiten Gehäuseteils 30 sind als in Richtung der ersten Gehäusehälfte 28 ausgebildete verdickte Dichtfläche 118 ausgebildet. In zur Mahlachse 13 gleichen Abständen sind zweiteilige Verschlussanordnungen 120 in gleichen Abständen zueinander angeordnet. As can be seen particularly clearly in the sectioned view in FIG. 2, grinding disks 22, 24 arranged parallel to one another on mutually facing ends 18, 20 of the grinding shafts 14, 16 are fastened with mutually concentrically arranged grinding pins 25 with fastening means. In this case, the grinding pins 25 may be integrally formed with the grinding discs 22, 24 or as individual grinding pins 25, for example, provided with threads in corresponding threaded holes, or by press fits in corresponding through holes in the grinding discs 22, 24 and fixedly connected are. The grinding shafts 14, 16 are, as can be clearly seen in FIG. 3, each mounted in bearing blocks in bearing housings 92, 94 so as to be rotatable about the grinding axis 13 and have pulley shafts 88, 90 fixedly connected to the respective outer ends. Via drive belts 80, 82, the grinding-shaft-side pulleys 88, 90 are in each case operatively connected to the drives 76, 78 via drive-side pulleys 84, 86. The drives 76, 78 are fixedly connected to fastening means each having a housing part 28, 30. Both drives 76, 78 have control devices 96, 98, by means of which the direction of rotation and rotational speed of the respective drives 76, 78 and the associated grinding discs 22, 24 is adjustable. At the drive-side ends of the grinding shafts 14, 16 are fixedly connected to the bearing housings 92, 94 Mahlgutflansche 108, 110 are arranged, which are not shown Mahlgutzuführvorrichtung connected. In addition, the first housing part 28 has a tangential Mahlgutauslass not shown and to the grinding axis 13 coaxially arranged circular opening 116 whose diameter is greater than the diameter of the second dial 24. The housing parts of the second housing part 30 surrounding the circular opening 116 are designed as thickened sealing surfaces 118 formed in the direction of the first housing half 28. In equal to the grinding axis 13 distances two-piece closure assemblies 120 are arranged at equal intervals.

In der geschnittene Darstellung der Figur 3 ist besonders gut zu erkennen, dass jede Verschlussanordnung 120 aus einer parallel zur Mahlachse 13 drehbar ausgebildeten Schraubenanordnung 122 im zweiten Gehäuseteil 30 und einer korrespondierenden Gewindeanordnung 124, die fest im ersten Gehäuseteil 28 angeordnet ist, besteht. Die beiden Gehäuseteile 28, 30 sind über Gleitanordnungen 32, 34 miteinander verbunden. Dabei weisen die Gleitanordnungen 32, 34 jeweils im ersten Gehäuseteil 28 angeordnete Gleitbuchsen 40, 42 auf, deren Rotationsachsen parallel zur Mahlachse 13 ausgerichtet sind und in denen fest mit dem zweiten Gehäuseteif 30 verbundene Gleitachsen 36, 38 verschiebbar angeordnet sind. Die Gleitanordnungen 32, 34 weisen zudem rotationssymmetrische und koaxial zu den Gleitachsen 36, 38 angeordnete Dämpfungselemente 44, 46 auf. Sie weisen jeweils einen zylinderförmigen Pufferblock 48, 50 auf, der auf dem antriebsseitigen Ende des zweiten Gehäuseteils 30 mit Befestigungsmittel 52, 54 koaxial zu den Gleitachsen 36, 38 angeordnet ist. Parallel zu und jeweils neben den Gleitanordnungen 32, 34 befinden sich hydraulisch betätigbare Stellanordnungen 56, 58. Jede Stellanordnung 56, 58 weist einen Stellzylinder 60, 62, der mit dem ersten Gehäuseteil 28 fest verbunden ist, und einen bewegbaren Kolben 64, 66, der mit Befestigungsmitteln 72, 74 mit dem zweiten Gehäuseteil 30 fest verbunden ist, auf. Zudem ist am äußeren Ende des Stellzylinders 60, 62 ein Hydraulikanschluss 68, 70 angeordnet, an den eine nicht dargestellte Hydraulikeinheit angeschlossen ist. In the sectional view of Figure 3 is particularly well recognized that each closure assembly 120 consists of a parallel to the grinding axis 13 rotatably formed screw assembly 122 in the second housing part 30 and a corresponding thread assembly 124 which is fixedly disposed in the first housing part 28 consists. The two housing parts 28, 30 are connected via slide assemblies 32, 34 with each other. In this case, the slide assemblies 32, 34 each arranged in the first housing part 28 sliding bushings 40, 42, whose axes of rotation parallel to Grinding axis 13 are aligned and in which fixedly connected to the second Gehäuseteif 30 sliding axes 36, 38 are slidably disposed. The slide assemblies 32, 34 also have rotationally symmetric and coaxial with the slide axles 36, 38 arranged damping elements 44, 46. They each have a cylindrical buffer block 48, 50 which is arranged on the drive-side end of the second housing part 30 with fastening means 52, 54 coaxial with the slide axles 36, 38. Hydraulically operable actuating arrangements 56, 58 are located parallel to and in each case adjacent to the slide arrangements 32, 34. Each actuating arrangement 56, 58 has an actuating cylinder 60, 62 which is fixedly connected to the first housing part 28 and a movable piston 64, 66 which with fastening means 72, 74 fixedly connected to the second housing part 30, on. In addition, at the outer end of the adjusting cylinder 60, 62, a hydraulic connection 68, 70 is arranged, to which a hydraulic unit, not shown, is connected.

Im regulären Arbeitsbetrieb einer erfindungsgemäßen Stiftmühle 10 sind beide Gehäuseteile 28, 30 fest und fluiddicht bis 10 bar Überdruck verbunden. Dazu sind die Stellanordnungen 56, 58 hydraulisch aktuiert in ihren minimalen Endstellungen arretiert. Die Verschlussanordnungen 120 sind zudem durch die Versch raubungen 122 in den jeweiligen Gewindeanordnungen 124 geschlossen. Dem Mahlraum 17 wird über beidseitig angeordnete Mahlgutzuführungen, welche fest mit den jeweiligen Mahlgutflanschen 108, 110 verbunden sind, durch die einander gegenüber koaxial angeordneten hohlen Mahlwellen 14, 16 Mahlgut zugeführt. Dieses kann auf verschiedene Arten erfolgen. So kann bei feuchtem oder klebrigen Gut der Transport über bis an den Mahlraum 17 reichende, in den Mahlwellen 14, 16 rotierende Förderschnecken erfolgen. Alternativ kann auch eine pneumatische Förderung Sinn ergeben, bei der dem Mahlgut ein gasförmiges Fördermedium hinzugefügt wird, so dass die beiden Mahlgutströme mittig im Mahlraum 17 mit großer Geschwindigkeit aufeinander treffen. Dadurch wird schon bei der Mahlgutzuführung eine Vorzerkleinerung der zu vermählenden Stoffe erreicht. In normal operation of a pin mill 10 according to the invention, both housing parts 28, 30 are firmly and fluid-tightly connected to 10 bar overpressure. For this purpose, the adjusting arrangements 56, 58 hydraulically actuated locked in their minimum end positions. The closure assemblies 120 are also closed by the Versch raubungen 122 in the respective thread assemblies 124. The grinding chamber 17 is supplied on both sides arranged Mahlgutzuführungen which are fixedly connected to the respective Mahlgutflanschen 108, 110, fed through the mutually coaxially arranged hollow grinding shafts 14, 16 regrind. This can be done in different ways. Thus, in the case of moist or sticky goods, the transport can take place via conveying screws which extend up to the grinding chamber 17 and rotate in the grinding shafts 14, 16. Alternatively, pneumatic conveying may also make sense, in which a gaseous conveying medium is added to the material to be ground, so that the two grinding material streams are centered in the grinding chamber 17 at high speed meet each other. As a result, pre-shredding of the substances to be milled is achieved even during the grinding material feed.

Durch die von den Antrieben 76, 78 über die antriebsseitigen Riemenscheiben 84, 86, die Antriebsriemen 80, 82 und die mahlwellenseitigen Riemenscheiben 88, 90 in Rotation gebrachten Mahlwellen 14, 16, werden die Mahlscheiben 22, 24 gegenläufig in Rotation versetzt. Durch die auf das Mahlgut wirkenden Fliehkräfte wird dieses zwischen den Mahlstiften fein vermählen und kann nach Durchtritt durch den Mahlbereich über den, bevorzugt im Bodenbereich des Mahlraums 17 angeordneten Mahlgutauslass, abgeführt werden. By the driven by the drives 76, 78 on the drive side pulleys 84, 86, the drive belt 80, 82 and the grinding shaft side pulleys 88, 90 grinding shafts 14, 16, the grinding discs 22, 24 are set in opposite directions in rotation. As a result of the centrifugal forces acting on the grinding stock, it is finely ground between the grinding pins and, after passing through the grinding area, can be removed via the grinding stock outlet, which is preferably arranged in the bottom area of the grinding space 17.

Muss nun, zum Beispiel zur regelmäßigen Reinigung des Mahlraums 17 oder zum Wechsel von einzelnen Mahlstiften 25, die Gehäuseanordnung 12 geöffnet werden, werden nach Abschaltung der Antriebe zuerst die Verschlussanordnungen 120 manuell geöffnet und danach mit Hilfe der hydraulisch aktuierten Stellanordnungen 56, 58 die beiden Gehäuseteile 28, 30 längs der Mahlachse auseinander gefahren. Dabei gleitet der zweite Gehäuseteil mit den verbundenen Gleitachsen 36, 38 durch die führenden Gleitbuchsen 40, 42, bis die Stellanordnungen 56, 58 ihre maximal ausgefahrene Position erreicht haben. Dabei bleiben die Antriebe 76, 78 und auch die Mahlgutzuführungen fest mit den jeweiligen Gehäuseteilen verbunden. In dem nun durch die kreisförmige Öffnung 116 leicht zugänglichen Mahlraum 17 können Reinigungs- und Wartungsarbeiten durchgeführt werden. Nach deren Beendigung können die beiden Gehäuseteile 28, 30 wieder mit Hilfe der Stellanordnungen 56, 58 zusammengefahren werden, bis die Dichtfläche 118 des zweiten Gehäuseteils 30 die gegenüberliegende Fläche des ersten Gehäuseteils 28 berührt und nach Verschraubung der einander gegenüberliegenden Schraubenanordnungen 122 mit den Gewindeanordnungen 124 dicht verschließt. Der Mahlvorgang kann direkt wieder gestartet werden. Es sollte deutlich sein, dass der Schutzbereich der vorliegenden Anmeldung nicht auf das beschriebene Ausführungsbeispiel beschränkt ist. Insbesondere können statt der hydraulisch angetriebenen Stellanordnungen 56, 58 auch pneumatisch oder elektrisch angetriebene Stellanordnungen 56, 58 genutzt werden. Auch eine rein manuelle Trennung der beiden Gehäuseteile 28, 30 ist denkbar. Now, for example, for regular cleaning of the grinding chamber 17 or to change individual grinding pins 25, the housing assembly 12 are opened, the shutter assemblies 120 are manually opened after switching off the drives and then with the aid of hydraulically actuated actuators 56, 58, the two housing parts 28, 30 moved apart along the grinding axis. In this case, the second housing part slides with the associated slide axles 36, 38 through the leading slide bushes 40, 42 until the actuators 56, 58 have reached their maximum extended position. The drives 76, 78 and the Mahlgutzuführungen remain firmly connected to the respective housing parts. In the now easily accessible through the circular opening 116 grinding chamber 17 cleaning and maintenance can be performed. After their completion, the two housing parts 28, 30 can be moved together again with the aid of the adjusting arrangements 56, 58 until the sealing surface 118 of the second housing part 30 touches the opposite surface of the first housing part 28 and after screwing the opposing screw assemblies 122 with the threaded assemblies 124 tight closes. The grinding process can be restarted directly. It should be understood that the scope of the present application is not limited to the embodiment described. In particular, instead of the hydraulically driven actuating arrangements 56, 58, pneumatically or electrically driven actuating arrangements 56, 58 can also be used. A purely manual separation of the two housing parts 28, 30 is conceivable.

Um das Mahlgut bei einer bestimmten Temperatur zu vermählen, ist es zudem denkbar, über zirkulierende Medien, wie zum Beispiel Stickstoff, in Hohlräumen der Mahlscheiben 22, 24 diese zu erwärmen oder abzukühlen und dadurch auf die Vermahlungstemperatur Einfluss zu nehmen. In order to grind the material to be ground at a certain temperature, it is also conceivable, via circulating media, such as nitrogen, in cavities of the grinding disks 22, 24 to heat or cool them and thereby influence the grinding temperature.

Auch denkbar wäre es, die Gehäuseanordnung 12 so zu gestalten, dass die Dichtfläche 118 der beiden Gehäuseteile 28, 30 in der Mahlebene angeordnet ist. It would also be conceivable to design the housing arrangement 12 such that the sealing surface 118 of the two housing parts 28, 30 is arranged in the milling plane.

Die zylinderförmigen Mahlstifte 25 können zudem auch eine andere geometrische Form aufweisen, um ein gewünschtes Mahlergebnis zu erreichen. The cylindrical grinding pins 25 can also have a different geometric shape in order to achieve a desired grinding result.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS 1. Gegenläufige Stiftmühle (10), insbesondere zur Vermahlung von Lebensmitteln, bestehend aus 1. Opposite pin mill (10), in particular for the milling of food, consisting of einer Gehäuseanordnung (12) mit zumindest einem ersten und einem zweiten Gehäuseteil (28, 30),  a housing arrangement (12) having at least a first and a second housing part (28, 30), zwei darin koaxial zueinander auf einer Mahlachse (13) angeordneten Mahlwellen (14, 16), von denen mindestens eine Mahlwelle (14, 16) einen Mahlguteinlass aufweist und hohl ausgeführt ist, durch die einem Mahlraum (17) Mahlgut zuführbar ist,  two grinding shafts (14, 16) arranged coaxially with one another on a grinding axis (13), of which at least one grinding shaft (14, 16) has a grinding material inlet and is hollow, through which grinding material (17) grinding material can be fed, zwei auf den einander zugewandten Enden (18, 20) der Mahlwellen (14, 16) zueinander parallel angeordneten Mahlscheiben (22, 24), einem Mahlgutauslass, durch den aus dem Mahlraum (17) Mahlgut abführbar ist,  two grinding disks (22, 24) arranged parallel to one another on the mutually facing ends (18, 20) of the grinding shafts (14, 16), a grinding stock outlet through which grinding stock can be discharged from the grinding space (17), dadurch gekennzeichnet, dass  characterized in that mindestens ein Gehäuseteil (28, 30) längs der Mahlachse (13) über Lagermittel verschiebbar ausgebildet ist.  at least one housing part (28, 30) along the grinding axis (13) is formed displaceably via bearing means. 2. Stiftmühle (10) nach Anspruch 1, 2. pin mill (10) according to claim 1, dadurch gekennzeichnet, dass  characterized in that die Lagermittel aus mindestens zwei parallel zur Mahlachse (13) angeordneten Gleitanordnungen (32, 34) bestehen, die im ersten Gehäuseteil (28) vorgesehen sind.  the bearing means consist of at least two parallel to the grinding axis (13) arranged slide assemblies (32, 34) which are provided in the first housing part (28). 3. Stiftmühle (10) nach Anspruch 2, 3. pin mill (10) according to claim 2, dadurch gekennzeichnet, dass  characterized in that die Gleitanordnungen (32, 34) im ersten Gehäuseteil (28) angeordnete Gleitbuchsen (40, 42) mit in diesen geführten und fest mit dem zweiten Gehäuseteil (30) verbundene Gleitachsen (36, 38) aufweisen. the slide assemblies (32, 34) in the first housing part (28) arranged sliding bushes (40, 42) with guided in this and fixed to the second housing part (30) sliding axes (36, 38). 4. Stiftmühle (10) nach Anspruch 3, 4. pin mill (10) according to claim 3, dadurch gekennzeichnet, dass  characterized in that die Gleitanordnungen (32, 34) hydraulisch angetriebene the slide assemblies (32, 34) hydraulically driven Stellanordnungen (56, 58) aufweisen. Stellanordnungen (56, 58). 5. Stiftmühle (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass 5. pin mill (10) according to one of the preceding claims, characterized in that jedes Gehäuseteif (28, 30) einen fest damit verbundenen Antrieb (76, 78) aufweist, der über einen Antriebsriemen (80, 82) und über eine erste antriebsseitige Riemenscheibe (84, 86) und eine zweite mahlwellenseitige Riemenscheibe (88, 90) mit der Mahlwelle (14, 16) wirkverbunden ist.  each Gehäuseteif (28, 30) has a fixedly connected drive (76, 78) via a drive belt (80, 82) and via a first drive-side pulley (84, 86) and a second grinding-shaft-side pulley (88, 90) the grinding shaft (14, 16) is operatively connected. 6. Stiftmühle (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass 6. pin mill (10) according to any one of the preceding claims, characterized in that mindestens eine Mahlwelle (14, 16) an ihrem antriebsseitigen Ende eine Mahlgutzuführung aufweist, die über Mahlgutflansche (108, 110) mit der Mahlwelle (14, 16) verbunden ist.  at least one grinding shaft (14, 16) has at its drive-side end a Mahlgutzuführung which is connected via Mahlgutflansche (108, 110) with the grinding shaft (14, 16). 7. Stiftmühle (10) nach Anspruch 6, 7. pin mill (10) according to claim 6, dadurch gekennzeichnet, dass  characterized in that die Mahlgutzuführung fest mit dem jeweiligen Gehäuseteil (28, 30) verbunden ist, so dass keine Relativbewegung zwischen der Mahlgutzuführung und dem jeweiligen Gehäuseteil (28, 30) möglich ist.  the Mahlgutzuführung is firmly connected to the respective housing part (28, 30), so that no relative movement between the Mahlgutzuführung and the respective housing part (28, 30) is possible. 8. Stiftmühle (10) nach Anspruch 6 oder 7, 8. pin mill (10) according to claim 6 or 7, dadurch gekennzeichnet, dass  characterized in that die Mahlgutzuführung relativ bewegbar zu dem jeweiligen Gehäuseteil (28) angeordnet ist. the Mahlgutzuführung is arranged relatively movable to the respective housing part (28). 9. Stiftmühle (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass 9. pin mill (10) according to one of the preceding claims, characterized in that die Gehäuseanordnung (12) Hohlräume für ein Temperiermedium aufweist.  the housing arrangement (12) has cavities for a temperature control medium.
EP15700564.6A 2014-02-13 2015-01-14 Counter-rotating pinned disc mill Active EP3104977B1 (en)

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PCT/EP2015/050542 WO2015121012A1 (en) 2014-02-13 2015-01-14 Counter-rotating pinned disc mill

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US20170165675A1 (en) 2017-06-15
US10413907B2 (en) 2019-09-17
TR201802798T4 (en) 2018-03-21
DE102014101786B4 (en) 2016-12-22
DE102014101786A1 (en) 2015-08-13
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EP3104977B1 (en) 2017-11-29
CN206351062U (en) 2017-07-25

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