EP2383037B1 - Dispositif de broyage de matériaux de chargement - Google Patents

Dispositif de broyage de matériaux de chargement Download PDF

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Publication number
EP2383037B1
EP2383037B1 EP11003437.8A EP11003437A EP2383037B1 EP 2383037 B1 EP2383037 B1 EP 2383037B1 EP 11003437 A EP11003437 A EP 11003437A EP 2383037 B1 EP2383037 B1 EP 2383037B1
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EP
European Patent Office
Prior art keywords
stator
transversal
segments
transversal side
rotor
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.)
Active
Application number
EP11003437.8A
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German (de)
English (en)
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EP2383037A1 (fr
Inventor
Hartmut Pallmann
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.)
Pallmann Maschinenfabrik GmbH and Co KG
Original Assignee
Pallmann Maschinenfabrik GmbH and Co KG
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Publication of EP2383037A1 publication Critical patent/EP2383037A1/fr
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Publication of EP2383037B1 publication Critical patent/EP2383037B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/282Shape or inner surface of mill-housings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18Disintegrating 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C2013/145Disintegrating 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 device for comminuting feed material according to the preamble of patent claim 1.
  • Such devices are assigned to the field of mechanical engineering, in particular the conversion of a starting material into a final product of a predetermined shape and size by means of comminution.
  • Such devices include disc mills, such as those from the DE 202 16 056 U1 are known.
  • Such disc mills have a rotor which cooperates within a housing with a stator.
  • the rotor consists essentially of a carrier disk, which is equipped over its outer peripheral portion with lying in the disk plane grinding tools.
  • the grinding tools are in axial distance while maintaining a Mahlspalts stationary stator opposite, which are arranged on the housing inner wall concentrically around the axis of rotation around.
  • Both rotor and stator tools can be formed by segments and are screwed to the carrier disk or the housing wall. This very time-consuming work not only increases the assembly costs for wear-related tool change, but also increases the proportion of downtime of the disc mill, which precludes efficient use. For this reason, disk mills already use rotor and stator tools, which consist of a complete ring that can be exchanged as a whole. Although the tool change times are thereby shortened, the profile of the grinding tools is limited to a substantially radial corrugation in terms of production technology.
  • the state of the art also includes mills, such as those in the EP 2 070 596 A1 are described.
  • the mill disclosed therein has a cone-shaped housing, the inner circumference of which is provided with a hollow truncated cone-shaped Mahlbahnmbi to form a stator.
  • Mahlbahnmbies coaxial with a rotor is arranged, whose rotor tools are formed by pendulum-mounted, radially aligned impact plates that stroke while maintaining a Mahlspalts on the inner circumference of the stator along.
  • the hollow truncated cone-shaped Mahlbahnnot forms the stator and is used as a whole in the housing, with a clamping ring on the larger diameter end face of the housing securing against axial changes in position of the grinding track insert guaranteed.
  • a substantially coaxial corrugation on the inner circumference of the grinding track insert is possible due to the monolithic design of the Mahlbahncons here.
  • Variations in the geometry of the corrugation in order to adapt the surface of the stator tools effective for the comminution to a specific feed material or to achieve a specific processing result are not possible.
  • the US 3,873,047 discloses a breaker with a rotor with clubs and a cylindrical housing surrounding the rotor. On the inner circumference of the housing a plurality of axially extending, an impact path forming crushing bars is arranged. The crushing bars are held in position on one side by a circumferential dovetail flange and on the other side by clips.
  • mill segments of a grinding path are arranged on the inner circumference of a cylindrical housing, which are defined between the housing bottom and the housing cover.
  • the object of the invention is to further develop known devices with regard to the shortest possible downtimes during the tool change and the greatest possible flexibility in the adaptation of the stator tools to the feed material and the properties of the end product.
  • the invention it is possible at the same time to satisfy the mutually exclusive requirements in the prior art for the fastest possible change of the comminution tools on the one hand and the greatest possible freedom in selecting the type of corrugation of the comminution tools within a device.
  • stator By segment-like design of the stator, it is possible that two successive segments have a different corrugation, whereby both the intensity of the crushing and the residence time of the feed material in the crushing can be controlled. At the same time the segments are placed for mounting only in the stator and then fixed with a clamping element in position. In this way, extremely short tool change-related downtimes can be achieved.
  • the invention enables a more economical operation of the device according to the invention by a simplified tool change with simultaneous qualitative improvement of the processing result due to the ability to better adapt the stator to the respective conditions.
  • the Fig. 1 and 2 give a vertical and horizontal section through a device according to the invention in the form of a mill 1 again.
  • a frame-like, made of steel profiles substructure 2 which forms with its top a horizontal platform 3 with a central opening 4.
  • the substructure 1 carries the mill 1 according to the invention, whose axis of rotation 5 is oriented perpendicular to the platform 3 and extends through the central opening 4.
  • the mill 1 comprises a housing 6 with a lower part 7, which is formed by a cylindrical trough.
  • the bottom 8 of the tub has a circular, concentric with the axis of rotation 5 opening 9. Upwards, the lower part 7 is open, wherein the edge is formed by a circumferential annular flange 10.
  • the annular flange 10 serves as a support and Attachment of a concentric bearing ring 11, which is formed angularly in cross-section and the horizontal leg is connected to the annular flange 10.
  • the housing 6 continues in a bell-shaped, hollow truncated cone-shaped upper part 12, the larger diameter underside of which is open and assigned to the lower part 7 and whose smaller diameter upper side has an opening 14 which is bounded by a circumferential, radially inwardly pointing collar 13.
  • a removable lid 15 is detachably screwed to the collar 13 and has a concentric feed opening 16, to which a supply nozzle 17 connects.
  • the arrow 18 embodies the feed material which is fed axially to the mill 1 through the feed pipe 17.
  • the larger diameter underside of the upper part 12 has a circumferential on the outer circumference annular flange 19, which is supported by adjusting screws 20 on the vertical leg of the bearing ring 11.
  • adjusting screws 20 on the vertical leg of the bearing ring 11.
  • the housing portion between the annular flange 19 and the larger diameter end face of the upper part 12 of the outer housing shell is cylindrical in order to be accurately guided and axially displaceable within the bearing ring 11.
  • the distance between the lower part 7 and upper part 12 can be adjusted.
  • the housing upper part 12 forms with its inner circumference the stator, along which fifteen, the crushing path-forming segments 21 are arranged.
  • the longitudinal sides 22 of the segments 21 are designed for this purpose so that they each extend in axial planes with respect to the axis of rotation 5.
  • the circumferentially butted segments 21 form in this way the stator of the rotor-stator system.
  • the cross section of the segments 21 is above all Fig. 2 out. Accordingly, the segments 21 have a plane rear side 23 and lie only with their longitudinal sides formed by the rear side 23 and longitudinal sides 22 in each case linearly on the conical inner jacket of the upper part 12, resulting in a polygonal-like course of the back of the crushing path.
  • the linear bearing along the longitudinal edges also facilitates mounting against flat storage, since production-related inaccuracies within the storage area would hinder a rich resting of the segments 21.
  • the inside of the upper housing part 12 has a constant curvature, formed between the upper housing part 12 and the rear sides 23 of the segments 21 cavities 58 with a circular segment-shaped cross section, which can serve for example for the passage of a cooling medium.
  • the front side 24 of the segments 21 has a circular arc-shaped curvature and is equipped with a corrugation.
  • the size of the resulting between the segments 21 and the inside of the housing upper part 12 cavities 58 depends inter alia on the number of segments 21.
  • the invention thus prefers a number of segments between 12 and 20, preferably between 15 and 18.
  • a segment 21 thus extends over a 1/12 to 1/20, preferably over 1/15 to 1/18 of the inner circumference of the stator.
  • the rotor 26 rotating about the rotation axis 5.
  • the rotor 26 comprises a shaft 27, which is held coaxially with the rotation axis 5 within a cylindrical shaft bearing 28 in bearing groups 29.
  • the shaft bearing 28 is inserted over part of its length in the opening 9 in the bottom 8 of the lower part 7, wherein the shaft bearing 28 outer circumferential annular flange 30 for positionally accurate attachment of the rotor 26 relative to the housing 6 is used.
  • On the outside of the housing 6 lying end of the shaft 27 is seated a multi-pulley 31 which is coupled to a drive not shown.
  • a baffle plate 32 is fixed concentrically to the rotation axis 5 frontally.
  • the top of the feed opening 16 facing upper side arranged in the peripheral region Schlagklötze 33 form a first crushing stage for the reaching over the supply nozzle 17 into the mill 1 feed.
  • first carrier disk 34 At an axial distance to the baffle plate 32 is also a concentric sitting on the shaft 27 first carrier disk 34, on the circumference of pairs rotor tools in the form of impact plates 35 are arranged. In this case, the effective edges of the impact plates 35 run while maintaining a radial working gap parallel to generatrices of the Stator. Plan parallel and at an axial distance is arranged concentrically on the drive shaft 27 in the direction of the lower part 7 a first baffle plate 36.
  • the first baffle plate 36 serves to control the residence time and the material flow through the mill 1 according to the invention.
  • a further comminution stage is formed by a second carrier disk 37, which is fastened concentrically on the shaft 27 and, like the first carrier disk 34, is equipped with impact plates 35 on its circumference.
  • a second carrier disk 37 which is fastened concentrically on the shaft 27 and, like the first carrier disk 34, is equipped with impact plates 35 on its circumference.
  • In the direction of flow through the mill 1 finally follows a second, concentric on the shaft 27 seated baffle plate 38th
  • Fig. 3 the attachment of the segments 21 on the upper part 12 of the housing 6 is shown in detail. It shows Fig. 3 a cut, as in Fig. 2 is indicated with III - III and thus falls into the butt joint of two adjacent segments 21.
  • Each segment 21 has its attachment to the upper part 12 along the two transverse sides 25.1 and 25.2 each have a circular arc-shaped strip portion 39.1 and 39.2.
  • the strip sections 39.1 and 39.2 of all segments 21 form a ring strip which runs concentrically around the axis of rotation 5.
  • clamping ring 41 For attachment of the segments 21 in the region of the larger diameter underside of the upper part 12 there is also a concentric extending clamping ring 41 which can be clamped by means of screws 42 against the end face of the upper part 12.
  • the clamping ring 41 extends with its inner circumference radially inwardly over the opening on the underside of the upper part 12 and has an annular projection 43 projecting axially out of the ring plane, which when placing the clamping ring 41 onto the upper part 12 already fitted with segments 21, the strip sections 39 engages behind the second transverse side 25.2 of the segments 21 and thus ensures their positionally accurate position.
  • FIG. 4 represents a simplified in terms of the preparation of the device solution.
  • the positive connection in the region of the first transverse side 25.1 is not generated via a tongue and groove construction. Instead, the first transverse side 25.1 and the upper housing part 12 in the common contact surface are flat and lie in a radial plane with respect to the axis of rotation 5.
  • the two embodiments are the same 3 and 4 , so that what is said there applies.
  • Fig. 5 corresponds to the anchoring of the first transverse side 25.1 in the upper housing part 12 of the below Fig. 3 described.
  • the second transverse side 25.2 has a plane surface extending in a radial plane, on which a correspondingly designed clamping ring 41.1 acts.
  • both the first upper side 25.1 and the second upper side 25.2 of the segments 21 are flat and are held in the axial direction by corresponding planar bearing surfaces in the upper housing part 12 and on the clamping ring 41.1.
  • the embodiment according to Fig. 6 is sort of a combination of in the 4 and 5 A position assurance of the segments 21 in the radial direction results from the annular arrangement of the segments 21 about the axis of rotation 5, wherein the segments 21 support each other over their longitudinal sides 22 and movements are prevented radially inwardly by the vault formation.
  • Fig. 7 to 13 relate to different arrangements of the segments 21 on stationary or rotating support elements of disc mills, for example, according to the mentioned in the introduction to the description DE 202 16 056 U1 , wherein the fastening planes each lie in a radial plane with respect to the axis of rotation 5.
  • a support member such as a rigid or rotating carrier disk or a rigid housing wall.
  • the comminution tools in the form of segments 21 arranged in a circle about the axis of rotation 5 can be seen.
  • a recess 45 which is rectangular in cross-section and runs concentrically around the axis of rotation 5 is arranged in the surface of the support element 44.
  • the recess 45 is formed by a bottom 46, an outer wall 47 and an inner wall 48.
  • the recess 45 serves to receive the segments 21 which abut with their rear side 23 over the entire surface of the bottom 46 and with its first transverse side 25.1 over the entire surface of the outer wall 47.
  • the radial size of the recess 45 is chosen so that there is an annular space between the inner wall 48 and the segments 21, which serves to receive a clamping ring 41.3.
  • the clamping ring is supported 41.3 with its inner circumference on the inner wall 48, while the outer periphery decreases to form an oblique peripheral surface in the direction of the bottom 46 side facing.
  • about this inclined surface of the clamping ring 41 cooperates with the segments 21, the second transverse side 25.2 extends linearly to form a correspondingly inclined surface to the rear side 23. In this way, with the tightening of the screws 42 via the clamping ring 41.3 a radially outwardly against the outer wall 47 and axially against the bottom 46 acting on the clamping force transmitted to the segments 21.
  • Fig. 8 differs therefrom only in that the outer wall 47 is undercut towards the bottom 46.
  • the complementarily shaped first transverse side 25 of the segment 21 engages behind the undercut wall 47 and is additionally secured in this way against axial lifting.
  • the support member 44 has no channel-like recess 45, but a substantially planar surface, which has only on the outer peripheral edge protruding from the plane of an annular wall 50, the radially inwardly facing side 49 undercut is such that these areas correspond to the corresponding outer peripheral area of the Fig. 8 correspond to the arrangement shown.
  • the clamping ring 41.4 has an outer circumference corresponding to the in Fig. 8 So described acts with the inclined second transverse side 25.2 as in the Fig. 8 described together.
  • Fig. 10 corresponds in many parts of the under Fig. 7 described. Differences exist in the region of the second transverse side 25.2 of the segments 21, which widens stepwise to the rear side 23 of the segments 21 to form a rectangular strip section 39.1.
  • the clamping ring 41 has a complementarily shaped outer periphery with an annular flange 51, which biases the strip portion 39.1 axially against the bottom 46.
  • Fig. 11 resembles the under Fig. 10 described with the difference that the segments 21 in the region of the first transverse side 25.1 to the rear side 23 towards stepwise wide and thereby form a strip portion 39.2, which engages positively in a corresponding groove 52 in the outer wall 47.
  • the segments 21 thus have an axisymmetric cross section.
  • the clamping ring 41.6 has as in Fig. 11 described a circumferential on the outer circumference annular flange 51.
  • a second annular flange 53 which is arranged in an analogous manner on the inner circumference of the clamping ring 41.6.
  • the inner wall 48 has an annular recess 55 to a complementary geometry, so that when tightening the screws 42 of the clamping ring 41.6 is supported both on the strip portion 39.1 of the second transverse side 25.2 and recess 55 in the inner wall 48 and thus symmetrical is charged.
  • the transverse sides 25.1 and 25.2 which extend in the direction of the rear side 23 each have strip sections 39.3 and 39.4, with bevels 54 inclined towards the outer circumference or inner circumference in the direction of the rear side 23.
  • the clamping ring 41.7 which is complementary in the contact region to the segment 21, it additionally becomes to the directed against the bottom 46 clamping force generates a radially outward component.
  • For a symmetrical loading of the clamping ring 41.7 provide an axisymmetric configuration of the clamping ring 41.7 in cross section and a complementary shape of the wall 48th

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

Claims (9)

  1. Dispositif pour le broyage de matériau d'alimentation avec un rotor (26) tournant autour d'un axe (5) à l'intérieur d'un carter (6) avec des outils de rotor (35) disposés dans la zone circonférentielle extérieure sur un cercle circonférentiel et un stator correspondant au rotor (26) et ayant dans la zone circonférentielle extérieure des outils de stator disposés concentriquement et formant une bande de broyage, les outils de rotor (35) et les outils de stator se faisant face à une certaine distance formant ainsi un écart de travail, les outils de stator étant formés de segments (21) dont la face arrière (23) vient s'appuyer sur le stator et dont les faces longitudinales (22) butent les unes contre les autres pour former la bande de broyage, les segments (21) étant fixés sur le stator par complémentarité de forme respectivement avec leur première face transversale (25.1) et leur seconde face transversale (25.2), le stator présentant un élément de serrage (41) qui interagit avec la première face transversale (25.1) et/ou la seconde face transversale (25.2) pour serrer les segments (21) contre le stator, le rotor (26) et le stator ayant une forme cylindrique ou conique, caractérisé en ce que les segments (21) ont une face arrière (23) plane et viennent s'appuyer contre le stator le long de leur bords longitudinaux formés par la face arrière (23) et les faces longitudinales (22) et ce en formant des cavités (58)
  2. Dispositif selon la revendication 1, caractérisé en ce que la première face transversale (25.1) et/ou la seconde face transversale (25.2) d'un segment (21) va/vont en s'élargissant de la face avant (24) du segment (21) vers sa face arrière (23).
  3. Dispositif selon la revendication 2, caractérisé en ce que la première face transversale (25.1) et/ou la seconde face transversale (25.2) va/vont en s'élargissant graduellement en formant une section de listeau (39).
  4. Dispositif selon la revendication 2, caractérisé en ce que la première face transversale (25.1) et/ou la seconde face transversale (25.2) va/vont en s'élargissant linéairement en formant une surface oblique (47).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'une des deux surfaces transversales (25.1, 25.2) d'un segment (21) reste la même de la face avant (24) du segment (21) à sa face arrière (23) tandis que l'autre face transversale (25.1, 25.2) va en s'élargissant.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que la première face transversale (25.1) et/ou la seconde face transversale (25.2) ainsi que l'élément de serrage correspondant présentent des surfaces de contact de forme complémentaire.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que la section transversale de l'élément de serrage est de forme symétrique.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que l'élément de serrage est constitué d'un anneau de serrage (41, 41.1, 41.2, 41.3, 41.4, 41.5, 41.6, 41.7).
  9. Dispositif selon la revendication 1, caractérisé en ce que la première face transversale (25.1) et la seconde face transversale (25.2) d'un segment (21) ont la même forme.
EP11003437.8A 2010-04-27 2011-04-27 Dispositif de broyage de matériaux de chargement Active EP2383037B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010006173U DE202010006173U1 (de) 2010-04-27 2010-04-27 Vorrichtung zum Zerkleinern von Aufgabegut

Publications (2)

Publication Number Publication Date
EP2383037A1 EP2383037A1 (fr) 2011-11-02
EP2383037B1 true EP2383037B1 (fr) 2019-06-05

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US (1) US9403168B2 (fr)
EP (1) EP2383037B1 (fr)
DE (1) DE202010006173U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107520006A (zh) * 2016-06-21 2017-12-29 上海弗鲁克科技发展有限公司 疫苗高效反应器及其定转子组件
CN109692746B (zh) * 2019-01-16 2020-09-01 中联重科股份有限公司 制砂机及其控制方法
CN113102038B (zh) * 2021-03-25 2022-07-12 江西诺泰生物科技有限公司 一种固体饮料生产用原材料研磨设备

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP2070596A1 (fr) * 2007-12-13 2009-06-17 Microtec GmbH Moulin à courant de Foucault

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US3059863A (en) * 1959-04-06 1962-10-23 Bolton John W & Sons Inc Segmental filling for refiner plugs
US3452939A (en) * 1967-03-03 1969-07-01 Bolton Emerson Rough cast segmental fillings for pulp refiners
USRE29053E (en) * 1972-05-09 1976-11-30 Mixer-refiner
US3873047A (en) * 1973-03-22 1975-03-25 Louis W Johnson Impact crusher
JPS5445572Y2 (fr) * 1976-11-17 1979-12-27
DE19723705C1 (de) * 1997-06-06 1999-01-28 Pallmann Kg Maschf Mühle zum schonenden Feinstvermahlen von Produkten unterschiedlicher Herkunft
DE10053946C2 (de) * 2000-09-29 2002-08-22 Noll Gmbh Ulf Vorrichtung zum Mischen, Mahlen, Trocknen und Coatieren von unterschiedlichsten Stoffen im Feinheitsbereich von 500 mum und darunter, insbersondere Prallmühle
DE20211899U1 (de) * 2002-08-01 2002-09-19 Cemag Anlagenbau Gmbh Wirbelstrommühle sowie Rotor und Mahlwerkzeug dafür
DE20216056U1 (de) 2002-10-18 2004-03-04 Pallmann Maschinenfabrik Gmbh & Co Kg Vorrichtung zum Zerkleinern von Aufgabegut
DE202004001620U1 (de) * 2004-02-04 2004-04-08 Voith Paper Patent Gmbh Mahlgarnituren für Papierfaserstoff
US7451944B2 (en) * 2006-06-23 2008-11-18 Hall David R Replaceable segmented wear liner
DE102007058127A1 (de) * 2007-11-30 2009-06-04 Pallmann Maschinenfabrik Gmbh & Co Kg Vorrichtung zum Auflösen des Verbundes von im Verbund vorliegendem Aufgabegut
DE102008049339B4 (de) * 2008-09-29 2020-07-16 Pallmann Maschinenfabrik Gmbh & Co. Kg Vorrichtung zum Bearbeiten von Aufgabegut

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2070596A1 (fr) * 2007-12-13 2009-06-17 Microtec GmbH Moulin à courant de Foucault

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US9403168B2 (en) 2016-08-02
DE202010006173U1 (de) 2011-10-17
EP2383037A1 (fr) 2011-11-02
US20110259986A1 (en) 2011-10-27

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