EP3383542B1 - Ensemble meule pour un broyeur à disques pour le broyage de matière à broyer - Google Patents

Ensemble meule pour un broyeur à disques pour le broyage de matière à broyer Download PDF

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Publication number
EP3383542B1
EP3383542B1 EP16798221.4A EP16798221A EP3383542B1 EP 3383542 B1 EP3383542 B1 EP 3383542B1 EP 16798221 A EP16798221 A EP 16798221A EP 3383542 B1 EP3383542 B1 EP 3383542B1
Authority
EP
European Patent Office
Prior art keywords
grinding
insert
grinding disc
millstone
ground
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
EP16798221.4A
Other languages
German (de)
English (en)
Other versions
EP3383542A1 (fr
Inventor
Wolfgang Mock
Thomas Mohr
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.)
Wolfgang Mock GmbH
Original Assignee
Wolfgang Mock 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 Wolfgang Mock GmbH filed Critical Wolfgang Mock GmbH
Priority to PL16798221T priority Critical patent/PL3383542T3/pl
Publication of EP3383542A1 publication Critical patent/EP3383542A1/fr
Application granted granted Critical
Publication of EP3383542B1 publication Critical patent/EP3383542B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • B02C7/13—Shape or construction of discs for grain mills

Definitions

  • the invention relates to a grinding stone arrangement for a disc grinder for the comminution of grist, in particular granular material in the food sector, consisting of a fixed, stator grinding disc and a driven, rotor grinding disc, which are arranged concentrically one above the other while maintaining a grinding gap, the stator grinding disc having a central opening for giving up the Has grist and the grinding disks consist of a natural or artificial stone material, according to claim 1.
  • Grinding stone arrangements for grain mills have been state of the art for many decades. Basically, such a grinding stone arrangement, which forms the actual grinder, consists of two ring-shaped grinding stones. A first millstone is usually designed to be stationary. A second grinding stone is connected to a drive and is able to execute a rotational movement. On the stationary grinding stone, also known as a stator grinding stone, there is an inlet opening or an inlet funnel for the ground material, e.g. grains.
  • the rotating grinding stone is usually located on a rotor hub which is located on a shaft driven by an electric motor.
  • a millstone assembly according to the preamble of claim 1 is in US Pat U.S. 3,926,380 A disclosed.
  • a grinding stone made of natural and artificial stone material is previously known, at least one of the grinding surfaces having a recess protruding radially from a central opening.
  • this recess has wedge contours with an inclined bottom surface that rises only in the direction of rotation and two at least approximately axially aligned boundary surfaces, with a planar hub area extending in the direction of rotation from the edge of the recess to the next edge of the recess.
  • a grinding disc which preferably revolves in a horizontal plane and can be driven about a vertical axis, to which cutting bodies are attached.
  • the cutting bodies protrude from the top of the grinding disc.
  • at least one radially extending, stationary cutting bar is arranged, which has edge recesses corresponding to the contour of the cutting bodies in the direction of rotation, through which the cutting bodies move when the grinding disk is rotated.
  • the cutting bodies are mounted on cutting body holders that can be inserted in receptacles.
  • the processing body for comminuting a feed material comprises a cast metal body as a cast metal body and at least one insert body which is embedded in the cast carrier matrix and increases the wear resistance of a functional or wear surface of the processing body.
  • the at least one insert body is a pressed or sintered body of a mixture of metal powder and hard material or a die-cast body which comprises a hard material in a die-cast matrix made of die-cast metal.
  • the grinding tool for comminuting granular material from the food sector according to EP 1 818 099 A1 is based on an internal grinding body in the form of a grinding cone, the grinding cone being surrounded by a fixed grinding ring, forming a grinding gap.
  • the grinding cone is located rotatably in a bearing via a coaxial, at least cylindrical in the bearing area Drive shaft indirectly connected to the drive.
  • the drive shaft and the grinding cone are formed in one piece.
  • the grinding stone arrangement consists of a fixed stator grinding disk and a driven rotor grinding disk.
  • stator grinding disk and rotor grinding disk are arranged concentrically one above the other while maintaining a grinding gap, which is optionally adjustable.
  • the stator grinding disk has a central or central opening for feeding in the grist.
  • the grinding discs are made of a natural or artificial stone material.
  • the stator grinding disk has a first insert, connected to the grinding disk and directed both towards the center of the opening and towards the grinding gap, in the area surrounding the opening for feeding the material to be ground.
  • the rotor grinding disk has a second insert connected to it in a rotationally fixed manner, which in longitudinal section has the shape of a cone or a Has truncated cone, wherein the cone or truncated cone tip protrudes into the opening for the grinding stock feed.
  • the first and the second insert have a structure on their surfaces directed towards the grinding gap and / or towards the opening.
  • the material of the inserts is also chosen differently from the material of the grinding disks.
  • the inserts are preferably made of a ceramic material, metal or plastic of greater hardness.
  • the aforementioned structuring is designed as a toothing and has a large number of cutting or impact edges.
  • the toothing of the insert of the rotor grinding disk is preferably designed to run in an arc shape radially to the center outwards.
  • the toothing of the insert of the stator grinding disk is designed both in the direction of the axis of rotation of the rotor grinding disk and in the direction of the grinding gap.
  • a conical annular gap for the grinding stock feed is provided in the area of the opening for feeding in the grist.
  • the curved toothing can have at least one point of discontinuity per curved groove or have a spiral course.
  • the grinding disk inserts are flush with the surface of the respective grinding disk in the area of the grinding gap, which is essentially usually horizontal.
  • the pre-comminuted ground material is therefore introduced into the remaining grinding gap between the stator and rotor grinding disks for fine grinding.
  • the grinding disk inserts By means of the grinding disk inserts, a pre-grinding of the ground material is possible, its fine grinding via the grinding gap between the remaining unused sections of the stator and rotor grinding disk is realized.
  • FIG. 4 shows the basic design of a grinding stone arrangement for a disc grinder, comprising a stator grinding disk 10 and a rotor grinding disk 20.
  • the rotor grinding disk 20 is non-rotatably connected to a drive device (not shown).
  • the millstone arrangement according to the schematic diagram according to Fig. 4 also has a central opening 3 for feeding the grist, not shown.
  • stator grinding disk 10 has a first insert 1 which is connected to the grinding disk and directed both towards the center of the opening 3 and towards the grinding gap 4.
  • the rotor grinding disk 20 has a second insert 2 which is connected to it in a rotationally fixed manner and has the shape of a cone or a truncated cone in longitudinal section.
  • the cone or truncated cone tip 5 extends into the opening 3 for the grinding stock feed.
  • both the first insert 1 and the second insert 2 have a structuring, for example designed as a toothing, on their surface facing the grinding gap and / or the opening.
  • the material of the stator grinding disk 10 and the rotor grinding disk 20 is natural or artificial stone.
  • the material of the inserts 1; 2 is preferably ceramic, metal or a plastic of greater hardness.
  • the toothing of the insert 2 of the rotor grinding disk 20 runs, as in FIG Fig. 2 seen, arcuate radially outward from the center of the insert.
  • the recognizable grooves of the toothing take up the grinding stock, which is moved outward by the rotational movement of the rotor in conjunction with the centrifugal forces that occur and passes into the remaining grinding gap between the stator grinding disk 10 and rotor grinding disk 20 for fine grinding.
  • a conical annular gap 6 can be formed for the ground material.

Landscapes

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

Claims (7)

  1. Ensemble formant meule pour un broyeur à disques destiné à broyer des matériaux, en particulier des matériaux granulaires dans le secteur alimentaire, constitué d'un disque de broyage à stator fixe (10) et d'un disque de broyage à rotor entraîné (20), qui sont disposés concentriquement l'un au-dessus de l'autre tout en conservant un intervalle de broyage (4),
    dans lequel le disque de broyage à stator (10) présente une ouverture centrale (3) pour l'alimentation du matériau à broyer, et les disques de broyage (10 ; 20) sont constitués d'un matériau en pierre naturelle ou artificielle,
    le disque de broyage à rotor (20) comprend en outre un deuxième insert (2) qui est relié à celui-ci solidairement en rotation et qui a en coupe longitudinale la forme d'un cône ou d'un tronc de cône, la pointe (5) du cône ou du tronc de cône faisant saillie dans l'ouverture (3) pour l'alimentation du matériau à broyer, et le deuxième insert (2) présentant une structuration sur sa surface dirigée vers l'intervalle de broyage (4) et/ou vers l'ouverture (3),
    caractérisé en ce que
    dans la zone qui entoure l'ouverture (3) pour l'alimentation du matériau à broyer, le disque de broyage à stator (10) comprend un premier insert (1) pourvu d'une structuration, relié au disque de broyage (10) et dirigé vers le centre de l'ouverture (3) et également vers l'intervalle de broyage (4),
    la structuration est réalisée sous forme de denture s'étendant radialement et axialement, c'est-à-dire réalisée aussi bien en direction de l'axe de rotation du disque de broyage à rotor (20) qu'en direction de l'intervalle de broyage (4), et le matériau des inserts (1 ; 2) est choisi différemment du matériau des disques de broyage (10 ; 20).
  2. Ensemble formant meule selon la revendication 1,
    caractérisé en ce que
    les inserts (1 ; 2) sont constitués en céramique ou en métal.
  3. Ensemble formant meule selon l'une des revendications précédentes,
    caractérisé en ce que
    la denture comporte une multitude d'arêtes de coupe ou d'impact.
  4. Ensemble formant meule selon la revendication 3,
    caractérisé en ce que
    la denture de l'insert (2) du disque de broyage à rotor (20) est conçue de manière à s'étendre en forme d'arc radialement du centre vers l'extérieur.
  5. Ensemble formant meule selon l'une des revendications précédentes,
    caractérisé en ce que
    un intervalle annulaire conique (6) pour le matériau à broyer est formé entre l'insert (1) du disque de broyage à stator (10) et l'insert (2) du disque de broyage à rotor (20) dans la zone de l'ouverture (3) pour l'alimentation du matériau à broyer.
  6. Ensemble formant meule selon la revendication 4,
    caractérisé en ce que
    la denture s'étendant en forme d'arc présente au moins une discontinuité pour chaque rainure arquée.
  7. Ensemble formant meule selon l'une des revendications précédentes,
    caractérisé en ce que
    les inserts de disque de broyage (1 ; 2) se terminent en affleurement avec la surface du disque de broyage respectif (10 ; 20) dans la zone de l'intervalle de broyage (4).
EP16798221.4A 2015-12-03 2016-11-21 Ensemble meule pour un broyeur à disques pour le broyage de matière à broyer Active EP3383542B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16798221T PL3383542T3 (pl) 2015-12-03 2016-11-21 Układ kamienia młyńskiego do młynka tarczowego do rozdrabniania mlewa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015015622 2015-12-03
PCT/EP2016/078319 WO2017093062A1 (fr) 2015-12-03 2016-11-21 Ensemble meule pour un broyeur à disques pour le broyage de matière à broyer

Publications (2)

Publication Number Publication Date
EP3383542A1 EP3383542A1 (fr) 2018-10-10
EP3383542B1 true EP3383542B1 (fr) 2021-01-06

Family

ID=57348701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16798221.4A Active EP3383542B1 (fr) 2015-12-03 2016-11-21 Ensemble meule pour un broyeur à disques pour le broyage de matière à broyer

Country Status (4)

Country Link
EP (1) EP3383542B1 (fr)
DE (1) DE102016122337A1 (fr)
PL (1) PL3383542T3 (fr)
WO (1) WO2017093062A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107899666A (zh) * 2017-11-25 2018-04-13 防城港市润禾农林科技有限公司 一种用于天然香料的粉碾装置
CN109277137B (zh) * 2018-10-10 2023-12-08 湖州职业技术学院 一种调隙机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR317706A (fr) * 1902-01-11 1902-09-23 Witham Des perfectionnements aux appareils pour broyer, moudre ou réduire la chaux, les cendres, le grès, la pierre calcaire, l'argile réfractaire, le quartz et autres minerais et matériaux
US3926380A (en) * 1974-05-24 1975-12-16 Emcee Corp Grain milling device
AT384751B (de) 1983-12-29 1988-01-11 Osttiroler Getreidemuehlenbau Mahlstein
DE19530428C1 (de) 1995-08-18 1996-12-19 Albrecht Fritzsche Granulatmühle
EP1818099A1 (fr) 2006-02-13 2007-08-15 Eldom Rothrist AG Appareil pour moudre des matériaux granuleux, en particulier dans la domaine alimentaire
DE102010043353A1 (de) 2010-11-03 2012-05-03 Shw Casting Technologies Gmbh Bearbeitungskörper zum Zerkleinern eines Aufgabeguts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2017093062A1 (fr) 2017-06-08
EP3383542A1 (fr) 2018-10-10
PL3383542T3 (pl) 2021-10-18
DE102016122337A1 (de) 2017-06-08

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