EP1579915B1 - Broyeur avec élément de broyage échangeable - Google Patents

Broyeur avec élément de broyage échangeable Download PDF

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Publication number
EP1579915B1
EP1579915B1 EP05005932A EP05005932A EP1579915B1 EP 1579915 B1 EP1579915 B1 EP 1579915B1 EP 05005932 A EP05005932 A EP 05005932A EP 05005932 A EP05005932 A EP 05005932A EP 1579915 B1 EP1579915 B1 EP 1579915B1
Authority
EP
European Patent Office
Prior art keywords
mill
rotor
beater
beater strips
strips
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.)
Not-in-force
Application number
EP05005932A
Other languages
German (de)
English (en)
Other versions
EP1579915A1 (fr
Inventor
Marcus Adam
Thomas Schaflitzl
Alexander Stegmann
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.)
Hosokawa Alpine AG
Original Assignee
Hosokawa Alpine AG
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 Hosokawa Alpine AG filed Critical Hosokawa Alpine AG
Priority to SI200531495T priority Critical patent/SI1579915T1/sl
Priority to PL05005932T priority patent/PL1579915T3/pl
Publication of EP1579915A1 publication Critical patent/EP1579915A1/fr
Application granted granted Critical
Publication of EP1579915B1 publication Critical patent/EP1579915B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C2013/145—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with fast rotating vanes generating vortexes effecting material on material impact

Definitions

  • the invention relates to a mill with several grinding stages for the treatment, in particular for crushing, drying, grinding drying, coating and deagglomerating / dispersing dry or moist material according to claim 1, with inlet and outlet devices for carrier gas and Good, consisting of a cylindrical or frustoconical, drivable rotor with several circular disks arranged one above the other and blowout strips distributed on the circumference, with a likewise cylindrical or frustoconical stator common to all grinding planes.
  • the invention particularly relates to a mill with easily exchangeable blow bars with a correspondingly designed mill housing.
  • each milling stage is formed by a plurality of grinding plates mounted on the circumference of a circular disk.
  • the grinding plates are fastened with screws.
  • the exchange of grinding plates is done by loosening the screw connections, usually 2 per grinding plate, with several grinding plates per disc and several discs per mill a very large amount of time. Also very expensive is the installation, since the refining plates not only fixed with the screws, but must also be aligned with distance to the stator.
  • a mill which identifies a disk-shaped, radial carriers for the grinding body equipped rotor.
  • the carriers are provided on their top and bottom with brackets or recesses that hold the grinding media against centrifugal force.
  • Rotatable clamping rings are mounted on the rotor between two adjacent radial supports around the rotor, locking the grinding media. In this mill, the screw connections were replaced.
  • this construction is very expensive to manufacture and the assembly is not much easier.
  • a mill in which the rotor is provided with circumferentially spaced, vertically oriented grooves of a prismatic guide.
  • the exchangeable grinding tools have in the foot area a shape adapted to the grooves for guiding formation and can thus on the rotor be attached.
  • the screw connections between the rotor and refining plates are dispensed with, but they are replaced by expensive to produce guides in prism and dovetail shape, which require a high manufacturing accuracy.
  • the DE 198 44 377 describes a grinding stage for a generic mill.
  • the edge of the centrifuge plate is provided with recesses with undercuts, and each of the refining plates has recesses which correspond to the recesses in the centrifuge plate such that the refining plates are suspended in the recesses in the centrifuge plate, so that their radial position during the rotation maintained the centrifugal forces occurring in the centrifuge bowl.
  • DE 296 06 424 relates to a mill with a stator in which a vertically standing rotary driven rotor is mounted, are attached to the grinding tools interchangeable.
  • the grinding tools are made of ceramic material and are positively secured in the rotor.
  • each grinding stage individual grinding tools are assigned.
  • the grinding tools are inserted one above the other in retaining slots on the rotor and are secured there by a stop surface against falling down. To change the grinding tools of a holding slot they must be pulled out of the holding slot one after the other, which is time-consuming and cumbersome and de facto prevents a simple automatic change.
  • the mills described in the prior art have all milling stages, each of which several grinding tools are assigned and are fixed there individually or together.
  • the grinding stages are limited by circular baffles, which are inserted between the grinding tools.
  • the replacement or assembly of the grinding tools is not possible with pressure shock-resistant design, without large doors, without dismantling the machine. A simple and fast automated exchange is de facto not possible.
  • the mill is provided above the rotor with at least one small opening. This serves to insert the grinding tools in the rotor or pull out.
  • the grinding tools are designed in the form of one-piece blow bars which cover several or all grinding stages of the mill, the blow bars having at one end a device by which they are picked up with a tool and fed into the machine and out.
  • blow bars in the rotor have the superposed circular discs evenly over the circumference arranged recesses with undercuts. Located under the lowest disc a disc that covers the recesses partially and prevents slipping of the blow bars.
  • the blow bars can be easily inserted from above through the opening in the housing in the rotor and require no further attachment.
  • the blow bars can be adapted by their easy replacement to the appropriate milling task.
  • the grinding gap between the grinding track on the stator and the blow bars can be easily changed in width and geometry by simply exchanging blow bars with others, with different depth and profile.
  • the grinding gap can thus be adapted to any task and to any product. Compliance with the accuracy of Mahlspaltweite is given.
  • the one-piece blow bars have two functions, a Mahlditerfunktion and a holding function.
  • the area of the blow bars with holding function is shaped so that the blow bars can be inserted into the recesses with undercut of the circular discs on the rotor from top to bottom.
  • the area with Mahlditerfunktion is radially aligned in the installed state, parallel to the rotor axis. This range can be made over the height of any profile and at any depth, so that by changing the blow bars the Mahlspaltweite and geometry are easily changed.
  • the blow bars can be designed so that they protrude into the gap between the circular disk and grinding track, cut off exactly with the circular disks or the circular disks protrude further into the grinding gap than the impact disks.
  • FIG. 1 illustrated variant of the mill 1 according to the invention consists of a rotor 2 which is enclosed by a stator 3 with grinding track.
  • the rotor 2 is driven by a drive unit, not shown.
  • the mill is charged in this embodiment from below with regrind and carrier air.
  • At the top of the housing is the outlet for product and carrier gas.
  • Also at the upper end of the housing is a closable opening 7 through which the blow bars 6 are pulled out of the mill 1 or used without having to disassemble the mill 1.
  • the rotor 2 consists of several superposed circular disks 4 in which the blow bars 6 are held.
  • FIG. 2 is the rotor 2, shown with the circular disks 4 arranged one above the other.
  • the circular discs 4 have recesses 8, here in the form of angled slots that receive the blow bars 6 by plugging in from above.
  • a holding plate is arranged below the lowermost disc, which prevents slippage of the blow bars 6.
  • the blow bars 6 according to FIG. 3 are designed as folded sheets.
  • the blow bars can be divided into two areas with different functions, the right side in FIG. 3 represents the area with grinder function and the left side the area with holding function.
  • the contour of the leg with holding function fits into the recesses 8 of the circular discs 4. If the rotor 2 is set in rotation, are the blow bars 6 on the radially outer side of the recess 8 and are held.
  • a recess 9 is provided in which a hook, which has been inserted through the opening 7 in the mill, engages to pull out or introduce the blow bars 6 from the machine.
  • the blow bars 6 may have different contours in MahlSchwitzr Colour. In FIG. 3 the straight edge of the blower is executed while the blow bars 6 in FIG. 1 and 2 are executed bulbous.
  • FIG. 4 a further embodiment of the blow bars 6 and the circular discs 4 for the mill 1 according to the invention is shown.
  • the circular discs 4 have slot-shaped recesses 8 on the edge, which extend rhombic, followed by a second diamond-shaped extension.
  • the associated beater bars 6 are rectangular and have holes in the intervals corresponding to the distances of the circular disks 4 on the rotor 2. In the holes screws or bolts 10 are used. If the blow bars 6 inserted from above into the rotor 2, the screws or bolts 10 are exactly in the recesses 8 of the circular discs 4 and hold the rackets 6 so in the rotor 2. When equipped with the blow bars 6 with screws 10, the depth with the beaters 6 rich in the grinding gap can be adjusted by means of screws 10.
  • the recesses in the circular disks may be designed as slots which are radially away from the edge or at an angle to the radial direction, in order then to have a distinction.
  • This undercut can be designed on one side or on both sides and be formed in any geometric shape, for. B. rectangular, circular or triangular.
  • the blow bars can have a wide variety of contours, for example straight, bulbous but also increase in width across the height of the racket or decrease. But there are also all combinations of these contours feasible and projections and recesses.
  • blow bars do not have to cover all Mahlebenen, it is possible by different long blow bars, for example. in the lower part of the mill, place the clubs closer than in the upper area.

Landscapes

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

Claims (8)

  1. Broyeur (1) à plusieurs étages pour mélanger, broyer, moudre, sécher, désagréger et enrober un produit sec ou humide, avec des dispositifs d'entrée et de sortie pour le gaz porteur et le produit, constitué d'un rotor motorisable (2) cylindrique ou tronconique, avec plusieurs disques circulaires superposés (4) et plusieurs batteurs (6) répartis sur le pourtour, et avec un stator (3) également cylindrique ou tronconique, commun à tous les étages de broyeur, caractérisé en ce que les batteurs monoblocs (6) s'étendent sur plusieurs étages de broyeur, de préférence sur tous les étages de broyeur, le carter de broyeur présente du côté frontal au moins une ouverture (7) pour équiper le rotor (2) des batteurs monoblocs (6) remplaçables, emboîtables, et les batteurs (6) présentent à l'une de leurs extrémités un dispositif (9) par lequel ils peuvent être pris en charge par un outil et rentrés dans/sortis de la machine.
  2. Broyeur (1) selon la revendication 1, caractérisé en ce que les batteurs (6) sont mis en forme sur la hauteur de telle sorte que, par leur côté tourné vers l'axe du rotor, ils sont maintenus par emboîtement, sans autres moyens de fixation, dans des évidements superposés (8) des disques circulaires (4).
  3. Broyeur (1) selon la revendication 1 ou 2, caractérisé en ce que les batteurs (6) sont configurés de telle sorte qu'ils présentent sur la hauteur une distance constante ou une distance variable par rapport au stator (3).
  4. Broyeur (1) selon l'une des revendications 1 à 3, caractérisé en ce que les batteurs (6) présentent sur la hauteur une ou plusieurs saillies et/ou renfoncements.
  5. Broyeur (1) selon l'une des revendications 1 à 4, caractérisé en ce que les batteurs (6) sont orientés radialement ou sous un angle par rapport à la radiale.
  6. Broyeur (1) selon l'une des revendications 1 à 5, caractérisé en ce que les batteurs (6) sont des tôles repliées.
  7. Broyeur (1) selon l'une des revendications 1 à 6, caractérisé en ce que les batteurs (6) présentent à hauteur des disques circulaires (4) des perçages avec des vis ou des boulons (10), et ceux-ci assurent le maintien des batteurs (6) dans les disques circulaires (4).
  8. Broyeur (1) selon la revendication 7, caractérisé en ce que la distance entre les batteurs (6) et le stator (3) peut être réglée par les vis ou boulons (10).
EP05005932A 2004-03-24 2005-03-18 Broyeur avec élément de broyage échangeable Not-in-force EP1579915B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200531495T SI1579915T1 (sl) 2004-03-24 2005-03-18 Mlin z zamenljivimi udarnimi letvami
PL05005932T PL1579915T3 (pl) 2004-03-24 2005-03-18 Młyn z wymiennymi listwami udarowymi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014258A DE102004014258C5 (de) 2004-03-24 2004-03-24 Mühle mit auswechselbaren Schlagleisten
DE102004014258 2004-03-24

Publications (2)

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

Family

ID=34854014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05005932A Not-in-force EP1579915B1 (fr) 2004-03-24 2005-03-18 Broyeur avec élément de broyage échangeable

Country Status (6)

Country Link
EP (1) EP1579915B1 (fr)
AT (1) ATE538869T1 (fr)
DE (1) DE102004014258C5 (fr)
ES (1) ES2378169T3 (fr)
PL (1) PL1579915T3 (fr)
SI (1) SI1579915T1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020714A1 (de) 2009-05-11 2010-11-18 Pallmann Maschinenfabrik Gmbh & Co Kg Vorrichtung zum Bearbeiten von Aufgabegut
DE102010009894A1 (de) 2010-03-02 2011-09-08 Rolf Schatz Rotor-Mahlwerkzeug für Rotorprallmühlen
DE102011089615A1 (de) * 2011-12-22 2013-06-27 Bhs-Sonthofen Gmbh Zerkleinerungsvorrichtung und Verwendung einer solchenZerkleinerungsvorrichtung
DE202016002207U1 (de) 2016-04-08 2016-05-02 Hosokawa Alpine Aktiengesellschaft Steckschläger für eine Mühle

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585943A (en) * 1943-03-01 1952-02-19 Harriet F Derrick Impact rotor for stone breakers
DE1296942B (de) * 1965-04-24 1969-06-04 Sistig Georg Schleuderprallmuehle mit mindestens zwei in einem Gehaeuse gleichsinnig umlaufenden Rotoren
DE2302466C2 (de) * 1973-01-19 1982-12-09 Thyssen Industrie Ag, 4300 Essen Vorrichtung zum Zerkleinern von Feststoffen
DE3334783A1 (de) * 1982-09-28 1984-03-29 Pallmann Maschinenfabrik GmbH & Co KG, 6660 Zweibrücken Halterung fuer nachstellbare schlagplatten an schlaegerrotoren von zerkleinerungsmaschinen
DE3543370A1 (de) * 1985-12-07 1987-06-11 Jackering Altenburger Masch Muehle mit mehreren mahlstufen
DE29606424U1 (de) * 1996-04-06 1997-07-31 Gebrüder Bauermeister & Co Verfahrenstechnik GmbH & Co, 22844 Norderstedt Mühle zum Mahlen von Nahrungsmitteln, Genußmitteln sowie für chemische, pharmazeutische und mineralische Stoffe
DE19700429A1 (de) * 1997-01-09 1998-07-23 Bayer Ag Mühle
DE19723705C1 (de) * 1997-06-06 1999-01-28 Pallmann Kg Maschf Mühle zum schonenden Feinstvermahlen von Produkten unterschiedlicher Herkunft
DE19844377A1 (de) * 1998-09-28 2000-03-30 Jackering Altenburger Masch Mahlstufe für eine Mühle
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
JP2002292295A (ja) * 2001-03-30 2002-10-08 Kawasaki Heavy Ind Ltd 衝撃式破砕機のロータ

Also Published As

Publication number Publication date
EP1579915A1 (fr) 2005-09-28
PL1579915T3 (pl) 2012-05-31
ES2378169T3 (es) 2012-04-09
DE102004014258B4 (de) 2008-04-10
ATE538869T1 (de) 2012-01-15
DE102004014258C5 (de) 2010-09-16
DE102004014258A1 (de) 2005-10-20
SI1579915T1 (sl) 2012-05-31

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