WO2008090016A1 - Broyeur à cylindres - Google Patents

Broyeur à cylindres Download PDF

Info

Publication number
WO2008090016A1
WO2008090016A1 PCT/EP2008/050145 EP2008050145W WO2008090016A1 WO 2008090016 A1 WO2008090016 A1 WO 2008090016A1 EP 2008050145 W EP2008050145 W EP 2008050145W WO 2008090016 A1 WO2008090016 A1 WO 2008090016A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
profile body
roller
profile
grinding roller
Prior art date
Application number
PCT/EP2008/050145
Other languages
German (de)
English (en)
Inventor
Dirk Dilly
Markus Berger
Ludwig KÖNNING
Ernst Hoppe
Rüdiger OSTKAMP
Herbert Pingel
Original Assignee
Polysius 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 Polysius Ag filed Critical Polysius Ag
Publication of WO2008090016A1 publication Critical patent/WO2008090016A1/fr

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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers

Definitions

  • the invention relates to a roller mill with two counter-rotating grinding rollers and a method for checking the roller mill.
  • Milling rollers often consist of a roller body and a wear protection layer attached thereto. In order to be able to recognize maintenance intervals in good time, regular visual checks are therefore carried out.
  • EP-A2-0 509 809 is a method for monitoring the wear of
  • Crushing or grinding rolls known, wherein the peripheral surface of the roller is scanned with a laser beam to determine an increase in the distance to a reference point and derive therefrom a measure of the wear of the wear protection layer.
  • an optical monitoring system such as a laser system, is used to monitor the surface of crusher rolls.
  • roll mills in particular roller presses
  • profile bodies For this purpose, in practice very often cylindrical hard metal pins are used, which are introduced into a soft matrix. The distance between the profile body is dimensioned so that regrind attaches between the profile bodies and thereby an autogenous wear protection layer is formed.
  • Such roll mills are used, in particular, for the grinding of brittle minerals, such as in the treatment of copper or gold ore.
  • Cemented carbide sticks can lead to increased leaching at these points come that cause the base material of the roller body is irreparably damaged and the entire roller must be prepared or even replaced. It is therefore important that the loss of individual carbide pins is detected early. In practice, therefore, regular visual checks are carried out.
  • the invention is based on the object to improve the roll mill to the effect that the downtime is reduced even further.
  • each grinding roller provides a roller body, which is equipped with a plurality of profile bodies, uses at least one sensor to check the presence or absence of the profile body.
  • the roller mill according to the invention has two counter-rotating grinding rollers, wherein each grinding roller provides a roller body, which is equipped with a plurality of profile bodies. Furthermore, a monitoring device is provided, which is designed such that it detects the presence or absence of profile bodies.
  • the presence or absence of the profile body during the grinding operation of the roll mill is checked.
  • the profile body detected by the sensor during one revolution of the grinding roller can be counted.
  • the at least one sensor expediently detects, during one revolution of the grinding roller, the number of profile bodies which are arranged on at least one radial cutting plane (ie a cutting plane perpendicular to the axis of rotation of the grinding roller) on the grinding roller.
  • the at least one sensor is moved parallel to the grinding roller in order subsequently to count the number of profile bodies that are in the at least one new radial cutting plane are arranged on the grinding roller. The at least one sensor is then moved so often parallel to the grinding roller until all profile body are detected.
  • the detected by the sensor number of profile body is then compared with the target number of profile body. If a deviation is detected, suitable measures can be taken.
  • the profile bodies are preferably designed and arranged such that they favor the structure of an autogenous wear contactor layer.
  • This autogenous wear protection layer is formed by the shape, the distance and the height of the profile body is selected so that the material to be ground between the
  • the roll mill has a
  • Monitoring device with at least one sensor and a counter, wherein the counter counts the profile body detected by the at least one sensor.
  • a further existing evaluation device compares the number of profile body actually detected with a predetermined target number and optionally generates an output signal when repair or maintenance is required.
  • the monitoring device is provided with at least one sensor which supplies a measurement signal characterizing the wear state of a profile body.
  • This measurement signal characterizes, for example, the worn or remaining length of the profile body.
  • the monitoring preferably takes place during operation, wherein expediently most or all profile bodies are checked.
  • This can be achieved, for example, in that the at least one sensor is movably arranged relative to the grinding roller and in this way all profile bodies can be approached. Since the profile bodies are usually arranged in rows parallel to the axis of the grinding roller, it would be sufficient, however, if the sensor is arranged, for example, in the region of the grinding roller opposite the nip and can be moved there in the axial direction. But it is also conceivable that the sensor, for example, at the 1- or 2-clock position (nip on the
  • each sensor is movable in the radial direction with respect to the grinding roller.
  • Non-contact measuring sensors such as, for example, an inductive sensor, in particular an inductive displacement sensor, come into consideration as sensors.
  • the sensor can in particular the presence or Determine the absence of profile bodies and, where appropriate, the worn or remaining length of the profile body by means of comparative displacement measurement.
  • the evaluation device can also determine a wear prognosis, which indicates when the next repair is to be expected.
  • a wear prognosis which indicates when the next repair is to be expected.
  • graphical evaluations of wear are also conceivable.
  • 1 is a plan view of the roll mill with monitoring s device
  • Fig. 2 is a sectional view of the roll mill of FIG. 1 along the line
  • Fig. 3 is a sectional detail view of the roll mill in the field of
  • the roll mill shown in the drawing is preferably as
  • the grinding roller consists of a roller body 10, which is equipped with a plurality of profile bodies 11.
  • the profiled bodies 11 are, for example, in the form of a pin and fastened in corresponding bores 12.
  • the surface of the roller base body 10 is also provided with a wear protection layer 13.
  • the profile body 11 are arranged so that they protrude beyond the wear protection layer 13.
  • the distance between the profile bodies and their height over the wear protection layer 13 is dimensioned such that comminuted material to be comminuted 4 between the profile bodies 11 and thereby an autogenous
  • Profile body are provided in particular in the edge regions of the grinding rollers.
  • edge or corner elements 14 are provided which completely or partially cover the edge region of the grinding rolls and, moreover, can also extend into the end faces of the rolls.
  • a monitoring device 3 which checks the presence or absence of the profile body and possibly the state of wear of the plurality of profile body 11 and / or the edge or corner elements 14. It is arranged on the grinding gap 5 opposite side of the grinding roller 1 and is equipped with at least one sensor 30 which detects the presence or absence of the profile body and, if necessary, provides a measuring signal 31 characterizing the wear state of a profile body.
  • an evaluation device 32 which supplies an evaluation signal 33.
  • the sensor 30 on a rail 34 in the axial direction (double arrow 35) movable.
  • the sensor 30 is further designed such that it can detect a profile body in a specific position.
  • a plurality of profile body and possibly additionally the autogenous wear protection layer is detected at the same time.
  • the sensor 30 is expediently designed as a non-contact sensor, in particular as an inductive displacement sensor. It may be necessary that the sensor in addition to the axial adjustability in addition in the radial direction (double arrow 36) is movable. The radial displacement required to obtain a sensor signal of predetermined magnitude would then be proportional to the worn length of the tested profile body.
  • the monitoring device 3 is equipped with a counter 37 which counts the profile body 11, 14 detected by the at least one sensor 30.
  • the state of wear can also be checked. In the absence of a profile body or falling below a predetermined state of wear of the profile body, in particular a control signal for
  • Stopping the roller mill or a corresponding alarm signal are generated. Furthermore, a forecast for the remaining operating time until the next maintenance or repair can be transmitted via the ongoing measurements. Due to the measurement signals, it is also possible to determine a profile of the roll surface in an axial sectional plane. In this case, for example, excessive wear in the middle region of the rolls relative to the edge regions can be ascertained.
  • the forming autogenous wear contactor can sometimes also cause individual profile body are covered by the baked regrind. Even with a purely inductively operating sensor even a meaningful signal is conceivable, so that an inductive sensor has a clear advantage over purely visually operating sensors. However, it may be necessary to protect the sensors
  • Means 6, such as brushes, scratches, scrapers or a protective hood, provide so that the building up autogenous wear protective layer no
  • the monitoring device 3 has only been explained in more detail in the area of the grinding roller 1, naturally correspondingly formed sensors are also provided in the region of the other grinding roller 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

L'invention concerne un broyeur à cylindres comprenant deux cylindres de broyage (1 ; 2) entraînés en sens contraire, chaque cylindre de broyage (1 ; 2) présentant un corps de base de cylindre (10) équipé d'une pluralité de corps profilés (11). Un dispositif de surveillance (3) est en outre prévu, qui est réalisé de sorte qu'il détermine la présence ou l'absence de corps profilés (11). L'invention concerne en outre un procédé pour la vérification du broyeur à cylindres.
PCT/EP2008/050145 2007-01-26 2008-01-08 Broyeur à cylindres WO2008090016A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007004004.2 2007-01-26
DE102007004004.2A DE102007004004B4 (de) 2007-01-26 2007-01-26 Walzenmühle

Publications (1)

Publication Number Publication Date
WO2008090016A1 true WO2008090016A1 (fr) 2008-07-31

Family

ID=39231042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/050145 WO2008090016A1 (fr) 2007-01-26 2008-01-08 Broyeur à cylindres

Country Status (4)

Country Link
CL (1) CL2008000146A1 (fr)
DE (1) DE102007004004B4 (fr)
PE (1) PE20081763A1 (fr)
WO (1) WO2008090016A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022023869A1 (fr) 2020-07-30 2022-02-03 Weir Minerals Netherlands B.V. Appareil de détection d'usure

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008009835B4 (de) 2008-02-18 2011-07-28 Phoenix Contact GmbH & Co. KG, 32825 Sendeverfahren und Empfangsverfahren
EP2653225A1 (fr) * 2012-04-20 2013-10-23 Metso Brasil Industria e Comercio Ltda Dispositif et procédé de test pour broyeur à rouleaux ou broyeur
DE102013110981A1 (de) * 2013-10-02 2015-04-02 Thyssenkrupp Industrial Solutions Ag Verfahren zum Betreiben einer Anlage mit wenigstens einem Aggregat, das eine rotierende Oberfläche aufweist
DE102020114835B4 (de) 2020-06-04 2024-02-15 Maschinenfabrik Köppern Gmbh & Co. Kg Verfahren zur Überwachung einer Hochdruck-Walzenpresse
DE102020114815A1 (de) 2020-06-04 2021-12-09 Maschinenfabrik Köppern GmbH & Co KG Verfahren zur Überwachung einer Hochdruck-Walzenpresse
DE102020129795A1 (de) 2020-08-25 2022-03-03 Deere & Company Feldhäcksler mit Konditionierwalzen und Verschleißsensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578152A1 (fr) * 1992-07-04 1994-01-12 Klöckner-Humboldt-Deutz Aktiengesellschaft Procédé indication d'usure pour les cylindres broyeurs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858983A (en) * 1973-11-13 1975-01-07 Autech Corp Shaped product measurement
EP0509809A3 (en) * 1991-04-17 1993-06-09 De Beers Industrial Diamond Division (Proprietary) Limited Crusher roll wear monitoring apparatus and method
DE10105150C2 (de) * 2001-01-30 2003-10-02 Hurnaus Stahl Und Maschb Gmbh Zerkleinerer
AU2003903620A0 (en) * 2003-07-11 2003-07-31 Technological Resources Pty Ltd Repairing crusher rolls
DE10335115A1 (de) * 2003-07-31 2005-02-24 Polysius Ag Mahlwalze

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578152A1 (fr) * 1992-07-04 1994-01-12 Klöckner-Humboldt-Deutz Aktiengesellschaft Procédé indication d'usure pour les cylindres broyeurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022023869A1 (fr) 2020-07-30 2022-02-03 Weir Minerals Netherlands B.V. Appareil de détection d'usure

Also Published As

Publication number Publication date
CL2008000146A1 (es) 2008-08-01
DE102007004004B4 (de) 2016-09-01
PE20081763A1 (es) 2009-01-29
DE102007004004A1 (de) 2008-07-31

Similar Documents

Publication Publication Date Title
WO2008090016A1 (fr) Broyeur à cylindres
EP3009206B1 (fr) Rouleau de mesure de la planéité et barre porte-lame de mesure dans le sens de la bande
DE102013006821B4 (de) Gurtabstreifer mit Winkelhöhenverstellung
DE102015014573B4 (de) Selbstfahrende Bodenfräsmaschine und Verfahren zum Bearbeiten einer Verkehrsfläche
EP3052239B1 (fr) Methode pour opérer un systeme comportant au moins un dispositif comprenant une surface rotative
EP3864401B1 (fr) Dispositif et procédé de mesure d'un état d'usure d'éléments de roulement ou de guidage
EP3609651A1 (fr) Dispositif de meulage
EP2786651B1 (fr) Hache-paille
EP3389890B1 (fr) Procédé et dispositif de séparation d'une pièce
EP2581313A1 (fr) Dispositif de contrôle de tablettes mobiles
EP3630382B1 (fr) Dispositif de guidage de bandes métalliques à l'aide de corps d'usure dans une ligne de fabrication
DE19753563B4 (de) Schneidvorrichtung für Flachmaterialbahnen
DE102020117972A1 (de) Überwachungsvorrichtung und Verfahren zur Überwachung des Zustands eines Förderbands einer Förderbandanlage
EP0578152A1 (fr) Procédé indication d'usure pour les cylindres broyeurs
EP2075072A1 (fr) Dispositif et procédé destinés à la surveillance du mouvement d'une balle de broyage dans un broyeur à bague de roulement à billes
WO2018095470A1 (fr) Outil d'usinage pour machine d'usinage
EP3429946B1 (fr) Installation de traitement de récipients
AT513497B1 (de) Sensor für Verschleiß an einer Arbeitsfläche
DE102017105009B3 (de) Verfahren zum Betrieb einer Rollenpresse
EP2699365A1 (fr) Procédé de laminage de plaques, programme informatique, support de données et dispositif de commande
DE10341249B4 (de) Seitenplatte zum Abdichten eines zwischen den Gießwalzen einer Zweiwalzengießvorrichtung gebildeten Gießspalts, Zweiwalzengießvorrichtung und Verfahren zu ihrem Betrieb
EP3489647B1 (fr) Capteur de force
DE3520929C1 (de) Walze
EP3536834A1 (fr) Ouvreuse de balles
DE10058082C2 (de) Verfahren zur Wiederherrichtung eines Scheibensatzes einer Zerkleinerungseinrichtung und Scheibensaz hierfür

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08701312

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 08701312

Country of ref document: EP

Kind code of ref document: A1