EP1077087B1 - Rouleau broyeur et procédé de fabrication correspondente - Google Patents

Rouleau broyeur et procédé de fabrication correspondente Download PDF

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Publication number
EP1077087B1
EP1077087B1 EP00115889A EP00115889A EP1077087B1 EP 1077087 B1 EP1077087 B1 EP 1077087B1 EP 00115889 A EP00115889 A EP 00115889A EP 00115889 A EP00115889 A EP 00115889A EP 1077087 B1 EP1077087 B1 EP 1077087B1
Authority
EP
European Patent Office
Prior art keywords
recesses
hard bodies
roller
hard
bodies
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.)
Expired - Lifetime
Application number
EP00115889A
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German (de)
English (en)
Other versions
EP1077087A1 (fr
Inventor
Hubert Ramesohl
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.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag 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
Priority claimed from DE10014836A external-priority patent/DE10014836A1/de
Application filed by KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP1077087A1 publication Critical patent/EP1077087A1/fr
Application granted granted Critical
Publication of EP1077087B1 publication Critical patent/EP1077087B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 grinding roller for the crushing granular Good, especially for roller presses for comminution, with a Roll shell with wear-resistant surface armor, alternating Zones of highly wear-resistant material and clearance zones having other wear resistance. Moreover, the invention relates to a Process for the preparation of the grinding roller.
  • Such roll surfaces will have at least the following requirements put: they should have a high wear resistance, can be produced inexpensively by the operator or Customers can be repaired, and also a good collection behavior for own the product to be shredded.
  • the invention is based on the object, in particular for the grinding rollers of high-pressure roller mills or roller presses for pressure reduction granular good one for autogenous wear protection with application the grid armor technique suitable surface armor to create a high through high wear and compression strength Lifetime has and yet relatively simple and overall is inexpensive to manufacture and also to repair.
  • the inventive surface armor of grinding rolls or Press rolls are in the outer surface of the roll shell from each other formed spaced wells, which is especially easy to accomplish if the roll shell of a metal casting so that any machining operations such as attaching Of grooves, holes etc. can be omitted.
  • Seen in plan view the depressions of the roll shell can be circular, oblong, polygonal, rectangular, square or even rombenförmig with peaks in the roll circumferential direction or with peaks in the axial direction.
  • these depressions are corresponding prefabricated highly wear-resistant hard body in particular made of sintered metal. The reason of the depressions and the underside of the hard body are z. B.
  • the tool for performing the Klebetikvorganges can be a hydraulic or mechanical press.
  • the tool a more hot around the fitted hard body Shrink ring, which is at a temperature of z. B. 200 ° C has been heated is and after its cooling, d. H. after his shrinking from the Pressed hard bodies is removed again, including the tool serving shrink ring of at least two parts z. B. two ring halves is composed.
  • This serves as a tool shrink ring its function of pressing the hard body in the wells of the rolling mantle meet well can and the shrink ring on the tops of the pressed hard body fits snugly, it may be advantageous that the shrink ring on his Inside in the zones facing the hard bodies to be pressed, corresponding radially inwardly directed elevations in the same shape as the cemented carbide body to be pressed.
  • B. carbide carbide splinters be provided, whereby the strength of the adhesive bond is still increased.
  • the surface armor according to the invention is highly wear-resistant and but comparatively easy to produce. Should be in operation of the roller press or good-bed roller mill an adhesive bond of a hard body solve in such a case of damage, the roll surface be repaired by the operator himself.
  • the gap zones of the roll mantle between the fitted in the roll shell wells Hard bodies can during operation of the roller machine by the above described autogenous wear protection against wear become.
  • Figure 1 are in the outer surface of a roll shell 10 from each other spaced recesses 11, 12 formed.
  • the hard bodies may in particular consist of sintered metal and they can according to plan view of Figure 2 z. B. a cylindrical Have shape.
  • the diameter of the hard body 13, 14 may, for. B. 70 mm be, and the smallest distance between adjacent hard bodies from each other can at the joints 20 z. B. 20 mm.
  • the reason 15 of the wells 11, 12 and the bottom 16 of the hard body 13, 14 are with a certain surface roughness has been produced so that the two surfaces not tired of each other, but small between the two surfaces Cavities have been formed.
  • the hard metal platelets 13, 14, which according to the plan view of Figure 2 is a cylindrical Can have shape, but also rectangular, according to Figure 3, polygonal, square or figure 4 rombenförmig with tips in Circumferential direction and according to Figure 5 also rombenförmig with tips in Axial direction, etc.
  • the shrinking ring serving as a tool 18 on its inside in the zones containing the hard bodies to be pressed 13, 14 are opposite, corresponding radially inwardly directed Surveys 21 may have, fed to the tops of the hard body 13, 14 abut, thereby ensuring safe transmission of forces during the shrinkage of the deferred shrink ring 18 on the fitted Hard body 13, 14 is guaranteed.
  • the roll shell 10 of the grinding roller is a metal casting, so he can also from at least two different liquid casting masses produced in a single casting process.
  • the at least two casting compounds are distributed in such a way that outside the roll mantle a harder metal casting compound and in the radial inner region the roll mantle a softer metal casting compound concentrated become.
  • the metal casting compounds can thus be coordinated with one another, that in the mixing zone area good material compatibility and no Tensions occur.
  • the entire roll shell 10 can by centrifugal casting be prepared, in which in an appropriate form first the harder metal casting compound and then the softer and tougher Cast metal mass are thrown.
  • the located in the outer region of the roll shell 10 Cast material can advantageously have a hardness of more than 55 HRC (Rockwell C hardness test).
  • the casting material can Chromium alloyed and also special carbides and other hard alloy components contain.
  • the highly wear-resistant hard bodies 13, 14 from the roll surface arranged projecting can according to another feature the invention in the spaces between the adjacent prefabricated Hard bodies 13, 14 prefabricated on the roll shell surface highly wear-resistant, in particular powder-metallurgical or powder-ceramic produced platelets attached to the inserted Hard bodies 13, 14 can support against lateral displacement.
  • This highly wear-resistant platelets which are the surface of the roll mantle 10 between the hard bodies 13, 14 protect against premature washing and the life of the hard body 13, 14 can extend by gluing, soldering, hot isostatic pressing or by a positive connection with the roll shell 10th be connected.
  • This additional wear protection measure is also for Such roll shells applicable, which are not made of cast metal, but otherwise z. B. made of rolled material.

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

Claims (6)

  1. Cylindre de broyage pour le fractionnement sous compression de matière en grains, en particulier pour le pressage par cylindres en vue du fractionnement de la matière en un tapis, comportant une enveloppe (10) de cylindre dotée d'un blindage de surface résistant à l'usure qui présente en alternance des zones en matériau à haute résistance à l'usure et des zones intermédiaires qui présentent une autre résistance à l'usure, dans lequel:
    des creux (11, 12) polygonaux ou circulaires, séparés les uns des autres, sont formés dans la surface extérieure de l'enveloppe (10) du cylindre constituée d'un corps en métal coulé, et
    des corps durs préfabriqués à haute résistance à l'usure (13, 14), polygonaux ou circulaires, sont insérés dans les creux,
       caractérisé en ce que les creux (11, 12) sont formés sans travail par enlèvement de matière,
       en ce que des espaces vides qui sont remplis d'une pâte adhésive (17) sont formés entre le fond (15) des creux (11, 12) et le côté inférieur (16) des corps durs (13, 14) par martelage entraínant une rugosité, et
       en ce que la pâte adhésive (17) est dotée d'éclats de métal dur pour réaliser la liaison collée.
  2. Cylindre de broyage selon la revendication 1, caractérisé en ce que l'enveloppe (10) du cylindre à corps en métal coulé est constituée d'au moins deux masses de coulée différentes de manière à concentrer une masse de coulée plus dure dans la zone extérieure de l'enveloppe du cylindre et une masse de coulée plus malléable dans la zone de l'enveloppe du cylindre située radialement à l'intérieur.
  3. Cylindre de broyage selon la revendication 2, caractérisé en ce que le matériau de coulée situé dans la zone extérieure de l'enveloppe (10) du cylindre est constitué d'une fonte dure coulée en coquille et alliée au chrome.
  4. Procédé pour la fabrication d'un cylindre de broyage pour le fractionnement sous compression de matière en grains, en particulier pour le pressage par cylindres en vue d'un fractionnement de la matière en un tapis, doté de creux (11, 12) disposés dans la surface du cylindre et dans lesquels sont insérés des corps durs préfabriqués (13, 14) à haute résistance à l'usure, caractérisé par les caractéristiques suivantes:
    l'enveloppe (10) du cylindre est constituée d'un corps en métal coulé et les creux (11, 12) polygonaux ou circulaires, séparés les uns des autres, sont formés sans travail par enlèvement de matière,
    le fond (15) des creux (11, 12) et le côté inférieur (16) des corps durs (13, 14) reçoivent par martelage une rugosité d'une profondeur définie,
    avant l'introduction des corps durs (13, 14) dans les creux (12, 13) de la surface du cylindre, une pâte adhésive (17) est appliquée sur le fond (15) des creux et/ou sur le côté inférieur (16) des corps durs,
    après que les corps durs (13, 14) ont été insérés dans leurs creux (11, 12), un anneau à retrait (18) qui sert d'outil, chauffé et au moins en deux parties, est passé autour des corps durs et, lors de son refroidissement, enfonce les corps durs radialement vers l'intérieur contre la pâte adhésive (17),
    après refroidissement de l'anneau à retrait (18), c'est-à-dire après son retrait et donc lorsque l'opération de collage sous pression est terminée, l'anneau à retrait est enlevé des corps durs (13, 14) enfoncés.
  5. Procédé selon la revendication 4, caractérisé en ce que sur son côté intérieur, l'anneau à retrait (18) présente dans les zones situées en face des corps durs (13, 14) à enfoncer des reliefs (21) correspondants orientés radialement vers l'intérieur.
  6. Procédé selon la revendication 4, caractérisé en ce que lorsque le blindage de surface est appliqué sur une garniture annulaire fixée sur un corps de base du cylindre, la garniture est d'abord fixée sur le corps de base du cylindre sans que des corps durs y soient insérés, en particulier par application par retrait et/ou collage, suite à quoi les corps durs (13, 14) sont insérés dans les creux (11, 12) de la garniture et l'anneau à retrait (18) chauffé qui sert d'outil est passé autour des corps durs (13, 14) insérés, pour réaliser l'opération de collage sous pression.
EP00115889A 1999-08-14 2000-07-25 Rouleau broyeur et procédé de fabrication correspondente Expired - Lifetime EP1077087B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19938652 1999-08-14
DE19938652 1999-08-14
DE10014836 2000-03-24
DE10014836A DE10014836A1 (de) 1999-08-14 2000-03-24 Mahlwalze und Verfahren zu ihrer Herstellung

Publications (2)

Publication Number Publication Date
EP1077087A1 EP1077087A1 (fr) 2001-02-21
EP1077087B1 true EP1077087B1 (fr) 2003-05-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115889A Expired - Lifetime EP1077087B1 (fr) 1999-08-14 2000-07-25 Rouleau broyeur et procédé de fabrication correspondente

Country Status (3)

Country Link
US (1) US6523767B1 (fr)
EP (1) EP1077087B1 (fr)
DK (1) DK1077087T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011048226A1 (fr) 2009-10-24 2011-04-28 Siempelkamp Giesserei Gmbh Cylindre broyeur et bandage annulaire pour un cylindre broyeur
CN102917798A (zh) * 2010-06-18 2013-02-06 Khd洪保德韦达克有限公司 用于辊压机的成型轮箍
DE102014006427A1 (de) 2014-05-02 2015-11-05 Khd Humboldt Wedag Gmbh Walze mit Verschleißschutzschicht für eine Rollenpresse

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SE525181C2 (sv) * 2002-05-23 2004-12-21 Sandvik Ab För en kross avsedd slitdel samt sätt att framställa denna
DE102005027729A1 (de) * 2005-06-16 2006-12-28 Khd Humboldt Wedag Gmbh Walzenbrecher zum Brechen von heißem Zementklinker
US7100651B1 (en) * 2005-08-09 2006-09-05 Sandvik Intellectual Property Ab Stump grinding disk and wear strips therefor
FI118518B (fi) * 2006-01-25 2007-12-14 Metso Powdermet Oy Menetelmä monimateriaalikomponentin tai -rakenteen valmistamiseksi sekä monimateriaalikomponentin tai -rakenteen käyttö
US8128015B2 (en) * 2007-07-11 2012-03-06 Ssi Shredding Systems, Inc. Tool mounting
US20100151268A1 (en) 2008-12-11 2010-06-17 Flsmidth A/S Wear-resistant hard surfacing method and article
US8420201B2 (en) * 2009-07-09 2013-04-16 Scoperta, Inc. Wear-resistant attachments for high-wear applications
DE102009039928B3 (de) * 2009-08-17 2011-03-03 Khd Humboldt Wedag Gmbh Rollenpressen-Rasterpanzerung mit ringförmigen Bolzen und Verfahren zur Erneuerung der Bewehrung dieser Rasterpanzerung
AU2009356851B2 (en) 2009-12-18 2014-06-05 Metso Sweden Ab Bimaterial elongated insert member for a grinding roll
WO2011128789A2 (fr) * 2010-04-16 2011-10-20 Flsmidth A/S Rouleau résistant à l'usure
US8281473B2 (en) 2010-04-23 2012-10-09 Flsmidth A/S Wearable surface for a device configured for material comminution
US8484824B2 (en) 2010-09-01 2013-07-16 Flsmidth A/S Method of forming a wearable surface of a body
US8336180B2 (en) 2010-09-29 2012-12-25 Flsmidth A/S Method of forming or repairing devices configured to comminute material
DE202010013735U1 (de) * 2010-09-29 2012-01-13 Maschinenfabrik Köppern GmbH & Co KG Walzenpresse
US9375718B2 (en) 2011-10-18 2016-06-28 Diamond Power International, Inc. Shaft-to-roller attachment for clinker grinder roller
DE102012102199A1 (de) * 2012-03-15 2013-09-19 Maschinenfabrik Köppern GmbH & Co KG Presswalze
WO2014204507A1 (fr) * 2013-06-20 2014-12-24 Flsmidth A/S Protection modulaire pour cylindres de broyage
CN104084259B (zh) * 2014-08-01 2017-02-22 张珂 一种辊子及其辊压装置
DE112016004083T5 (de) 2015-09-09 2018-06-07 Flsmidth A/S Dichtung für eine zerkleinerungsvorrichtung
WO2019159119A1 (fr) 2018-02-15 2019-08-22 Flsmidth A/S Mécanisme et procédé d'alimentation de dispositif de broyage
CN108855377A (zh) * 2018-07-03 2018-11-23 上海电气上重碾磨特装设备有限公司 一种磨煤机用磨辊辊套及其制备方法
US11400457B2 (en) 2018-07-20 2022-08-02 Phiston Technologies, Inc. Solid state drive media destroyer
US10657345B1 (en) 2019-07-02 2020-05-19 Phiston Technologies, Inc. Media destruction verification apparatus
CN113894507A (zh) * 2021-11-02 2022-01-07 江苏福瑞斯精密机械科技有限公司 一种研磨辊加工方法

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011048226A1 (fr) 2009-10-24 2011-04-28 Siempelkamp Giesserei Gmbh Cylindre broyeur et bandage annulaire pour un cylindre broyeur
DE102009050636A1 (de) 2009-10-24 2011-05-05 Siempelkamp Giesserei Gmbh Mahlwalze und Ringbandage für eine Mahlwalze
DE102009050636B4 (de) * 2009-10-24 2011-07-07 Siempelkamp Giesserei GmbH, 47803 Mahlwalze und Ringbandage für eine Mahlwalze
CN102917798A (zh) * 2010-06-18 2013-02-06 Khd洪保德韦达克有限公司 用于辊压机的成型轮箍
CN102917798B (zh) * 2010-06-18 2014-11-05 Khd洪保德韦达克有限公司 辊压机用成型轮箍及其制法、用合金生产成型轮箍的用途
DE102014006427A1 (de) 2014-05-02 2015-11-05 Khd Humboldt Wedag Gmbh Walze mit Verschleißschutzschicht für eine Rollenpresse

Also Published As

Publication number Publication date
DK1077087T3 (da) 2003-08-04
EP1077087A1 (fr) 2001-02-21
US6523767B1 (en) 2003-02-25

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