EP0383004B1 - Rouleaux pour presses à cylindres à haute pression - Google Patents

Rouleaux pour presses à cylindres à haute pression Download PDF

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Publication number
EP0383004B1
EP0383004B1 EP90100133A EP90100133A EP0383004B1 EP 0383004 B1 EP0383004 B1 EP 0383004B1 EP 90100133 A EP90100133 A EP 90100133A EP 90100133 A EP90100133 A EP 90100133A EP 0383004 B1 EP0383004 B1 EP 0383004B1
Authority
EP
European Patent Office
Prior art keywords
roller
wear
rollers
resistant
lateral
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.)
Revoked
Application number
EP90100133A
Other languages
German (de)
English (en)
Other versions
EP0383004A1 (fr
Inventor
Klaus-Dieter Dr. Partz
Rainer Dr. Beck
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6374226&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0383004(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0383004A1 publication Critical patent/EP0383004A1/fr
Application granted granted Critical
Publication of EP0383004B1 publication Critical patent/EP0383004B1/fr
Anticipated expiration legal-status Critical
Revoked 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 high-pressure rollers with two rotatably mounted counter-rotating rollers which are separated from one another by a nip for pressure comminution of granular material; see in particular EP-A-0271336.
  • EP-A-0 271 336 proposes, for wear protection, to armor the roller surfaces in the circumferential direction in a strip-like manner with differently wear-resistant materials, the strips being in the axial direction or at an angle to the roller axis of run up to 45 °, in order to create an uneven roller surface that improves the regrind due to different wear and thus to minimize wear overall.
  • Fig. 1 shows as a prior art detail of the top view of a high-pressure roller press with two rotatably mounted counter-rotating rollers (10, 11), which are separated from each other by a nip (12), in the granular material using a very high pressing pressure the material bed crushing described above is subjected.
  • the roll shells have a cylindrical surface in the original new state, which is indicated by the dashed lines (13, 14).
  • the roller surfaces are armored against wear.
  • the roller gap (12) resulting from the wear profiles (15, 16) does not become uncontrollably large during the operation of the roller machine, for the purpose of adjusting the roller gap, without the rollers touching inadmissible ways at the peripheral points that are not so badly worn , the components (17, 18) [as well as on the corresponding opposite roller edges] that have remained on the side of the roller and have not yet worn out are artificially ground or otherwise removed.
  • the volume of material to be abraded or removed or the lateral bead is indicated at (18) by left hatching.
  • the invention has for its object to design high-pressure rollers so that the lateral beads or trough-shaped wear profiles of the roller surfaces described above do not occur or only after a very long operating time.
  • the rollers according to the invention have wear-resistant roller armor, be it welded armor or a cast or rolled one-piece or multi-piece wear-resistant roller jacket.
  • the wear-resistant roller surface is designed so that the lateral portions of the wear-resistant roller surface located in the region of the roller ends wear out more quickly and this higher wear counteracts the formation of the lateral beads on the roller surface.
  • welded wear-resistant roller surface coatings this can be done by deliberately making less wear-resistant in the lateral roller end regions Materials or material welding layers are welded or welded on. This applies both to the new production of a wear-armored roller and to the regeneration of such a roller after it has worn out.
  • the rollers have a cast wear-resistant surface armor
  • the cast material for example based on chilled chrome cast iron, can be made less wear-resistant in the lateral roller surface end areas by locally introduced heating (tempering) than in the other areas of the surface armor .
  • Fig. 2 shows a wear-resistant roller (19) with a cylindrical outer contour, at the two ends of which there is a transition region (20a, 20b) in which towards the roller end faces (21a, 21b) Roll diameter decreases, linearly or domed outwards.
  • the advantage of the rollers according to the invention for the operation of the roller machine is that an adjustment of the roller geometry required by grinding the roller surface can be reduced to a minimum, if necessary at all.
  • the useful life of the wear-resistant roller armor is extended in the rollers according to the invention.
  • the costs and the availability of the roller machine are favorably influenced when using the rollers according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
  • Press Drives And Press Lines (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (5)

  1. Cylindres haute pression avec deux cylindres (10, 11) séparés l'un de l'autre par un intervalle (12) et montés de façon à pouvoir tourner en sens inverse pour la fragmentation sous pression d'une matière en grains, tandis que les surfaces de ces cylindres sont munies d'un cuirassement constitué alternativement d'un matériau résistant à l'usure et moins résistant à l'usure, caractérisés en ce que le matériau de la surface des cylindres soumise à l'usure est moins résistant à l'usure dans la zone de bordure latérale des cylindres (17, 18) que dans le reste de la surface des cylindres.
  2. Cylindres selon la revendication 1, caractérisés en ce que les cylindres (10, 11) comportent un cuirassement superficiel résistant à l'usure appliqué par soudage dans la zone de bordure latérale (17, 18) dans lequel moins de couches du matériau résistant à l'usure ont été appliquées ou bien incorporées par soudage.
  3. Cylindres selon la revendication 1, caractérisés en ce que les cylindres (10, 11) comportent un cuirassement superficiel résistant à l'usure venu de fonderie, et en ce que le matériau de fonderie, par exemple à base de chrome dur, est moins résistant à l'usure dans les zones de bordure latérales (17, 18) des cylindres, par exemple du fait d'un échauffement appliqué localement (revenu), que dans les autres parties du cuirassement superficiel.
  4. Cylindres (10, 11) selon la revendication 1, caractérisés en ce que lors de la coulée du cuirassement sur les zones de bordure latérales (17, 18) des cylindres, moins de matériaux résistant à l'usure sont incorporés au cuirassement.
  5. Cylindres (10, 11) selon la revendication 1, caractérisés en ce qu'aux extrémités des cylindres, le diamètre du cylindre décroît en direction des faces frontales (21a, 21b) du cylindre sur respectivement une zone de transition (20a, 20b).
EP90100133A 1989-02-16 1990-01-04 Rouleaux pour presses à cylindres à haute pression Revoked EP0383004B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904678 1989-02-16
DE3904678A DE3904678A1 (de) 1989-02-16 1989-02-16 Walzen fuer walzenmaschinen, insbesondere fuer hochdruck-walzenpressen

Publications (2)

Publication Number Publication Date
EP0383004A1 EP0383004A1 (fr) 1990-08-22
EP0383004B1 true EP0383004B1 (fr) 1994-03-16

Family

ID=6374226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100133A Revoked EP0383004B1 (fr) 1989-02-16 1990-01-04 Rouleaux pour presses à cylindres à haute pression

Country Status (4)

Country Link
EP (1) EP0383004B1 (fr)
AT (1) ATE102851T1 (fr)
DE (2) DE3904678A1 (fr)
DK (1) DK0383004T3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518192A (en) * 1994-03-15 1996-05-21 Kabushiki Kaisha Kobe Seiko Sho Vertical roller mill
DE10137131A1 (de) * 2001-07-30 2003-02-13 Polysius Ag Oberflächenporfilierung für die Walze einer Hochdruck-Gutbettwalzenmühle
DE102006003230A1 (de) * 2006-01-24 2007-07-26 Khd Humboldt Wedag Gmbh Walzen-Paar für Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes
WO2008106998A1 (fr) * 2007-03-08 2008-09-12 Khd Humboldt Wedag Gmbh Paire de meules pour broyeuses cylindriques haute pression servant à désagréger une matière granulée par application de pression
CN102962652B (zh) * 2012-12-17 2015-03-11 重庆京庆重型机械股份有限公司 一种辊压机辊套的加工方法
DE102013021764B4 (de) * 2013-12-20 2019-06-19 Khd Humboldt Wedag Gmbh Verfahren zur Einarbeitung von Vertiefungen in eine Walzenrolle
DE202014004257U1 (de) 2014-05-21 2014-06-12 Khd Humboldt Wedag Gmbh Rollenpresse zur Hochdruckbehandlung körnigen Mahlguts
DE102019200190A1 (de) * 2019-01-09 2020-07-09 Thyssenkrupp Ag Mahlwalze mit Randelementen
CN111231287B (zh) * 2020-01-17 2021-12-10 大连理工大学 一种橡胶缠绕成型压辊外形设计方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702059C (de) * 1938-09-07 1941-10-20 Ludwig Schoeffel Walze fuer schnellaufende Ein- und Mehrwalzenmuehlen
DE1050640B (fr) * 1956-10-06 1959-02-12
DE3302176A1 (de) * 1983-01-24 1984-07-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes
CA1304965C (fr) * 1986-08-11 1992-07-14 Copper Refineries Pty. Limited Bobin mere
JPS63143949A (ja) * 1986-12-09 1988-06-16 アイエヌジ商事株式会社 粉砕機に使用される破砕面部材

Also Published As

Publication number Publication date
EP0383004A1 (fr) 1990-08-22
DE59004961D1 (de) 1994-04-21
DK0383004T3 (da) 1995-03-27
DE3904678A1 (de) 1990-08-23
ATE102851T1 (de) 1994-04-15

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