EP2498911A2 - Cylindre broyeur d'un broyeur à cylindre - Google Patents

Cylindre broyeur d'un broyeur à cylindre

Info

Publication number
EP2498911A2
EP2498911A2 EP11790945A EP11790945A EP2498911A2 EP 2498911 A2 EP2498911 A2 EP 2498911A2 EP 11790945 A EP11790945 A EP 11790945A EP 11790945 A EP11790945 A EP 11790945A EP 2498911 A2 EP2498911 A2 EP 2498911A2
Authority
EP
European Patent Office
Prior art keywords
roller
grinding
grinding roller
mill
wear
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.)
Granted
Application number
EP11790945A
Other languages
German (de)
English (en)
Other versions
EP2498911B1 (fr
Inventor
Ralf Martens
Herbert Pingel
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp 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 ThyssenKrupp Polysius AG filed Critical ThyssenKrupp Polysius AG
Publication of EP2498911A2 publication Critical patent/EP2498911A2/fr
Application granted granted Critical
Publication of EP2498911B1 publication Critical patent/EP2498911B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers
    • 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
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers

Definitions

  • the invention relates to a grinding roller of a roller mill with a roller shaft, a roller body and an outer wear protection wear ring.
  • the invention relates to a roller mill for crushing the brittle material to be ground with two counter-rotating grinding rollers.
  • a roller for processing iron or steel into thin plates or strips according to the preamble of claim 1 is known. It consists of a roll shaft with shrunk roll body, wherein the roll body has a heat treated hardened surface.
  • DE 28 43 173 C2 provides as a wear-resistant surface armor for rolls of rolling machines on several welded to a roll body metallic layers of different materials or hardnesses.
  • the invention is therefore based on the object, the operating costs of a
  • the grinding roller according to the invention of a roller mill consists essentially of a roller shaft, a roller base body and an outer, a wear protection wear ring, wherein the connection between the roller shaft and roller body is formed by shrink fit.
  • Roller base body is formed by at least two coaxially arranged intermediate rings.
  • the roller body By dividing the roller body into at least two coaxially arranged intermediate rings, it is sufficient if after repeated processing only the outermost intermediate ring is replaced, while previously the entire roller body was replaced. Due to this design, the operating costs of a roller mill can be reduced by up to 10% depending on the number of intermediate rings.
  • the roll main body or the intermediate rings are cast steel or forgings whose radial strength is limited by manufacturing technology.
  • the grinding roller according to the invention has the further advantage that the overall diameter of the roller body can be significantly increased by a correspondingly increased number of intermediate rings.
  • grinding rolls having large diameters of at least 3 m, preferably at least 3.5 m and more, can be easily produced.
  • connections between the intermediate rings and between the outer intermediate ring and the wear ring are preferably also formed by shrink fit, with either a conical or a cylindrical shrink fit can be used.
  • the cylindrical shrink fit will be chosen especially in later connections no longer to be solved, while the conical shrink fit can be solved easily.
  • a conical shrink fit is particularly advantageous for the connection of the outermost intermediate ring with the wear ring and with the next inner intermediate ring.
  • the grinding roller may have a diameter of at least 4.5 m and a width of at least 2.5 m.
  • the wear protection can also be formed by protruding from the surface of the wear ring profile bodies and / or hard surfacing.
  • the grinding rolls described above are used in a roll mill for the comminution of brittle material to be ground, in which two counter-rotating grinding rolls are provided.
  • This can happen in particular to act a high-pressure roller mill, in which a standing with at least one grinding roller in operative connection Kraftbeaufschlagungssystem to produce a grinding pressure of at least 50 MPa is provided.
  • Fig. 2 is a schematic sectional view of a grinding roller according to a first embodiment
  • Fig. 3 is a schematic sectional view of a grinding roller according to a second embodiment.
  • the roller mill shown in FIG. 1 for comminuting brittle grinding stock essentially has grinding rollers 1, 2, whose roller shafts 3, 4 are mounted in bearings 5, 6 and 7, 8.
  • the bearings 5 to 8 are preferably
  • roller mill is preferably a high-pressure roller press
  • other mills are also conceivable within the scope of the invention, such as, for example, a vertical roller mill, in which the grinding rollers described in more detail below could also be used.
  • both grinding rollers 1, 2 are constructed identically, two embodiments will be described in more detail below with reference to FIGS. 2 and 3 only with reference to the grinding roller 1.
  • the roller roller 1 is in the illustrated embodiment of the roller shaft 3, a roller body 13 and an outer wear wear a wear ring 14.
  • the roller body 13 is formed in the illustrated embodiment by 3 coaxially arranged intermediate rings 13a, 13b and 13c, wherein the intermediate rings 13a to 13c of the roller body can be made of different material. So it is conceivable that only the outer intermediate ring 13c from the usual, relatively expensive bearing steel, e.g. 18NiCrMol4-6 is made, while for the other intermediate rings 13a and 13b a sufficiently strong structural steel, for example S355J2G3 is used. This possibility is the
  • the grinding roller according to the invention can initially be processed several times only by processing the wear ring. Once the wear ring allows no further treatment and the roll body is attacked, only the outermost intermediate ring must be replaced 13c and 13'c of the roll body. The remaining roll body can therefore remain in use. Of course, it is also possible to convert a large grinding roller instead of removing the worn outer intermediate ring in a correspondingly smaller grinding roller. The operating costs of a grinding roller can be significantly reduced in this way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

L'invention concerne un cylindre broyeur d'un broyeur à cylindre, comprenant principalement un arbre de cylindre, un corps de base de cylindre et une bague d'usure extérieure présentant une protection contre l'usure, le raccordement entre l'arbre de cylindre et le corps de base de cylindre étant formé par ajustement fretté. Le corps de base de cylindre est formé par au moins deux bagues intermédiaires agencées coaxialement.
EP11790945.7A 2010-12-17 2011-11-28 Cylindre broyeur d'un broyeur à cylindres Not-in-force EP2498911B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010061309A DE102010061309B3 (de) 2010-12-17 2010-12-17 Mahlwalze einer Walzenmühle
PCT/EP2011/071156 WO2012079965A2 (fr) 2010-12-17 2011-11-28 Cylindre broyeur d'un broyeur à cylindre

Publications (2)

Publication Number Publication Date
EP2498911A2 true EP2498911A2 (fr) 2012-09-19
EP2498911B1 EP2498911B1 (fr) 2013-08-28

Family

ID=45093738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11790945.7A Not-in-force EP2498911B1 (fr) 2010-12-17 2011-11-28 Cylindre broyeur d'un broyeur à cylindres

Country Status (11)

Country Link
US (1) US9272284B2 (fr)
EP (1) EP2498911B1 (fr)
AU (1) AU2011344551B2 (fr)
BR (1) BR112013013401A8 (fr)
CA (1) CA2818801C (fr)
CL (1) CL2013001688A1 (fr)
DE (1) DE102010061309B3 (fr)
DK (1) DK2498911T3 (fr)
MX (1) MX2013006890A (fr)
PE (1) PE20131507A1 (fr)
WO (1) WO2012079965A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2691203T3 (es) * 2013-12-20 2018-11-26 Khd Humboldt Wedag Gmbh Procedimiento para mecanizar cavidades en un rodillo
DE102015222020A1 (de) 2015-11-09 2017-05-11 Thyssenkrupp Ag Werkzeug zur Bearbeitung von abrasiven Materialien
DE102019200190A1 (de) * 2019-01-09 2020-07-09 Thyssenkrupp Ag Mahlwalze mit Randelementen
CN110639218A (zh) * 2019-09-10 2020-01-03 上海上诺精细化学有限公司 聚合高分子降失水剂干燥及堆积密度提高的方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885241A (en) * 1930-10-24 1932-11-01 Charles B Duckworth Crushing roll
US1938995A (en) * 1931-08-17 1933-12-12 Ross E Beynon Built-up roll
US2588900A (en) * 1949-11-01 1952-03-11 Jeffrey Mfg Co Crusher-roll covering element
SE408326B (sv) 1977-10-07 1979-06-05 Asbrink Eiker Ab Regleranordning for hydraulanleggning
US4546527A (en) * 1981-12-01 1985-10-15 Kubota Ltd. Composite sleeve for use in rolling rolls for H-section steel and channel steel
DE3843173A1 (de) * 1988-12-22 1990-07-05 Kloeckner Humboldt Deutz Ag Verschleissfeste oberflaechenpanzerung fuer die walzen von walzenmaschinen, insbesondere hochdruck-walzenpressen
DE9422077U1 (de) * 1993-07-20 1998-01-22 Koeppern & Co Kg Maschf Walzenpresse, insbesondere zum Zerkleinern von stark abrasiven Stoffen
AU7531894A (en) 1993-07-20 1995-02-20 Gunter, Harald Roller presses, in particular for crushing strongly abrasive substances
US20120048976A1 (en) * 2009-04-20 2012-03-01 Hofmann Engineering Pty Ltd. Pressure roller

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012079965A2 *

Also Published As

Publication number Publication date
PE20131507A1 (es) 2014-01-10
AU2011344551A1 (en) 2013-06-13
DK2498911T3 (da) 2013-11-18
EP2498911B1 (fr) 2013-08-28
CL2013001688A1 (es) 2013-12-06
US20130248630A1 (en) 2013-09-26
MX2013006890A (es) 2013-07-05
DE102010061309B3 (de) 2012-05-24
CA2818801A1 (fr) 2012-06-21
WO2012079965A3 (fr) 2012-08-09
AU2011344551B2 (en) 2016-03-03
CA2818801C (fr) 2018-03-20
BR112013013401A2 (pt) 2016-09-06
US9272284B2 (en) 2016-03-01
BR112013013401A8 (pt) 2018-02-06
WO2012079965A2 (fr) 2012-06-21

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