EP1502650B1 - Mahlwalze - Google Patents

Mahlwalze Download PDF

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Publication number
EP1502650B1
EP1502650B1 EP04016484A EP04016484A EP1502650B1 EP 1502650 B1 EP1502650 B1 EP 1502650B1 EP 04016484 A EP04016484 A EP 04016484A EP 04016484 A EP04016484 A EP 04016484A EP 1502650 B1 EP1502650 B1 EP 1502650B1
Authority
EP
European Patent Office
Prior art keywords
wear protection
roller
grinding roller
protection elements
roller according
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.)
Active
Application number
EP04016484A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1502650A1 (de
Inventor
Egbert Burchardt
René Klymowsky
Johann Knecht
Norbert Patzelt
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
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 EP1502650A1 publication Critical patent/EP1502650A1/de
Application granted granted Critical
Publication of EP1502650B1 publication Critical patent/EP1502650B1/de
Active 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
    • 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 having a roller base body and a plurality of wear protection elements made of hard metal, which form at least part of the roller surface.
  • the roller surface is formed of flat zones, which consist of a highly wear-resistant material, wherein the spaces between the highly wear-resistant zones are filled with a material of other wear resistance.
  • the interspace material is a sinterable composite material and the highly wear resistant zones are formed by hot isostatic pressing hard bodies, wherein the interspace material and the material of the wear-resistant zones are fixed by a hot isostatic pressing on the base body and wherein the wear resistance of the interspace material corresponding to a desired, caused by wear profiling is substantially slightly higher or lower than the wear resistance of the hard body.
  • the wear on the roll surface could be lowered to an acceptable level.
  • the measures known to date do not provide adequate protection for the roll edges, or are not or not economically producible for large rolls, so that the introduction of the high-quality roll mill in the copper / gold industry is extremely difficult due to the high wear of the roll surface. So far, the areas of the roll edges were protected by a hard surfacing. However, the insufficient wear resistance requires frequent re-welding of the rolls in this area. Depending on the intensity, the life of the rollers is about 2-6 weeks, which greatly reduces the availability and high repair costs
  • a surface armor for rolls of high-pressure roller presses for crushing granular material which is provided with a plurality of spaced apart on the roll surface and outwardly protruding stud bolts.
  • the nubbolt each consist of a radially inner with the roll surface well weldable bolt part and a radially outer, harder bolt part made of hard metal.
  • a grinding roller according to the preamble of claim 1 is known, comprising a roller body and a plurality of wear protection elements made of hard metal, wherein the roller body in the circumferential direction extending recesses, in which a plurality of wear protection elements are arranged in the circumferential direction one behind the other.
  • the invention is therefore based on the object of specifying a new wear protection concept for the roll surface.
  • the grinding roller according to the invention consists of a roller base body and a plurality of wear protection elements made of hard metal, which form at least part of the roller surface. At least in the region of the roll ends, the roll main body provides in each case a circumferential recess which is designed to be open at the top and to the side surface of the grinding roll and in which the wear protection elements are arranged in the circumferential direction.
  • the wear protection elements form in this way a quasi-closed ring, which offers a high wear protection.
  • the wear protection elements are arranged directly behind one another in the recesses provided in the region of the roll edges.
  • the wear protection elements can be fastened for example by gluing, stapling or soldering directly on the roller body.
  • the wear protection elements are mounted on a support body, which consists of a material with lower hardness, in particular steel.
  • the holder body can be processed much better than the wear protection element and can therefore be adapted in a simple manner to the roller body.
  • the wear protection elements protrude in the region of the roll edges over the roller body, they take over in this area the function of a dam, in order to avoid the flow of the crushing material in the axial direction.
  • the surface of the wear protection elements can be formed smooth or profiled.
  • the grinding roller consists essentially of a roller base body 10 and a plurality of wear protection elements 11, 12, 13, 14, ...
  • the wear protection elements are made of hard metal and form at least part of the roller surface.
  • the roller base body 10 in the circumferential direction recesses 10.1, 10.2, 10.3, wherein in each recess a plurality of wear protection elements are arranged in the circumferential direction one behind the other.
  • the recesses preferably extend over the entire circumference and are provided at least in the region of the two roll ends 10a, 10b.
  • the wear protection elements are fixed in the circumferential recesses such that no material of the roller base body is present between two wear elements arranged one behind the other in the circumferential direction.
  • the distance of the wear protection elements in the circumferential direction of the roll surface is less than 5 mm.
  • the length of the wear protection elements in the circumferential direction is preferably 20-100 mm.
  • the recesses 10.1, 10.3 are dimensioned so that only one wear protection element 11, 13 is arranged in each recess in the axial direction.
  • Fig. 2 At the end of the roll 10b a recess 10.2 is shown, in which several wear protection elements 12, 14 can be arranged in the axial direction.
  • an effective edge protection can also be achieved if only one peripheral recess is provided at the roll ends, in which only one wear protection element is arranged in the axial direction.
  • the wear protection elements are rectangular in plan, preferably square.
  • each wear protection element on a support body 15, wherein the support body is suitably made of a material with lower hardness, in particular steel.
  • the attachment of the wear protection element on the support body can be done for example by gluing, but especially by brazing.
  • the holder body 15 has on its side opposite the wear protection element 11 side of a pin 16 which cooperates with a correspondingly complementarily shaped bore 10c in the roll body 10 together.
  • a fixation can be done in particular by gluing the pin in the hole.
  • the circumferential recesses are therefore provided with a number of pins corresponding number of holes.
  • the arranged on the roll edge wear protection elements 11, 12 are aligned so that it forms a wear protection of the roll surface with a page 11a and with a vertically disposed side 11b wear protection for the radially outer edge of a side surface of the grinding roller.
  • the support member 15 on the side facing the grinding roller side of the support member also has a second wear protection element 17 to protect the unprotected side of the support member from wear.
  • Adjacent wear protection elements are preferably arranged with such a small distance from each other that no autogenous wear protection is formed therebetween.
  • the wear protection elements can also be arranged over the entire width of the grinding roller.
  • profile body 18 are provided for the central region (see Fig. 4 ). These profile body 18, 11 may be like the wear protection elements or otherwise formed. They protrude upwards and are preferably spaced such that, during the milling process, the material to be comminuted is stored in the spaces which form in the circumferential direction, where it forms an autogenous wear protection layer.
  • the wear protection elements can be arranged flush with the base material at the roll edge or even in the roll center, so that there is no profiling in the axial direction.
  • the wear protection elements 11 arranged at the ends of the rolls can also protrude beyond the surface of the roll main body 10, as in FIG Fig. 4 is shown.
  • the wear protection elements 11 thus form over the entire circumference of the roller a dam and thereby avoid the flow of the crushing material in the axial direction (arrow 19).

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP04016484A 2003-07-31 2004-07-13 Mahlwalze Active EP1502650B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10335115 2003-07-31
DE10335115A DE10335115A1 (de) 2003-07-31 2003-07-31 Mahlwalze

Publications (2)

Publication Number Publication Date
EP1502650A1 EP1502650A1 (de) 2005-02-02
EP1502650B1 true EP1502650B1 (de) 2009-09-09

Family

ID=33521509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04016484A Active EP1502650B1 (de) 2003-07-31 2004-07-13 Mahlwalze

Country Status (10)

Country Link
US (1) US7510135B2 (es)
EP (1) EP1502650B1 (es)
AU (1) AU2004203273B2 (es)
BR (1) BRPI0403023A (es)
CA (1) CA2476153C (es)
CL (1) CL2004001815A1 (es)
DE (2) DE10335115A1 (es)
ES (1) ES2333321T3 (es)
PE (1) PE20050268A1 (es)
ZA (1) ZA200405585B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102192A1 (de) 2012-03-15 2013-09-19 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze für eine Walzenpresse
WO2013135540A1 (de) 2012-03-15 2013-09-19 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze
DE102013110893A1 (de) 2013-10-01 2015-04-02 Thyssenkrupp Industrial Solutions Ag Walzenmühle zur Zerkleinerung von sprödem Material
DE102016212239A1 (de) 2016-07-05 2018-01-11 Thyssenkrupp Ag Mahlwalze mit einer Kantenschutzvorrichtung

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE525181C2 (sv) * 2002-05-23 2004-12-21 Sandvik Ab För en kross avsedd slitdel samt sätt att framställa denna
DE10354679A1 (de) * 2003-11-22 2005-06-30 Khd Humboldt Wedag Ag Mahlwalze für die Druckzerkleinerung körnigen Gutes
US7641135B1 (en) * 2006-02-28 2010-01-05 Emily Lo Combinative cutting wheel of a rotary cutter of paper shredder
DE102006010042A1 (de) * 2006-03-04 2007-09-06 Khd Humboldt Wedag Gmbh Hartkörper für den autogenen Verschleißschutz von Walzenoberflächen
DE102006028546A1 (de) * 2006-06-21 2007-12-27 Polysius Ag Verfahren zur Wiederaufarbeitung einer gebrauchten Mahlwalze
DE102007004004B4 (de) * 2007-01-26 2016-09-01 Thyssenkrupp Industrial Solutions Ag Walzenmühle
DE102007012102A1 (de) * 2007-03-13 2008-09-18 Polysius Ag Verfahren zur Wiederaufarbeitung einer gebrauchten Mahlwalze
DE102007018090A1 (de) * 2007-04-17 2008-10-23 Polysius Ag Mahlwalze sowie Verfahren zur Wiederaufarbeitung
US9352325B2 (en) 2009-12-18 2016-05-31 Metso Minerals (Wear Protection) Ab Bimaterial elongated insert member for a grinding roll
DE102010016498A1 (de) * 2010-04-16 2011-10-20 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Schlagleiste für einen Prallbrecher, insbesondere einen Rotationsprallbrecher
AU2011241902A1 (en) * 2010-04-16 2012-10-25 Flsmidth A/S Wear-resistant roller
DE102010060236A1 (de) 2010-10-28 2012-05-03 Thyssenkrupp Polysius Ag Walzenkörper für eine Hochdruck-Walzenmühle
DE102011102386C5 (de) 2011-05-25 2015-03-19 Thyssenkrupp Industrial Solutions Ag Mahlwalze sowie eine Hochdruck-Walzenmühle
PE20141274A1 (es) * 2011-10-07 2014-10-11 Smidth As F L Componentes de desgaste de borde para prensas de rodillos
US8833687B2 (en) * 2012-04-20 2014-09-16 Metso Minerals Industries, Inc. Crushing roll with edge protection
WO2014179467A1 (en) * 2013-05-01 2014-11-06 Us Synthetic Corporation Roll assemblies including superhard inserts, high pressure grinder roll apparatuses using same, and methods of use
DE102013107798A1 (de) * 2013-07-22 2015-01-22 Thyssenkrupp Industrial Solutions Ag Walzenmühle
DE102013114516B4 (de) * 2013-12-19 2023-11-02 Flsmidth A/S Mahlwalze sowie Vorrichtung zur Bearbeitung einer Mahlwalze
DE102015207927A1 (de) * 2015-04-29 2016-11-03 Takraf Gmbh Seitenverschleißschutz für die Rolle einer Rollenpresse
DE102016200912A1 (de) * 2016-01-22 2017-07-27 Thyssenkrupp Ag Verschleißschutzelement für eine Zerkleinerungseinrichtung
NL2020403B1 (en) * 2018-02-08 2019-08-19 Weir Minerals Netherlands Bv A roll for a roller press suitable for comminution of granular material by interparticle crushing, as well as a roller press provided with such a roll.
DE102018113440A1 (de) * 2018-06-06 2019-12-12 Maschinenfabrik Köppern Gmbh & Co. Kg Walzenpresse
DE102019201097A1 (de) * 2019-01-29 2020-07-30 Thyssenkrupp Ag Verschleißschutzelement für eine Zerkleinerungsvorrichtung
DE102019201098A1 (de) * 2019-01-29 2020-07-30 Thyssenkrupp Ag Verschleißschutzelement für eine Zerkleinerungsvorrichtung
CN109876898A (zh) * 2019-03-05 2019-06-14 郑州机械研究所有限公司 一种具有表面横向梯度硬度的立磨磨辊

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US412558A (en) * 1889-10-08 Surface for grinding and crushing
US883619A (en) * 1906-03-26 1908-03-31 Ferdinand Mora Canda Crusher plate, head, and the like.
US1947440A (en) * 1932-02-16 1934-02-13 Milne Samuel Beater roll
US3195508A (en) * 1963-07-11 1965-07-20 Charles L Lehman Game and stock feeder
US4319719A (en) * 1979-09-27 1982-03-16 Minneapolis Electric Steel Castings Company Shell liner assembly for ore grinding mills
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
DK116888A (da) * 1987-03-06 1988-09-07 Kobe Steel Ltd Slagknusemaskine
DE3921419A1 (de) * 1989-06-29 1991-01-10 Loesche Gmbh Mahlflaeche von waelzmuehlen
DE4132474A1 (de) * 1991-05-28 1992-12-03 Kloeckner Humboldt Deutz Ag Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen
US5318231A (en) * 1992-10-20 1994-06-07 Norman J. Emanuel Rotary shredding cutters
US5755033A (en) * 1993-07-20 1998-05-26 Maschinenfabrik Koppern Gmbh & Co. Kg Method of making a crushing roll
DE4400797A1 (de) * 1994-01-13 1995-07-20 Krupp Polysius Ag Mahlwerkzeug für Walzenmühlen
US5421290A (en) * 1994-03-31 1995-06-06 Welch; Wilmer M. Animal feeder
DE4431563A1 (de) * 1994-09-05 1996-03-07 Kloeckner Humboldt Deutz Ag Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes (Unterlagen zu P 44 44 337.4 gegeben)
DE19506600A1 (de) * 1995-02-24 1996-08-29 Krupp Polysius Ag Walze, Verfahren zur Herstellung einer Walze sowie Gutbettwalzenmühle
US5794563A (en) * 1996-11-12 1998-08-18 Klepac; Daniel T. Stand-mounted game feeder apparatus
DE19707130A1 (de) * 1997-02-22 1998-08-27 Kloeckner Humboldt Wedag Verschleißfeste Oberflächenpanzerung für die Walzen von Walzenmühlen zur Druckzerkleinerung körnigen Gutes
US6481373B2 (en) * 1999-12-29 2002-11-19 Swetzig Deanna K. Programmable hay-forage feeder
US6305320B1 (en) * 2000-05-09 2001-10-23 John Fore Game feeder support assembly
US6622653B1 (en) * 2002-10-08 2003-09-23 Harlan Starnes, Jr. Animal feed support stand
USD486946S1 (en) * 2003-02-11 2004-02-17 Lawrence R. Castro Live animal feeder

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102192A1 (de) 2012-03-15 2013-09-19 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze für eine Walzenpresse
WO2013135425A1 (de) 2012-03-15 2013-09-19 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze für eine walzenpresse
WO2013135540A1 (de) 2012-03-15 2013-09-19 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze
DE102012102199A1 (de) 2012-03-15 2013-09-19 Maschinenfabrik Köppern GmbH & Co KG Presswalze
DE102012102192B4 (de) 2012-03-15 2020-01-23 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze für eine Walzenpresse
DE102013110893A1 (de) 2013-10-01 2015-04-02 Thyssenkrupp Industrial Solutions Ag Walzenmühle zur Zerkleinerung von sprödem Material
WO2015049050A1 (de) * 2013-10-01 2015-04-09 Thyssenkrupp Industrial Solutions Ag Walzenmühle zur zerkleinerung von sprödem material
DE102013110893B4 (de) * 2013-10-01 2017-04-06 Thyssenkrupp Ag Walzenmühle zur Zerkleinerung von sprödem Material
AU2014331412B2 (en) * 2013-10-01 2018-01-25 Flsmidth A/S Roller mill for the comminution of brittle material
DE102016212239A1 (de) 2016-07-05 2018-01-11 Thyssenkrupp Ag Mahlwalze mit einer Kantenschutzvorrichtung
WO2018007309A1 (de) 2016-07-05 2018-01-11 Thyssenkrupp Industrial Solutions Ag Mahlwalze mit einer kantenschutzvorrichtung
DE102016212239B4 (de) 2016-07-05 2018-05-09 Thyssenkrupp Ag Mahlwalze mit einer Kantenschutzvorrichtung

Also Published As

Publication number Publication date
AU2004203273B2 (en) 2008-12-11
DE10335115A1 (de) 2005-02-24
CA2476153A1 (en) 2005-01-31
CA2476153C (en) 2011-01-25
AU2004203273A1 (en) 2005-02-17
BRPI0403023A (pt) 2005-05-31
PE20050268A1 (es) 2005-04-15
ES2333321T3 (es) 2010-02-19
CL2004001815A1 (es) 2005-06-03
DE502004010027D1 (de) 2009-10-22
EP1502650A1 (de) 2005-02-02
US7510135B2 (en) 2009-03-31
US20050061901A1 (en) 2005-03-24
ZA200405585B (en) 2005-03-30

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