EP0516952B1 - Verschleissfeste Mahlwalze für die Verwendung in Walzenmaschinen, insbesondere in Hochdruckwalzenpressen - Google Patents

Verschleissfeste Mahlwalze für die Verwendung in Walzenmaschinen, insbesondere in Hochdruckwalzenpressen Download PDF

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Publication number
EP0516952B1
EP0516952B1 EP92106594A EP92106594A EP0516952B1 EP 0516952 B1 EP0516952 B1 EP 0516952B1 EP 92106594 A EP92106594 A EP 92106594A EP 92106594 A EP92106594 A EP 92106594A EP 0516952 B1 EP0516952 B1 EP 0516952B1
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EP
European Patent Office
Prior art keywords
roller
wear
roll
pieces
material pieces
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
EP92106594A
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German (de)
English (en)
French (fr)
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EP0516952A1 (de
Inventor
Gustav Buchholz
Günter Keller
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
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0516952A1 publication Critical patent/EP0516952A1/de
Application granted granted Critical
Publication of EP0516952B1 publication Critical patent/EP0516952B1/de
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 wear-resistant grinding roller for use in high-pressure roller presses for material bed comminution of granular material with a large number of material pieces embedded in the roller body in the region of the roller surface.
  • EP-A-0 361 172 proposes armoring the rollers of a high-pressure roller press for comminuting granular material by hard-armored layers of a special alloy being successively welded onto the roller base body via corresponding buffer layers, viewed radially from the inside out the hardness of the welded-on armor layers should increase towards the outside.
  • the roller shell is composed of individual segments. Radially oriented sheets of softer material are poured into each segment, and the roll shell surface formed in this way is initially smooth cylindrical.
  • a corrugated roll surface profile should then result in the course of the roll circumferential direction, which should not improve the wear behavior, but rather the grind feed behavior of the grinding rolls formed in this way.
  • the surface of the known grinding roller which is initially smooth on the outside and then gradually corrugated during the operation of the roller, is not able to produce an autogenous, i.e. H. ensure wear protection caused by the grist itself.
  • a grinding roller for roller bowl mills is known, with a roller shell which has dovetail-shaped grooves distributed over the circumference, in which strip-shaped wear inserts are embedded are, whose outer contour can be set back in comparison to the contour of the rest of the roll shell, so that seen in the circumferential direction of the roll as a corrugated roll surface arises.
  • Autogenous wear protection is not associated with this; on the contrary, it appears from this document that it is important in the case of roller bowl mills that the friction caused by the difference in speed between the grinding bowl and the grinding roller prevents the solidification of caked material.
  • roller bowl mill namely in a roller bowl mill from Loesche GmbH for coal grinding, it is known to glue disc-shaped, oxide ceramic material pieces into recesses in the roller shell and to dimension them so that they do not protrude from the roller surface contour, but that their The upper edges are 3 mm behind the surface of the jacket.
  • roller bowl mills namely that the friction caused by the difference in speed between the grinding bowl and the grinding roller is intended to prevent solidification of caked material.
  • the invention has for its object to provide a grinding roller of the type set forth in the preamble of claim 1 in such a way that an extremely high resistance to wear can be achieved.
  • This object is achieved according to the invention with the measures of the characterizing part of claim 1.
  • Advantageous configurations are specified in the subclaims.
  • the inclusion of pin-shaped pieces of material in the roller material whereby part of the pin-shaped pieces of material protrude in a hedgehog shape from the roller body achieved that in the operation of the roller press - that is to say when carrying out the material bed comminution - the spaces formed between the protruding pin-shaped material pieces are filled with the comminuted material and remain filled.
  • the material in the nip is pressed into the spaces between the pin-shaped pieces of material protruding from the roller body, comminuted grain against grain there and compressed into agglomerates of very low porosity or very high density , It is these Gutagglomerate or Gutpreß stresses that then surely remain in the gaps even during the roller revolutions without binder and in this way form a permanent autogenous wear protection for the highly stressed roller surfaces.
  • the extremely high pressure load of> 50 MPa pressure or pressing force> 2000 kN / m roll length that occurs during the material bed crushing in the roll gap of a high-pressure roll press and acts on the material to be ground does not only act in a radial direction on the two press rolls and thus on their bearing blocks, but it also acts as a result of the approximately isostatic pressing in the area of the narrowest roll gap in the roll circumferential direction.
  • the good material which is pressed into the gap between the above pins in the nip of the high-pressure roller press, is comminuted there well (for example 30% ⁇ 90 ⁇ m) and is more dense to the very dense agglomerates or pressure scales Density is pressed, these Gutagglomerate then remain in the gaps and protect the hedgehog-shaped material pins against breakage (stress in the radial direction of the rollers) and shear (stress in the circumferential direction of the rollers), which was not predictable.
  • the high roller press pressure is therefore used simultaneously for two purposes, namely for the high-pressure material bed shredding itself and for the protection of the projecting pin-shaped material pieces, which in turn are the prerequisite for ensuring the ideal autogenous wear protection for the rotating roller surfaces.
  • the hard pin-shaped pieces of material can be embedded in the correspondingly shaped recesses in the roller body by gluing or pressing. In this way, a firm connection is made between the brittle, hard, pin-shaped material pieces and the roller body, which is retained due to the elastic nature of the roller body under external loads. According to the invention, however, it is also possible to achieve a firm connection between the pin-shaped material pieces and the roller body by another method, such as, for example, by shrinking, soldering, welding or screwing.
  • Fig. 1 shows the high-pressure roller press for crushing granular material, which is fed from above via a feed hopper, not shown in the drawing, the roller gap (15) between the two grinding rollers (10, 11).
  • a large number of wear-resistant material pieces designed in the form of pins (13) are embedded in the lateral surface (14) of the driven counter-rotating grinding rollers (10, 11).
  • any combination of pieces of material in the form of a pin can also be used with variable dimensions and with variable distances from one another in the outer surface of the grinding roller and in the end face of the grinding roller and firmly connected to them by gluing, pressing, soldering, welding, shrinking, etc.
  • pin-shaped material pieces (13) in which only a part is embedded in the lateral surface of the roller body (10, 11) and the remaining part is hedgehog-shaped from the roller body (10, 11) protrudes so that this protruding part is frustoconical at its upper end.
  • the truncated cone lateral surface (22) advantageously prevents lateral forces which can act on the protruding parts during operation of the grinding roller lead to undesirable torques and thus to the protruding parts of the pin-shaped material pieces breaking off.
  • the protruding part can also be hemispherical at its upper end.
  • the spaces between the protruding pin-shaped material pieces (13) can be up to the upper edge (21) of the pin-shaped material pieces (13) with another material (20) - this can be, for example, a ceramic mass or, for example, one with ceramic materials Trade plastic - be filled so that a closed roll surface (14) is obtained.
  • the gaps can, however, advantageously also initially remain free, so that they fill up granular material with material only when the roller machine is in operation and when the material bed comminution is carried out, and so form a closed roller surface (14).

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)
EP92106594A 1991-05-28 1992-04-16 Verschleissfeste Mahlwalze für die Verwendung in Walzenmaschinen, insbesondere in Hochdruckwalzenpressen Expired - Lifetime EP0516952B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4117435 1991-05-28
DE4117435 1991-05-28
DE4132474 1991-09-30
DE4132474A DE4132474A1 (de) 1991-05-28 1991-09-30 Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen

Publications (2)

Publication Number Publication Date
EP0516952A1 EP0516952A1 (de) 1992-12-09
EP0516952B1 true EP0516952B1 (de) 1995-09-20

Family

ID=25904010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106594A Expired - Lifetime EP0516952B1 (de) 1991-05-28 1992-04-16 Verschleissfeste Mahlwalze für die Verwendung in Walzenmaschinen, insbesondere in Hochdruckwalzenpressen

Country Status (10)

Country Link
US (1) US5269477A (es)
EP (1) EP0516952B1 (es)
JP (1) JPH05168960A (es)
AT (1) ATE128044T1 (es)
AU (1) AU655465B2 (es)
BR (1) BR9202010A (es)
CA (1) CA2069591A1 (es)
DE (2) DE4132474A1 (es)
DK (1) DK0516952T3 (es)
ES (1) ES2077278T3 (es)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5755033A (en) * 1993-07-20 1998-05-26 Maschinenfabrik Koppern Gmbh & Co. Kg Method of making a crushing roll
EP0872280A2 (de) * 1997-02-22 1998-10-21 KHD Humboldt-Wedag AG Verschleissfeste Oberflächenpanzerung für die Walzen von Walzenmühlen zur Druckzerkleinerung körnigen Gutes
US5860609A (en) * 1996-09-19 1999-01-19 Deutz Aktiengesellschaft Wear-resistant surface armoring for the rolls of high-pressure roll presses for the pressure disintegration of granular material
EP1077087A1 (de) 1999-08-14 2001-02-21 KHD Humboldt-Wedag AG Mahlwalze und Verfahren zu ihrer Herstellung
DE102004043562A1 (de) * 2004-09-09 2006-03-30 Khd Humboldt Wedag Gmbh Presswalzen-Ringbandage und Verfahren zu ihrer Herstellung
WO2007147474A1 (de) 2006-06-21 2007-12-27 Polysius Ag Verfahren zur wiederaufarbeitung einer gebrauchten mahlwalze
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
WO2010150225A1 (en) 2009-06-26 2010-12-29 Flsmidth A/S Wear-Resistant Roller
WO2011064685A1 (en) 2009-11-25 2011-06-03 Flsmidth A/S Wear -resistant roller for crushing and method for producing the same
WO2011128789A2 (en) 2010-04-16 2011-10-20 Flsmidth A/S Wear-resistant roller
CN102302964A (zh) * 2011-07-21 2012-01-04 吉林大学 一种具有仿生耦合耐磨表层的水泥磨辊及其制作方法
DE102011104854A1 (de) 2011-06-21 2012-12-27 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
DE202011110190U1 (de) 2011-12-20 2013-02-25 Khd Humboldt Wedag Gmbh Mahlwalze mit magnetischer Oberfläche
DE102011120178A1 (de) 2011-12-06 2013-06-06 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
DE102014006427A1 (de) 2014-05-02 2015-11-05 Khd Humboldt Wedag Gmbh Walze mit Verschleißschutzschicht für eine Rollenpresse
DE102017128347B3 (de) 2017-11-30 2019-01-31 Khd Humboldt Wedag Gmbh Mahlwalze für Hochdruckrollenpresse mit angestellten Hartkörpern

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DE4422699A1 (de) * 1994-06-29 1996-01-04 Kloeckner Humboldt Deutz Ag Walze für eine Hochdruck-Walzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes
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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)
DE19515568A1 (de) * 1995-04-27 1996-10-31 Krupp Polysius Ag Mahlelement und Verfahren zu dessen Herstellung
US5967431A (en) * 1996-03-18 1999-10-19 Astec Industries, Inc. Rock crusher having crushing-enhancing inserts, method for its production, and method for its use
AU4460097A (en) * 1996-09-20 1998-04-14 Christian Pfeiffer Maschinenfabrik Gmbh Partition for mills
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DE10137131A1 (de) * 2001-07-30 2003-02-13 Polysius Ag Oberflächenporfilierung für die Walze einer Hochdruck-Gutbettwalzenmühle
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DE10335115A1 (de) * 2003-07-31 2005-02-24 Polysius Ag Mahlwalze
DE10354679A1 (de) 2003-11-22 2005-06-30 Khd Humboldt Wedag Ag Mahlwalze für die Druckzerkleinerung körnigen Gutes
DE102005027729A1 (de) * 2005-06-16 2006-12-28 Khd Humboldt Wedag Gmbh Walzenbrecher zum Brechen von heißem Zementklinker
CN100443189C (zh) * 2006-09-19 2008-12-17 西安建筑科技大学 复合耐磨棒的制造工艺
WO2008106998A1 (de) * 2007-03-08 2008-09-12 Khd Humboldt Wedag Gmbh Walzen-paar für hochdruck-walzenpressen zur druckzerkleinerung körnigen gutes
US8241761B2 (en) * 2007-08-15 2012-08-14 Mikhail Garber Abrasion and impact resistant composite castings for working in condition of wear and high dynamic loads
US8550389B2 (en) * 2008-07-25 2013-10-08 Alstom Technology Ltd Imp mill having a uniform wear hammer arrangement
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DE102012102192B4 (de) 2012-03-15 2020-01-23 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze für eine Walzenpresse
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JP7246015B2 (ja) * 2018-12-21 2023-03-27 パナソニックＩｐマネジメント株式会社 ロールプレス装置
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Cited By (27)

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Publication number Priority date Publication date Assignee Title
US6086003A (en) * 1993-07-20 2000-07-11 Maschinenfabrik Koppern Gmbh & Co. Kg Roll press for crushing abrasive materials
US5755033A (en) * 1993-07-20 1998-05-26 Maschinenfabrik Koppern Gmbh & Co. Kg Method of making a crushing roll
US5860609A (en) * 1996-09-19 1999-01-19 Deutz Aktiengesellschaft Wear-resistant surface armoring for the rolls of high-pressure roll presses for the pressure disintegration of granular material
EP0872280A2 (de) * 1997-02-22 1998-10-21 KHD Humboldt-Wedag AG Verschleissfeste Oberflächenpanzerung für die Walzen von Walzenmühlen zur Druckzerkleinerung körnigen Gutes
EP1077087A1 (de) 1999-08-14 2001-02-21 KHD Humboldt-Wedag AG Mahlwalze und Verfahren zu ihrer Herstellung
DE102004043562B4 (de) * 2004-09-09 2016-09-29 Khd Humboldt Wedag Gmbh Presswalzen-Ringbandage und Verfahren zu ihrer Herstellung
DE102004043562A1 (de) * 2004-09-09 2006-03-30 Khd Humboldt Wedag Gmbh Presswalzen-Ringbandage und Verfahren zu ihrer Herstellung
WO2007147474A1 (de) 2006-06-21 2007-12-27 Polysius Ag Verfahren zur wiederaufarbeitung einer gebrauchten mahlwalze
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
WO2010150225A1 (en) 2009-06-26 2010-12-29 Flsmidth A/S Wear-Resistant Roller
WO2011064685A1 (en) 2009-11-25 2011-06-03 Flsmidth A/S Wear -resistant roller for crushing and method for producing the same
WO2011128789A2 (en) 2010-04-16 2011-10-20 Flsmidth A/S Wear-resistant roller
WO2011128789A3 (en) * 2010-04-16 2012-05-24 Flsmidth A/S Wear-resistant roller
WO2012175189A3 (de) * 2011-06-21 2013-05-23 Khd Humboldt Wedag Gmbh Mahlwalze mit in die oberfläche eingesetzten hartkörpern
WO2012175189A2 (de) 2011-06-21 2012-12-27 Khd Humboldt Wedag Gmbh Mahlwalze mit in die oberfläche eingesetzten hartkörpern
DE102011104854A1 (de) 2011-06-21 2012-12-27 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
DE102011104854B4 (de) * 2011-06-21 2015-06-11 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
CN102302964B (zh) * 2011-07-21 2013-05-22 吉林大学 一种具有仿生耦合耐磨表层的水泥磨辊及其制作方法
CN102302964A (zh) * 2011-07-21 2012-01-04 吉林大学 一种具有仿生耦合耐磨表层的水泥磨辊及其制作方法
DE102011120178A1 (de) 2011-12-06 2013-06-06 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
WO2013083419A1 (de) 2011-12-06 2013-06-13 Khd Humboldt Wedag Gmbh Mahlwalze mit in die oberfläche eingesetzten hartkörpern
DE102011120178B4 (de) * 2011-12-06 2013-08-14 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
DE102011120178C5 (de) * 2011-12-06 2016-04-14 Khd Humboldt Wedag Gmbh Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern
DE202011110190U1 (de) 2011-12-20 2013-02-25 Khd Humboldt Wedag Gmbh Mahlwalze mit magnetischer Oberfläche
DE102014006427A1 (de) 2014-05-02 2015-11-05 Khd Humboldt Wedag Gmbh Walze mit Verschleißschutzschicht für eine Rollenpresse
DE102017128347B3 (de) 2017-11-30 2019-01-31 Khd Humboldt Wedag Gmbh Mahlwalze für Hochdruckrollenpresse mit angestellten Hartkörpern

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BR9202010A (pt) 1993-01-12
CA2069591A1 (en) 1992-11-29
DE59203720D1 (de) 1995-10-26
AU1636092A (en) 1992-12-03
EP0516952A1 (de) 1992-12-09
AU655465B2 (en) 1994-12-22
DK0516952T3 (da) 1995-11-06
US5269477A (en) 1993-12-14
ES2077278T3 (es) 1995-11-16
JPH05168960A (ja) 1993-07-02
ATE128044T1 (de) 1995-10-15
DE4132474A1 (de) 1992-12-03

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