EP0634217B1 - Verfahren zum Aufbau einer verschleissfesten Oberflächenpanzerung für die Walzen von Hochdruckwalzenpressen - Google Patents

Verfahren zum Aufbau einer verschleissfesten Oberflächenpanzerung für die Walzen von Hochdruckwalzenpressen Download PDF

Info

Publication number
EP0634217B1
EP0634217B1 EP94110787A EP94110787A EP0634217B1 EP 0634217 B1 EP0634217 B1 EP 0634217B1 EP 94110787 A EP94110787 A EP 94110787A EP 94110787 A EP94110787 A EP 94110787A EP 0634217 B1 EP0634217 B1 EP 0634217B1
Authority
EP
European Patent Office
Prior art keywords
roller
wear
welding
rollers
pressure
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
EP94110787A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0634217A1 (de
Inventor
Michael Dr. Wollner
Alsmann Ludger
Frank Fischer-Helwig
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.)
Deutz AG
Original Assignee
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 Deutz AG filed Critical Deutz AG
Publication of EP0634217A1 publication Critical patent/EP0634217A1/de
Application granted granted Critical
Publication of EP0634217B1 publication Critical patent/EP0634217B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 the construction of a wear-resistant surface armor for the rollers of high-pressure roller presses for pressure comminution of granular material, with a multiplicity of outwardly projecting profiles, in particular stud bolts, attached to the roller surface at a distance from one another.
  • brittle regrind is drawn into the roller gap, through which the two rotatably mounted counter-rotating rollers are separated from one another, where it is subjected to pressure comminution.
  • material bed comminution in the nip of a high-pressure roller press in which the individual particles of the ground material drawn into the nip by friction in a material bed, ie. H. are crushed in a material bed compressed between the two roller surfaces when an extremely high pressure is applied (EP-B-0 084 383). It is understood that the roller surfaces are subjected to extremely high stress and wear.
  • the invention is based, in particular for the rollers of high-pressure roller presses for pressure comminution of granular goods, to provide wear-resistant surface armouring which is as suitable as possible for autogenous wear protection and which is simple in terms of production technology and has a long service life with a minimal risk of cracking even when exposed to high pressures .
  • the large number of profiles attached to the roller surface such as, in particular, stud bolts
  • the profiles / Stud bolts are produced in that they are welded with the help of a mold, so that the profiles / bolts consist only of the discharge welding material itself.
  • a mold adapted to the contour of the roll surface is placed on the roll base or on its bandages / segments, which has radial through openings such as. B.
  • the profiles protruding from the lateral surface of the roller consist of weld metal which has been melted by build-up welding and solidified in the mold shape with a good fusion welded connection between the shape-welded profiles such as stud bolts and the roller base material. This minimizes the risk of cracks running deep into the roller base.
  • the alloy material (s) of the shape-welded profiles such as stud bolts have a high hardness of more than 50 HRC, at least in the radially outer areas. B. 60 HRC (Rockwell C hardness test).
  • the mold has cooling medium channels which are connected to an inlet and outlet for the cooling medium, such as, for. B. water can be connected. Due to the particularly liquid-cooled walls of the mold or its welding molds, structural modifications in the weld metal, namely in the then solidified profiles, as well as their structural properties such as hardness, toughness, wear resistance, etc. can be set in a targeted manner. In any case, metal-cutting preparatory work such as drilling, grooving, etc. is avoided in the surface armor according to the invention.
  • the drawing shows schematically in the detail the top of the shell of a roller, which is provided with the surface armor according to the invention.
  • the surface armor according to the invention.
  • the mold (11) is adapted to the contour of the roller surface and z. B. copper or a copper alloy existing mold (11) which is bar-shaped in the embodiment and z. B. can extend over the entire width of the roller surface.
  • the mold (11) is provided with radial through bores (12, 13, 14 etc.), the size and spacing of which corresponds to the field of the stud bolts.
  • the mold (11) has cooling water channels (15, 16), to each of which an inlet and outlet for the cooling water can be connected, which flows longitudinally through the mold.
  • the radial through openings (12, 13, 14 etc.) are filled with build-up welding material, after the welding material has solidified, the mold (11) is lifted off the roller surface (10), and the shape-welded stud bolts (17) created in this way remain with a very fixed fusion welded joint (18) on the roller surface (10).
  • the height of the stud bolts (17) can, for. B. 8 to 10 mm and their diameter z. B. 15 mm.
  • Adjacent stud bolts (17) are so closely spaced from each other of less than about 40 mm, so that the spaces or pockets formed between the bolts are so narrow that these spaces or pockets between the bolts with compressed fine-grained material are compressed in the material bed Are well filled in, which remains in the pockets during the roller revolutions as an autogenous roller wear protection.
  • the through bores (12, 13, 14 etc.) of the mold (11) can advantageously widen conically from top to bottom at a small angle in order to facilitate the lifting of the mold (11) from the roll surface (10) after the shape welding process.
  • Wear-resistant alloys in the form of cored wires, welding rods, build-up welding powder, etc. are preferably used as the material for the shape-welded profiles such as knobs (17) etc., and plasma powder build-up welding and plasma build-up welding with external wire feed can also be used.
  • the build-up welding can be carried out manually or robotized.
  • the build-up welding alloys used can be varied. There is e.g. B. the possibility of building up the radially outer build-up weld layers or welding alloys of the shape-welded studs from a different (harder) alloy material than the radially inner build-up weld layers per stud stud.
  • the mold (11) preferably consists of a material of sufficiently high thermal conductivity, heat resistance and a sufficiently high melting point, e.g. B. made of copper or a copper alloy. In special cases such as B. in the repair of damaged welded studs, the mold can also consist of ceramic material.
  • the wear-resistant surface armor of rollers according to the invention is not limited to stud bolts as profiles.
  • the profiles projecting outward from the roller surface (10) can also be web-shaped or strip-shaped bodies with an approximately rectangular cross section.
  • the through openings of the mold (11) do not consist of through bores, but instead of corresponding through slots which are filled with weld metal, after the solidification of which welded web-shaped roller profiles are formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP94110787A 1993-07-17 1994-07-12 Verfahren zum Aufbau einer verschleissfesten Oberflächenpanzerung für die Walzen von Hochdruckwalzenpressen Expired - Lifetime EP0634217B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4324074 1993-07-17
DE4324074A DE4324074A1 (de) 1993-07-17 1993-07-17 Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen und Verfahren zum Aufbau einer solchen Walzenpanzerung

Publications (2)

Publication Number Publication Date
EP0634217A1 EP0634217A1 (de) 1995-01-18
EP0634217B1 true EP0634217B1 (de) 1997-09-24

Family

ID=6493118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110787A Expired - Lifetime EP0634217B1 (de) 1993-07-17 1994-07-12 Verfahren zum Aufbau einer verschleissfesten Oberflächenpanzerung für die Walzen von Hochdruckwalzenpressen

Country Status (6)

Country Link
US (1) US5601520A (xx)
EP (1) EP0634217B1 (xx)
AT (1) ATE158517T1 (xx)
DE (2) DE4324074A1 (xx)
DK (1) DK0634217T3 (xx)
ZA (1) ZA945082B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659108B1 (de) * 1993-07-20 1998-10-07 Maschinenfabrik Köppern GmbH. & Co. KG Walzenpressen, insbesondere zum zerkleinern von stark abrasiven stoffen
DE19506600A1 (de) * 1995-02-24 1996-08-29 Krupp Polysius Ag Walze, Verfahren zur Herstellung einer Walze sowie Gutbettwalzenmühle
DE19618143A1 (de) * 1996-05-06 1997-11-13 Krupp Polysius Ag Mahlwalze sowie Betriebs- und Reparaturverfahren
DE19646030A1 (de) * 1996-11-08 1998-05-14 Deutz Ag Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruckwalzenpressen zur Druckzerkleinerung körnigen Gutes
DE19707130A1 (de) * 1997-02-22 1998-08-27 Kloeckner Humboldt Wedag Verschleißfeste Oberflächenpanzerung für die Walzen von Walzenmühlen zur Druckzerkleinerung körnigen Gutes
EP1077087B1 (de) 1999-08-14 2003-05-28 KHD Humboldt-Wedag AG Mahlwalze und Verfahren zu ihrer Herstellung
DE102004025175B4 (de) * 2004-05-21 2006-07-06 Kerr-Mcgee Pigments Gmbh Gutbett-Walzenmühle
DE102006010042A1 (de) * 2006-03-04 2007-09-06 Khd Humboldt Wedag Gmbh Hartkörper für den autogenen Verschleißschutz von Walzenoberflächen
CN100441367C (zh) * 2006-12-20 2008-12-10 王荫森 电喷击磨辊的生产工艺
DE102007012102A1 (de) * 2007-03-13 2008-09-18 Polysius Ag Verfahren zur Wiederaufarbeitung einer gebrauchten Mahlwalze
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
US9476304B2 (en) 2013-05-10 2016-10-25 Caterpillar Inc. Laser casting blade repair
CN104084259B (zh) * 2014-08-01 2017-02-22 张珂 一种辊子及其辊压装置
CN104174457B (zh) * 2014-08-06 2017-04-05 成都大宏立机器股份有限公司 高压辊磨机辊子护圈、辊子及装配方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412558A (en) * 1889-10-08 Surface for grinding and crushing
US4915A (en) * 1847-01-01 Improvement in uterine supporters
FR736225A (fr) * 1931-08-10 1932-11-21 Bretagne Atel Chantiers Procédé pour l'utilisation de la soudure à l'arc électrique, en vue de l'obtention d'un dépôt de métal de formes et dimensions déterminées
DE1061599B (de) * 1954-07-02 1959-07-16 Unipulver Ltd Rotor fuer Mahlvorrichtungen
US3156968A (en) * 1962-03-22 1964-11-17 Jr William D White Pressure roller and method of manufacture
DE1284266B (de) * 1964-08-22 1968-11-28 Doerries Gmbh Mahlwerkzeuge fuer Stiftmuehlen zum Zerkleinern, Zerfasern, Mahlen und/oder sonstigen Behandeln von Gut, insbesondere von Gut fuer die Papier-, Pappe- oder Kartonherstellung
CH479395A (de) * 1968-03-27 1969-10-15 H Geiger Maschf Walzenpresse, insbesondere für Rechengut
US3594533A (en) * 1968-07-12 1971-07-20 Mckay Co Welding apparatus
SE324991B (xx) * 1969-07-08 1970-06-15 Sandvikens Jernverks Ab
DE2704605B1 (de) * 1977-02-04 1978-01-19 Wahl Verschleiss Tech Abtriebsbestaendiger plattenfoermiger verbundkoerper und verfahren zu seiner herstellung
US4066862A (en) * 1977-05-27 1978-01-03 Tippmann Eugene R Method of building-up a layer of metal on a metal surface
DE3302176A1 (de) * 1983-01-24 1984-07-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes
DE3621747A1 (de) * 1986-06-28 1988-01-07 Werner Schatz Verfahren zur herstellung von gegen insbesondere reibverschleiss gepanzerten blechen
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
DD284611A5 (de) * 1988-09-22 1990-11-21 Kloeckner-Humboldt-Deutz Aktiengesellschaft,De Verschleissfeste walzenbeschichtung und verfahren zum aufbauen der walzenbeschichtung
DE3926232A1 (de) * 1988-09-22 1990-03-29 Kloeckner Humboldt Deutz Ag Verschleissfeste walzenbeschichtung fuer die walzen von walzenpressen und verfahren zum aufbauen der walzenbeschichtung
DE3843173A1 (de) * 1988-12-22 1990-07-05 Kloeckner Humboldt Deutz Ag Verschleissfeste oberflaechenpanzerung fuer die walzen von walzenmaschinen, insbesondere hochdruck-walzenpressen
DE3926883A1 (de) * 1989-08-16 1991-02-21 Kloeckner Humboldt Deutz Ag Verschleissfeste oberflaechenpanzerung fuer die walzen von walzenmaschinen, insbesondere von hochdruck-walzenpressen
DE4036040C2 (de) * 1990-02-22 2000-11-23 Deutz Ag Verschleißfeste Oberflächenpanzerung für die Walzen von Walzenmaschinen, insbesondere von Hochdruck-Walzenpressen
DE4032615C2 (de) * 1990-10-15 1994-12-01 Kloeckner Humboldt Deutz Ag Verfahren und Vorrichtung zum Aufbringen einer verschleißfesten Panzerung auf die Walzenstirnseiten von Walzenpressen
DE4038798A1 (de) * 1990-12-05 1992-06-11 Krupp Polysius Ag Walzenmuehle
DE4210395A1 (de) * 1992-03-30 1993-10-07 Krupp Polysius Ag Walzenmühle

Also Published As

Publication number Publication date
DE59404133D1 (de) 1997-10-30
DE4324074A1 (de) 1995-01-19
ATE158517T1 (de) 1997-10-15
DK0634217T3 (da) 1998-03-30
ZA945082B (en) 1995-03-16
EP0634217A1 (de) 1995-01-18
US5601520A (en) 1997-02-11

Similar Documents

Publication Publication Date Title
EP0634217B1 (de) Verfahren zum Aufbau einer verschleissfesten Oberflächenpanzerung für die Walzen von Hochdruckwalzenpressen
EP1684907B1 (de) Mahlwalze für die druckzerkleinerung körnigen gutes
EP0563564B1 (de) Gutbettwalzenmühle
EP0443195B1 (de) Verschleissfeste Oberflächenpanzerung für die Walzen von Walzenmaschinen, insbesondere von Hochdruck-Walzenpressen
DE102009050636B4 (de) Mahlwalze und Ringbandage für eine Mahlwalze
EP1077087A1 (de) Mahlwalze und Verfahren zu ihrer Herstellung
EP0699479B1 (de) Verschleissfeste Walze für die Verwendung in Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes
EP0659108B1 (de) Walzenpressen, insbesondere zum zerkleinern von stark abrasiven stoffen
EP1502650B1 (de) Mahlwalze
DE3855713T2 (de) Siebplatten
EP0728523B1 (de) Walze, Verfahren zur Herstellung einer Walze sowie Gutbettwalzenmühle
EP2524071B1 (de) Werkzeug zur galvanischen beschichtung von gleitlagern
EP1804973B1 (de) Presswalzen-ringbandage und verfahren zu ihrer herstellung
WO2008098951A1 (de) Panzerung der oberflächen von rollenpressen-presswalzen
DE3926883A1 (de) Verschleissfeste oberflaechenpanzerung fuer die walzen von walzenmaschinen, insbesondere von hochdruck-walzenpressen
EP0872280B1 (de) Verschleissfeste Oberflächenpanzerung für die Walzen von Walzenmühlen zur Druckzerkleinerung körnigen Gutes
DE4235298A1 (de) Verfahren zum Herstellen einer Mahlwalze
EP0846496A1 (de) Verschleissfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes
DE10014836A1 (de) Mahlwalze und Verfahren zu ihrer Herstellung
EP0312744B1 (de) Innengekühlte Walze und Verfahren zu ihrer Herstellung
DE4422699A1 (de) Walze für eine Hochdruck-Walzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes
DE4235499A1 (de) Verfahren zum Aufbringen wenigstens einer harten Verschleißschicht auf eine Mahlwalze sowie Mahlwalze
EP1178253A1 (de) Verbundlagenrohr mit Flansch
DE4235297A1 (de) Verfahren zum Herstellen einer Mahlwalze sowie Mahlwalze
DE9422077U1 (de) Walzenpresse, insbesondere zum Zerkleinern von stark abrasiven Stoffen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19941107

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE DK ES FR IT LI SE

17Q First examination report despatched

Effective date: 19960402

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DEUTZ AKTIENGESELLSCHAFT

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK ES FR IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19970924

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19970924

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970924

REF Corresponds to:

Ref document number: 158517

Country of ref document: AT

Date of ref document: 19971015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59404133

Country of ref document: DE

Date of ref document: 19971030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19971224

EN Fr: translation not filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990811

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20000711

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010501

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP