EP0383004A1 - Rollers for high-pressure roller presses - Google Patents

Rollers for high-pressure roller presses Download PDF

Info

Publication number
EP0383004A1
EP0383004A1 EP90100133A EP90100133A EP0383004A1 EP 0383004 A1 EP0383004 A1 EP 0383004A1 EP 90100133 A EP90100133 A EP 90100133A EP 90100133 A EP90100133 A EP 90100133A EP 0383004 A1 EP0383004 A1 EP 0383004A1
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.)
Granted
Application number
EP90100133A
Other languages
German (de)
French (fr)
Other versions
EP0383004B1 (en
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
Family has litigation
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(A1) "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/en
Application granted granted Critical
Publication of EP0383004B1 publication Critical patent/EP0383004B1/en
Anticipated expiration legal-status Critical
Revoked 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 rollers for roller machines, in particular for high-pressure roller presses with two rotatably mounted rollers which rotate in opposite directions and are separated from one another by a nip for pressure comminution of granular material.
  • roller crushers and roller mills In the case of roller crushers and roller mills, brittle ground material is drawn into the roller gap and subjected to pressure reduction there.
  • 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-PS 0 084 383). It is understood that the roller surfaces are subjected to extremely high stress and wear. It is therefore known to armor the roller surface by welding weld layers of hard metallic materials onto the roller base body or by connecting a one-piece or multi-part wear-resistant jacket made of cast or rolled material to the roller base body.
  • 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 pressure the material bed crushing described above is subjected.
  • the roller shells In the original new state, the roller shells have a cylindrical surface, which is indicated by the dashed lines (13, 14). The roller surfaces are armored against wear.
  • the trough-shaped or trough-shaped wear profile (15) of the roller (10) or (16) of the roller (11) described above is formed during operation of the high-pressure roller press, that is to say the rollers wear on the side Edge areas (17, 18) and on the opposite edge areas are not as strong as on the other surface areas.
  • 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 that remain on the side of the roller and have not yet worn out (17, 18) (as well as on the corresponding opposite roller edges) 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 is based on the object of designing rollers for roller machines, in particular for high-pressure roller presses, in such a way 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-part or multi-part wear-resistant roller jacket.
  • the wear-resistant roller surface designed so that the lateral parts 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.
  • this can be done by deliberately welding or welding in less wear-resistant materials or material welding layers in the lateral roller end regions. 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.
  • rollers have a cast, wear-resistant surface armor
  • the cast material e.g. B. on the basis of chilled cast iron, made less wear-resistant in the lateral roll surface end areas by locally introduced heating (tempering) than in the other areas of the surface armor.
  • roller armor in the lateral end regions Pour less wear-resistant materials into the 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, if at all necessary, be reduced to a minimum.
  • 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 influenced favorably when using the rollers according to the invention.

Abstract

In order to construct rollers (10, 11) for roller machines, in particular anti-wear armoured rollers for high-pressure roller presses for material bed crushing of granular material, in such a way that when operating the roller machine a recess-shaped or trough-shaped wear profile (15, 16) or lateral beads do not occur at the front-side ends of the roller surfaces, or only occur after a very long operating time, it is proposed according to the invention to construct the roller surface, which is per se wear-resistant, at its lateral edge regions (17, 18) in terms of wear technology in such a way that the lateral edge regions of the wear-resistant roller surface wear more rapidly in a selective manner, and this higher degree of wear counteracts the occurrence of the lateral beads on the roller surface or is counteracted by a matched roller geometry of the bead formation. <IMAGE>

Description

Die Erfindung betrifft Walzen für Walzenmaschi­nen, insbesondere für Hochdruck-Walzenpressen mit zwei drehbar gelagerten gegenläufig rotier­baren und durch einen Walzenspalt voneinander getrennten Walzen zur Druckzerkleinerung körni­gen Gutes.The invention relates to rollers for roller machines, in particular for high-pressure roller presses with two rotatably mounted rollers which rotate in opposite directions and are separated from one another by a nip for pressure comminution of granular material.

Bei Walzenbrechern und Walzenmühlen wird sprö­des Mahlgut in den Walzenspalt eingezogen und dort einer Druckzerkleinerung unterworfen. Be­kannt ist auch die sogenannte Gutbettzerkleine­rung im Walzenspalt einer Hochdruck-Walzenpres­se, bei der die einzelnen Partikel des durch Reibung in den Walzenspalt eingezogenen Mahlgu­tes in einem Gutbett, d. h. in einer zwischen den beiden Walzenoberflächen zusammengedrückten Materialschüttung bei Anwendung eines extrem hohen Druckes gegenseitig zerquetscht werden (EP-PS 0 084 383). Es versteht sich, daß dabei die Walzenoberflächen einer außerordentlich hohen Beanspruchung und einem hohen Verschleiß ausgesetzt sind. Es ist daher bekannt, die Wal­zenoberfläche dadurch zu panzern, indem man auf den Walzengrundkörper Schweißlagen aus harten metallischen Werkstoffen aufschweißt oder indem man mit dem Walzengrundkörper einen einteiligen oder mehrteiligen verschleißfesten Mantel aus gegossenem oder gewalztem Werkstoff verbindet.In the case of roller crushers and roller mills, brittle ground material is drawn into the roller gap and subjected to pressure reduction there. Also known is the so-called 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-PS 0 084 383). It is understood that the roller surfaces are subjected to extremely high stress and wear. It is therefore known to armor the roller surface by welding weld layers of hard metallic materials onto the roller base body or by connecting a one-piece or multi-part wear-resistant jacket made of cast or rolled material to the roller base body.

Beim Betrieb solcher Walzenpressen verschleißen die gepanzerten Walzenoberflächen aber nicht gleichmäßig. Es hat sich gezeigt, daß sich ins­besondere bei Walzenpanzerungen mit großen Schichtstärken aus verschleißfesten Werkstoffen im Betrieb ein mulden- oder wannenförmiges Ver­schleißprofil ausbildet, wie es schematisch in Fig. 1 dargestellt ist.When operating such roller presses, the armored roller surfaces do not wear evenly. It has been shown that a trough-shaped or trough-shaped wear profile is formed during operation, particularly in the case of roller armouring with large layer thicknesses made of wear-resistant materials, as is shown schematically in FIG. 1.

Fig. 1 zeigt als Stand der Technik ausschnitts­weise die Draufsicht auf eine Hochdruck-Walzen­presse mit zwei drehbar gelagerten gegenläufig rotierbaren Walzen (10, 11), die durch einen Walzenspalt (12) voneinander getrennt sind, in dem körniges Gut unter Anwendung eines sehr hohen Preßdruckes der oben beschriebenen Gut­bettzerkleinerung unterworfen wird. Die Walzen­mäntel haben im ursprünglichen neuen Zustand eine zylindrische Oberfläche, was durch die gestrichelten Linien (13, 14) angezeigt ist. Die Walzenoberflächen sind gegen Verschleiß gepanzert. Insbesondere bei großen Schichtstär­ken aus verschleißfesten Werkstoffen bildet sich im Betrieb der Hochdruck-Walzenpresse das oben beschriebene mulden- oder wannenförmige Verschleißprofil (15) der Walze (10) bzw. (16) der Walze (11) aus, d. h. die Walzen verschlei­ßen an den seitlichen Randbereichen (17, 18) sowie an den gegenüberliegenden Randbereichen nicht so stark wie an den übrigen Oberflächen­bereichen. Damit der sich durch die Verschleiß­profile (15, 16) ergebende Walzenspalt (12) während des Betriebes der Walzenmaschine nicht unkontrolliert groß wird, müssen zum Zwecke des Nachstellens des Walzenspaltes, ohne daß sich die Walzen an den nicht so stark verschlissenen Umfangsstellen in unzulässiger Weise berühren, die seitlich in der Walzenoberfläche verbliebe­nen und noch nicht verschlissenen Bestandteile (17, 18) (sowie an den entsprechenden gegen­überliegenden Walzenrändern) künstlich abge­schliffen oder anderweitig entfernt werden. Dies setzt eine geeignete Walzenbearbeitungs-­Einrichtung voraus und bedeutet zusätzliche Kosten sowie ein Herabsetzen der Verfügbarkeit der Walzenmaschine. Das jeweils abzuschleifende bzw. zu entfernende Materialvolumen bzw. der seitliche Wulst ist bei (18) durch Linksschraf­fur angedeutet.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 pressure the material bed crushing described above is subjected. In the original new state, the roller shells have a cylindrical surface, which is indicated by the dashed lines (13, 14). The roller surfaces are armored against wear. Especially with thick layers of wear-resistant materials, the trough-shaped or trough-shaped wear profile (15) of the roller (10) or (16) of the roller (11) described above is formed during operation of the high-pressure roller press, that is to say the rollers wear on the side Edge areas (17, 18) and on the opposite edge areas are not as strong as on the other surface areas. So that 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 that remain on the side of the roller and have not yet worn out (17, 18) (as well as on the corresponding opposite roller edges) are artificially ground or otherwise removed. This requires a suitable roll processing device and means additional costs and a reduction in the availability of the roll machine. The volume of material to be abraded or removed or the lateral bead is indicated at (18) by left hatching.

Der Erfindung liegt die Aufgabe zugrunde, Wal­zen für Walzenmaschinen, insbesondere für Hoch­druck-Walzenpressen so auszubilden, daß sich die oben beschriebenen seitlichen Wülste bzw. muldenförmigen Verschleißprofile der Walzen­oberflächen nicht oder nur nach sehr langer Betriebszeit einstellen.The invention is based on the object of designing rollers for roller machines, in particular for high-pressure roller presses, in such a way 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.

Diese Aufgabe wird gemäß der Erfindung mit einer Walzenausbildung gelöst, die mit vorteil­haften Ausgestaltungen in den Ansprüchen 1 bis 5 gekennzeichnet ist.This object is achieved according to the invention with a roller design, which is characterized in advantageous embodiments in claims 1 to 5.

Die erfindungsgemäßen Walzen haben eine ver­schleißfeste Walzenpanzerung, sei es eine ge­schweißte Panzerung oder einen gegossenen oder gewalzten einteiligen oder mehrteiligen ver­schleißfesten Walzenmantel. Erfindungsgemäß ist die an sich verschleißfeste Walzenoberfläche verschleißtechnisch so ausgebildet, daß die im Bereich der Walzenenden gelegenen seitlichen Anteile der verschleißfesten Walzenoberfläche gezielt schneller verschleißen und dieser höhere Verschleiß dem Entstehen der seitlichen Wulste auf der Walzenoberfläche entgegenwirkt. Dies kann bei geschweißten verschleißfesten Walzenoberflächenbeschichtungen dadurch gesche­hen, daß in den seitlichen Walzenendbereichen bewußt weniger verschleißbeständige Werkstoffe bzw. Werkstoffschweißlagen aufgeschweißt bzw. eingeschweißt werden. Dies gilt sowohl für die Neufertigung einer verschleißgepanzerten Walze als auch für die Regenerierung einer solchen Walze, nachdem sie verschlissen ist.The rollers according to the invention have wear-resistant roller armor, be it welded armor or a cast or rolled one-part or multi-part wear-resistant roller jacket. According to the invention the wear-resistant roller surface designed so that the lateral parts 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. In the case of welded wear-resistant roller surface coatings, this can be done by deliberately welding or welding in less wear-resistant materials or material welding layers in the lateral roller end regions. 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.

Weisen die Walzen eine gegossene verschleiß­feste Oberflächenpanzerung auf, so kann nach einem weiteren Merkmal der Erfindung der Guß­werkstoff, z. B. auf der Basis von Chromhart­guß, in den seitlichen Walzenoberflächenendbe­reichen durch örtlich eingebrachte Erwärmung (Anlassen) weniger verschleißfest gemacht wer­den als in den übrigen Bereichen der Oberflä­chenpanzerung.If the rollers have a cast, wear-resistant surface armor, then according to a further feature of the invention, the cast material, e.g. B. on the basis of chilled cast iron, made less wear-resistant in the lateral roll surface end areas by locally introduced heating (tempering) than in the other areas of the surface armor.

Nach einem weiteren Merkmal der Erfindung be­steht auch die Möglichkeit, beim Gießen der Walzenpanzerung in den seitlichen Endbereichen der Panzerung gießtechnisch weniger verschleiß­feste Werkstoffe einzugießen.According to a further feature of the invention, there is also the possibility of casting the roller armor in the lateral end regions Pour less wear-resistant materials into the armor.

Eine weitere Möglichkeit eines bewußt höheren Walzenkantenverschleisses kann dadurch erreicht werden, daß nach einem weiteren Merkmal an den Walzenenden der Walzendurchmesser über jeweils einen Übergangsbereich in Richtung zu den seit­lichen Walzenstirnseiten hin abnimmt. Diese Lösung ist in Fig. 2 dargestellt, die eine ver­schleißfeste Walze (19) mit einer zylindrischen Außenkontur zeigt, an deren beiden Enden sich ein Übergangsbereich (20a, 20b) anschließt, in dem in Richtung zu den Walzenstirnseiten (21a, 21b) hin der Walzendurchmesser abnimmt, und zwar linear oder auch nach außen ballig gewölbt.Another possibility of a deliberately higher roll edge wear can be achieved in that, according to a further feature, the roll diameter decreases at the roll ends over a respective transition area in the direction of the lateral roll end faces. This solution is shown in Fig. 2, which 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.

In jedem Fall besteht der Vorteil der erfin­dungsgemäßen Walzen für den Betrieb der Walzen­maschine darin, daß eine durch Schleifen der Walzenoberfläche erforderliche Anpassung der Walzengeometrie, wenn überhaupt noch nötig, auf ein Minimum reduziert werden kann. Jedenfalls ist bei den erfindungsgemäßen Walzen die aus­nutzbare Standzeit der verschleißfesten Walzen­panzerung verlängert. Insgesamt werden bei Ein­satz der erfindungsgemäßen Walzen die Kosten sowie die Verfügbarkeit der Walzenmaschine gün­stig beeinflußt.In any case, 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, if at all necessary, be reduced to a minimum. In any case, the useful life of the wear-resistant roller armor is extended in the rollers according to the invention. Overall, the costs and the availability of the roller machine are influenced favorably when using the rollers according to the invention.

Claims (5)

1. Walzen für Walzenmaschinen, insbesondere für Hochdruck-Walzenpressen mit zwei dreh­bar gelagerten gegenläufig rotierbaren und durch einen Walzenspalt voneinander ge­trennten Walzen zur Druckzerkleinerung kör­nigen Gutes, dadurch gekennzeichnet, daß der Werkstoff der dem Verschleiß unterlie­genden Walzenoberfläche im seitlichen Wal­zenrandbereich weniger verschleißfest ist als im übrigen Bereich der Walzenoberfläche.1. Rollers for roller machines, in particular for high-pressure roller presses with two rotatably mounted counter-rotating rollers separated by a roller nip for pressure reduction granular material, characterized in that the material of the roller surface subject to wear is less wear-resistant in the lateral roller edge area than in the rest of the area the roller surface. 2. Walzen nach Anspruch 1, dadurch gekenn­zeichnet, daß die Walzen eine aufgeschweiß­te verschleißfeste Oberflächenpanzerung aufweisen, in deren seitlichen Endbereichen weniger verschleißbeständige Werkstoff­schweißlagen aufgeschweißt bzw. einge­schweißt sind.2. Rollers according to claim 1, characterized in that the rollers have a welded-on wear-resistant surface armor, in the lateral end regions of which less wear-resistant material welding layers are welded or welded. 3. Walzen nach Anspruch 1, dadurch gekenn­zeichnet, daß die Walzen eine gegossene verschleißfeste Oberflächenpanzerung auf­weisen, und daß der Gußwerkstoff, z. B. auf der Basis von Chromhartguß, in den seitli­chen Walzenoberflächenendbereichen durch z. B. örtlich eingebrachte Erwärmung (Anlas­sen) weniger verschleißfest ist als in den übrigen Bereichen der Obenflächenpanzerung.3. Rollers according to claim 1, characterized in that the rollers have a cast wear-resistant surface armor, and that the cast material, for. B. on the basis of chilled cast iron, in the lateral roll surface end areas by z. B. locally introduced heating (tempering) is less wear-resistant than in the other areas of the top surface armor. 4. Walzen nach Anspruch 1, dadurch gekenn­zeichnet, daß beim Gießen der Walzenpanze­rung in den seitlichen Endbereichen der Panzerung weniger verschleißfeste Werkstof­fe eingegossen sind.4. Rollers according to claim 1, characterized in that less wear-resistant materials are cast in the casting of the roller armor in the lateral end regions of the armor. 5. Walzen für Walzenmaschinen, insbesondere nach Anspruch 1, dadurch gekennzeichnet, daß an den Walzenenden der Walzendurchmes­ser über jeweils einen Übergangsbereich (20a, 20b) in Richtung zu den Walzenstirn­seiten (21a, 21b) hin abnimmt.5. Rolls for roll machines, in particular according to claim 1, characterized in that at the roll ends of the roll diameter decreases over a respective transition region (20a, 20b) in the direction of the roll end faces (21a, 21b).
EP90100133A 1989-02-16 1990-01-04 Rollers for high-pressure roller presses Revoked EP0383004B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904678A DE3904678A1 (en) 1989-02-16 1989-02-16 ROLLERS FOR ROLLING MACHINES, ESPECIALLY FOR HIGH PRESSURE ROLLING PRESSES
DE3904678 1989-02-16

Publications (2)

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

Family

ID=6374226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100133A Revoked EP0383004B1 (en) 1989-02-16 1990-01-04 Rollers for high-pressure roller presses

Country Status (4)

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

Cited By (6)

* 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
DE102006003230A1 (en) * 2006-01-24 2007-07-26 Khd Humboldt Wedag Gmbh Pair of rollers e.g. for high pressure roller presses for milling granular goods under pressure, has two swiveling stored rotatable rollers which move in opposite directions
CN102962652A (en) * 2012-12-17 2013-03-13 重庆京庆重型机械股份有限公司 Processing method for roller sleeve of roller press
DE202014004257U1 (en) 2014-05-21 2014-06-12 Khd Humboldt Wedag Gmbh Roller press for high-pressure treatment of granular regrind
DE102013021764A1 (en) * 2013-12-20 2015-06-25 Khd Humboldt Wedag Gmbh Process for incorporating depressions in a roll of rollers
WO2020143997A1 (en) * 2019-01-09 2020-07-16 Thyssenkrupp Industrial Solutions Ag Grinding roller having peripheral elements

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137131A1 (en) * 2001-07-30 2003-02-13 Polysius Ag Roller for high pressure fluidized bed grinder has surface profiling with wear-resistant profiled bodies whose wear resistance matches stresses on rolling surface to achieve uniform wear over width of roller
WO2008106998A1 (en) * 2007-03-08 2008-09-12 Khd Humboldt Wedag Gmbh Roller set for high-pressure roller presses for the pressure crushing of granulate goods
CN111231287B (en) * 2020-01-17 2021-12-10 大连理工大学 Method for designing shape of rubber winding forming compression roller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084383B1 (en) * 1983-01-24 1986-06-18 Klöckner-Humboldt-Deutz Aktiengesellschaft Method for the continuous breaking up by compression of friable material
GB2193670A (en) * 1986-08-11 1988-02-17 Copper Refineries Pty Ltd Mill roll
EP0271336A2 (en) * 1986-12-09 1988-06-15 I N G Shoji Co., Ltd. Crushing members for crushers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702059C (en) * 1938-09-07 1941-10-20 Ludwig Schoeffel Roller for high-speed single and multi-roller mills
DE1050640B (en) * 1956-10-06 1959-02-12

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0084383B1 (en) * 1983-01-24 1986-06-18 Klöckner-Humboldt-Deutz Aktiengesellschaft Method for the continuous breaking up by compression of friable material
GB2193670A (en) * 1986-08-11 1988-02-17 Copper Refineries Pty Ltd Mill roll
EP0271336A2 (en) * 1986-12-09 1988-06-15 I N G Shoji Co., Ltd. Crushing members for crushers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZEMENT, KALK, GIPS, Band 41, Nr. 10, Oktober 1988, Wiesbaden E. GALANULIS "Betriebser- fahrungen mit einer Gutbett- -WalzenmÙhle fÙr abrasives Rohmaterial" Seiten 493-496 *

Cited By (7)

* 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
DE102006003230A1 (en) * 2006-01-24 2007-07-26 Khd Humboldt Wedag Gmbh Pair of rollers e.g. for high pressure roller presses for milling granular goods under pressure, has two swiveling stored rotatable rollers which move in opposite directions
CN102962652A (en) * 2012-12-17 2013-03-13 重庆京庆重型机械股份有限公司 Processing method for roller sleeve of roller press
DE102013021764A1 (en) * 2013-12-20 2015-06-25 Khd Humboldt Wedag Gmbh Process for incorporating depressions in a roll of rollers
DE102013021764B4 (en) 2013-12-20 2019-06-19 Khd Humboldt Wedag Gmbh Process for incorporating depressions in a roll of rollers
DE202014004257U1 (en) 2014-05-21 2014-06-12 Khd Humboldt Wedag Gmbh Roller press for high-pressure treatment of granular regrind
WO2020143997A1 (en) * 2019-01-09 2020-07-16 Thyssenkrupp Industrial Solutions Ag Grinding roller having peripheral elements

Also Published As

Publication number Publication date
DK0383004T3 (en) 1995-03-27
DE3904678A1 (en) 1990-08-23
ATE102851T1 (en) 1994-04-15
DE59004961D1 (en) 1994-04-21
EP0383004B1 (en) 1994-03-16

Similar Documents

Publication Publication Date Title
EP0563564B1 (en) Roller mill producing a bed of material
DE4132474A1 (en) WEAR-RESISTANT GRINDING ROLLER FOR USE IN ROLLING MACHINES, ESPECIALLY IN HIGH PRESSURE ROLLING PRESSES
DE3705051A1 (en) ROLLING MILL, IN PARTICULAR ROLLING PRESS OR ROLLING MILL
DE102010038197A1 (en) Roller mill for shredding brittle regrind
EP0383004B1 (en) Rollers for high-pressure roller presses
DE3223908A1 (en) ROLLER
DE3529303A1 (en) GLASS PANEL GRINDING MACHINE
DE3922638A1 (en) Twin-roller press esp. for granular material milling - has controller which reduces hydraulic cylinder pressure at end of sliding roller where gap is insufficient
EP0255714B1 (en) Multiple-roll rolling mill stand with shiftable intermediary rolls having tapered ends
DE3509004A1 (en) Belt-grinding machine
EP0689884B1 (en) Roller straightening machine for the straightening of profiles
EP0102014B1 (en) Rolling mill stand for rolling off strip material with different widths
DE102010035763A1 (en) Cooled sidewall for a roller press
DE3212724C2 (en)
DE4039744A1 (en) Eccentric roller breaker - has material fed to it by roller track in rear zone of which are smooth, ribbed or toothed pressure rollers
WO1990006178A1 (en) Non-wearing covering for the bearing surfaces of roller presses and a process for applying the covering
DE102011120178C5 (en) Grinding roller with hard bodies inserted into the surface
DE102016209247C5 (en) BEARING HOUSING SUPPORT OF A TWO-ROLL ROLL PRESS
DE4232045A1 (en) Brittle-material crusher with contra-rotating tools - has tool length less than dia. and gap between them less than thickness of crushed material in scab form
DE10105150C2 (en) shredder
EP0872280B1 (en) Wear-resistant surface coating for rollers of roller mills for pressure milling of granular material
DE3240931A1 (en) VERTICAL ROLL MILL
EP0022136A1 (en) Straightening machine with obliquely mounted rolls
DE202021103408U1 (en) high-pressure roller press
DE10050348C2 (en) Roller arrangement, in particular corrugated roller arrangement

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910208

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

Owner name: KLOECKNER-HUMBOLDT-DEUTZ AG

17Q First examination report despatched

Effective date: 19920210

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL 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: 19940316

Ref country code: SE

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: 19940316

Ref country code: NL

Effective date: 19940316

Ref country code: GB

Effective date: 19940316

REF Corresponds to:

Ref document number: 102851

Country of ref document: AT

Date of ref document: 19940415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59004961

Country of ref document: DE

Date of ref document: 19940421

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

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: 19940617

Ref country code: GR

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: 19940617

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940316

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: AT

Effective date: 19950104

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: 19950131

Ref country code: CH

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

Effective date: 19950131

Ref country code: BE

Effective date: 19950131

Ref country code: LU

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

Effective date: 19950131

26 Opposition filed

Opponent name: KRUPP POLYSIUS AG

Effective date: 19941212

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

BERE Be: lapsed

Owner name: KLOCKNER-HUMBOLDT-DEUTZ A.G.

Effective date: 19950131

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: FR

Payment date: 19951207

Year of fee payment: 7

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

Ref country code: DK

Payment date: 19951229

Year of fee payment: 7

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

Ref country code: DE

Payment date: 19960329

Year of fee payment: 7

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19960704