EP3088085A1 - Protection contre usure laterale pour les rouleaux d'une presse a balles - Google Patents

Protection contre usure laterale pour les rouleaux d'une presse a balles Download PDF

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Publication number
EP3088085A1
EP3088085A1 EP16167478.3A EP16167478A EP3088085A1 EP 3088085 A1 EP3088085 A1 EP 3088085A1 EP 16167478 A EP16167478 A EP 16167478A EP 3088085 A1 EP3088085 A1 EP 3088085A1
Authority
EP
European Patent Office
Prior art keywords
roller
wear protection
hard
press according
base body
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
EP16167478.3A
Other languages
German (de)
English (en)
Other versions
EP3088085B1 (fr
Inventor
Meinhard Frangenberg
Jörg SCHNEPPER
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.)
Takraf GmbH
Original Assignee
MAN Takraf Fordertechnik GmbH
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 MAN Takraf Fordertechnik GmbH filed Critical MAN Takraf Fordertechnik GmbH
Publication of EP3088085A1 publication Critical patent/EP3088085A1/fr
Application granted granted Critical
Publication of EP3088085B1 publication Critical patent/EP3088085B1/fr
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
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the invention relates to the side wear protection for rolls of a roll press and a roll of a roll press having this side wear protection.
  • Roller presses also called good-bed roller mills, have two rollers of the same diameter, between which the material to be comminuted is introduced and forms a material bed there. Due to the opposite rotation of the rollers and the high pressure on the material between the rollers is a compaction.
  • the lateral conclusion of the wear protection seems problematic. So there the radial pressing forces as well as axial forces must be taken up.
  • the wear protection should include the outer areas of the end faces of the rollers, since laterally emerging material leads to wear there.
  • an end face armor in the region of the peripheral roll edge from a plurality of prefabricated hard bodies lined up in a circle.
  • the hard bodies are preferably hammerhead-shaped and mounted in radial grooves, in particular glued.
  • a disadvantage of this face armor is the risk of breakage of the hard body.
  • the attachment by means of gluing or soldering is not readily solvable and thus not a repair of the role, or very difficult.
  • the large manufacturing tolerances in components as carbide lead to large adhesive gaps or considerable problems during assembly when the hard bodies have excess.
  • the large adhesive gaps are problematic because no secure bonding is possible and the hard body can fall out of the roll surface during operation.
  • a large amount of adhesive must be used disadvantageously for the large adhesive gaps.
  • the object of the present invention is to propose a side wear protection for the role of a roller press, which has a long service life and allows easy and quick replacement.
  • the roller according to the invention for a roller press with a side wear protection consists of several side wear protection elements which enclose the roller edge.
  • the side wear protection elements according to the invention have a base body made of an elastic tough material. Furthermore, the main body has a threaded bolt on the side facing the roller axis of the body.
  • the basic body is cuboid.
  • ring sides the sides of the main body which adjoin other side wear protection elements
  • the grid armor of the roller can be designed such that a positive connection is formed with the adjacent side wear protection elements or the grid armor.
  • the base body is cylindrical with a round base.
  • this base is flattened on one side as a support for fixing the hard body.
  • the side facing the grid armor of the main body (the back) to the outside, ie convex, is particularly preferred Semicircular executed.
  • the grid armor has a corresponding concave design.
  • the mechanical stability of the side wear protection can be increased.
  • hard bodies are fastened on the cover side and the front side of the base body.
  • the hard bodies are preferably made of hard metal or a high-strength iron alloy (IFW), for example FeCrMoVC.
  • IFW high-strength iron alloy
  • an L-shaped hard body is provided which covers the top and front sides of the base body.
  • a hard body must be mounted on the body and the roller edge is fully protected.
  • the L-shaped hard body has a non-rotationally symmetrical basic shape, for example triangular, and the grid armor of the roller has contact surfaces for the hard body in this area. It is advantageous in a simple manner an anti-rotation for the body and thus also guaranteed the side wear protection.
  • the base body is enclosed by the grid armor of the roller so that the base body is axially fixed and so advantageous lateral forces, especially in the axial direction of the roll away can accommodate.
  • the Gundraj be performed around and the inclusion in the grid armor surrounds the round body by more than 180 °.
  • the hard bodies are soldered.
  • press, screw and other mechanical connections are possible.
  • thermal or other coatings of the wear body are also conceivable.
  • the volume of the required hard metal can be significantly reduced by means of the invention, which is equivalent to a significant cost savings. Passungsprobleme when installing the hard body, as in the prior art are not to be feared. Also, the expansion of the soverschl disclosetikes is easily possible by loosening the screw, the formerly necessary complex heating of the adhesive bond can be omitted.
  • the holding function of the soverschl disclosetiketti is ensured by the body of elastic material, which significantly reduces the risk of breakage.
  • Another positive effect is that due to the lower carbide insert in the edge region of the roller, the bathtub wear, that is to say wear-related to the roller center, leads to greater wear which leads to a decreasing radius.
  • the advantage is that required grinding volume to eliminate the bathtub-shaped wear is reduced.
  • clamping pins are arranged between the side wear element and the roller edge.
  • the dowel pins absorb axial or tangential forces.
  • the directed to the roller axis side of the side wear protection element have recordings for the dowel pins or the dowel pins themselves.
  • Particularly preferred per side wear protection each two dowel pins in the region of the ring sides are arranged.
  • axial and also tangential forces acting on the lateral wear protection by the dowel pins can be absorbed.
  • the threaded bolt is stepped, that is close to the main body of the threaded bolt has a force receiving area with a significantly larger diameter.
  • the thickened region of the threaded bolt which adjoins the base body is also referred to as a collar.
  • the collar is surrounded by a receiving area of the roller edge in the installed state, whereby advantageously the axial and tangential forces are absorbed.
  • the collar of the threaded bolt and the receiving area of the federal form a fit in the roll edge.
  • the gap dimensions of the Soverschl disclosetikes can be significantly reduced by the elastic suspension by means of threaded bolts.
  • elastic, tough steel grades in particular tempering, fine grain steels or spring steels.
  • other high strength tough metals e.g. Duralumin be used.
  • the support of the side wear protection element on the roller edge is a line support in the axial direction of the roller.
  • the roll according to the invention for a roller press has at least one side wear protection element described above.
  • the threaded bolt of the side wear protection element is guided and screwed through the roller edge.
  • the screwing of the threaded bolt has a biasing force in the radial direction.
  • an intermediate element is arranged between the lateral wear protection element and the roller edge.
  • the threaded bolt or a dowel pin is guided through the intermediate element or this otherwise fixed in the axial or tangential direction, so that slipping is prevented.
  • the height (ie the radius of the roller) of the side wear protection elements is adjustable.
  • a wear adjustment and necessary according to the prior art regrinding the side wear protection elements for wear adjustment can be omitted.
  • Particularly advantageous as well as the exchange of a single side wear protection element is greatly facilitated because its height is adjustable via the intermediate elements and grinding of the hard metal body for height adjustment is not necessary. This advantage is also evident when new side wear elements are used, the height of which can be adjusted without loops via the intermediate elements during installation.
  • FIG. 1 different views of a side wear protection element 1 according to the invention are shown.
  • This has a cuboid, elastic body 11, which is made of elastically tough steel.
  • the main body has an 11 has a threaded bolt thirteenth
  • This page is referred to as the base page.
  • the opposite side of this page, which forms the lateral surface of the roll is referred to as the cover page.
  • the in the installed state the end face of the roller forming side of the base body 11 is the front side and the front side opposite side, which is adjacent to the grid armor of the role, is the back.
  • the remaining sides adjacent to the adjacent side wear protection elements are referred to as ring sides.
  • the base has two semicircular recesses 15 in the region of the ring sides, which serve as a receptacle for dowel pins 2.
  • the semicircles are arranged so that two adjacent side wear protection elements 1 form a circular recess into which a round dowel pin can be inserted.
  • the base also has two circular line pads 14 aligned parallel to the sides of the ring. As a result, the line pads 14 are aligned with the two differently inclined planes.
  • FIGS. 2 to 4 show side wear protection elements 1 installed in a roll 4 state.
  • the threaded bolt 13 is guided by the roller edge 41 and fastened with a nut 5.
  • the side wear protection element 1 adjoins the grid armor 42 of the roller 4.
  • the back of the soverschl formulatetikides 1 each has a circular bulge in the region of the ring sides.
  • the adjacent to the side wear protection elements 1 side of the grid armor 42 has semicircular recesses which receive the circular bulges of the side wear protection elements 1.
  • the different bore shapes for receiving the side wear elements are in the grid geometry of the grid armor.
  • an exchangeable intermediate element 3 is arranged, which is used to adjust the height (Installation of different thicknesses for the height adjustment) of the soverschl formulatetikiata used.
  • the intermediate elements 3 surround the dowel pins 2 and also lie in a recess of the roller edge 41 and are thus secured against falling out.
  • the clamping sleeves 2 sit in through holes and can be adjusted by breaking in and out the various thicknesses of the intermediate elements 3 or possibly replaced by new ones.
  • FIGS. 5 and 6 show an alternative embodiment of the side wear protection according to the invention.
  • the axial and tangential forces are transmitted here via a collar 16 of the threaded bolt 13.
  • the main body 11 is cylindrical, and thus has simple geometries (helical shape) that can be easily manufactured.
  • the receptacle for the collar 44 is a cylindrical receptacle, with a plane perpendicular to the screw axis, flat bearing surface
  • the hole in the roller edge 41 for receiving the threaded bolt 13 has a corresponding receptacle 44 for the collar 16.
  • the bulge of the back of the side wear protection element 1 is centered in this embodiment on the back.
  • the intermediate element 3 surrounds here the threaded bolt 13 and is secured in position.
  • FIG. 7 This is an L-shaped design and forms the top and front side of the soverschl formulatetikiatas 1.
  • the elastic body 11 is cylindrical with a circular base, wherein the end face of the base body 11 is formed flattened and so forms a support for the attachment of the hard body 12.
  • FIG. 8 shows a roller 4 with side wear protection elements 1 accordingly FIG. 7
  • the grid armor 42 of the roller 4 has arcuate receptacles 45 for the main body 11 of the side wear protection element 1 according to FIG. 7
  • This arcuate receptacle 45 encloses the base body 13 (of the side wear protection element 1 according to FIG. 7 ) by more than 180 ° and thus forms an axial fixation of the base body 13.
  • contact surfaces 46 are arranged for the hard body 12, which form by their position an anti-rotation device for the hard body 12.
  • the side wear protection elements 1 are guided with the threaded bolt 13 through the roller edge 41 and screwed with a nut 5 and intermediate elements 3 are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Press Drives And Press Lines (AREA)
  • Actuator (AREA)
EP16167478.3A 2015-04-29 2016-04-28 Protection contre usure laterale pour les rouleaux d'une presse a balles Active EP3088085B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015207927.9A DE102015207927A1 (de) 2015-04-29 2015-04-29 Seitenverschleißschutz für die Rolle einer Rollenpresse

Publications (2)

Publication Number Publication Date
EP3088085A1 true EP3088085A1 (fr) 2016-11-02
EP3088085B1 EP3088085B1 (fr) 2020-11-25

Family

ID=55862599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16167478.3A Active EP3088085B1 (fr) 2015-04-29 2016-04-28 Protection contre usure laterale pour les rouleaux d'une presse a balles

Country Status (9)

Country Link
US (1) US20160318025A1 (fr)
EP (1) EP3088085B1 (fr)
AU (1) AU2016202752B2 (fr)
CA (1) CA2928353C (fr)
CL (1) CL2016001039A1 (fr)
DE (1) DE102015207927A1 (fr)
EA (1) EA031311B1 (fr)
MX (1) MX2016005615A (fr)
PE (1) PE20161088A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104084259B (zh) * 2014-08-01 2017-02-22 张珂 一种辊子及其辊压装置
DE102016200912A1 (de) * 2016-01-22 2017-07-27 Thyssenkrupp Ag Verschleißschutzelement für eine Zerkleinerungseinrichtung
US11931745B2 (en) * 2021-06-23 2024-03-19 Metso Outotec USA Inc. Grinding roll

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443195A1 (fr) 1990-02-22 1991-08-28 Klöckner-Humboldt-Deutz Aktiengesellschaft Blindage de surface résistant à l'usure pour les cylindres de machines à cylindres, en particulier les presses à cylindres à haute pression
DE4132474A1 (de) 1991-05-28 1992-12-03 Kloeckner Humboldt Deutz Ag Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen
EP1684907B1 (fr) 2003-11-22 2008-12-24 KHD Humboldt Wedag GmbH Cylindre de broyage pour le broyage par pression d'un materiau en grains
DE102010024221A1 (de) 2010-06-18 2011-12-22 Khd Humboldt Wedag Gmbh Profilierte Bandage für eine Rollenpresse
WO2013066933A1 (fr) * 2011-10-31 2013-05-10 Flsmidth A/S Protection de bord pour presses à rouleaux
EP2653230A2 (fr) * 2012-04-20 2013-10-23 Metso Minerals Industries, Inc. Rouleau de broyage avec protection des bords
US20140361108A1 (en) * 2011-12-27 2014-12-11 Flsmidth A/S Edge protection insert mounts for grinding rolls

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335115A1 (de) * 2003-07-31 2005-02-24 Polysius Ag Mahlwalze
DE102012102199A1 (de) * 2012-03-15 2013-09-19 Maschinenfabrik Köppern GmbH & Co KG Presswalze
WO2014071173A2 (fr) * 2012-10-31 2014-05-08 Flsmidth A/S Protection de bord à fixation de réception filetée interne

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443195A1 (fr) 1990-02-22 1991-08-28 Klöckner-Humboldt-Deutz Aktiengesellschaft Blindage de surface résistant à l'usure pour les cylindres de machines à cylindres, en particulier les presses à cylindres à haute pression
DE4132474A1 (de) 1991-05-28 1992-12-03 Kloeckner Humboldt Deutz Ag Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen
EP1684907B1 (fr) 2003-11-22 2008-12-24 KHD Humboldt Wedag GmbH Cylindre de broyage pour le broyage par pression d'un materiau en grains
DE102010024221A1 (de) 2010-06-18 2011-12-22 Khd Humboldt Wedag Gmbh Profilierte Bandage für eine Rollenpresse
WO2013066933A1 (fr) * 2011-10-31 2013-05-10 Flsmidth A/S Protection de bord pour presses à rouleaux
US20140361108A1 (en) * 2011-12-27 2014-12-11 Flsmidth A/S Edge protection insert mounts for grinding rolls
EP2653230A2 (fr) * 2012-04-20 2013-10-23 Metso Minerals Industries, Inc. Rouleau de broyage avec protection des bords

Also Published As

Publication number Publication date
PE20161088A1 (es) 2016-10-22
MX2016005615A (es) 2016-10-31
EA031311B1 (ru) 2018-12-28
CL2016001039A1 (es) 2017-02-17
CA2928353C (fr) 2018-05-01
EP3088085B1 (fr) 2020-11-25
US20160318025A1 (en) 2016-11-03
EA201600294A3 (ru) 2016-11-30
DE102015207927A1 (de) 2016-11-03
EA201600294A8 (ru) 2018-11-30
AU2016202752B2 (en) 2017-07-20
AU2016202752A1 (en) 2016-11-17
CA2928353A1 (fr) 2016-10-29
EA201600294A2 (ru) 2016-10-31

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