EP3405287A1 - Élément anti-usure pour dispositif de fragmentation - Google Patents

Élément anti-usure pour dispositif de fragmentation

Info

Publication number
EP3405287A1
EP3405287A1 EP17700339.9A EP17700339A EP3405287A1 EP 3405287 A1 EP3405287 A1 EP 3405287A1 EP 17700339 A EP17700339 A EP 17700339A EP 3405287 A1 EP3405287 A1 EP 3405287A1
Authority
EP
European Patent Office
Prior art keywords
wear
region
protection element
wear protection
recess
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
EP17700339.9A
Other languages
German (de)
English (en)
Other versions
EP3405287B1 (fr
Inventor
Baris Irmak
Ingo Neitemeier
Marcel BANNERT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions 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 ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3405287A1 publication Critical patent/EP3405287A1/fr
Application granted granted Critical
Publication of EP3405287B1 publication Critical patent/EP3405287B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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 a wear protection element for partial insertion into a recess on the surface of a wear surface of a comminution device and a comminution device with such a wear protection element.
  • comminution equipment such as grinding rollers
  • a high wear of the surface of a wear surface such as the grinding roller surface takes place during operation of the comminution device.
  • it is known, for example from DE 2006 010 042 A1, to apply additional wear protection elements to the surface of the grinding roller.
  • additional wear protection elements to the surface of the grinding roller.
  • the replacement of the wear protection elements for example, requires long downtime of the roll mill, as well as high maintenance costs.
  • the invention comprises a wear protection element for partial insertion into a recess on the surface of a wear surface of a comminution device, wherein the wear protection element has a fastening region that can be connected to the recess in the surface of the wear surface and has a wear region that at least partially emerges from the Surface of the wear surface protrudes.
  • the attachment area comprises a material which has a lower wear resistance than the material of the wear area, the wear area being at the level of the wear area Wear protection element extends beyond the attachment area addition.
  • the attachment area is also sleeve-shaped.
  • the comminution device is, for example, a roller mill, a roller crusher, a hammer mill or a vertical roller mill, the wear surface especially the surface of a grinding roller exposed to high wear during operation of the comminution device, the hammer tools and the surface of the grinding path of a hammer mill or the surface of the grinding mill Rolls and the grinding table of a vertical roller mill is.
  • the wear protection element is for example cylindrical or has a quadrangular cross-section.
  • one end of the wear protection elements is designed such that it can be fastened to the surface of the wear surface, in particular in a recess in the surface of the wear surface.
  • the wear protection element is plate-shaped. This is particularly advantageous in the application of such a wear protection element on, for example, a grinding path of a hammer mill or a vertical roller mill.
  • the attachment region is preferably arranged such that it is exposed to no or only a very small amount of wear during operation of the comminution device. In particular, the attachment region serves for fastening the wear protection element to the surface of the wear surface.
  • the wear region is arranged on the attachment region and extends beyond the attachment region in the height of the wear protection element, so that the wear region is exposed to the majority of the wear acting on the wear protection element.
  • Such a wear protection element is much cheaper to produce, since the formation of the entire wear protection element can be dispensed with from the more expensive, wear-resistant material.
  • the area of the wear protection element which is exposed to no or only a very small wear, has a less wear-resistant material, the lower material costs conditionally.
  • a sleeve-shaped attachment region offers the advantage of particularly easy manufacturability. Under sleeve-shaped is to be understood in particular that the attachment area cylindrical with a central, coaxial the wear area facing recess is formed.
  • the attachment region preferably has a lower cylindrical region on which the wear region rests and an upper, for example, thin-walled sleeve-shaped region which surrounds the wear region at least partially circumferentially.
  • the sleeve-shaped region has in particular at least the same or a greater longitudinal extension than the cylindrical region.
  • the wear region preferably has a cylindrical region, which is designed such that it interacts with the sleeve-shaped region of the fastening region with a precise fit. In particular, the wear area is completely formed as a cylinder.
  • the material of the wear region comprises a ceramic material, such as tungsten carbide WC, titanium carbide TiC, titanium carbonitride TiCN, vanadium carbide VC, chromium carbide CrC, tantalum carbide TaC, boron carbide BC, niobium carbide NbC, molybdenum carbide Mo2C, aluminum oxide Al2O3, zirconium oxide ZrO2, or silicon carbide SiC.
  • particles of industrial diamonds, in particular high-strength ceramics are preferably embedded in a ceramic or metallic matrix in the wear region.
  • the material of the attachment area according to another embodiment comprises a steel, such as a tempered structural steel.
  • the fastening region has a receiving region for receiving the wear region, which is designed such that it centers the wear region relative to the fastening region.
  • the receiving area is preferably formed on the side facing the wear area side surface of the mounting area.
  • the area of the wear area facing the fastening area is designed such that it interacts with the receiving area.
  • the receiving region has, according to a further embodiment, at least one recess and the wear region has a projection which interacts with the recess.
  • the receiving area has a projection and the wear area has a corresponding recess.
  • the Verschl disclose conspiracyelennent has according to a further embodiment, an end-side recess, in particular a bore, which points in the direction of the wear surface of the crushing device.
  • the fastening region preferably has the frontal recess.
  • the recess is formed in particular coaxially with the wear protection element. Such a recess causes a saving of material of the mounting area and thus a cost reduction of the wear protection element.
  • the wear region is arranged at least partially within the sleeve-shaped region of the attachment region according to a further embodiment.
  • the sleeve-shaped fastening region which is arranged at least partially around the wear region, offers the advantage of a simple arrangement of the wear region on the fastening region and a simple post-processing of the jacket
  • the attachment region and the wear region are bonded to one another in a material-locking manner according to a further embodiment, in particular adhesively bonded or soldered.
  • a screwing of the wear area and the mounting area is also conceivable.
  • a cohesive connection provides a simple way of attaching the wear region to the attachment region, wherein the wear region is preferably detachably attached to the attachment region, so that when wear of the wear region this is easily replaceable. An exchange of the mounting area is thus not necessary in the event of wear of the wear area.
  • the attachment area comprises less than 45%, preferably less than 30%, most preferably less than 20% of the wear protection element.
  • the invention further comprises a shredding device comprising a wear surface and a wear protection element as described above, wherein the wear protection element is at least partially in a recess in the surface wear surface, in particular a grinding roller attached.
  • the advantages described with respect to the wear protection element also apply to the shredding device with such a wear protection element.
  • the attachment region of the wear protection element is connected cohesively to the grinding roller according to a further embodiment, in particular welded, glued or soldered.
  • the attachment area is soldered or welded to the recess in the wear surface.
  • the comminution device is, for example, a grinding roller for comminuted comminution or a vertical roller mill.
  • FIG. 1 shows a schematic representation of a shredding device in a front view according to an exemplary embodiment.
  • FIG. 2 shows a schematic illustration of a grinding roller of the comminuting device according to FIG. 1.
  • Fig. 3-7 shows schematic representations of various embodiments of wear protection elements in a cross-sectional view.
  • a crushing device 10 in particular a roller mill is shown schematically.
  • the comminuting device 10 comprises two grinding rollers shown schematically as circles with wearing surfaces 12, 14, which have the same diameter and are arranged next to one another. Between the wear surfaces 12, 14 of the grinding rollers, a grinding gap is formed, which is adjustable, for example, in size.
  • the grinding rollers rotate in opposite directions to one another in the direction of rotation shown by the arrows, wherein the material to be ground passes through the grinding gap in the direction of the fall and is ground.
  • 2 shows an end region of a grinding roller, which has a wear surface 12 on which wear protection elements 16 are attached. The wear protection elements 16 are mounted in the outer periphery of the surface of the grinding roller.
  • the mutually spaced, adjacent wear protection elements 16 of FIG. 2 have a circular cross section. It is also conceivable that the wear protection elements 16 vary in size, the number, the cross-sectional shape and the arrangement over the surface of the grinding roller, for example, to compensate for local differences in wear during operation of the crusher 10. Furthermore, the grinding roller has wear protection elements 17 attached at its end, which for example have a rectangular cross section and are arranged in series next to each other in such a way that they form a ring over the circumference of the grinding roller. There are also other cross-sectional shapes of the wear protection elements 17 conceivable, which differ from the cross-sectional shape shown in Fig. 2. A spaced-apart arrangement of the wear protection element 17 is possible. In Fig.
  • FIG. 3 shows a wear protection element 16a not covered by the invention, which is arranged in a recess 26 in FIG. 1 with the wearing surface 12 of the grinding roller according to FIGS.
  • the wear protection element 16a has a fastening region 24 and a wear region 22, wherein the fastening region in the recess 26 is arranged on the surface of the wear surface 12 of the grinding roller and is connected to the wear surface 12 of the grinding roller.
  • the wear protection element 16a at the attachment region 24 with the recess in the surface of the wear surface 12 of the grinding roller cohesively, in particular welded, soldered or glued or positively connected, in particular screwed or wedged.
  • the wear region 22 of the wear protection element 16a is at least partially disposed outside of the recess 26 in the wear surface 12, so that it protrudes in the radial direction of the grinding roller, not shown, from the surface of the wear surface 12.
  • the fastening region 24 comprises about one third of the entire wear protection element 16a, wherein the wear region 22 comprises approximately the further two-thirds.
  • the fastening region 24 has a receiving region 18, which comprises the surface of the fastening region facing the wear region 22.
  • the receiving region 18 is arranged between the wear region 22 and the attachment region 24 and, in particular, curved, so that the attachment region 24 of the wear protection element 16a has an inwardly directed curvature at the end facing the wear region 22. This curvature serves to position the wear region 22 on the attachment region 24.
  • the wear region 22 of the wear protection element 16a has a material with a higher wear resistance than the material of the attachment region 24.
  • the wear region 22 comprises a ceramic material, such as tungsten carbide, titanium carbide, Titanium carbonitride, vanadium carbide, chromium carbide, tantalum carbide, boron carbide, niobium carbide, molybdenum carbide, alumina, zirconium oxide, or silicon carbide.
  • particles of industrial diamonds or high-strength ceramics may also be embedded in a ceramic or metallic matrix in the area of wear.
  • the wear region comprises a matrix material in which a plurality of particles are arranged.
  • the particles are, in particular, a highly wear-resistant material comprising, for example, diamond, ceramic or titanium.
  • the matrix material includes, for example, tungsten carbide.
  • the particles are in particular materially bonded, for example, by sintering with the matrix material.
  • the wear protection elements 16a are exposed to high wear, wherein in particular the wear region 22 of the wear protection elements 16a protruding from the surface of the wearing surfaces 12, 14 of the grinding rollers wears.
  • the wear-resistant material of the wear region 22 reduces the wear of the wear protection elements 16a considerably.
  • an embodiment of the fastening area the is exposed to no or only a very small amount of wear, dispensed from the more expensive, more wear-resistant material.
  • FIG. 4 shows a further exemplary embodiment of a wear protection element 16b, wherein the wear surface is not illustrated with the recess 26 in which the wear protection element 16b is arranged.
  • FIG. 4 shows a wear protection element 16b, which substantially corresponds to the wear protection element 16a of FIG. 1, wherein the receiving region, in particular the region of the attachment region 24 of the wear protection element 16b facing the wear region 22, has a recess which has a projection in the attachment region 24 facing area of the wear protection area 22 cooperates.
  • a recess in the fastening region 24 serves, in particular, for positioning the wear region 22 on the fastening region 24, wherein the wear region is centered relative to the fastening region 24.
  • the recess is formed, for example, cylindrical and centered.
  • FIG. 5 shows a wear protection element 16c which has a substantially sleeve-shaped fastening region 24, this extending along the lateral surface of the wear region 22 and the wear region 22 being arranged at least partially within the sleeve-shaped fastening region 24.
  • the sleeve-shaped fastening region 24 is formed of a softer, less wear-resistant material than the wear region 22.
  • the wear region 22 of the wear protection element 16c extends beyond the sleeve-shaped attachment region 24 in the longitudinal direction of the wear protection element 16c so that the wear region 22 protrudes from the sleeve-shaped attachment region 24.
  • the wear region 22 extends beyond the attachment region 24, in particular in the radial direction of the grinding roller.
  • FIG. 5 has a lower, radially inwardly pointing, fully cylindrical region on which the wear region 22 rests and a radially outwardly pointing, for example, thin-walled sleeve-shaped region which encloses the wear region 22 at least partially circumferentially.
  • FIG. 6 shows a wear protection element 16d, which substantially corresponds to the wear protection element 16c of FIG. 5, with the difference that the wear protection element 16d has a recess 20 in its attachment region 24.
  • the recess 20 is mounted on the front side in the mounting region 24 and, for example, cylindrical or conical.
  • the recess is designed to be particularly coaxial with the wear protection element 16d and serves, for example, for fastening the wear protection element 16d in the recess 26 in the wear surface of the comminuting device 10. Furthermore, the recess 20 causes a considerable saving in material of the fastening region 24.
  • FIG. 7 shows a wear protection element 16e not covered by the invention, which substantially corresponds to the wear protection element 16a of FIG. 3, with the difference that the wear protection element 16e in the attachment region 24 has a recess 20 according to FIG.
  • the receiving region 18 of the wear protection element 16e is essentially planar. A vaulted training is also conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

La présente invention concerne un élément anti-usure (16c) destiné à être inséré partiellement dans une cavité pratiquée dans la surface d'une surface d'usure d'un dispositif de fragmentation, l'élément anti-usure (16c) présentant une zone de fixation (24) qui peut être reliée à la cavité pratiquée dans la surface de la surface d'usure, et une zone d'usure (22) qui dépasse au moins partiellement de la surface de la surface d'usure. Selon l'invention, la zone de fixation (24) comprend une matière qui présente une résistance à l'usure plus faible que celle de la matière constitutive de la zone d'usure (22), et la zone d'usure (22) s'étend à la hauteur de l'élément anti-usure (16c) sur la zone de fixation (24) et la zone de fixation (24) a une forme de manchon.
EP17700339.9A 2016-01-22 2017-01-12 Élément anti-usure pour dispositif de fragmentation Active EP3405287B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016200912.5A DE102016200912A1 (de) 2016-01-22 2016-01-22 Verschleißschutzelement für eine Zerkleinerungseinrichtung
PCT/EP2017/050558 WO2017125309A1 (fr) 2016-01-22 2017-01-12 Élément anti-usure pour dispositif de fragmentation

Publications (2)

Publication Number Publication Date
EP3405287A1 true EP3405287A1 (fr) 2018-11-28
EP3405287B1 EP3405287B1 (fr) 2020-09-16

Family

ID=57796359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17700339.9A Active EP3405287B1 (fr) 2016-01-22 2017-01-12 Élément anti-usure pour dispositif de fragmentation

Country Status (11)

Country Link
US (1) US10695766B2 (fr)
EP (1) EP3405287B1 (fr)
CN (1) CN108472657B (fr)
AU (1) AU2017208399B2 (fr)
CA (1) CA3011769C (fr)
CL (1) CL2018001964A1 (fr)
DE (1) DE102016200912A1 (fr)
DK (1) DK3405287T3 (fr)
PE (1) PE20181395A1 (fr)
WO (1) WO2017125309A1 (fr)
ZA (1) ZA201804907B (fr)

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BE1027797B1 (de) * 2019-11-26 2021-06-23 Thyssenkrupp Ind Solutions Ag Verschleißschutzelement für eine Zerkleinerungseinrichtung
US20220410168A1 (en) * 2019-11-26 2022-12-29 Thyssenkrupp Industrial Solutions Ag Wear-resistant element for a comminuting apparatus
DE102020133970A1 (de) 2020-12-17 2022-06-23 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Radaranordnung für ein Kraftfahrzeug

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Also Published As

Publication number Publication date
US20190344282A1 (en) 2019-11-14
DE102016200912A1 (de) 2017-07-27
CN108472657B (zh) 2020-06-26
CA3011769A1 (fr) 2017-07-27
US10695766B2 (en) 2020-06-30
BR112018014874A2 (pt) 2018-12-11
CL2018001964A1 (es) 2018-11-30
AU2017208399A1 (en) 2018-08-09
AU2017208399B2 (en) 2019-08-15
ZA201804907B (en) 2019-06-26
WO2017125309A1 (fr) 2017-07-27
CA3011769C (fr) 2020-03-31
PE20181395A1 (es) 2018-09-07
DK3405287T3 (da) 2020-12-21
EP3405287B1 (fr) 2020-09-16
CN108472657A (zh) 2018-08-31

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