WO2015049050A1 - Broyeur à cylindres pour la désintégration d'une matière friable - Google Patents

Broyeur à cylindres pour la désintégration d'une matière friable Download PDF

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Publication number
WO2015049050A1
WO2015049050A1 PCT/EP2014/002672 EP2014002672W WO2015049050A1 WO 2015049050 A1 WO2015049050 A1 WO 2015049050A1 EP 2014002672 W EP2014002672 W EP 2014002672W WO 2015049050 A1 WO2015049050 A1 WO 2015049050A1
Authority
WO
WIPO (PCT)
Prior art keywords
protection elements
wear protection
roll mill
mill according
edge protection
Prior art date
Application number
PCT/EP2014/002672
Other languages
German (de)
English (en)
Inventor
Heinz SCHRÖDER
Egbert Burchardt
Silvio Lorenz
Thomas Mackert
Original Assignee
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51730486&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2015049050(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thyssenkrupp Industrial Solutions Ag filed Critical Thyssenkrupp Industrial Solutions Ag
Priority to AU2014331412A priority Critical patent/AU2014331412B2/en
Publication of WO2015049050A1 publication Critical patent/WO2015049050A1/fr
Priority to ZA2016/01901A priority patent/ZA201601901B/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers

Definitions

  • the invention relates to a roller mill for the comminution of brittle material.
  • Such roll mills are used for example in the cement and Mineraisindustrie for crushing limestone, dolomite or ore.
  • the roll surfaces are exposed to enormous wear, so that the grinding rollers must be recycled at regular intervals.
  • various wear protection concepts have been developed.
  • the outer jacket is formed by a plurality of segments, which are inserted in longitudinal grooves of the base body.
  • this design resulted in flexing of the segments on the body, causing premature failure.
  • EP 0 659 108 B1 proposes a wear protection layer which is applied over the entire surface to the base body and which has flat zones of a highly wear-resistant material, the spaces between the highly wear-resistant zones being filled with a material of other wear resistance.
  • this solution has the disadvantage that the wear protection is relatively expensive and also the repair requires a lot of effort, since usually the entire layer has to be renewed.
  • Recently, however, has proven a wear protection technique in which a plurality of pin-shaped profile bodies protrude from the peripheral surface of a body and the distance between the profile bodies is chosen so that during operation forms an autogenous wear protection layer of compressed material between the profile bodies.
  • Such a surface armor is described, for example, in EP 0 830 897 B1.
  • This wear protection concept has the advantage that individual, worn profile body can be replaced and also takes into account the Abrasivverschl impart resulting from a relative movement between regrind and grinding roller.
  • the invention is based on the object to further improve the edge protection of the roll mill.
  • the roller mill according to the invention for crushing brittle material provides two counter-rotating grinding rollers, each having a base body with a peripheral surface and two end faces, wherein the peripheral surface is provided with a suitable for forming an autogenous wear protection layer surface armor and in the transition region between the peripheral surface and the end faces in each case one formed from edge protection elements, closed wear protection ring is provided, wherein the edge protection elements have pin-shaped profile body, with which they are supported in radial bores of the main body.
  • the pin-shaped profile body of the edge protection elements also protrude on the side facing away from the holes from the edge protection elements and act there with the Oberfiambapanztation to form an autogenous wear protection layer together.
  • the pin-shaped profile body serve on the one hand for easy and secure attachment of the edge protection elements and on the other hand contribute to the formation of the autogenous wear protection layer, which just the particularly heavily loaded edge regions of the grinding rollers are additionally protected.
  • an adhesive including the pin-shaped profile body 9 in the fixation on the circumferential recess 11, which may be a one or more component adhesive.
  • a circumferential recess can be provided in the transition region between the contact surface and the end faces, which surface radially to the circumference and is axially open to the respective end face of the body.
  • the edge protection elements expediently have a bearing surface which is designed to be complementary to the contacting region of the base body.
  • the pin-shaped profile body are preferably cylindrical and / or conical. Furthermore, they can be formed in their shape and size equal or partially different.
  • the edge protection elements project axially beyond the end face and / or radially beyond the peripheral face.
  • the edge protection elements may be provided on the face facing the front side with an additional wear protection element. It can also be provided above all that the additional wear protection elements protrude radially beyond the edge protection elements and form a collar for limiting the autogenous wear protection layer.
  • the additional wear protection elements Connect wear protection segments or strips radially inward, which are attached to the additional wear protection elements or to the base body. It can also be provided that the additional wear protection elements protrude further in the axial direction over the main body than the other wear protection segments or strips and the outer boundary surface of the additional wear protection elements is chamfered to the other wear protection elements or bars.
  • each of these can be assigned a pin-shaped profile body for attachment.
  • the pin-shaped profile body are additionally or exclusively arranged in each case in the transition region of two edge protection elements, so that they are in each case in contact with two adjacent edge protection elements.
  • Fig. La is a schematic side view of an inventive
  • 1 b shows a schematic longitudinal section of a grinding roller
  • FIG. 2a enlarged sectional view of the roll mill in
  • FIG. 2b shows an enlarged sectional view of the roller mill according to FIG. 2a with inserted edge protection element
  • Fig. 3 to 9 are schematic sectional views of grinding rolls in the
  • Edge protection elements according to various embodiments, 10 is a side view of a grinding roller in the region of
  • 11 to 14 are plan views of the edge protection elements according to various conditions
  • the roller mill shown in Fig. 1 for crushing brittle material, such as limestone or ore, has two counter-rotating grinding rollers 1, 2, each having a base body 3 with a peripheral surface 4 and two end faces 5, 6, wherein the peripheral surface is provided with a suitable for forming an autogenous wear protection layer surface armor 7.
  • the surface armor of the circumferential surface 4 of the grinding rollers is formed by a multiplicity of profiled bodies 12, which are held in bores in the main body 3.
  • the profile body 12 protrude with one end from the peripheral surface 4 and the distance between the profile bodies is selected so that forms an autogenous wear protection layer 13 of compressed millbase in operation between the profile bodies.
  • a peripheral recess 11 is provided (FIG. 2 a) which is open radially to the peripheral surface 4 and axially to the respective end surface 5, 6 of the base body 3.
  • the edge protection elements 8 are held as shown in FIG. 2b, so that they form a closed wear protection ring.
  • the edge protection elements 8 in this case have a bearing surface which is configured complementary to the contacting region of the base body.
  • the pin-shaped profile body 9 is cylindrical and extends with its one end into a radial bore 10 of the base body 3 and protrudes with its other end upwards out of the edge protection element 8.
  • edge protection elements 8 The protruding from the edge protection elements 8 pin-shaped profile bodies 9 are arranged at a similar distance from the other profile bodies 12 and act - mit- this- zu- training of an autogenous ⁇ ⁇ Abrißstoff Anlagen- together, - so that an autogenous wear protection layer 13 is formed in the areas between the pin-shaped profile bodies 9 and the profiled bodies 12 located radially further inside. In this way, at least a part of the radially outer peripheral surface of the edge protection elements 8 is protected by the autogenous wear protection layer 13. Nevertheless, the edge protection elements 8 will expediently be formed from a harder material than the main body 3.
  • the edge protection elements preferably consist of a hard metal alloy.
  • the edge protection element 8 is provided with an additional wear protection element 14 on the side facing the end face.
  • the recess 1 1 is dimensioned in this case so that both the edge protection element 8 and the additional wear protection element 14 are accommodated, wherein the additional wear protection element is flush with the peripheral surface 4 and the end face 6 and 5, respectively.
  • the additional wear protection element can be made wear-resistant to a particular extent in order to better protect, in particular, the critical edge region.
  • the additional Verschdaletikelement 14.1 is axially beyond the end face 6 and on the end face 6 of the body 3 close to the additional wear protection elements 14.1 more wear protection segments or strips 15.1, which on the additional closing elements 14.1 or on the base body. 3 are attached. These further wear protection segments or strips 15.1 are used to better protect the end face 6. In this area, however, the wear loads are significantly reduced, so that as a material in addition to ceramic or hard metal, for example, segments of wear-resistant sheet into consideration While in the previous embodiments, the profile bodies 9, 9.1 were cylindrical, Fig. 5 shows a conical, pin-shaped profile body 9.2, so that the diameter of the profile body tapers in the direction of the bore.
  • the pin-shaped profile body 9.3 for holding the edge protection element 8 is in turn cylindrical, wherein a partial area which extends into the bore is formed with a smaller diameter than the remaining area. Again, the forces acting from outside on the profile body 9.3 forces on the edge protection element 8 granted to a larger area.
  • the embodiment of FIG. 7 is distinguished from the embodiment of FIG. 6 by two changes.
  • the additional wear protection element 14.4 protrudes radially beyond the edge protection element 8 and thereby forms a collar for limiting the autogenous wear protection layer.
  • the wear protection layer 13 can thus extend over the entire radial peripheral surface of the edge protection element 8.
  • the further wear protection segment 15.4 is also housed in a recess of the end face 6, so that it is flush with the end face 6.
  • the embodiment according to FIG. 8 essentially corresponds to the exemplary embodiment according to FIG. 7 without the edge, whereby, however, the additional wear protection elements 14.5 are chamfered on their axially outer surface 14.51 to the further Verschdaletikettin or strips 15.5, resulting in a stepless transition.
  • the additional wear protection element 14.6 in FIG. 9 is chamfered on its radially outer surface 14.61 so that the grinding roller slightly tapers in diameter in its edge region.
  • the further wear protection segments or strips 15.1 to 15.6 can either be suitably replaced with the additional anti-wear elements L4.-Lbis 14.6- are connected and / or are separately, for example by means of screws 16, or fixed by welding to the end faces of the base body 3 (Fig. 10).
  • FIGS. 11 to 14 show different variants of how the edge protection elements can be fastened to the pin-shaped profile bodies 9.
  • the edge protection elements are denoted by the reference numeral 8
  • the additional wear protection elements by the reference numeral 14
  • the pin-shaped profile body by the reference numeral 9.
  • each edge protection element 8 is fastened with an associated pin-shaped profile body 9.
  • the pin-shaped profile body 9 are each arranged in the transition region of two edge protection elements 8, so that each edge protection element 8 is in communication with two profile bodies 9.
  • the edge protection elements 8 are designed to be longer in their length in the circumferential direction
  • the two exemplary embodiments according to FIGS. 11 and 12 can also be combined with one another, as shown in FIG.
  • the edge protection elements have different lengths in the circumferential direction, wherein the shorter elements according to the embodiment of Fig. 12 and the longer elements according to the embodiment of Fig. 13 are attached (Fig. 14).
  • the indicated mounting options are not to be considered as conclusive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un broyeur à cylindres destiné à désintégrer une matière friable, comportant deux cylindres de broyage (1, 2), entraînés en sens opposés, qui comportent chacun un corps de base (3) possédant une face périphérique (4) et deux faces d'extrémité (5, 6), la face périphérique (4) étant pourvue d'un blindage de surface (7) approprié pour former une couche anti-usure autogène et une bague anti-usure fermée constituée d'éléments de protection de bord (8) étant disposée à chaque fois dans la zone de transition entre la face périphérique (4) et les faces d'extrémité (5, 6), les éléments de protection de bord (8) comportent des éléments profilés (9) en forme de tige au moyen desquels les éléments de protection de bord sont montés dans des perçages radiaux (10) du corps de base (3). Les éléments profilés (9) en forme de tige des éléments de protection de bord (8) font en outre saillie des éléments de protection de bord (8) du côté opposé aux perçages (10) où ils coopèrent avec le blindage de surface (7) pour former une couche anti-usure autogène.
PCT/EP2014/002672 2013-10-01 2014-10-01 Broyeur à cylindres pour la désintégration d'une matière friable WO2015049050A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2014331412A AU2014331412B2 (en) 2013-10-01 2014-10-01 Roller mill for the comminution of brittle material
ZA2016/01901A ZA201601901B (en) 2013-10-01 2016-03-17 Roller mill for the comminution of brittle material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013110893.8 2013-10-01
DE102013110893.8A DE102013110893B4 (de) 2013-10-01 2013-10-01 Walzenmühle zur Zerkleinerung von sprödem Material

Publications (1)

Publication Number Publication Date
WO2015049050A1 true WO2015049050A1 (fr) 2015-04-09

Family

ID=51730486

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/002672 WO2015049050A1 (fr) 2013-10-01 2014-10-01 Broyeur à cylindres pour la désintégration d'une matière friable

Country Status (6)

Country Link
AU (1) AU2014331412B2 (fr)
CL (1) CL2016000715A1 (fr)
DE (1) DE102013110893B4 (fr)
PE (1) PE20160413A1 (fr)
WO (1) WO2015049050A1 (fr)
ZA (1) ZA201601901B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238709A (zh) * 2016-07-26 2016-12-21 镇江富华轧辊有限公司 一种磨辊的制造/再制造耐磨材料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10354679A1 (de) * 2003-11-22 2005-06-30 Khd Humboldt Wedag Ag Mahlwalze für die Druckzerkleinerung körnigen Gutes
EP1502650B1 (fr) * 2003-07-31 2009-09-09 Polysius AG Rouleau broyeur
WO2012031324A1 (fr) * 2010-09-07 2012-03-15 Hofmann Engineering Pty Ltd Ensemble de protection de bord pour rouleau de pression

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59407047D1 (de) * 1993-07-20 1998-11-12 Koeppern & Co Kg Maschf Walzenpressen, insbesondere zum zerkleinern von stark abrasiven stoffen
DE19638237A1 (de) * 1996-09-19 1998-03-26 Deutz Ag Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes
DE102007032261A1 (de) * 2007-07-11 2009-01-15 Khd Humboldt Wedag Gmbh Walze für eine Hochdruckwalzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1502650B1 (fr) * 2003-07-31 2009-09-09 Polysius AG Rouleau broyeur
DE10354679A1 (de) * 2003-11-22 2005-06-30 Khd Humboldt Wedag Ag Mahlwalze für die Druckzerkleinerung körnigen Gutes
WO2012031324A1 (fr) * 2010-09-07 2012-03-15 Hofmann Engineering Pty Ltd Ensemble de protection de bord pour rouleau de pression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238709A (zh) * 2016-07-26 2016-12-21 镇江富华轧辊有限公司 一种磨辊的制造/再制造耐磨材料及其制备方法

Also Published As

Publication number Publication date
DE102013110893A1 (de) 2015-04-02
ZA201601901B (en) 2017-04-26
PE20160413A1 (es) 2016-05-11
AU2014331412B2 (en) 2018-01-25
CL2016000715A1 (es) 2016-09-16
DE102013110893B4 (de) 2017-04-06
AU2014331412A1 (en) 2016-04-21

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