WO2005084809A1 - Galets de broyage pour broyeur vertical - Google Patents
Galets de broyage pour broyeur vertical Download PDFInfo
- Publication number
- WO2005084809A1 WO2005084809A1 PCT/BE2004/000179 BE2004000179W WO2005084809A1 WO 2005084809 A1 WO2005084809 A1 WO 2005084809A1 BE 2004000179 W BE2004000179 W BE 2004000179W WO 2005084809 A1 WO2005084809 A1 WO 2005084809A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inserts
- roller
- contiguous
- wear
- faces
- 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.)
- Ceased
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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/004—Shape or construction of rollers or balls
- B02C15/005—Rollers or balls of composite construction
-
- 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
- B02C4/02—Crushing or disintegrating by roller mills with two or more 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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
- B02C4/34—Adjusting, applying pressure to, or controlling the distance between, milling members in mills wherein a roller co-operates with a stationary member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/06—Casting in, on, or around objects which form part of the product for manufacturing or repairing tools
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/22—Nonparticulate element embedded or inlaid in substrate and visible
Definitions
- the present invention aims to bring improvements to the grinding rollers for grinders in general and in particular for so-called grinders with vertical axis.
- the so-called vertical axis shredders are used for example to grind coal or clinker. They essentially consist of a rotary track supporting rollers which are driven by the rotary movement of the track along the vertical axis. The material to be ground is introduced into a central feed channel and falls on the track, where it is crushed and ground between the track and the roller. The ground material is then removed to the periphery of the track.
- roller shapes such as frustoconical rollers or toric rollers.
- Document DE 44 00 797 A1 describes rollers of this shape where the wearing parts are mechanically sealed by a mechanical fixing means.
- Document JP 2001 129418 describes a mechanical crusher comprising wearing parts arranged on the outer surface of the rollers which allow easy replacement thereof when the wear of its grooves is observed. These wearing parts are inserted into an inverted T-shaped core so that they adhere completely to the entire surface of the projections.
- the techniques used in German and Japanese documents do not use the technology of molding projections.
- the techniques used in German and Japanese documents do not use the technology of molding by pouring a more ductile material around the inserts making it possible to fix them in the remaining mass of the roller.
- Specific forms of grinders with vertical axis are shown in Figures 1 and 2. The subject is deepened in patent EP 0 476 496 Bl.
- This patent describes, among other things, a particular configuration of the grinding rollers, the characteristic of which is that the wear surface consists essentially of peripheral inserts made of very hard material with high resistance to wear (such as high-grade cast irons). chromium content), mechanically sealed in a matrix of ductile material.
- the inserts are obtained beforehand with a projecting rib on at least one longitudinal fZlanc and are then placed against each other in a mold, leaving between them a space defined by the thickness of their ribs.
- the roller is obtained in the form of a bi-metallic part by a molding technique by pouring a more ductile material which ensures a mechanical connection of the inserts in the remaining mass of the roller formed by the ductile material.
- peripheral inserts are therefore spaced from each other by ribs, the ductile material, during the manufacture of the roller by molding, can infiltrate between the inserts to the peripheral wear surface proper thus ensuring that the inserts are properly fixed in the room.
- This arrangement leads to a succession of hard inserts essentially separated by more ductile material spacing
- the space created between the inserts during their positioning in the mold should be progressively increasing from the periphery to the center so that that the molten metal does not freeze on contact with the cold inserts, thus preventing this space from being completely filled with the ductile metal.
- this configuration evolves by creating an increasingly wide ductile space at the periphery, the result of the inclination of the sides of this space. This however causes the harmful effect of reducing the hard peripheral surface of the inserts and, consequently, of promoting wear on the part.
- the object of the present invention is to provide a new form of inserts so as to avoid the drawbacks of the solutions of the prior art.
- the present invention discloses a composite grinding roller, produced by casting, comprising peripheral inserts made of material with high wear resistance and high hardness, sealed during said casting in a ductile matrix.
- said roller comprising first zones subjected to high wear stress as well as second zones subjected to low wear stress characterized in that in said first zone said roller has on its peripheral face inserts comprising a contiguous part and in said second zone, a non-contiguous part, the spacing in said non-contiguous part being filled by said ductile material of the cast matrix allowing sufficient mechanical attachment of the inserts.
- the contiguous faces coming into contact with their neighbors in successive inserts have a contact line corresponding to the radii of the circle formed by the roller.
- the ratio of the length of the contiguous faces to the length of the areas where the faces are not contiguous is equal to or greater than
- the invention specifies that the ratio between the length of the areas where the faces are contiguous to the length of the areas where the faces are non-contiguous is between 0.2 and 20.
- the wear resistance of the inserts, in particular in the contiguous parts is accentuated by a ceramic reinforcement selected from the group of oxides, carbides, nitrides or borides.
- said insert comprises at least one undercut allowing its sealing in said die cast in ductile material.
- Figure 1 schematically shows a so-called vertical axis mill.
- Figure 2 shows the grinding mechanism taking place between the track and the roller 1 with areas with greater wear 2 and 4 and with lower wear 3. We can also see the wear that can occur on the track.
- Figure 3 shows schematically in perspective a roller according to the prior art for which there is shown a number of spaced inserts extending longitudinally over the total length of the generator of the roller.
- Figure 4 shows the insert according to the state of the art revealing the spacing ribs 20 which have not been shown in Figure 3.
- Figure 5 shows an example of profiles wear observed on two types of rollers a and b according to the state of the art.
- Figure 6 illustrates the formation of wear grooves 16 in the inserts according to the prior art;
- Figure 7 illustrates the flaking of the edge of the ceramic reinforcements 17 and 18 of the inserts resulting from the formation of grooves illustrated in Figure 6.
- Figure 8 is a view of a set of inserts juxtaposed according to the invention.
- Figure 9 is a sectional view of an insert in the area 14, according to ' Figure 8.
- Figure 10 is a plan view of the partially contiguous arrangement of three inserts according to the invention.
- Figure 11 is a sectional view of an insert according to Figure 10.
- Figures 10 and 11 correspond respectively to Figures 8 and 9 for the case where the inserts contain a ceramic reinforcement (illustrated by dotted).
- Identical reference marks are used in the different figures for identical or essentially similar constituent elements, both for the description of the state of the art and for the embodiment according to the invention.
- Figures 3 and 4 which illustrate embodiments according to the state of the art, there is indicated by the general reference 1 a roller provided with inserts 5 which, due to the presence of ribs 20 during of the formation of the roller by molding, are longitudinally in a spaced position, the ribs 20 serving as spacers.
- the wear profile 4 as shown in Figure 5, for example varying between one or two areas with high wear 2 and 4 and a zone with less wear 3.
- a porous ceramic core oxides, carbides, nitrides, borides or others as described for example in the patent EP 0 930 948 B1 or also by creating a ceramic structure in situ.
- Figure 6 shows the formation of grooves 16 according to the old design, with inserts 5 without ceramic reinforcement.
- Figure 7 shows what happens in service when a ceramic reinforcement 18 has been incorporated into the inserts 5. It can be seen that after the formation of grooves 16 in the ductile metal, the edges 17 of the ceramic mass infiltrated 18 break, releasing very abrasive material and accelerating the formation of the irregular wear profile.
- the inserts are designed according to the invention so as to create a wear resistance differential between the parts with high wear 2 and 4 and the parts with less wear 3.
- this effect is obtained by the use of inserts 5 (see FIGS. 8 et seq.) Which are contiguous in the part with high wear stress 2 above and which retain spacings 12 in the part with less wear resistance 3 which are filled with a cast ductile metal 19.
- the faces 6 and 7 coming into contact with their neighbors in successive inserts are drawn on the center of the roller, that is to say in section, their contact line corresponds to the radii of the circle formed by the roller.
- the relative position of the area (s) with high wear compared to the position of one of the areas with low wear will depend on the type of grinder and the type of roller and, more particularly on its geometric shape.
- the ratio of the width of the area (s) heavily used to wear to the width of the area (s) weakly used to wear is generally equal to or greater than unity. Ratios between the respective widths of these same zones from 1 to 1.5 make it possible both to have an adequate grinding surface and to suitably secure the inserts in the matrix.
- the fact that the inner part 3 of the insert retains the possibility of formation of grooves is in itself beneficial in the sense that it thus ensures better drive of the roller by reducing the sliding effect or skating on the material to be ground.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007501070A JP4746029B2 (ja) | 2004-03-03 | 2004-12-20 | 竪型粉砕機のための粉砕ローラ |
| EP04802155A EP1725336A1 (fr) | 2004-03-03 | 2004-12-20 | Galets de broyage pour broyeur vertical |
| US10/591,030 US7438247B2 (en) | 2004-03-03 | 2004-12-20 | Grinding rollers for a vertical crusher |
| BRPI0418584-6A BRPI0418584A (pt) | 2004-03-03 | 2004-12-20 | rolo de moagem composto |
| CA002557664A CA2557664A1 (fr) | 2004-03-03 | 2004-12-20 | Galets de broyage pour broyeur vertical |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04447053A EP1570905A1 (fr) | 2004-03-03 | 2004-03-03 | Galets de broyage pour broyeur vertical |
| EP04447053.2 | 2004-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005084809A1 true WO2005084809A1 (fr) | 2005-09-15 |
Family
ID=34746238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BE2004/000179 Ceased WO2005084809A1 (fr) | 2004-03-03 | 2004-12-20 | Galets de broyage pour broyeur vertical |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7438247B2 (fr) |
| EP (2) | EP1570905A1 (fr) |
| JP (1) | JP4746029B2 (fr) |
| KR (1) | KR20060125886A (fr) |
| CN (1) | CN100425348C (fr) |
| BR (1) | BRPI0418584A (fr) |
| CA (1) | CA2557664A1 (fr) |
| MA (1) | MA28371A1 (fr) |
| RU (1) | RU2357801C2 (fr) |
| WO (1) | WO2005084809A1 (fr) |
| ZA (1) | ZA200606924B (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4450164A1 (fr) | 2023-04-19 | 2024-10-23 | Magotteaux International S.A. | Galet de broyage composite monobloc |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7641135B1 (en) * | 2006-02-28 | 2010-01-05 | Emily Lo | Combinative cutting wheel of a rotary cutter of paper shredder |
| JP2009183877A (ja) * | 2008-02-06 | 2009-08-20 | Ube Techno Enji Kk | 竪型粉砕機の粉砕ローラ |
| JP2012035157A (ja) * | 2010-08-04 | 2012-02-23 | Ube Techno Enji Kk | 粉砕ローラ |
| CN102773129A (zh) * | 2011-05-10 | 2012-11-14 | 北京能为科技发展有限公司 | 耐磨分体辊套 |
| DE102011104854B4 (de) * | 2011-06-21 | 2015-06-11 | Khd Humboldt Wedag Gmbh | Mahlwalze mit in die Oberfläche eingesetzten Hartkörpern |
| DE102012102199A1 (de) * | 2012-03-15 | 2013-09-19 | Maschinenfabrik Köppern GmbH & Co KG | Presswalze |
| JP5791556B2 (ja) * | 2012-03-26 | 2015-10-07 | 三菱日立パワーシステムズ株式会社 | 竪型粉砕装置 |
| WO2015015507A1 (fr) * | 2013-07-30 | 2015-02-05 | Balaji Industrial Products Ltd., | Cylindre de broyage pour broyeur à cylindres vertical et son procédé de fabrication |
| WO2015123772A1 (fr) * | 2014-02-19 | 2015-08-27 | Cast Steel Products Lp, By Its General Partner Cast Steel Products Gp Ltd. | Rouleau doté de renforcements de bord remplaçables |
| WO2015123770A1 (fr) * | 2014-02-19 | 2015-08-27 | Cast Steel Products Lp, By Its General Partner Cast Steel Products Gp Ltd. | Rouleau segmenté et son procédé de reconditionnement |
| BE1021839B1 (fr) * | 2014-04-23 | 2016-01-21 | Magotteaux International S.A. | Galet de broyage comportant des inserts a massivite elevee |
| 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 |
| EP3308861A1 (fr) * | 2016-10-12 | 2018-04-18 | Magotteaux International S.A. | Galet de broyage |
| CN107138712B (zh) * | 2017-05-31 | 2023-07-14 | 南通高欣耐磨科技股份有限公司 | 一种zgm型可修复金属陶瓷复合磨辊及制造方法 |
| BE1027444B1 (fr) | 2020-02-11 | 2021-02-10 | Magotteaux Int | Piece d'usure composite |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000392A (en) * | 1989-05-10 | 1991-03-19 | Krupp Polysius Ag | Grinding roller |
| US5328776A (en) * | 1993-01-04 | 1994-07-12 | Michail Garber | Abrasion and impact resistant composite castings and wear resistant surface provided therewith |
| DE4400797A1 (de) * | 1994-01-13 | 1995-07-20 | Krupp Polysius Ag | Mahlwerkzeug für Walzenmühlen |
| JP2001129418A (ja) * | 1999-11-01 | 2001-05-15 | Nisshin Flour Milling Co Ltd | 機械式粉砕機 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6198548U (fr) * | 1984-12-04 | 1986-06-24 | ||
| BE1004573A4 (fr) * | 1990-09-20 | 1992-12-15 | Magotteaux Int | Procede de fabrication d'une piece de fonderie bimetallique et piece d'usure realisee par ce procede. |
| DE4032615C2 (de) * | 1990-10-15 | 1994-12-01 | Kloeckner Humboldt Deutz Ag | Verfahren und Vorrichtung zum Aufbringen einer verschleißfesten Panzerung auf die Walzenstirnseiten von Walzenpressen |
| DE4132474A1 (de) * | 1991-05-28 | 1992-12-03 | Kloeckner Humboldt Deutz Ag | Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen |
| JPH0647299A (ja) * | 1992-07-31 | 1994-02-22 | Kobe Steel Ltd | 衝撃式破砕機 |
| US5755033A (en) * | 1993-07-20 | 1998-05-26 | Maschinenfabrik Koppern Gmbh & Co. Kg | Method of making a crushing roll |
| JP3155149B2 (ja) * | 1994-05-31 | 2001-04-09 | 株式会社神戸製鋼所 | ジョークラッシャ用の固定ジョープレート |
| HU224208B1 (hu) | 1996-10-01 | 2005-06-28 | Magotteaux International S.A. | Összetett anyagú kopásálló alkatrész |
| LU90006B1 (fr) * | 1997-01-15 | 1997-08-21 | Magotteaux Int | Insert pour pièces d'usure composites procédé de fabrication d'une pièce d'usure à l'aide de tels inserts et pièce d'usure ainsi réalisée |
| RU2207907C2 (ru) * | 2001-08-20 | 2003-07-10 | Акционерная компания "АЛРОСА" (Закрытое акционерное общество) | Валковый пресс для измельчения минерального сырья |
| CN2577951Y (zh) * | 2002-09-25 | 2003-10-08 | 张店钢铁总厂 | 组合式破碎辊 |
-
2004
- 2004-03-03 EP EP04447053A patent/EP1570905A1/fr not_active Withdrawn
- 2004-12-20 US US10/591,030 patent/US7438247B2/en not_active Expired - Lifetime
- 2004-12-20 BR BRPI0418584-6A patent/BRPI0418584A/pt active IP Right Grant
- 2004-12-20 JP JP2007501070A patent/JP4746029B2/ja not_active Expired - Lifetime
- 2004-12-20 KR KR1020067017877A patent/KR20060125886A/ko not_active Ceased
- 2004-12-20 EP EP04802155A patent/EP1725336A1/fr not_active Withdrawn
- 2004-12-20 RU RU2006132319/03A patent/RU2357801C2/ru active
- 2004-12-20 CA CA002557664A patent/CA2557664A1/fr not_active Abandoned
- 2004-12-20 WO PCT/BE2004/000179 patent/WO2005084809A1/fr not_active Ceased
- 2004-12-20 CN CNB2004800422544A patent/CN100425348C/zh not_active Expired - Lifetime
-
2006
- 2006-08-18 ZA ZA200606924A patent/ZA200606924B/en unknown
- 2006-08-29 MA MA29293A patent/MA28371A1/fr unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000392A (en) * | 1989-05-10 | 1991-03-19 | Krupp Polysius Ag | Grinding roller |
| US5328776A (en) * | 1993-01-04 | 1994-07-12 | Michail Garber | Abrasion and impact resistant composite castings and wear resistant surface provided therewith |
| DE4400797A1 (de) * | 1994-01-13 | 1995-07-20 | Krupp Polysius Ag | Mahlwerkzeug für Walzenmühlen |
| JP2001129418A (ja) * | 1999-11-01 | 2001-05-15 | Nisshin Flour Milling Co Ltd | 機械式粉砕機 |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 22 9 March 2001 (2001-03-09) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4450164A1 (fr) | 2023-04-19 | 2024-10-23 | Magotteaux International S.A. | Galet de broyage composite monobloc |
| WO2024217935A1 (fr) | 2023-04-19 | 2024-10-24 | Magotteaux International S.A. | Galet de broyage composite monobloc |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1925920A (zh) | 2007-03-07 |
| RU2357801C2 (ru) | 2009-06-10 |
| CA2557664A1 (fr) | 2005-09-15 |
| JP4746029B2 (ja) | 2011-08-10 |
| US20070184235A1 (en) | 2007-08-09 |
| RU2006132319A (ru) | 2008-04-10 |
| BRPI0418584A (pt) | 2007-06-19 |
| JP2007526118A (ja) | 2007-09-13 |
| KR20060125886A (ko) | 2006-12-06 |
| EP1570905A1 (fr) | 2005-09-07 |
| MA28371A1 (fr) | 2006-12-01 |
| US7438247B2 (en) | 2008-10-21 |
| CN100425348C (zh) | 2008-10-15 |
| ZA200606924B (en) | 2007-11-28 |
| EP1725336A1 (fr) | 2006-11-29 |
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