EP2059342A1 - Mahlwalze sowie verfahren zur wiederaufarbeitung - Google Patents
Mahlwalze sowie verfahren zur wiederaufarbeitungInfo
- Publication number
- EP2059342A1 EP2059342A1 EP08735484A EP08735484A EP2059342A1 EP 2059342 A1 EP2059342 A1 EP 2059342A1 EP 08735484 A EP08735484 A EP 08735484A EP 08735484 A EP08735484 A EP 08735484A EP 2059342 A1 EP2059342 A1 EP 2059342A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- profile
- width
- worn
- holes
- 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
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
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49544—Roller making
- Y10T29/49545—Repairing or servicing
Definitions
- the invention relates to a grinding roller of a high-pressure fine-bed roller mill according to the preamble of claim 1 and to a method for reprocessing a used grinding roller of this type.
- Grinding rolls of the assumed type are known, for example, from EP 0 516 952 B1. They contain a plurality of wear-resistant profile body, which are incorporated with part of their length in holes of the roller body and protrude with the remaining part of its length over the surface of the roller body. in the
- Both the protruding profile body and the surface of the roller body during the operating time are subject to an inevitable wear, which makes a reprocessing of the grinding roller required if the roll body is to be used further.
- a grinding roller is known in which the hardness of the roll surface forming material of the roll body is greater than 56 HRc (hardness according to Rockwell).
- This grinding roller is used in the crushing operation until a substantial part of all profile body has worn out completely and / or has fallen out of the roll body.
- the reprocessing of the used grinding roller is then carried out in such a way that the roll surface is brought by completely turning the profile body and the original holes back into a cylindrical shape, after which new holes are produced and new profile body used in these holes.
- an extremely hard base material for the surface of the roller body is indeed achieved in this known solution, that this surface wears out only about the same extent as the above profile body.
- the complete turning off the provided with bores surface of the roll body due to the high hardness of the surface material a considerable effort.
- High-pressure fine bed roller mill comprising a plurality of profiled bodies, which are incorporated with part of their length in holes of the roller body and protrude with the remaining part of its length over the surface of the roller body, wherein the profile body have a greater hardness than the surface of the roller body and the projecting part of the profile body as well as the surface of the
- Roll body is at least partially worn.
- Refurbishment is after removal of the worn profile body, the worn surface of the roll body at least in a partial region of the
- Width of the roll body turned off to a diameter greater than the diameter of the bottom of the existing holes, after which a) the existing holes are deepened to a sufficient depth for receiving new profile body depth, b) and / or new holes corresponding to a new hole pattern are produced, c) and / or in the now shorter holes profile body shorter length can be used.
- the invention is based on the object, a grinding roller according to the preamble of claim 1 in such a way that at a cost-saving production reaches a long service life of the roller and a cost-effective
- roller according to the invention having bores of different depth and profile body of different lengths in different stressed portions of the width of the roller body, ie in particular by the
- Holes and profile body in the highly stressed central portion of the width of the roll body have a greater depth or length than in the less stressed edge regions of the width of the roll body, the time and material costs in the production is more concentrated on the particularly highly stressed in later operation sections , As a result, with a cost-saving production a significant extension of the life of the roller, i. the period of time to a necessary reprocessing reached.
- Partial areas of the width of the roll body is turned off and profiled bodies are re-used after deepening of the original holes. In this way, a very cost-effective reprocessing is achieved.
- This reprocessing preferably takes place in that subregion in which
- FIG. 1 shows a schematic longitudinal partial section through a first embodiment of a roller according to the invention in new condition
- Fig. 2 is a schematic longitudinal partial section, which in the left half of the picture reached after a certain period of operation wear state and in the right
- Half shows the state of the roller of FIG. 1 after reprocessing
- FIG. 3 shows a longitudinal partial section through a second embodiment of a roller according to the invention when new
- FIG. 4 shows a schematic longitudinal partial section showing in the left half of the picture the wear state achieved after a certain operating time and in the right half the state of the roller according to FIG. 3 after the reprocessing.
- the roller body 1 of the grinding roller of a high-pressure good bed roller mill shown schematically in new condition in FIG. 1 contains a multiplicity of profile bodies 2, 3, 4 which are embedded with part of their length (eg 2a) in bores 12, 13, 14 of the roller body 1 and with the remaining part of its length (eg
- the bores 12, 13, 14 have different depths in individual subregions of the width of the roller body. Accordingly, the profile body 2, 3, 4 are formed in these sections with different lengths.
- the profiled bodies 2, 3, 4 and the surface 1a of the roller body 1 are subject to varying degrees of stress in the operation of the high-pressure good bed roller mill.
- the middle part of the width of the roll body ie in the partial area in which the long profile body 4 and the long holes 14 are provided
- Fig. 2 shows in the left half of the state of the grinding roller, which has adjusted after a certain period of operation by the on the surface of the roller body Y and the profiled bodies 2 ', 3', 4 'occurred wear.
- the length of the profile body has consistently decreased slightly.
- the surface l'a is in
- Edge region i.e., in the zone of the profile body T
- the central region of the roll body i.e., in the zone of the profile body 4 '
- the profile body 4 'in the central region of the roller body for a further wear sufficiently anchored in the long holes 14.
- a reprocessing requires the roller in the outer edge regions in which the profile body 2 'only in very short holes 12 are supported.
- Fig. 2 shows in the right half the state of the grinding roller after the reprocessing. In this reprocessing is the worn
- Part of the roll body act, or it can be used new profile body.
- the bores 12, 13 in the edge regions of the roller body 1 in the new condition of the roller are designed with increased depth.
- the work-up takes place in such a way that initially the profile body (T, 3 ') in the
- Edge areas is leveled by twisting. This results in a new surface l'b (see Fig. 4, right). Then, in the originally executed with increased length holes 12, 13 of the edge regions profile body
- the profile body 2 ", 3" used without the holes 12, 13 must be deepened for this purpose.
- the profile body 2 ", 3" have a length which is shorter than the length of
- Profile body 2, 3 in the new condition of the roller can be either new profile body or worn profile body, which in the
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007018090A DE102007018090A1 (de) | 2007-04-17 | 2007-04-17 | Mahlwalze sowie Verfahren zur Wiederaufarbeitung |
| PCT/EP2008/053559 WO2008125445A1 (de) | 2007-04-17 | 2008-03-26 | Mahlwalze sowie verfahren zur wiederaufarbeitung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2059342A1 true EP2059342A1 (de) | 2009-05-20 |
| EP2059342B1 EP2059342B1 (de) | 2012-01-11 |
Family
ID=39493518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08735484A Active EP2059342B1 (de) | 2007-04-17 | 2008-03-26 | Mahlwalze sowie verfahren zur wiederaufarbeitung |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US7946518B2 (de) |
| EP (1) | EP2059342B1 (de) |
| CN (1) | CN101583428B (de) |
| AU (1) | AU2008238100B2 (de) |
| BR (1) | BRPI0805847B1 (de) |
| CA (1) | CA2665078C (de) |
| CL (1) | CL2008001026A1 (de) |
| DE (1) | DE102007018090A1 (de) |
| DK (1) | DK2059342T3 (de) |
| MX (1) | MX2009004234A (de) |
| PE (1) | PE20090010A1 (de) |
| RU (1) | RU2452576C2 (de) |
| WO (1) | WO2008125445A1 (de) |
| ZA (1) | ZA200901722B (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006028546A1 (de) * | 2006-06-21 | 2007-12-27 | Polysius Ag | Verfahren zur Wiederaufarbeitung einer gebrauchten Mahlwalze |
| DE102007012102A1 (de) * | 2007-03-13 | 2008-09-18 | Polysius Ag | Verfahren zur Wiederaufarbeitung einer gebrauchten Mahlwalze |
| GB2464968A (en) | 2008-10-31 | 2010-05-05 | Welding Alloys Ltd | Manufacture of composite rollers |
| DE102010010431B4 (de) | 2010-03-05 | 2012-04-05 | Thyssenkrupp Polysius Ag | Verfahren zur Wiederaufarbeitung der verschlissenen Oberfläche von Mahlwalzen einer Gutbettwalzenmühle |
| US20130023393A1 (en) * | 2010-04-16 | 2013-01-24 | Flsmidth A/S | Wear-resistant roller |
| JP5760385B2 (ja) * | 2010-10-28 | 2015-08-12 | 三菱マテリアル株式会社 | 多結晶シリコンの破砕装置及び多結晶シリコン破砕物の製造方法 |
| DE102011102386C5 (de) * | 2011-05-25 | 2015-03-19 | Thyssenkrupp Industrial Solutions Ag | Mahlwalze sowie eine Hochdruck-Walzenmühle |
| CN102600925B (zh) * | 2012-03-12 | 2014-07-30 | 成都利君实业股份有限公司 | 一种辊压机辊面 |
| CN102896013B (zh) * | 2012-09-26 | 2015-05-27 | 成都利君实业股份有限公司 | 一种辊压机及高压辊磨机自同步磨损辊子 |
| CN112371245A (zh) * | 2020-10-31 | 2021-02-19 | 中材天山(云浮)水泥有限公司 | 一种防止立磨辊皮开裂的方法 |
| CN113368959A (zh) * | 2021-06-11 | 2021-09-10 | 郑州机械研究所有限公司 | 一种不伤害母体的耐磨结构及其制备方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US412558A (en) * | 1889-10-08 | Surface for grinding and crushing | ||
| DE1284266B (de) * | 1964-08-22 | 1968-11-28 | Doerries Gmbh | Mahlwerkzeuge fuer Stiftmuehlen zum Zerkleinern, Zerfasern, Mahlen und/oder sonstigen Behandeln von Gut, insbesondere von Gut fuer die Papier-, Pappe- oder Kartonherstellung |
| SU1637876A1 (ru) * | 1989-01-09 | 1991-03-30 | Ростовское-На-Дону Специальное Конструкторское Бюро Продовольственного Машиностроения | Двухвальцова мельница |
| DE4132474A1 (de) | 1991-05-28 | 1992-12-03 | Kloeckner Humboldt Deutz Ag | Verschleissfeste mahlwalze fuer die verwendung in walzenmaschinen, insbesondere in hochdruckwalzenpressen |
| DE4321427A1 (de) * | 1992-07-09 | 1994-01-13 | Kloeckner Humboldt Deutz Ag | Verschleißfeste Walze für die Verwendung in Zweiwalzenmaschinen, insbesondere in Hochdruck-Walzenpressen |
| DE19618143A1 (de) | 1996-05-06 | 1997-11-13 | Krupp Polysius Ag | Mahlwalze sowie Betriebs- und Reparaturverfahren |
| DE19638237A1 (de) * | 1996-09-19 | 1998-03-26 | Deutz Ag | Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes |
| US5954282A (en) * | 1997-02-10 | 1999-09-21 | Britzke; Robert W. | Plate for reducing wear by a material flow |
| JP3707070B2 (ja) * | 1999-12-06 | 2005-10-19 | 株式会社栗本鐵工所 | 複合耐磨耗部材の充填率の設定方法及び複合耐磨耗部材 |
| CN1280016C (zh) * | 2003-07-01 | 2006-10-18 | 上海建设路桥机械设备有限公司 | 双辊破碎机的齿辊结构 |
| DE10335115A1 (de) * | 2003-07-31 | 2005-02-24 | Polysius Ag | Mahlwalze |
| SE0402417L (sv) * | 2004-10-07 | 2005-07-19 | Goesta Larssons Mek Verkst Ab | Rivvals med spår för rivverktyg |
| CN2805914Y (zh) * | 2005-07-29 | 2006-08-16 | 中信重型机械公司 | 一种新型辊压磨辊面 |
| DE102006028546A1 (de) * | 2006-06-21 | 2007-12-27 | Polysius Ag | Verfahren zur Wiederaufarbeitung einer gebrauchten Mahlwalze |
-
2007
- 2007-04-17 DE DE102007018090A patent/DE102007018090A1/de not_active Withdrawn
-
2008
- 2008-03-26 MX MX2009004234A patent/MX2009004234A/es active IP Right Grant
- 2008-03-26 AU AU2008238100A patent/AU2008238100B2/en active Active
- 2008-03-26 CN CN2008800011441A patent/CN101583428B/zh active Active
- 2008-03-26 WO PCT/EP2008/053559 patent/WO2008125445A1/de not_active Ceased
- 2008-03-26 CA CA2665078A patent/CA2665078C/en active Active
- 2008-03-26 RU RU2009142203/13A patent/RU2452576C2/ru active
- 2008-03-26 EP EP08735484A patent/EP2059342B1/de active Active
- 2008-03-26 US US12/515,295 patent/US7946518B2/en active Active
- 2008-03-26 DK DK08735484.1T patent/DK2059342T3/da active
- 2008-03-26 BR BRPI0805847-4A patent/BRPI0805847B1/pt active Search and Examination
- 2008-04-10 CL CL200801026A patent/CL2008001026A1/es unknown
- 2008-04-16 PE PE2008000656A patent/PE20090010A1/es active IP Right Grant
-
2009
- 2009-03-11 ZA ZA2009/01722A patent/ZA200901722B/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008125445A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DK2059342T3 (da) | 2012-05-14 |
| AU2008238100B2 (en) | 2011-10-27 |
| AU2008238100A1 (en) | 2008-10-23 |
| DE102007018090A1 (de) | 2008-10-23 |
| CL2008001026A1 (es) | 2008-10-24 |
| MX2009004234A (es) | 2009-05-25 |
| US20100059614A1 (en) | 2010-03-11 |
| BRPI0805847A2 (pt) | 2011-08-30 |
| ZA200901722B (en) | 2010-02-24 |
| BRPI0805847B1 (pt) | 2019-09-24 |
| WO2008125445A1 (de) | 2008-10-23 |
| EP2059342B1 (de) | 2012-01-11 |
| CA2665078A1 (en) | 2008-10-23 |
| CN101583428A (zh) | 2009-11-18 |
| RU2009142203A (ru) | 2011-05-27 |
| CN101583428B (zh) | 2012-10-24 |
| BRPI0805847A8 (pt) | 2015-04-28 |
| RU2452576C2 (ru) | 2012-06-10 |
| US7946518B2 (en) | 2011-05-24 |
| PE20090010A1 (es) | 2009-03-22 |
| CA2665078C (en) | 2014-04-29 |
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