EP2125228A1 - Rollenmühle - Google Patents
RollenmühleInfo
- Publication number
- EP2125228A1 EP2125228A1 EP08717096A EP08717096A EP2125228A1 EP 2125228 A1 EP2125228 A1 EP 2125228A1 EP 08717096 A EP08717096 A EP 08717096A EP 08717096 A EP08717096 A EP 08717096A EP 2125228 A1 EP2125228 A1 EP 2125228A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- grinding
- mill according
- axis
- roller mill
- 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
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000003801 milling Methods 0.000 abstract 9
- 239000000463 material Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed
Definitions
- roller or roller mills also referred to as spring force or external power mills
- spring force or external power mills can be used, for example, for comminuting cement raw materials, cement clinker, coal, ore materials and the like.
- a mill housing provided within a mill housing a rotatably mounted around the mill axis Mahlring or Mahlteller with trained thereon grinding path and a plurality of distributed over the circumference of the grinding path and rolling on this grinding path grinding rollers or grinding rollers.
- the grinding material which is generally supplied centrally to the grinding table or grinding ring, is comminuted on the grinding track between the grinding ring and the grinding rollers, whereby pressing devices ensure that the grinding material in this
- Roll axis to be mounted on a corresponding rocker arm over which it is pressed mechanically or hydropneumatically by springs elastically against the Mahlgutbett formed on the grinding path.
- the rocker arms are generally located outside of the mill housing and have a rotational axis perpendicular to the roller axis.
- the grinding force is introduced by a pressure ring, which is under the action of a prestressed compression spring system and presses the grinding rollers against the grinding path or the Mahlgutbett located thereon.
- a roller mill with a rocker arm for rotatably supporting the grinding rollers which has a tilting axis, the is arranged parallel to the grinding roller axis.
- these mills have the disadvantage that they can not realize the high forces required for large mills with high throughputs for efficient grinding and that the forces can not be changed easily for different operating conditions.
- the invention is therefore based on the object to further develop this type of roller mill, so that high forces for efficient grinding can be realized.
- roller mill according to the invention consists essentially of a
- Mill housing a grinding path rotatably mounted within a mill housing about a mill axis and at least one grinding roller which is rotatable about a Mahlrollenachse and is in Abrolleingriff with the grinding path.
- a rocker arm for rotatably supporting the grinding roller is provided, which has a tilting axis, which is arranged parallel to the Mahlrollenachse and which is mounted outside of the mill housing.
- at least one standing with the rocker arm in operative contact hydropneumatic spring system for adjusting the contact pressure of the grinding roller is provided.
- a hydropneumatic spring system can be used to produce substantially larger forces than the previously used mechanical spring systems, which enable efficient grinding, in particular in roller mills with high throughputs.
- the forces of the Anpresssystems and the storage of the rocker arm were derived through the mill housing, resulting in higher housing costs and vibration problems of the
- Roller mill can lead when the forces are increased.
- the hydropneumatic suspension system may, for example, have a pull cylinder with a storage system or a pressure cylinder with a storage system.
- the hydropneumatic spring system engages below the Mahlrollenachse on the rocker arm.
- the grinding roller is supported at one end of the rocker arm, while the
- Pressing system comes in operative contact with the rocker arm at the other end and the rocker arm is mounted in a central region.
- Rocking lever in the direction of rotation of the grinding path are arranged in front of or behind Mahlrollenachse. It is also conceivable, the tilting axis of the rocker arm for
- Fig. Ia and Ib a schematic side view and top view of a
- Fig. 2a and 2b is a schematic side view and plan view of a
- 3a and 3b is a schematic side view and plan view of a roller mill according to a third embodiment
- 4a and 4b is a schematic side view and plan view of a
- 5a and 5b is a schematic side view and plan view of a roller mill according to a fifth embodiment
- 6a and 6b is a schematic side view and plan view of a
- Fig. 7a and 7b is a schematic side view and plan view of a
- FIG. 8 is a schematic plan view of a roller mill according to an eighth embodiment
- Fig. 9 is a schematic plan view of a roller mill according to a ninth embodiment.
- Fig. 10 is a schematic representation of the rocker arm geometry.
- the roller mill shown in Fig. Ia and Ib essentially consists of a mill housing 1, a grinding track 3 rotatably mounted within the mill housing about a mill axis 2 and at least one grinding roller 4 which is rotatable about a Mahlrollenachse 5 and is in Abrolleingriff with the grinding path 3 , Furthermore, at least one rocking lever 6 for rotatably supporting the grinding roller
- rocker arm is a Anpresssystem for adjusting the contact pressure of the grinding roller 4 in operative contact.
- This pressure system is formed by a hydropneumatic spring system 8 and the rocker arm 6 is at a distance mounted to the mill housing 1 such that the forces resulting from the Anpresssystem be derived directly or via pylons 9, 10, in the mill foundation 11.
- a plurality of grinding rollers for example two, four or six grinding rollers, are provided in the roller mill.
- Each of the grinding rollers would then be equipped with its own rocker arm and associated hydropneumatic spring system 8. It would also be conceivable within the scope of the invention that, for example, two rollers are mounted on a rocker arm.
- the tilting axis 7 is provided at one end of the rocker arm 6, while the hydropneumatic spring system 8, which has a pull cylinder with storage system, engages the other end of the rocker arm 6.
- the roller is held in a central region of the rocker arm 6.
- the Mahlrollenachse 5 is passed through the mill housing 1 to the outside, with a suitable seal is provided.
- the hydropneumatic spring system 8 can alternatively but at least expediently engage the oscillating lever 6, which is arranged closer to the grinding roller 4.
- the rocker arm mounting is formed by a first and a second spaced bearings 12a, 12b.
- the bearings can optionally be designed as a rolling bearing and / or as a sliding bearing.
- the bearing of the grinding roller 4 can take place via suitable rolling or plain bearings on the non-co-rotating Mahlrollenachse 5. But it is also conceivable that the grinding roller rotatably supported on the Mahlrollenachse 5 and the Mahlrollenachse 5 is rotatably mounted on the rocker arm 6. Other embodiments will be explained with reference to the further figures, wherein the same reference numerals are used for the same components.
- roller mill according to the embodiment of FIGS. 2a and 2b differs from the first embodiment essentially only in that the hydropneumatic spring system 8 engages below the Mahlrollenachse 5 on the rocker arm 6. Again, the hydropneumatic suspension system is designed as a pull cylinder. As a result, a direct power line is achieved, since only a small lever for grinding roller is present.
- the grinding roller 4 is supported at one end of the rocking lever 6, while the hydropneumatic spring system 8 comes into operative contact with the rocker arm at the other end and the rocking lever 6 is mounted in a central region.
- the hydropneumatic spring system 8 is designed as a pressure cylinder with a storage system. Printing cylinders are cheaper due to the simpler design than pull cylinder.
- Tilting axis 7, Mahlrollenachse 5 and attack point of the hydropneumatic spring system 8 relate.
- the tilting axis 7 of the oscillating lever is arranged in the direction of rotation 13 in front of the grinding roller axis 5.
- the tilting axis 7 and the grinding roller axis 5 are aligned parallel to one another
- the tilting axis 7 in the exemplary embodiment according to FIG. 8 is set against the grinding roller axis 5 (slightly). In this way, the kinematics of the grinding roller 4 can be improved.
- Fig. 10 the rocker geometry is shown schematically. By changing the leverage ratios and the different distances, different power ratios can be realized.
- Federsystems 8 a suitable range of 1: 0.8 to 1: 2, preferably from 1: 0.9 to 1: 1.2 determined.
- Mill foundation 11 can be derived easily.
- the rocker arm 6 allows a parallel movement of the grinding roller 4 to the grinding path 3 and therefore does not lead to changed geometry ratios in a wear of the grinding rollers, also with this storage and selection of suitable leverage a force application is possible, which is less than or equal to the force generated at the grinding roller.
- the forces on the two bearings 12a, 12b may even be smaller than the forces on the grinding roller.
- this type of Mahlrollenlagerung allows the resulting from the grinding tangential force increases the vertical force on the grinding roller.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007009723A DE102007009723A1 (de) | 2007-02-28 | 2007-02-28 | Rollenmühle |
PCT/EP2008/052262 WO2008104521A1 (de) | 2007-02-28 | 2008-02-25 | Rollenmühle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2125228A1 true EP2125228A1 (de) | 2009-12-02 |
EP2125228B1 EP2125228B1 (de) | 2012-06-20 |
Family
ID=39473939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08717096A Active EP2125228B1 (de) | 2007-02-28 | 2008-02-25 | Rollenmühle |
Country Status (7)
Country | Link |
---|---|
US (1) | US8038084B2 (de) |
EP (1) | EP2125228B1 (de) |
JP (1) | JP5265579B2 (de) |
CN (1) | CN101588870B (de) |
DE (1) | DE102007009723A1 (de) |
DK (1) | DK2125228T3 (de) |
WO (1) | WO2008104521A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008039541B4 (de) * | 2008-08-25 | 2010-05-12 | Polysius Ag | Rollenmühle |
DE102012106554A1 (de) * | 2012-07-19 | 2014-05-15 | Thyssenkrupp Resource Technologies Gmbh | Verfahren und Anlage zur Zerkleinerung von Mahlgut mit einer Rollenmühle |
DE102013110981A1 (de) * | 2013-10-02 | 2015-04-02 | Thyssenkrupp Industrial Solutions Ag | Verfahren zum Betreiben einer Anlage mit wenigstens einem Aggregat, das eine rotierende Oberfläche aufweist |
CN106176234B (zh) * | 2016-07-11 | 2019-05-31 | 浙江东日药业有限公司 | 一种药剂科西药研磨器 |
WO2020200455A1 (de) * | 2019-04-04 | 2020-10-08 | Loesche Gmbh | Hebelsystem zur kraftübertragung |
KR102122923B1 (ko) * | 2019-05-01 | 2020-06-26 | 오준태 | 고순도 치아용 치공구 세라믹 분말제조장치 |
EP3851195A1 (de) | 2020-01-14 | 2021-07-21 | Gebr. Pfeiffer SE | Wälzmühle mit geschränkten mahlwalzen |
CN111437934A (zh) * | 2020-05-07 | 2020-07-24 | 张旭 | 一种小麦碾压破碎设备 |
CN112275413A (zh) * | 2020-10-11 | 2021-01-29 | 绿之韵生物工程集团有限公司 | 一种冰磨撞击式灵芝孢子粉破壁装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1648176A (en) * | 1927-11-08 | Dry-pan grinding apparatus | ||
DE509212C (de) | 1930-10-06 | Ernst Curt Loesche | Walzenlagerung fuer Feberrollenmuehlen | |
GB943450A (en) * | 1961-01-20 | 1963-12-04 | Ernst Guenter Loesche | Ring mill with hydro-pneumatic springing |
DE2838782C3 (de) * | 1978-09-06 | 1982-01-14 | Loesche GmbH, 4000 Düsseldorf | Walzenschüsselmühle mit hydropneumatischer Federung der Mahlwalzen |
DE3100341A1 (de) * | 1981-01-08 | 1982-07-22 | Loesche GmbH, 4000 Düsseldorf | Walzenmuehle, insbesondere fuer die kohlenvermahlung |
JPS5836651A (ja) * | 1981-08-27 | 1983-03-03 | 住友セメント株式会社 | 竪型粉砕装置 |
JPS61227855A (ja) * | 1985-04-02 | 1986-10-09 | 川崎重工業株式会社 | 竪型ロ−ラミル |
JPS62204863A (ja) * | 1986-03-05 | 1987-09-09 | 川崎重工業株式会社 | 竪型ミル |
JPH0539647U (ja) * | 1991-11-05 | 1993-05-28 | 石川島播磨重工業株式会社 | 竪型ミルのローラ圧下装置 |
DE19603655A1 (de) * | 1996-02-01 | 1997-08-07 | Loesche Gmbh | Wälzmühle |
UA46144C2 (uk) * | 1997-04-15 | 2002-05-15 | Фсб | Валкова дробарка |
JP3524050B2 (ja) * | 2000-10-13 | 2004-04-26 | 川崎重工業株式会社 | セメント原料のための竪型ローラミル |
JP2002159875A (ja) * | 2000-11-28 | 2002-06-04 | Ishikawajima Harima Heavy Ind Co Ltd | 竪型ミル |
JP2004160429A (ja) * | 2002-11-13 | 2004-06-10 | Abe Kumiko | カイテンミル |
US7028934B2 (en) | 2003-07-31 | 2006-04-18 | F. L. Smidth Inc. | Vertical roller mill with improved hydro-pneumatic loading system |
DE10338154B4 (de) * | 2003-08-20 | 2010-09-02 | Humboldt Wedag Gmbh | Rollenmühle |
DE102006061328B4 (de) * | 2006-12-22 | 2014-01-16 | Gebr. Pfeiffer Ag | Wälzmühle |
-
2007
- 2007-02-28 DE DE102007009723A patent/DE102007009723A1/de not_active Withdrawn
-
2008
- 2008-02-25 EP EP08717096A patent/EP2125228B1/de active Active
- 2008-02-25 DK DK08717096.5T patent/DK2125228T3/da active
- 2008-02-25 CN CN2008800015599A patent/CN101588870B/zh active Active
- 2008-02-25 JP JP2009551181A patent/JP5265579B2/ja active Active
- 2008-02-25 WO PCT/EP2008/052262 patent/WO2008104521A1/de active Application Filing
-
2009
- 2009-02-25 US US12/528,479 patent/US8038084B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008104521A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008104521A1 (de) | 2008-09-04 |
CN101588870A (zh) | 2009-11-25 |
EP2125228B1 (de) | 2012-06-20 |
US20100252667A1 (en) | 2010-10-07 |
DK2125228T3 (da) | 2012-10-01 |
JP2010519036A (ja) | 2010-06-03 |
JP5265579B2 (ja) | 2013-08-14 |
CN101588870B (zh) | 2010-12-01 |
DE102007009723A1 (de) | 2008-09-04 |
US8038084B2 (en) | 2011-10-18 |
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Inventor name: FORNEFELD, HEIKO Inventor name: ZURHOVE, FRANZ-JOSEF Inventor name: SPLIETHOFF, THOMAS Inventor name: DILLY, DIRK Inventor name: GUERRERO PALMA, PEDRO Inventor name: PETERWERTH, BERNHARD Inventor name: KOENNING, LUDWIG Inventor name: RUETHER, THOMAS |
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