EP3868476A1 - Mécanisme de broyage, procédé de fonctionnement - Google Patents
Mécanisme de broyage, procédé de fonctionnement Download PDFInfo
- Publication number
- EP3868476A1 EP3868476A1 EP20158007.3A EP20158007A EP3868476A1 EP 3868476 A1 EP3868476 A1 EP 3868476A1 EP 20158007 A EP20158007 A EP 20158007A EP 3868476 A1 EP3868476 A1 EP 3868476A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinder
- gar
- grinding table
- gtl
- rotation
- 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.)
- Withdrawn
Links
Images
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
- B02C15/10—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by other means than a centrally-arranged member
-
- 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
- B02C15/006—Ring or disc drive gear arrangement
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Definitions
- Industrial grinders of the type defined at the outset in particular vertical mills which are used, for example, in cement grinding, comprise a grinding table which is set in rotation via a drive.
- a grinding table which is set in rotation via a drive.
- several grinding rollers distributed around the circumference press on the grinding table, which grind the ground material applied to the grinding table.
- the grinding table rotates around a first axis of rotation and the grinding rollers each rotate around a second axis of rotation.
- a force is applied to the grinding rollers, usually hydraulically, so that the grinding table is evenly loaded by all grinding rollers.
- the pressure and transverse forces naturally occurring in the grinding process are absorbed by the bearing of the grinding table.
- Such a bearing is usually designed as a sliding bearing, the bearing often being part of the gear unit that sets the grinding table in rotation.
- the sensor arrangement according to the invention which detects a change in the inclination of the grinding table beyond a certain threshold value, makes it possible to prevent serious damage to sliding bearings or other bearings of the grinding table and adjacent components in grinding mechanisms according to the invention, in particular vertical mills. Accordingly, long production downtimes and costly repairs are avoided.
- the determination according to the invention of a change in the inclination of the grinding table enables the tilting of the grinding table to be separated from any translational movements that are generally unproblematic for the operation of the bearing of the grinding table.
- the method according to the invention for operating a grinder includes the operation of the grinder, measurement of variables that enable the tilting of the grinding table to be determined from a target position, comparison of a change in inclination of the grinding table with a certain threshold value, output a warning by means of a human-machine interface that the change in inclination of the grinding table has reached or exceeded the specific threshold value.
- the change in the inclination of the grinding table basically relates to a change in the alignment of the first axis of rotation of the grinding table.
- the GTL grinding table is axially equipped with BEA bearings, which are designed as plain bearings SBE and here as tilting pad bearings TPB.
- the grinding table GTL is set in rotation about the vertical first axis of rotation RX1 by means of a drive (not shown) by means of a drive shaft DRS.
- the drive shaft DRS is supported by radial bearings RBE in relation to a stator STA in such a way that the first axis of rotation RX1 is aligned vertically.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Crushing And Grinding (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20158007.3A EP3868476A1 (fr) | 2020-02-18 | 2020-02-18 | Mécanisme de broyage, procédé de fonctionnement |
CN202180015295.8A CN115135419A (zh) | 2020-02-18 | 2021-01-19 | 研磨机、操作方法 |
FIEP21704178.9T FI4106925T3 (fi) | 2020-02-18 | 2021-01-19 | Jauhatuskoneisto, käyttömenetelmä |
US17/797,355 US11691154B2 (en) | 2020-02-18 | 2021-01-19 | Grinder, method for operation |
PCT/EP2021/051058 WO2021164970A1 (fr) | 2020-02-18 | 2021-01-19 | Broyeur et procédé pour le faire fonctionner |
EP21704178.9A EP4106925B1 (fr) | 2020-02-18 | 2021-01-19 | Mécanisme de broyage, procédé de fonctionnement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20158007.3A EP3868476A1 (fr) | 2020-02-18 | 2020-02-18 | Mécanisme de broyage, procédé de fonctionnement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3868476A1 true EP3868476A1 (fr) | 2021-08-25 |
Family
ID=69699795
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20158007.3A Withdrawn EP3868476A1 (fr) | 2020-02-18 | 2020-02-18 | Mécanisme de broyage, procédé de fonctionnement |
EP21704178.9A Active EP4106925B1 (fr) | 2020-02-18 | 2021-01-19 | Mécanisme de broyage, procédé de fonctionnement |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21704178.9A Active EP4106925B1 (fr) | 2020-02-18 | 2021-01-19 | Mécanisme de broyage, procédé de fonctionnement |
Country Status (5)
Country | Link |
---|---|
US (1) | US11691154B2 (fr) |
EP (2) | EP3868476A1 (fr) |
CN (1) | CN115135419A (fr) |
FI (1) | FI4106925T3 (fr) |
WO (1) | WO2021164970A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5191713A (en) * | 1987-12-16 | 1993-03-09 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Electronic tilt measuring system |
US7182283B1 (en) * | 2004-12-17 | 2007-02-27 | Engineering Consultants Group, Inc. | Pulverizer real-time monitoring system |
EP2221129A1 (fr) * | 2007-12-07 | 2010-08-25 | Sintokogio, Ltd. | Dispositif pour régénérer du sable de moulage |
EP3056278A1 (fr) | 2015-02-10 | 2016-08-17 | Siemens Aktiengesellschaft | Système d'engrenage pour un moulin vertical |
US20180099288A1 (en) * | 2016-10-12 | 2018-04-12 | Gebr. Pfeiffer Se | Bearing element suitable for supporting a grinding table in a roller mill |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7226010B2 (en) * | 2004-02-27 | 2007-06-05 | Abb Inc. | Method and apparatus for solid fuel pulverizing operation and maintenance optimization |
TW201043336A (en) | 2009-04-01 | 2010-12-16 | Smidth As F L | Method for controlling the material feed to a roller mill and such mill |
BR112012021743A2 (pt) * | 2010-03-01 | 2016-08-23 | Siemens Ag | módulo de mancal apresentando um dispositivo sensor |
US8608097B2 (en) * | 2010-11-08 | 2013-12-17 | Alstom Technology Ltd | System and method for monitoring operational characteristics of pulverizers |
US20200047187A1 (en) | 2016-02-08 | 2020-02-13 | Loesche Gmbh | Grinding-roller apparatus |
EP3505258B1 (fr) * | 2018-01-02 | 2020-09-02 | Sigma Laborzentrifugen GmbH | Centrifugeuse de laboratoire |
-
2020
- 2020-02-18 EP EP20158007.3A patent/EP3868476A1/fr not_active Withdrawn
-
2021
- 2021-01-19 FI FIEP21704178.9T patent/FI4106925T3/fi active
- 2021-01-19 US US17/797,355 patent/US11691154B2/en active Active
- 2021-01-19 WO PCT/EP2021/051058 patent/WO2021164970A1/fr active Application Filing
- 2021-01-19 CN CN202180015295.8A patent/CN115135419A/zh active Pending
- 2021-01-19 EP EP21704178.9A patent/EP4106925B1/fr active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5191713A (en) * | 1987-12-16 | 1993-03-09 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Electronic tilt measuring system |
US7182283B1 (en) * | 2004-12-17 | 2007-02-27 | Engineering Consultants Group, Inc. | Pulverizer real-time monitoring system |
EP2221129A1 (fr) * | 2007-12-07 | 2010-08-25 | Sintokogio, Ltd. | Dispositif pour régénérer du sable de moulage |
EP3056278A1 (fr) | 2015-02-10 | 2016-08-17 | Siemens Aktiengesellschaft | Système d'engrenage pour un moulin vertical |
US20180099288A1 (en) * | 2016-10-12 | 2018-04-12 | Gebr. Pfeiffer Se | Bearing element suitable for supporting a grinding table in a roller mill |
Also Published As
Publication number | Publication date |
---|---|
EP4106925A1 (fr) | 2022-12-28 |
US20230057328A1 (en) | 2023-02-23 |
EP4106925B1 (fr) | 2023-11-15 |
CN115135419A (zh) | 2022-09-30 |
US11691154B2 (en) | 2023-07-04 |
FI4106925T3 (fi) | 2024-02-13 |
WO2021164970A1 (fr) | 2021-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1262280B1 (fr) | Dispositif de galetage pour écrouissage des paliers des vilebrequins | |
DE102015100371B4 (de) | Anpassungsmechanismus für Rundlauf und dynamisches Gleichgewicht eines drehenden Werkzeugs | |
EP3086901B1 (fr) | Dispositif de rectification de cylindre et procédé de rectification d'un cylindre | |
DE69633689T2 (de) | Gerät zum Oberflächenbearbeiten von heissgewalzten Stahlmaterialien | |
DE10119209A1 (de) | Fehlerdiagnoseverfahren und -vorrichtung | |
WO2007143986A1 (fr) | Bride à orifice du couple de rotation | |
EP1607714B1 (fr) | Procédé et dispositif pour mesurer le jeu d'un joint pivotable | |
EP2156921A1 (fr) | Dispositif de réduction d'oscillations d'une broche d'outil | |
EP2131178B1 (fr) | Procédé de diagnostic pour au moins un roulement à billes, en particulier pour un palier à billes oblique, système de diagnostic correspondant et utilisation d'un tel système de diagnostic | |
WO1992013652A1 (fr) | Dispositif de mesure utile pour regler l'emprise et son procede d'exploitation | |
DE112017002650T5 (de) | Vorrichtung und Verfahren zur Vorhersage des Ermüdungszustands von Wälzanlagen | |
EP1227300A2 (fr) | Machine de mesure de coordonnées pour la mesure coordonnées d'objets | |
EP3230008B1 (fr) | Lunette de mesure pour supporter et mesurer des zones de pièce centrées, meuleuse pourvue d'une telle lunette de mesure et procédé de support et de mesure de zones de pièce centrées | |
DE102015008113A1 (de) | Herstellungseinrichtung und Herstellungsverfahren zum Herstellen eines weniger unausbalancierten Lüfterflügels | |
EP4106925B1 (fr) | Mécanisme de broyage, procédé de fonctionnement | |
EP1861223B1 (fr) | Procédé et dispositif pour le galetage de vilebrequins | |
DE19948134C2 (de) | Verfahren zum Betrieb einer Wälzstoßmaschine | |
DE102008055977A1 (de) | Verfahren und Vorrichtung zur Bestimmung der Verformung eines rotierenden spanenden Werkzeugs | |
EP2691823B1 (fr) | Procédé de mesurage d'un arbre | |
EP3588045A1 (fr) | Procédé de détermination d'un déséquilibre d'un rotor élastique d'arbre en ce qui concerne la flexion extérieure | |
DE3902840C2 (fr) | ||
DE2701593C2 (de) | Verfahren zum Maßwalzen von Rotationskörpern und Walzgerüst zur Durchführung des Verfahrens | |
DE102015201582B4 (de) | Ermittlung und Korrektur eines Fehlers einer Drehvorrichtung für ein Koordinatenmessgerät | |
DE112017006773B4 (de) | Schleifvorrichtung und schleifverfahren | |
DE102007028699B4 (de) | Verfahren zum Bestimmen einer Vorspannkraft zwischen zylindrischen Oberflächen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20220226 |