EP3868476A1 - Mécanisme de broyage, procédé de fonctionnement - Google Patents

Mécanisme de broyage, procédé de fonctionnement Download PDF

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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Withdrawn
Application number
EP20158007.3A
Other languages
German (de)
English (en)
Inventor
Bruno Back
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flender GmbH
Original Assignee
Flender GmbH
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
Application filed by Flender GmbH filed Critical Flender GmbH
Priority to EP20158007.3A priority Critical patent/EP3868476A1/fr
Priority to PCT/EP2021/051058 priority patent/WO2021164970A1/fr
Priority to US17/797,355 priority patent/US11691154B2/en
Priority to EP21704178.9A priority patent/EP4106925B1/fr
Priority to FIEP21704178.9T priority patent/FI4106925T3/fi
Priority to CN202180015295.8A priority patent/CN115135419A/zh
Publication of EP3868476A1 publication Critical patent/EP3868476A1/fr
Withdrawn legal-status Critical Current

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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
    • 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)
EP20158007.3A 2020-02-18 2020-02-18 Mécanisme de broyage, procédé de fonctionnement Withdrawn EP3868476A1 (fr)

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
PCT/EP2021/051058 WO2021164970A1 (fr) 2020-02-18 2021-01-19 Broyeur et procédé pour le faire fonctionner
US17/797,355 US11691154B2 (en) 2020-02-18 2021-01-19 Grinder, method for operation
EP21704178.9A EP4106925B1 (fr) 2020-02-18 2021-01-19 Mécanisme de broyage, procédé de fonctionnement
FIEP21704178.9T FI4106925T3 (fi) 2020-02-18 2021-01-19 Jauhatuskoneisto, käyttömenetelmä
CN202180015295.8A CN115135419A (zh) 2020-02-18 2021-01-19 研磨机、操作方法

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
WO2011107107A1 (fr) * 2010-03-01 2011-09-09 Siemens Aktiengesellschaft Module palier doté d'un capteur
US8608097B2 (en) * 2010-11-08 2013-12-17 Alstom Technology Ltd System and method for monitoring operational characteristics of pulverizers
CN108698049B (zh) 2016-02-08 2020-09-22 德国莱歇公司 研磨辊装置
EP3505258B1 (fr) * 2018-01-02 2020-09-02 Sigma Laborzentrifugen GmbH Centrifugeuse de laboratoire

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
US20230057328A1 (en) 2023-02-23
EP4106925B1 (fr) 2023-11-15
FI4106925T3 (fi) 2024-02-13
EP4106925A1 (fr) 2022-12-28
WO2021164970A1 (fr) 2021-08-26
CN115135419A (zh) 2022-09-30
US11691154B2 (en) 2023-07-04

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