EP3079825A1 - Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre - Google Patents

Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre

Info

Publication number
EP3079825A1
EP3079825A1 EP14809005.3A EP14809005A EP3079825A1 EP 3079825 A1 EP3079825 A1 EP 3079825A1 EP 14809005 A EP14809005 A EP 14809005A EP 3079825 A1 EP3079825 A1 EP 3079825A1
Authority
EP
European Patent Office
Prior art keywords
roller
displaceable
rotor
electric motor
shaft
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Withdrawn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
EP14809005.3A
Other languages
German (de)
English (en)
Inventor
Axel Fürst
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.)
ABB Schweiz AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP14809005.3A priority Critical patent/EP3079825A1/fr
Publication of EP3079825A1 publication Critical patent/EP3079825A1/fr
Withdrawn legal-status Critical Current

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
    • B02C4/02—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
    • B02C4/42—Driving mechanisms; Roller speed control

Definitions

  • the present invention relates to the field of roll mills. It relates to a roller mill with two ge ⁇ gen actually rotating rollers which are rotatably mounted in a frame, and an arrangement for driving such a roller mill.
  • Roll mills are used for grinding materials, in particular ores and cement. Roll mills typically have a roll diameter of 0.8 to 3 meters and a drive power of 0.2 to 5 megawatts. They are particularly energy efficient compared to other mill types. Such a roller mill is described for example in DE 4028015 AI.
  • a Wal ⁇ zenmühle two counter-rotating rolls 1,1 ' which rolls 1,1' are rotatably mounted in a frame horizontally and parallel to each other.
  • One of the two rollers 1 is usually fixed in the radial direction and another of the two rollers 1 'is pressed by a spring system on the fixed roller 1.
  • Each roller 1,1 ' has a grinding surface.
  • the opposite grinding surfaces of the rollers 1,1 ' form a wedge. Material is filled from above between the rollers 1,1 'in the wedge, guided by the rotation of the rollers 1,1' down and crushed by the wedge.
  • the rotation of the rollers 1,1 ' via egg ⁇ nen drive.
  • an electric motor via movable mechanical elements with one of the rolls or indirectly connected to both rolls.
  • Fig. 2 shows a roller mill with two drives.
  • a drive is assigned to one of the rollers 1,1 'and includes an electric motor 2, a propeller shaft 3 and a planetary gear 4.
  • di rectly ⁇ connects the Gelenkswel- le to the shaft of the sliding roller and the planetary gear between the Ge ⁇ steering shaft and the electric motor is arranged.
  • the electric motor and the planetary gear are stationary.
  • the transmission distributes the torque to both rollers.
  • the electric motor delivers the desired speed for the rollers without a speed adjustment of a transmission.
  • the drive does not comprise a gearbox and the electric motor is connected directly to the roller via the cardan shaft.
  • Fig. 3 shows two rollers, each with a drive.
  • a Ver ⁇ displacement of the displaceable roll 1 ' means that the shaft of the fixed electric motor 2 and the shaft of the displaceable roll 1' are no longer aligned.
  • the radial displacement between the shafts is compensated by movements in joints 31 of the propeller shaft 3. Since the displaceable shaft 1 'is displaced substantially orthogonal to the axial direction, the distance between the joints 31 of the articulated shaft 3 increases.
  • the necessary length adaptation of the propeller shaft 3 is realized by a telescopic mechanism 32.
  • Fig. 4 shows a universal shaft with a Teleskopmechanis ⁇ mechanism.
  • the joint shaft a in the axial direction of the propeller shaft 3
  • the propeller shaft 3 has a variable length and can transmit a torque.
  • the problem with this solution is that a propeller shaft with Teleskopmecha ⁇ mechanism is very expensive and maintenance-intensive.
  • the sliding surfaces of the toothing must always be lubricated. Due to the very dirty and dusty working environment, wel ⁇ ches work environment is caused by the grinding process, a very frequent maintenance, such as in a weekly rhythm, necessary.
  • Fig. 5 shows a slidable roll 1 'with a conge ⁇ impaired drive.
  • the displaceable roller 1 ' has a radial bearing 11 and an axial bearing 12.
  • one of the radial bearings can be combined with the axial bearing in a combined axial-radial bearing.
  • An electric motor 2 has a rotor 21 and a stator 22. The rotor is supported by a radial bearing 23 and an axial bearing 24.
  • a Ge ⁇ lenkswelle 3 connects the displaceable shaft 1 'with the rotor 21 of the electric motor 2.
  • the necessary length adjustment of the propeller shaft 3 with a displacement of 29iebba ⁇ ren shaft 1' is realized by a telescopic mechanism 32.
  • the object of the present invention is to provide a roller mill and an arrangement for driving a roller mill, which are less maintenance-intensive and less error-prone. This object is achieved by a roll mill and a Anord ⁇ voltage for driving a rolling mill with the features of the independent claims. Preferred exporting ⁇ insurance forms are the subject of the dependent patent claims.
  • a movable roller of a rolling mill is connected via a drive shaft with non-modifiable length ⁇ with an electric motor.
  • the displaceable roller is mounted in the axial and radial directions.
  • the electric motor has a rotor which can be displaced in the axial direction. Due to this floating mounting of the rotor of the electric motor, it is possible that Variegated ⁇ tion of the distance between the stationary stator of the electric motor and the movable shaft due to shifts of the movable shaft orthogonal to the axial direction of the sliding shaft without the use of a telescopic mechanism and using a Ge ⁇ steering shaft offset constant length. This allowed ⁇ light a simpler design with lower maintenance requirements and a lower error rate.
  • Figure 1 is a schematic representation of the milling process of a roll mill according to the prior art
  • Figure 2 is a perspective views of a roll mill with two drives according to the prior art
  • Figure 3 shows two rollers, each with a drive according to the
  • Figure 4 shows a propeller shaft with telescopic mechanism according to the prior art in a plan view
  • Figure 5 is a schematic representation of an axial section of a slidable ⁇ roll with a
  • FIG. 6 is a schematic representation of an axial
  • Section of a displaceable roller with a drive according to the invention Section of a displaceable roller with a drive according to the invention.
  • the displaceable roller 1 has a radial bearing 11 and an axial bearing 12.
  • An electric motor 2 has a rotor 21 and a stator 22.
  • the rotor 21 is guided over a radial bearing 23 so that the rotor 21 is displaceable in the axial direction.
  • a fixed shaft joint shaft during operation of the roller mill connects the displaceable shaft to the electric motor 2.
  • the axial bearing of the at ⁇ drive instead of the movable roller at the Gelenkwel ⁇ le or is arranged the rotor.
  • the drive has a gear, such as a planetary gear, wherein the transmission is arranged between the propeller shaft and the displaceable roller.
  • the gear is supported such that there is relative between the Ge ⁇ drives and the displaceable roll to no movement and the gearbox the same movements orthogonal learns to the axial direction of the displaceable roll as the displaceable roller itself.
  • the hinge shaft has outside the operation of the roll mill an adjustable length, for example in the form of a telescopic mechanism with a Feststellschrau ⁇ be. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Friction Gearing (AREA)

Abstract

L'invention concerne un broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre. Elle vise à ce qu'un broyeur à cylindre pourvu d'un cylindre (1') mobile soit entraîné au moyen d'un moteur électrique (2) pourvu d'un rotor (21) monté mobile dans la direction axiale. A cet effet, selon l'invention, le cylindre mobile (1') est monté dans la direction axiale et dans la direction radiale. Un arbre de transmission (3) d'une longueur constante est disposé entre le moteur électrique (2) et le cylindre mobile (1'), de sorte que le mouvement de rotation du rotor (21) peut être transféré dans un mouvement de rotation du cylindre mobile (1'). Dans le cas d'un déplacement du cylindre mobile (1') perpendiculairement à la direction axiale du cylindre mobile (1'), les articulations de l'arbre de transmission compensent le décalage angulaire résultant de l'arbre du cylindre mobile (1') et de l'arbre du moteur électrique (2). Le rotor compense la variation résultante de l'écart entre l'arbre du cylindre mobile (1') et l'arbre du moteur électrique (2) par un déplacement axial.
EP14809005.3A 2013-12-12 2014-12-08 Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre Withdrawn EP3079825A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14809005.3A EP3079825A1 (fr) 2013-12-12 2014-12-08 Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13197004.8A EP2883612A1 (fr) 2013-12-12 2013-12-12 Broyeur à rouleaux et dispositif d'entraînement d'un tel broyeur
PCT/EP2014/076815 WO2015086486A1 (fr) 2013-12-12 2014-12-08 Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre
EP14809005.3A EP3079825A1 (fr) 2013-12-12 2014-12-08 Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre

Publications (1)

Publication Number Publication Date
EP3079825A1 true EP3079825A1 (fr) 2016-10-19

Family

ID=49753091

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13197004.8A Withdrawn EP2883612A1 (fr) 2013-12-12 2013-12-12 Broyeur à rouleaux et dispositif d'entraînement d'un tel broyeur
EP14809005.3A Withdrawn EP3079825A1 (fr) 2013-12-12 2014-12-08 Broyeur à cylindre et système permettant l'entraînement d'un broyeur à cylindre

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13197004.8A Withdrawn EP2883612A1 (fr) 2013-12-12 2013-12-12 Broyeur à rouleaux et dispositif d'entraînement d'un tel broyeur

Country Status (6)

Country Link
EP (2) EP2883612A1 (fr)
AU (1) AU2014363719B2 (fr)
CA (1) CA2932845A1 (fr)
CL (1) CL2016001356A1 (fr)
PE (1) PE20161460A1 (fr)
WO (1) WO2015086486A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2755484T3 (es) 2017-05-09 2020-04-22 Buehler Ag Molino de rodillos para piensos y alimentos con un engranaje
MX2020004297A (es) 2017-10-25 2020-08-13 Basf Se Proceso para producir poliacrilamidas de asociacion hidrofoba.
WO2020079123A1 (fr) 2018-10-18 2020-04-23 Basf Se Procédé de fracturation de formations souterraines à l'aide de solutions aqueuses comportant des copolymères à association hydrophobe
CN109289980A (zh) * 2018-11-16 2019-02-01 南通亚威机械制造有限公司 一种水泥辊压机
WO2021037579A1 (fr) 2019-08-26 2021-03-04 Basf Se Procédé de fabrication de polyacrylamides contenant de la nvp
WO2021037578A1 (fr) 2019-08-26 2021-03-04 Basf Se Procédé de fabrication de nvp contenant des polyacrylamides
WO2022106308A1 (fr) 2020-11-23 2022-05-27 Basf Se Procédé de fabrication de copolymères contenant de la nvp hydrosolubles sous forme de poudre
CN112808383B (zh) * 2021-01-04 2023-03-10 中冶长天国际工程有限责任公司 一种破碎机及其破碎辊调节装置与破碎辊调节方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2250585A1 (de) * 1972-10-11 1974-05-02 Mannesmann Meer Ag Antrieb zweier walzen mit veraenderlichem achsabstand
DD134921A1 (de) * 1978-03-13 1979-04-04 Bernd Pester Antrieb fuer walzenmuehlen
DE4028015A1 (de) 1990-09-04 1992-03-05 Krupp Polysius Ag Verbesserung des einzugsverhaltens einer walzenmuehle
DE19822341B4 (de) * 1998-05-19 2007-10-18 Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh Antriebsvorrichtung für zwei gegenläufig angetriebene Walzen
DE102011000749A1 (de) 2011-02-15 2012-08-16 Thyssenkrupp Polysius Ag Walzenmühle
EP2545994A1 (fr) * 2011-07-15 2013-01-16 ABB Technology AG Agencement pour un broyeur à rouleaux

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015086486A1 *

Also Published As

Publication number Publication date
CL2016001356A1 (es) 2016-11-25
AU2014363719B2 (en) 2018-02-01
PE20161460A1 (es) 2017-02-03
EP2883612A1 (fr) 2015-06-17
WO2015086486A1 (fr) 2015-06-18
AU2014363719A1 (en) 2016-07-21
CA2932845A1 (fr) 2015-06-18

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