EP2879799A2 - Broyeur à galets et procédé permettant de broyer une matière à broyer au moyen d'un broyeur à galets - Google Patents

Broyeur à galets et procédé permettant de broyer une matière à broyer au moyen d'un broyeur à galets

Info

Publication number
EP2879799A2
EP2879799A2 EP13742256.4A EP13742256A EP2879799A2 EP 2879799 A2 EP2879799 A2 EP 2879799A2 EP 13742256 A EP13742256 A EP 13742256A EP 2879799 A2 EP2879799 A2 EP 2879799A2
Authority
EP
European Patent Office
Prior art keywords
drive
gear
control
grinding
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
Application number
EP13742256.4A
Other languages
German (de)
English (en)
Other versions
EP2879799B1 (fr
EP2879799B8 (fr
Inventor
Heiko Fornefeld
Pedro Guerrero Palma
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Industrial Solutions 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 ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp Industrial Solutions AG
Publication of EP2879799A2 publication Critical patent/EP2879799A2/fr
Publication of EP2879799B1 publication Critical patent/EP2879799B1/fr
Application granted granted Critical
Publication of EP2879799B8 publication Critical patent/EP2879799B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • 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
    • B02C15/007—Mills with rollers pressed against a rotary horizontal disc

Definitions

  • the invention relates to a roller mill and to a method for comminuting material to be ground using a roller mill, wherein at least two grinding rollers cooperate with a grinding plate for comminuting ground material.
  • DE 20 2009 016 825 U1 describes a roller mill with a grinding table and a plurality of grinding rollers rolling on the grinding table, wherein only the grinding plates are driven by at least two drives with motor and gear.
  • the at least two drives engage in a common sprocket so that all drives must rotate at the same speed.
  • at least one of the drives is provided with a turbo coupling.
  • the grinding table is driven by an arrangement of more than two drives.
  • electric motors are provided, which are fed by frequency converters and controlled by means of which speed and torque.
  • the frequency converters are organized according to the master-slave principle to ensure that all drives operate synchronously.
  • these frequency converters cause high costs for the drive trains.
  • the grinding rollers each have a motor with rotor winding and at least one control device for controlling the engine torque of at least one drive is provided, wherein the control device connected to the rotor winding at least one drive for influencing the rotor current is.
  • the influencing of the rotor current can be done, for example, by converters whose performance is in this type of influence on the speed deviation between the Operating point and rated point, which is generally ⁇ 40% of rated motor power. It can thus be used with a significantly lower power inverter, since the converter costs are close to proportional to their performance, here can be achieved a significant cost savings.
  • WO 2009/030609 Al describes a method for comminuting regrind with a roller mill, in which at least two grinding rollers are provided with associated drives, wherein a power compensation for the two drives is performed by controlling the grinding pressure of at least one of the grinding rollers, the performance of Drives are regulated in a predetermined ratio to each other.
  • DE 10 2007 033 256 A1 discloses a roller mill which comprises a main drive and an auxiliary drive for driving the grinding table, wherein a control device controls the auxiliary drive as a function of torque fluctuations of the main drive and / or speed fluctuations of the grinding table.
  • the present invention is based on the object to provide a new concept for controlling the drives, which allows a cost-effective control.
  • the roller mill according to the invention consists essentially of at least two grinding rollers, which cooperate with a grinding table for the comminution of ground material, wherein the at least two grinding rollers or the grinding table and at least one grinding roller each having a separate drive train for driving the same is assigned, each drive train a main motor and a Main transmission has.
  • At least one drive train additionally comprises a superimposition gearbox with a variable speed drive, wherein a control and regulating device connected to the at least one variable speed drive is provided is, which regulates the performance of the separate drive trains to each other via the at least one control drive.
  • the material to be ground is comminuted between at least two grinding rollers and a grinding table, wherein the at least two grinding rollers or the grinding table and at least one grinding roller are driven by separate drive trains, each comprising a main motor and a main gear.
  • at least one drive train is additionally equipped with a variable speed drive, which engages via a superposition gear in the drive train and controls the performance of the individual drives to each other via the at least one control drive.
  • the invention is based on the idea that power regulation does not necessarily require regulation over the entire power of the drive train.
  • the control intervention is usually only 5 to 50% of the total power of the drive train. It is therefore sufficient if the at least one variable speed drive contributes this percentage to the total power. This in turn has the consequence that a correspondingly smaller control drive can also be equipped with a smaller and therefore correspondingly less expensive frequency converter.
  • variable speed drive between 5 and 30%, preferably between 7 and 20%> of the total power of the associated drive train.
  • each variable speed drive can be associated with a controllable by the control and regulating frequency.
  • Control and regulating device in connection measuring device for detecting at least one operating parameter, such as speed or torque of Mahlrollen and / or the grinding table, provided.
  • the detected operating parameter then serves to control the variable speed drive.
  • variable speed drive can either be integrated in the main transmission or designed as a pre-gear stage.
  • the superposition gear can be formed by a planetary gear with planet carrier, ring gear and sun gear, wherein the control drive is preferably coupled to the ring gear, or to the planet carrier or the sun gear.
  • FIG. 1 shows a schematic representation of a roller mill with Mahlrollenantrieb, wherein the interacting with the control drive superposition gear is integrated in the main gear
  • Fig. 3 is a schematic representation of a roller mill with Mahlrollen- and
  • Fig. 4 is a schematic representation of a roller mill with Mahlrollen- and
  • FIG. 5 shows a detailed view of the drive train of the grinding roller drive according to FIG.
  • FIG. 7 is a detailed view of the drive train of the grinding table drive according to FIG.
  • FIG. 8 is a detailed view of the drive train of the grinding table drive according to FIG.
  • Fig. 1 shows a first embodiment of a roller mill according to the invention with several grinding rollers 1, which cooperate with a grinding table 2 for the comminution of ground material.
  • each grinding roller 1 is driven by a separate drive train 3, each having a main motor 30, a main gear 31, a superposition gear 33 and a variable speed drive 32, wherein it is not necessary that the variable speed drive 32 and the superposition gear 33 are provided in each drive train ,
  • fewer, in particular 2 grinding rollers or more grinding rollers, for example 4 grinding rollers may be provided instead of the three grinding rollers shown.
  • control and regulating device 4 which controls the performance of the drive trains 3 to each other via the variable speed drives 32.
  • the control can be done, for example, so that each drive train brings the same power.
  • only one drive train 3 is connected to the control and regulating device 4 in FIG.
  • the control and regulating device 4 is also connected to the other two drive trains in a corresponding manner.
  • the total power of a drive train is composed of the outputs of the main motor 30 and the variable speed drive 32, wherein the power of the variable speed drive is preferably between 5 and 30%, most preferably between 7 and 20% of the total power of a drive train.
  • Each control drive 32 is assigned a controllable by the control and regulating frequency 34 for influencing the control drive.
  • the control takes place as a function of at least one operating parameter, such as the speed of the grinding roller 1 and / or the torque of the main motor 30.
  • a measuring device 5 is provided at a suitable location, which detects the desired operating parameters and via a line 6 of the control and regulating device 4 transmitted.
  • the frequency converter 34 can be tuned to the compared to the main motor 30 significantly lower performance of the variable speed drive 32.
  • the superposition gear 33 is integrated in the main gear 31.
  • the rotational movements of the main motor 30 and control drive 32 are implemented there accordingly and transmitted via an output 35 to the grinding roller 1.
  • the main gear 31 is composed in the illustrated embodiment of two planetary stages, namely composed of the designed as a planetary gear superposition gear 33 and a planetary main stage 310.
  • the superposition gear 33 comprises, in a generally known manner, a planet carrier 330a, a ring gear 330b, a sun gear 330c, and planet gears 330d.
  • the control drive 32 is coupled via an output gear 321 to the ring gear 330b.
  • the sun gear 330c is in driving contact with the main motor 30.
  • the planetary main stage 310 is similarly composed of a planet carrier 310a, a ring gear 310b, a sun gear 310c, and planet gears 31Od.
  • the planet carrier 330a is connected to the sun gear 310c.
  • the output 35 is coupled to the planet carrier 310a and drives the grinding roller 1 at.
  • the superposition gear can also be designed as a Vorgetriebecut. A corresponding embodiment is shown in Fig. 2.
  • the drive train 3 ' is shown in more detail in FIG.
  • the superposition gear 33 ' is in turn designed as a planetary gear stage and comprises a planetary carrier 330'a, a ring gear 330'b, a sun gear 330'c and planet gears 330'd.
  • the variable speed drive 32 ' is coupled to the ring gear 330'b via a drive gear 321'.
  • the sun gear 330 'c is driven via the output shaft of the main motor 30'.
  • the output train 330 'e of the superposition gear 33' is coupled to the main gear 31 ', where a further reduction of the speed takes place.
  • the main gear 31 ' is here designed as a double planetary stage, but can also be formed as a front or bevel gear stage or as a combination of different gear stages.
  • the Mahltellerantrieb provides a drive train 7, which has a main motor 70, a main gear 71, a superposition gear 73 and a variable speed drive 72.
  • the variable speed drive 72 is also connected to the control and regulating device 4, which regulates the power of the drive trains 3 and 7 to each other via the variable speed drives 32 and 72 with associated frequency converters 34, 74.
  • the control and regulating device 4 may also be connected to the other Mahlrollen- drive trains in a corresponding manner.
  • the control is again in response to at least one operating parameter, such as the rotational speed of the grinding roller 1, the rotational speed of the grinding table 2 or the torque of the main motor 30.
  • measuring devices 5, 8 are provided at a suitable location, which detect the desired operating parameters and lines 6 , 9 of the control and regulating device 4 transmit.
  • the superposition gear 73 of the grinding table drive in the main gear 71 is integrated.
  • the rotational movements of the main motor 70 and the variable speed drive 72 are correspondingly implemented there and transmitted via an output 75 to a pinion gear 76 and a ring gear 77 of the grinding table 2.
  • the drive train 7 is shown in more detail in FIG. 7.
  • the main gear here consists of a bevel gear 711 in combination with the designed as a planetary gear superposition gear 73.
  • the superposition gear 73 includes a planet carrier 730a, a ring gear 730b, a sun gear 730c and planet gears 730d.
  • the variable speed drive 72 is coupled via a driven gear 721 with the ring gear 730b.
  • the sun gear 730c is in driving contact via the bevel gear with the main motor 70.
  • the output 75 of the superposition gear 73 is coupled via the pinion 76 and the ring gear 77 with the grinding table 2 for transmitting the rotational movement.
  • a grinding roller drive is again combined with a grinding table drive, at least one preferably several or all grinding rollers 1 being driven via separate drive trains 3 ', as explained in more detail with reference to FIGS. 2 and 6.
  • Mahltellerantrieb comprises a drive train 7 ', in which the superposition gear 73' in turn formed as Vorgetriebeshu and between the main motor 70 'and the main gear 71' is provided and with the variable speed drive 72 'is in communication, in turn via the control and regulating device 4th is controlled in dependence of at least one operating parameter.
  • the drive train 7 ' is shown in more detail in FIG. 8.
  • the superposition gearing 73 ' is in turn designed as a planetary gear stage and comprises a planet carrier 730'a, a ring gear 730'b, a sun gear 730'c and planet wheels 730'd.
  • the variable speed drive 72 ' is coupled via an output gear 72 to the ring gear 730'b.
  • the sun gear 730 'c in turn is in driving contact with the main motor 70'.
  • the output train 730'e of the superposition gearing 73 ' is coupled to the main gearing 71' designed as a bevel gear stage, where a further reduction of the rotational speed takes place.
  • the individual grinding rollers 1 are coupled to one another via the grinding plate 2 and the ground material or ground material bed thereon and, on the other hand, can have very different power consumptions, which, for example, on different rolling diameters on the grinding plate (position of the force application point) have different effective diameters of the individual grinding rollers (eg . Through wear) and due to a different intake behavior of the material to be ground in cooperation with the grinding table and grinding roller.

Landscapes

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

Abstract

L'invention concerne un broyeur à galets essentiellement constitué d'au moins deux galets de broyage qui coopèrent avec un plateau de broyage pour broyer une matière à broyer. Respectivement une chaîne cinématique séparée est associée aux deux galets de broyage ou plus ou au plateau de broyage et à au moins un galet de broyage pour les entraîner, chaque chaîne cinématique comportant un moteur principal et une transmission principale. Au moins une chaîne cinématique comprend en plus une boîte mixte pourvue d'un mécanisme régulateur, un dispositif de commande et de régulation étant en liaison avec le ou les mécanismes régulateurs et régulant la puissance des chaînes cinématiques séparées les unes par rapport aux autres au moyen du ou des mécanismes régulateurs.
EP13742256.4A 2012-08-01 2013-07-31 Broyeur à galets et procédé permettant de broyer une matière à broyer au moyen d'un broyeur à galets Active EP2879799B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012107043.1A DE102012107043B4 (de) 2012-08-01 2012-08-01 Rollenmühle und Verfahren zum Zerkleinern von Mahlgut mit einer Rollenmühle
PCT/EP2013/066119 WO2014020079A2 (fr) 2012-08-01 2013-07-31 Broyeur à galets et procédé permettant de broyer une matière à broyer au moyen d'un broyeur à galets

Publications (3)

Publication Number Publication Date
EP2879799A2 true EP2879799A2 (fr) 2015-06-10
EP2879799B1 EP2879799B1 (fr) 2016-09-07
EP2879799B8 EP2879799B8 (fr) 2016-12-07

Family

ID=48877276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13742256.4A Active EP2879799B8 (fr) 2012-08-01 2013-07-31 Broyeur à galets et procédé permettant de broyer une matière à broyer au moyen d'un broyeur à galets

Country Status (8)

Country Link
US (1) US9868122B2 (fr)
EP (1) EP2879799B8 (fr)
JP (1) JP6254161B2 (fr)
CN (1) CN104755171B (fr)
DE (1) DE102012107043B4 (fr)
DK (1) DK2879799T3 (fr)
PL (1) PL2879799T3 (fr)
WO (1) WO2014020079A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012106554A1 (de) * 2012-07-19 2014-05-15 Thyssenkrupp Resource Technologies Gmbh Verfahren und Anlage zur Zerkleinerung von Mahlgut mit einer Rollenmühle
DE102013200578A1 (de) * 2013-01-16 2014-07-17 Siemens Aktiengesellschaft Verfahren zur Antriebsregelung
DE102014210870A1 (de) * 2014-06-06 2015-12-17 Voith Patent Gmbh Maschinenanordnung zur Leistungsübertragung und Verfahren zum Steuern einer solchen Maschinenanordnung
EP3023157A1 (fr) * 2014-11-21 2016-05-25 Siemens Aktiengesellschaft Entraînement multiple pour une application lourde et procédé de fonctionnement d'un tel entraînement multiple
DE102015203856A1 (de) 2015-03-04 2016-12-15 Thyssenkrupp Ag Vertikal-Rollenmühle
DE102015006084B4 (de) * 2015-05-09 2023-09-28 Renk Gmbh Antriebsanordnung mit einem Überlagerungsgetriebe und einer mit variabel einstellbarer Drehzahl anzutreibenden Arbeitsmaschine
WO2018067103A1 (fr) 2016-10-03 2018-04-12 Arvos Raymond Bartlett Snow Llc Broyeur à rouleaux planétaires destiné au traitement de matière de départ à humidité élevée
CN108435339A (zh) * 2018-04-23 2018-08-24 珠海市万顺睿通科技有限公司 一种具有安全保护装置的制粉设备
CN109092453B (zh) * 2018-10-12 2021-03-09 河南先导机械力化学研究院有限公司 用于行星球磨机的球磨控制装置及控制方法
US10758912B1 (en) * 2019-04-11 2020-09-01 Gene P. Guthmiller Material processing system
AT524208B1 (de) * 2020-12-18 2022-04-15 Hehenberger Dipl Ing Gerald Triebstrang
DE102022206807A1 (de) * 2022-07-04 2024-01-04 Renk Gmbh System und Verfahren zum Starten von Maschinen mit hohem Trägheitsmoment
CN117427732A (zh) * 2023-10-31 2024-01-23 中材（天津）粉体技术装备有限公司 一种磨辊驱动的立式辊磨及其粉磨方法
CN118594693B (zh) * 2024-06-06 2026-05-19 合肥中亚建材装备有限责任公司天津分公司 一种主辊和辅辊均为主动转动件的立式辊磨及其设计方法

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JPH02104838U (fr) * 1989-02-07 1990-08-21
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Also Published As

Publication number Publication date
DE102012107043B4 (de) 2017-08-17
WO2014020079A3 (fr) 2014-04-10
JP2015523207A (ja) 2015-08-13
US20150196923A1 (en) 2015-07-16
DE102012107043A1 (de) 2014-05-15
PL2879799T3 (pl) 2017-03-31
US9868122B2 (en) 2018-01-16
CN104755171A (zh) 2015-07-01
CN104755171B (zh) 2018-07-20
WO2014020079A2 (fr) 2014-02-06
JP6254161B2 (ja) 2017-12-27
EP2879799B1 (fr) 2016-09-07
EP2879799B8 (fr) 2016-12-07
DK2879799T3 (da) 2017-01-02

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