EP0829302A1 - Machine à deux rouleaux, en particulier presse à rouleaux pour le traitement en pression de matière granulaire - Google Patents

Machine à deux rouleaux, en particulier presse à rouleaux pour le traitement en pression de matière granulaire Download PDF

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Publication number
EP0829302A1
EP0829302A1 EP97112643A EP97112643A EP0829302A1 EP 0829302 A1 EP0829302 A1 EP 0829302A1 EP 97112643 A EP97112643 A EP 97112643A EP 97112643 A EP97112643 A EP 97112643A EP 0829302 A1 EP0829302 A1 EP 0829302A1
Authority
EP
European Patent Office
Prior art keywords
roller
rotary drive
drive motor
roll
speed
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Withdrawn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
EP97112643A
Other languages
German (de)
English (en)
Inventor
Siegfried Strasser
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.)
Deutz AG
Original Assignee
Deutz 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 Deutz AG filed Critical Deutz AG
Publication of EP0829302A1 publication Critical patent/EP0829302A1/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Withdrawn legal-status Critical Current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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/42—Driving mechanisms; Roller speed control

Definitions

  • the invention is directed to a two-roller machine, in particular a roller press, and to a method for operating the two-roller machine for pressure treatment of granular material, with two counter-rotating rollers rotatably mounted in a machine frame and separated from one another by a roller gap, between which the granular material is drawn in and subjected to a bed pressure treatment and is crushed.
  • One of the two rollers can be a fixed roller, which is supported with its bearings on the machine frame, and the other roller can be a loose roller, which is supported on the machine frame by an external force.
  • High-pressure roller presses or roller presses are known for so-called material bed comminution of granular material, such as cement clinker, which is pressed at high pressure into platelet-shaped agglomerates, which are then deagglomerated, the material once pressed already having a high proportion of the desired fineness.
  • one of the two rollers is designed as a fixed roller, which is supported via its bearings against the machine frame, while the other roller, as a loose roller, is supported via its bearings against an external force, for example against the hydraulic cylinders of a hydropneumatic system with which the roller press force applied and the adjustment of the roll gap width is made.
  • both rollers are normally driven in opposite directions at the same roller speed, each using their own drive motors of the same size with the necessary components gear, clutch, and torque support.
  • the object of the invention is to further develop the known two-roll machine of DE-38 34 425 A1 so that the disadvantages described are avoided, but the advantages achieved can be used.
  • one of the rollers advantageously the fixed roller
  • a rotary drive motor which provides 100% of the drive power required to operate the two-roller machine, so that the Two-roll machine, when the nip is filled with granular material, the other roll, preferably then the loose roll, works as a drag roller, driven by the frictional engagement by the fixed roller.
  • this roller which works as a drag roller, is connected to a much smaller rotary drive motor than the other roller, which is only intended to ensure that this drag roller starts up and otherwise only comes into action again when the speed drops.
  • the rotary drive motor is a speed-controlled motor according to the invention, or a clutch is arranged between the rotary drive motor and the roller gearbox, which only applies when the speed drops.
  • a speed monitoring device with which the interventions required to increase the speed are switched on.
  • An alternative according to the invention is to couple one of the two rollers, preferably also the fixed roller here, to a rotary drive motor which is 60% to 90%, preferably 80%, of the required total drive power to operate the two-roll machine and to equip the other roll, which is no longer working exclusively as a drag roll, with a rotary drive motor which applies the remaining required drive power, namely 10% to 40%, preferably 20% of the total required drive power.
  • the rotary drive motor of the entrained roller is regulated in such a way that it keeps a predetermined torque which corresponds to the desired drive power of 10% to 40%, preferably 20% of the total drive power of the two-roll machine to be used during its operation.
  • a predetermined torque which corresponds to the desired drive power of 10% to 40%, preferably 20% of the total drive power of the two-roll machine to be used during its operation.
  • the drive for the pure towing roller or for the roller, which partially functions as a towing roller is significantly smaller than the main drive of the other roller, the space requirement for this drive, which consists of a rotary drive motor, gearbox, clutch, torque support, is significantly reduced, so that at Rollers with a relatively small diameter, both drives can be arranged side by side on one side of the two-roll machine and accessibility is also improved when maintenance work is required.
  • roller diameter of both rollers no longer necessarily have to have the same diameter - the circumferential speed that is the same for both rollers is guaranteed by the frictional engagement over the granular material in the roller gap - it is possible to replace the rollers individually if necessary, which leads to the resulting downtimes Two-roll machine can be significantly reduced.
  • the invention is shown in an exemplary embodiment in a schematic plan view of a two-roll machine.
  • the two rollers 1, 2 are rotatably supported by their bearings 6, 7.
  • One of the two rollers, roller 2 in the exemplary embodiment is driven via its shaft 10 by a rotary drive motor M2, for which purpose the rotary drive motor M2 is connected to the shaft 10 via V-belts 9 and gear 3.
  • the rotary drive motor M2 is connected to the shaft 10 via V-belts 9 and gear 3.
  • the smaller drive for the other roller 1 which in this exemplary embodiment has the same diameter as the roller 2.
  • This on the shaft 11 of the roller 1 engaging drive, consisting of the rotary drive motor M1, V-belt 8 and gear 4 is now significantly smaller compared to the drive for the roller 2 according to the invention, since according to the invention with this drive only significantly lower drive power are to be transferred.
  • the rotary drive motor M1 is connected to a speed monitoring device (not shown) for the roller 1 if, except for starting, this drive is only to be switched on when the speed drops.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP97112643A 1996-09-13 1997-07-24 Machine à deux rouleaux, en particulier presse à rouleaux pour le traitement en pression de matière granulaire Withdrawn EP0829302A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19637275 1996-09-13
DE19637275A DE19637275A1 (de) 1996-09-13 1996-09-13 Zweiwalzenmaschine, insbesondere Walzenpresse zur Druckbehandlung körnigen Gutes

Publications (1)

Publication Number Publication Date
EP0829302A1 true EP0829302A1 (fr) 1998-03-18

Family

ID=7805501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112643A Withdrawn EP0829302A1 (fr) 1996-09-13 1997-07-24 Machine à deux rouleaux, en particulier presse à rouleaux pour le traitement en pression de matière granulaire

Country Status (3)

Country Link
US (1) US5911371A (fr)
EP (1) EP0829302A1 (fr)
DE (1) DE19637275A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067828A1 (fr) * 2007-11-27 2009-06-04 Bühler AG Broyeur à cylindres
DE102011000749A1 (de) * 2011-02-15 2012-08-16 Thyssenkrupp Polysius Ag Walzenmühle
CN104999597A (zh) * 2015-08-11 2015-10-28 广州市联冠机械有限公司 破胶机及其控制使用方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514953A2 (fr) * 1987-04-28 1992-11-25 Nittetsu Mining Co., Ltd. Broyeur à cylindres et procédé de broyage pour le broyeur

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1130365A (en) * 1912-07-15 1915-03-02 August F Altheide Roller-mill.
US3412769A (en) * 1965-04-12 1968-11-26 Rose Downs & Thompson Ltd Rolling equipment
DE3302176A1 (de) * 1983-01-24 1984-07-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zur kontinuierlichen druckzerkleinerung sproeden mahlgutes
GB2140171A (en) * 1983-05-04 1984-11-21 Boulton Ltd William Ball mill control device
JPS60141271A (ja) * 1983-12-27 1985-07-26 日本たばこ産業株式会社 たばこ裁刻機等における流量制御装置
US4589598A (en) * 1984-10-12 1986-05-20 Beloit Corporation Apparatus for controlling a variable speed gearmotor
DD268891A1 (de) * 1987-02-19 1989-06-14 Dessau Zementanlagenbau Veb Verfahren zur vor- bzw. feinzerkleinerung mineralischer rohstoffe in einer walzenmuehle
US4798343A (en) * 1987-09-30 1989-01-17 Union Oil Company Of California Low speed shut down apparatus and method for high temperature hammer mills
DE3834425A1 (de) * 1988-10-10 1990-04-12 Kloeckner Humboldt Deutz Ag Zweiwalzenmaschine insbesondere walzenpresse zur druckbehandlung koernigen gutes
US5395057A (en) * 1994-01-03 1995-03-07 Williams Patent Crusher & Pulverizer Company Interchangeable and reversible material reducing apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514953A2 (fr) * 1987-04-28 1992-11-25 Nittetsu Mining Co., Ltd. Broyeur à cylindres et procédé de broyage pour le broyeur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067828A1 (fr) * 2007-11-27 2009-06-04 Bühler AG Broyeur à cylindres
DE102011000749A1 (de) * 2011-02-15 2012-08-16 Thyssenkrupp Polysius Ag Walzenmühle
CN104999597A (zh) * 2015-08-11 2015-10-28 广州市联冠机械有限公司 破胶机及其控制使用方法

Also Published As

Publication number Publication date
US5911371A (en) 1999-06-15
DE19637275A1 (de) 1998-03-19

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