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EP1009528B1 - Verbesserungen an ringwalzenmühlen - Google Patents

Verbesserungen an ringwalzenmühlen Download PDF

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Publication number
EP1009528B1
EP1009528B1 EP97918237A EP97918237A EP1009528B1 EP 1009528 B1 EP1009528 B1 EP 1009528B1 EP 97918237 A EP97918237 A EP 97918237A EP 97918237 A EP97918237 A EP 97918237A EP 1009528 B1 EP1009528 B1 EP 1009528B1
Authority
EP
European Patent Office
Prior art keywords
ring
axis
arms
roller
crusher
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.)
Expired - Lifetime
Application number
EP97918237A
Other languages
English (en)
French (fr)
Other versions
EP1009528A1 (de
Inventor
Philippe Chevalier
Alain Cordonnier
Philippe Lagache
Christophe Obry
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.)
FCB CIMENT S A
Original Assignee
F C B
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 F C B filed Critical F C B
Publication of EP1009528A1 publication Critical patent/EP1009528A1/de
Application granted granted Critical
Publication of EP1009528B1 publication Critical patent/EP1009528B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed
    • B02C15/045—Mills with pressed pendularly-mounted rollers, e.g. spring pressed pressed against the interior of a ring rotating in a vertical plane

Definitions

  • the invention relates to shredders consisting of a ring with a horizontal axis, driven in rotation around its axis by appropriate means, and at least one roller whose axis is parallel to that of the ring and which is placed inside the latter so that it can roll on its inner surface, which constitutes a grinding track, and comprising means elastic, such as springs or hydro-pneumatic cylinders, to press the roller on the ring, the grinding being effected by crushing the material between the roller and the ring.
  • a crusher is described for example in GB-A-2246720.
  • the invention relates more particularly to shredders of this type in which the roller is supported at its ends by two arms mounted on the mill frame so as to be able to pivot around the same axis parallel to the axis of the ring, the elastic means of pressure acting on said arms.
  • the object of the present invention is to provide simple means for limiting the use at an angle to the roll relative to the ring, while limiting the grinding pressures and, by therefore, mechanical stresses to acceptable values, as well as to contribute reduction of the oscillatory movements of the roller and its attachments.
  • the two arms are connected to each other by a shaft of torsion parallel to the axis of rotation of the arms.
  • This tree can be arranged along the axis of rotation of the arms or away from it, on the same side as the roller with respect to this axis or on the opposite side.
  • the mill shown in Figures 1 and 2 is constituted by a ring 10, with axis horizontal, which is supported by pads 12 allowing its rotation about its axis; these pads could be replaced by bearings or rollers.
  • the ring is driven in rotation by conventional means, not shown, for example by a motor and a reduction gear whose output shaft carries a pinion engaged with a toothed ring fixed on the ring.
  • the ring consists of a ferrule internally coated with wear plates which, in its middle part, form an annular grinding track 14.
  • the ring is closed at its ends by fixed bottoms to which are connected a feed chute, at one end, a discharge chute and a suction duct for pneumatic evacuation of fine particles, at the other end; these elements have no been shown in the drawings.
  • a roller 16 whose axis is parallel to the axis of the ring is placed inside this last so as to be able to roll on track 14 when the ring is rotated, in idling; when the crusher is in production, the roller rolls on the material layer covering the runway.
  • the roller is provided with two shaft ends 18 mounted in bearings 20 fixed on two arms 22 disposed outside the ring, on either side of the latter; the bearings 20 are fixed between the ends of the arms 22.
  • One of the ends of the arms 22 is fixed, for example by keying, on a shaft 24 whose axis is parallel to the axis of the roller and which is supported at its ends by bearings 26 mounted on chairs 28.
  • Hydraulic cylinders 30 connect the other end of the arms 22 to the frame of the crusher or foundations and allow the roller to be pressed onto the track. These cylinders are powered by a hydraulic unit which adjusts the pressure in the cylinders and, consequently, the force exerted by the roller on the layer of material covering the track.
  • the torsional resistance characteristics of the shaft 24 are such that it allows a certain angular movement of the arms 22 relative to each other. Its role is to limit the biasing of the roller with respect to the track when the roller is lifted by a Localized excess thickness of the material layer, avoiding applying local pressure excessive on the material layer and the track which could create stresses abnormal mechanics in the roller and the track. It also helps reduce oscillatory movements of the roller and arms 22
  • the shaft 24 serves both hinge axis for the arm 22 and torsion shaft.
  • the arms 22 could be rotatably mounted, independently of one of the other, on a tree arranged like the tree 24 and the torsion tree could be a tree tubular, coaxial with the first and whose ends would be fixed to the arms 22.
  • the shaft 24 could be placed outside of the ring.
  • FIG 3 shows another embodiment in which the torsion shaft is away from the axis of articulation of the arms 22 'supporting the roller 16', instead of being disposed coaxially as in the crusher of Figures 1 and 2.
  • Each arm 22 ' is here articulated on a shaft end 32 mounted on a chair 28 'and the two arms are connected together by a shaft of tubular torsion 24 'arranged opposite the roller with respect to the axis of articulation of the arms
  • This arrangement allows the torsion shaft to be placed outside the ring, which presents definite advantages.
  • the torsion shaft also works in bending and it is understood that the expression "torsion shaft" used in the description and the claims does not exclude this embodiment and does not imply not that the shaft works exclusively in torsion.
  • roller support arms and the torsion shaft could be adopted without departing from the scope of the invention as defined by the claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (7)

  1. Mühle bestehend aus einem Ring (10, 10') mit horizontaler Achse, Mitteln zum Drehantrieb des Ringes um dessen Achse, wenigstens einer Walze (16, 16'), deren Achse parallel zu derjenigen des Ringes verläuft und die in diesem letzten angeordnet ist, derart, daß sie auf der inneren Oberfläche (14, 14') desselben rollen kann, und elastischen Mitteln (30), um die Walze gegen den Ring zu drücken, wobei die Walze an ihren Enden von zwei Armen (22, 22') getragen wird, die derart an dem Gestell der Mühle montiert sind, daß sie um eine parallel zur Ache des Ringes verlaufende Achse schwenken kann, dadurch gekennzeichnet, daß die zwei Arme (22, 22') über eine parallel zur Drehachse der Arme verlaufende Torsionswelle (24, 24') miteinander verbunden sind.
  2. Mühle nach Anspruch 1, dadurch gekennzeichnet, daß die Torsionswelle (24) gemäß der Drehachse der Arme (22) angeordnet ist.
  3. Mühle nach Anspruch 2, dadurch gekennzeichnet, daß die Arme (22) an der Torsionswelle (24), die an deren Enden von am Gestell der Mühle montierten Lagerblöcken (26) getragen wird, verkeilt sind.
  4. Mühle nach Anspruch 1, dadurch gekennzeichnet, daß die Torsionswelle (24) von der Drehachse der Arme (22') entfernt angebracht ist.
  5. Mühle nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß die Torsionswelle den Ring durchquert.
  6. Mühle nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Torsionswelle außerhalb des Ringes angebracht ist.
  7. Mühle nach irgendeinem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß die Torsionswelle rohrförmig ist.
EP97918237A 1997-04-15 1997-04-15 Verbesserungen an ringwalzenmühlen Expired - Lifetime EP1009528B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1997/000680 WO1998046356A1 (fr) 1997-04-15 1997-04-15 Perfectionnements aux broyeurs a anneau

Publications (2)

Publication Number Publication Date
EP1009528A1 EP1009528A1 (de) 2000-06-21
EP1009528B1 true EP1009528B1 (de) 2002-07-03

Family

ID=9502899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97918237A Expired - Lifetime EP1009528B1 (de) 1997-04-15 1997-04-15 Verbesserungen an ringwalzenmühlen

Country Status (14)

Country Link
US (1) US6227470B1 (de)
EP (1) EP1009528B1 (de)
JP (1) JP3875278B2 (de)
AT (1) ATE219971T1 (de)
AU (1) AU2643797A (de)
CA (1) CA2286563C (de)
CZ (1) CZ295353B6 (de)
DE (1) DE69713814T2 (de)
DK (1) DK1009528T3 (de)
ES (1) ES2180038T3 (de)
PL (1) PL186893B1 (de)
SK (1) SK283611B6 (de)
UA (1) UA46144C2 (de)
WO (1) WO1998046356A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003278180A (ja) * 2002-03-26 2003-10-02 Hitachi Constr Mach Co Ltd 破砕機アタッチメントと破砕機
DE102007009723A1 (de) * 2007-02-28 2008-09-04 Polysius Ag Rollenmühle
DE102009000438A1 (de) * 2009-01-27 2010-07-29 Neuman & Esser Gmbh Mahl- Und Sichtsysteme Pendelmühle
DE102020103823B3 (de) * 2020-02-13 2021-01-21 Matthews International GmbH Drehmomentstütze zum Abfangen von Antriebsmomenten und Walzenanordnung mit einer Drehmomentstütze

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4024109A1 (de) * 1990-07-30 1992-02-06 Kloeckner Humboldt Deutz Ag Zweiwalzenmaschine, insbesondere rollenpresse
GB2246720A (en) * 1990-08-03 1992-02-12 Chen Chi Shiang Improved grinding machine
US5060874A (en) * 1990-08-16 1991-10-29 Mclanahan Corporation Crusher
FR2742073B1 (fr) * 1995-12-07 1998-02-20 Fcb Perfectionnements aux broyeurs a anneau

Also Published As

Publication number Publication date
PL336309A1 (en) 2000-06-19
EP1009528A1 (de) 2000-06-21
WO1998046356A1 (fr) 1998-10-22
UA46144C2 (uk) 2002-05-15
CA2286563A1 (fr) 1998-10-22
CZ351499A3 (cs) 2000-06-14
DE69713814D1 (de) 2002-08-08
DE69713814T2 (de) 2003-03-27
CZ295353B6 (cs) 2005-07-13
JP2001518840A (ja) 2001-10-16
SK283611B6 (sk) 2003-10-07
JP3875278B2 (ja) 2007-01-31
DK1009528T3 (da) 2002-10-14
US6227470B1 (en) 2001-05-08
PL186893B1 (pl) 2004-03-31
ATE219971T1 (de) 2002-07-15
SK139299A3 (en) 2000-06-12
ES2180038T3 (es) 2003-02-01
AU2643797A (en) 1998-11-11
CA2286563C (fr) 2003-04-08

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