EP2063993B1 - Schwingmühle mit gleitführung - Google Patents

Schwingmühle mit gleitführung Download PDF

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Publication number
EP2063993B1
EP2063993B1 EP07803188A EP07803188A EP2063993B1 EP 2063993 B1 EP2063993 B1 EP 2063993B1 EP 07803188 A EP07803188 A EP 07803188A EP 07803188 A EP07803188 A EP 07803188A EP 2063993 B1 EP2063993 B1 EP 2063993B1
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EP
European Patent Office
Prior art keywords
grinding
guide
grinding unit
vibration mill
mill according
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.)
Active
Application number
EP07803188A
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German (de)
English (en)
French (fr)
Other versions
EP2063993A1 (de
Inventor
Ernst Haas
Lilli Elies
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.)
FLSmidth Wuppertal GmbH
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FLSmidth Wuppertal GmbH
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Publication of EP2063993A1 publication Critical patent/EP2063993A1/de
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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
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/14—Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting

Definitions

  • the invention relates to a vibrating mill, preferably a disc vibrating mill, comprising a grinding unit and a vibrating drive, by means of which the grinding unit can be excited to oscillate.
  • a vibratory mill of this kind is known in the art CH509102 or DE 38 34 456 C2 known.
  • it can come by the type of suspension or installation on a solid footprint not only to a desired oscillation of the grinding vessel in a parallel to the grinding ground swing level, but also to vertical oscillations and tilting movements.
  • the invention has the object, advantageously further develop a vibrating mill of the type mentioned, so that in particular vertical vibrations and tilting movements of the grinder and related disadvantages are avoided as much as possible.
  • the holding device can be a frame-type device or a holding frame which has a high rigidity and to which both the oscillating drive and at least one guide counter-element of the sliding guide can be attached.
  • the swinging plane is in the context of the invention, a practically solid reference plane, within or parallel to the only movements of the grinding unit according to the vibration excitation are possible. This mobility thus includes displacements and rotations in which no appreciable component of motion perpendicular to the said swing plane is included.
  • the sliding guide is adapted insofar that the grinding unit can not perform any rotational or tilting movements about axes of rotation parallel to the swinging plane and no movements perpendicular to the swinging plane.
  • the term sliding guide includes any types of corresponding plane parallel guides.
  • slideways formed from surfaces of two or more guiding or sliding elements which slide directly along one another and which, with a suitable coating (eg with plastic, such as, for example, PTFE), can either slide dry or with the use of a lubricant.
  • a suitable coating eg with plastic, such as, for example, PTFE
  • direct sliding guides are also those in which separate sliding or rolling elements are used between the elements guided to each other.
  • the milling unit is held parallel to the plane movable to an eccentric drive plane determined by an eccentric rotation of the oscillating drive.
  • the oscillating drive attached to the holding device suitable for transmitting forces acting parallel to the rocking plane forces on the holding device, preferably flanged to it is.
  • a possible embodiment may consist in that the sliding guide at least one laterally over the housing base contour of the milling unit projecting, with the milling unit firmly connected guide element and at least one fixed to the holding device, the guide element with respect to a projection on the swing plane overlapping, parallel to the guide element guide counter-element having.
  • the grinding wall is surrounded by a housing part, preferably by a housing ring, of the grinding unit, that the housing part is fixedly connected to an upper plate-like guide element and to a lower plate-like guide element spaced parallel thereto, the plate-like guide elements Embrace guide counter-element to form the slide.
  • a first guide surface can be provided on the lower side and a second guide surface parallel thereto on the upper guide element, wherein parallel guide surfaces are assigned to the guide surfaces on the guide counter element.
  • the vertical distance between the first and second guide surfaces can approximately correspond to the vertical distance between the associated first and second guide opposing surfaces.
  • the sliding guide on the milling unit acts at least approximately at the height of the center of gravity of the milling unit and / or approximately at the height of the center of gravity of the grinding wall and / or a grinding ring and / or a grinding stone.
  • a preferred embodiment is seen in that the upper guide surface at or above the grinding chamber and that the lower guide surface is arranged at or below the grinding chamber.
  • the guide counter element a housing portion of the milling unit, preferably the housing ring, with respect to the management level, leaving one for the oscillating drive sufficient lateral space, preferably along the entire circumference, surrounds.
  • the housing ring which may have a cylindrical outer wall, is arranged with lateral play in a preferably round or cylindrical center opening of the guide counter element and the plate-like guide elements survive in any possible oscillating position of the milling unit on the edge of the central opening ,
  • the oscillating drive there is the possibility that it has a drive motor attached to the holding device, which rotatably drives an eccentric in an eccentric drive plane, and that the eccentric acts on the grinder for vibrational excitation.
  • the eccentric can have an eccentric pin which engages in a pivot bearing, for example a ball bearing, accommodated on the milling unit, preferably on the underside.
  • the milling unit may comprise a cooling device acting on the grinding wall, which preferably has at least one cooling channel which is directly adjoining the grinding wall on the outside.
  • a discharge channel can be present, which then surrounds the grinding plate along its circumference, in the cross section radially outward and downwards.
  • the grinding floor can adjoin with its edge directly to the lateral grinding wall, on the other hand be moved to divert the comminuted material to be ground in the discharge channel in a position moved away from the grinding wall, so that a passage from the grinding chamber to the discharge channel.
  • the grinding floor in the milling unit by means of a two-sided effective lifting device, preferably by means of a two-sided effective pneumatic or hydraulic cylinder-piston unit, is vertically adjustable relative to the movement or rocking plane of the milling unit.
  • the pivot bearing on the upper side with a base plate of the milling unit be connected, which forms a basis for the two-sided effective lifting element.
  • an eccentric counterweight driven by the drive motor can be present, which is preferably adjustable to adapt to different operating conditions.
  • Fig. 1 shows in sectional view a vibrating mill 1 according to the invention, especially a disc vibrating mill, according to a preferred embodiment.
  • This has a frame-like, ie in itself rigid holding device 2, an attached oscillating drive 3 and one thereof to rotary vibrations stimulable milling unit 4.
  • the grinding unit 4 represents a module that can be excited into vibrations by a separate vibratory drive that acts on the counting unit for receiving and comminuting grinding stock.
  • the grinding unit comprises a grinding wall 5, a grinding bottom 6 and a grinding lid 7, which together have a grinding chamber 8.
  • the comminution of the ground material takes place in that due to its smaller compared to the grinding ground 6 dimensions in the grinding chamber 8 movable millstone 10 according to the vibratory drive in said grinding chamber performs movements, wherein the millbase in the constantly changing in width grinding gap 11 between the grinding wall 5 and Mahlstein 10 is crushed.
  • a grinding gap that is as parallel as possible to be formed.
  • designed as a solid body millstone 10 may be in the grinding chamber a so-called. Mahlring (not shown) added.
  • the dimensions or diameter are adjusted so that the grinding ring within the grinding wall 5 and the grinding stone within the Mahlringes slidably rests on the grinding base 6.
  • the grinding unit 4 by means of the oscillating drive 3 in the reference to Fig. 2 further described manner excited to torsional vibrations.
  • a sliding guide designated as a whole with 12 engages the milling unit 4. This ensures that the grinding unit 4 is held on the holding device 2 only plane-parallel movable to a swing plane as a respect.
  • the frame-like holding device 2 from a number of fixedly on a shelf 13 uprights 14, a mounted thereon, for example bolted bearing plate 15 and turn a group of substantially rigidly upstanding from the bearing plate 15 supports 16, in which it is in the example chosen, but not necessary to extruded profiles trained.
  • each L 17 is attached by means of screws 17 an L-profile.
  • the guide counter-element 20 which forms the sliding guide 12 together with an upper and a lower guide element 21, 22.
  • the preferably closed at its periphery guide counter-element 20 surrounds a housing portion of the milling unit 4, in the example shown specifically a housing ring 23, with respect to the guide plane S, leaving a sufficient for the oscillating drive lateral clearance 24.
  • a corresponding vibration movement is determined by the in Fig. 1 generated with illustrated oscillating drive 3.
  • Fig. 2 illustrated by an enlarged detail of the section II Fig. 1 some more constructive details.
  • a guide surface 36 is provided on the upper guide element 21 on the underside, and a further guide surface 37 parallel thereto is provided on the upper guide element 22 on the upper side.
  • the surfaces 36, 37 are assigned to the guide counter-element 20, which has the function of a sliding ring, respectively upper and lower side parallel guide counter surfaces 38, 39.
  • a center of gravity 40 is indicated to show that the sliding guide 12 engages the grinding unit 4 approximately at the height of this center of gravity 40.
  • the upper guide surface 36 above the grinding chamber 8 and the lower guide surface 37 is arranged approximately at the height of the height-adjustable grinding ground 6.
  • FIG. 2 shows Fig. 2 (deviating from Fig. 1 for the grinding operation) to be selected for emptying comminuted material to be ground from the grinding chamber 8 to lower travel position of the grinding ground.
  • the grinding soil 6 with the grinding wall 5 edges edged a gap 41, through which the comminuted regrind passes, due to centrifugal forces, into the likewise annularly extending discharge channel 42, offset in cross section radially outwards and downwards.
  • the material to be ground is transported by the oscillating movement to a discharge area 43 and finally to an outlet 44.
  • the adjustment of the ground floor 6 can be done by means of a bidirectional lifting device 45, in the example of a pneumatic cylinder-piston unit by means of selective pressurization of an upper or lower pressure chamber 46, 47.
  • the pivot bearing 35 is the upper side connected to a base plate 51 of the milling unit 4, which forms the basis for said cylinder-piston unit.
  • the guided therein piston 45 ' is rigidly supported at its remote cross section to achieve a possible tilt-free adjustment relative to the housing of the milling unit and the grinding ground.
  • Fig. 1 also shows that a gap sufficient for the lateral movement of the grinding element (also with regard to the grinding material present) remains between the upper side of the grinding stone 10 and the underside of the grinding cover 7 inserted into the guide element 21 (see distance A).
  • the grinding gaps formed are kept bounded in parallel, which has an advantageous effect on the achievable particle size and equalization of the particle size during the grinding operation.
  • the sliding block 10 is not excited to jump or tilting due to the comparatively low-play sliding guide 12, but only with respect to the swing plane S parallel vibrations.
  • an eccentric counterweight 48 In order to achieve a mass balance with respect to the grinding unit excited eccentrically to torsional vibrations, an eccentric counterweight 48, the contour of which is on an eccentric longitudinal section of the drive eccentric 30 Fig. 4 can be seen, postponed and can be secured in an adjustable circumferential position with a screw 49.
  • the grinding unit 4 also comprises a cooling device acting on the grinding wall 5, which in the exemplary embodiment has an outside on the grinding wall 5 has immediately adjacent cooling channel 50.
  • a coolant such as, for example, water, which is passed through inlets and outlets, not shown in the drawing, so that in particular in connection with an external cooling unit with a control or regulation a targeted temperature control is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Seats For Vehicles (AREA)
  • Chairs Characterized By Structure (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP07803188A 2006-09-08 2007-09-04 Schwingmühle mit gleitführung Active EP2063993B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006042824 2006-09-08
DE102007017131A DE102007017131A1 (de) 2006-09-08 2007-04-11 Schwingmühle mit Gleitführung
PCT/EP2007/059208 WO2008028897A1 (de) 2006-09-08 2007-09-04 Schwingmühle mit gleitführung

Publications (2)

Publication Number Publication Date
EP2063993A1 EP2063993A1 (de) 2009-06-03
EP2063993B1 true EP2063993B1 (de) 2010-03-31

Family

ID=39105204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07803188A Active EP2063993B1 (de) 2006-09-08 2007-09-04 Schwingmühle mit gleitführung

Country Status (6)

Country Link
EP (1) EP2063993B1 (zh)
CN (1) CN101553316B (zh)
AT (1) ATE462497T1 (zh)
AU (1) AU2007293868B2 (zh)
DE (2) DE102007017131A1 (zh)
WO (1) WO2008028897A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008035009A1 (de) 2007-09-14 2009-05-20 PFAFF AQS GmbH automatische Qualitätskontrollsysteme Schwingmühle
DE102008035008A1 (de) 2007-09-14 2009-04-30 PFAFF AQS GmbH automatische Qualitätskontrollsysteme Schwingmühle und Reinigungsverfahren für Schwingmühle
CN106733061A (zh) * 2017-03-15 2017-05-31 浙江通宝表面处理设备科技有限公司 一种用于振磨机的降噪机构
CN107127035B (zh) * 2017-06-12 2022-05-27 东北大学 一种立式双通道双机自同步振动惯性破碎机及参数确定方法
US10518269B2 (en) 2017-10-13 2019-12-31 SPEX SamplePrep, LLC Grinding mill with securing frame

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2168093A (en) * 1936-08-27 1939-08-01 Sullivan Machinery Co Size-reducing mill
CH509102A (de) * 1969-06-13 1971-06-30 Brehm Dr Ingbureau Ag Verfahren und Einrichtung zum Vermahlen einer Feststoff-Flüssigkeits-Suspension mittels Schwingmühle
DE2218318C2 (de) * 1972-04-15 1984-10-04 Gottfried 4500 Osnabrück Herzog Schwingmühle

Also Published As

Publication number Publication date
CN101553316B (zh) 2012-06-27
DE502007003348D1 (de) 2010-05-12
CN101553316A (zh) 2009-10-07
DE102007017131A1 (de) 2008-03-27
WO2008028897A1 (de) 2008-03-13
AU2007293868A1 (en) 2008-03-13
ATE462497T1 (de) 2010-04-15
AU2007293868B2 (en) 2011-04-21
EP2063993A1 (de) 2009-06-03

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