EP1172149A1 - Broyeur à contre-jets à lit fluidisé - Google Patents

Broyeur à contre-jets à lit fluidisé Download PDF

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Publication number
EP1172149A1
EP1172149A1 EP01114088A EP01114088A EP1172149A1 EP 1172149 A1 EP1172149 A1 EP 1172149A1 EP 01114088 A EP01114088 A EP 01114088A EP 01114088 A EP01114088 A EP 01114088A EP 1172149 A1 EP1172149 A1 EP 1172149A1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding container
jet mill
structural unit
bed counter
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
EP01114088A
Other languages
German (de)
English (en)
Other versions
EP1172149B1 (fr
Inventor
Georg Dipl.Ing. Ing. Konetzka (Grad.)
Hermann Eder
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.)
Hosokawa Alpine AG
Original Assignee
Hosokawa Alpine 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 Hosokawa Alpine AG filed Critical Hosokawa Alpine AG
Publication of EP1172149A1 publication Critical patent/EP1172149A1/fr
Application granted granted Critical
Publication of EP1172149B1 publication Critical patent/EP1172149B1/fr
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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/06—Jet mills
    • B02C19/068—Jet mills of the fluidised-bed type

Definitions

  • the invention relates to fluidized bed counter-jet mills, which act as classifier mills are trained and relates to the design and arrangement of the components.
  • Fluid bed counter jet mills generally consist of a vertical axis cylindrical grinding container, with jet nozzles in the lower part of the grinding container are provided.
  • the jet nozzles are directed against each other in such a way that the Grinding material is sucked into the jets and with them is accelerated, due to mutual collisions between the Regrind is crushed by impact.
  • the viewing device is in generally designed as a centrifugal classifier, being particles that are finer than the separating grain size are, inside in the rotating paddle wheel of the classifier are transported and separated, whereas particles that are coarser than that Particle size are thrown off the rotating paddle wheel and in Grinding containers remain.
  • Such a classifier mill is e.g. known from DE 33 38 138 C2. It is as Fluid bed jet mill designed with one of internals for guiding the Grinding serving jets free grinding chamber, in the bottom area of a Nozzle with a vertical outlet, both for grinding and for Fluidization of the gas jet in the grinding chamber is arranged and up to such a height completely with the comminuting good is filled that good and gas as a fountain less Speed out of the bed, using this fountain for feeding one provided above the surface of the bed, regardless of Impulse of the operated jet emerging from the floor nozzle serves.
  • the Mouths in a plane perpendicular to the axis of the floor nozzle a circle coaxial to the axis of the floor nozzle are evenly distributed, and whose axes are at a point on the axis of the floor nozzle below the Cut the plane of the nozzle orifices.
  • the viewing device there is arranged in the upper part of the grinding container rotates around a vertical axis.
  • the classifier wheel works on the centrifugal force principle and separates sufficiently finely ground material from the regrind and transfers it a fine material discharge arranged above the classifier wheel Grinding container out. Furthermore, one is above the fines discharge arranged storage and drive device for the rotating classifier wheel available.
  • the object of the invention is therefore to provide a fluid bed counter jet mill To improve the viewing device so that it is easily accessible, simple and can be cleaned completely without great effort.
  • the fluid bed counter jet mill provides a classifier wheel arrangement before, together with the storage and drive device a structural unit forms and is detachably connected to the grinding container.
  • a structural unit forms and is detachably connected to the grinding container.
  • the unit moveable in relation to the grinding container by means of kinematic devices, that the classifier wheel through the fine material discharge upwards from the Grinding container can be removed.
  • the fine material discharge remains with the Grinding container connected.
  • the grinding container is therefore not in a plane between the lower part in the the grinding chamber is located and the upper part in which the viewing device is located is shared and made accessible, but the dividing level is located within the range of the viewing device. This has the advantage that not only the Grinding room is fully accessible, but also the viewing device from both outside and inside is accessible.
  • the classifying wheel can be pivoted through 180 ° be so that the classifier wheel and the grinding container are optimally accessible and can be easily cleaned.
  • the pivoting is achieved by a kinematics, the classifier wheel together with the storage and drive device initially vertically moves above and then by an angle greater than 90 °, preferably rotates up to 180 ° around an axis in the horizontal plane. Ideally, it runs Axis of rotation through the center of mass of the classifier wheel unit, Storage and drive device.
  • This opening principle can be advantageous not only in fluid bed counter-jet mills be, but e.g. also for impact mills with a rotating beater be used.
  • the classifier wheel is functional due to a rotating one Racket mechanism replaced and the container wall transfers at the level of the racket mechanism the circumference of the housing, the internal impact ribs or grinding tracks.
  • the Room with line connection arranged above the rotating racket mechanism serves as a grist inlet.
  • the grinding air ring line is for Distribution of the grinding air to the connections of the individual jet nozzles above the Jet nozzles, preferably arranged at the level of the classifier wheel.
  • This Arrangement avoids contamination of the grinding air ring line Product dusts.
  • grinding air lines are the same Height to the jet nozzles or arranged below, so that it is due to Backflows in the lines for sucking in regrind into the Grinding air ring line has come.
  • the connectors of the flexible are possible according to the invention Hose lines on the grinding air ring line opposite the connectors the nozzles arranged offset.
  • the staggered arrangement is such that when Loosen the fittings on the nozzles, the hoses due to the Align gravity in a vertical position while loosening the loosened ones Swing the connectors away from the nozzles. This will make the nozzle and the nozzle holder on the grinding container is easily accessible for cleaning purposes.
  • the corner weld is in Transition area from cylindrical grinding vessel wall and conical bottom with a flat weld seam on the vertical grinding vessel wall and on the conical wall of the floor.
  • annular one Stop plate welded between the grinding vessel wall and the bottom, which on her inner ring surface has a transition contour with a large radius, on which no material can attach and is easy to clean.
  • FIG. 1 shows a cross section of the fluidized bed counter jet mill according to the invention.
  • Fig.2 shows the unit of classifier wheel, as well as storage and Drive device in the closed state.
  • Fig.3 shows the unit of classifier wheel, as well as storage and Drive device in the open state in the 180 ° position.
  • FIG. 4 shows an opening sequence of the kinematics according to the invention.
  • Fig. 5 shows a view of the offset grinding air connections.
  • FIG 6 shows the stop plate according to the invention.
  • FIG 7 shows the opening principle according to the invention on an impact mill.
  • the classifier wheel 3 forms together with the classifier wheel bearing 4 and the Drive 14 is a structural unit which, by means of a bearing flange 5 via screws 8 is releasably connected to the mill 15.
  • the bearing flange 5 forms one tight seal for the fine material discharge area 1.
  • the bearing flange 5 is about a fit 6 centered relative to the mill housing 7.
  • the grinding air ring line 16 is on the outside of the mill housing 7 at the level of Classifier wheel 3 attached. Are over the circumference of the grinding air ring line 16 a plurality of connecting pieces 17 are arranged, on which elastic pressure hoses 9 are connected.
  • the pressure hoses 9 conduct the via the grinding air ring line 16 Compressed air supplied via connection 21 to each individual jet nozzle 12.
  • the pressure hoses 9 are connected to the additional connecting pieces 10 Jet nozzles 12 releasably connected.
  • the upper connectors 17 are on the circumference arranged offset relative to the lower connecting pieces 10, so that at Loosen the screw connection 13 on the connecting pieces 10 and the pressure hoses 9 due to gravity swivel into a vertical position and the Open the inlet openings to the jet nozzles 12 (see also Fig. 5).
  • Fig. 2 is the structural unit of the bearing flange 5, and bearing 4 - and Drive device 14 can be seen in the closed state.
  • the belt drive 18 connects the drive device 14 to the bearing 4 and translates the speed the drive device 14 to a suitable speed for the classifier wheel.
  • the pivoting device shown in FIG. 3 enables the structural unit to be rotated of classifier wheel 3, as well as bearing 4 and drive device 14 around the Rotation axis 19 through 180 °.
  • the axis of rotation of the classifying wheel 3 is then vertical aligned and the classifier wheel 3 is in an upward open position accessible.
  • the distance L and H of the rotary axis 19 from the center of the Cleaning opening 20 is selected so that the cleaning opening 20 is completely free lies and the interior is easily accessible.
  • the axis of rotation of the swivel device is preferably in or as close as possible to Mass.
  • the rotating working part 26 is included Impact beaters 27 equipped with one on the inner circumference of the grinding containers attached grinding track 28 cooperates.
  • the regrind is added via the inlet 29 into the feed chamber 30, from where the regrind to the Impact bat 27 is distributed.
  • the sealing 31 of the work spaces takes place between the feed space 30 and the grinding space 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Paper (AREA)
  • Crushing And Grinding (AREA)
EP01114088A 2000-07-11 2001-06-09 Broyeur à contre-jets à lit fluidisé Expired - Lifetime EP1172149B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033628 2000-07-11
DE10033628A DE10033628A1 (de) 2000-07-11 2000-07-11 Fliessbett-Gegenstrahlmühle

Publications (2)

Publication Number Publication Date
EP1172149A1 true EP1172149A1 (fr) 2002-01-16
EP1172149B1 EP1172149B1 (fr) 2007-12-26

Family

ID=7648523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01114088A Expired - Lifetime EP1172149B1 (fr) 2000-07-11 2001-06-09 Broyeur à contre-jets à lit fluidisé

Country Status (6)

Country Link
US (1) US6543710B2 (fr)
EP (1) EP1172149B1 (fr)
JP (1) JP4778636B2 (fr)
AT (1) ATE381967T1 (fr)
DE (2) DE10033628A1 (fr)
ES (1) ES2295085T4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007098778A1 (fr) * 2006-02-24 2007-09-07 Vitrabio Gmbh Procédé de fabrication d'un verre poreux et de poudre de verre et matériau de verre destiné a la mise en œuvre de ce procédé

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7449275B2 (en) 2004-09-21 2008-11-11 Kao Corporation Process for preparing toner
JP2006091175A (ja) 2004-09-21 2006-04-06 Kao Corp トナーの製造方法
US7560218B2 (en) 2004-10-01 2009-07-14 Kao Corporation Process for preparing toner
JP4491328B2 (ja) * 2004-10-29 2010-06-30 花王株式会社 トナーの製造方法
US8858699B2 (en) 2006-07-13 2014-10-14 Unimin Corporation Ultra fine nepheline syenite powder and products for using same
US20080040980A1 (en) * 2006-07-13 2008-02-21 Unimin Corporation Method of processing nepheline syenite
US20080015104A1 (en) 2006-07-13 2008-01-17 Unimin Corporation Ultrafine nepheline syenite
US7757976B2 (en) * 2007-02-07 2010-07-20 Unimin Corporation Method of processing nepheline syenite powder to produce an ultra-fine grain size product
BRPI0814106A2 (pt) * 2007-07-09 2015-02-03 Unimin Corp Pó de sienito de nefelina com tamanho de partícula controlado e método de produzir o mesmo
JP5246914B2 (ja) 2007-11-26 2013-07-24 花王株式会社 トナーの製造方法
WO2009128857A1 (fr) 2008-04-17 2009-10-22 Unimin Corporation Poudre formée à partir de matières minérales ou rocheuses avec une distribution de dimension de particules contrôlée pour des films thermiques
DE102008030749B4 (de) * 2008-06-27 2019-03-07 Hosokawa Alpine Ag Mahlvorrichtung mit Mühle als Einbaumodul
US8091817B2 (en) * 2009-12-11 2012-01-10 Flsmidth A/S Milling device
ITMI20120092A1 (it) * 2012-01-26 2013-07-27 Micro Macinazione S A Compositi di inclusione farmaco-carrier preparati con processo di attivazione meccano-chimica mediante mulini a getto di fluido ad alta energia
DE102018008127B4 (de) 2018-10-13 2022-06-09 Hosokawa Alpine Aktiengesellschaft Blaskopf und Verfahren zur Herstellung einer Mehrschichtschlauchfolie
DE102018009632B4 (de) 2018-12-11 2021-12-09 Hosokawa Alpine Aktiengesellschaft Vorrichtung zum Aufwickeln und Wickelwechsel von bahnförmigem Material und ein Verfahren dafür
DE102020006008B3 (de) 2020-10-01 2022-03-31 Hosokawa Alpine Aktiengesellschaft Fließbettgegenstrahlmühle zur Erzeugung feinster Partikel aus Aufgabegut geringer Schüttdichte und Verfahren dafür
CN114011715B (zh) * 2021-12-14 2022-12-06 昆山强威粉体设备有限公司 流化床对撞式气流粉碎机的分级轮负压出料装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140294A1 (de) * 1981-10-10 1983-04-28 Alpine Ag, 8900 Augsburg Verfahren und vorrichtung zum trennen eines gutgemisches in komponenten unterschiedlicher mahlbarkeit
DE3338138A1 (de) * 1983-10-20 1985-05-09 Alpine Ag, 8900 Augsburg Fliessbett-gegenstrahlmuehle
DE4100338A1 (de) * 1991-01-08 1992-07-09 Nied Roland Verfahren zum ermitteln des grades der befuellung eines behaelters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018388A (en) * 1976-05-13 1977-04-19 Andrews Norwood H Jet-type axial pulverizer
DE2641620B2 (de) * 1976-09-16 1978-12-14 Polysius Ag, 4720 Beckum Rollenmühle mit Sichter
JPH074557B2 (ja) * 1990-10-23 1995-01-25 株式会社栗本鐵工所 粉砕媒体を使用した気流粉砕方法
JPH0615193A (ja) * 1992-04-07 1994-01-25 Kyowa Shokuhin:Kk ジェットミル
JP2000140674A (ja) * 1998-11-13 2000-05-23 Iec:Kk 気流式粉砕機
US6398139B1 (en) * 1999-08-23 2002-06-04 Roland Nied Process for fluidized-bed jet milling, device for carrying out this process and unit with such a device for carrying out this process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140294A1 (de) * 1981-10-10 1983-04-28 Alpine Ag, 8900 Augsburg Verfahren und vorrichtung zum trennen eines gutgemisches in komponenten unterschiedlicher mahlbarkeit
DE3338138A1 (de) * 1983-10-20 1985-05-09 Alpine Ag, 8900 Augsburg Fliessbett-gegenstrahlmuehle
DE3338138C2 (de) 1983-10-20 1986-01-16 Alpine Ag, 8900 Augsburg Fließbett-Gegenstrahlmühle
DE4100338A1 (de) * 1991-01-08 1992-07-09 Nied Roland Verfahren zum ermitteln des grades der befuellung eines behaelters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007098778A1 (fr) * 2006-02-24 2007-09-07 Vitrabio Gmbh Procédé de fabrication d'un verre poreux et de poudre de verre et matériau de verre destiné a la mise en œuvre de ce procédé

Also Published As

Publication number Publication date
ES2295085T4 (es) 2008-06-16
ATE381967T1 (de) 2008-01-15
ES2295085T3 (es) 2008-04-16
EP1172149B1 (fr) 2007-12-26
DE10033628A1 (de) 2002-01-24
JP2002035631A (ja) 2002-02-05
DE50113409D1 (de) 2008-02-07
US6543710B2 (en) 2003-04-08
US20020011534A1 (en) 2002-01-31
JP4778636B2 (ja) 2011-09-21

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