EP0365814B1 - Procédé et dispositif pour mélanger matériaux en vrac pulvérulent jusqu'à granulée - Google Patents

Procédé et dispositif pour mélanger matériaux en vrac pulvérulent jusqu'à granulée Download PDF

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Publication number
EP0365814B1
EP0365814B1 EP89116940A EP89116940A EP0365814B1 EP 0365814 B1 EP0365814 B1 EP 0365814B1 EP 89116940 A EP89116940 A EP 89116940A EP 89116940 A EP89116940 A EP 89116940A EP 0365814 B1 EP0365814 B1 EP 0365814B1
Authority
EP
European Patent Office
Prior art keywords
mixing
mixing vessel
starting position
pivoted
bulk material
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
EP89116940A
Other languages
German (de)
English (en)
Other versions
EP0365814A1 (fr
Inventor
Michael Derksen
Joachim Domke
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.)
Dr Herfeld GmbH and Co KG
Original Assignee
Dr Herfeld GmbH and Co KG
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 Dr Herfeld GmbH and Co KG filed Critical Dr Herfeld GmbH and Co KG
Publication of EP0365814A1 publication Critical patent/EP0365814A1/fr
Application granted granted Critical
Publication of EP0365814B1 publication Critical patent/EP0365814B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/808—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/35—Mixing after turning the mixing vessel upside down
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/321—Disposition of the drive
    • B01F35/3213—Disposition of the drive at the lower side of the axis, e.g. driving the stirrer from the bottom of a receptacle

Definitions

  • EP-A-225 495 discloses a mixing device with a mixing container which can be assembled from two container parts and which is pivoted from a vertical starting position about a horizontal pivot axis through 180 ° into its mixing position and, after the mixing process has ended, is pivoted back again through 180 ° into its starting position can.
  • the special feature of this known mixing device is seen in the fact that a drivable mixing tool can be releasably coupled via its hub to the drive shaft of a drive motor, the first, transportable container part also carrying the lid-like second container part together with the mixing tool in the transport state.
  • the invention has for its object to develop a method according to the preamble of claim 1 and a mixing device according to the preamble of claim 5 so that on the one hand the throughput of the mixing device is further increased, but on the other hand the mixing container when swiveling back from the mixing position, the starting position with a large Precision achieved (which is crucial for the perfect functioning of the mixing device, especially for connecting and disconnecting the two mixing container parts).
  • the mixing device 1 also contains a stationary second mixing container part 4, which is held on a pivot drive 5 and can thus be pivoted about a horizontal pivot axis 6, as will be explained in detail later.
  • Mixing tools 7 are arranged in the bowl-shaped second mixing container part 4, which are also known per se, and can be driven in rotation by a separate drive unit 8 about the container axis 9 vertical in the starting position of the mixing device 1.
  • the first mixing container part 2 filled with a bulk material batch is moved under the second mixing container part 4 which is open in the starting position in such a way that the vertical central axes of both mixing container parts 2, 4 coincide with the container axis 9, the first mixing container part 2 still being supported on the moving pallet 3 which, for the purpose of aligning the first, now lower, mixing container part 2 with respect to the now upper, second mixing container part 4, is received in a kind of fork 10 of a columnar frame 11 carrying the swivel drive 5 and the second mixing container part 4.
  • the now lower first mixing container part 2 is lifted off the driving pallet 3 and pressed with the edge of its upper filling end 2a 'against the outer edge 4a' of the open end 4a now pointing downwards from the second mixing container part 4.
  • the first mixing container part 2 is gripped by suitable clamping devices 12 and firmly clamped to the second mixing container section 4, so that a single mixing container with a vertical container axis 9 results.
  • the clamping devices 12 can be designed in a manner known per se, actuated (for example by pressure medium drives) and distributed and attached over the circumference of the second mixing container part 4.
  • the swivel drive 5 serves to swivel the mixing container from the mixing container parts 2 and 4 clamped together from the vertical-axis starting position illustrated in FIGS. 1 and 2 by 180 ° about the horizontal pivot axis 6 into the mixing position illustrated in FIG. 3, in which the second mixing container part 4 then the container bottom and the first mixing container part 2 form a kind of cover for the mixing container. Furthermore, with the help of the swivel drive 5, the mixing container (2, 4) is swiveled back into its vertical-axis starting position after the mixing process.
  • the swivel drive 5 contains a drive motor 13 which is designed in the form of a swivel gear motor and is designed as a brake motor.
  • this drive motor 13 can be switched between two speed ranges that are kept so large that the mixing container (2, 4) swivels back into the stable starting position (FIGS. 1, 2 and 6) with two different, predetermined tilting speeds can work. These two tilting speeds are selected in such a way that when the mixing container swings back with an increased first tilting speed from the mixing position (FIG. 3), it can initially be pivoted beyond the starting position into an intermediate position (FIGS. 4 and 5) in which the mixing container (2 , 4) lingers for about 4-6 seconds, in particular about 5 seconds, and only from this intermediate position (FIG.
  • the mixing container (2, 4) is in its vertical-axis starting position, in which the whole bulk 14 is still in the lower first mixing container part 2.
  • the mixing container (2, 4) is pivoted through 180 ° about the horizontal axis 6 into the mixing position in which the bulk material charge 14 is supported on the second mixing container part 4, which now forms the container base, and thereby by the rotating mixing tools 7 (FIG. 1 ) is mixed thoroughly.
  • the mixing container (2, 4) is then pivoted back from the mixing position shown in FIG. 3 about the horizontal axis 6 with the aid of the swivel drive motor 13 explained above at two different tilting speeds into the starting position by the mixing container (2, 4) according to Arrow 15 by a predetermined angle (angle ⁇ in FIG. 5) beyond the vertical starting position (FIG. 4) into the intermediate position according to FIG. 5 and only from there is pivoted back into the vertical-axis starting position according to FIG. 6 (arrow 15a).
  • a predetermined angle angle ⁇ in FIG. 5
  • the container axis 9 forms with the vertical 16 an angle ⁇ (angular dimension) which should be sufficiently larger than the angle ⁇ which the surface 14a of the bulk material batch 14 forms with the natural slope of the mixed bulk material relative to the vertical, as indicated in Figure 4.
  • the upper portions of the bulk material batch 14 slide into a position due to the natural bulk material in which the surface 14a of the bulk material batch 14 runs essentially parallel to a plane containing the upper filling end 2a 'of the first mixing container part 2, as shown in FIGS. 5 and 6 - after adjustment of the bulk material fill - and in comparison with the as yet unadjusted bulk material fill or surface 14a 'of the bulk material load 14 according to FIG. 4.
  • the angular dimension ⁇ for the intermediate position can be selected in the range between approximately 35 and 55 °, preferably approximately 45 °, in adaptation to the natural slope angle of the respective bulk material.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (7)

1. Procédé de mélange de matières en vrac pulvérulentes à granulaires, suivant lequel
a) une charge (14) de matières en vrac à mélanger est déversée dans une première partie (2) d'une cuve mélangeuse transportable et amenée sous une seconde partie stationnaire (4) de la cuve dans laquelle des outils mélangeurs (7) pouvant être entraînés en rotation sont disposés,
b) les deux parties (2, 4) de la cuve sont fixées l'une à l'autre pour former une unique cuve située à une position initiale dans laquelle leur axe commun (9) est vertical, puis cette cuve mélangeuse subit un basculement de 180° pour être mise à sa position de mélange dans laquelle la charge (14) de matière en vrac subit un mélange intensif au moyen des outils mélangeurs (7),
c) à la fin de ce mélange, la cuve subit un basculement vers l'arrière pour être remise à la position initiale à axe vertical et, au cours de ce basculement vers l'arrière, la cuve est tout d'abord basculée à une position intermédiaire située au-delà de la position initiale suivant un angle prédéterminé (α) et n'est remise par basculement vers l'arrière à la position initiale à axe vertical qu'à partir de cette position intermédiaire, cet angle (α) étant supérieur à l'angle (β) que la surface de la charge de matière en vrac inscrit avec la verticale sous l'angle naturel de repos de la matière particulière en vrac,
d) les deux parties (2, 4) de la cuve mélangeuse sont ensuite libérées l'une de l'autre et la première partie (2) de la cuve, dans laquelle se trouve la charge (14) de matière en vrac mélangée, est transportée à un lieu d'utilisation,
caractérisé en ce que
e) lors de son basculement vers l'arrière de la position de mélange jusqu'à la position intermédiaire, la cuve mélangeuse est tout d'abord basculée à une première vitesse supérieure, puis, à partir de cette position intermédiaire, elle est ramenée par basculement à la position initiale à une seconde vitesse inférieure.
2. Procédé selon la revendication 1, caractérisé en ce que la cuve mélangeuse demeure suffisamment longtemps à la position intermédiaire pour que les fractions supérieures de la charge de matière en vrac placées dans la section supérieure de la première partie de la cuve glissent à une position à laquelle la surface de cette charge de matière en vrac est sensiblement parallèle à un plan par lequel passe l'extrémité supérieure ouverte de la première partie de la cuve.
3. Procédé selon la revendication 2, caractérisé en ce que la cuve mélangeuse demeure à la position intermédiaire pendant environ 2 à 8 secondes, de préférence environ 4 à 6 secondes.
4. Procédé selon la revendication 1, caractérisé en ce que l'angle (α) inscrit entre la position intermédiaire et la position initiale de la cuve est compris entre 35 et 55° et il est de préférence d'environ 45°.
5. Dispositif de mélange de matières en vrac pulvérulentes à granulaires, comprenant
a) une première partie transportable (2) de cuve mélangeuse comportant une extrémité supérieure ouverte de chargement (2a),
b) une seconde partie de cuve (4) montée en position fixe, supportée pivotante autour d'un axe horizontal (6), logeant des outils mélangeurs (7) qui peuvent être entraînés en rotation et pouvant être fixée à la première partie de la cuve (2) lorsqu'elle est à une position initiale dans laquelle l'axe commun (9) est vertical, afin de former une unique cuve mélangeuse,
c) une commande de basculement (5) qui est destinée à faire pivoter la cuve mélangeuse autour de l'axe horizontal de basculement (6) d'environ 180° de la position initiale à une position de mélange dans laquelle la seconde partie (4) de la cuve forme le fond de cette dernière et la première partie (2) en forme un couvercle en dôme,
caractérisé en ce que
d) la commande de basculement (5) est réalisée de manière à pouvoir passer de l'une à l'autre de deux vitesses pour faire basculer vers l'arrière la cuve mélangeuse (2, 4) et la remettre à la position initiale, la cuve mélangeuse subissant alors tout d'abord un basculement à une première vitesse supérieure pour atteindre au-delà de la position initiale une position intermédiaire et, de là, subissant un basculement en sens opposé pour revenir à la position initiale à une seconde vitesse inférieure.
6. Dispositif selon la revendication 5, caractérisé en ce que la commande de basculement (5) comprend un moteur d'entraînement (13) qui peut passer de l'une à l'autre de deux vitesses de rotation adaptées aux deux vitesses de basculement et qui est conformé en moto-frein.
7. Dispositif selon la revendication 6, caractérisé en ce que des interrupteurs déterminés de proximité de fin de course (17) sont prévus pour changer la vitesse du moteur d'entraînement (13) pour la mise en position intermédiaire et en position initiale de la cuve mélangeuse (2, 4).
EP89116940A 1988-10-24 1989-09-13 Procédé et dispositif pour mélanger matériaux en vrac pulvérulent jusqu'à granulée Expired - Lifetime EP0365814B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836216A DE3836216A1 (de) 1988-10-24 1988-10-24 Verfahren und vorrichtung zum mischen von pulverfoermigen bis koernigen schuettguetern
DE3836216 1988-10-24

Publications (2)

Publication Number Publication Date
EP0365814A1 EP0365814A1 (fr) 1990-05-02
EP0365814B1 true EP0365814B1 (fr) 1992-03-04

Family

ID=6365816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116940A Expired - Lifetime EP0365814B1 (fr) 1988-10-24 1989-09-13 Procédé et dispositif pour mélanger matériaux en vrac pulvérulent jusqu'à granulée

Country Status (4)

Country Link
US (1) US4957373A (fr)
EP (1) EP0365814B1 (fr)
DE (2) DE3836216A1 (fr)
ES (1) ES2029547T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235498A1 (de) * 1992-10-21 1994-04-28 Herfeld Gmbh & Co Kg Dr Mischvorrichtung

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DE4104399C2 (de) * 1991-02-14 1995-06-29 Ruberg Mischtechnik Kg Mischer
DE4335285A1 (de) * 1993-10-15 1995-04-20 Herfeld Gmbh & Co Kg Dr Mischvorrichtung
SE9400335D0 (sv) * 1994-02-02 1994-02-02 Astra Ab Powder mixing
US5549384A (en) * 1995-05-15 1996-08-27 Reynolds; Augustus T. Mixer with helically extending blades
US5516207A (en) * 1995-09-22 1996-05-14 Haicht; Helmuet Method for blending dry flowable materials
US5911504A (en) * 1996-01-18 1999-06-15 Schindlegger, Jr.; Walter Stirring device for a personal beverage container
DE29600833U1 (de) * 1996-01-18 1996-05-30 Schindlegger jun., Walter, Seitenstetten Rühreinrichtung
US5847294A (en) * 1996-04-09 1998-12-08 Amherst Process Instruments, Inc. Apparatus for determining powder flowability
US5865538A (en) * 1997-05-05 1999-02-02 Readco Manufacturing, Inc. Containerized batch mixer
US6765082B2 (en) * 1998-12-22 2004-07-20 Bayer Aktiengesellschaft Method for producing highly-branched glycidol-based polyols
WO2001060507A1 (fr) * 2000-02-17 2001-08-23 Astrazeneca Uk Limited Appareil et procede de melange
US6595680B2 (en) * 2000-02-24 2003-07-22 Kubota Corporation Food mixing apparatus
US6331070B1 (en) * 2000-10-30 2001-12-18 Reliance Industries, Inc. Process and apparatus for particle size reduction and homogeneous blending of ingredients in a fluidized change can mixer
DE10103260A1 (de) * 2001-01-25 2002-08-22 Thyssen Henschel Industrietech Druckentlastungssystem für Mischerbehälter, insbesondere zylindrische Containermischer für pulver-, grieß- und/oder granulatförmige Stoffe
US6802641B2 (en) * 2002-12-19 2004-10-12 Spraylat Corporation, Inc. Invertible mixing system with angled blade assembly and method for mixing powders with such system
DE20309987U1 (de) 2003-06-27 2003-08-28 Sadaana, Hichem, 59846 Sundern Mischer
US7325969B2 (en) * 2004-07-08 2008-02-05 Glatt Systemtechnik Gmbh Container mixer
DE202009011685U1 (de) * 2009-08-28 2009-12-03 Schleinzer, Werner Vorrichtung zur Verarbeitung von Lebensmitteln
JP5484849B2 (ja) * 2009-09-30 2014-05-07 シスメックス株式会社 血液試料処理装置及び血液試料処理方法
SI2465780T1 (sl) * 2010-12-16 2013-10-30 Inversiones Hiki6, S.L. Mobilni obrat za doziranje, mešanje in embaliranje
US9924838B2 (en) * 2014-07-03 2018-03-27 Sharkninja Operations Llc Food processing apparatus and method
CA2956573A1 (fr) * 2014-07-30 2016-02-04 North American Robotics Corporation Systeme et procede de traitement automatique d'aliments
US10624499B2 (en) 2014-07-30 2020-04-21 North American Robotics Corporation Systems and methods for pressure control in automated blending devices
US9629503B2 (en) * 2014-07-30 2017-04-25 North American Robotics Corporation Blending container for use with blending apparatus
US9789453B2 (en) 2015-11-11 2017-10-17 Tomzi International Ltd Pivoting blender
CN106422909A (zh) * 2016-10-14 2017-02-22 王爵崇 可换桶体混合机的提升传动装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235498A1 (de) * 1992-10-21 1994-04-28 Herfeld Gmbh & Co Kg Dr Mischvorrichtung

Also Published As

Publication number Publication date
US4957373A (en) 1990-09-18
EP0365814A1 (fr) 1990-05-02
DE58900920D1 (de) 1992-04-09
DE3836216A1 (de) 1990-04-26
ES2029547T3 (es) 1992-08-16

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