EP0200003A2 - Mélangeur avec un moulin à pointes - Google Patents

Mélangeur avec un moulin à pointes Download PDF

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Publication number
EP0200003A2
EP0200003A2 EP86104366A EP86104366A EP0200003A2 EP 0200003 A2 EP0200003 A2 EP 0200003A2 EP 86104366 A EP86104366 A EP 86104366A EP 86104366 A EP86104366 A EP 86104366A EP 0200003 A2 EP0200003 A2 EP 0200003A2
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
mixer
pins
container
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
EP86104366A
Other languages
German (de)
English (en)
Other versions
EP0200003A3 (en
EP0200003B1 (fr
Inventor
Eberhard Lipp
Hans Wetzel
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.)
Draiswerke GmbH
Original Assignee
Draiswerke GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6269329&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0200003(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Draiswerke GmbH filed Critical Draiswerke GmbH
Publication of EP0200003A2 publication Critical patent/EP0200003A2/fr
Publication of EP0200003A3 publication Critical patent/EP0200003A3/de
Application granted granted Critical
Publication of EP0200003B1 publication Critical patent/EP0200003B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • 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
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/833—Devices with several tools rotating about different axis in the same 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
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
    • B01F33/83612—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by crushing or breaking

Definitions

  • the invention relates to a pin mill according to the preamble of claim 1.
  • Pin mills of this type have an annular stator which is provided with cylindrical pins arranged parallel to one another.
  • a rotor in the form of a disk is arranged inside the stator, on the outer circumference of which a number of cylindrical pins are arranged which are arranged parallel to the stator pins and pass the stator pins leaving a small gap.
  • the rotor disc is driven at high speed by a motor located outside the mixer tank.
  • the rotor and stator are spaced from the inside of the wall of the container.
  • the mixing tools of the mixer can be designed and arranged such that they slide at least partially through the space between the rotor and stator on the one hand and the container wall on the other hand, so that the largest possible part of the container is axially swept by the mixing tools. This measure therefore serves to prevent dead zones.
  • the pin mills are used in particular for the defined distribution of viscous, ie flowable materials, since a shear gradient is generated in the gap between the rotor pins and the stator pins.
  • the invention has for its object to develop a pin mill of the generic type so that an improvement in the grinding result is achieved without there being a significant increase in drive power.
  • the configuration according to the invention allows particularly optimized conveying effects to be achieved.
  • the largely conventional mixer shown in the drawing has a horizontal, stationary, cylindrical container 1, which is closed at the end and held at the same time by side walls 2, 3 acting as stands. On the side walls 2, 3, bearing blocks 4 are fastened, in which a shaft 5 of a mixing mechanism 6, which is arranged concentrically to the container 1, is mounted. It is driven by a drive motor 7 via a V-belt drive 8 and a gear 9.
  • the mixing mechanism 6 has mixing tools 10, which are designed in the form of blades and are held by means of mixing tool carriers 11 which are attached to the shaft 5 and project radially therefrom.
  • the mixing tools lo themselves are located in the vicinity of the inner wall 12 of the container 1.
  • a material inlet 13 On the top of the container 1, a material inlet 13 is arranged; a material outlet 14 is provided on the underside.
  • the mixer is operated in batches as a so-called turbulent mixer, i.e. it is a throwing mixer in which the individual mix particles are thrown up and return to a mix bed on a parabolic throw path.
  • a so-called pin mill 15 is installed in the wall 12 of the container 1, which is described in detail below: On the outside of the wall 12 of the container 1, specifically in the area below the shaft 5 (see FIG. 2), there is a flange bearing 16 attached to which a motor 17 is flanged. A coupling 18 connects the output shaft of the motor 17 to a drive shaft 19 of the pin mill 15. This drive shaft 19 passes through the wall 12.
  • the pin mill 15 also has two support rods 2o serving as stator carriers, which also pass through the wall 12, and which extend in a radial plane are arranged to the shaft 5 so that they represent only a slight obstacle for mixing tools lo, as can be seen in particular from FIG.
  • a stator 22 is attached to the two support rods 2o, which consists of a ring 23 and pins 24.
  • the pins 24 extend parallel to the axis 21 and are arranged on a circular ring.
  • the axis 21 also intersects the axis 25 of the shaft 5 at a right angle, as can be seen in FIG. 2.
  • the width of the ring 23 is only so large that it can be attached to the support rods 2o, and as is otherwise necessary for design reasons.
  • it has a hub 27, which is connected in a rotationally fixed manner to the drive shaft 19 and on which there is approximately radial outwardly extending wings 28 are attached.
  • These wings 28 can have various configurations.
  • a wing 28 ' is designed as a simple, elongated, rectangular profile, which is arranged radially to the axis 21 and exerts purely tangential forces on the individual particles of the mixed material.
  • a wing 28 ′′ can be designed such that its radially outer end 29 runs in relation to the direction of rotation 30 of the drive shaft 19, that is to say exerts a combined radial and tangential acceleration on the mix. Finally, in the case of a wing 28 ′′ ′′, at least the outer end 29 ′ can still be set at an angle, so that it is guided past the pins 24 in the manner of a pulling cut.
  • the pins 24 have a square cross section.
  • the cross-sectional shape itself is not significant; however, the edge 31 on each pin 24 has some significance, which is assigned to a corresponding cutting edge 32 at the radially outer end 29 or 29 'of the wings 28. A certain cutting effect thus takes place between the respective edge 31 and the corresponding cutting edge 32 - even if there is a gap 33 of 1 to 3 mm width between the cutting edge 32 and the edge 31.
  • the rotor 26 of the pin mill 15 is driven at a speed of 15oo to 3ooo rpm.
  • the container 1 In normal operation, the container 1 is about 50% to 70% of its volume filled with mixed material. It is mixed turbulently by the mixer and loosened overall and thrown through the mixing container.
  • the vanes 28 of the rotor 26 drive individual mixed material particles through the pins 24 of the stator 22 at high speed.
  • the mixed material reaches the vanes 28 from the inside of the container 1; but it also reaches the wings by means of the mixing tools 10 from the area between the wall 12 of the container 1 and the stator 22. This happens in particular because the mixing tools lo almost completely cover the area between the stator rotor on the one hand and wall 12 on the other. Only the space covered by the two support rods 20 and the drive shaft 19 is not covered.
  • the use of the pin mill 15 is particularly important when a powdery or pourable material is to be mixed with relatively small amounts of liquid in the mixer, so that the liquid is only intended to wet the individual particles of the mixed material. Agglomerates form here on a large scale and have to be dissolved again.
  • the supply of such a liquid can, for example done directly into the area of the pin mill by means of a liquid nozzle 34. Such uses and applications are generally known for pin mills.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Crushing And Pulverization Processes (AREA)
EP86104366A 1985-04-27 1986-03-29 Mélangeur avec un moulin à pointes Expired - Lifetime EP0200003B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3515318 1985-04-27
DE19853515318 DE3515318A1 (de) 1985-04-27 1985-04-27 Stiftmuehle fuer mischer

Publications (3)

Publication Number Publication Date
EP0200003A2 true EP0200003A2 (fr) 1986-11-05
EP0200003A3 EP0200003A3 (en) 1989-01-25
EP0200003B1 EP0200003B1 (fr) 1990-06-13

Family

ID=6269329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104366A Expired - Lifetime EP0200003B1 (fr) 1985-04-27 1986-03-29 Mélangeur avec un moulin à pointes

Country Status (4)

Country Link
US (1) US4848919A (fr)
EP (1) EP0200003B1 (fr)
JP (1) JPH06104187B2 (fr)
DE (2) DE3515318A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304604A3 (en) * 1987-08-28 1989-06-07 Gebr. Lodige Maschinenbau Gesellschaft Mbh Mixer with stirrer and grinder
EP0740953A1 (fr) * 1995-05-02 1996-11-06 LIPP Mischtechnik GmbH Dispositif pour le broyage et le mixage des masses
EP0836880A1 (fr) * 1996-10-16 1998-04-22 Clariant GmbH Mélangeur pour le traitement en continu de matériaux coulants
DE10012072B4 (de) * 2000-03-14 2015-08-27 Hermann Linden Gmbh & Co. Kg Inline Mischer
DE102017010910A1 (de) 2017-11-23 2019-05-23 Technische Universität Bergakademie Freiberg Stiftmühle mit Scheiben mit Stiften
CN110773063A (zh) * 2019-11-06 2020-02-11 浙江长兴振明高科耐火材料有限公司 一种耐火材料生产用原料制备装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124984C2 (de) * 1991-07-27 1995-04-27 Babcock Bsh Ag Verwendung einer Misch-, Granulier- und Trocknungsvorrichtung
US5297867A (en) * 1993-03-08 1994-03-29 Holman Lanny D Mixer apparatus
US5791779A (en) * 1996-07-09 1998-08-11 Sandmold Systems, Inc. Mixing assembly for continuous mixer
DE19706364C2 (de) * 1997-02-19 1999-06-17 Loedige Maschbau Gmbh Geb Mischwerkzeug
IT1295389B1 (it) * 1997-10-23 1999-05-12 Nuova Maip Macchine Agric Macchina gramolatrice di pasta di oleaginose quali olive e simili con una pluralita' di alberi di movimentazione della pasta stessa
RU2133144C1 (ru) * 1997-10-28 1999-07-20 Муниципальное предприятие "РЕМСТРОЙБЛАГОУСТРОЙСТВО" Перемешивающее устройство
DE19901305A1 (de) 1999-01-15 2000-07-20 Starck H C Gmbh Co Kg Verfahren zur Herstellung von Hartmetallmischungen
US10406710B2 (en) * 2015-05-01 2019-09-10 Urschel Laboratories, Inc. Machines and methods for cutting products to produce reduced-size products therefrom

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE218716C (fr) *
DE967436C (de) * 1951-03-03 1957-11-14 Hans Kotthoff Kreiselmischer mit den Mischkreisel umgebendem Widerstands-Elementenkranz
US3027102A (en) * 1957-12-20 1962-03-27 Lodige Wilhelm Apparatus for mixing and comminuting
DE1102534B (de) * 1957-12-20 1961-03-16 Fritz Loedige Vorrichtung zum Mischen, Zerkleinern und gegebenenfalls Anfeuchten von pulverfoermigen, feinkoernigen oder faserigen Stoffen
DE1176614B (de) * 1960-01-16 1964-08-27 Karg G M B H Dr Mischturbine
DE1276986B (de) * 1962-03-10 1968-09-05 Fritz Loedige Pflugscharaehnliches Mischwerkzeug
DE1217755B (de) * 1962-08-04 1966-05-26 Draiswerke Ges Mit Beschraenkt Mahlvorrichtung
US3251389A (en) * 1964-09-17 1966-05-17 Joe R Urschel Machine for and method of comminuting a product
DE1507889A1 (de) * 1965-04-26 1970-02-12 Draiswerke Gmbh Verfahren zum Betrieb von Mischmaschinen sowie zugehoerige Mischmaschine
US3522934A (en) * 1968-08-08 1970-08-04 Ulrich Walter Method and apparatus for producing a homogeneous mixture of granular and viscous substances
FR2028238A1 (en) * 1969-01-13 1970-10-09 Mambretti Lauro Rotating mill for recycling mixer
US3823880A (en) * 1972-10-24 1974-07-16 J Urschel Machine for reducing the sound level of its operation
DK133269C (da) * 1974-03-26 1976-09-20 Rotostat Is Blandeaggregat til blanding og eller bearbejdning af flydendematerialer
US3974969A (en) * 1974-08-01 1976-08-17 Resinoid Engineering Corporation High speed chopper for precision mixers
DE2614730C2 (de) * 1976-04-06 1985-04-04 Pallmann KG Maschinenfabrik, 6660 Zweibrücken Vorrichtung zum kontinuierlichen Agglomerieren von thermoplastischen Kunststoffabfällen, insbesondere von Kunststoff-Folien
US4235382A (en) * 1979-02-26 1980-11-25 Rader Companies Inc. Method and apparatus for rechipping wood chips
DE3037332C2 (de) * 1980-10-02 1983-09-08 Draiswerke Gmbh, 6800 Mannheim Mischer für Schüttgut und Suspensionen, insbesondere faserige Suspensionen
US4610397A (en) * 1983-10-27 1986-09-09 Urschel Laboratories Incorporated Comminuting equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304604A3 (en) * 1987-08-28 1989-06-07 Gebr. Lodige Maschinenbau Gesellschaft Mbh Mixer with stirrer and grinder
EP0740953A1 (fr) * 1995-05-02 1996-11-06 LIPP Mischtechnik GmbH Dispositif pour le broyage et le mixage des masses
EP0836880A1 (fr) * 1996-10-16 1998-04-22 Clariant GmbH Mélangeur pour le traitement en continu de matériaux coulants
DE10012072B4 (de) * 2000-03-14 2015-08-27 Hermann Linden Gmbh & Co. Kg Inline Mischer
DE102017010910A1 (de) 2017-11-23 2019-05-23 Technische Universität Bergakademie Freiberg Stiftmühle mit Scheiben mit Stiften
WO2019101907A1 (fr) 2017-11-23 2019-05-31 Technische Universität Bergakademie Freiberg Broyeur à broches doté de disques munis de broches
CN110773063A (zh) * 2019-11-06 2020-02-11 浙江长兴振明高科耐火材料有限公司 一种耐火材料生产用原料制备装置

Also Published As

Publication number Publication date
JPS61249533A (ja) 1986-11-06
JPH06104187B2 (ja) 1994-12-21
US4848919A (en) 1989-07-18
EP0200003A3 (en) 1989-01-25
DE3671845D1 (de) 1990-07-19
DE3515318A1 (de) 1986-10-30
EP0200003B1 (fr) 1990-06-13

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