EP0617999A1 - Mélangeur avec accouplement magnétique - Google Patents

Mélangeur avec accouplement magnétique Download PDF

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Publication number
EP0617999A1
EP0617999A1 EP94103364A EP94103364A EP0617999A1 EP 0617999 A1 EP0617999 A1 EP 0617999A1 EP 94103364 A EP94103364 A EP 94103364A EP 94103364 A EP94103364 A EP 94103364A EP 0617999 A1 EP0617999 A1 EP 0617999A1
Authority
EP
European Patent Office
Prior art keywords
interior
mixer
output shaft
head
motor
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
EP94103364A
Other languages
German (de)
English (en)
Other versions
EP0617999B1 (fr
Inventor
Peter Illing
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
Application filed by Draiswerke GmbH filed Critical Draiswerke GmbH
Publication of EP0617999A1 publication Critical patent/EP0617999A1/fr
Application granted granted Critical
Publication of EP0617999B1 publication Critical patent/EP0617999B1/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
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
    • B01F33/4534—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements using a rod for supporting the stirring element, e.g. stirrer sliding on a rod or mounted on a rod sliding in a tube

Definitions

  • the invention relates to a mixer according to the preamble of claim 1.
  • Such mixers which are provided with a comminution device, are often used to mix substances, at least some of which are particularly aggressive, hazardous to health or otherwise not environmentally compatible. Basically, there is a risk that such dangerous substances can escape to the outside of the shafts of the shredding devices that pass through the container wall of the mixer or mixing reactor.
  • radial sealing rings single-acting mechanical seals or double-acting mechanical seals have been used, but they have the disadvantage that, in the event of a failure, they no longer prevent the substances in the mixer from escaping to the outside. Even if double-acting mechanical seals are used, if the seal on the atmosphere side fails, the barrier liquid may escape, which itself does not have to be environmentally friendly, which in turn also allows substances treated in the mixer to escape.
  • the invention has for its object to design a mixer of the generic type so that leakage of substances treated in the mixer through the recess that receives the shaft leading to the working head of the shredding device is reliably avoided.
  • the magnetic coupling in connection with the containment shell ensures that the recess in the container wall opens into a closed space, namely the interior of the containment shell, which is completely sealed off from the outside.
  • a sealing liquid is fed into a mechanical seal located in the recess, which flows through the interior of the containment shell and thereby dissipates the heat that is generated by friction and eddy currents, this sealing liquid can simultaneously be used to lubricate the bearing, in which the rotor of the magnetic coupling is mounted.
  • a cylindrical container wall 1 of a mixer or mixing reactor 2 is shown, in the interior 3 of which a rotating drive, not shown, is arranged.
  • a comminution device 4 is attached to the container wall 1, the working head 5 of which is arranged in the interior 3 in order to break up mixed agglomerates there, shear mixed, homogenize or otherwise subject the mixed material to intensive mechanical treatment.
  • Such mixers or mixing reactors are generally known, for example from DE 38 39 671 A1 (corresponding to US Pat. No. 5,018,673).
  • the shredding device 4 has an electric motor 6, which is supported by a supporting frame 7 on a base plate 8, which is attached to the container wall 1.
  • a magnetic coupling 9 is provided between the motor 6 and the working head 5 and is arranged within the supporting frame 7.
  • the magnetic coupling 9 has a pot-shaped drive head 11 which is connected to the output shaft 10 of the motor 6 in a rotationally fixed manner, on the cylindrical inner wall 12 of which permanent magnets 14 are attached concentrically to the common axis 13 of the motor 6, coupling 9 and working head 5, specifically via the inner circumference of the inner wall 12.
  • the working head 5 is rotatably connected to a clutch output shaft 15 which passes through the container wall 1 or the base plate 8. It is on the outside of the mixer 2 in a bearing 16 about the axis 13 freely rotatable.
  • the bearing 16 has a bearing block 17 connected to the base plate 8, which is provided with a ceramic slide bearing shell 18.
  • a bearing sleeve 19 is rotatably mounted, which is rotatably arranged in the shell 18.
  • the ends of the bearing sleeve 19 are also assigned axial bearing rings 20 which are supported against corresponding bearing surfaces 21 of the slide bearing shell 18, as a result of which the output shaft 15 is on the one hand freely rotatable and on the other hand axially immovable in the fixed bearing block 17.
  • pot-shaped rotor 22 is attached in a rotationally fixed manner, on the cylindrical outer wall 22a of which permanent magnets 23 are arranged, which are arranged concentrically to the axis 13 and - based on the direction of the axis 13 - overlapping the permanent magnets 14.
  • These permanent magnets 23 are also distributed over the circumference of the rotor 22. They are each arranged opposite to the permanent magnets 14.
  • an air gap 24 is formed, the extent of which radially to the axis 13 should in principle be as small as possible in order to make the magnetic coupling between the permanent magnets 14 and the permanent magnets 23 as large as possible.
  • a can 25 is provided, the cylindrical wall 26 of which passes through the air gap 24 and whose bottom 27, which is formed integrally with the wall 26, is located between the bottom 28 of the driving head 11 and the bottom 29 of the rotor 22.
  • the containment can 25 is provided with a flange 30 and is screwed to the base plate 8 in a gas-tight and liquid-tight manner by means of a seal 31.
  • the clutch output shaft 15 is sealed in a recess 32 passing through the base plate 8 and the container wall 1 by means of a single-acting mechanical seal 33, which is connected on its side facing the interior 34 of the containment shell 25 to a sealing liquid supply channel 35.
  • the barrier liquid on the one hand prevents the escape of solids from the interior 3 of the mixer 2 into the bearing 16 and even more so outdoors. Insofar as there are liquid or volatile substances in the interior of the mixer 2 and emerge through the mechanical seal 33 into the interior 34, they are absorbed by the sealing liquid and discharged therefrom through a sealing liquid discharge channel 36, which opens out from the interior 34 of the containment shell 25. This interior 34 of the can 25 is therefore completely filled with sealing liquid.
  • At least one transfer channel 37 is provided in the bearing block 17.
  • the barrier liquid can also act as a lubricant in the bearing 16, for which purpose on the one hand the bearing block 17 and on the other hand the slide bearing shell 18 are provided with lubrication channels 38 which are open to the interior 34.
  • the barrier liquid which also acts as a lubricant, does not necessarily have to be oil. It can be the same liquid that is used in the interior 3 of the mixer 2. If this liquid is aggressive, the parts located in the interior 34, including the containment shell 25, must be made of a material that is resistant to this.
  • the sealing liquid supply channel 35 and the sealing liquid discharge channel 36 each have a connection 39, 40 on their outside, to which a sealing liquid supply line 41 and a sealing liquid discharge line 42 are connected.
  • the barrier liquid discharge line 42 leads to a closed container 43, from which in turn the supply line 41 opens.
  • a pump 44 is connected to the feed line. The pumping of the sealing liquid in this closed circuit takes place in the direction of 45.
  • the pressure in this sealing liquid circuit can be adapted to the pressure in the interior 3 of the mixer or mixing reactor 2.
  • the working head 5 has, in a known manner, blades 46 clamped on the end of the clutch output shaft 15 located in the interior 3 of the mixer 2.
  • These knives are known, for example from DE 38 39 671 A1 (corresponding to US Pat. No. 5,018,673).
  • rotor-stator systems can also be provided, in which case the corresponding rotor is coupled to the output shaft 15.
  • Such rotor-stator systems are known for example from EP 0 200 003 A2 (corresponding to US Pat. No. 4,848,919).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
EP94103364A 1993-03-30 1994-03-05 Mélangeur avec accouplement magnétique Expired - Lifetime EP0617999B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4310266A DE4310266A1 (de) 1993-03-30 1993-03-30 Mischer
DE4310266 1993-03-30

Publications (2)

Publication Number Publication Date
EP0617999A1 true EP0617999A1 (fr) 1994-10-05
EP0617999B1 EP0617999B1 (fr) 1996-12-27

Family

ID=6484198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103364A Expired - Lifetime EP0617999B1 (fr) 1993-03-30 1994-03-05 Mélangeur avec accouplement magnétique

Country Status (2)

Country Link
EP (1) EP0617999B1 (fr)
DE (2) DE4310266A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962249A1 (fr) * 1998-06-05 1999-12-08 Mixel Agitateur à entraínement magnétique
EP1023936A1 (fr) * 1999-01-28 2000-08-02 Mixel Agitateur à entraínement magnétique et procédé du réglage du couple limite de transmission d'effort d'un tel agitateur
EP1475566A2 (fr) * 2003-05-07 2004-11-10 Ashland Inc. Méthode et dispositif pour le traitement de carburant à l'aide de couplage magnétique
DE10318599A1 (de) * 2003-04-24 2004-11-11 Mavag Verfahrenstechnik Ag Rührer zum Mischen, Homogenisieren und Dispergieren
US20100260008A1 (en) * 2007-11-12 2010-10-14 Ika-Werke Gmbh & Co. Kg Rotor-stator-device for dispersing or homogenizing
WO2014098746A1 (fr) * 2012-12-21 2014-06-26 Cassandra Oil Technology Ab Réacteur étanche au gaz comportant un moyen d'écrasement rotatif
WO2015140669A1 (fr) * 2014-03-18 2015-09-24 Fuglesangs Subsea As Machine rotative dotée d'un entraînement magnétique étanche
DE102016106363A1 (de) 2015-04-07 2016-10-13 Bradbury Group Italy S.R.L. Apparat zum mischen von unter hochdruck stehendem polyol
CN107333504A (zh) * 2017-05-08 2017-11-10 南宁景曜电子科技有限责任公司 一种农用装置
CN107719617A (zh) * 2017-08-30 2018-02-23 杭州电子科技大学 磁耦合组件及其磁耦合转舵装置
IT201800010289A1 (it) * 2018-11-13 2020-05-13 Tt Italy S P A Testa di miscelazione

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110550710A (zh) * 2019-09-14 2019-12-10 乐绪枝 一种自来水-消毒药剂混合净水装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156913A (en) * 1965-05-28 1969-07-02 Silverson Machines Ltd Improvements in Mixing Devices
US4806020A (en) * 1986-04-21 1989-02-21 Sendai Mechanic Kogyo Kabushiki Kaisha Magnetic rotator
EP0408093A1 (fr) * 1989-07-12 1991-01-16 Fedegari Autoclavi Spa Accouplement magnétique pour la transmission d'un mouvement à travers les parois d'enceintes fermées
EP0433694A1 (fr) * 1989-12-22 1991-06-26 EKATO INDUSTRIEANLAGEN VERWALTUNGSGESELLSCHAFT MBH & CO. Dispositif de mélange
EP0437394A1 (fr) * 1990-01-11 1991-07-17 Societe Generale Pour Les Techniques Nouvelles S.G.N. Ensemble de commande d'agitateur, notamment pour un mélangeur-décanteur équipant une installation de retraitement de combustible nucléaire

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105558A1 (de) * 1981-02-16 1982-09-09 Alfred 7988 Wangen Bolz sen. Zerhackervorrichtung fuer einen konus-schnecken-mischer
DE3445057C2 (de) * 1984-12-11 1994-04-14 Dorr Oliver Deutschland Homogenisierer mit hermetisch verschlossenem Produktraum
DE3534452A1 (de) * 1985-09-27 1987-04-16 Goetze Ag Ruehrwerksdichtung
DE8531064U1 (de) * 1985-11-02 1986-02-13 Ismar GmbH, 5000 Köln Vorrichtung zum Zerkleinern von Feststoffen und zum Mischen verschiedener Stoffe
DE3636404A1 (de) * 1986-10-25 1988-04-28 Richter Chemie Technik Gmbh Magnetkreiselpumpe
DE3712136C1 (de) * 1987-04-10 1988-08-04 Omya Gmbh Zentrifugalkraftsichter
DE3807083A1 (de) * 1988-03-04 1989-09-14 Burgmann Dichtungswerk Feodor Magnetische vorrichtung zur uebertragung von drehkraeften
DE3818890A1 (de) * 1988-06-03 1989-12-07 Ekato Ind Anlagen Verwalt Anordnung zur sicheren abdichtung der lagerung einer rotierenden welle mit zugehoerigem antriebselement
DE3831609A1 (de) * 1988-09-17 1990-03-22 Loedige Maschbau Gmbh Geb Maschine zum behandeln schuettfaehiger, pastoeser und/oder fliessfaehiger gueter mit eingebauter aufschliessvorrichtung
SU1653086A1 (ru) * 1989-06-05 1991-05-30 Украинский Научно-Исследовательский И Конструкторский Институт Химического Машиностроения Магнитна муфта дл привода вертикального герметизированного вала
DE3941444C2 (de) * 1989-12-15 1993-12-23 Klaus Union Armaturen Permanentmagnetantrieb für eine Pumpe, ein Rührwerk oder eine Armatur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156913A (en) * 1965-05-28 1969-07-02 Silverson Machines Ltd Improvements in Mixing Devices
US4806020A (en) * 1986-04-21 1989-02-21 Sendai Mechanic Kogyo Kabushiki Kaisha Magnetic rotator
EP0408093A1 (fr) * 1989-07-12 1991-01-16 Fedegari Autoclavi Spa Accouplement magnétique pour la transmission d'un mouvement à travers les parois d'enceintes fermées
EP0433694A1 (fr) * 1989-12-22 1991-06-26 EKATO INDUSTRIEANLAGEN VERWALTUNGSGESELLSCHAFT MBH & CO. Dispositif de mélange
EP0437394A1 (fr) * 1990-01-11 1991-07-17 Societe Generale Pour Les Techniques Nouvelles S.G.N. Ensemble de commande d'agitateur, notamment pour un mélangeur-décanteur équipant une installation de retraitement de combustible nucléaire

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6206562B1 (en) 1998-01-28 2001-03-27 Mixel Agitator with adjustable magnetic drive coupling
EP0962249A1 (fr) * 1998-06-05 1999-12-08 Mixel Agitateur à entraínement magnétique
FR2779361A1 (fr) * 1998-06-05 1999-12-10 Mixel Agitateur a entrainement magnetique
US6065865A (en) * 1998-06-05 2000-05-23 Mixel Magnetically driven agitator with magnetic rotation detector
EP1023936A1 (fr) * 1999-01-28 2000-08-02 Mixel Agitateur à entraínement magnétique et procédé du réglage du couple limite de transmission d'effort d'un tel agitateur
FR2788995A1 (fr) * 1999-01-28 2000-08-04 Mixel Agitateur a entrainement magnetique et procede du reglage du couple limite de transmission d'effort d'un tel agitateur
DE10318599A1 (de) * 2003-04-24 2004-11-11 Mavag Verfahrenstechnik Ag Rührer zum Mischen, Homogenisieren und Dispergieren
EP1475566A2 (fr) * 2003-05-07 2004-11-10 Ashland Inc. Méthode et dispositif pour le traitement de carburant à l'aide de couplage magnétique
FR2854663A1 (fr) * 2003-05-07 2004-11-12 Ashland Inc Appareil de traitement de carburant comprenant un homogeneiseur
EP1475566A3 (fr) * 2003-05-07 2010-05-19 Ashland Licensing and Intellectual Property LLC Méthode et dispositif pour le traitement de carburant à l'aide de couplage magnétique
US20100260008A1 (en) * 2007-11-12 2010-10-14 Ika-Werke Gmbh & Co. Kg Rotor-stator-device for dispersing or homogenizing
US8985844B2 (en) * 2007-11-12 2015-03-24 Ika-Werke Gmbh & Co. Kg Device for dispersing or homogenizing with a magnetic coupling drive for rotors in a chamber
WO2014098746A1 (fr) * 2012-12-21 2014-06-26 Cassandra Oil Technology Ab Réacteur étanche au gaz comportant un moyen d'écrasement rotatif
WO2015140669A1 (fr) * 2014-03-18 2015-09-24 Fuglesangs Subsea As Machine rotative dotée d'un entraînement magnétique étanche
DE102016106363A1 (de) 2015-04-07 2016-10-13 Bradbury Group Italy S.R.L. Apparat zum mischen von unter hochdruck stehendem polyol
CN107333504A (zh) * 2017-05-08 2017-11-10 南宁景曜电子科技有限责任公司 一种农用装置
CN107333504B (zh) * 2017-05-08 2019-09-24 张凤 一种农用装置
CN107719617A (zh) * 2017-08-30 2018-02-23 杭州电子科技大学 磁耦合组件及其磁耦合转舵装置
IT201800010289A1 (it) * 2018-11-13 2020-05-13 Tt Italy S P A Testa di miscelazione
WO2020100002A1 (fr) * 2018-11-13 2020-05-22 Tt Italy S.P.A. Tête mélangeuse

Also Published As

Publication number Publication date
EP0617999B1 (fr) 1996-12-27
DE4310266A1 (de) 1994-10-06
DE59401368D1 (de) 1997-02-06

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