EP1078682B1 - Mélangeur-pétrisseur - Google Patents

Mélangeur-pétrisseur Download PDF

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Publication number
EP1078682B1
EP1078682B1 EP00116475A EP00116475A EP1078682B1 EP 1078682 B1 EP1078682 B1 EP 1078682B1 EP 00116475 A EP00116475 A EP 00116475A EP 00116475 A EP00116475 A EP 00116475A EP 1078682 B1 EP1078682 B1 EP 1078682B1
Authority
EP
European Patent Office
Prior art keywords
shaft
kneading
mixing kneader
shafts
disc
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
EP00116475A
Other languages
German (de)
English (en)
Other versions
EP1078682A3 (fr
EP1078682A2 (fr
Inventor
Daniel Arnaud
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.)
List AG
Original Assignee
List 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 List AG filed Critical List AG
Publication of EP1078682A2 publication Critical patent/EP1078682A2/fr
Publication of EP1078682A3 publication Critical patent/EP1078682A3/fr
Application granted granted Critical
Publication of EP1078682B1 publication Critical patent/EP1078682B1/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
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/95—Heating or cooling systems using heated or cooled stirrers

Definitions

  • the invention relates to a mixing kneader for carrying out mechanical, chemical and / or thermal processes with at least two axially parallel rotating shafts in a housing having an inner wall, wherein on the shafts in the direction of rotation and in the axial direction of the waves successive, along the inner wall of the housing and in Direction of the waves or obliquely extending kneading bars are located on a support member, wherein the tracks of the kneading or supporting elements overlap at least partially on the two shafts and grip the kneading bars on one shaft between the support members on the other shaft when turning.
  • a single-shaft and two-shaft mixing kneader are distinguished.
  • the present invention relates to a two-shaft mixing kneader, as described, for example, in CH-A 506 322.
  • the object of the present invention is to further improve the internal cleaning of such a mixing kneader.
  • At least one kneading bar engages on one shaft with one end in the plane of support elements on the other shaft, wherein at least one support element forms a recess in the region of the path of this at least one kneading bar.
  • the shafts rotate axially parallel and in the same direction.
  • the support element may be a simple trunk on which a kneading bar is placed. In this way, a T-shaped kneading and transport element is formed.
  • at least one stem should have a return in the region of the path of the kneading bar meshing with it of the other shaft, so that a recess for this kneading bar of the other shaft is formed. Through this recess then moves an extended end of the kneading bar of the other shaft, so that a cleaning of the housing inner wall in the plane of the other support elements can take place, which does not have such a return.
  • a mixing kneader P has, according to FIG. 1, a housing which may consist of several housing sections 1a, 1b and 1c.
  • the housing sections are coupled to each other by corresponding flange 2.
  • a feed nozzle 3 for a product to be treated in the mixing kneader and in the Housing section 1c provided an outlet 4 for the treatment product.
  • the product is transported from the feed nozzle 3 to the outlet 4 by means of two shafts 5 and 6 and kneading and transport elements 7 arranged thereon. During transport, a mixture and kneading of the product and preferably a thermal treatment takes place.
  • connections 9 and 10 are arranged around corresponding inlet and outlet nozzles 11 and 12 for the heating medium guided through the shafts 5 and 6.
  • a corresponding guidance of the heating medium in lateral surfaces of the shafts 5 and 6 and a corresponding return through the outlet 12 are prior art and will therefore not be further described.
  • a lantern 15 Between the terminals 9 and 10 engage with the shafts 5 and 6 connected to shaft journals 13 and 14 a lantern 15, wherein against the housing 1 in each case a stuffing box 16 and 17 for sealing the shaft 5 and 6 is provided.
  • the shaft journals 13 and 14 are coupled to each other outside the lantern via a corresponding synchronization gear with the gears 18 and 19, wherein the synchronization gear is connected via a belt drive 20 with a drive 21.
  • the gears 18 and 19 are set in rotary motion, which are transmitted to the shaft 5 and 6 respectively.
  • a transmission of this rotational movement on the shafts 5 and 6 takes place in the same direction at the same speed.
  • Appropriate Synchronization are state of the art and will not be described in detail here.
  • each kneading and transport element 7 has a support element 22 and a kneading bar 23.
  • the support member is configured disc-shaped, wherein the kneading bars sit on the periphery of the disc-shaped support members.
  • the disc-shaped support member is divided into a larger and a smaller disc part 24 and 25. Both disc parts lie in the same plane and their outer surfaces are preferably at the same radius r, which rotates about a central axis M of the shaft 5/6.
  • the larger disk part 24 and the smaller disk part 25 are separated by a recess 26, wherein the larger disk part 24 to the recess 26 toward a circular arc portion 27 having a radius greater than the radius r.
  • the smaller disk part 25 which still carries two kneading bars 23.1 and 23.2 on its periphery, has a straight peripheral edge 28 towards the recess 26. It is connected to the shaft 5/6 via an axially offset gusset 29.
  • the recess 26 is arranged and designed so that it can be traversed by a kneading bar 23.3 when turning the shafts 5 and 6.
  • the kneading bar 23.3 is formed extended on one side, so that it engages with this elongated end 30 in a plane E, which is formed during rotation of the shafts 5/6 of the consecutive in the direction of rotation support members 22.
  • kneading and transport element in the axial direction of the shaft has a kneading bar 23.4 which has a shortened end 32 towards the gusset 29.
  • an entire inner wall 21 of the housing wall 8 is coated by the kneading bars because the extended end 30 of the kneading bar 23.3 also just sweeps over those gaps 33 which are formed by the normal kneading bars 23.
  • the kneading and transport element is formed by two discs 34 and 35 which lie on one another.
  • both discs 34 and 35 have a same radius r around the center of the shaft 5/6 and have a mirror-image opposite circular arc portion 27 with a larger radius than the radius r.
  • this circular arc portion 27 extends close to the shaft surface and, as seen in Figure 6, a surface portion 36 of the disc 34 free, so that in this way a recess 26.1 is formed, which can be painted by an extended end 30.1 of a kneading bar 23.5.
  • a radially projecting wing 37 is formed, with which at least a portion of the free surface 36 can be cleaned. If the kneading bars 23.5, as in the present embodiment are axially in a row, the kneading bar 23.5 has both the one-sided extended and the shortened end, ie, the kneading bar 23.5 is offset axially relative to the other kneading bars.
  • the kneading bars as a whole are set at an angle to the longitudinal axis of the shaft.
  • the kneading bars 23.5 which in contrast to the other kneading bars 23 has the extended end 30.1, or is offset to the right, lies on an axis oblique line.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Crushing And Grinding (AREA)
  • Accessories For Mixers (AREA)

Claims (9)

  1. Mélangeur-pétrisseur destiné à réaliser des processus mécaniques, chimiques et/ou thermiques, avec au moins deux arbres rotatifs de manière parallèle à l'axe (5, 6) dans un boîtier avec une paroi intérieure (31), sur les axes (5, 6) se trouvant sur un élément de support (22, 24, 25, 34, 36), dans le sens de rotation et dans le sens de l'axe des arbres (5, 6), des barres de pétrissage (23-23.6) successives s'étendant le long de la paroi intérieure (31) du boîtier et en direction des arbres (5, 6) ou de manière inclinée par rapport à ces derniers, les trajets des barres de pétrissage (23-23-6) ou de l'élément de support (22, 24, 25, 34, 36) sur les deux arbres (5, 6) se recouvrant au moins partiellement et les barres de pétrissage (23-23.6) sur l'un des arbres (5 ou 6) s'engageant, lors de la rotation, entre les éléments de support (22, 24, 25, 34, 36) sur l'autre axe (6 ou 5),
    caractérisé par le fait
    que l'au moins une barre de pétrissage (23.3, 23.5) sur l'un des arbres (5/6) vient en prise avec une extrémité (30, 30.1) dans le plan (E) d'éléments de support (24, 25, 35) sur l'autre arbre (6/5), au moins un élément de support (24/25, 35) formant, au moins à l'endroit du trajet de cette au moins une barre de pétrissage (23.3, 23.5), un évidement (26, 26.1).
  2. Mélangeur-pétrisseur selon la revendication 1, caractérisé par le fait que l'élément de support est un fût sur lequel se trouve, en forme de T, une barre de pétrissage et que le fût, à l'endroit du trajet de la barre de pétrissage de l'autre arbre engrenant en forme de peigne avec cette dernière, un décrochement.
  3. Mélangeur-pétrisseur selon la revendication 1, caractérisé par le fait que l'élément de support des barres de pétrissage (23, 23.3, 23.4) est un disque (24/25) qui présente, à l'endroit du trajet de la barre de pétrissage (23.3) de l'autre arbre (5/6) engrenant en forme de peigne avec cette dernière, un décrochement (26).
  4. Mélangeur-pétrisseur selon la revendication 3, caractérisé par le fait que le disque est divisé en deux et séparé par l'évidement (26).
  5. Mélangeur-pétrisseur selon la revendication 4, caractérisé par le fait qu'un petit élément de disque (25) est connecté à l'axe (5/6) par l'intermédiaire d'un chanteau (29) coudé.
  6. Mélangeur-pétrisseur selon la revendication 4 ou 5, caractérisé par le fait qu'un grand élément de disque (24) est entaillé en arc de cercle en formant un arc de cercle (27) de grand rayon.
  7. Mélangeur-pétrisseur selon la revendication 3, caractérisé par le fait que deux disques (34, 35) sont superposés, au moins un disque (34) venant en recouvrement avec l'autre pour former l'évidement.
  8. Mélangeur-pétrisseur selon la revendication 7, caractérisé par le fait que deux disques (34, 35) se recouvrent mutuellement.
  9. Mélangeur-pétrisseur selon la revendication 7 ou 8, caractérisé par le fait que le disque (35) est entaillé en arc de cercle en formant un arc de cercle (27) de grand rayon.
EP00116475A 1999-08-26 2000-07-29 Mélangeur-pétrisseur Expired - Lifetime EP1078682B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19940521 1999-08-26
DE19940521A DE19940521C2 (de) 1999-08-26 1999-08-26 Mischkneter

Publications (3)

Publication Number Publication Date
EP1078682A2 EP1078682A2 (fr) 2001-02-28
EP1078682A3 EP1078682A3 (fr) 2003-08-13
EP1078682B1 true EP1078682B1 (fr) 2006-04-12

Family

ID=7919693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116475A Expired - Lifetime EP1078682B1 (fr) 1999-08-26 2000-07-29 Mélangeur-pétrisseur

Country Status (4)

Country Link
EP (1) EP1078682B1 (fr)
AT (1) ATE322941T1 (fr)
DE (2) DE19940521C2 (fr)
ES (1) ES2262474T3 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US9079984B2 (en) 2010-06-30 2015-07-14 List Holding Ag Process for thermal separation of a solution consisting of thermoplastic polymer and solvent

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WO2002089963A2 (fr) * 2001-04-25 2002-11-14 List Ag Barres melangeuses a effet nettoyant dans le sens radial ou axial
DE10150900C1 (de) * 2001-10-18 2003-04-24 List Ag Mischkneter mit unterschiedlich dicken Tragelementen für Knetbarren
DE10306613B4 (de) 2003-02-14 2007-03-01 List Holding Ag Verfahren zur Durchführung einer Massepolymerisation
DE102008008342A1 (de) 2008-02-08 2009-08-20 List Holding Ag Verfahren und Vorrichtung zur Herstellung von Formkörpern aus nachwachsenden Rohstoffen
WO2009098073A1 (fr) 2008-02-08 2009-08-13 List Holding Ag Procédé et dispositif de production de corps moulés
DE102008023064A1 (de) 2008-05-09 2009-11-12 List Holding Ag Verfahren und Vorrichtung zur Herstellung von Formförpern
DE102008048580B4 (de) 2008-09-23 2014-08-21 List Holding Ag Vorrichtung zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
DE102009036915A1 (de) 2009-08-11 2011-02-24 List Holding Ag Verfahren zum Behandeln eines Monomers, Pre-Polymers, Polymers oder einer entsprechenden Mischung
DE102010037530A1 (de) 2010-06-11 2011-12-15 List Holding Ag Verfahren zur Herstellung eines Produktes
DE102010014298A1 (de) 2010-04-08 2011-10-13 List Holding Ag Verfahren zur Herstellung von Formkörpern
BR112012025717A2 (pt) 2010-04-08 2016-07-19 List Holding Ag processo para preparação de um produto
DE102011089056A1 (de) 2011-12-19 2013-06-20 Evonik Industries Ag Verfahren zur Herstellung von Polyestern
DE102012106872A1 (de) 2012-01-05 2013-07-11 List Holding Ag Vorrichtung zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
DE102012110118A1 (de) 2012-10-24 2014-04-24 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
WO2013117677A1 (fr) 2012-02-10 2013-08-15 List Holding Ag Procédé de réalisation de processus mécaniques, chimiques et/ou thermiques
DE102012103296A1 (de) 2012-04-17 2013-10-17 List Holding Ag Verfahren zur Herstellung von Formkörpern
DE102012103565A1 (de) 2012-04-24 2013-10-24 List Holding Ag Vorrichtung zum Transport von viskosen Massen und Pasten
DE102012108261B4 (de) 2012-07-11 2017-08-03 List Technology Ag Mischkneter zur Behandlung von viskosen bzw. pastösen Produkten in einem Produktraum
DE102012106239A1 (de) 2012-07-11 2014-01-16 List Holding Ag Verfahren und Vorrichtung zur Behandlung eines Produktes
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WO2014023738A2 (fr) 2012-08-08 2014-02-13 List Holding Ag Procédé de traitement de masses visco-pâteuses
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US9534083B2 (en) 2012-09-03 2017-01-03 Basf Se Production of polyamides by polycondensation
DE102013100182A1 (de) 2012-09-28 2014-06-05 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
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DE102013105566A1 (de) 2013-05-29 2014-12-04 List Holding Ag Verfahren zur kontinuierlichen Durchführung einer Polymerisation von Monomeren oder Co-Monomeren
WO2015022079A1 (fr) 2013-08-15 2015-02-19 List Holding Ag Procédé et dispositif de transformation de polymères/produits de polymérisation en solution en éléments moulés en polymère
DE102014112579A1 (de) 2013-08-30 2015-03-05 List Holding Ag Verfahren zum Herstellen einer chemischen Substanz
DE102014109786A1 (de) 2014-07-11 2016-01-14 List Holding Ag Verfahren zur Herstellung von Formkörpern
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JP6472443B2 (ja) 2013-10-10 2019-02-20 リスト ホールディング アーゲー 混合物の処理方法
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DE102014004222A1 (de) 2014-03-25 2015-10-01 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
DE102014106258A1 (de) 2014-05-06 2015-11-12 List Holding Ag Vorrichtung zum Bestimmen von mechanischen Belastungszuständen an einer oder mehreren Wellen
WO2016030467A2 (fr) 2014-08-27 2016-03-03 List Holding Ag Procédé pour améliorer l'isolation de solutions polymères
DE102014112268A1 (de) 2014-08-27 2016-03-03 List Holding Ag Vorrichtung zum Transport von kompakten Polymermassen
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DE102014116757A1 (de) 2014-11-17 2016-05-19 List Holding Ag Verfahren zum Aufarbeiten von Rückständen
WO2016078994A1 (fr) 2014-11-17 2016-05-26 List Holding Ag Procédé de traitement et/ou de récupération et/ou de recyclage de résidus, provenant en particulier de processus de raffinage
RU2592626C1 (ru) * 2015-03-20 2016-07-27 федеральное государственное бюджетное образовательное учреждение высшего образования "Ставропольский государственный аграрный университет" (ФГБОУ ВО Ставропольский ГАУ) Горизонтальный смеситель материалов
DE102015107027A1 (de) 2015-05-06 2016-11-10 List Holding Ag Vorrichtung und Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
DE102015114281A1 (de) 2015-08-27 2017-03-02 List Holding Ag Verfahren zur Verbesserung der Isolation von Polymerlösungen
CN106621900B (zh) * 2017-01-10 2023-04-07 浙江大学 一种用于污泥干燥机的具有啮合叶片的自清搅拌式转轴
DE102021100480A1 (de) 2021-01-13 2022-07-14 List Technology Ag Mischkneter zur Verarbeitung eines Transfergemisches zu einer Formlösung nach dem Direktlöseverfahren
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CH506322A (de) * 1969-03-17 1971-04-30 List Heinz Mehrspindelige Misch- und Knetmaschine
JPS4823255B1 (fr) * 1970-04-27 1973-07-12
EP0274668B1 (fr) * 1986-12-19 1992-07-22 List AG Malaxeur-pétrisseur
DE4118884A1 (de) * 1991-06-07 1992-12-10 List Ag Mischkneter
CA2102577A1 (fr) * 1992-11-24 1994-05-25 Walther Schwenk Melangeur-malaxeur
CH688365A5 (de) * 1995-01-18 1997-08-29 List Ag Misch- und Knetvorrichtung.
DE19536944A1 (de) * 1995-10-04 1997-04-10 List Ag Mischkneter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9079984B2 (en) 2010-06-30 2015-07-14 List Holding Ag Process for thermal separation of a solution consisting of thermoplastic polymer and solvent
US9480933B2 (en) 2010-06-30 2016-11-01 List Holding Ag Process for thermal separation of a solution

Also Published As

Publication number Publication date
DE19940521C2 (de) 2003-02-13
ATE322941T1 (de) 2006-04-15
EP1078682A3 (fr) 2003-08-13
DE19940521A1 (de) 2001-04-19
EP1078682A2 (fr) 2001-02-28
DE50012557D1 (de) 2006-05-24
ES2262474T3 (es) 2006-12-01

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