EP0451747A1 - Pétrisseur-mélangeur travaillant en continu - Google Patents

Pétrisseur-mélangeur travaillant en continu Download PDF

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Publication number
EP0451747A1
EP0451747A1 EP91105497A EP91105497A EP0451747A1 EP 0451747 A1 EP0451747 A1 EP 0451747A1 EP 91105497 A EP91105497 A EP 91105497A EP 91105497 A EP91105497 A EP 91105497A EP 0451747 A1 EP0451747 A1 EP 0451747A1
Authority
EP
European Patent Office
Prior art keywords
kneading
elements
transport
disk
bars
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
EP91105497A
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German (de)
English (en)
Other versions
EP0451747B1 (fr
Inventor
Walther Dr. Ing. Schwenk
Jörg Dipl.-Ing. List
Winfried Dr. Ing. Dötsch
Pierre Ing. Htl Liechti
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 EP0451747A1 publication Critical patent/EP0451747A1/fr
Application granted granted Critical
Publication of EP0451747B1 publication Critical patent/EP0451747B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall

Definitions

  • the invention relates to a continuously operating mixer kneader for the thermal treatment of products in a liquid, pasty and / or powdery state in a housing, in which housing a kneader shaft, which is equipped with disk elements and kneading bars and rotates about an axis of rotation, is arranged axially and concentrically causes the transport of the product in the direction of transport, and kneading counter-elements are provided fixedly on the housing between the disc elements, the disc elements also being arranged in disc planes perpendicular to the kneader shaft and forming free sectors between them which form kneading spaces with the disc plane of adjacent disc elements.
  • a generally horizontal mixer kneader normally works with medium product fill levels between 50% and 80%. This makes it possible to supply or remove gases or vapors during the process.
  • the inventor has set himself the task of adapting the arrangement of kneading bars on the kneader shaft systematically to a desired axial transport, a desired degree of filling along the kneader and thus a desired residence time and residence time distribution and the intensity of the mixing and kneading action.
  • the kneading bars are arranged on a positive or negative offset line in the knee spaces between two disc elements are, with a "positive" offset line each kneading bar assigned to each two disc elements against the direction of rotation followed by a kneading bar assigned to the next two disc elements of the kneading space following in the transport direction, while the "negative" offset line runs in the direction of rotation or transport direction.
  • An essential finding of the present invention is that both the transport speed and thus the dwell time of the product in the mixing kneader as well as the intensity of the mixing and kneading effect are significantly influenced by the arrangement of the kneading bars to the disk elements and by the offset of the kneading bars on the kneader shaft. If the kneading bars are arranged on a negative offset line, a disk element pair with a kneading bar in the transport direction and a pair of disk elements without kneading bars follow in the opposite direction of rotation. In this area, both the transport of the product is inhibited and the kneading effect is reduced, since the kneading here is only carried out by the disc elements, possibly in interaction with the kneading counter elements.
  • This alternative arrangement of the kneading bars allows the different flow properties of the products to be taken into account, and it is even possible to take into account the changing physical states of the product between an inlet and an outlet.
  • a stronger or weaker backmixing and, consequently, a broader or narrower distribution of residence times can, for example, influence chemical reaction processes or mixing and kneading processes in the desired manner. For example, short-term dosing fluctuations are compensated for.
  • Another possibility is to influence the filling degree profile along the kneader and e.g. to achieve a lower filling level locally under a vapor discharge nozzle, for the purpose of better steam removal.
  • the kneading bars are preferably not located in the middle between two disk elements, but are arranged in front of or behind the disk elements. While the product remains trapped between the disk elements despite the kneading effect of the kneading bar between two disk elements when the kneading bar is arranged, it can adapt to the direction given by the kneading bar when leading or trailing. This can accelerate the transport.
  • the number of disk elements which are arranged within a disk plane around the kneader shaft plays only a subordinate role in the present invention.
  • disk elements which have an angular offset of 120 °. However, fewer or more disk elements can also be provided.
  • larger free sectors are to be formed between the disk elements, by means of which the axial transport and the mixing are also improved in a targeted and desired manner. In extreme cases, only one disk element per disk level can be present on the kneader shaft.
  • the larger non-binding sectors lie on a positive or negative sector line.
  • These positive or negative sector lines are arranged analogously to the positive or negative offset lines of the kneading bars.
  • the larger free sectors of neighboring knee rooms follow each other against the direction of rotation, as viewed against the direction of rotation.
  • the larger free sectors on the positive sector line follow each other in the opposite direction of rotation and in the direction of transport.
  • the fastest transport is ensured by the combination of the arrangement of the kneading bars on a positive offset line and the arrangement of the non-binding sectors on a positive sector line.
  • the product transport significantly reduces the arrangement of kneading bars on a negative offset line and the arrangement of sectors on a negative sector line.
  • a mix of positive offset line and negative sector line and positive sector and negative offset line is also possible.
  • the present invention allows the axial transport behavior and the backmixing (residence time distribution) of a product to be influenced in a desired manner in continuous operation and as a function of the flow behavior.
  • a mixing kneader has a mostly horizontally arranged housing 1 with end walls 10 and 15.
  • a kneader shaft 20 rotates in this housing 1 and is supported with the pins 21 and 22 in the bearings 12 and 17 on both sides of the housing 1.
  • a heating jacket for heating the housing is identified by 2.
  • the kneader shaft 20 is also preferably heated or cooled in a known manner, an inlet 29 and an outlet 30 for a heating medium being provided on a corresponding sealing head.
  • the kneader shaft 20 is driven by a motor (not shown in more detail) by means of a V-belt placed over a V-belt pulley 23, a gear 24 being engaged between the V-belt pulley 23 and the kneader shaft 20.
  • the mixer kneader shown in Figure 1 is intended for continuous operation.
  • the product is filled into the interior of the housing through an inlet nozzle 3 and removed via the outlet nozzle 4.
  • various nozzles 5 are provided on the top for removing vapors.
  • an overflow weir 32 is provided in a flange connection 31 in front of the outlet connection 4 in the exemplary embodiment of a mixing kneader.
  • Disc elements 25 are located on the rotating kneader shaft 20 at regular intervals, each having a disc bar 26 placed thereon. Between the individual sections of disk elements, the disk bars 26 are separated from one another by gaps 34, so that 20 kneading counter-elements 33 can be passed through during operation of the kneader shaft. For this purpose, the kneading counter elements 33 with a flange 35 are inserted into the housing 1, but can also be welded directly.
  • each kneading counter element 33 consists of a fastening flange 35, a neck 36, a kneading arm 37 extending approximately axially parallel to the housing wall, a disk scraper 38 arranged parallel to the disk elements and a shaft scraper 39 resting on the shaft.
  • this is Design of the kneading counter element 33 selected only as an example. Other arrangements are of course also conceivable, as shown for example in CH-PS 661 450, EP 0 220 575 and DE-PS 23 49 106.
  • Kneading bars 40 are located on the kneader shaft between the individual levels which are formed by the disk elements 25.
  • three disk elements 25a, 25b and 25c are arranged in each disk plane.
  • the respective disc bars 26 are positioned at a certain angle w to an axis-parallel line 41, which means that a transport in the direction x from the inlet nozzle to the outlet nozzle takes place.
  • the kneading bars 40 are located between two levels of disk elements 25, two of these levels being indicated by the reference number 42, for example in FIG.
  • the kneading bars 40 are located between two disk planes 42 and there in the area between successive disk elements 25, whereby these kneading bars 40 can assume a variable position. In the one position shown, the kneading bars 40 are slightly ahead of two disk elements 25, i.e. close to disk bars 26. These kneading bars are identified in the present exemplary embodiment by 40a.
  • the kneading bars 40b are trailing to the disk elements 25, so that they are relatively far away from the disk bars 26 of the following disk elements.
  • This possibility of positioning the kneading bars 40 in the region between two disk elements 25a and 25b is characterized in FIG. 2 by the angle ⁇ .
  • the offset of the kneading bars 40 from one kneading space 28 to a next kneading space 28 between two disc planes 42 is important. According to FIG. 2, the offset takes place against the direction of rotation z, the offset being referred to here as positive. The offset is also indicated by the dash-dotted lines 43. This arrangement accelerates the transport of products in the transport direction x.
  • the number of disk elements 25 is three per disk plane 42. With a regular arrangement, this results in an angular offset ⁇ of 120 ° between the disk elements 25.
  • the arrangement of disk elements 25 and kneading counter-elements 33 is the same as in FIG. 2.
  • the two exemplary embodiments differ with regard to the positioning of kneading bars 40 to disk elements 25 or gap 34.
  • the kneading bars 40a are here in the kneeling direction, for example successively staggered from the kneading chamber 28 to the kneading chamber 28 in the transport direction x between two disc planes 42. This results in a negative offset line 44, as is indicated by dash-dotted lines.
  • the kneading bars 40 are arranged here as leading kneading bars 40a or as trailing kneading bars 40b, which are only shown in broken lines. In this embodiment it is clearly recognizable that the transport effect is more negative than in the embodiment according to FIG. 2. In the embodiment according to FIG. 2, each kneading bar in the following kneading space 28 between two disk elements is followed by a kneading bar.
  • the product is transferred from kneading bars to kneading bars, which speeds up transport.
  • a kneading bar 40 in the transport direction x in the following kneading space 28 between two disc planes 42 is followed only by a gap 34 without kneading bars.
  • the product is therefore not transferred from kneading bars to kneading bars, which delays the transport.
  • FIG. 4 A further possibility of assigning kneading bars 40 to disk elements 25 and thus influencing the axial transport, the dwell time and the intensity of the mixing and kneading action is shown in FIG. 4.
  • a large number of kneading bars are provided, while one disk element has been left out per disk plane 42.
  • the gap which the disk element leaves in the disk plane 42 is referred to as sector 47 and, in this exemplary embodiment, follows one another successively in the direction of rotation z from the kneading chamber 28 to the kneading chamber 28, as shown by the broken line 45. This line is called the negative sector line.
  • the offset line 44 of the kneading bars is also negative, so that the transport of the product is considerably reduced in this embodiment.
  • two kneading bars 40 are provided in this sector 47.
  • a sector 47 is again provided between disk elements 25. However, this sector 47 is now arranged against the direction of rotation z in successive knee spaces 28, so that here there is a positive sector line 46 which has a positive influence on the product transport. The product is passed on from sector to sector, so to speak, when the shaft is rotated in the direction of rotation z.
  • the kneading bars are again only provided individually for each sector and are arranged on a negative offset line 44. This means that here the product is exposed on the one hand to a positive transport in the sectors and on the other hand to a negative transport through the arrangement of the kneading bars 40. It is understandable that this significantly improves and increases the axial mixing and kneading of the product.
  • both the sectors between two disk elements 25 and the kneading bars 40 are located on a positive offset or sector line 43/46. This enables very good evasive movements of the product in the transport direction x, so that the axial transport and at the same time the kneading of the products is influenced very positively.
  • the sectors are arranged on a negative sector line 45 in the direction of rotation, while the kneading bars 40 are located on a positive offset line 43.
  • the positive offset line 43 accelerates the transport of the product in the transport direction x, but in turn slows it down due to the negative arrangement of the sectors on the sector line 45. This also has a positive effect on a desired kneading or mixing effect.
  • a kneader shaft 20f in FIG. 8 two disk elements are omitted for each disk plane 42, specifically in the direction of rotation, i.e. with a negative sector line 45.
  • the kneading bars 40 are also arranged on negative offset lines 44.
  • the transport of the product in the transport direction x is inhibited twice, because there are always kneading bars or disc elements in the way of the product. Of course, this improves the kneading action again.
  • the free cross sections for the axial passage of vapors or gases are larger.
  • the sectors are arranged between the disk elements 25 on a positive sector line 46, while the kneading bars 40 are located on a negative offset line 44.
  • the reduction in the number of kneading bars should also be mentioned here. While three kneading bars were arranged between two disk elements in the embodiment according to FIG. 8, there is only one kneading bar between two disk elements in the embodiment according to FIG. 9, whereby two kneading bars from three successive knee spaces are located near one disk element, while the third kneading bar is located is located in the third kneading chamber approximately exactly between the two remaining disc elements. Despite this reduction in the number of kneading elements, as in all examples, the requirement for extensive self-cleaning in interaction with the static kneading elements is met.
  • the exemplary embodiment of the kneader shaft 20h in FIG. 10 is the counterpart to the exemplary embodiment according to FIG. 8, both sectors and also kneading bars being provided on a positive offset line 43 or positive sector line 46. Again, there are three kneading bars between the individual disc elements.
  • a kneader shaft 20i is shown in FIG. 11, which represents the counterpart to the kneader shaft 20g in FIG.
  • the kneading bars 40 are located on a positive offset line 43 and the sectors between the disk elements 25 are located on a negative sector line 45.
  • the positive offset line 43 of the kneading bars improves the product transport, it is again due to the negative arrangement of the sectors on the negative sector line 45 inhibited.

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)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
EP91105497A 1990-04-11 1991-04-08 Pétrisseur-mélangeur travaillant en continu Expired - Lifetime EP0451747B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH124490A CH686406A5 (de) 1990-04-11 1990-04-11 Kontinuierlich arbeitender Mischkneter.
CH1244/90 1990-04-11

Publications (2)

Publication Number Publication Date
EP0451747A1 true EP0451747A1 (fr) 1991-10-16
EP0451747B1 EP0451747B1 (fr) 1995-08-16

Family

ID=4205849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105497A Expired - Lifetime EP0451747B1 (fr) 1990-04-11 1991-04-08 Pétrisseur-mélangeur travaillant en continu

Country Status (8)

Country Link
US (1) US5147135A (fr)
EP (1) EP0451747B1 (fr)
JP (1) JP3225406B2 (fr)
AT (1) ATE126452T1 (fr)
CA (1) CA2040153C (fr)
CH (1) CH686406A5 (fr)
DE (1) DE59106245D1 (fr)
ES (1) ES2077704T3 (fr)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
WO1996022156A1 (fr) * 1995-01-18 1996-07-25 List Ag Dispositif de melange et de malaxage
EP0728518A1 (fr) * 1995-01-27 1996-08-28 Krauss-Maffei Aktiengesellschaft Dispositif de mélange et de pétrissage
NL1000276C2 (nl) * 1995-05-02 1996-11-05 Akzo Nobel Nv Werkwijze ter vervaardiging van vezels uit poly(p-fenyleen- tereftaalamide).
DE102010060320A1 (de) 2010-06-30 2012-02-16 List Holding Ag Verfahren zur thermischen Trennung einer Lösung aus thermoplastischen polymer und Lösungsmittel
DE102012103565A1 (de) 2012-04-24 2013-10-24 List Holding Ag Vorrichtung zum Transport von viskosen Massen und Pasten
WO2014023738A3 (fr) * 2012-08-08 2014-04-10 List Holding Ag Procédé de traitement de masses visco-pâteuses
WO2014135489A3 (fr) * 2013-03-04 2014-11-20 List Holding Ag Procédé de traitement de matières visco-pâteuses
DE102014106258A1 (de) 2014-05-06 2015-11-12 List Holding Ag Vorrichtung zum Bestimmen von mechanischen Belastungszuständen an einer oder mehreren Wellen
DE102023106828A1 (de) 2023-03-19 2024-09-19 List Technology Ag Mischkneter

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IL113562A (en) * 1995-05-01 1999-08-17 Bromine Compounds Ltd Process for the production of finely granulated solid chemical compounds
DE19533693A1 (de) * 1995-09-12 1997-03-13 List Ag Mischkneter
US5873945A (en) * 1996-05-16 1999-02-23 Nortru, Inc. Method for recovering a volatile organic material consisting essentially of carbonyl compounds from solvent-in-water emulsions derived from paint overspray treatment and capture systems
US6150498A (en) * 1996-07-12 2000-11-21 The Dow Chemical Company Polymer recovery
US6410783B1 (en) 2000-10-19 2002-06-25 Basf Corporation Method of producing carboxylic acid salts
CA2445074A1 (fr) * 2001-04-25 2002-11-14 List Ag Barres melangeuses a effet nettoyant dans le sens radial ou axial
KR100863870B1 (ko) 2004-06-21 2008-10-15 에보닉 스톡하우젠 게엠베하 수분 흡수성 다당류 및 이의 제조방법
DE102005001802A1 (de) * 2004-09-30 2006-04-06 List Holding Ag Verfahren zur kontinuierlichen Durchführung von Polymerisationsprozessen
US8361926B2 (en) 2008-11-25 2013-01-29 Evonik Stockhausen, Llc Water-absorbing polysaccharide and method for producing the same
DE102009036915A1 (de) 2009-08-11 2011-02-24 List Holding Ag Verfahren zum Behandeln eines Monomers, Pre-Polymers, Polymers oder einer entsprechenden Mischung
JP2015509444A (ja) 2012-02-10 2015-03-30 リスト ホールディング アーゲー 物理的、化学的及び／又は熱的工程を実行する方法
DE102012110118A1 (de) 2012-10-24 2014-04-24 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
DE102012106239A1 (de) 2012-07-11 2014-01-16 List Holding Ag Verfahren und Vorrichtung zur Behandlung eines Produktes
DE102012106237A1 (de) 2012-07-11 2014-01-16 List Holding Ag Mischkneter zur Behandlung von viskosen bzw. pastösen Produkten in einem Produktraum
DE102012108261B4 (de) 2012-07-11 2017-08-03 List Technology Ag Mischkneter zur Behandlung von viskosen bzw. pastösen Produkten in einem Produktraum
DE102012107255B4 (de) 2012-08-08 2025-02-06 List Technology Ag Vorrichtung zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen in einem Produkt
JP2015526579A (ja) * 2012-09-03 2015-09-10 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 芳香族ポリエーテルスルホンの製造方法
DE102013100182A1 (de) * 2012-09-28 2014-06-05 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
DE102013102570A1 (de) 2013-03-13 2014-09-18 List Holding Ag Verfahren zur Aufkonzentration einer Polymerlösung
DE102013105566A1 (de) 2013-05-29 2014-12-04 List Holding Ag Verfahren zur kontinuierlichen Durchführung einer Polymerisation von Monomeren oder Co-Monomeren
DE102014112579A1 (de) 2013-08-30 2015-03-05 List Holding Ag Verfahren zum Herstellen einer chemischen Substanz
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DE102014100151A1 (de) 2014-01-08 2015-07-09 List Holding Ag Vorrichtung zum Behandeln eines Produktes in einem Gehäuse
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DE102014112268A1 (de) 2014-08-27 2016-03-03 List Holding Ag Vorrichtung zum Transport von kompakten Polymermassen
WO2016030467A2 (fr) 2014-08-27 2016-03-03 List Holding Ag Procédé pour améliorer l'isolation de solutions polymères
DE102014113882A1 (de) 2014-09-25 2016-03-31 List Holding Ag Vorrichtung zum Transport von kompakten Polymermassen
KR102532868B1 (ko) 2014-11-17 2023-05-15 리스트 테크놀로지 아게 잔류물, 특히 정유공정에서의 잔류물의 처리 및/또는 회수 및/또는 재사용 방법
DE102015106439A1 (de) 2015-04-27 2016-10-27 List Holding Ag Verfahren zur Aufbereitung und/oder Rückgewinnung und/oder Wiederverwertung von Rücksänden insbesondere aus Raffinerieprozessen
DE102014116757A1 (de) 2014-11-17 2016-05-19 List Holding Ag Verfahren zum Aufarbeiten von Rückständen
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
DE102017103363A1 (de) 2017-02-17 2018-08-23 List Technology Ag Methode zur kontimuierlichen Aufbereitung von im Rahmen der Raffinerie von Rohöl auftretenden Vakuumrückständen
CN111442322B (zh) * 2020-05-13 2025-04-08 北京首创热力股份有限公司 一种供热管网系统及其调控方法

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CH583061A5 (fr) * 1972-10-18 1976-12-31 List Heinz
DE3538070A1 (de) * 1985-10-25 1987-04-30 Krauss Maffei Ag Misch- und knetvorrichtung
CH672749A5 (fr) * 1986-12-19 1989-12-29 List Ag
CH674318A5 (fr) * 1987-08-28 1990-05-31 List Ag

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DE3635877C1 (de) * 1986-10-22 1987-10-15 Heinz Nienhaus Mischtrockner

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022156A1 (fr) * 1995-01-18 1996-07-25 List Ag Dispositif de melange et de malaxage
US5934801A (en) * 1995-01-18 1999-08-10 List Ag Mixing and kneading apparatus
EP0728518A1 (fr) * 1995-01-27 1996-08-28 Krauss-Maffei Aktiengesellschaft Dispositif de mélange et de pétrissage
NL1000276C2 (nl) * 1995-05-02 1996-11-05 Akzo Nobel Nv Werkwijze ter vervaardiging van vezels uit poly(p-fenyleen- tereftaalamide).
WO1996034732A1 (fr) * 1995-05-02 1996-11-07 Akzo Nobel N.V. Procede de fabrication de fibres a partir de poly(p-phenylene terephtalamide)
US5882563A (en) * 1995-05-02 1999-03-16 Akzo Nobel Nv Process for making fibres from poly(p-phenylene terephthalamide)
DE102010060320A1 (de) 2010-06-30 2012-02-16 List Holding Ag Verfahren zur thermischen Trennung einer Lösung aus thermoplastischen polymer und Lösungsmittel
DE102012103565A1 (de) 2012-04-24 2013-10-24 List Holding Ag Vorrichtung zum Transport von viskosen Massen und Pasten
WO2014023738A3 (fr) * 2012-08-08 2014-04-10 List Holding Ag Procédé de traitement de masses visco-pâteuses
WO2014135489A3 (fr) * 2013-03-04 2014-11-20 List Holding Ag Procédé de traitement de matières visco-pâteuses
US10442113B2 (en) 2013-03-04 2019-10-15 List Technology Ag Method and device for treating viscous, paste-like materials
DE102014106258A1 (de) 2014-05-06 2015-11-12 List Holding Ag Vorrichtung zum Bestimmen von mechanischen Belastungszuständen an einer oder mehreren Wellen
DE102023106828A1 (de) 2023-03-19 2024-09-19 List Technology Ag Mischkneter
WO2024194241A1 (fr) 2023-03-19 2024-09-26 List Technology Ag Mélangeur malaxeur

Also Published As

Publication number Publication date
US5147135A (en) 1992-09-15
JP3225406B2 (ja) 2001-11-05
CA2040153C (fr) 2001-01-02
CH686406A5 (de) 1996-03-29
DE59106245D1 (de) 1995-09-21
ES2077704T3 (es) 1995-12-01
JPH06262049A (ja) 1994-09-20
ATE126452T1 (de) 1995-09-15
CA2040153A1 (fr) 1991-10-12
EP0451747B1 (fr) 1995-08-16

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