EP0274668B1 - Malaxeur-pétrisseur - Google Patents

Malaxeur-pétrisseur Download PDF

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Publication number
EP0274668B1
EP0274668B1 EP87118173A EP87118173A EP0274668B1 EP 0274668 B1 EP0274668 B1 EP 0274668B1 EP 87118173 A EP87118173 A EP 87118173A EP 87118173 A EP87118173 A EP 87118173A EP 0274668 B1 EP0274668 B1 EP 0274668B1
Authority
EP
European Patent Office
Prior art keywords
kneading
shaft
elements
disc
mixer according
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
EP87118173A
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German (de)
English (en)
Other versions
EP0274668A1 (fr
Inventor
Heinz List
Jörg List
Alfred Kunz
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
Priority claimed from CH5102/86A external-priority patent/CH672749A5/de
Priority claimed from CH3576/87A external-priority patent/CH673595A5/de
Application filed by List AG filed Critical List AG
Priority to AT87118173T priority Critical patent/ATE78423T1/de
Publication of EP0274668A1 publication Critical patent/EP0274668A1/fr
Application granted granted Critical
Publication of EP0274668B1 publication Critical patent/EP0274668B1/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
    • B01F27/707—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 kneading mixer for carrying out mechanical, thermal and / or chemical processes according to the preamble of patent claim 1.
  • Kneading mixers or mixer kneaders of this type are e.g. B. is known from AT-B-294020 or CH-A-410789.
  • a kneading shaft with vertically placed disc elements is cleaned on kneading counter-elements fixed radially in the housing, the kneading shaft with the discs making an axially reciprocating movement for good cleaning.
  • the time required for this back and forth movement leads to poor cleaning of the heat-transferring surfaces, that is to say an inadequate heat exchange and a lack of kneading action with a large expenditure of energy.
  • the heat-transferring disks are also fastened to the shaft and are cleaned by hooks with only a circumferential movement, with an interaction between mixing bars on the disks and the hooks fastened in the housing having a good kneading action is achieved.
  • the disadvantage of this arrangement for certain products is the formation of toroidal structures of the product between the panes, which strongly inhibit the material movement between the panes.
  • the counter-kneading elements form frames which comprise relatively large axially-radially directed surfaces which cover correspondingly wide annular regions in which no kneading element can engage. In these areas, the kneaded material easily cakes, which can grow into stable tori relatively undisturbed.
  • the invention was therefore based on the object of specifying a kneading mixer in which there is practically no risk of a torus formation, without having to accept a complication of the construction or other disadvantages such as high forces or an impairment of the mixing and kneading action .
  • the housing 1 is provided with a heating jacket or heating channels 2.
  • One or more nozzles 3 are arranged at the top for filling the starting product and for removing vapors.
  • the finished product is filled at the lower nozzle 4.
  • the feet 5 are for supporting the apparatus.
  • An end wall 15 is equipped with the stuffing box 18 and connected to the lantern 16 for supporting the bearing 17 for the agitator shaft journal 22.
  • the end wall 10 with the gland 13, lantern 11 and bearing 12 on the axially opposite side are similar.
  • the central shaft 20 is supported with the shaft journals 21 and 22 and is driven by a drive motor, not shown here, via the V-belt wheel 23 and the slip-on gear 24.
  • the kneading arms 32 are arranged on the shaft 20, on which stirring elements 35, 36, 37 are attached.
  • the shaft 20 is normally heatable and coolable, the heating and cooling medium being supplied through connection piece 29 and the return through connection piece 30.
  • the disc elements 25 carry wave scraper 26, which are designed so that there is a gap 31 between their ends. In the area of this gap, the adjacent cylindrical shaft part is not brushed by the shaft scraper 26. This makes it possible to mount powerful kneading arms 32 on the shaft there.
  • the shaft scrapers 26 arranged on the disc elements 25 are arranged axially so that they strip and clean the shaft 20 and the kneading arms 32.
  • the product is rubbed against the disk elements 25 by means of the kneading arms 32 and is pressed through the gap between the kneading shaft and the axial part of the kneading arm 32 by means of the shaft scrapers 26 to increase the kneading action.
  • the shaft scrapers 26 also clean the heatable and coolable surfaces of the kneading shaft 20 with the kneading arms 32 arranged thereon.
  • Fig. 3 shows z. B. an arrangement of the shaft scraper and other counter-stirring elements 26 on the disks 25, which serve to transport the product from the shaft against the actual kneading gap between the housing 1 and the stirring elements 37, 39 of the kneading arm 32.
  • a row of shaft scrapers 26 in the housing 1 one or more rows of counter-stirring elements can be arranged on different rotational radii as here.
  • these counter-stirring elements 26, which are seen one behind the other in the direction of rotation of the shaft 20 on the disk elements 25, can be designed in different ways.
  • the one counter-stirring element can only protrude to the left as seen from the holder, while the second counter-stirring element unloads accordingly to the right.
  • the shape of the counter-stirring elements can be large-area, knife-like or frame-shaped, as shown in the attached sketches.
  • the kneading effect can also be improved by the appropriate shape of the stirring elements in connection with the shape of the counter-stirring element, e.g. B. by wedge-shaped reduction of the passage cross-section in the kneading gap of the two tools.
  • an embodiment is important in which, according to FIG. B. pipe clamps, spacers, clamps or the like. Are arranged. This enables easy disassembly and subsequent simple replacement and adjustment of the kneading arms to the respective product quality.
  • FIG. 5 shows a cross section through a disk zone of the kneading mixer with two rows of kneading arms of different lengths and the correspondingly designed kneading counter elements on the disks and Two upright disk elements per disk level, between which there is a large passage opening for both axial product and axial gas transport.
  • This version has the advantage that the housing can be easily removed.
  • Fig. 6 shows the design of a kneading mixer, where the kneading elements 37, 39 and the shaft scrapers 26 are arranged so that kneading gaps 43, and 44 arise relative to the shaft 20 and the shaft scrapers 26 and between the stirring elements 37 and the housing 1.
  • Fig. 7 shows an embodiment in which the disc elements 25 are arranged so that their entire surface is heated only by heat conduction, which leads to a cheaper production and better installation options. If the heat exchange surface of the housing is sufficient, the disk elements 25 are reduced so that they only form support arms for the shaft scrapers and further counter-stirring elements 26.
  • the arrangement according to FIG. 9 is better than this arrangement, in which the kneading arms 32 no longer sit on an exactly axial line, but on a line which corresponds to the transport angle 40 of the stirring elements 37. This has the advantage that product transport is made easier.
  • the shaft scrapers 26 are also at an angle to the axial housing axis and in fact opposite to the transport angle 40 of the kneading, stirring and transport elements. This scissor-like intervention can increase the kneading effect of the system.
  • the system according to FIG. 10 shows an example of how the product accumulations and the resulting densifications and high power consumption can be significantly reduced.
  • the arrangement of the kneading arms and disk elements or of the stirring elements, shaft scrapers and further counter-stirring elements 26 was chosen such that a plurality of elements are never in engagement with one another at the same time. This is also the purpose of displacing the disk elements on the right with respect to the disk elements on the left by a certain circumferential angle.
  • the actual working space in the housing 101 which is surrounded by a heating jacket or heating channels 102, is made in three parts.
  • the individual housing parts are connected to one another with flange connections 103.
  • An outlet housing 104, a bearing lantern 105 and a drive lantern 106 are screwed onto the working housing with similar detachable flange connections.
  • a filler neck 107, an outlet neck 108, a vapor neck 109 and a cleaning and observation neck 110 are arranged on the housing 101 and the outlet housing 104.
  • the sockets 111, 112 and 113 serve as emptying sockets.
  • the end walls 114 and 115 are clamped into the flange connection at the two ends of the product space, while 116 and 117 are sheet metal rings to which disk elements 119 and 120 are fastened as counter-kneading elements.
  • a level plate 121 is attached to the flange connection between the kneading housing and the outlet housing, which regulates the product height in the kneading mixer.
  • the sheet metal rings 116 and 117 are either held by the flange connections 103 or welded or screwed directly into the housing 101 as disk elements 119 and 120.
  • Each scraper element is provided along the kneading shaft with the axially protruding counter kneading elements or shaft scrapers 123 and 124, between each of which a gap 125 is arranged in order to allow the passage of the kneading arms 131 fastened on the kneading shaft 130.
  • the disc elements can also be designed as a ring which projects into the interior of the housing from the inner wall.
  • the kneading mixer consists of the kneading shaft 130, on which kneading or stirring elements 132 and transport elements 133 are fastened by means of the kneading arms 131.
  • the drive and bearing shaft journals 134 and 135 are inserted at the ends of the kneading shaft 130.
  • the stuffing boxes 136 and 137 seal the shaft passage against the production room.
  • the entire kneading shaft 130 is supported in bearings 138 and 139 and driven by an electric motor by means of a gear 140.
  • the heating medium for heating the kneading shaft is fed back and forth via a mechanical seal head 141.
  • each stirring element 132 is provided with a scraping edge 142, an axial scraping edge 144 and a kneading gap surface 143 (see FIG. 13).
  • the product fed into the nozzle 107 is gripped by the kneading elements 132 and alternately subjected to a strong kneading action between the opposite disc surfaces.
  • the product level As soon as the product level has reached the kneading shaft, it is gripped by the shaft scrapers 123 and 124. In the present case (but not shown here), these doctor blades are inclined. This inclination means that the material is transported axially through the individual knee spaces between the disc surfaces of the machine.
  • the product falls over the upper edge of the level plate 121 into the outlet housing 104 and is fed there to the outlet nozzle 108 through a frame-shaped stirring bar 145.
  • the transport elements 133 are the transport elements which ensure that the product pushed back and forth by the stirring elements 132 between the opposite disc surfaces is again distributed evenly over the two disc surfaces as counter-kneading elements.
  • the transport elements 133 shown here can also be designed as surfaces inclined in one direction, which then act as additional axially acting transport elements for the product through the machine. It is also possible for the material to be returned in the machine by means of such transport elements.
  • FIG. 14 shows yet another arrangement of the shaft scrapers 123 and 124, the kneading action resulting from the position of the scraping diameter with which the product is pressed into the space between two scraping surfaces resulting in an increased kneading effect.
  • This kneading effect can be further increased by the fact that individual areas of the disk elements 119 and 120 prevent the product from escaping inwards by axially protruding catch plates 128 (see also FIG. 15). This results in a narrowing of the cross section when the kneading elements pass through and an increased kneading effect.
  • the shaft scrapers 123 and 124 are arranged obliquely, and to ensure the axial transport of the product through the machine.
  • the kneading arms 150 are designed as multi-surface kneading elements, the material first cleaning the inner wall of the housing 1 through the scraping edge 151 and scraping the outer part of the disk elements adjoining the inner wall with scraping edges 152.
  • the discharge surfaces for the product belonging to these scraping edges guide the scraped product directly into the kneading gap 153 against the opposite disc element surface.
  • the inner part of the disc elements is cleaned from the edge 154.
  • the product is directed more inwards against the kneading shaft by the associated disc surface and is gripped there by the corresponding shaft scrapers as kneading counter-elements.
  • the shaft scrapers are often shaped in such a way that they serve as counter-kneading elements for the scrapers 154.
  • the principle of the multi-surface scraper can also be implemented in another form. The principle is characterized by dividing the product into different product streams, which are mixed again by the subsequent kneading elements.
  • the cross section according to FIG. 18 and the partial longitudinal section according to FIG. 19 show an embodiment with a fork-shaped kneading arm and a correspondingly shaped disk element, which is characterized in particular by radial arms 160 placed on the shaft scraper.
  • the stirring elements 163 are connected to the kneading shaft 130 via supports 165, 162 designed as disk elements and extend axially along the inner wall of the housing 101, to which radial kneading bars 164 are in turn fastened along the fixed disk elements. Good mixing and kneading effects and good cleaning of the latter result from the passage of the stirring elements which engage in a fork shape in the disc elements (discs 119, 120 and arms 160).
  • the kneading arms in the area of the kneading shaft 130 are likewise designed as heat-transmitting, disk-shaped ring segments which are continuously cleaned by the fixed radial arms 160.
  • These kneading arms can also be designed on one side, in which case one kneading arm between the disk surfaces cleans the one fixed disk surface, while a second kneading arm takes over this work for the opposite disk surface.
  • the supports 165, 162 can completely enclose the kneading shaft 130 in an annular design.
  • kneading elements can be arranged in one machine.
  • the kneading elements can, insofar as the mutual interaction of the kneading element and the kneading counter element permits, be carried out in bent and twisted forms.
  • the transport elements are selected so that the product circulates in the machine in two circles, first being transported axially from the center outwards and then back again in a known manner.

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

Claims (19)

  1. Malaxeur-pétrisseur pour le traitement de matières liquides, pâteuses et visqueuses ou solides coulantes, comportant un châssis (1 : 101) cylindrique ou en forme d'auge, pouvant être chauffé ou refroidi, ainsi qu'un arbre de pétrissage (20 : 130) tournant dans celui-ci sur le même axe, qui porte, par des bras de pétrissage (32 ; 131 ; 150) répartis sur sa longueur, des éléments de brassage (35, 36, 37 ; 39 ; 132 ; 152, 154) dans une direction axiale et en porte-à-faux, tandis que sur le châssis sont placés plusieurs éléments en forme de disque (25 ; 119, 120) radiaux, également répartis sur sa longueur, qui portent des racloirs d'arbre (26 ; 123, 124), pour le nettoyage de l'arbre de pétrissage (20 ; 130), orientés axialement, s'étendant dans l'espace compris entre cet arbre et les éléments de brassage (35, 36, 37 ; 39 ; 132 ; 152, 154), le long de l'arbre de pétrissage (20 ; 130), lesquels racloirs nettoient en outre, avec des bords latéraux s'étendant le long de surfaces latérales des bras de pétrissage (32 ; 131 ; 150), lesdites surfaces latérales, les éléments de brassage (35, 36, 37 ; 39 ; 132 ; 152, 154) s'étendant chacun jusqu'à proximité des éléments en disque (25 ; 119, 120).
  2. Malaxeur-pétrisseur selon la revendication 1, caractérisé en ce que les bras de pétrissage (32 ; 131 ; 150) sont placés entre les éléments en disque (25 ; 119, 120) dans la direction longitudinale en une rangée au moins qui suit une génératrice du cylindre de rotation de l'arbre de pétrissage (20 ; 130).
  3. Malaxeur-pétrisseur selon la revendication 1, caractérisé en ce que les bras de pétrissage (32 ; 131 ; 150) sont placés sur les racloirs d'arbre (120 ; 130) dans la direction longitudinale, décalés par rapport à la génératrice du cylindre de rotation.
  4. Malaxeur-pétrisseur selon l'une des revendications 1 à 3, caractérisé en ce qu'il est prévu dans un espace compris entre les éléments en disque (25 ; 119, 120), plusieurs bras de pétrissage (32 ; 131 ; 150) différents par leur forme ainsi que par leur distance de l'arbre de pétrissage (20 ; 130).
  5. Malaxeur-pétrisseur selon la revendication 4, caractérisé en ce que les bras de pétrissage (32a, 32b, 32c) sont adaptés à la forme respective des éléments en disque (25), de la paroi intérieure du châssis (1) ainsi qu'aux racloirs d'arbre (26) des éléments en disque (25).
  6. Malalaxeur-pétrisseur selon l'une au moins des revendications 1 à 6, caractérisé en ce qu'il est fixé sur l'arbre de pétrissage (20) dans la direction axiale, entre deux éléments en disque (25) radiaux, au moins deux bras de pétrissage (32a, 32c) tournants, dont un (32a) s'étend le long d'un seul élément en disque (25) et d'une partie de l'enveloppe du châssis, tandis que le deuxième bras de pétrissage (32c) s'étend le long de l'élément en disque (25) opposé et de la partie restante de l'enveloppe du châssis, entre les deux éléments en disque (25) radiaux cités.
  7. Malaxeur-pétrisseur selon l'une des revendications 1 à 3, caractérisé en ce qu'un bras de pétrissage (32 ; 131 ; 150) au moins se déplace entre les racloirs d'arbre et éventuellement d'autres éléments de brassage antagonistes (26 ; 123, 124).
  8. Malaxeur-pétrisseur selon l'une des revendications 1 à 7, caractérisé en ce que les bras de pétrissage (32 ; 131 ; 150) sont pourvus d'éléments de brassage (35, 36, 37, 39 ; 132 ; 163).
  9. Malaxeur-pétrisseur selon la revendication 8, caractérisé en ce que les éléments de brassage (35, 36, 37, 39 ; 132; 163) forment un angle par rapport à la génératrice axiale du châssis (1, 101), afin de favoriser le transport du produit à traiter à travers le malaxeur-pétrisseur.
  10. Malaxeur-pétrisseur selon la revendication 8 ou 9, caractérisé en ce qu'il est prévu sur un bras de pétrissage (32, 131, 150, 162) plusieurs éléments de brassage (35, 36, 37, 39 ; 132 ; 163).
  11. Malaxeur-pétrisseur selon l'une des revendications 1 à 10, caractérisé en ce que les bras de pétrissage (32 ; 131 ; 150) sont placés sur des supports (38) qui sont fixés de manière amovible et interchangeable sur l'arbre de pétrissage (20 ; 130).
  12. Malaxeur-pétrisseur selon l'une au moins des revendications 1 à 11, caractérisé en ce que les racloirs d'arbre (26 ; 123, 124) fixes sont inclinés le long de l'arbre de pétrissage (20 ; 130) par rapport aux génératrices de celui-ci, pour le transport axial.
  13. Malaxeur-pétrisseur selon la revendication 12, caractérisé en ce que les racloirs d'arbre (26 ;123, 124), en porte-à-faux axialement, fixés à l'intérieur sur les éléments en disque (25 ; 119, 120), sont pourvus, pour le transport radial du produit, de surfaces qui sont inclinées par rapport aux rayons passant par le centre de l'arbre de pétrissage (20 ; 126).
  14. Malaxeur-pétrisseur selon les revendications 12 à 13, caractérisé en ce que pour accroître l'effet de pétrissage, les éléments en disque (119, 120) sont pourvus, sur le cercle de déplacement intérieur des éléments de brassage (132), de tôles d'interception (128), en porte-à-faux axialement, ce qui fait que l'espace de pétrissage à travers lequel passent les éléments de brassage, est également rétréci vers l'intérieur.
  15. Malaxeur-pétrisseur selon l'une des revendications 12 à 14, caractérisé en ce que les éléments de brassage (132) tournant avec les bras de pétrissage (131), fixés sur l'arbre de pétrissage (130), sont conçus de manière à présenter sur le diamètre extérieur, des bords de raclage (144) pour le nettoyage du diamètre intérieur du châssis, des bords de raclage (142) radiaux pour le nettoyage des éléments en disque (119, 120) fixes et une surface radiale (143) avec laquelle le produit qui est enlevé par raclage de la paroi intérieure du châssis et de l'élément en disque, est guidé vers l'élément en disque opposé dans une fente de pétrissage radiale.
  16. Malaxeur-pétrisseur selon l'une des revendications 12 à 14, caractérisé en ce que les éléments de brassage sont pourvus sur les bras de pétrissage (150) de plusieurs, au moins deux, bords de raclage (151, 152, 154) qui raclent séparément l'une de l'autre les différentes zones telles que la paroi intérieure du châssis et les surfaces des disques, les surfaces de déflexion du produit, faisant partie des différents bords de raclage, étant disposées de telle sorte que les courants de produit détaché par raclage soient partagés dans différentes directions, puis mélangés à nouveau ensemble, l'une au moins des surfaces de déflexion formant une fente de pétrissage (153) avec les éléments en disque fixes ou la paroi intérieure du châssis.
  17. Malaxeur-pétrisseur selon l'une des revendications 12 à 14, caractérisé en ce que chaque bras de pétrissage est constitué d'un support radial (162), d'un racloir axial (163) le long de la surface intérieure du châssis et, fixées sur celle-ci, des barres de pétrissage (164) radiales, s'étendant de l'extérieur vers l'intérieur, pour le nettoyage des éléments en disque (119, 120) et en ce que l'élément de brassage antagoniste correspondant s'engage, en tant que bras (160) radial fixé sur les racloirs d'arbre (123, 124), entre le support (162) et les barres de pétrissage (164) du bras de pétrissage.
  18. Malaxeur-pétrisseur selon l'une au moins des revendications 12 à 17, caractérisé en ce que les supports (165, 162) des bras de pétrissage tournant sur l'arbre de pétrissage (130) sont conçus sous la forme d'éléments en disque ou d'éléments en anneau de disque (165) pour augmenter la surface de transmission de chaleur.
  19. Malaxeur-pétrisseur selon l'une des revendications 12 à 18, caractérisé en ce qu'il est placé sur l'arbre de pétrissage (130), entre les éléments de brassage (132), des éléments de transport (133) qui nettoient d'une part la paroi intérieure du châssis et qui d'autre part présentent des surfaces de transport qui sont inclinées par rapport aux génératrices axiales du châssis.
EP87118173A 1986-12-19 1987-12-08 Malaxeur-pétrisseur Expired - Lifetime EP0274668B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118173T ATE78423T1 (de) 1986-12-19 1987-12-08 Knetmischer.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH5102/86 1986-12-19
CH5102/86A CH672749A5 (fr) 1986-12-19 1986-12-19
CH3576/87A CH673595A5 (en) 1987-09-16 1987-09-16 Rotary mixer
CH3576/87 1987-09-16

Publications (2)

Publication Number Publication Date
EP0274668A1 EP0274668A1 (fr) 1988-07-20
EP0274668B1 true EP0274668B1 (fr) 1992-07-22

Family

ID=25693356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118173A Expired - Lifetime EP0274668B1 (fr) 1986-12-19 1987-12-08 Malaxeur-pétrisseur

Country Status (4)

Country Link
EP (1) EP0274668B1 (fr)
JP (1) JPS6458333A (fr)
CA (1) CA1299444C (fr)
DE (1) DE3780608D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150003732A (ko) * 2012-04-24 2015-01-09 리스트 홀딩 아게 혼합용 니더

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Publication number Priority date Publication date Assignee Title
US5041249A (en) * 1989-12-26 1991-08-20 Exxon Chemical Patent Inc. Process for low-temperature elastomer finishing
DE19940521C2 (de) * 1999-08-26 2003-02-13 List Ag Arisdorf Mischkneter
EP1714694B2 (fr) † 2005-04-20 2011-11-02 Buss-SMS-Canzler GmbH Mélangeur / réacteur gros volume
ATE489152T1 (de) 2005-12-05 2010-12-15 Buss Sms Canzler Gmbh Grossvolumiger reaktor beziehungsweise dünnschichtverdampfer mit einem vormischaggregat
CN102962026B (zh) * 2012-12-04 2014-02-05 苏州天马精细化学品股份有限公司 连续化无溶剂制备高纯度akd的设备及方法
CN107051355A (zh) * 2017-03-30 2017-08-18 山东里德工程技术有限公司 一种单轴自清洁反应器
CN109432810A (zh) * 2018-12-05 2019-03-08 杭州索孚机械有限公司 卧式单轴自清洁薄膜蒸发器

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Publication number Priority date Publication date Assignee Title
DE1020002B (de) * 1953-09-25 1957-11-28 Wilhelm Loedige Mischmaschinen mit in einem Behaelter auf einer Welle wendelfoermig verteilten Misch- und Schleuder-Elementen
CH434208A (de) * 1965-08-14 1967-04-30 List Heinz Misch- und Knetmaschine mit scheibenförmigen Knetelementen
CH506322A (de) * 1969-03-17 1971-04-30 List Heinz Mehrspindelige Misch- und Knetmaschine
AT311928B (de) * 1969-04-08 1973-12-10 Buss Ag Misch- und Kneteinrichtung
AT294020B (de) * 1969-04-08 1971-11-10 Buss Ag Misch- und Kneteinrichtung
CH583061A5 (fr) * 1972-10-18 1976-12-31 List Heinz
CH657069A5 (de) * 1982-10-04 1986-08-15 List Ind Verfahrenstech Heiz- und kuehlbarer scheibenruehrer.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150003732A (ko) * 2012-04-24 2015-01-09 리스트 홀딩 아게 혼합용 니더
KR102127020B1 (ko) 2012-04-24 2020-07-09 리스트 홀딩 아게 혼합용 니더

Also Published As

Publication number Publication date
DE3780608D1 (de) 1992-08-27
CA1299444C (fr) 1992-04-28
EP0274668A1 (fr) 1988-07-20
JPS6458333A (en) 1989-03-06

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