EP0403951B1 - Mélangeur - Google Patents

Mélangeur Download PDF

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Publication number
EP0403951B1
EP0403951B1 EP90111187A EP90111187A EP0403951B1 EP 0403951 B1 EP0403951 B1 EP 0403951B1 EP 90111187 A EP90111187 A EP 90111187A EP 90111187 A EP90111187 A EP 90111187A EP 0403951 B1 EP0403951 B1 EP 0403951B1
Authority
EP
European Patent Office
Prior art keywords
container
mixing
screw
rotary head
mixing container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90111187A
Other languages
German (de)
English (en)
Other versions
EP0403951A1 (fr
Inventor
Hans-Joachim Dipl.-Ing. Titus
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.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei 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 Krauss Maffei AG filed Critical Krauss Maffei AG
Priority to AT90111187T priority Critical patent/ATE89190T1/de
Publication of EP0403951A1 publication Critical patent/EP0403951A1/fr
Application granted granted Critical
Publication of EP0403951B1 publication Critical patent/EP0403951B1/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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • B01F27/953—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis using only helical stirrers
    • 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
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • B01F35/4121—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft at the top and at the bottom of the receptacle, e.g. for performing a conical orbital movement about a vertical axis
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/352—Bearings
    • 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
    • B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis

Definitions

  • the invention relates to a conical screw mixer with an upwardly conically enlarged mixing container, a product outlet opening in the lower region of the mixing container, a connection unit connected to the lower end of the mixing container, a rotary head mounted in the connection unit, in which the shaft, which is rotatably driven at the lower end, is inserted into the Mixing container is mounted inclined to its vertical central axis projecting and carrying mixing wing mixing screw, and with a mounted in the connection unit and rotatably driven about the vertical central axis of the mixing container for a rotating movement of the mixing screw along the container wall.
  • the vertically erected, conical mixing container contains at its tapered end a worm shaft which is guided through a spherical rotary head.
  • the bearing housing for the rotary head which consists of joint sockets, is held in a connection unit on the bottom of the mixing container with the aid of receiving parts and gland packings accommodated therein. Since the bearing housing closes the mixing container at the bottom, there is a risk that the bearing abrasion of the worm shaft and the joint sockets will be that in the mixing container Product contaminated.
  • the cone shape of the container which favors intensive mixing of the product, often requires large overall heights, taking into account the batches to be processed, which, with the additional height of a necessary installation and working platform above the building floor, can only be accommodated in specially constructed special buildings.
  • the invention has for its object to improve and design a mixer of the type mentioned in such a way that the construction or room height required for its intended operation and for its accommodation is reduced and its manufacture and installation are simplified.
  • the overall height of the mixer is reduced by dispensing with the small filling volume of the almost tapering lower end region of the conical container and by moving the storage and sealing of the screw shaft into this lower container region.
  • the structural design of the connection unit which can be produced independently of the container and continues its lower end and which receives the rotary head including the worm shaft mounted therein, creates a lower container flange with a diameter that is, for example, twice as large compared to its previous value, with the considerable height savings achieved thereby there is only a negligible volume loss in the mixing container of approx. 15%.
  • connection unit installed between the downwardly shortened mixing container and the lower gear housing is advantageous because it can be prefabricated independently of a large mixing container and pre-assembled together with the mixing screw and its drive.
  • the connection unit can consist of a welded or cast construction and, due to its limited dimensions, can be machined precisely on machines of normal size, so that the inner wall of the cylindrical section is given a fit on a lathe that matches the quality the mechanical seal is adapted to the circumference of the rotary head.
  • connection unit offers the advantage that, in addition to the product outlet, all other openings and flanges for fittings of all types can be attached to their upper conical section, which were previously in the jacket of the mixing container and there subsequently due to the deformations caused by welds and other processing costly straightening work required.
  • An important aspect of the new design is also that the rotating head, which supports the screw shaft and seals towards the mixing container, is attached to the top of the supporting ring, which is supported and supported in the gearbox housing, so that no bearing forces have to be absorbed on the circumference of the rotating head and thus one is provided by mechanical seals careful sealing against the cylindrical portion of the connector unit is available.
  • the rotary head can have an upwardly curved upper surface, to which the lower end of the screw flight or flights is adapted. Because of this curvature, dead spaces that cannot be detected by the mixing screw are avoided and a complete product discharge is achieved when the mixing container is emptied.
  • this upper surface Since the turret, for example, with its spherical upper surface, is placed far into the enlarged mixer space encompassed by the conical section of the connection unit, this upper surface has a relatively large area, the radius of which corresponds to the diameter of the mixing screw, for example. Due to the With a large surface area, it is possible for the rotary head to be heated on its curved upper side by means of a double-jacket design or heating channels attached there. The possibility of heating avoids the formation of condensation and caking of the product. Due to the fact that the worm shaft and the rotary head are located away from the mixing container, a perfect seal of the mixing container and the sterile treatment of the product in continuous operation are guaranteed. By avoiding storage points within the mixing room connected to the product, the end product remains free of impurities.
  • the rotary head and the inclined lead-through housing expediently form a stiffened structural unit which is detachably connected to the top of the support ring.
  • the worm shaft can be mounted in a lower region of the lead-through housing and in the bearing housing fastened to its underside and can be sealed in an upper region facing the mixing container.
  • an upper section of the gear housing and the cylindrical section of the connection unit flanged to the mixing container (10) can be designed with fitting bores which lie opposite the cylindrical outer wall of the rotary head fastened to the support ring with the spacing of the mechanical seal arranged therebetween.
  • the upper conical section of the connection unit can be connected with an upper flange as a continuation to the lower flange of the mixing container and apart from the lateral product outlet all flanges for fittings, sight glasses, inspection openings and the like included.
  • the mixer according to the invention is also further developed in that the motor and the reduction gear of the worm drive are coupled to the worm shaft via a bevel gear set and are arranged on the underside of a base plate which is detachably fastened to the gear housing as part of a cover encapsulating the driven end of the worm gear.
  • the worm drive can be attached to a lower flange of the bearing housing.
  • the height of the removable connection unit and thus the diameter of the lower container opening are expediently dimensioned such that a large angle of inclination can be achieved by pivoting about a connection point of their upper flange with the screw within the mixing container, which angle allows the installation or removal of the mixing screw into or out of the mixing container installed on a working platform.
  • connection unit 14 comprises an upper conical section 15 and a lower cylindrical section 18 with a lower flange 20.
  • the conical section 15 serves to receive all fittings including the product outlet opening 50, the cylindrical section for receiving and sealing the rotary head 42. Since the connection unit 14 is machinable, the container 10 has no wall openings, particularly in a double-jacket or half-pipe coil version a dryer variant would be complex and would always result in a dent in the container wall for welding reasons. Despite extensive straightening work, the screw distance from the container wall would have to be kept large to avoid contact. Such an increased distance would favor the formation of crusts on the container wall during drying and would significantly reduce the drying performance.
  • the flange 20 of the connection unit 14 is firmly connected to a gear housing 22 by means of screws.
  • a support ring 24 designed as a worm wheel on all sides supported and rotatably supported, the toothed outer surface of which engages with a drive worm 25.
  • a rotary head 26 is fastened, for example screwed, on the top of the support ring 24.
  • the rotary head 26 contains a lead-through housing 27 which is inclined by approximately 20 ° with respect to the longitudinal axis of the mixing container 10 and in which the worm shaft 32 is accommodated with bearings 38 and seals 40 surrounding it.
  • a screw spiral 34 is fastened above the rotary head.
  • the mixing screw forms, together with the rotating head 26 and the support ring 24, an inherently rigid structural unit which is supported as a whole by the support ring 24 in the gear housing 22 and performs rotary movements about the vertical central axis of both the mixing container 10 and the support ring 24 which the mixing screw is generally guided in parallel along the conical wall of the mixing container 10.
  • the top 28 of the rotary head 26 forms the lower boundary of the mixing container 10 and is designed to be approximately spherically curved at the top.
  • An outer edge section 30 of the rotary head covers the mechanical seal 44 between the cylindrical outer wall 42 of the rotary head 26 and the machined inner side of the cylindrical wall section 18 of the connection unit 14. From the rotary head 26, the reaction and bearing forces originating from the mixing screw are practically completely in the support ring 24th and transferred into the gear housing 22 supporting it. The absorption of these forces is favored by the fact that the worm shaft 32, together with a bearing housing 48 supporting it at the lower end, extends through the support ring 24, so that the bearing forces of the worm shaft are introduced almost uniformly from above and below into the support ring.
  • the top 28 of the rotary head forming the bottom of the container has a relatively large area, but on the other hand mixed dead spaces are avoided by the conforming shape of the underside of the screw blades.
  • channels 46 formed on the underside which are used for heating the turret, are advantageous configuration options according to FIG. 2.
  • a simple double jacket or a design with soldered or welded heating coils can also be provided for heating the top of the rotary head.
  • the bearing housing 48 On the underside of the bushing shaft 27 receiving the worm shaft 32 of the rotary head 26, the bearing housing 48 is fastened, which encapsulates the lower section of the worm shaft 32 and a bearing which is arranged at a distance from the bearing 38 supported in the bushing housing 27.
  • a bevel gear 66 is wedged onto the lower end of the worm shaft 32 as a connection for the rotary drive according to FIG. 1.
  • the design shown for supporting the lower end of the worm shaft and for connecting the rotary drive is not mandatory; other drive arrangements are also conceivable to the overall height to keep the mixer small while preserving its capacity.
  • a preferably cylindrical cover 70 which encapsulates the bearing end of the worm shaft and the gear transmission, is fastened to the gear housing 22.
  • a basket-shaped support can also be provided for the base plate 68 which carries the worm drive in order to cover the gearwheel gear 64, 66 as a danger point.
  • An output shaft 62 extends from the reduction gear 60, which is arranged in the extension of the central axis X of the mixing container 10 and projects through the base plate 68 in a sealed manner with a bevel gear 64.
  • the mixing screw In the case of the circular movement of the mixing screw introduced via the support ring 24 and the rotary head 26 fastened thereon, the mixing screw is guided around the inner wall of the mixing container 10 at a close distance, this circular movement either being reversible or continuous only in one direction of rotation.
  • a suitable circuit ensures that the drive motor 36 for the rotary drive of the screw, which conveys the mixture in the mixing container from bottom to top, is switched on beforehand.
  • a preferred direction of rotation of the circular movement initiated from the support ring 24 and from the rotary head 26 is such that the one-sided reaction force exerted by the mixture stored mixing screw in any case from the wall of the mixing container 10 inwards, ie is pushed away.
  • the cover 70 or also a basket-like holder for the base plate 68 serves as security and protection for the driven end of the mixing screw, so that moving parts which are dangerous to persons remain constantly encapsulated.
  • the total height of the removable connection unit 14 is designed such that when the lower part 14 is pivoted about a connection point of its upper flange 16 on the lower flange 12 of the mixing container 10, a relatively large inclination angle can be reached together with the mixing screw.
  • the connection point not shown, which is uncovered by loosening the flange connection screws, is located on the right in FIG. 1 on the flange 12, the connection unit with the mixing screw mounted therein can pivot counterclockwise into an inclination position of approximately 45 ° , so that it is possible to leave the auger undivided and to pull it down out of the container installed on a work platform or to insert it into the container from below during assembly.
  • connection unit 14 laterally a product outlet opening, which is normally closed by a cover 50 sealed on its circumference.
  • the cover can be moved by means of a pressure medium cylinder 52 in a longitudinal guide 54 for opening and closing the product outlet.
  • a downwardly angled outlet duct 56 is directly connected to the longitudinal guide 54.
  • one or more inspection openings 58 with devices for sampling or for measuring temperature, humidity, etc. are provided on the circumference of the conical section 15.
  • the rotary head 26 By raising the rotary head 26 as a bearing housing for the mixing screw in the area of larger diameters of the mixing container 10, it is possible to also design the mixing screw with a larger diameter. A larger screw diameter ensures an increased mixture circulation per unit of time. This increased mixing intensity was not possible with previous designs because the screw had to be passed through the bearing housing.
  • the elevation of the rotary head leads to an enlarged base area of the mixing container and consequently to an enlarged upper side 28 of the rotary head 26. This surface enlargement makes it possible, even with small mixer types, to heat the upper side of the rotary head forming the container base and thereby to prevent undesirable condensate formation.
  • FIG. 3 differs from the embodiment of FIG. 1 in that instead of one by Cover 70 encapsulated lower end of the worm shaft 32 whose drive unit 36, 60 is fixed directly to a lower flange 72 of the bearing housing 48.
  • the flanged drive unit 36, 60 moves together with the support ring 24 and the worm shaft 32 about the vertical container axis X during mixer operation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Processing Of Solid Wastes (AREA)
  • External Artificial Organs (AREA)

Claims (10)

  1. Mélangeur conique à vis, comportant une chambre de mélange (10) s'élargissant de façon conique vers le haut, un orifice d'évacuation du produit (56) dans la zone inférieure de la chambre de mélange, une unité de raccordement (14) reliée à l'extrémité inférieure de la chambre de mélange, une tête tournante montée, à son extrémité inférieure, sur paliers dans l'unité de raccordement, tête dans laquelle est montée l'arbre (32), entraîné en rotation, d'une vis mélangeuse, dépassant dans la chambre de mélange, inclinée par rapport à l'axe vertical de cette dernière, et portant des palettes de malaxage, et comportant également un organe de guidage monté dans l'unité de raccordement et entraîné en rotation autour de l'axe central vertical de la chambre de mélange, pour réaliser un mouvement périphérique de la vis mélangeuse le long de la paroi du mélangeur,
       caractérisé par les caractéristiques suivantes :
    - l'unité de raccordement (14) est constituée d'une partie supérieure conique (15) prolongeant la paroi de la chambre de mélange (10) et comportant l'orifice d'évacuation du produit (56) et des pattes d'armature, ainsi qu'une partie cylindrique inférieure (18) ;
    - l'organe de guidage est constitué d'une couronne porteuse horizontale (24), présentant une denture extérieure, cette couronne étant guidée et montée dans un carter de réducteur (22) fixé à la face inférieure de la partie cylindrique (18) et traversée par l'arbre (32) de la vis, comportant un carter de palier (48) qui enveloppe cet arbre;
    - la tête tournante (26), qui est fixée sur la couronne porteuse (24) et dont l'étanchéité, par rapport à la partie cylindrique (18) de l'unité de raccordement (14), est assurée au moyen d'une garniture mécanique d'étanchéité (44), forme, avec sa face supérieure (28), la limite inférieure de la chambre de mélange (10) et comporte un carter traversant (27), incliné par rapport à l'axe médian vertical de la chambre de mélange, dans lequel est installé l'arbre de la vis (32), entouré par des paliers (38) et des joints d'étanchéité (40).
  2. Mélangeur suivant la revendication 1, caractérisé en ce que la tête tournante (26) présente une face supérieure (28) bombée vers le haut, sur laquelle est adaptée l'extrémité inférieure de la palette, ou des palettes de la vis mélangeuse.
  3. Mélangeur suivant la revendication 1 ou la revendication 2, caractérisé en ce que la tête tournante (26) peut, à sa partie supérieure bombée (28), être chauffée par un dispositif à double paroi ou par des canaux de chauffage rapportés à cet endroit.
  4. Mélangeur suivant l'une quelconque des revendications précédentes, caractérisé en ce que la tête tournante (26) et le carter traversant incliné (27) forment ensemble une unité de construction rigidifiée, qui est raccordée, de façon démontable, avec la face supérieure de la couronne porteuse (24).
  5. Mélangeur suivant la revendication 4, caractérisé en ce que l'arbre de la vis (32) est monté dans une zone inférieure du carter traversant (27) ainsi que dans le carter de palier (48) fixé sur la face inférieure de ce dernier, et que son étanchéité est réalisée dans une zone supérieure, tournée vers la chambre de mélange (10).
  6. Mélangeur suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'une partie supérieure du carter de réducteur (22), ainsi que la partie cylindrique (18) de l'unité de raccordement (14), raccordée par bride à la chambre de mélange (10), sont exécutées avec des alésages ajustés, qui sont situés en face de la paroi extérieure cylindrique (42) de la tête tournante (26), fixée sur la couronne porteuse, avec la distance nécessaire pour disposer, dans l'intervalle, la garniture mécanique d'étanchéité (44).
  7. Mélangeur suivant la revendication 6, caractérisé en ce que la partie conique supérieure (15) de l'unité de raccordement (14) est raccordée par une bride supérieure (16), formant prolongement, à la bride inférieure (12) de la chambre de mélange (10), et comporte, en dehors de l'orifice latéral d'évacuation du produit (50), diverses brides pour armatures, hublots, orifices d'inspection, et similaires.
  8. Mélangeur suivant l'une quelconque des revendications précédentes, caractérisé en ce que le moteur (36) et le réducteur (60) du moteur d'entraînement de la vis (60) sont accouplés à l'arbre de la vis (32) par l'intermédiaire d'un train de pignons coniques (64, 66) et qu'ils sont disposés sur la face inférieure d'une plaque de fond (68), qui, en tant que partie d'un capotage (70) enveloppant la partie moteur de la vis mélangeuse (32), est fixée, de façon démontable et étanche, sur le carter du réducteur (22).
  9. Mélangeur suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que l'entraînement de la vis (36, 60) est fixé sur une bride inférieure (72) du carter de palier (48).
  10. Mélangeur suivant l'une quelconque des revendications précédentes, caractérisé en ce que la hauteur de l'unité de raccordement (14) démontable, et, avec elle, le diamètre de l'ouverture inférieure de la chambre, sont dimensionnés pour qu'en faisant pivoter sa bride supérieure (16) autour d'un point de raccordement, on puisse obtenir, avec la vis à l'intérieur de la chambre de mélange (10), un grand angle d'inclinaison qui permette la mise en place de la vis mélangeuse (32, 34) dans la chambre de mélange (10) installée sur une plate-forme de travail, ou son démontage de cette chambre de mélange (10).
EP90111187A 1989-06-23 1990-06-13 Mélangeur Expired - Lifetime EP0403951B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90111187T ATE89190T1 (de) 1989-06-23 1990-06-13 Mischer.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3920589 1989-06-23
DE3920589 1989-06-23
DE3929502 1989-09-06
DE3929502A DE3929502A1 (de) 1989-06-23 1989-09-06 Mischer

Publications (2)

Publication Number Publication Date
EP0403951A1 EP0403951A1 (fr) 1990-12-27
EP0403951B1 true EP0403951B1 (fr) 1993-05-12

Family

ID=25882265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111187A Expired - Lifetime EP0403951B1 (fr) 1989-06-23 1990-06-13 Mélangeur

Country Status (7)

Country Link
US (1) US5026169A (fr)
EP (1) EP0403951B1 (fr)
JP (1) JPH0332732A (fr)
AT (1) ATE89190T1 (fr)
DE (2) DE3929502A1 (fr)
ES (1) ES2041076T3 (fr)
IE (1) IE902267A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103455A1 (de) * 1991-02-06 1992-08-13 Krauss Maffei Ag Mischertrockner
DE4205422C1 (fr) * 1992-02-22 1993-03-04 Braun Ag, 6000 Frankfurt, De
DE4322221C1 (de) * 1993-07-03 1994-08-04 Krauss Maffei Ag Kegelschneckenmischer
US7217028B2 (en) * 2004-03-19 2007-05-15 Back To Basics Products, Llc Off-axis goblet for food mixer
US7422361B2 (en) * 2005-02-04 2008-09-09 Hamilton Beach Brands, Inc. Dispensing blender
EP1832762A1 (fr) * 2006-03-10 2007-09-12 Borealis Technology Oy Palier hybride
JP6765442B2 (ja) * 2016-01-15 2020-10-07 サーブ・ボフォース・ダイナミクス・スウィツァランド・リミテッド 弾頭
CN111916656A (zh) * 2020-07-21 2020-11-10 合肥通用机械研究院有限公司 一种用于三元材料的集成式生产系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2452005A1 (de) * 1974-11-02 1976-05-06 Werner Wagner Fa Mischer
DE2627259C2 (de) * 1976-06-18 1985-02-28 Krauss-Maffei Ag, 8000 Muenchen Kegelschneckenmischer
CH637033A5 (de) * 1978-12-22 1983-07-15 Baumgartner Rolf Ag Konus-schneckenmischer.
US4588301A (en) * 1982-06-29 1986-05-13 Alfred Bolz Conical screw mixer
DE3245935A1 (de) * 1982-12-11 1984-06-14 Sen Alfred Bolz Konus-schneckenmischer
NL8302015A (nl) * 1983-06-06 1985-01-02 Vrieco Zelhem B V Maschf Menger met goed reinigbare afdichtingen, in het bijzonder voor de farmaceutische industrie.
DE3512887A1 (de) * 1985-04-11 1986-10-16 Sen Alfred Bolz Konus-schneckenmischer mit sphaerischem dichtungskoerper in der bodenoeffnung

Also Published As

Publication number Publication date
DE3929502A1 (de) 1991-01-10
IE902267L (en) 1990-12-23
US5026169A (en) 1991-06-25
ATE89190T1 (de) 1993-05-15
IE902267A1 (en) 1991-01-16
ES2041076T3 (es) 1993-11-01
DE59001411D1 (en) 1993-06-17
EP0403951A1 (fr) 1990-12-27
JPH0332732A (ja) 1991-02-13
DE3929502C2 (fr) 1991-04-18

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