EP0036985B1 - Dispositif pour obtenir un mélange d'au moins un composant solide pétrissable en morceaux et d'au moins un composant liquide - Google Patents

Dispositif pour obtenir un mélange d'au moins un composant solide pétrissable en morceaux et d'au moins un composant liquide Download PDF

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Publication number
EP0036985B1
EP0036985B1 EP81101886A EP81101886A EP0036985B1 EP 0036985 B1 EP0036985 B1 EP 0036985B1 EP 81101886 A EP81101886 A EP 81101886A EP 81101886 A EP81101886 A EP 81101886A EP 0036985 B1 EP0036985 B1 EP 0036985B1
Authority
EP
European Patent Office
Prior art keywords
tool
apertured plate
accordance
screw
mixing
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
Application number
EP81101886A
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German (de)
English (en)
Other versions
EP0036985A1 (fr
Inventor
Anton Thaler
Walter Germann
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Publication of EP0036985A1 publication Critical patent/EP0036985A1/fr
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Publication of EP0036985B1 publication Critical patent/EP0036985B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
    • C11D13/14—Shaping
    • C11D13/18—Shaping by extrusion or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/451—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by means for moving the materials to be mixed or the mixture

Definitions

  • the invention relates to a device for producing a mixture of at least one crushable lumpy solid and at least one liquid component, in particular for use in the refinement of soap, with a rotatable mixing screw for mixing the components, with at least one input device for the lumpy solid, with at least a feed device for the liquid constituents and with an output device connected to the mixing screw with at least one stationary perforated plate and a rotatable tool arranged directly therefrom with blades projecting radially outwards.
  • the ingredients are often granular solids, liquids and / or emulsions.
  • the end product can be a free-flowing or viscous emulsion or a plastic mass.
  • Known devices for accomplishing the mixing are designed with due regard to the respective mixing problem and often have a screw driven by a rotary drive and a device connected to the screw for continuing the comminution and mixing process started by the screw.
  • a device of the type mentioned at the outset is disclosed in US-A-2,640,033 (FIG. 13).
  • this device suitable for the production of soap for the continuous treatment and extrusion of plasticizing materials, liquid constituents are added to the material and intimately mixed and homogenized with it.
  • the aim is also to create a network-like structure with air spaces in the material.
  • the material is first pre-shredded and compacted in a first mixing screw and further shredded at the outlet end of the mixing screw in a shredding head rotating with the latter.
  • Liquid is fed via a feed head connected to the comminution head from the end of the device remote from the mixing screw into a mixing and homogenizing space and mixed and homogenized in this by means of resilient blades and then ejected via a spreading plate, a pressure plate and a cutting head into a pressurized end chamber and fed by this to a second mixing screw. This is where further homogenization and densification take place.
  • the material is pressed through a perforated plate by means of a tool rotating with the mixing screw and with the simultaneous supply of compressed gas. Overall, this facility is complicated and expensive.
  • a similar device suitable for the manufacture of soap is described in FR-A-2 277 887.
  • the liquid component is applied to soap material that has already been processed in a homogenizing screw with a perforated plate connected downstream and cut into pieces by an additional knife, which is subsequently processed in a further pressure build-up screw.
  • a permanent marbling i.e. no complete homogenization sought.
  • DE-C-618 003 Another device for processing soap is known from DE-C-618 003 and has a screw switched between individual rolling stages. However, no liquid components are added to this device.
  • Direction for perfuming a soap mass is fed to a rolling mill via a feed hopper and rolled into thin soap sheets in the latter.
  • the object of the invention is to provide a device of the type mentioned, which is simple, inexpensive and compact, which is also suitable for processing plastic granules, in particular soap granules in mixtures, an intimate mixing thereof with other constituents, e.g. Liquids or emulsions, and creates a perfectly homogeneous end product.
  • the invention has the following advantages.
  • the homogenization process is continued in the subsequent homogenization stage, ie in the output device.
  • Such a homogenization stage is extremely effective in a small space and an arbitrarily fine degree of homogenization can be achieved by stringing together several homogenization stages.
  • the simplicity of the furnishings is impressive. This saves costs and space.
  • the device is suitable for processing various plastic granules, and especially for perfuming soap.
  • the homogenizing effect of the mixing screw is favored if the outlet opening of the feed device feeds the liquid components into the drop section between the metering device and the mixing screw.
  • the further tool is preferably a cutting tool arranged after the perforated plate. This is advantageously attached to the worm shaft in a removable manner and rotates together with it during operation. This tool is easily accessible for cleaning purposes and may be necessary with some mixtures in order to separate the escaping product.
  • the further tool can also be a shifting tool arranged at a distance in front of the calving tool.
  • the shifting tool is removably attached to the worm shaft and rotates with it during operation. It effects a layering of the mixture which requires homogenization and is also easily accessible for cleaning purposes.
  • the output device contains a further perforated plate with a larger hole diameter, which is arranged in front of the former perforated plate and the tools assigned to it.
  • the shifting tool and the calving tool are arranged between two perforated plates, the shifting tool simultaneously serving as a cutting tool for the first perforated plate.
  • a further calving tool can be arranged directly in front of the further perforated plate and optionally a cutting tool after the first mentioned perforated plate, the wings of successive tools being offset in the circumferential direction.
  • a particularly strong homogenizing effect is achieved if at least one of the wings of the calving tool has a front intake surface facing the perforated plate, which in the direction of rotation gives the product a component of movement in a flow direction during operation and presses it through the perforated plate, and one connected to the intake surface , in the direction of rotation rear calving surface, which is arranged at a short distance from the perforated plate and has a homogenizing effect on the mixture which has not passed through the perforated plate.
  • the feed surface can be a flat surface which is arranged at an acute angle to the perforated plate.
  • the calving surface is advantageously a flat surface arranged parallel to the perforated plate.
  • the rotating tools rotate together with the worm shaft and are preferably detachably fastened to this.
  • the or each perforated plate is preferably removable in the screw housing and secured against rotation.
  • This mixing screw can have fewer than four turns, preferably two turns. A ratio of 1: 1 between the diameter of the mixing screw and its length is favorable.
  • the mixing screw can be arranged vertically, with the horizontal conveying direction of a metering device upstream of it. This makes a space-saving design possible, which allows the device to be attached to a rolling mill above the rolls, the output device feeding the rolls.
  • a short vertically arranged mixing screw with only a few turns is already known from FR-A-913 483.
  • this known mixing screw is used for homogenizing a mixture of solids which contain crystals (sugar), the crystals being melted by the action of heat.
  • heat is provided during the formation of the mixture and during the pressing through the perforated plate, the melting temperature being set by a liquid flowing through the jacket surrounding the screw cylinder.
  • the proportion of the melting crystals compared to the non-melting further constituents starch, etc.
  • the system according to FIG. 1 has a metering device 1, a mixing device 2 and a rolling mill 3.
  • the metering device 1 is used to meter the amount of the granules to be fed and is fed with soap granules via a feed funnel 4. It has a worm housing 5, a worm shaft 6 rotatably mounted therein and a metering worm 7 fixedly arranged on the worm shaft 6.
  • the worm shaft 6 is driven by a first drive motor 9 via a first sprocket gear 8.
  • the mixing device 2 is connected to the metering device 1. This has a worm housing 10, a worm shaft 11 rotatably mounted therein and a mixing worm 12 fixedly arranged on the worm shaft 11.
  • a feed device 17 for the perfumed dispersion acted upon by a pump 16 opens into the mixing device 2, its outlet opening 18 being arranged at the inlet end of the mixing screw 12 in the area of the solids inlet.
  • the pump 16 is driven by the metering worm shaft 6 via a second sprocket gear 19.
  • a homogenizing device 20 described in detail below is provided as the output device. This is arranged above the rolling mill 3, which has an inlet hopper 21, three rotatably arranged rollers 22 and a scraper 23. The mixture emerging from the homogenizing device 20 falls through the inlet funnel 21 into the first nip 24 and is carried over the last two rollers 22 and the scraper 23 as piled soap.
  • the soap granulate 26 falls freely from the metering screw 7 at the input end of the mixing screw 12 into the screw chamber 25.
  • the outlet opening 18 in the feed device 17 opens into the screw chamber 25 in this area and, in the free case, adds the dispersion 27 to the loose stream of soap granules.
  • the inspection hole 45 is open to the surroundings.
  • the worm housing 10 is provided with straight or helical cables 46 which increase the friction of the inner wall.
  • a first variant of the homogenizing device 20 is shown at the outlet end of the mixing device 2. This device, shown in an exploded view in FIG.
  • the 3 has a saponification tool 28 connected to the mixing screw 12 with three wings 29 projecting in the radial direction, a perforated plate 30 arranged at a small axial distance from the vanes 29, and one arranged close to the perforated plate 30 Cutting tool 31 with cutting blades 32 projecting in the radial direction.
  • the two tools, the ointment tool 28 and the cutting tool 31 are detachably fastened on the mixing screw shaft 11 by means of the screw nut 33 and rotate together with the mixing screw 12 during operation.
  • the wings 32 are arranged offset to the wings 29 in the circumferential direction.
  • the perforated plate 30, however, is detachably held in the worm housing 10 and secured against rotation.
  • a locking ring 34 is provided at the output end of the screw housing 10. This is detachably held in the screw housing 10 by means of a bayonet catch.
  • a part of the perforated plate 30 shown in cross section has holes 35 through which the mixture exits the mixing device 2.
  • the wings 29 of a saponification tool 28 can be seen in cross section at a short distance from the same.
  • the direction of movement of the wing 29 in operation is indicated by an arrow 36.
  • Essential for the function of such a wing 29 is its intake surface 37 facing the perforated plate 30, which is front in the direction of rotation, and its connected, in the direction of rotation rear saponification surface 38.
  • the intake surface 37 is arranged at an acute angle to the surface 39 of the perforated plate 30 , flat surface, the inclination of which is selected such that it gives the component which has already been mixed and prehomogenized by the mixing screw 12, a movement component in the axial flow direction and pushes it through the perforated plate 30.
  • a significant part of the product gets into the space 40 between the perforated plate 30 and the flat saponing surface 38 opposite to it and parallel to it due to the wedge action of the pull-in surface 37 and is compressed into a thin layer.
  • the product is subjected to an ointment effect and the dispersion 27 contained therein is evenly distributed.
  • a splitting tool 41 with three wings 42 protruding in the radial direction is connected upstream of the calving tool 28. These are arranged offset from the wings 29 of the ointmenting tool 28 in the circumferential direction by 60 ° each and cause the product to be shifted before it is exposed to the action of the ointmenting tool 28. This improves the homogenizing effect.
  • the perforated plate 30 is not followed by a cutting tool 31, for example in order to obtain a marbling of the soap.
  • the third variant of the homogenizing device shown in FIG. 6 has two perforated plates 30, 43.
  • the second perforated plate 43 is preceded by a saponification tool 28 and the latter by a conversion tool 41.
  • the first perforated plate 30 is arranged immediately after the mixing screw 12 (not visible in FIG. 6) and has holes 35 of larger diameter than the second perforated plate 42. This improves the homogenizing effect.
  • the homogenizing effect of such a homogenizing device 20 can be improved by increasing the number of stages lined up.
  • two such levels have already proven to be very effective.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (12)

1. Dispositif pour produire un mélange d'au moins une matière solide (26) morcelée qu'on peut broyer et d'au moins un composant liquide (27), en particulier pour une utilisation lors de la transformation de savon, comportant une vis sans fin rotative de mélange (12) pour mélanger les composants, au moins un dispositif d'entrée (1) destiné à la matière solide morcelée (26), au moins un dispositif d'alimentation (17) destiné aux composants liquides (27) et un dispositif de sortie raccordé sur la vis de mélange (12) et ayant au moins une plaque stationnaire perforée (30; 43) et un outil (28) rotatif disposé immédiatement en amont de celle-ci et comportant des aubes (29), dépassant radialement vers l'extérieur, dispositif caractérisé par la combinaison des caractères distinctifs suivants:
a) l'orifice de décharge (18) du dispositif d'alimentation (17) pour les composants liquides se trouve immédiatement en amont de l'entrée des matières solides (26) dans l'espace de vis mélangeuse (25),
b) la plaque perforée (30; 43) du dispositif de sortie est associée à au moins un autre outil rotatif (31; 41 ) ayant des aubes (32; 42) dépassant radialement vers l'extérieur, les aubes d'outils (28, 31; 41, 28) rotatifs qui se suivent étant alors disposées de manière à être décalées l'une par rapport à l'autre dans le sens périphérique, et
c) l'outil (28) disposé immédiatement en amont de la plaque perforée (30; 43) est réalisé comme un outil d'empâtement.
2. Dispositif selon la revendication 1, caractérisé en ce que la vis mélangeuse (12) est une vis mélangeuse courte ayant moins de quatre spires, de préférence deux spires et un rapport entre diamètre et longueur d'environ 1 : 1.
3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que l'autre outil est un outil de coupe (31) disposé après la plaque perforée.
4. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que l'autre outil est un outil (41) de regroupage disposé à une certaine distance en amont de l'outil d'empâtement (28).
5. Dispositif selon la revendication 4, caractérisé en ce que dans le dispositif de sortie, il y a une autre plaque perforée (30) ayant un diamètre de perforation plus grand et qui est disposée en amont de la première plaque perforée (43) et des outils (28, 41) associés à celle-ci.
6. Dispositif selon la revendication 5, caractérisé en ce qu'on dispose un autre outil d'empâtement (28) immédiatement en amont de l'autre plaque perforée (30) et éventuellement un outil de coupe en aval de la première plaque perforée (43).
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'au moins une des aubes (29) de l'outil d'empâtement (28) comporte une face de rentrée (37) tournée vers la plaque perforée (30; 43) et se trouvant en avant dans le sens de rotation, qui impartit au mélange pendant le fonctionnement une composante de mouvement dans sa direction d'écoulement et pousse le mélange à travers la plaque perforée (30; 43), ainsi qu'une face d'empâtement (38) raccordée sur la face de rentrée (37) et se trouvant en arrière dans la direction de rotation, qui est disposée à une faible distance de la plaque perforée (30; 43) et qui agit de façon à homogénéiser le mélange qui n'est pas passé à travers la plaque perforée (30; 43).
8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les outils rotatifs (28, 31, 41) tournent, respectivement, ensemble avec l'arbre de la vis (11) et de préférence sont fixés à celle-ci de manière à pouvoir se démonter.
9. Dispositif selon la revendication 8, caractérisé en ce que la plaque perforée ou chaque plaque perforée (30; 30, 43) est introduite dans le boîtier de la vis mélangeuse (10) de façon à pouvoir se démonter et est bloquée en rotation.
10. Dispositif selon la revendication 9, caractérisé par une bague de blocage (34) fixée de manière à pouvoir se démonter à l'extrémité de sortie du boîtier de vis mélangeuse (10) au moyen d'un encliquetage à baïonette.
11. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est installé dans un mécanisme à cylindres (3), sur les cylindres (22) de ce dernier, de manière que le dispositif de sortie (20) du dispositif de mélange alimente les cylindres.
12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la vis mélangeuse (12) est disposée perpendiculairement.
EP81101886A 1980-03-21 1981-03-13 Dispositif pour obtenir un mélange d'au moins un composant solide pétrissable en morceaux et d'au moins un composant liquide Expired EP0036985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2230/80 1980-03-21
CH223080A CH646878A5 (de) 1980-03-21 1980-03-21 Einrichtung zur erzeugung eines gemisches aus feststoffen und fluessigen bestandteilen.

Publications (2)

Publication Number Publication Date
EP0036985A1 EP0036985A1 (fr) 1981-10-07
EP0036985B1 true EP0036985B1 (fr) 1984-05-30

Family

ID=4228908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101886A Expired EP0036985B1 (fr) 1980-03-21 1981-03-13 Dispositif pour obtenir un mélange d'au moins un composant solide pétrissable en morceaux et d'au moins un composant liquide

Country Status (3)

Country Link
EP (1) EP0036985B1 (fr)
CH (1) CH646878A5 (fr)
DE (1) DE3163828D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680132A (en) * 1982-03-26 1987-07-14 Lever Brothers Company Processing detergent bars with a cavity transfer mixer to reduce grittiness
US4840810A (en) * 1985-03-27 1989-06-20 Lever Brothers Company Process for the preparation of an edible fat-containing product
US4844928A (en) * 1985-03-27 1989-07-04 Lever Brothers Company Process for the preparation of an edible fat-containing product

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005333A (en) * 1930-06-24 1935-06-18 Lever Brothers Ltd Process for refining a soap base
DE618003C (de) * 1932-06-18 1935-08-30 J M Lehmann Fa Vorrichtung zur Verarbeitung von Seife oder anderen Massen
FR913483A (fr) * 1944-03-28 1946-09-11 Stijfsel En Glucose Fabriek Sa Procédé et appareil d'homogénéisation d'un mélange de substances solides
US2640033A (en) * 1947-12-13 1953-05-26 Micro Proc Equipment Inc Process and apparatus for continuously processing and extruding plasticizing materials
FR1085648A (fr) * 1952-10-22 1955-02-04 Machine comprenant au moins un organe entraîné en rotation par un axe en regard d'au moins un organe
US4011170A (en) * 1974-07-10 1977-03-08 John Harlan Pickin Marbled detergent bars

Also Published As

Publication number Publication date
DE3163828D1 (en) 1984-07-05
EP0036985A1 (fr) 1981-10-07
CH646878A5 (de) 1984-12-28

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