EP0737096B1 - Utilisation d'un melangeur pour concher - Google Patents

Utilisation d'un melangeur pour concher Download PDF

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Publication number
EP0737096B1
EP0737096B1 EP95903247A EP95903247A EP0737096B1 EP 0737096 B1 EP0737096 B1 EP 0737096B1 EP 95903247 A EP95903247 A EP 95903247A EP 95903247 A EP95903247 A EP 95903247A EP 0737096 B1 EP0737096 B1 EP 0737096B1
Authority
EP
European Patent Office
Prior art keywords
drum
mixing
tools
mixing tools
shaft
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
EP95903247A
Other languages
German (de)
English (en)
Other versions
EP0737096B2 (fr
EP0737096A1 (fr
Inventor
Roland LÜCKE
Thomas Meyer
Bernhard LÜKE
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.)
LUECKE ROLAND DR
Original Assignee
LUECKE ROLAND DR
Loedige Maschbau Geb GmbH
Gebrueder Loedige Maschinenbau GmbH
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
Family has litigation
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Application filed by LUECKE ROLAND DR, Loedige Maschbau Geb GmbH, Gebrueder Loedige Maschinenbau GmbH filed Critical LUECKE ROLAND DR
Publication of EP0737096A1 publication Critical patent/EP0737096A1/fr
Publication of EP0737096B1 publication Critical patent/EP0737096B1/fr
Application granted granted Critical
Publication of EP0737096B2 publication Critical patent/EP0737096B2/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
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0726—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks

Definitions

  • the invention relates to the use of a mixing device, which consists of a drum with a shaft rotatably mounted therein with drive means, for conching, in particular chocolate masses, several mixing tools being attached to the shaft.
  • Mixing tools have been known for decades and are used in largely horizontally aligned drums to mix bulk goods and liquid masses of any kind.
  • the mixing tools are attached to a shaft that is rotatably mounted in the drum.
  • special attention must be paid to the installation position of the mixing tools in relation to the inner wall of the drum, provided that the mixing tools are to end at a short distance from the inner wall of the drum. Deformation of the material can result in the centrifuge being blocked in the drum if the centrifugal unit (shaft and mixing tools) is not properly designed and assigned to the drum.
  • the mixer of DE 28 02 876 C2 uses a mixture of lighter and heavier particles. By adjusting the mixing tools and arranging the side flanks, the axial conveying effect of the mixing tools becomes larger or smaller. This conveying effect cannot, however, be achieved with the mixing tools shown in the figure of DE 28 02 876 C2, which open in the direction of rotation, since the mixture which has reached between the inner wall of the drum and the mixing tools would bring the mixing process to a standstill. DE 28 02 876 C2 does not contain a reason for the special inclination shown.
  • GB 2 158 365 A refers to the constructive Design of the mixing tools on US 3,027,102, where the outer sides of the mixing tools are curved in accordance with the mixing drum.
  • the mixing device of GB 2 158 365 A designed in this way, a mixture is to be brought into a comminutable state relatively quickly, the original mixture being able to consist of dry powders or other particles, to which liquid is added only later to form a slurry.
  • This originally dry mixture would, however, in the case of the mixing tools of GB 2 158 365 A (FIGS. 2 and 3), which are set at an angle and deviate from US Pat.
  • the object of the present invention is to promote the mixing processes and material restructuring in the product to be conched by using a suitable mixing tool or several suitable mixing tools.
  • this object is achieved by using a mixing device of the type mentioned at the outset, to the shaft of which a plurality of mixing tools are attached which end at a short distance from the inner surface of the drum, the mixing tools, viewed in the direction of rotation of the mixing tools, being further spaced from the inner surface of the drum in the front region are as in the rear area, so that with this arrangement of the mixing tools to the inner surface of the drum A high energy input across the entire drum length into the product to be treated is possible.
  • the use of the mixing device according to the invention has the advantage that the product to be conched between the mixing tool and the inner surface of the drum is subjected to a pressure during one revolution of the mixing tool, which causes a change in the product in the individual grain or in individual volume areas of masses.
  • the "melt" can be influenced in a defined manner.
  • the aroma of such a mass can be influenced.
  • the product configuration can be influenced in a targeted manner by such a measure, in that such a product after treatment in the arrangement according to the invention, e.g. a changed flow behavior, a changed particle surface structure, a changed aroma or a changed color.
  • a product after treatment in the arrangement according to the invention e.g. a changed flow behavior, a changed particle surface structure, a changed aroma or a changed color.
  • An essential part of the use according to the invention is that due to the angle of attack of the mixing elements restructuring of the drum inside the drum in the treatment of masses in the mixer, dryer, granulator and / or reactor is provoked. It is of crucial importance that during treatment the product to be conched is exposed to flat pressure in the end area of a mixing tool. The force acting on the product to be conched increases from the tip area of the mixing tool to the end area.
  • the mixing tools have concave or convex side walls, which taper towards one another in the front area and end in a cutting line, but widen in the rear area, so that the two side walls largely largely in the immediate distance from the inside surface of the drum over one of the rounding of the drum adapted bottom wall are connected to each other, which connects the side walls smoothly and without a paragraph. Restructuring of the product is therefore strongly supported because such mixing tools have a good specific mixing performance.
  • the product in the gap between the mixing tool and the inner surface of the drum is frequently replaced, so that a homogeneous and uniform treatment of the entire product in the drum is ensured.
  • the side surfaces in such mixing tools end, starting from the bottom wall, directed radially inward into the drum space in a section line of the side surfaces.
  • It is a mixing body which is formed, for example, as a hollow body from two side surfaces, a bottom wall and a rear wall.
  • the mixing arm opposite the bottom wall connects to this mixing body.
  • the mixing body and the mixing arm form the mixing tool.
  • the individual mixing tools are arranged on the shaft in such a way that the individual bottom walls sweep over the entire inner surface of the drum when the shaft rotates through 360 °.
  • the mixing tool or tools in the interior of the drum are designed as full mixing tools symmetrical to an axis. This has the advantage that, in the event of displacement movements in the bulk material or in the masses to be treated, the product distribution in the mixing area is divided into the same product parts. This enables high mixing qualities to be achieved.
  • half-mixing tools are arranged on a shaft in the drum. These half-mixing tools are assigned to end walls that limit the drum on both sides. The half-mixing tools are spaced further apart from the inner end wall surface in the front area than in the rear area. Lateral pressing processes can also be generated using the half-mixing tools, which also promote restructuring processes in the product.
  • the bottom wall (s) of the mixing tools can have an additional material coating. This can lead to excessive material abrasion during a mixing and Restructuring process can be prevented.
  • the side surfaces which are directly opposite the end walls of the drum are matched to the contours of the inside walls of the end wall, and the side surfaces of the half-mixing tools are designed to be concave or convex, pointing into the inner region of the drum.
  • the half-mixing tools are thus largely approximated in their function to the full-mixing tools.
  • FIG. 1 shows a side view and in section of a mixing tool 10 as it is fastened on a shaft 11 and how the shaft 11 with the mixing tool 10 is arranged in a drum 12.
  • Several mixing tools 10 on the shaft 11 form a centrifugal machine.
  • the direction of rotation of the centrifugal mechanism is indicated by arrow direction 13.
  • the mixing tool 10 is composed of a mixing body 14 and a mixing arm 15.
  • the mixing arm 15 is either releasably attached to the shaft (screw connection in pocket) or the mixing arm 15 is welded to the shaft 11.
  • the mixing body 14 shown in side view has a tip 16 in the direction of rotation of the centrifugal mechanism in the direction of arrow 13 and the rear end of the mixing body 14 is formed by a rear wall 17.
  • the mixing body 14 in the front region 19 is spaced further apart from a drum inner surface 18 than in the rear region 20. If a product to be mixed and restructured gets into the gap between the mixing body 14 and the drum inner surface 18, the product is produced when the centrifugal drum rotates interparticular frictional energy pressed against the drum inner surface 18.
  • FIG. 2 shows a top view and in section of a drum 12 with an end wall 21 and an inner region 22.
  • the shaft 11 is mounted in the end walls 21, only one end wall 21 being shown in FIG. 2.
  • the storage itself is shown very schematically.
  • a full mixing tool 23 and a half mixing tool 24 are arranged on the shaft.
  • Mixing tools 10 mean both full mixing tools 23 and half-mixing tools 24.
  • the spacing of the full mixing tool 23 from the half mixing tool 24 does not correspond to the actual arrangement of these tools on the shaft 11.
  • the mixing tools 23, 24 are always offset in the circumferential direction. The actual arrangement of the mixing tools 23, 24 seen over the circumference of the shaft 11 cannot be seen in FIG. 2.
  • the full mixing tool 23, of which several are arranged on the shaft 11 depending on the size of the drum 12, is constructed symmetrically with respect to an axis 25.
  • the full mixing tool 23, a ploughshare blade is composed of a side surface 26 and a side surface 27.
  • the two side surfaces 26, 27 are connected to one another via a bottom wall 28.
  • the bottom wall 28 is smooth and modeled on the contour of the drum inner surface 18.
  • the transition area from the bottom wall 28 to the side walls 26, 27 is smooth and has no heels.
  • the side walls 26 and 27 converge in the tip 16. Contrary to the direction of rotation of the shaft 11, the bottom wall 28 widens and the bottom wall 28 and the side walls 26, 27 are connected together in the rear region via the rear wall 17.
  • the full mixing tool 23 is connected to the shaft 11.
  • the side walls 26, 27 are concave in FIG. 2, as is usual with ploughshare blades.
  • the full mixing tool 23 is spaced further apart from the inner drum surface 18 in the area of the tip 16 than in the area of the rear wall 17.
  • the width of the full mixing tool 23 in the area of the rear wall 17 results from the specification of how large the interparticle friction energy generated in the product to be processed should be, should be.
  • the half-mixing tool 24 is composed of a concave side wall 29, a rear wall 30, a bottom wall 31 and a side wall 32, which is modeled on the contour of the front wall 21.
  • the side wall 29, the rear wall 30, the bottom wall 31 and the side wall 32 together form a hollow body which is fastened to the shaft 11 via a mixing arm 33.
  • the side wall 29, the rear wall 30 and the bottom wall 31 form a tip 32 'in the direction of rotation of the shaft 11.
  • the direction of rotation of the shaft 11 is indicated by arrow 34 in FIG. 2.
  • the half-mixing tool 24 is further away from the inner surface of the end wall 21 than in the rear side area 36. If the product to be processed enters the gap between the half-mixing tool 24 and the inner surface of the end wall 21, interparticular frictional energy is generated in the product to be treated.
  • FIG. 3 shows a perspective view of a full mixing tool 23, as shown in different views in FIGS. 1 and 2.
  • the full mixing tool 23 is formed from curved and concave side walls 26 and 27, which merge with the rear wall 17 into the mixing arm 15. In the area from the tip 16 to the mixing arm 15 The full mixing tool 23 ends in a section line 37 of the side walls 26, 27.
  • the side walls 26, 27 expand towards the rear wall 17 and are connected to one another via the bottom wall 28.
  • the bottom wall 28 is also connected to the rear wall 17.
  • the side walls 26, 27, the bottom wall 28 and the rear wall 17 merge seamlessly into one another, and also in the region of the mixing arm 15 the side walls 26, 27 and the rear wall 17 merge seamlessly into the mixing arm 15.
  • FIG. 4 also shows a perspective view of a half-mixing tool 24, as it runs for example on the end wall 21 of FIG. 2.
  • the half-mixing tool 24 is formed from a curved concave side wall 29, a flat side wall 32, a bottom wall 31 and a rear wall 30.
  • the walls merge seamlessly into the mixing arm 33 in the lower region and a cutting line (edge) 38 between the individual walls (side walls, rear wall, bottom wall) is smooth and has no heels.
  • the bottom walls 28, 31 merge into the adjacent walls without a step, forming a share edge.
  • a mixing tool 10 is fastened among several on a shaft 11.
  • the shaft 11 is rotatably mounted on both sides in end walls 21 in a horizontally aligned drum 12.
  • the mixing tools 10 end at a short distance from the inner drum surface 18 and the shaft 11 has drive means which drive the mixing tools 10 in the direction of the arrow 13.
  • the mixing tools 10 (full mixing tools, half mixing tools) are in the circumferential direction of the shaft 11 in front area 19 further apart from the drum inner surface 18 than in the rear area 20.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Confectionery (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Accessories For Mixers (AREA)
  • Food-Manufacturing Devices (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

Un outil mélangeur (10) parmi plusieurs est fixé sur un arbre (11) qui tourne dans un tambour horizontal (12) fixé de chaque côté dans les parois d'extrémités (21). Ces outils mélangeurs (10) s'arrêtent peu avant la paroi intérieure (18) du tambour et l'arbre (11) dispose de moyens moteurs qui entraînent les outils mélangeurs (10) dans le sens de la flèche (13). Ces outils mélangeurs (10) (outils complets, outils incomplets) sont plus éloignés de la surface intérieure (18) du tambour à l'avant (19) qu'à l'arrière (20) dans le sens de la circonférence de l'arbre (11).

Claims (7)

  1. Utilisation d'un dispositif mélangeur qui est composé d'un tambour (12) muni d'un arbre (11) qui est monté rotatif dans ce tambour et est lui-même muni de moyens d'entraînement, pour le malaxage, en particulier de pâtes de chocolat, plusieurs outils mélangeurs (10) étant fixés à cet arbre (11), outils mélangeurs qui se terminent à petite distance de la surface intérieure (18) du tambour, et les outils mélangeurs (10) étant plus éloignés de la surface intérieure (18) du tambour dans la région avant (19) que dans la région arrière (20), considéré dans le sens de la rotation des outils mélangeurs, de sorte qu'avec cette disposition des outils mélangeurs (10) par rapport à la surface intérieure (18) du tambour, il est possible d'obtenir un apport d'énergie dans le produit à traiter qui est à la fois élevé et réparti sur toute la longueur du tambour.
  2. Utilisation selon la revendication 1, caractérisée en ce que les outils mélangeurs (10) présentent des parois latérales (26, 27 ; 29, 32) concaves ou convexes qui, dans la région avant (19), se rapprochent l'une de l'autre en pointe et se terminent par une ligne d'intersection (37, 38), tandis que, dans la région arrière (20), elles se terminent en s'élargissant et en ce que les deux parois (26, 27 ; 29, 32) sont réunies, à proximité immédiate de la surface intérieure (18) du tambour, par une paroi de fond (28) correspondant de très prés à l'arrondi du tambour, et qui relie les parois latérales (26, 27 ; 29, 32) l'une à l'autre sans rupture de ligne ni redan.
  3. Utilisation selon une des revendications 1 et 2, caractérisée en ce que l'outil mélangeur ou les outils mélangeurs (10) sont disposés sur l'arbre (11) de telle manière que la ou les paroi(s) de fond (28) balaient toute la surface intérieure (18) du tambour en un tour de 360° de l'arbre (11).
  4. Utilisation selon une des revendications 1 à 3, caractérisée en ce que l'outil mélangeur ou les outils mélangeurs (10) situé(s) dans la région intérieure du tambour (12) sont constitués par des outils mélangeurs complets (23) symétriques par rapport à un axe (25).
  5. Utilisation selon la revendication 1, caractérisée en ce que les outils mélangeurs (10) sont disposés sur un arbre (11) dans un tambour (12) possédant des parois frontales (21) qui limitent le tambour (12) orienté sensiblement horizontalement et en ce que l'outil ou les outil(s) mélangeur(s) (10) qui sont immédiatement adjacents aux parois frontales (21) sont des demi-outils mélangeurs (24) qui sont plus éloignés de la surface intérieure de la paroi frontale dans la région avant (35) que dans la région arrière (36).
  6. Utilisation selon une des revendications 2 à 5, caractérisée en ce que la paroi de fond ou les parois de fond (28, 31) présentent un revêtement de matière additionnel.
  7. Utilisation selon la revendication 5 ou 6, caractérisée en ce que les surfaces latérales des outils mélangeurs (10) qui font directement face aux parois frontales (21) du tambour (12) sont adaptées aux parois frontales (21) et sont distantes de celles-ci, et les surfaces latérales des outils mélangeurs (10) qui sont dirigées vers la région intérieure (22) du tambour (12) sont de forme concave ou convexe.
EP95903247A 1993-12-30 1994-12-21 Utilisation d'un melangeur pour concher Expired - Lifetime EP0737096B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4344995A DE4344995A1 (de) 1993-12-30 1993-12-30 Mischwerkzeug
DE4344995 1993-12-30
PCT/DE1994/001513 WO1995017951A1 (fr) 1993-12-30 1994-12-21 Outil melangeur de conchage

Publications (3)

Publication Number Publication Date
EP0737096A1 EP0737096A1 (fr) 1996-10-16
EP0737096B1 true EP0737096B1 (fr) 1997-07-23
EP0737096B2 EP0737096B2 (fr) 2000-12-27

Family

ID=6506541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95903247A Expired - Lifetime EP0737096B2 (fr) 1993-12-30 1994-12-21 Utilisation d'un melangeur pour concher

Country Status (6)

Country Link
US (1) US5707145A (fr)
EP (1) EP0737096B2 (fr)
JP (1) JP3019268B2 (fr)
DE (2) DE4344995A1 (fr)
ES (1) ES2107296T3 (fr)
WO (1) WO1995017951A1 (fr)

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US8641263B2 (en) 2008-11-24 2014-02-04 Kraft Foods Group Brands Llc Method and apparatus for continuous processing of whole muscle meat products
US8187651B2 (en) * 2008-11-24 2012-05-29 Kraft Foods Global Brands Llc Method and apparatus for continuous processing of whole muscle meat products
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Also Published As

Publication number Publication date
DE59403486D1 (de) 1997-08-28
US5707145A (en) 1998-01-13
ES2107296T3 (es) 1997-11-16
EP0737096B2 (fr) 2000-12-27
DE4344995A1 (de) 1995-07-06
EP0737096A1 (fr) 1996-10-16
JP3019268B2 (ja) 2000-03-13
JPH09509359A (ja) 1997-09-22
WO1995017951A1 (fr) 1995-07-06

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