EP2673075B1 - Device for the continuous treatment of at least one raw material, treatment installation and use of such a device - Google Patents

Device for the continuous treatment of at least one raw material, treatment installation and use of such a device Download PDF

Info

Publication number
EP2673075B1
EP2673075B1 EP12703785.1A EP12703785A EP2673075B1 EP 2673075 B1 EP2673075 B1 EP 2673075B1 EP 12703785 A EP12703785 A EP 12703785A EP 2673075 B1 EP2673075 B1 EP 2673075B1
Authority
EP
European Patent Office
Prior art keywords
mixing
raw material
solid
vat
screw
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.)
Active
Application number
EP12703785.1A
Other languages
German (de)
French (fr)
Other versions
EP2673075A1 (en
Inventor
Daniel Durand
Jérôme MOTTAZ
Luis Asensio
Didier SALQUES
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.)
Clextral SAS
Original Assignee
Clextral SAS
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 Clextral SAS filed Critical Clextral SAS
Publication of EP2673075A1 publication Critical patent/EP2673075A1/en
Application granted granted Critical
Publication of EP2673075B1 publication Critical patent/EP2673075B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B01F27/0721—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis parallel with respect to the rotating axis
    • 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
    • B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
    • B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
    • B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
    • 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
    • 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
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • 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
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • 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
    • B01F27/62—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis comprising liquid feeding, e.g. spraying means
    • 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
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
    • 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
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/725—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in respective separate casings, e.g. one casing inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/824—Combinations of dissimilar mixers mixing simultaneously in two or more mixing receptacles
    • 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
    • B01F35/75—Discharge mechanisms
    • B01F35/752—Discharge mechanisms with arrangements for converting the mechanism from mixing to discharging, e.g. by either guiding a mixture back into a receptacle or discharging it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/30—Mixing gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids

Definitions

  • the present invention relates to a device for the continuous treatment of at least one food or non-food raw material, and more particularly the treatment of solid-liquid mixtures, such as, for example, particulate and / or pulverulent media with aqueous or organic media. , or solid-gas mixtures, as well as solid-liquid-gas mixtures.
  • solid-liquid mixtures such as, for example, particulate and / or pulverulent media with aqueous or organic media.
  • solid-gas mixtures as well as solid-liquid-gas mixtures.
  • the solids are for example particles, grains, flakes, flours or other, but also fragmented lignocellulosic products for mixing and impregnation under temperature control.
  • the treatment of this type of raw material consists for example of mixing and / or preheating, and / or hydration, and / or precooking and / or cooking of the raw material.
  • This kind of treatment is carried out for example in a device comprising an elongated tank, single or double wall and can be pressurized or not.
  • This tank determines a mixing chamber comprising, respectively at opposite ends of the tank, at least one inlet of the raw material and at least one outlet of the treated material.
  • the tank contains, between the inlet port and the outlet port, one or two parallel shafts provided with blades that are generally separate and tilting. These blades are intended for agitating the raw material and by their inclination to carry out mixing and to advance this material from the inlet orifice to the outlet orifice.
  • the tank may include orifices or injectors of liquid, such as water or oil or any other liquid, or steam for heating and moistening the raw material.
  • EP-A-0 264 069 which can be regarded as the state of the art closest to the object of appended claim 1 and on which the preamble of claim 1 is based, provides an example of such a continuous treatment tank, see also the document US 3403824 A1 .
  • the intensity of the mixing and the rate of filling in the tank are adjusted by the inclination of the blades moving in the mixing chamber and the speed of rotation of the shafts.
  • the orientation of the blades can be positive if turning them, tend to advance the material of the inlet port to the outlet and the orientation of these blades can be negative if, on the contrary, the blades tend to retard the material in its progression inside the mixing chamber.
  • This poor filling rate causes a bad exchange between the steam, the liquids and the raw material so that the efficiency of the device is not excellent.
  • the efficiency of the treatment device is adjusted by the mechanical modification of the orientation of the blades of the trees.
  • This adjustment blade by blade is a long and tedious operation based on the expertise of the speaker and it imposes a stop of the device and a complete cleaning thus leading to each setting a significant loss of production.
  • the compromise of the orientation of the blades in the negative sense and in the positive direction to ensure a sufficient treatment of the raw material does not allow a fast and effective self-emptying of the device and requires a human intervention of heavy cleaning at each change of formulation or production.
  • the object of the invention is to propose a continuous pretreatment device for a raw material which avoids these drawbacks and which makes it possible to improve the yield.
  • the subject of the invention is therefore a device for the continuous treatment of a raw material formed of solid-liquid or solid-gas or solid-liquid-gas mixtures, as defined in claim 1.
  • the invention also relates to a treatment installation, as defined in claim 12.
  • the invention further relates to uses of the aforementioned treatment device as defined in claims 13 to 16.
  • a continuous treatment device 10 of a raw material consisting of a raw material food or non-food, and for example solid-liquid mixtures, solid-gas mixtures or solid-liquid-gas mixtures.
  • the device 10 can be more generally used for continuously treating and / or conditioning at least one product mixture in two different states among solid, liquid and gaseous states.
  • the device 10 comprises a tank 11 of elongate shape and determining a mixing chamber 15 having, at a first end, at least one inlet port 12 of the raw material and, at a second end, an outlet port 13 of the treated matter.
  • material introduced into the mixing chamber 15 through the inlet port 12, runs through this mixing chamber from one of its ends to its opposite end along the tank, where it exits the mixing chamber through the outlet orifice 13.
  • the mixing chamber 15 of the tank 11 contains at least one agitator shaft 16 provided with blades 17.
  • the blades 17 of the shafts 16 allow to stir the raw material so as to continuously mix it while advancing from the inlet port 12 to the outlet port 13.
  • the mixing chamber 15 contains two parallel agitating shafts 16 each provided with blades 17.
  • Each shaft 16 is driven by an electric motor 18 placed outside the tank 11.
  • the tank 11 is constituted by a tube-shaped eight, as shown in the figure 2 .
  • the two shafts 16 are provided to achieve a dispersive axial mixing of the material between the inlet orifice 12 and the outlet orifice 13: in this case, as indicated in FIG. figure 2 , the shafts 16 are, in use, driven in respective opposite directions of rotation and at least some of their respective blades 17 have a radial dimension strictly greater than half the distance between the shafts 16, ie half of their center distance. In this way, the material situated approximately halfway between the shafts 16 is agitated both by blades 17 of one of the shafts in a direction peripheral to this shaft and by blades 17 of the other shaft in a direction peripheral to the latter, of opposite direction.
  • this tank has the shape of a single tube.
  • the tank 11 comprises a single or double wall and this tank 11 may be pressurized or not.
  • the blades 17 comprise a triangle-shaped end 17a and the positioning of these blades 17 is made so as to have a surface covering allowing a good dispersive mixing and autoraclage of the wall of the tank 11.
  • the vessel 11 comprises a vent 19 and at least one liquid injection orifice 20, such as, for example, water, oil or any other liquid and / or gas, such as steam for example, to heat and moisten the raw material.
  • liquid injection orifice 20 such as, for example, water, oil or any other liquid and / or gas, such as steam for example, to heat and moisten the raw material.
  • the treatment device 10 also comprises a bottom mixing screw 25, in other words arranged in the mixing chamber 15, at the bottom thereof, as clearly visible on the Figures 1 and 2 .
  • This mixing screw 25 is rotated by an electric motor 26 disposed outside the tank 11.
  • the mixing screw 25 is designed to be rotated at least in opposition to the advancement of the feed material.
  • This mixing screw 25 is disposed below and parallel to the shafts 16 and extends substantially between the orifices 12 and 12 respectively.
  • the processing device 10 also comprises a complementary screw 30 with a double direction of rotation disposed below the outlet orifice 13 of the tank 11 and extending perpendicularly to the screw
  • the complementary screw 30 is disposed in a sleeve 31 which comprises substantially below the outlet 13 of the vessel 11, a dump valve 32 which can be opened or closed, as will be seen later.
  • the complementary screw 30 makes it possible to transfer the pretreated material from the outlet orifice 13 of the tank 11 to a subsequent processing machine, not shown.
  • This complementary screw 30 is rotated in both directions by an electric motor 33 ( figure 2 ).
  • This further processing machine is formed by an extrusion machine with one or more screws or by a cooker or a reactor or by any other suitable machine.
  • the raw material is introduced through the inlet orifice 12 inside the tank 11 and this raw material is mixed with the various ingredients introduced into the mixing chamber 15, by the blades 17 driven in rotation by the shafts 16 The raw material during its mixing progresses progressively towards the outlet orifice 13.
  • the mixing screw 25 is rotated by the motor 26 to push the raw material upstream of the processing device 10, that is to say towards the inlet port 12 , in the opposite direction of the advance of this raw material from the inlet orifice 12 to the outlet orifice 13.
  • the driving of the mixing screw 25 in the opposite direction makes it possible to adjust the treatment of the raw material more efficiently and more flexibly according to the raw materials to be treated.
  • the action of this mixing screw 25 which, by its counter-current effect and as a function of its speed of rotation, slows the flow of the raw material and by turbulence effect makes it possible to increase the filling rate in the tank 11 and thus to have a regulating action on the residence time of the raw material in the mixing chamber 15 of the tank 11.
  • This action for regulating the residence time of the material in the mixing chamber 15 is particularly remarkable in the case where, in the presence of the two shafts 16 provided to achieve the dispersive axial mixing of the material, the mixing screw 25 is located substantially midway between these two shafts, as shown in FIG. figure 2 In this case, the mixing screw 25 makes it possible to combine the dispersive axial mixture, which homogenizes the material in time and in space, with a radial mixture which limits or even makes negligible the residence time differences of the material in the mixing chamber 15.
  • the mixing screw 25 constitutes an additional and accessible adjustment means without stopping the processing device which is obtained by varying the speed of this mixing screw 25, thereby making it possible to adjust the operating parameters without loss of time. nor of raw material. Consequently, adjusting the inclination of the blades 17 of each shaft 16 is no longer an indispensable adjustment element and does not need to be modified for each treated material.
  • the tank 11 of the treatment device 10 is optionally connected to a cleaning system, not shown, and the mixing screw 25 is driven in a reverse direction of rotation so that the mixing screw 25 pushes the material of the inlet port 12 towards the outlet 13 of the tank 11.
  • This arrangement makes it possible to easily evacuate the material contained in the treatment device 10, which saves time for cleaning. tank.
  • the complementary screw 30 is rotated by the motor 33 in the positive direction so as to transfer the pretreated material leaving the outlet orifice 13 of the tank 11 to the extrusion machine in the direction indicated by the arrow F1 on the figure 2 , the emptying valve 32 being in the closed position.
  • the complementary screw 30 is rotated in the negative direction so as to discharge in the direction of the arrow F2 the solid or liquid residues contained in the tank 11, the drain valve 32 being in the open position .
  • the device can be coupled with an automated cleaning system to improve the conditions of production and hygiene, especially during the material change phases and / or stopping phases.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Description

La présente invention concerne un dispositif de traitement en continu d'au moins une matière première alimentaire ou non-alimentaire, et plus particulièrement le traitement de mélanges solides-liquides, comme par exemple des milieux particulaires et/ou pulvérulents avec des milieux aqueux ou organiques, ou des mélanges solides-gazeux, ainsi que des mélanges solides-liquides-gazeux.The present invention relates to a device for the continuous treatment of at least one food or non-food raw material, and more particularly the treatment of solid-liquid mixtures, such as, for example, particulate and / or pulverulent media with aqueous or organic media. , or solid-gas mixtures, as well as solid-liquid-gas mixtures.

Les solides sont par exemple des particules, des grains, des flocons, des farines ou autres, mais aussi des produits lignocellulosiques fragmentés pour mélange et imprégnation sous contrôle de température.The solids are for example particles, grains, flakes, flours or other, but also fragmented lignocellulosic products for mixing and impregnation under temperature control.

Le traitement de ce type de matière première consiste par exemple en un mélange et/ou un préchauffage, et/ou une hydratation, et/ou précuisson et/ou une cuisson de la matière première.The treatment of this type of raw material consists for example of mixing and / or preheating, and / or hydration, and / or precooking and / or cooking of the raw material.

Ce genre de traitement est effectué par exemple dans un dispositif comportant une cuve de forme allongée, à simple ou double paroi et pouvant être mise sous pression ou non. Cette cuve détermine une chambre de mélange comprenant, respectivement aux extrémités opposées de la cuve, au moins un orifice d'entrée de la matière première et au moins un orifice de sortie de la matière traitée.This kind of treatment is carried out for example in a device comprising an elongated tank, single or double wall and can be pressurized or not. This tank determines a mixing chamber comprising, respectively at opposite ends of the tank, at least one inlet of the raw material and at least one outlet of the treated material.

Dans la chambre de mélange, la cuve contient, entre l'orifice d'entrée et l'orifice de sortie, un ou deux arbres parallèles munis de pales généralement séparées et inclinables. Ces pales sont destinées à l'agitation de la matière première et par leur inclinaison à réaliser le mélange et faire progresser cette matière de l'orifice d'entrée vers l'orifice de sortie. La cuve peut comporter des orifices ou des injecteurs de liquide, comme par exemple de l'eau ou de l'huile ou tout autre liquide, ou de vapeur destinée à réchauffer et à humidifier la matière première. EP-A-0 264 069 , qui peut être considéré comme l'état de la technique le plus proche de l'objet de la revendication 1 annexée et sur lequel est basé le préambule de cette revendication 1, fournit un exemple d'une telle cuve de traitement en continu, voir aussi le document US 3403824 A1 .In the mixing chamber, the tank contains, between the inlet port and the outlet port, one or two parallel shafts provided with blades that are generally separate and tilting. These blades are intended for agitating the raw material and by their inclination to carry out mixing and to advance this material from the inlet orifice to the outlet orifice. The tank may include orifices or injectors of liquid, such as water or oil or any other liquid, or steam for heating and moistening the raw material. EP-A-0 264 069 , which can be regarded as the state of the art closest to the object of appended claim 1 and on which the preamble of claim 1 is based, provides an example of such a continuous treatment tank, see also the document US 3403824 A1 .

Généralement, l'intensité du mélange et le taux de remplissage dans la cuve sont ajustés par l'inclinaison des pales en mouvement dans la chambre de mélange et par la vitesse de rotation des arbres. L'orientation des pales peut être positive si en tournant celles-ci, ont tendance à faire avancer la matière de l'orifice d'entrée vers l'orifice de sortie et l'orientation de ces pales peut être négative si, au contraire, les pales ont tendance à retarder la matière dans sa progression à l'intérieur de la chambre de mélange. Plus le nombre de pales orientées en négatif est important, c'est-à-dire en opposition à l'avancée de la matière vers l'orifice de sortie, plus grands sont l'intensité de mélange et le taux de remplissage dans la chambre de mélange qui, le plus souvent, n'excèdent pas 40 % à 60 % du volume de la cuve.Generally, the intensity of the mixing and the rate of filling in the tank are adjusted by the inclination of the blades moving in the mixing chamber and the speed of rotation of the shafts. The orientation of the blades can be positive if turning them, tend to advance the material of the inlet port to the outlet and the orientation of these blades can be negative if, on the contrary, the blades tend to retard the material in its progression inside the mixing chamber. The more the number of negative-oriented blades is large, that is to say in opposition to the advance of the material towards the outlet, the greater the mixing intensity and the rate of filling in the mixing chamber which, in most cases, does not exceed 40% to 60% of the volume of the tank.

Ce mauvais taux de remplissage entraîne un mauvais échange entre la vapeur, les liquides et la matière première si bien que le rendement du dispositif n'est pas excellent.This poor filling rate causes a bad exchange between the steam, the liquids and the raw material so that the efficiency of the device is not excellent.

L'efficacité du dispositif de traitement est ajustée par la modification mécanique de l'orientation des pales des arbres. Cet ajustement pale par pale est une opération longue et fastidieuse reposant sur le savoir-faire de l'intervenant et elle impose un arrêt du dispositif et un nettoyage complet conduisant ainsi à chaque réglage à une perte de production importante. Le compromis de l'orientation des pales dans le sens négatif et dans le sens positif pour assurer un traitement suffisant de la matière première ne permet pas une auto-vidange rapide et efficace du dispositif et nécessite une intervention humaine de nettoyage lourde à chaque changement de formulation ou de production.The efficiency of the treatment device is adjusted by the mechanical modification of the orientation of the blades of the trees. This adjustment blade by blade is a long and tedious operation based on the expertise of the speaker and it imposes a stop of the device and a complete cleaning thus leading to each setting a significant loss of production. The compromise of the orientation of the blades in the negative sense and in the positive direction to ensure a sufficient treatment of the raw material does not allow a fast and effective self-emptying of the device and requires a human intervention of heavy cleaning at each change of formulation or production.

L'invention a pour but de proposer un dispositif de prétraitement en continu d'une matière première qui évite ces inconvénients et qui permet d'améliorer le rendement.The object of the invention is to propose a continuous pretreatment device for a raw material which avoids these drawbacks and which makes it possible to improve the yield.

L'invention a donc pour objet un dispositif de traitement en continu d'une matière première formée de mélanges solides-liquides ou solides-gazeux ou solides-liquides-gazeux, tel que défini à la revendication 1.The subject of the invention is therefore a device for the continuous treatment of a raw material formed of solid-liquid or solid-gas or solid-liquid-gas mixtures, as defined in claim 1.

D'autres caractéristiques du dispositif selon l'invention sont spécifiées aux revendications dépendantes 2 à 11.Other features of the device according to the invention are specified in the dependent claims 2 to 11.

L'invention a également pour objet une installation de traitement, telle que définie à la revendication 12.The invention also relates to a treatment installation, as defined in claim 12.

L'invention a en outre pour objet des utilisations du dispositif de traitement précédemment mentionné, telles que définies aux revendications 13 à 16.The invention further relates to uses of the aforementioned treatment device as defined in claims 13 to 16.

D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée qui est donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées, parmi lesquelles :

  • la figure 1 est une vue schématique en coupe longitudinale d'un dispositif de traitement, conforme à l'invention,
  • la figure 2 est une vue schématique en coupe transversale selon la ligne II-II de la figure 1, et
  • la figure 3 est une vue schématique des pales d'un arbre du dispositif de traitement, conforme à l'invention.
Other characteristics and advantages of the invention will emerge from the detailed description which is given below, by way of indication and in no way limitative, with reference to the appended figures, among which:
  • the figure 1 is a schematic view in longitudinal section of a treatment device according to the invention,
  • the figure 2 is a schematic cross-sectional view along the line II-II of the figure 1 , and
  • the figure 3 is a schematic view of the blades of a shaft of the treatment device according to the invention.

Sur les figures 1 et 2, on a représenté un dispositif de traitement 10 en continu d'une matière première constituée par une matière première alimentaire ou non alimentaire, et par exemple des mélanges solides-liquides, des mélanges solides-gazeux ou des mélanges solides-liquides-gazeux. A titre avantageux, le dispositif 10 peut être utilisé plus généralement pour traiter et/ou conditionner en continu au moins un mélange de produits dans deux états différents parmi les états solide, liquide et gazeux.On the Figures 1 and 2 there is shown a continuous treatment device 10 of a raw material consisting of a raw material food or non-food, and for example solid-liquid mixtures, solid-gas mixtures or solid-liquid-gas mixtures. Advantageously, the device 10 can be more generally used for continuously treating and / or conditioning at least one product mixture in two different states among solid, liquid and gaseous states.

Le dispositif 10 comprend une cuve 11 de forme allongée et déterminant une chambre de mélange 15 comportant, à une première extrémité, au moins un orifice d'entrée 12 de la matière première et, à une seconde extrémité, un orifice 13 de sortie de la matière traitée. Ainsi, en service, de la matière, introduite dans la chambre de mélange 15 par l'orifice d'entrée 12, parcourt cette chambre de mélange d'une de ses extrémités à son extrémité opposée le long de la cuve, d'où elle sort de la chambre de mélange par l'orifice de sortie 13.The device 10 comprises a tank 11 of elongate shape and determining a mixing chamber 15 having, at a first end, at least one inlet port 12 of the raw material and, at a second end, an outlet port 13 of the treated matter. Thus, in use, material, introduced into the mixing chamber 15 through the inlet port 12, runs through this mixing chamber from one of its ends to its opposite end along the tank, where it exits the mixing chamber through the outlet orifice 13.

Entre les orifices, respectivement d'entrée 12 et de sortie 13, la chambre de mélange 15 de la cuve 11 contient au moins un arbre agitateur 16 muni de pales 17. Comme expliqué plus en détail par la suite, les pales 17 du ou des arbres 16 permettent d'agiter la matière première de manière à, en continu, la mélanger tout en la faisant avancer de l'orifice d'entrée 12 vers l'orifice de sortie 13.Between the orifices 12 and 13, respectively, the mixing chamber 15 of the tank 11 contains at least one agitator shaft 16 provided with blades 17. As explained in more detail below, the blades 17 of the shafts 16 allow to stir the raw material so as to continuously mix it while advancing from the inlet port 12 to the outlet port 13.

Dans l'exemple de réalisation représenté sur les figures 1 et 2, la chambre de mélange 15 contient deux arbres agitateurs 16 parallèles et munis chacun de pales 17. Chaque arbre 16 est entraîné par un moteur électrique 18 placé à l'extérieur de la cuve 11. Dans ce cas, la cuve 11 est constituée par un tube en forme de huit, ainsi que montré à la figure 2. Avantageusement, les deux arbres 16 sont prévus pour réaliser un mélange axial dispersif de la matière entre l'orifice d'entrée 12 et l'orifice de sortie 13 : dans ce cas, comme indiqué à la figure 2, les arbres 16 sont, en service, entraînés selon des sens de rotation respectifs qui sont opposés et au moins certaines de leurs pales respectives 17 présentent une dimension radiale strictement supérieure à la moitié de la distance séparant les arbres 16, autrement dit la moitié de leur entraxe. De la sorte, la matière située à peu près à mi-distance des arbres 16 est agitée à la fois par des pales 17 de l'un des arbres dans une direction périphérique à cet arbre et par des pales 17 de l'autre arbre dans une direction périphérique à ce dernier, de sens opposé.In the exemplary embodiment shown on the Figures 1 and 2 , the mixing chamber 15 contains two parallel agitating shafts 16 each provided with blades 17. Each shaft 16 is driven by an electric motor 18 placed outside the tank 11. In this case, the tank 11 is constituted by a tube-shaped eight, as shown in the figure 2 . Advantageously, the two shafts 16 are provided to achieve a dispersive axial mixing of the material between the inlet orifice 12 and the outlet orifice 13: in this case, as indicated in FIG. figure 2 , the shafts 16 are, in use, driven in respective opposite directions of rotation and at least some of their respective blades 17 have a radial dimension strictly greater than half the distance between the shafts 16, ie half of their center distance. In this way, the material situated approximately halfway between the shafts 16 is agitated both by blades 17 of one of the shafts in a direction peripheral to this shaft and by blades 17 of the other shaft in a direction peripheral to the latter, of opposite direction.

Dans le cas où la cuve 11 contient un seul arbre 16, cette cuve a la forme d'un simple tube.In the case where the tank 11 contains a single shaft 16, this tank has the shape of a single tube.

La cuve 11 comporte une simple ou une double paroi et cette cuve 11 peut être mise sous pression ou non.The tank 11 comprises a single or double wall and this tank 11 may be pressurized or not.

Comme montré à la figure 3, les pales 17 comportent une extrémité 17a en forme de triangle et le positionnement de ces pales 17 est réalisé de manière à avoir un recouvrement de surface permettant un bon mélange dispersif et un autoraclage de la paroi de la cuve 11.As shown in figure 3 , the blades 17 comprise a triangle-shaped end 17a and the positioning of these blades 17 is made so as to have a surface covering allowing a good dispersive mixing and autoraclage of the wall of the tank 11.

Comme cela apparaît à la figure 1, la cuve 11 comporte un évent 19 et au moins un orifice 20 d'injection de liquide, comme par exemple de l'eau, de l'huile ou tout autre liquide et/ou de gaz, comme par exemple de la vapeur, destiné à réchauffer et à humidifier la matière première.As it appears in figure 1 the vessel 11 comprises a vent 19 and at least one liquid injection orifice 20, such as, for example, water, oil or any other liquid and / or gas, such as steam for example, to heat and moisten the raw material.

Le dispositif de traitement 10 comporte également une vis de mélange 25 de fond de cuve, autrement dit agencé dans la chambre de mélange 15, au niveau du fond de celle-ci, comme bien visible sur les figures 1 et 2. Cette vis de mélange 25 est entraînée en rotation par un moteur électrique 26 disposé à l'extérieur de la cuve 11. La vis de mélange 25 est prévue pour être entrainée en rotation au moins à l'opposé de l'avancement de la matière de l'orifice d'entrée 12 vers l'orifice de sortie 13 et, de préférence, dans les deux sens de rotation. Cette vis de mélange 25 est disposée au-dessous et parallèlement aux arbres 16 et s'étend sensiblement entre les orifices, respectivement d'entrée 12 et de sortie 13.The treatment device 10 also comprises a bottom mixing screw 25, in other words arranged in the mixing chamber 15, at the bottom thereof, as clearly visible on the Figures 1 and 2 . This mixing screw 25 is rotated by an electric motor 26 disposed outside the tank 11. The mixing screw 25 is designed to be rotated at least in opposition to the advancement of the feed material. the inlet port 12 to the outlet port 13 and, preferably, in both directions of rotation. This mixing screw 25 is disposed below and parallel to the shafts 16 and extends substantially between the orifices 12 and 12 respectively.

Dans l'exemple de réalisation représenté sur les figures, le dispositif de traitement 10 comporte aussi une vis complémentaire 30 à double sens de rotation disposée au-dessous de l'orifice de sortie 13 de la cuve 11 et s'étendant perpendiculairement à la vis de mélange 25. La vis complémentaire 30 est disposée dans un fourreau 31 qui comporte sensiblement au-dessous de l'orifice de sortie 13 de la cuve 11, un clapet de vidage 32 qui peut être ouvert ou fermé, ainsi qu'on le verra ultérieurement.In the embodiment shown in the figures, the processing device 10 also comprises a complementary screw 30 with a double direction of rotation disposed below the outlet orifice 13 of the tank 11 and extending perpendicularly to the screw The complementary screw 30 is disposed in a sleeve 31 which comprises substantially below the outlet 13 of the vessel 11, a dump valve 32 which can be opened or closed, as will be seen later.

Dans le cas d'une utilisation du dispositif 10 comme dispositif de prétraitement, la vis complémentaire 30 permet de transférer la matière prétraitée de l'orifice de sortie 13 de la cuve 11 vers une machine de traitement ultérieur, non représentée. Cette vis complémentaire 30 est entraînée en rotation dans les deux sens par un moteur électrique 33 (figure 2).In the case of use of the device 10 as a pretreatment device, the complementary screw 30 makes it possible to transfer the pretreated material from the outlet orifice 13 of the tank 11 to a subsequent processing machine, not shown. This complementary screw 30 is rotated in both directions by an electric motor 33 ( figure 2 ).

Cette machine de traitement ultérieur est formée par une machine d'extrusion à une ou plusieurs vis ou par un cuiseur ou un réacteur ou par toute autre machine adaptée.This further processing machine is formed by an extrusion machine with one or more screws or by a cooker or a reactor or by any other suitable machine.

La matière première est introduite par l'orifice d'entrée 12 à l'intérieur de la cuve 11 et cette matière première est mélangée avec les différents ingrédients introduits dans la chambre de mélange 15, par les pales 17 entraînées en rotation par les arbres 16. La matière première au cours de son mélange avance progressivement vers l'orifice de sortie 13.The raw material is introduced through the inlet orifice 12 inside the tank 11 and this raw material is mixed with the various ingredients introduced into the mixing chamber 15, by the blades 17 driven in rotation by the shafts 16 The raw material during its mixing progresses progressively towards the outlet orifice 13.

Dans la configuration dite marche normale, la vis de mélange 25 est entraînée en rotation par le moteur 26 pour repousser la matière première vers l'amont du dispositif de traitement 10, c'est-à-dire vers l'orifice d'entrée 12, en sens contraire de l'avancée de cette matière première de l'orifice d'entrée 12 vers l'orifice de sortie 13.In the so-called normal operation configuration, the mixing screw 25 is rotated by the motor 26 to push the raw material upstream of the processing device 10, that is to say towards the inlet port 12 , in the opposite direction of the advance of this raw material from the inlet orifice 12 to the outlet orifice 13.

L'entraînement de la vis de mélange 25 en sens contraire permet d'ajuster le traitement de la matière première de façon plus efficace et plus flexible en fonction des matières premières à traiter. L'action de cette vis de mélange 25 qui, par son effet contre-courant et en fonction de sa vitesse de rotation, freine l'écoulement de la matière première et par effet de turbulence permet d'augmenter le taux de remplissage dans la cuve 11 et ainsi d'avoir une action de régulation sur le temps de séjour de la matière première dans la chambre de mélange 15 de la cuve 11. Cette action de régulation du temps de séjour de la matière dans la chambre de mélange 15 est particulièrement remarquable dans le cas où, en présence des deux arbres 16 prévus pour réaliser le mélange axial dispersif de la matière, la vis de mélange 25 est située sensiblement à mi-distance de ces deux arbres, comme montré à la figure 2 : dans ce cas, la vis de mélange 25 permet de combiner au mélange axial dispersif, qui homogénéise la matière dans le temps et dans l'espace, un mélange radial qui limite, voire rend négligeables les écarts de temps de séjour de la matière dans la chambre de mélange 15.The driving of the mixing screw 25 in the opposite direction makes it possible to adjust the treatment of the raw material more efficiently and more flexibly according to the raw materials to be treated. The action of this mixing screw 25 which, by its counter-current effect and as a function of its speed of rotation, slows the flow of the raw material and by turbulence effect makes it possible to increase the filling rate in the tank 11 and thus to have a regulating action on the residence time of the raw material in the mixing chamber 15 of the tank 11. This action for regulating the residence time of the material in the mixing chamber 15 is particularly remarkable in the case where, in the presence of the two shafts 16 provided to achieve the dispersive axial mixing of the material, the mixing screw 25 is located substantially midway between these two shafts, as shown in FIG. figure 2 In this case, the mixing screw 25 makes it possible to combine the dispersive axial mixture, which homogenizes the material in time and in space, with a radial mixture which limits or even makes negligible the residence time differences of the material in the mixing chamber 15.

Cette plus grande flexibilité et efficacité de mélange du dispositif de traitement associée à un taux de remplissage amélioré de la chambre de mélange 15, supérieur à 50 %, voire strictement supérieur à 60%, contribue à obtenir une réduction des pertes et une hydratation plus ou moins homogène des particules de la matière première à traiter, donc un meilleur rendement énergétique du dispositif de prétraitement.This greater flexibility and mixing efficiency of the treatment device associated with an improved filling rate of the mixing chamber 15, greater than 50%, or even more strictly greater than 60%, contributes to a reduction in losses and more or more hydration. less homogeneous particles of the raw material to be treated, so a better energy efficiency of the pretreatment device.

La vis de mélange 25 constitue un moyen de réglage supplémentaire et accessible sans arrêter le dispositif de traitement qui est obtenu en jouant sur la vitesse de cette vis de mélange 25 permettant, de ce fait, d'ajuster les paramètres de fonctionnement sans perte de temps ni de matière première. Par conséquent, le réglage de l'inclinaison des pales 17 de chaque arbre 16 ne constitue plus un élément de réglage indispensable et n'a pas besoin d'être modifié pour chaque matière traitée.The mixing screw 25 constitutes an additional and accessible adjustment means without stopping the processing device which is obtained by varying the speed of this mixing screw 25, thereby making it possible to adjust the operating parameters without loss of time. nor of raw material. Consequently, adjusting the inclination of the blades 17 of each shaft 16 is no longer an indispensable adjustment element and does not need to be modified for each treated material.

Dans la configuration dite vidange, la cuve 11 du dispositif de traitement 10 est connectée éventuellement à un système de nettoyage, non représenté, et la vis de mélange 25 est entraînée dans un sens de rotation inverse de façon à ce que cette vis de mélange 25 pousse la matière de l'orifice d'entrée 12 vers l'orifice de sortie 13 de la cuve 11. Cette disposition permet d'évacuer facilement la matière contenue dans le dispositif de traitement 10 ce qui procure un gain de temps pour le nettoyage de la cuve.In the so-called emptying configuration, the tank 11 of the treatment device 10 is optionally connected to a cleaning system, not shown, and the mixing screw 25 is driven in a reverse direction of rotation so that the mixing screw 25 pushes the material of the inlet port 12 towards the outlet 13 of the tank 11. This arrangement makes it possible to easily evacuate the material contained in the treatment device 10, which saves time for cleaning. tank.

Dans la configuration dite marche normale, la vis complémentaire 30 est entraînée en rotation par le moteur 33 dans le sens positif de façon à transférer la matière prétraitée sortant de l'orifice de sortie 13 de la cuve 11 vers la machine d'extrusion dans le sens indiqué par la flèche F1 sur la figure 2, le clapet de vidage 32 étant en position fermée.In the so-called normal operation configuration, the complementary screw 30 is rotated by the motor 33 in the positive direction so as to transfer the pretreated material leaving the outlet orifice 13 of the tank 11 to the extrusion machine in the direction indicated by the arrow F1 on the figure 2 , the emptying valve 32 being in the closed position.

Dans la configuration dite de vidange, la vis complémentaire 30 est entraînée en rotation dans le sens négatif de façon à évacuer dans le sens de la flèche F2 les résidus solides ou liquides contenus dans la cuve 11, le clapet de vidange 32 étant en position ouverte.In the so-called emptying configuration, the complementary screw 30 is rotated in the negative direction so as to discharge in the direction of the arrow F2 the solid or liquid residues contained in the tank 11, the drain valve 32 being in the open position .

En situation de changement de matière à prétraiter sans effectuer un nettoyage intermédiaire de la cuve, le parfait vidage de cette cuve à l'aide de la vis 25 réduit le risque de contamination croisée.In a material change situation to pretreat without performing an intermediate cleaning of the tank, the perfect emptying of this tank with the screw 25 reduces the risk of cross-contamination.

Enfin, le dispositif peut être couplé avec un système de nettoyage automatisé pour améliorer les conditions de production et d'hygiène, notamment durant les phases de changement de matière et/ou les phases d'arrêt.Finally, the device can be coupled with an automated cleaning system to improve the conditions of production and hygiene, especially during the material change phases and / or stopping phases.

Claims (16)

  1. A device (10) for continuously treating at least one raw material made up of solid-liquid or solid-gas or solid-liquid-gas mixtures, comprising an elongated vat (11) defining a mixing chamber (15) that includes at least one inlet orifice (12) for the raw material at a first end, and at least one outlet orifice (13) for the treated material at a second end that is opposed to the first end in the longitudinal direction of the vat, as well as, between said orifices (12, 13), at least one agitating shaft (16) provided with blades (17) suitable for mixing and progressing the material continuously in the mixing chamber (15) from the inlet orifice toward the outlet orifice, characterized in that the device (10) comprises a mixing screw (25) for mixing the bottom of the vat, which is positioned in the mixing chamber (15) below and parallel to said at least one shaft (16), and which is suitable for being rotated, in at least one direction of rotation, opposite the continuously progression of the material from the inlet orifice (12) toward the outlet orifice (13).
  2. The device according to claim 1, characterized in that the mixing screw (25) has two directions of rotation.
  3. The device according to claim 1 or 2, characterized in that the mixing screw (25) extends substantially between the inlet orifice (12) and the outlet orifice (13).
  4. The device according to any one of claims 1 to 3, characterized in that in a normal operating configuration, the mixing screw (25) drives the material countercurrent with respect to said at least one shaft (16).
  5. The device according to any one of claims 1 to 3, characterized in that in an emptying configuration, the mixing screw (25) drives the material in the same direction as said at least one shaft (16).
  6. The device according to any one of the preceding claims, characterized in that the device includes, below the outlet orifice (13) of the vat (11), a complementary screw (30) with two directions of rotation extending perpendicular to the mixing screw (25).
  7. The device according to any one of the preceding claims, characterized by two parallel shafts (16).
  8. The device according to claim 7, characterized in that the two shafts (16) are driven in respective directions of rotation that are opposite one another and at least some of their respective blades (17) have a radial dimension strictly larger than half of their center-to-center spread.
  9. The device according to one of claims 7 or 8, characterized in that the mixing screw (25) is substantially equidistant from the two shafts (16).
  10. The device according to any one of the preceding claims, characterized in that the device comprises both a motor (18) driving the or each shaft (16), positioned outside the vat (11), and a motor (26) driving the mixing screw (25), also positioned outside the vat.
  11. The device according to any one of the preceding claims, characterized in that the device (10) further comprises a cleaning system connected to the vat (11).
  12. An installation for treating at least one raw material made up of solid-liquid or solid-gas or solid-liquid-gas mixtures, characterized in that the installation includes a device (10) for continuously treating the raw material, according to any one of the preceding claims, and in that the installation further includes an extrusion machine with one or more screws, which is supplied with material leaving the outlet orifice (13) of the treatment device (10).
  13. A use of the treatment device (10) according to any one of claims 1 to 11 as a device for pretreating at least one raw material for an extrusion machine with one or more screws.
  14. The use according to claim 13, characterized in that the filing rate of the mixing chamber (15) is greater than 50%.
  15. The use according to one of claims 13 or 14, characterized in that the filling rate of the mixing chamber (15) is strictly greater than 60%.
  16. A use of the treatment device (10) according to any one of claims 1 to 11 to continuously treat and/or condition at least one mixture of products in two different states from among the solid, liquid and gas states.
EP12703785.1A 2011-02-09 2012-02-08 Device for the continuous treatment of at least one raw material, treatment installation and use of such a device Active EP2673075B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1151017A FR2971170B1 (en) 2011-02-09 2011-02-09 DEVICE FOR THE CONTINUOUS TREATMENT OF AT LEAST ONE RAW MATERIAL
PCT/EP2012/052133 WO2012107491A1 (en) 2011-02-09 2012-02-08 Device for the continuous treatment of at least one raw material, treatment installation and use of such a device

Publications (2)

Publication Number Publication Date
EP2673075A1 EP2673075A1 (en) 2013-12-18
EP2673075B1 true EP2673075B1 (en) 2015-06-10

Family

ID=44475021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12703785.1A Active EP2673075B1 (en) 2011-02-09 2012-02-08 Device for the continuous treatment of at least one raw material, treatment installation and use of such a device

Country Status (6)

Country Link
US (1) US9675945B2 (en)
EP (1) EP2673075B1 (en)
CL (1) CL2013002306A1 (en)
DK (1) DK2673075T3 (en)
FR (1) FR2971170B1 (en)
WO (1) WO2012107491A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536593A (en) * 2015-12-24 2016-05-04 苏州北开生化设备有限公司 Small-sized forced mixing agitator applied to laboratory and working method of small-sized forced mixer

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106732145A (en) * 2017-01-12 2017-05-31 朴春秀 A kind of fish bait mixing stirring device
CN110354711A (en) * 2019-07-12 2019-10-22 安徽诚宇新材料科技有限公司 A kind of environment protection type disposable plastic cup raw material blending device
CN110773024A (en) * 2019-11-07 2020-02-11 安徽持家汉家居工艺品有限公司 A raw material mixing device for producing baling rope
CN114073902B (en) * 2020-08-06 2023-07-21 常州美择新材料科技有限公司 Accurate automatic feeding device of superfine powder
CN112138594A (en) * 2020-09-09 2020-12-29 南宁学院 Ceramic raw material stirring device
CN113262690B (en) * 2021-05-18 2022-07-12 南通江海电容器股份有限公司 Slurry mixing method and device capable of shortening mixing time
CN114225739B (en) * 2021-12-19 2022-08-30 湖南安固仕新材料有限公司 Production process of putty paste with environment-friendly and crack resistance

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1603546A (en) * 1924-04-09 1926-10-19 Kirschbraun Lester Apparatus for making emulsions
US2177910A (en) * 1937-07-12 1939-10-31 Octrooien Mij Activit Nv Apparatus for the continuous mixing and homogenizing of substances
FR1271333A (en) 1960-09-21 1961-09-08 Buss Ag Kneading, kneading and mixing device
US3215408A (en) * 1963-04-22 1965-11-02 Elmer K Hansen Bulk material blending and unloading vehicle
DE1192443B (en) * 1963-09-06 1965-05-06 Heinrich Biehl Device for homogenizing and discharging feed mixtures to be fermented or ready for feeding
US3468519A (en) * 1967-10-12 1969-09-23 Glenn R Lorenzen Silage and feed grain mixing and conveying system
CH506322A (en) 1969-03-17 1971-04-30 List Heinz Multi-spindle mixing and kneading machine
DE2123956C3 (en) 1970-05-20 1979-09-20 Heinz Dipl.-Ing. Pratteln List (Schweiz) Mixing and kneading machine
US3672640A (en) * 1970-09-02 1972-06-27 Harvey L Crose Mixer
DE2243083A1 (en) * 1972-09-01 1974-03-07 Hans Hoffmann Mixed silo fodder prepn - by mixing constituents from storage hoppers into worm screw mixer
AU6175780A (en) * 1980-05-29 1981-12-03 Howard Machinery Ltd. Mixing and dispensing machine
US4483625A (en) * 1981-02-10 1984-11-20 Technovators, Inc. Continuous solid particulate mixer conveyor having variable capacity
US4493557A (en) * 1982-11-01 1985-01-15 Corning Glass Works Mixing apparatus
US4707140A (en) * 1986-09-29 1987-11-17 Mohrlang Manufacturing, Inc. Feed mixer
US4752139A (en) 1986-10-14 1988-06-21 Wenger Manufacturing, Inc. Preconditioning apparatus for extruder
US4896970A (en) * 1986-10-28 1990-01-30 Schuler Mfg. & Equip. Co., Inc. Feed mixer
DE3720325A1 (en) * 1987-06-19 1989-01-12 Werner & Pfleiderer DEVICE FOR MIXING AND CONTINUOUSLY EXTRUDING PLASTIC MEASURES
SE500879C2 (en) 1992-06-30 1994-09-26 Sunds Defibrator Ind Ab Apparatus for mixing treatment medium in a pulp suspension in a container
GB2304297B (en) 1995-08-17 1999-03-31 Svedala Ltd Flotation tank impeller
US6923393B1 (en) * 2002-06-21 2005-08-02 J-Star Industries, Inc. Horizontal feed mixer and method for using same
WO2011027556A1 (en) * 2009-09-04 2011-03-10 株式会社ツカサ Apparatus for powder particle agitation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105536593A (en) * 2015-12-24 2016-05-04 苏州北开生化设备有限公司 Small-sized forced mixing agitator applied to laboratory and working method of small-sized forced mixer

Also Published As

Publication number Publication date
DK2673075T3 (en) 2015-06-29
WO2012107491A1 (en) 2012-08-16
FR2971170A1 (en) 2012-08-10
US9675945B2 (en) 2017-06-13
US20130308412A1 (en) 2013-11-21
CL2013002306A1 (en) 2014-02-21
FR2971170B1 (en) 2014-07-04
EP2673075A1 (en) 2013-12-18

Similar Documents

Publication Publication Date Title
EP2673075B1 (en) Device for the continuous treatment of at least one raw material, treatment installation and use of such a device
FR2907029A1 (en) PROCESS AND INSTALLATION FOR CONTINUOUS PRODUCTION OF A POROUS PRODUCT IN POWDER.
EP2124580B1 (en) Method and equipment for the continuous production of an expanded food product
EP0247926A1 (en) Process and device for producing marzipan
CH677452A5 (en)
FR2519288A1 (en) MULTI-STAGE ROTATING APPARATUS FOR PROCESSING POLYMERIC OR PLASTIC MATERIAL
EP0436683B1 (en) Crusher for the manufacture of goods formed by the suspension of solid particles in a fatty carrier
EP1248529B1 (en) Method and installation for continuously preparing caseinate
FR2477429A1 (en) Mixing and stirring device - in vertical tank is annular spiral scoop on vertical shaft
FR2601380A1 (en) Process and device for the continuous manufacture of mixed fuels based on organic matter and on hydrocarbon matter
EP0914243B1 (en) Method and installation for continuous extraction of a liquid contained in a raw material
CA2314526C (en) Drum for garbage processing apparatus and associated apparatus
FR2551678A1 (en) ROTATING TREATMENT APPARATUS COMPRISING A SEALING DEVICE
EP3621444B1 (en) Method for the continuous coating of food products, in particular frozen food products, with controlled rotor heating
EP0145536B1 (en) Fermenter for solid media
FR2647461A1 (en) Process for the treatment of materials such as pigments of mineral origin with a view to dispersing them in water, and machine for carrying out the process
FR2940800A1 (en) Post-treatment of sludge, comprises liming the sludge by mixing with quicklime in a twin-screw co-rotating sleeve, where the sludge is deflocculated before introducing into the sleeve, which comprises input and output supply units
FR2764614A1 (en) PROCESS AND INSTALLATION FOR THE CONTINUOUS PREPARATION OF A PAPER PULP FROM LIGNOCELLULOSIC TEXTILE FIBERS
WO2014198946A1 (en) Extruder for treatment unit for plastics materials, and treatment unit comprising such an extruder
FR2760676A1 (en) INSTALLATION FOR THE MANUFACTURE OF CERAMICS
EP0030488A1 (en) Kneader for the mechanical working of liquid, pasty and solid granular materials
CN210121436U (en) Dyestuff jar is used in processing of bamboo handicraft
EP0079656A1 (en) Plastics extruder
EP0197805A1 (en) Process for the preservation treatment of perishable products having pores and voids such as mushrooms
FR3137398A1 (en) METHOD FOR PROCESSING CELLULOSIC FIBERS BY MECHANICAL COMPRESSION, PARTICULARLY FOR PAPER PULP

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130801

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B01F 15/02 20060101ALI20150114BHEP

Ipc: B01F 13/10 20060101ALI20150114BHEP

Ipc: B01F 7/00 20060101AFI20150114BHEP

Ipc: B01F 7/04 20060101ALI20150114BHEP

Ipc: B01F 3/06 20060101ALN20150114BHEP

Ipc: B01F 7/08 20060101ALI20150114BHEP

Ipc: B01F 3/12 20060101ALN20150114BHEP

Ipc: B01F 7/02 20060101ALI20150114BHEP

INTG Intention to grant announced

Effective date: 20150128

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20150622

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 730659

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150715

Ref country code: CH

Ref legal event code: NV

Representative=s name: ARNOLD AND SIEDSMA AG, CH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602012007883

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20150610

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 730659

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150610

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20150610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150911

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150910

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150610

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151012

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151010

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602012007883

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

26N No opposition filed

Effective date: 20160311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160208

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160208

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120208

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150610

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20200120

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210208

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602012007883

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0007000000

Ipc: B01F0027000000

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230516

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20240124

Year of fee payment: 13

Ref country code: DE

Payment date: 20240213

Year of fee payment: 13

Ref country code: CH

Payment date: 20240301

Year of fee payment: 13

Ref country code: GB

Payment date: 20240221

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20240123

Year of fee payment: 13

Ref country code: FR

Payment date: 20240112

Year of fee payment: 13

Ref country code: DK

Payment date: 20240129

Year of fee payment: 13