EP2673075A1 - 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

Info

Publication number
EP2673075A1
EP2673075A1 EP12703785.1A EP12703785A EP2673075A1 EP 2673075 A1 EP2673075 A1 EP 2673075A1 EP 12703785 A EP12703785 A EP 12703785A EP 2673075 A1 EP2673075 A1 EP 2673075A1
Authority
EP
European Patent Office
Prior art keywords
raw material
solid
mixing
outlet
mixing 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.)
Granted
Application number
EP12703785.1A
Other languages
German (de)
French (fr)
Other versions
EP2673075B1 (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

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
    • B01F27/23—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
    • B01F27/0721—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
    • B01F27/05—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 provides an example of such a treatment tank.
  • 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 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 invention therefore relates to a device for continuously treating 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.
  • FIG. 1 is a diagrammatic view in longitudinal section of a treatment device according to the invention.
  • FIG. 2 is a diagrammatic cross-sectional view along the line II-II of FIG. 1, and
  • FIG. 3 is a schematic view of the blades of a shaft of the processing device according to the invention.
  • FIGS. 1 and 2 show a continuous processing device 10 for a raw material constituted by a food or non-food raw material, and for example solid-liquid mixtures, solid-gas mixtures or solid mixtures. -liquides-gas.
  • 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 an elongate vessel 11 which determines a mixing chamber 15 comprising, at a first end, at least one inlet orifice 12 of the raw material and, at a second end, an outlet orifice 13 of the the treated material.
  • 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 vessel 1 1 contains at least one agitator shaft 16 provided with blades 17.
  • the blades 17 of the shafts 16 serve to stir the raw material so as to continuously mix it while advancing it 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. 1 1.
  • the vessel 1 1 is constituted by a tube-shaped eight, as shown in Figure 2.
  • the two shafts 16 are provided to achieve a dispersive axial mixture of the material between the inlet port 12 and the outlet orifice 13: in this case, as shown in Figure 2, the shafts 16 are, in use, driven in respective directions of rotation which are opposite and at least some of their respective blades 17 have a dimension radial strictly greater than half the distance between the shafts 16, ie half their spacing. 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 1 1 comprises a single or double wall and the tank 1 1 may be pressurized or not.
  • the blades 17 comprise a triangle-shaped end 17a and the positioning of these blades 17 is designed so as to have a surface covering allowing good dispersive mixing and self-tuning of the wall of the tank 1 1.
  • the vessel 1 1 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 heating and moistening the raw material.
  • the treatment device 10 also comprises a tank bottom mixing screw 25, in other words arranged in the mixing chamber 15, at the bottom thereof, as clearly visible in FIGS. 1 and 2.
  • This mixing screw 25 is rotated by an electric motor 26 disposed outside the vessel 1 1.
  • the mixing screw 25 is provided to be rotated at least opposite the advancement of the material from the inlet port 12 to the outlet port 13 and, preferably, in both directions of rotation. rotation.
  • 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 vessel 11 and extending perpendicular to the mixing screw 25.
  • the complementary screw 30 is disposed in a sleeve 31 which comprises substantially below the outlet orifice 13 of the vessel 1 1, a dump valve 32 which can be opened or closed, as well as will see it later.
  • the complementary screw 30 makes it possible to transfer the pretreated material from the outlet orifice 13 of the tank 1 1 to a subsequent processing machine, not shown.
  • This complementary screw 30 is rotated in both directions by an electric motor 33 (FIG. 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 1 1 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 progressively advances 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 1 1 and thus to have a regulating action on the residence time of the raw material in the mixing chamber 15 of the tank 1 1.
  • This action of 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 for achieving the dispersive axial mixing of the material, the mixing screw 25 is located substantially halfway between these two shafts, as shown in FIG. 2: in this case, the mixing screw 25 makes it possible to combine the dispersive axial mixture, which homogenizes the material in time and space, a radial mixture which limits or even neglects 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 1 1 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 this mixing screw 25 pushes the material of the inlet port 12 to the outlet 13 of the vessel 1 1.
  • This arrangement makes it possible to easily evacuate the material contained in the treatment device 10, which saves time for cleaning the 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 vessel 1 1 to the extrusion machine in the direction indicated by the arrow F1 in 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 1 1, the drain valve 32 being in position opened.
  • 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.

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

Abstract

The continuous treatment device (10) includes a tank (11) of elongated shape and that determines a mixing chamber (15) which includes, at a first end, at least one inlet orifice (12) for the raw material and, at a second end, at least one outlet orifice (13) for the treated material, and also, between these orifices, at least one agitator shaft (16) equipped with blades (17) suitable for continuously mixing and advancing the material in the mixing chamber (15) from the inlet orifice to the outlet orifice. The device also includes a mixing screw (25) in the bottom of the tank, which is positioned in the mixing chamber (15), below and parallel to the at least one shaft (16), and which is suitable for being rotated, about at least one direction of rotation, the opposite way from the advance of the material from the inlet orifice to the outlet orifice.

Description

DISPOSITIF DE TRAITEMENT EN CONTINU D'AU MOINS UNE MATIERE PREMIERE, INSTALLATION DE TRAITEMENT ET UTILISATION D'UN TEL DISPOSITIF  DEVICE FOR CONTINUOUSLY PROCESSING AT LEAST ONE RAW MATERIAL, TREATMENT PLANT AND USE OF SUCH A DEVICE
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 fournit un exemple d'une telle cuve de traitement.  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 provides an example of such a treatment tank.
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. 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. 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 greater the number of negative-oriented blades, that is to say in opposition to the advance of the material towards the outlet orifice, the greater the intensity of mixing and the rate of filling in the chamber. which, in most cases, do not exceed 40% to 60% of the volume of the tank. 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 invention therefore relates to a device for continuously treating 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 1 1 .  Other features of the device according to the invention are specified in the dependent claims 2 to 1 1.
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 :  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:
- la figure 1 est une vue schématique en coupe longitudinale d'un dispositif de traitement, conforme à l'invention,  FIG. 1 is a diagrammatic view in longitudinal section of a treatment device according to the invention;
- la figure 2 est une vue schématique en coupe transversale selon la ligne ll-ll de la figure 1 , et  FIG. 2 is a diagrammatic cross-sectional view along the line II-II of FIG. 1, and
- la figure 3 est une vue schématique des pales d'un arbre du dispositif de traitement, conforme à l'invention.  - Figure 3 is a schematic view of the blades of a shaft of the processing 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. FIGS. 1 and 2 show a continuous processing device 10 for a raw material constituted by a food or non-food raw material, and for example solid-liquid mixtures, solid-gas mixtures or solid mixtures. -liquides-gas. 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 1 1 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 an elongate vessel 11 which determines a mixing chamber 15 comprising, at a first end, at least one inlet orifice 12 of the raw material and, at a second end, an outlet orifice 13 of the the treated material. 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 1 1 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, inlet 12 and outlet 13 respectively, the mixing chamber 15 of the vessel 1 1 contains at least one agitator shaft 16 provided with blades 17. As explained in more detail later, the blades 17 of the shafts 16 serve to stir the raw material so as to continuously mix it while advancing it 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 1 1 . Dans ce cas, la cuve 1 1 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 in FIGS. 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. 1 1. In this case, the vessel 1 1 is constituted by a tube-shaped eight, as shown in Figure 2. Advantageously, the two shafts 16 are provided to achieve a dispersive axial mixture of the material between the inlet port 12 and the outlet orifice 13: in this case, as shown in Figure 2, the shafts 16 are, in use, driven in respective directions of rotation which are opposite and at least some of their respective blades 17 have a dimension radial strictly greater than half the distance between the shafts 16, ie half their spacing. 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 1 1 contient un seul arbre 16, cette cuve a la forme d'un simple tube.  In the case where the tank 1 1 contains a single shaft 16, this tank has the shape of a single tube.
La cuve 1 1 comporte une simple ou une double paroi et cette cuve 1 1 peut être mise sous pression ou non.  The tank 1 1 comprises a single or double wall and the tank 1 1 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 1 1 . Comme cela apparaît à la figure 1 , la cuve 1 1 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 shown in FIG. 3, the blades 17 comprise a triangle-shaped end 17a and the positioning of these blades 17 is designed so as to have a surface covering allowing good dispersive mixing and self-tuning of the wall of the tank 1 1. As can be seen in FIG. 1, the vessel 1 1 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 heating and moistening 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 1 1 . La vis de mélange 25 est prévue pour être entraînée 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 tank bottom mixing screw 25, in other words arranged in the mixing chamber 15, at the bottom thereof, as clearly visible in FIGS. 1 and 2. This mixing screw 25 is rotated by an electric motor 26 disposed outside the vessel 1 1. The mixing screw 25 is provided to be rotated at least opposite the advancement of the material from the inlet port 12 to the outlet port 13 and, preferably, in both directions of rotation. 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 1 1 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 1 1 , 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 vessel 11 and extending perpendicular to the mixing screw 25. The complementary screw 30 is disposed in a sleeve 31 which comprises substantially below the outlet orifice 13 of the vessel 1 1, a dump valve 32 which can be opened or closed, as well as will see it 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 1 1 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 pretreatment device, the complementary screw 30 makes it possible to transfer the pretreated material from the outlet orifice 13 of the tank 1 1 to a subsequent processing machine, not shown. This complementary screw 30 is rotated in both directions by an electric motor 33 (FIG. 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 1 1 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 1 1 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 progressively advances 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. 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 1 1 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 1 1 . 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. 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. 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 1 1 and thus to have a regulating action on the residence time of the raw material in the mixing chamber 15 of the tank 1 1. This action of 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 for achieving the dispersive axial mixing of the material, the mixing screw 25 is located substantially halfway between these two shafts, as shown in FIG. 2: in this case, the mixing screw 25 makes it possible to combine the dispersive axial mixture, which homogenizes the material in time and space, a radial mixture which limits or even neglects 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 1 1 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 1 1 . 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 1 1 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 this mixing screw 25 pushes the material of the inlet port 12 to the outlet 13 of the vessel 1 1. This arrangement makes it possible to easily evacuate the material contained in the treatment device 10, which saves time for cleaning the 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 1 1 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. 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 1 1 , le clapet de vidange 32 étant en position ouverte. 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 vessel 1 1 to the extrusion machine in the direction indicated by the arrow F1 in Figure 2, the emptying valve 32 being in the closed position. 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 1 1, the drain valve 32 being in position opened.
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

REVENDICATIONS
1 .- Dispositif (10) de traitement en continu d'au moins une matière première formée de mélanges solides-liquides ou solides-gazeux ou solides-liquides-gazeux, comprenant une cuve (1 1 ) de forme allongée et déterminant une chambre de mélange (15) qui comporte, à une première extrémité, au moins un orifice d'entrée (12) de la matière première et, à une seconde extrémité, au moins un orifice de sortie (13) de la matière traitée, ainsi que, entre ces orifices (12, 13), au moins un arbre agitateur (16) muni de pales (17) adaptées pour mélanger et faire avancer la matière en continu dans la chambre de mélange (15) depuis l'orifice d'entrée vers l'orifice de sortie, caractérisé en ce que le dispositif (10) comprend une vis de mélange (25) de fond de cuve, qui est disposée dans la chambre de mélange (15) en dessous et parallèlement audit au moins un arbre (16), et qui est adaptée pour être entraînée en rotation, selon au moins un sens de rotation, à l'opposé de l'avancement de la matière de l'orifice d'entrée (12) vers l'orifice de sortie (13).  1 .- Apparatus (10) for continuously treating at least one raw material formed of solid-liquid or solid-gas or solid-liquid-gas mixtures, comprising an elongate vessel (1 1) and determining a chamber of mixture (15) which has, at a first end, at least one inlet (12) of the raw material and, at a second end, at least one outlet (13) of the treated material, and between these orifices (12, 13), at least one agitator shaft (16) provided with blades (17) adapted to mix and advance the material continuously in the mixing chamber (15) from the inlet port to the outlet orifice, characterized in that the device (10) comprises a bottom mixing screw (25), which is arranged in the mixing chamber (15) below and parallel to said at least one shaft (16) , and which is adapted to be rotated, in at least one direction of rotation, to the opposite advancing the material from the inlet (12) to the outlet (13).
2- Dispositif selon la revendication 1 , caractérisé en ce que la vis de mélange (25) est à deux sens de rotation.  2- Device according to claim 1, characterized in that the mixing screw (25) is in two directions of rotation.
3.- Dispositif selon la revendication 1 ou 2, caractérisé en ce que la vis de mélange (25) s'étend sensiblement entre les orifices, respectivement d'entrée (12) et de sortie (13).  3.- Device according to claim 1 or 2, characterized in that the mixing screw (25) extends substantially between the orifices, respectively inlet (12) and outlet (13).
4.- Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'en configuration marche normale, la vis de mélange (25) entraîne la matière à contre- courant par rapport audit au moins un arbre (16).  4.- Device according to any one of claims 1 to 3, characterized in that in normal operation configuration, the mixing screw (25) drives the material against the current relative to said at least one shaft (16).
5. - Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'en configuration vidange, la vis de mélange (25) entraîne la matière dans le même sens que ledit au moins un arbre (16).  5. - Device according to any one of claims 1 to 3, characterized in that in emptying configuration, the mixing screw (25) drives the material in the same direction as said at least one shaft (16).
6. - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte, au-dessous de l'orifice de sortie (13) de la cuve (1 1 ), une vis complémentaire (30) à double sens de rotation s'étendant perpendiculairement à la vis de mélange (25).  6. - Device according to any one of the preceding claims, characterized in that it comprises, below the outlet (13) of the vessel (1 1), a complementary screw (30) two-way rotation extending perpendicularly to the mixing screw (25).
7.- Dispositif selon l'une quelconque des revendications précédentes, caractérisé par deux arbres (16) parallèles.  7.- Device according to any one of the preceding claims, characterized by two shafts (16) parallel.
8.- Dispositif selon la revendication 7, caractérisé en ce que les deux arbres (16) sont 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 leur entraxe. 8.- Device according to claim 7, characterized in that the two shafts (16) are driven in respective directions of rotation which are opposite and at least some of their respective blades (17) have a radial dimension strictly greater than half of their center distance.
9. - Dispositif selon l'une des revendications 7 ou 8, caractérisé en ce que la vis de mélange (25) est sensiblement à égale distance des deux arbres (16). 9. - 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. - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend, à la fois, un moteur (18) d'entraînement du ou de chaque arbre (16), disposé à l'extérieur à la cuve (1 1 ), et un moteur (26) d'entraînement de la vis de mélange (25), également disposé à l'extérieur de la cuve.  10. - Device according to any one of the preceding claims, characterized in that it comprises, at the same time, a motor (18) for driving the or each shaft (16), arranged outside the tank (1 1), and a motor (26) for driving the mixing screw (25), also disposed outside the tank.
1 1 . - Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif (10) comprend en outre un système de nettoyage connecté à la cuve (1 1 ).  1 1. - Device according to any one of the preceding claims, characterized in that the device (10) further comprises a cleaning system connected to the vessel (1 1).
12.- Installation de traitement d'au moins une matière première formée de mélanges solides-liquides ou solides-gazeux ou solides-liquides-gazeux, caractérisée en ce qu'elle comporte un dispositif (10) de traitement en continu de la matière première, conforme à l'une quelconque des revendications précédentes, et en ce qu'elle comporte en outre une machine de traitement ultérieur, alimentée en la matière sortant de l'orifice de sortie (13) du dispositif de traitement (10).  12.- Installation for treating at least one raw material formed of solid-liquid or solid-gas or solid-liquid-gas mixtures, characterized in that it comprises a device (10) for the continuous treatment of the raw material according to any one of the preceding claims and further comprising a further processing machine fed with the material exiting the outlet (13) of the treatment device (10).
13. - Utilisation du dispositif de traitement (10) selon l'une quelconque des revendications 1 à 1 1 comme dispositif de prétraitement d'au moins une matière première pour une machine de traitement ultérieur.  13. - Use of the treatment device (10) according to any one of claims 1 to 1 1 as pretreatment device of at least one raw material for a post-processing machine.
14. - Utilisation selon la revendication 13, caractérisée en ce que la machine de traitement ultérieur est formée par une machine d'extrusion à une ou plusieurs vis.  14. - Use according to claim 13, characterized in that the further processing machine is formed by an extrusion machine with one or more screws.
15. - Utilisation selon l'une des revendications 13 ou 14, caractérisée en ce que le taux de remplissage de la chambre de mélange (15) est strictement supérieur à 60%.  15. - 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. - Utilisation du dispositif de traitement (10) selon l'une quelconque des revendications 1 à 1 1 pour traiter et/ou conditionner en continu au moins un mélange de produits dans deux états différents parmi les états solide, liquide et gazeux.  16. - Use of the treatment device (10) according to any one of claims 1 to 1 1 for continuously treating and / or conditioning at least one product mixture in two different states among the solid, liquid and gaseous 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)

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Also Published As

Publication number Publication date
FR2971170B1 (en) 2014-07-04
CL2013002306A1 (en) 2014-02-21
EP2673075B1 (en) 2015-06-10
DK2673075T3 (en) 2015-06-29
WO2012107491A1 (en) 2012-08-16
US20130308412A1 (en) 2013-11-21
US9675945B2 (en) 2017-06-13
FR2971170A1 (en) 2012-08-10

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