EP0908297A1 - Process for managing the draining and the pressing, particularly for a rotative drum press - Google Patents

Process for managing the draining and the pressing, particularly for a rotative drum press Download PDF

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Publication number
EP0908297A1
EP0908297A1 EP98440222A EP98440222A EP0908297A1 EP 0908297 A1 EP0908297 A1 EP 0908297A1 EP 98440222 A EP98440222 A EP 98440222A EP 98440222 A EP98440222 A EP 98440222A EP 0908297 A1 EP0908297 A1 EP 0908297A1
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Prior art keywords
pressure
phase
during
measurement phase
applying
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EP98440222A
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German (de)
French (fr)
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EP0908297B1 (en
Inventor
Jean Bonnet
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Bucher Vaslin SA
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Bucher Vaslin SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/047—Control arrangements

Definitions

  • the present invention relates to the field of techniques for the extraction of juices from materials, such as grape harvests, more particularly processes for treating the materials to be pressed, and relates to a process for management of drainage and pressing, in particular for a tank press rotary.
  • Simple mixing of the materials to be pressed followed by draining static can be more productive in extracted liquid than a rise in pressure applied to these materials.
  • the present invention therefore proposes to automatically choose the the most productive operating mode, between static drainage and applying pressure to the material to be pressed.
  • the present invention relates to a draining and pressing management process, in particular for a wine press rotary tank, as described below.
  • the method of managing the draining and pressing consists, following a first phase of stirring of the materials to be pressed by means, for example, of one or more rotations of the press tank, to perform a first measurement phase without applying pressure or by applying pressure Po and by measuring the instantaneous flow of the juice D it and the quantity Q jt of juice recovered as a function of time t elapsed since the start of brewing, continuously or sequentially over time, then to carry out, following a second brewing phase, a second consecutive measurement phase by applying a pressure P o or without applying pressure, to be compared between them the respective values of D it , Q jt and t reached when the inequality: D it ⁇ Q jt / t (1) is verified for the first time in said first and second above-mentioned measurement phases ées, that is to say by applying a pressure P o and without applying pressure, and to continue depending on the result of this comparison the operation of the press either by continuing
  • no pressure is not applied during the first measurement phase and a pressure Po (for example 0.1 bar) is applied during the second measurement phase.
  • a pressure Po is applied during the first measurement phase and no pressure is not applied during the second measurement phase.
  • the drip and pressing tests can be done in any order, as long as they are always done consecutively one after the other, each time being preceded by a phase of identical brewing.
  • checking the inequality (1) can also indicate, during a draining phase, that the continuation of the draining phase currently in progress does not allow a maximum quantity of juice to be recovered, and that it is necessary to carry out a new mixing of the materials to be pressed to restart the flow of juices.
  • the verification of the inequality (1) during a phase of pressing may also indicate that the continuation of the pressing phase is not optimal and that the materials to be mixed must be mixed press and continue, if necessary, with a pressing phase at one higher pressure.
  • the various functions that are part of the management process are executed automatically by a processing and computer control unit, using software and corresponding programs loaded beforehand, as well as possibly the numerical results of tests and experiments drainage and pressing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Following a first mixing phase of the materials to be pressed by rotating the vat without applying pressure or applying a pressure (Po) the instantaneous flow rate of the juice (Dit) is measured. The quantity of recovered juice (Qjt) as a function of time (t) since the start of mixing is measured. Following a second mixing phase a second phase of consecutive measurement whilst applying a pressure (Po) or without applying the pressure is compared with the previous values and verified when the inequality Dit ≤ Qjt/t is attained.

Description

La présente invention concerne le domaine des techniques d'extraction des jus de matières, tels que des vendanges, plus particulièrement les procédés de traitement des matières à pressurer, et a pour objet un procédé de gestion de l'égouttage et du pressurage, notamment pour un pressoir à cuve rotative.The present invention relates to the field of techniques for the extraction of juices from materials, such as grape harvests, more particularly processes for treating the materials to be pressed, and relates to a process for management of drainage and pressing, in particular for a tank press rotary.

Actuellement, la commande du fonctionnement des pressoirs est encore laissée, dans une large mesure, à l'appréciation de l'utilisateur qui décide, suite à une appréciation visuelle ou, le cas échéant, sur la base de certaines données de mesure fournies ponctuellement par des capteurs, de la nature, de la durée et de l'enchaínement des phases de travail du pressoir.Currently, the control of the operation of the presses is still left, to a large extent, to the discretion of the user who decides, following a visual assessment or, where appropriate, on the basis of certain measurement data provided punctually by sensors, the nature, the duration and sequence of work phases of the press.

Toutefois, cette manière d'opérer ne permet que très rarement, et ce uniquement avec un contrôle quasi-constant de l'opérateur, d'aboutir à un fonctionnement optimal dudit pressoir en termes d'efficacité de travail, en fonction de l'état initial des matières à pressurer et de l'état final souhaité pour lesdites matières.However, this way of operating allows only very rarely, and this only with an almost constant operator control, to achieve a optimal functioning of said press in terms of working efficiency, depending the initial state of the materials to be pressed and the desired final state for said materials materials.

Des progrès ont été faits dans les domaines du contrôle et du pilotage des pressoirs, en particulier grâce aux procédés faisant l'objet des brevets français n° 2 669 266, 2 695 862 et 2 701 889 au nom de la demanderesse.Progress has been made in the areas of control and steering presses, in particular thanks to the processes covered by French patents No. 2,669,266, 2,695,862 and 2,701,889 in the name of the plaintiff.

Ces procédés utilisent tous la pression, appliquée aux matières à pressurer, comme principal moyen d'extraction des liquides.These processes all use pressure, applied to the materials to be press, as the main means of extracting liquids.

Or, les montées en pression consomment de l'énergie et du temps et elles ne sont pas toujours le moyen le plus efficace pour évacuer du pressoir les jus libres qu'il contient.However, the pressure increases consume energy and time and they are not always the most effective means of removing from the press free juices it contains.

Un simple brassage des matières à pressurer suivi d'un égouttage statique peut être plus productif en liquide extrait qu'une montée en pression appliquée à ces matières.Simple mixing of the materials to be pressed followed by draining static can be more productive in extracted liquid than a rise in pressure applied to these materials.

La présente invention se propose donc de choisir automatiquement le mode de fonctionnement le plus productif, entre l'égouttage statique et l'application d'une pression aux matières à pressurer.The present invention therefore proposes to automatically choose the the most productive operating mode, between static drainage and applying pressure to the material to be pressed.

En outre, elle se propose de déterminer la durée optimale de l'égouttage statique éventuel de façon à enchaíner automatiquement égouttage statique et pressurage. In addition, it intends to determine the optimal duration of any static drainage so as to automatically chain drainage static and pressing.

En vue d'atteindre le but précité, la présente invention a pour objet un procédé de gestion de l'égouttage et du pressurage, notamment pour un pressoir à cuve rotative, tel que décrit ci-après.In order to achieve the above object, the present invention relates to a draining and pressing management process, in particular for a wine press rotary tank, as described below.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence au dessin schématique annexé, dont la figure unique est un diagramme représentant l'évolution du débit des jus en fonction du temps au cours d'une phase d'égouttage et de pressurage.The invention will be better understood, thanks to the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the accompanying schematic drawing, the single figure of which is a diagram representing the evolution of the flow of juice as a function of time at during a draining and pressing phase.

Conformément à l'invention, et comme le montre la figure des dessins annexés, le procédé de gestion de l'égouttage et du pressurage consiste, suite à une première phase de brassage des matières à pressurer par l'intermédiaire, par exemple, d'une ou de plusieurs rotations de la cuve du pressoir, à effectuer une première phase de mesure sans appliquer de pression ou en appliquant une pression Po et en mesurant le débit instantané du jus Dit et la quantité Qjt de jus récupéré en fonction du temps t écoulé depuis le début du brassage, de manière continue ou séquentielle au cours du temps, puis à effectuer, suite à une seconde phase de brassage, une seconde phase de mesure consécutive en appliquant une pression Po ou sans appliquer de pression, à comparer entre elles les valeurs respectives de Dit, Qjt et t atteintes lorsque l'inéquation : Dit ≤ Qjt/t (1) est vérifiée pour la première fois dans lesdites première et seconde phases de mesure précitées, c'est-à-dire en appliquant une pression Po et sans appliquer de pression, et à poursuivre en fonction du résultat de cette comparaison le fonctionnement du pressoir soit en continuant le cycle d'égouttage et en répétant les phases précitées en mesurant, de manière continue ou séquentielle, les valeurs de Dit, Qjt et t, soit en débutant le cycle de pressurage lorsque les valeurs de Dit et/ou de Qjt/t atteintes, lorsque l'inéquation (1) est vérifiée, au cours de la phase de mesure sans application de pression sont inférieures à celles atteintes, lorsque l'inéquation (1) est vérifiée, au cours de la phase de mesure avec application d'une pression Po.In accordance with the invention, and as shown in the figure of the appended drawings, the method of managing the draining and pressing consists, following a first phase of stirring of the materials to be pressed by means, for example, of one or more rotations of the press tank, to perform a first measurement phase without applying pressure or by applying pressure Po and by measuring the instantaneous flow of the juice D it and the quantity Q jt of juice recovered as a function of time t elapsed since the start of brewing, continuously or sequentially over time, then to carry out, following a second brewing phase, a second consecutive measurement phase by applying a pressure P o or without applying pressure, to be compared between them the respective values of D it , Q jt and t reached when the inequality: D it ≤ Q jt / t (1) is verified for the first time in said first and second above-mentioned measurement phases ées, that is to say by applying a pressure P o and without applying pressure, and to continue depending on the result of this comparison the operation of the press either by continuing the drip cycle and repeating the above phases in measuring, continuously or sequentially, the values of D it , Q jt and t, either by starting the pressing cycle when the values of D it and / or Q jt / t reached, when the inequality (1) is verified, during the measurement phase without application of pressure are less than those reached, when the inequality (1) is verified, during the measurement phase with application of a pressure P o .

Selon une première variante de réalisation de l'invention, aucune pression n'est appliquée durant la première phase de mesure et une pression Po (par exemple 0,1 bar) est appliquée durant la seconde phase de mesure.According to a first embodiment of the invention, no pressure is not applied during the first measurement phase and a pressure Po (for example 0.1 bar) is applied during the second measurement phase.

Selon une deuxième variante de réalisation de l'invention, une pression Po est appliquée durant la première phase de mesure et aucune pression n'est appliquée durant la seconde phase de mesure.According to a second alternative embodiment of the invention, a pressure Po is applied during the first measurement phase and no pressure is not applied during the second measurement phase.

Bien entendu, les tests d'égouttage et de pressurage peuvent être effectués dans un ordre quelconque, pour autant qu'ils soient toujours effectués consécutivement l'un après l'autre, en étant à chaque fois précédés d'une phase de brassage identique.Of course, the drip and pressing tests can be done in any order, as long as they are always done consecutively one after the other, each time being preceded by a phase of identical brewing.

En plus de la détermination de l'instant optimal du passage de l'égouttage au pressurage, la vérification de l'inéquation (1) peut également indiquer, durant une phase d'égouttage, que la poursuite de la phase d'égouttage actuellement en cours ne permet pas de récupérer une quantité de jus maximale, et qu'il est nécessaire de réaliser un nouveau brassage des matières à pressurer pour relancer l'écoulement des jus.In addition to determining the optimal time for the passage of draining during pressing, checking the inequality (1) can also indicate, during a draining phase, that the continuation of the draining phase currently in progress does not allow a maximum quantity of juice to be recovered, and that it is necessary to carry out a new mixing of the materials to be pressed to restart the flow of juices.

En outre, la vérification de l'inéquation (1) durant une phase de pressurage pourra également indiquer que la poursuite de la phase de pressurage actuelle n'est pas optimale et qu'il y a lieu de procéder à un brassage des matières à pressurer et à poursuivre, le cas échéant, avec une phase de pressurage à une pression plus élevée.In addition, the verification of the inequality (1) during a phase of pressing may also indicate that the continuation of the pressing phase is not optimal and that the materials to be mixed must be mixed press and continue, if necessary, with a pressing phase at one higher pressure.

Selon un mode préférentiel de mise en oeuvre pratique de l'invention, les différentes fonctions faisant partie du procédé de gestion sont exécutées automatiquement par une unité de traitement et de commande informatique, utilisant des logiciels et des programmes correspondants chargés préalablement, ainsi qu'éventuellement les résultats numériques de tests et d'expériences d'égouttage et de pressurage antérieurs.According to a preferred mode of practical implementation of the invention, the various functions that are part of the management process are executed automatically by a processing and computer control unit, using software and corresponding programs loaded beforehand, as well as possibly the numerical results of tests and experiments drainage and pressing.

Ainsi, et selon l'invention, la réalisation des tests brassage/égouttage et des tests brassage/pressurage permet de déterminer la durée optimale de l'égouttage avant d'enclencher le cycle de pressurage, de façon à obtenir la productivité la plus grande.Thus, and according to the invention, carrying out the brewing / draining tests and brewing / pressing tests to determine the optimal duration of the draining before starting the pressing cycle, so as to obtain the highest productivity.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications are still possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims (3)

Procédé de gestion de l'égouttage et du pressurage, notamment pour un pressoir à cuve rotative, caractérisé en ce qu'il consiste, suite à une première phase de brassage des matières à pressurer par l'intermédiaire, par exemple, d'une ou de plusieurs rotations de la cuve du pressoir, à effectuer une première phase de mesure sans appliquer de pression ou en appliquant une pression (Po) et en mesurant le débit instantané du jus (Dit) et la quantité (Qjt) de jus récupéré en fonction du temps (t) écoulé depuis le début du brassage, de manière continue ou séquentielle au cours du temps, puis à effectuer, suite à une seconde phase de brassage, une seconde phase de mesure consécutive en appliquant une pression (Po) ou sans appliquer de pression, à comparer entre elles les valeurs respectives de (Dit), (Qjt) et (t) atteintes lorsque l'inéquation : Dit ≤ Qjt/t (1) est vérifiée pour la première fois dans lesdites première et seconde phases de mesure précitées, c'est-à-dire en appliquant une pression (Po) et sans appliquer de pression, et à poursuivre en fonction du résultat de cette comparaison le fonctionnement du pressoir soit en continuant le cycle d'égouttage et en répétant les phases précitées en mesurant, de manière continue ou séquentielle, les valeurs de (Dit), (Qjt) et (t), soit en débutant le cycle de pressurage lorsque les valeurs de (Dit) et/ou de (Qjt/t) atteintes, lorsque l'inéquation (1) est vérifiée, au cours de la phase de mesure sans application de pression sont inférieures à celles atteintes, lorsque l'inéquation (1) est vérifiée, au cours de la phase de mesure avec application d'une pression (Po).Process for managing the drainage and pressing, in particular for a rotary tank press, characterized in that it consists, following a first phase of mixing the materials to be pressed by means, for example, of one or more of several rotations of the press tank, to carry out a first measurement phase without applying pressure or by applying pressure (Po) and by measuring the instantaneous flow of juice (D it ) and the quantity (Q jt ) of juice recovered as a function of the time (t) elapsed since the start of the brewing, continuously or sequentially over time, then to carry out, following a second brewing phase, a second consecutive measurement phase by applying a pressure (P o ) or without applying pressure, compare the respective values of (D it ), (Q jt ) and (t) with each other when the inequality: D it ≤ Q jt / t (1) is verified for the first time in said first and second measurement phases above, that is to say by applying pressure (P o ) and without applying pressure, and to continue depending on the result of this comparison the operation of the press either by continuing the drip cycle and repeating the phases mentioned above by measuring, continuously or sequentially, the values of (D it ), (Q jt ) and (t), either by starting the pressing cycle when the values of (D it ) and / or (Q jt / t ) reached, when the inequality (1) is verified, during the measurement phase without application of pressure are less than those reached, when the inequality (1) is verified, during the measurement phase with application of a pressure (P o ). Procédé selon la revendication 1, caractérisé en ce que durant la première phase de mesure aucune pression n'est appliquée et en ce que durant la seconde phase de mesure une pression (Po) est appliquée.Method according to claim 1, characterized in that during the first measurement phase no pressure is applied and only during the second measurement phase a pressure (Po) is applied. Procédé selon la revendication 1, caractérisé en ce que durant la première phase de mesure une pression (Po) est appliquée et en ce que durant la seconde phase de mesure aucune pression n'est appliquéeMethod according to claim 1, characterized in that during the first measurement phase a pressure (Po) is applied and in that during the second measurement phase no pressure is applied
EP98440222A 1997-10-10 1998-10-09 Process for managing the draining and the pressing, particularly for a rotative drum press Expired - Lifetime EP0908297B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9712856A FR2769473B1 (en) 1997-10-10 1997-10-10 METHOD OF MANAGING DRIPPING AND PRESSING, ESPECIALLY FOR A ROTARY TANK PRESS
FR9712856 1997-10-10

Publications (2)

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EP0908297A1 true EP0908297A1 (en) 1999-04-14
EP0908297B1 EP0908297B1 (en) 2000-04-19

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EP98440222A Expired - Lifetime EP0908297B1 (en) 1997-10-10 1998-10-09 Process for managing the draining and the pressing, particularly for a rotative drum press

Country Status (7)

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EP (1) EP0908297B1 (en)
AT (1) ATE191880T1 (en)
DE (1) DE69800117T2 (en)
ES (1) ES2147470T3 (en)
FR (1) FR2769473B1 (en)
GR (1) GR3033739T3 (en)
PT (1) PT908297E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800974A1 (en) * 1999-11-15 2001-05-18 Serge Martinez Operation of wine press having screw driving opposed plates together in cylindrical cage, steps up pressure successively avoiding return to zero

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590046A1 (en) * 1985-11-14 1987-05-15 Champagne Station Oenotechniqu Method and device for automating a press
FR2597629A2 (en) * 1985-11-14 1987-10-23 Champagne Station Oenotechniqu Method and device for automating at press
FR2669266A1 (en) 1990-11-16 1992-05-22 Chalonnaises Const Mec Met PRESSING METHOD AND DEVICE FOR ITS IMPLEMENTATION.
US5231922A (en) * 1987-03-05 1993-08-03 Bucher-Guyer Ag Maschinenfabrik Process for control of extraction of juice from organic products
FR2695862A1 (en) 1992-09-23 1994-03-25 Chalonnaises Const Mec Met Automatic control of lateral grape press - via pressure, vol. and flow reference cycle which takes account of quality and legislative criteria
FR2701889A1 (en) 1993-02-23 1994-09-02 Chalonnaises Const Mec Met Automatic process for determining, commanding and controlling a forced drainage before pressing for discontinuous presses.
US5613434A (en) * 1994-02-18 1997-03-25 Bucher-Guyer Ag Maschinenfabrik Method for controlling or regulating the pressing pressure for the separation of solids and liquids

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590046A1 (en) * 1985-11-14 1987-05-15 Champagne Station Oenotechniqu Method and device for automating a press
FR2597629A2 (en) * 1985-11-14 1987-10-23 Champagne Station Oenotechniqu Method and device for automating at press
US5231922A (en) * 1987-03-05 1993-08-03 Bucher-Guyer Ag Maschinenfabrik Process for control of extraction of juice from organic products
FR2669266A1 (en) 1990-11-16 1992-05-22 Chalonnaises Const Mec Met PRESSING METHOD AND DEVICE FOR ITS IMPLEMENTATION.
FR2695862A1 (en) 1992-09-23 1994-03-25 Chalonnaises Const Mec Met Automatic control of lateral grape press - via pressure, vol. and flow reference cycle which takes account of quality and legislative criteria
FR2701889A1 (en) 1993-02-23 1994-09-02 Chalonnaises Const Mec Met Automatic process for determining, commanding and controlling a forced drainage before pressing for discontinuous presses.
US5613434A (en) * 1994-02-18 1997-03-25 Bucher-Guyer Ag Maschinenfabrik Method for controlling or regulating the pressing pressure for the separation of solids and liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800974A1 (en) * 1999-11-15 2001-05-18 Serge Martinez Operation of wine press having screw driving opposed plates together in cylindrical cage, steps up pressure successively avoiding return to zero

Also Published As

Publication number Publication date
ES2147470T3 (en) 2000-09-01
PT908297E (en) 2000-10-31
FR2769473A1 (en) 1999-04-16
DE69800117D1 (en) 2000-05-25
ATE191880T1 (en) 2000-05-15
FR2769473B1 (en) 1999-12-03
EP0908297B1 (en) 2000-04-19
GR3033739T3 (en) 2000-10-31
DE69800117T2 (en) 2001-05-17

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