EP0029392B1 - Continuous press for the dehydration of pulps - Google Patents

Continuous press for the dehydration of pulps Download PDF

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Publication number
EP0029392B1
EP0029392B1 EP80401637A EP80401637A EP0029392B1 EP 0029392 B1 EP0029392 B1 EP 0029392B1 EP 80401637 A EP80401637 A EP 80401637A EP 80401637 A EP80401637 A EP 80401637A EP 0029392 B1 EP0029392 B1 EP 0029392B1
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EP
European Patent Office
Prior art keywords
wheel
crown
levers
press
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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EP80401637A
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German (de)
French (fr)
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EP0029392A1 (en
Inventor
Jean-Luc Berry
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GIE VALPRON
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GIE VALPRON
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Publication date
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Priority to AT80401637T priority Critical patent/ATE5467T1/en
Publication of EP0029392A1 publication Critical patent/EP0029392A1/en
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Publication of EP0029392B1 publication Critical patent/EP0029392B1/en
Expired legal-status Critical Current

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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
    • B30B9/20—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 rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
    • B30B9/207—Roller-and-ring presses

Definitions

  • the present invention relates to a continuous press intended for extracting by pressing the juice of industrial products such as beet or apple pulps, green cut fodder, in order either to recover this juice or to increase the dry matter content of the product in order reduce energy consumption during final drying.
  • industrial products such as beet or apple pulps, green cut fodder
  • presses which use two cylinders arranged one inside the other and offset so that the products introduced between the two cylinders can be pressed at the point of internal tangency of the cylinders.
  • the press according to this patent comprises an outer ring which is applied radially against a central wheel by means of a roller device which rests externally on the outer ring and can clamp it on the central wheel in a way adjustable by means of a clamping system arranged on either side of the wheel and the crown.
  • the roller clamping system is integral with the press frame so that the radial clamping force of one pressing cylinder on the other cannot be oriented at will, which is particularly annoying when the we want to squeeze all kinds of products.
  • the products to be pressed can have a variable consistency and constitution, which requires a particular choice of the position of the point of tangency or tightening of the two cylinders relative to the point of introduction for example, products between the cylinders .
  • the support of the cylinders and the clamping forces from one cylinder to the other are obtained by numerous and fixed mechanical parts, such as for example rollers between frame and external cylinder, tie rods and many other parts, so that in total the press constitutes a complicated machine consisting of a set of rigidly assembled elements, which prevents it from operating reliably for various types of products to be pressed. .
  • the object of the present invention is to remedy the above drawbacks in particular by proposing a very improved press and having all the qualities of flexibility of use desired, that is to say allowing, inter alia, the two internally tangent pressing cylinders to carry out a continuous, regular and reliable pressing of very diverse products without affecting the operation of the press.
  • a very improved press and having all the qualities of flexibility of use desired, that is to say allowing, inter alia, the two internally tangent pressing cylinders to carry out a continuous, regular and reliable pressing of very diverse products without affecting the operation of the press.
  • the invention relates to a continuous press intended for pressing any products, such as for example vegetables, fruit or fodder and of the type comprising a central wheel associated with an outer crown constituting with the wheel a movable assembly in rotation. of two cylinders which are substantially tangent internally and between which said products are pressed, said outer ring being applied radially against the central wheel by means of a roller device or the like which bear externally on the outer ring and can tighten the latter on the central wheel in an adjustable manner by means of a clamping system arranged laterally on either side of the wheel and of the crown, characterized in that said clamping system consists of a first pair of levers coupled in such a way swiveling on bogies or rollers or reels supports and by a second pair of levers able to pivot freely around the axis of rotation of the wheel, said pairs of levers each journalling by one of their ends on a common axis maintained in a fixed position and also adjustable on the press frame to modify at will the position of the
  • lever clamping system is particularly judicious and effective for applying a precise clamping force to the outer ring by means of rollers or coils secured to a support which may have different orientations relative to the point d 'introduction of products to be pressed, which advantageously allows the pressing of very diverse products.
  • the aforementioned common axis is maintained on the frame by means of a bar provided with holes constituting various possible fixing points of the bar on the frame to allow a
  • orientation of the force or point of tightening of the crown on the wheel in a direction which can be fixed from a substantially vertical position corresponding to a high position of the coil holder up to a position exceeding the horizontal, inside d 'an angle of about 135 °.
  • the periphery of the rim of the central wheel has a profile with a wavy generator, while the inside of the outer ring also has a profile with a wavy generator corresponding to that of said rim.
  • These outer rings also serve to reinforce a perforated sheet belt.
  • fixed or mobile wiping, absorption, suction or blowing means for removing the expelled liquid are placed in the vicinity of the point of maximum pressure, outside of the outer ring, preferably between the above coils and rings.
  • the press according to the invention is further characterized in that the external profile of the rings has the form of opposite double truncated cones, and the external profile of the coils also has the form of double opposite conical trunks in relation to the external profile of the rings.
  • the coils transmitting the tightening force to the rings are rotated in one direction and at a speed in relation to the direction and the speed of rotation printed on the central wheel.
  • Figure 1 shows a schematic elevational view of the press according to the invention.
  • FIG. 2 shows a partial section of the press in left view according to points A, B, C of Figure 1 but on a different scale.
  • the press essentially comprises a central wheel 1, the hub 1A of which is integral with an axis 2 supported and driven in rotation by any known mechanical means, for example by a variable speed drive 2A schematically represented and carried by a base or frame 3.
  • an outer ring 4 constituted by a perforated belt with an inner diameter slightly greater than the outer diameter of the rim 1B, and by one or more outer rings 5, constitutes in association with the central wheel 1 a movable assembly in rotation of two cylinders substantially tangent internally.
  • the outer ring is applied to the central wheel 1 by means of two pairs of levers 6 and 6 ', 7 and 7', located on either side of the central wheel 1 and the outer ring 4, 5. All of these levers are articulated by one of their ends on a common and fixed axis 8. The other end of the levers 6, 6 'on the one hand and 7, 7' on the other hand pivots respectively on two pivots 9 and 10 associated with a mechanical, hydraulic or pneumatic clamping means 9 of a known type.
  • the clamping system 9 allows the levers 7, 7 'to be brought closer or apart at will from the levers 6, 6', that is to say ultimately the hubs 6A, 6'A of the pivots 12, 12 ' bogies so as to apply in a balanced manner to the coils 14, 14 ′ an approximately directed tightening force along L.
  • the position of the axis 8 is kept fixed by means of a return bar 15 fixed at 16 on the frame or base 3 and the useful length of which can be modified by the use for the fixing point 16 of holes 16 'provided for various positions on the reminder bar.
  • blowing or vacuum suction devices 20 are placed between the coils 14 and 14 'and directed between the rings 5 towards the bottom of the press.
  • the wheel 1 is rotated in the direction of the arrow F, driving the belt 4 and the rings 5 applied against the rim 1 B practically without slipping thanks to the tightening force provided by the system 9 and retransmitted by the levers 6 and 6 ', 7 and 7' to the coils 14 and 14 'which rotate freely while resting on the periphery of the rings5.
  • the product to be pressed, soaked in liquid, is introduced into E by means not shown and is driven in the direction of arrow F, between the deflectors 19, under the effect of the gradual approximation of the rim 1 B and the perforated sheet of the outer ring 4, which move in the same direction and at almost equal linear speeds.
  • the clamping force is therefore progressive and prolonged all along the path of the product.
  • the liquid is expelled gradually through the perforated belt of the crown 4. Taking into account the small angle formed by the walls of the associated clinydres in the mobile assembly in rotation, the product does not tend to return backward.
  • the separated liquid trickles along the outer wall of the perforated belt and moves towards the lowest point of the apparatus oi it can be collected by not shown simple means.
  • the product is collected in a thin, non-kneaded layer which promotes rapid expulsion of a large quantity of liquid.
  • This liquid is either driven down from the press by the blowing devices 20, or sucked by vacuum suction devices not shown. Thanks to the clamping system 9 adjustable by conventional means not shown, it is possible to apply a known and calibrated force at the end of the pressing operation.
  • the pressed product more or less adheres to the walls of the rim 1 B and of the perforated sheet surrounding the crown 4.
  • the flexible scrapers 17 and 18 detach it from these walls and discharge it laterally at the exit point S.

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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)
  • Paper (AREA)
  • Press Drives And Press Lines (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

1. Continuous press adapted to press any products whatsoever such for instance as vegetables, fruits or fodders and of the type comprising a central wheel (1) associated with an outer crown (4) forming together with the wheel (1) an assembly movable in rotation of two substantially inside tangential cylinders between which said products are pressed, said outer crown (4) being radially applied against the central wheel (1) by means of a device with rollers or the like (13, 14) which are bearing outside on the outer crown (4) and may adjustably clamp the latter to the central wheel (1) by means of a clamping system arranged laterally on either side of the wheel (1) and of the crown (4), characterized in that said clamping system consists of a first pair of levels (7, 7') pivotally coupled to boggies or supports (13, 13') for rollers or rolls (14, 14') and of a second pair of levers (6, 6') adapted to freely pivot about the axis (2) of rotation of the wheel (1), said pairs of levers (6, 6' and 7, 7') being journaled each one with one of their ends onto a common shaft (8) kept in a stationary position and also adjustable on the frame (3) of the press so as to modify at will the position of the point of clamping the crown (4) onto said wheel (1), and with their other end onto two pivots (10, 11), respectively, associated with a clamping means (9) for moving the levers (7, 7') towards or away from the levers (6, 6').

Description

La présente invention concerne une presse continue destinée à extraire par pressage le jus de produits industriels tels que pulpes de betteraves ou de pommes, fourrages coupés en vert, afin soit de récupérer ce jus, soit d'augmenter la teneur en matières sèches du produit afin de réduire la consommation d'énergie lors du séchage final.The present invention relates to a continuous press intended for extracting by pressing the juice of industrial products such as beet or apple pulps, green cut fodder, in order either to recover this juice or to increase the dry matter content of the product in order reduce energy consumption during final drying.

Plusieurs types de presses sont déjà utilisés: soit du modèle à vis sans fin tournant à l'intérieur d'un cylindre perforé fixe permettant d'évacuer le liquide séparé sous l'effet de la pression due à l'action de la vis; soit du modèle à cylindres à axes parallèles travaillant à la manière des cylindres de laminoirs, assurant une série de pressions élevées successives mais de très courte durée, l'évacuation du liquide se faisant par des orifices de formes et dimensions variées, prévus dans un ou plusieurs des cylindres.Several types of presses are already used: either of the worm screw model rotating inside a fixed perforated cylinder allowing the separated liquid to be evacuated under the effect of the pressure due to the action of the screw; either of the model with cylinders with parallel axes working in the manner of rolling mill cylinders, ensuring a series of successive high pressures but of very short duration, the evacuation of the liquid being carried out by orifices of various shapes and dimensions, provided in one or several of the cylinders.

Ces appareils présentent certains avantages tels que celui de fonctionner en continu, mais aussi des inconvénients tels que la puissance à mettre en oeuvre et l'absence de possibilité de réglage de la pression pour le premier modèle ou la durée de pression réduite et la réabsorption presqu'immédiate par le produit pressé d'une partie du liquide séparé pour le second modèle.These devices have certain advantages such as that of operating continuously, but also disadvantages such as the power to be used and the absence of possibility of adjusting the pressure for the first model or the duration of reduced pressure and the almost reabsorption. 'immediate by the pressed product of part of the liquid separated for the second model.

D'après le brevet allemand n° 49931, on connait également des presses utilisant deux cylindres agencés l'un dans l'autre et excentrés de manière que les produits introduits entre les deux cylindres puissent être pressés au point de tangence intérieure des cylindres.According to German Patent No. 49931, presses are also known which use two cylinders arranged one inside the other and offset so that the products introduced between the two cylinders can be pressed at the point of internal tangency of the cylinders.

Plus précisément, la presse selon ce brevet comprend une couronne extérieure qui est appliquée radialement contre une roue centrale au moyen d'un dispositif à galets qui prennent extérieurement appui sur la couronne extérieure et peuvent serrer celle-ci sur la roue centrale d'une manière réglable au moyen d'un système de serrage agencé de part et d'autre de la roue et de la couronne. Cependant, le système de serrage par galets est solidaire du bâti de la presse de sorte que l'effort de serrage radial d'un cylindre de pressage sur l'autre ne peut pas être orienté à volonté, ce qui est particulièrement fâcheux lorsque l'on veut presser toutes sortes de produits. En effet, les produits à presser peuvent présenter une consistance et une constitution variables, ce qui exige un choix particulier de la position du point de tangence ou de serrage des deux cylindres par rapport au point d'introduction par exemple, des produits entre les cylindres. En outre, selon ce brevet allemand antérieur, le supportage des cylindres et les efforts de serrage d'un cylindre sur l'autre sont obtenus par des pièces mécaniques nombreuses et fixes, telles que par exemple des galets entre bâti et cylindre extérieur, des tirants et bien d'autres pièces, de sorte qu'au total la presse constitue une machine compliquée et constituée d'un ensemble d'éléments rigidement assemblés, ce qui l'empêche de fonctionner d'une manière fiable pour divers types de produits à presser.More specifically, the press according to this patent comprises an outer ring which is applied radially against a central wheel by means of a roller device which rests externally on the outer ring and can clamp it on the central wheel in a way adjustable by means of a clamping system arranged on either side of the wheel and the crown. However, the roller clamping system is integral with the press frame so that the radial clamping force of one pressing cylinder on the other cannot be oriented at will, which is particularly annoying when the we want to squeeze all kinds of products. Indeed, the products to be pressed can have a variable consistency and constitution, which requires a particular choice of the position of the point of tangency or tightening of the two cylinders relative to the point of introduction for example, products between the cylinders . In addition, according to this prior German patent, the support of the cylinders and the clamping forces from one cylinder to the other are obtained by numerous and fixed mechanical parts, such as for example rollers between frame and external cylinder, tie rods and many other parts, so that in total the press constitutes a complicated machine consisting of a set of rigidly assembled elements, which prevents it from operating reliably for various types of products to be pressed. .

La présente invention a pour but de remédier notamment aux inconvénients ci-dessus en proposant une presse très perfectionnée et présentant toutes les qualités de souplesse d'emploi voulues, c'est-à-dire permettant entre autre aux deux cylindres de pressage intérieurement tangents de réaliser un pressage continu, régulier et fiable de produits très divers sans que le fonctionnement de la presse soit affecté. En bref, quelles que soient les conditions et les exigences de l'opération de pressage à effectuer, on sera toujours certain que la presse selon l'invention permettra de les satisfaire.The object of the present invention is to remedy the above drawbacks in particular by proposing a very improved press and having all the qualities of flexibility of use desired, that is to say allowing, inter alia, the two internally tangent pressing cylinders to carry out a continuous, regular and reliable pressing of very diverse products without affecting the operation of the press. In short, whatever the conditions and requirements of the pressing operation to be carried out, it will always be certain that the press according to the invention will make it possible to satisfy them.

A cet etfet, l'invention a pour objet une presse continue destinée à presser des produits quelconques, tels que par exemple légumes, fruits ou fourrages et du type comprenant une roue centrale associée à une couronne extérieure constituant avec la roue un ensemble mobile en rotation de deux cylindres sensiblement tangents intérieurement et entre lesquels sont pressés lesdits produits, ladite couronne extérieure étant appliquée radialement contre la roue centrale au moyen d'un dispositif à galets ou analogues qui prennent extérieurement appui sur la couronne extérieure et peuvent serrer celle-ci sur la roue centrale d'une manière réglable au moyen d'un système de serrage agencé latéralement de part et d'autre de la roue et de la couronne, caractérisée en ce que ledit système de serrage est constitué par une première paire de leviers attelés de façon pivotante sur des bogies ou supports de galets ou bobines et par une deuxième paire de leviers susceptibles de pivoter librement autour de l'axe de rotation de la roue, lesdites paires de leviers tourillonnant chacune par l'une de leurs extrémités sur un axe commun maintenu en position fixe et également réglable sur le bâti de la presse pour modifier à volonté la position du point de serrage de la couronne sur ladite roue, et par leur autre extrémité sur respectivement deux pivots associés à un moyen de serrage pour rapprocher ou écarter l'une de l'autre les deux paires de leviers.To this end, the invention relates to a continuous press intended for pressing any products, such as for example vegetables, fruit or fodder and of the type comprising a central wheel associated with an outer crown constituting with the wheel a movable assembly in rotation. of two cylinders which are substantially tangent internally and between which said products are pressed, said outer ring being applied radially against the central wheel by means of a roller device or the like which bear externally on the outer ring and can tighten the latter on the central wheel in an adjustable manner by means of a clamping system arranged laterally on either side of the wheel and of the crown, characterized in that said clamping system consists of a first pair of levers coupled in such a way swiveling on bogies or rollers or reels supports and by a second pair of levers able to pivot freely around the axis of rotation of the wheel, said pairs of levers each journalling by one of their ends on a common axis maintained in a fixed position and also adjustable on the press frame to modify at will the position of the clamping point of the crown on said wheel, and by their other end respectively on two pivots associated with a clamping means for bringing the two pairs of levers together or away from one another.

On comprend déjà que ce système de serrage par leviers est particulièrement judicieux et efficace pour appliquer un effort de serrage précis sur la couronne extérieure par l'intermédiaire de galets ou bobines solidaires d'un support qui peut avoir des orientations différentes par rapport au point d'introduction des produits à presser, ce qui permet avantageusement le pressage de produits très divers.It is already understood that this lever clamping system is particularly judicious and effective for applying a precise clamping force to the outer ring by means of rollers or coils secured to a support which may have different orientations relative to the point d 'introduction of products to be pressed, which advantageously allows the pressing of very diverse products.

Selon une autre caractéristique de l'invention, l'axe commun précité est maintenu sur le bâti par l'intermédiaire d'une barre munie de trous constituant divers points de fixation possibles de la barre sur le bâti pour permettre uneAccording to another characteristic of the invention, the aforementioned common axis is maintained on the frame by means of a bar provided with holes constituting various possible fixing points of the bar on the frame to allow a

orientation de l'effort ou point de serrage de la couronne sur la roue suivant une direction pouvant être fixée depuis une position sensiblement verticale correspondant à une position haute du support de bobines jusqu'à une position dépassant l'horizontale, à l'intérieur d'un angle d'environ 135°.orientation of the force or point of tightening of the crown on the wheel in a direction which can be fixed from a substantially vertical position corresponding to a high position of the coil holder up to a position exceeding the horizontal, inside d 'an angle of about 135 °.

Suivant encore une autre caractéristique de l'invention, la périphérie de la jante de la roue centrale présente un profil à génératrice ondulée, tandis que l'intérieur de la couronne extérieure présente lui aussi un profil à génératrice ondulée correspondant à celui de ladite jante.According to yet another characteristic of the invention, the periphery of the rim of the central wheel has a profile with a wavy generator, while the inside of the outer ring also has a profile with a wavy generator corresponding to that of said rim.

On ajoutera encore ici que la couronne extérieure précitée est ceinturée notamment par des anneaux extérieurs avec lesquels coopèrent les bobines précitées.It will also be added here that the aforementioned outer ring is surrounded in particular by outer rings with which the above coils cooperate.

Ces anneaux extérieurs servent aussi à renforcer une ceinture en tôle perforée.These outer rings also serve to reinforce a perforated sheet belt.

Selon encore une autre caractéristique de l'invention, des moyens fixes ou mobiles d'essuyage, d'absorption, d'aspiration ou de soufflage pour l'enlèvement du liquide expulsé sont placés au voisinage du point de pression maximale, à l'extérieur de la couronne extérieure, de préférence entre les bobines et les anneaux précités.According to yet another characteristic of the invention, fixed or mobile wiping, absorption, suction or blowing means for removing the expelled liquid are placed in the vicinity of the point of maximum pressure, outside of the outer ring, preferably between the above coils and rings.

La presse selon l'invention est encore caractérisée en ce que le profil extérieur des anneaux a la forme de doubles troncs de cône opposés, et le profil extérieur des bobines a également la forme de doubles troncs de cône opposés en rapport avec le profil extérieur des anneaux.The press according to the invention is further characterized in that the external profile of the rings has the form of opposite double truncated cones, and the external profile of the coils also has the form of double opposite conical trunks in relation to the external profile of the rings.

On notera encore que les bobines transmettant aux anneaux l'effort de serrage sont entrainées en rotation dans un sens et à une vitesse en rapport avec le sens et la vitesse de rotation imprimés à la roue centrale.It will also be noted that the coils transmitting the tightening force to the rings are rotated in one direction and at a speed in relation to the direction and the speed of rotation printed on the central wheel.

Un exemple de réalisation d'une machine de pressage, conforme à la présente invention, sera maintenant décrit en se reportant aux figures 1 et 2 des dessins annexés et donnés à titre non limitatif.An exemplary embodiment of a pressing machine, according to the present invention, will now be described with reference to Figures 1 and 2 of the accompanying drawings and given without limitation.

La figure 1 représente une vue schématique en élévation de la presse selon l'invention.Figure 1 shows a schematic elevational view of the press according to the invention.

La figure 2 représente une coupe partielle de la presse en vue de gauche suivant les points A, B, C de la figure 1 mais à une échelle différente.2 shows a partial section of the press in left view according to points A, B, C of Figure 1 but on a different scale.

La presse comprend essentiellement une roue centrale 1 dont le moyeu 1A est solidaire d'un axe 2 supporté et entraîné en rotation par tout moyen mécanique connu par exemple par un motovariateur 2A schématiquement représenté et porté par un socle ou bâti 3.The press essentially comprises a central wheel 1, the hub 1A of which is integral with an axis 2 supported and driven in rotation by any known mechanical means, for example by a variable speed drive 2A schematically represented and carried by a base or frame 3.

Sur la jante 1 de la roue 1, une couronne extérieure 4 constituée par une ceinture perforée de diamètre intérieur un peu supérieur au diamètre extérieur de la jante 1B, et par un ou plusieurs anneaux extérieurs 5, constitue en association avec la roue centrale 1 un ensemble mobile en rotation de deux cylindres sensiblement tangents intérieurement. La couronne extérieure est appliquée sur la roue centrale 1 au moyen de deux paires de leviers 6 et 6', 7 et 7', situés de part et d'autre de la roue centrale 1 et de la couronne extérieure 4, 5. Tous ces leviers sont articulés par une de leurs extrémités sur un axe commun et fixe 8. L'autre extrémité des leviers 6, 6' d'une part et 7, 7' d'autre part tourillonne respectivement sur deux pivots 9 et 10 associés à un moyen de serrage 9 mécanique, hydraulique ou pneumatique d'un type connu.On the rim 1 of the wheel 1, an outer ring 4 constituted by a perforated belt with an inner diameter slightly greater than the outer diameter of the rim 1B, and by one or more outer rings 5, constitutes in association with the central wheel 1 a movable assembly in rotation of two cylinders substantially tangent internally. The outer ring is applied to the central wheel 1 by means of two pairs of levers 6 and 6 ', 7 and 7', located on either side of the central wheel 1 and the outer ring 4, 5. All of these levers are articulated by one of their ends on a common and fixed axis 8. The other end of the levers 6, 6 'on the one hand and 7, 7' on the other hand pivots respectively on two pivots 9 and 10 associated with a mechanical, hydraulic or pneumatic clamping means 9 of a known type.

Les leviers 7, 7' sont également attelés de manière pivotante en 12, 12' à des supports ou bogies 13, 13' munis de bobines 14, 14' prenant appui sur les anneaux 5 de la couronne extérieure 4 afin de l'appliquer tangentiellement sur la roue centrale 1. Les leviers 6, 6' sont solidaires de l'axe 2 de la roue centrale 1 mais sont libres en rotation par rapport à cet axe.The levers 7, 7 'are also pivotally coupled at 12, 12' to supports or bogies 13, 13 'provided with coils 14, 14' bearing on the rings 5 of the outer ring 4 in order to apply it tangentially on the central wheel 1. The levers 6, 6 'are integral with the axis 2 of the central wheel 1 but are free to rotate relative to this axis.

Ainsi, le système de serrage 9 permet de rapprocher ou d'écarter à volonté les leviers 7, 7' des leviers 6, 6', c'est-à-dire finalement les moyeux 6A, 6'A des pivots 12, 12' des bogies de façon à appliquer de manière équilibrée sur les bobines 14, 14' un effort de serrage approximativement dirigé suivant L.Thus, the clamping system 9 allows the levers 7, 7 'to be brought closer or apart at will from the levers 6, 6', that is to say ultimately the hubs 6A, 6'A of the pivots 12, 12 ' bogies so as to apply in a balanced manner to the coils 14, 14 ′ an approximately directed tightening force along L.

La position de l'axe 8 est maintenue fixe grâce à une barre de rappel 15 fixée en 16 sur le bâti ou socle 3 et dont la longueur utile peut être modifiée par l'utilisation pour le point de fixation 16 de trous 16' prévus à diverses positions sur la barre de rappel.The position of the axis 8 is kept fixed by means of a return bar 15 fixed at 16 on the frame or base 3 and the useful length of which can be modified by the use for the fixing point 16 of holes 16 'provided for various positions on the reminder bar.

Des râcleurs souples 17 et 18 immobilisés par rapport aux leviers 6 et 6' et des déflecteurs fixes 19 situés de part et d'autre de l'ensemble mobile en rotation sont représentés schématiquement sur la figure 1. Ces déflecteurs ferment latéralement, sans souci d'étanchéité, l'espace libre entre la roue centrale 1 et la couronne extérieure 4, 5 sur toute la partie inférieure de la presse jusqu'au voisinage des bobines de serrage 14,14' portées par les bogies 13,13'.Flexible scrapers 17 and 18 immobilized relative to the levers 6 and 6 'and fixed deflectors 19 located on either side of the mobile assembly in rotation are shown diagrammatically in FIG. 1. These deflectors close laterally, without worrying about 'sealing, the free space between the central wheel 1 and the outer ring 4, 5 over the entire lower part of the press to the vicinity of the clamping coils 14,14' carried by the bogies 13,13 '.

Un ou plusieurs dispositifs 20 de soufflage ou d'aspiration par dépression sont placés entre les bobines 14 et 14' et dirigés entre les anneaux 5 vers le bas de la presse.One or more blowing or vacuum suction devices 20 are placed between the coils 14 and 14 'and directed between the rings 5 towards the bottom of the press.

Le fonctionnement de la presse est le suivant:The operation of the press is as follows:

La roue 1 est entraînée en rotation dans le sens de la flèche F, entraînant pratiquement sans glissement la ceinture 4 et les anneaux 5 appliqués contre la jante 1 B grâce à l'effort de serrage fourni par le système 9 et retransmis par les leviers 6 et 6', 7 et 7' jusqu'aux bobines 14 et 14'qui tournent librement en prenant appui sur la périphérie des anneaux5.The wheel 1 is rotated in the direction of the arrow F, driving the belt 4 and the rings 5 applied against the rim 1 B practically without slipping thanks to the tightening force provided by the system 9 and retransmitted by the levers 6 and 6 ', 7 and 7' to the coils 14 and 14 'which rotate freely while resting on the periphery of the rings5.

Le produit à presser, imbibé de liquide, est introduit en E par des moyens non représentés et se trouve entrainé dans le sens de la flèche F, entre les déflecteurs 19, sous l'effet du rapprochement progressif de la jante 1 B et de la tôle perforée de la couronne extérieure 4, qui se déplacent dans le même sens et à des vitesses linéaires pratiquement égales.The product to be pressed, soaked in liquid, is introduced into E by means not shown and is driven in the direction of arrow F, between the deflectors 19, under the effect of the gradual approximation of the rim 1 B and the perforated sheet of the outer ring 4, which move in the same direction and at almost equal linear speeds.

Plus le produit se rapproche du point de serrage maximal, plus l'espace qui lui est réservé se réduit.The closer the product is to the maximum clamping point, the more space it has reserved.

L'effort de serrage est donc progressif et prolongé tout le long du trajet du produit. L'expulsion du liquide se fait progressivement au travers de la ceinture perforée de la couronne 4. Compte tenu de l'angle faible formé par les parois des clinydres associés dans l'ensemble mobile en rotation, le produit n'a pas tendance à revenir en arrière.The clamping force is therefore progressive and prolonged all along the path of the product. The liquid is expelled gradually through the perforated belt of the crown 4. Taking into account the small angle formed by the walls of the associated clinydres in the mobile assembly in rotation, the product does not tend to return backward.

Le liquide séparé ruisselle le long de la paroi extérieure de la ceinture perforée et se dirige vers le point bas de l'appareil oi' il peut être recueilli par des moyens simples non représentés.The separated liquid trickles along the outer wall of the perforated belt and moves towards the lowest point of the apparatus oi it can be collected by not shown simple means.

Vers la fin de l'opération, le produit est rassemblé en couche mince non malaxée ce qui favorise l'expulsion rapide d'une quantité de liquide élevée. Ce liquide est soit chassé vers le bas de la presse par les dispositifs de soufflage 20, soit aspiré par des dispositifs d'aspiration sous dépression non représentés. Grâce au système de serrage 9 réglable par des moyens classiques non représentés, on peut appliquer à la fin de l'opération de pressage une force connue et calibrée. Le produit pressé adhère plus ou moins aux parois de la jante 1 B et de la tôle perforée ceinturant la couronne 4. Les râcleurs souples 17 et 18 le détachent de ces parois et l'évacuent latéralement au point de sortie S.Towards the end of the operation, the product is collected in a thin, non-kneaded layer which promotes rapid expulsion of a large quantity of liquid. This liquid is either driven down from the press by the blowing devices 20, or sucked by vacuum suction devices not shown. Thanks to the clamping system 9 adjustable by conventional means not shown, it is possible to apply a known and calibrated force at the end of the pressing operation. The pressed product more or less adheres to the walls of the rim 1 B and of the perforated sheet surrounding the crown 4. The flexible scrapers 17 and 18 detach it from these walls and discharge it laterally at the exit point S.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et représenté qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and shown which has been given only by way of example.

Claims (7)

1. Continuous press adapted to press any products whatsoever such for instance as vegetables, fruits or fodders and of the type comprising a central wheel (1) associated with an outer crown (4) forming together with the wheel (1) an assembly movable in rotation of two substantially inside tangential cylinders between which said products are pressed, said outer crown (4) being radially applied against the central wheel (1) by means of a device with rollers or the like (13, 14) which are bearing outside on the outer crown (4) and may adjustably clamp the latter to the central wheel (1) by means of a clamping system arranged laterally on either side of the wheel (1) and of the crown (4), characterized in that said clamping system consists of a first pair of levers (7, 7') pivotally coupled to boggies or supports (13, 13') for rollers or rolls (14, 14') and of a second: pair of levers (6, 6') adapted to freely pivot about the axis (2) of rotation of the wheel (1), said pairs of levers (6, 6' and 7, 7') being journaled each one with one of their ends onto a common shaft (8) kept in a stationary position and also adjustable on the frame (3) of the press so as to modify at will the position of the point of clamping the crown (4) onto said wheel (1), and with their other end onto two pivots (10, 11), respectively, associated with a clamping means (9) for moving the levers (7, 7') towards or away from the levers (6, 6').
2. Press according to claim 1, characterized in that said common shaft (8) is retained onto the frame (3) through the medium of a bar (15) provided with holes (16') forming various points (16) of fastening the bar onto the frame so as to allow an orientation of the force or the point of clamping the crown (4) onto the wheel (1). along a direction which may be fixed from a substantially vertical position corresponding to an upper position of the movable supports (13, 13') for the rolls (14, 14') to a position beyond the horizontal with an angle of about 1350.
3. Press according to claim 1 or 2, characterized in that the periphery of the rim (1 B) of the central wheel (1) exhibits a profile with a wavy generating line whereas the inside of the outer crown (4) also exhibits a profile with. a wavy generating line similar and corresponding to that of said rim.
4. Press according to one of the claims 1 to 3, characterized in that said outer crown (4) is girdled in particular by outer rings with which the aforesaid rolls (14, 14') are co-operating.
5. Press according to one of the foregoing claims, characterized in that stationary or movable wiping, absorption, suction or blowing means for the removal of the expelled liquid are located in the vicinity of the point of maximum pressure outside of the outer crown (4), preferably between the rolls (14, 14') and between the rings (5). ;
6. Press according to claim 4 or 5, characterized in that the outer profile of the rings (5) has the shape of double opposite frustums of cone and the outer profile of the rolls (14,14') also has the shape of double opposite frustums of cone in relation to the outer profile of the rings (5).
7. Press according to one of claims 1 to 6, characterized in that the rolls (14, 14') transmitting to the rings (5) the clamping force are rotated in a direction and with a speed in relation to the direction and the speed of rotation imparted to the central wheel (1).
EP80401637A 1979-11-15 1980-11-14 Continuous press for the dehydration of pulps Expired EP0029392B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401637T ATE5467T1 (en) 1979-11-15 1980-11-14 CONTINUOUS PRESS FOR DRAINING WATER FROM THE PULP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7928198A FR2469273A1 (en) 1979-11-15 1979-11-15 CONTINUOUS PRESS FOR PULP DEHYDRATION
FR7928198 1979-11-15

Publications (2)

Publication Number Publication Date
EP0029392A1 EP0029392A1 (en) 1981-05-27
EP0029392B1 true EP0029392B1 (en) 1983-11-30

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ID=9231730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401637A Expired EP0029392B1 (en) 1979-11-15 1980-11-14 Continuous press for the dehydration of pulps

Country Status (5)

Country Link
EP (1) EP0029392B1 (en)
AT (1) ATE5467T1 (en)
DE (1) DE3065790D1 (en)
ES (1) ES496900A0 (en)
FR (1) FR2469273A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527138A1 (en) * 1982-05-24 1983-11-25 Sica Pulposec Chevrieres PRESS CONTINUES, ESPECIALLY FOR PRESSING BEET PULPES AND OTHER PRODUCTS CONTAINING JUICES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49931C (en) * M. CRAW-FORD in New-York, V. St. A Press with eccentric cylindrical pressing surfaces
FR592105A (en) * 1924-03-20 1925-07-28 Emidecau Sa Continuous action press with adjustable pressure and hydraulic control
US3000294A (en) * 1957-10-01 1961-09-19 Lowe Edison Filter press

Also Published As

Publication number Publication date
FR2469273A1 (en) 1981-05-22
ES8201889A1 (en) 1982-01-01
EP0029392A1 (en) 1981-05-27
ATE5467T1 (en) 1983-12-15
ES496900A0 (en) 1982-01-01
DE3065790D1 (en) 1984-01-05

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