EP3299479A1 - Integral annular strip for diffuser - Google Patents

Integral annular strip for diffuser Download PDF

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Publication number
EP3299479A1
EP3299479A1 EP17190764.5A EP17190764A EP3299479A1 EP 3299479 A1 EP3299479 A1 EP 3299479A1 EP 17190764 A EP17190764 A EP 17190764A EP 3299479 A1 EP3299479 A1 EP 3299479A1
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EP
European Patent Office
Prior art keywords
annular
orifices
bandage
annular tire
tire
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.)
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Application number
EP17190764.5A
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German (de)
French (fr)
Inventor
Michaël FIEBIG
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Cordonnier SA
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Cordonnier SA
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Publication date
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Publication of EP3299479A1 publication Critical patent/EP3299479A1/en
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    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C13B10/08—Extraction of sugar from sugar beet with water
    • C13B10/10—Continuous processes
    • C13B10/102—Continuous processes having rotatable means for agitation or transportation
    • C13B10/105—Rotating apparatus
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C13B10/08—Extraction of sugar from sugar beet with water
    • C13B10/12—Details of extraction apparatus, e.g. arrangements of pipes or valves

Definitions

  • the present invention relates to the field of the manufacture of sugar from a plant plant, and more specifically to the sugar extraction stage of the plant.
  • the extraction process consists in collecting the sweet juice, which is then filtered and concentrated by evaporation before crystallization.
  • the sweet juice is usually extracted by diffusion from thin strips of beetroot roots, called cossettes. This operation, based on the principle of osmosis, aims to pass the sugar contained in the chips in water.
  • a horizontal diffuser is generally used provided with a rotary cylinder, such as for example that described in GB 1 375 280 .
  • the chips enter through a first end and move in the axial direction in a first direction, while water, generally warm, flows in the axial direction of the cylinder, in a second direction, opposite the first direction.
  • the water inlet is generally at the second end of the cylinder, opposite the first end.
  • the water is enriched with the sugar of the chips, in a continuous way.
  • the sweet juice is then recovered at the first end, while the sugar-depleted chips are evacuated by the second end.
  • the cylinder is rotated about its longitudinal axis which is horizontal.
  • the cylinder is provided with several annular tires that cooperate with drive rollers, called rollers, driven by motors.
  • each annular tire is supported on a free roller (free roller) and a drive roller (drive roller), the rotation of which causes the rotation of the cylinder.
  • the bandages are made in several parts to allow their mounting around the cylinder wall.
  • An object of the invention is to provide an annular bandage to avoid the aforementioned drawbacks.
  • the invention relates to an annular bandage of a horizontal diffuser cylinder for extracting juice from chips, the one-piece annular bandage having a main axis and extending radially, at a radial height, between an inner peripheral face and an outer peripheral face, said one-piece annular tire extending axially, along an axial thickness, between a first annular lateral face and a second annular lateral face, the one-piece annular tire being formed in one piece and comprising furthermore, a plurality of first orifices opening into the first annular lateral face and a plurality of second orifices opening into the first orifices and into the inner peripheral face, the first and second orifices being configured to receive position adjustment members annular bandage monoblock relative to the cylinder.
  • annular bandage is formed in one piece, that is to say monobloc, firstly avoids the risk of incorrect positioning between the different parts of the bandage, a risk that encounter in previous bandages. Then, it reduces the assembly time, the bandage is simply driven axially around the cylinder or previously attached to a shell which is then secured to the cylinder.
  • the annular bandage according to the invention is also more robust thanks to its monobloc structure.
  • the mounting of the tire on the cylinder is facilitated by the fact that the adjustment members can be introduced laterally into the second orifices via the first orifices which open into the first annular lateral face.
  • the adjusting members serve to correct the coaxiality of the tire by aligning the main axis of the annular tire with that of the cylinder before the joining of the tire to the cylinder.
  • the adjustment members are positioned in the second orifices during the adjustment operation. To do this, the adjustment members are first introduced into the first orifices before being positioned in the second orifices.
  • the arrangement of the first and second orifices makes it possible to rapidly position the adjusting members, which also contributes to facilitating the assembly operations of the tire to the cylinder.
  • the adjusting members are removed from the annular bandage. It is specified here that the bandage can be mounted directly on the cylinder or indirectly via a ferrule which is fixed to the cylinder.
  • the annular tire also has a plurality of third orifices, similar to the first orifices but opening into the second annular lateral face, and a plurality of fourth orifices, similar to the second orifices and opening into the third orifices and into the inner peripheral face.
  • the third and fourth orifices are symmetrical to the first and second orifices relative to a median plane which is orthogonal to the main axis of the annular bandage.
  • the third and fourth ports are also configured to receive adjusters.
  • annular bandage is preferably made of steel.
  • the first orifices are cavities formed in the annular tire, while the second orifices are holes extending radially between the inner peripheral face and the cavities.
  • the holes are dimensioned to receive the adjusting members, the latter extending radially to come into contact with the cylinder.
  • the adjusting members are jackscrews whose head protrudes into the cavities formed by the first and third orifices, which allows easy adjustment.
  • These screw rods cylinders extend into the holes formed by the second and fourth orifices.
  • the tire according to the invention has a central portion which extends radially over substantially half of the height radial of the annular bandage from the inner peripheral face, and said central portion comprises said cavities.
  • the cavities are disposed in the central portion of the annular tire, close to the cylinder.
  • This configuration makes it possible to offer a large radial thickness of material between the cavities and the outer peripheral face, which improves the robustness of the bandage.
  • the axial depth of the cavities is less than one quarter of the axial thickness. This configuration makes it possible to offer an important axial thickness of material between the cavities, which further improves the robustness of the bandage.
  • the length of the cavities is at least equal to 1.5 times the radial width of the cavities.
  • the cavities have an oblong shape large enough to allow the operator to easily position the adjustment members in the second cavities, or remove them from the bandage after the setting operation.
  • the radial width of the cavities is less than half the radial height of the annular bandage.
  • the cavities therefore occupy a volume substantially less than that of the material constituting the bandage, so as to ensure the mechanical strength of the bandage.
  • the axial thickness of the annular bandage considered between two first adjacent orifices is constant over substantially the entire radial thickness of said annular bandage.
  • the bandage according to the invention is therefore massive, which also contributes to its robustness.
  • the right section of the annular bandage considered in a plane containing the main axis, has a general shape at least quadrangular, for example rectangular or trapezoidal.
  • the inner peripheral face having a convex shape. The convex shape of the inner peripheral face makes it possible to position adjusting shims between the annular tire and the cylinder.
  • the convex inner peripheral face comprises at least two annular faces inclined relative to each other. Thanks to this conformation, the convex inner peripheral face of the bandage comes in plane plane support against the shims of adjustment, thus improving the stability of the assembly.
  • the one-piece annular tire according to the invention further comprises a plurality of recesses, formed in the first annular lateral face, the recesses being disposed between some of the first orifices and the inner peripheral face.
  • These recesses have the function of receiving locking members which are fixed relative to the cylinder, in order to immobilize the bandage with respect to the cylinder.
  • the recesses preferably have an orthoradial length which is smaller than that of the cavity.
  • the second orifices have radial axes which are arranged axially between the first and second annular side faces.
  • the mounting members considered in the axial direction of the annular tire, extend between the first and second side faces.
  • the outer peripheral face of the one-piece annular tire has a roughness Ra, according to ISO 4287, less than or equal to 7 micrometers, preferably less than or equal to 4 micrometers.
  • Ra roughness
  • the invention also relates to a method for manufacturing a one-piece annular bandage according to the invention, in which the annular bandage is molded in one piece, the first and second orifices then being made by removal of material after molding.
  • Such a method has the advantage of being simple to implement and provides a one-piece bandage which is solid and robust, and therefore having a longer life than traditional bandages. In addition, it makes it easy to obtain the aforementioned advantageous surface condition.
  • the invention also relates to a drive assembly comprising a ferrule having a first axis, and an annular tire according to the invention, and a plurality of wedges, the annular tire being disposed around the ferrule, the wedges being disposed between the ferrule and the inner peripheral face of the annular bandage.
  • the ferrule has a cylindrical shape and is intended to be fixed to the cylinder of the diffuser.
  • the ferrule is placed so that its first axis is vertical. Then put the ring bandage on the top. Then the coaxiality of the annular bandage is adjusted relative to the shell, after which a portion of the shims is placed between the shell and the annular bandage.
  • the annular tire is then fixed on the ferrule by means of locking members described below.
  • the ferrule is then tilted with the annular bandage so that the first axis of the ferrule is horizontal.
  • the shell is then welded to the cylinder prior to checking the coaxiality of the annular tire with respect to the cylinder. The remaining wedges are then placed between the annular bandage and the shell, and the shims are welded to the ferrule.
  • the drive assembly according to the invention further comprises adjusting members, arranged in the first and second orifices and configured to cooperate with the peripheral surface of the ferrule to allow adjustment of the coaxiality of the first axis of the ferrule and the main axis of the monobloc annular bandage.
  • the actuation of the adjusting members makes it possible to rotate the annular bandage with respect to shell, which makes it possible to quickly adjust the position of the main axis of the bandage with respect to the ferrule, so that the main axis of the bandage is coaxial with the first axis of the ferrule.
  • the drive assembly further preferably comprises locking members attached to the ferrule and cooperating with the recesses of the tire.
  • These blocking members preferably have the form of blocks which are housed in the recesses before being welded to the ferrule. These blocks are preferably made of metal.
  • the invention relates to a horizontal diffuser for extracting juice from chips, comprising a diffusion cylinder having a longitudinal axis which is horizontal, said diffusion cylinder comprising at least one drive assembly according to the invention, in which axis of the annular tire, and the longitudinal axis of the diffusion cylinder are coaxial.
  • the attachment of the drive assembly to the cylinder is preferably performed by welding.
  • the invention makes it possible to perform efficiently and quickly operations for replacing damaged cylinder parts.
  • Another advantage of the invention is to be able to easily manufacture the training unit in the workshop, unlike the prior art which generally requires an assembly on site.
  • the figure 1 partially illustrates a horizontal diffuser 10 for extracting sweet juice from beet root chips.
  • the horizontal diffuser 10 comprises a diffusion cylinder 12 having a longitudinal axis A which is horizontal.
  • the cylinder has a diameter of about six meters, and a length of about fifty meters.
  • the horizontal diffuser 10 comprises diffusion extraction means disposed in the cylinder 12. These means are known elsewhere and will not be described in detail here. An exemplary embodiment of such extraction means is described in particular in the document GB 1 375 280 .
  • the diffuser For its rotation of the cylinder 12 about its longitudinal axis A, the diffuser comprises a drive assembly 14, fixed to the cylinder 12, and carried by two rollers 16 disposed on the ground, namely a free roller and a roller. training. These rollers are rotatable about horizontal axes of rotation, and parallel to the longitudinal axis A of the cylinder 12.
  • the drive assembly 14 comprises a ferrule 18 which is fixed around the cylinder 12. More specifically, the ferrule 18 is welded to the cylinder 12, the latter being fitted inside the ferrule 18.
  • the drive assembly 14 further comprises an annular bandage 20 according to the present invention which is attached to the ferrule 18.
  • the annular tire 20 surrounds the cylinder 12 and bears on each of the two rollers 16.
  • the rotation of the drive roller causes the drive in rotation about the longitudinal axis A of the annular tire 20 and, consequently, the rotation of the cylinder 12.
  • the annular tire 20 has a main axis C which is perpendicular to the plane of the view of the figure 2 .
  • the annular tire 20 extends radially along a radial height H between an inner peripheral face 22 and an outer peripheral face 24.
  • the radial height H is of the order of 450 mm.
  • the one-piece annular tire 20 also has an internal diameter D which is of the order of 6400 mm.
  • the annular band 20 extends axially along an axial thickness E between a first annular lateral face 26 and a second annular side face 28.
  • the axial thickness E of the annular tire 20 is of the order 730 mm.
  • the annular band 20 comprises a plurality of first holes 30.
  • the first holes 30 are cavities 32 of oblong shape which are formed in the annular band 20.
  • the first orifices 30 open into the first annular lateral face 26.
  • the annular tire 20 has sixteen first orifices 30 which are angularly distributed regularly along the circumference of the bandage.
  • the annular band 20 could comprise a different number of first orifices 30.
  • the first orifices constitute cavities 32. These cavities 32 are disposed in a central portion 20a of the annular tire 20, this central portion 20a extending radially on substantially half the radial height H of the one-piece annular tire 20 since the inner peripheral face 22 towards the outer peripheral face 24.
  • the axial depth P of the cavities 32 is less than a quarter of the axial thickness E.
  • the cavities 32 have a length L - considered in a orthoradial direction - as well as a radial width l.
  • the length L of the cavities 32 is, in this example, substantially equal to 15 times the radial width l of said cavities 32.
  • the radial width l of the cavities is less than half the radial height H of the annular tire.
  • the one-piece annular tire 20 also comprises a plurality of third orifices 30 ' constituting cavities 32' which open into the second annular lateral face 28. More specifically in this example, the first and third orifices 30, 30 ' are symmetrical about a plane Q which is orthogonal to the main axis C of the one-piece annular tire.
  • the cross-section of the annular one-piece band 20, considered in a plane R containing the main axis C, has a quadrangular general shape, in this example substantially rectangular, it being specified that the inner peripheral face 22 has a convex shape.
  • the convex inner peripheral face comprises three annular flaps 40, 42, 44 which are inclined relative to each other. More specifically, the inner peripheral face 22 comprises a first annular flange 40, which is inclined relative to the main axis C, opening towards the first annular lateral face, a second annular flange 42 which is parallel to the axis main C, and a third annular pan 44 which is inclined relative to the main axis C, opening towards the second circular side face. The second annular flange 42 is disposed between the first and third annular flaps 40,44. The interest of this configuration will be explained below.
  • the one-piece annular tire 20 further comprises a plurality of first recesses 50 which are formed in the first annular lateral face 26. These recesses open into the first annular lateral face 26. Said recesses 50 are arranged radially between some of the first orifices and the face inner ring 22.
  • the orthoradial length R of the first recesses 50 corresponding to about one third of the orthoradial length L of the cavities 32.
  • the one-piece annular tire 20 has eight recesses 50 opening into the first annular lateral face 26. More precisely, a cavity 30 on two is associated with a recess 50.
  • the annular bandage further comprises second reinforcements 50 ', symmetrical to the first reinforcements relative to the plane Q.
  • the annular tire 20 also has a plurality of second orifices 60 which open into the first orifices 30 and into the inner peripheral face 22. These second orifices 60 are better visible on the Figures 3 to 6 .
  • the first and second orifices 30, 60 are configured to receive adjusting members 70 of the position of the annular tire with respect to the cylinder. These adjustment members 70 will be described in more detail below.
  • the second orifices 60 are holes 62 which extend radially between the inner peripheral face 22 and the cavities 32.
  • the annular tire 20 has a plurality of fourth holes 60 ' forming holes 62', which are symmetrical to the second orifices 60 with respect to the above-mentioned plane Q.
  • the holes 62 , 62 ' have a diameter of the order of 35 mm and extend radially about 80 mm.
  • the holes 62 have radial axes Y which are arranged axially between the first and second annular side faces 26,28.
  • annular bandage 20 also includes holes 17 for gripping and moving the bandage during its assembly to the ferrule.
  • the outer peripheral face 24 of the one-piece annular tire 20 has a roughness Ra according to the ISO 4287 standard which, in this example, is equal to 3.2 ⁇ m.
  • the annular bandage is in one piece. It is therefore a monoblock ring bandage. To do this, the annular bandage is molded in one piece.
  • the first and second ports 30,60 and the third and fourth ports 30 ', 60' are then made by removal of material after molding. It is also understood that the first and second recesses 50, 50 ' are made by removal of material after molding.
  • the "drive assembly 14 further comprises a plurality of first spacers 80 and second wedges 82, visible in particular on figures 7.8 , 10 and 11 , which are arranged between the ferrule 18 and the inner peripheral face 22 of the annular bandage.
  • the first and second shims are arranged between the ferrule and the inner peripheral face of the monoblock annular bandage. After putting the annular bandage around the ferrule upright, a portion of the first and second wedges is mounted to force to block the bandage relative to the ferrule. More exactly, some of the first and second wedges 80, 82 are disposed between the outer peripheral surface 18a of the ferrule 18 and the first and third annular flaps 40.
  • the drive assembly further comprises adjusting members 70, 70 ' visible on the figure 11 , constituted in this example by jackscrews, which extend into the holes 62, 62 ' and which are configured to bear on the peripheral surface 18a of the shell 18.
  • the actuation of the jackscrews has the effect of displacing the annular tire 20 relative to the ferrule 18 in order to adjust the coaxiality of the main axis C of the annular tire 20 relative to the axis of the ferrule.
  • the drive assembly further comprises locking members 90, 92 visible on the figure 9 , and having the form of blocks, which are welded to the ferrule and cooperate with the recesses 50,50 ' to maintain the annular bandage 20 relative to the ferrule 18.
  • the shell is then rotated so that its first axis is horizontal.
  • the shell is then welded to the cylinder.
  • the first and second 80,82 remaining wedges are then disposed between the third pan 44 of the shell and the annular bandage. After ensuring the coaxiality of the axis of the annular bandage with the axis of the cylinder, it welds the first and second wedges to the shell. Finally, the jackscrews are removed.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Tyre Moulding (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un bandage annulaire monobloc (20) d'un cylindre (12) de diffuseur horizontal (10) pour l'extraction de jus à partir de cossettes, le bandage annulaire étant formé d'une seule pièce et comprenant en outre une pluralité de premiers orifices (30) débouchant dans la première face latérale annulaire ainsi qu'une pluralité de deuxièmes orifices (60) débouchant dans les premiers orifices (30) et dans la face périphérique intérieure (22), les premiers et deuxièmes orifices (30, 60) étant configurés pour recevoir des organes de réglage (70) de la position du bandage annulaire par rapport au cylindre.The invention relates to a one-piece annular tire (20) of a horizontal diffuser cylinder (12) (10) for extracting juice from chips, the annular tire being formed in one piece and further comprising plurality of first orifices (30) opening into the first annular side face and a plurality of second orifices (60) opening into the first orifices (30) and into the inner peripheral face (22), the first and second orifices (30) , 60) being configured to receive adjusting members (70) of the position of the annular tire relative to the cylinder.

Description

Arrière-plan de l'inventionBackground of the invention

La présente invention concerne le domaine de la fabrication du sucre à partir d'une plante végétale, et plus spécifiquement l'étape d'extraction du sucre de la plante. Le processus d'extraction consiste à recueillir le jus sucré, qui est ensuite filtré puis concentré par évaporation avant cristallisation.The present invention relates to the field of the manufacture of sugar from a plant plant, and more specifically to the sugar extraction stage of the plant. The extraction process consists in collecting the sweet juice, which is then filtered and concentrated by evaporation before crystallization.

Le jus sucré est généralement extrait par diffusion à partir de fines lamelles de racines de betterave, appelées cossettes. Cette opération, basée sur le principe de l'osmose, a pour but de faire passer le sucre contenu dans les cossettes dans de l'eau.The sweet juice is usually extracted by diffusion from thin strips of beetroot roots, called cossettes. This operation, based on the principle of osmosis, aims to pass the sugar contained in the chips in water.

Pour effectuer cette extraction par diffusion, on utilise généralement un diffuseur horizontal muni d'un cylindre rotatif, tel que par exemple celui décrit dans GB 1 375 280 . Les cossettes y pénètrent par une première extrémité et se déplacent selon la direction axiale selon un premier sens, tandis que de l'eau, généralement tiède, circule dans la direction axiale du cylindre, selon un second sens, opposé au premier sens. L'entrée d'eau se fait généralement à la seconde extrémité du cylindre, opposée à la première extrémité.To carry out this extraction by diffusion, a horizontal diffuser is generally used provided with a rotary cylinder, such as for example that described in GB 1 375 280 . The chips enter through a first end and move in the axial direction in a first direction, while water, generally warm, flows in the axial direction of the cylinder, in a second direction, opposite the first direction. The water inlet is generally at the second end of the cylinder, opposite the first end.

Au cours de son déplacement axial vers la première extrémité, l'eau s'enrichit du sucre des cossettes, de façon continue. Le jus sucré est alors récupéré à la première extrémité, tandis que les cossettes épuisées en sucre sont évacuées par la seconde extrémité.During its axial displacement towards the first end, the water is enriched with the sugar of the chips, in a continuous way. The sweet juice is then recovered at the first end, while the sugar-depleted chips are evacuated by the second end.

Selon ce procédé de diffusion continue, le cylindre est entrainé en rotation autour de son axe longitudinal qui est horizontal.According to this continuous diffusion process, the cylinder is rotated about its longitudinal axis which is horizontal.

Pour ce faire, le cylindre est pourvu de plusieurs bandages annulaires qui coopèrent avec des rouleaux d'entraînement, appelés galets, actionnés par des moteurs. Généralement, chaque bandage annulaire prend appui sur un rouleau libre (galet libre) et un rouleau d'entraînement (galet d'entrainement) dont la mise en rotation provoque l'entraînement en rotation du cylindre.To do this, the cylinder is provided with several annular tires that cooperate with drive rollers, called rollers, driven by motors. Generally, each annular tire is supported on a free roller (free roller) and a drive roller (drive roller), the rotation of which causes the rotation of the cylinder.

Traditionnellement, les bandages sont réalisés en plusieurs parties afin de permettre leur montage autour de la paroi du cylindre.Traditionally, the bandages are made in several parts to allow their mounting around the cylinder wall.

Une telle configuration nécessite toutefois de positionner précisément les parties du bandage les unes par rapport aux autres afin d'assurer que l'axe du bandage est bien aligné avec celui de cylindre, faute de quoi la mise en rotation du cylindre est susceptible de générer des vibrations pouvant endommager le dispositif d'extraction. Un tel positionnement précis est toutefois délicat et long à mettre en oeuvre.Such a configuration, however, requires precisely positioning the parts of the bandage relative to each other to ensure that the axis of the bandage is aligned with that of the cylinder, otherwise the rotation of the cylinder is likely to generate vibrations that may damage the extraction device. Such precise positioning is however delicate and time consuming to implement.

Objet et résumé de l'inventionObject and summary of the invention

Un but de l'invention est de proposer un bandage annulaire permettant d'éviter les inconvénients précités.An object of the invention is to provide an annular bandage to avoid the aforementioned drawbacks.

Pour ce faire, l'invention porte sur un bandage annulaire d'un cylindre de diffuseur horizontal pour l'extraction de jus à partir de cossettes, le bandage annulaire monobloc ayant un axe principal et s'étendant radialement, selon une hauteur radiale, entre une face périphérique intérieure et une face périphérique extérieure, ledit bandage annulaire monobloc s'étendant axialement, selon une épaisseur axiale, entre une première face latérale annulaire et une seconde face latérale annulaire, le bandage annulaire monobloc étant formé d'une seule pièce et comprenant en outre une pluralité de premiers orifices débouchant dans la première face latérale annulaire ainsi qu'une pluralité de deuxièmes orifices débouchant dans les premiers orifices et dans la face périphérique intérieure, les premier et deuxièmes orifices étant configurés pour recevoir des organes de réglage de la position du bandage annulaire monobloc par rapport au cylindre.To do this, the invention relates to an annular bandage of a horizontal diffuser cylinder for extracting juice from chips, the one-piece annular bandage having a main axis and extending radially, at a radial height, between an inner peripheral face and an outer peripheral face, said one-piece annular tire extending axially, along an axial thickness, between a first annular lateral face and a second annular lateral face, the one-piece annular tire being formed in one piece and comprising furthermore, a plurality of first orifices opening into the first annular lateral face and a plurality of second orifices opening into the first orifices and into the inner peripheral face, the first and second orifices being configured to receive position adjustment members annular bandage monoblock relative to the cylinder.

Le fait que le bandage annulaire soit formé d'une seule pièce, c'est-à-dire monobloc, permet tout d'abord d'éviter le risque lié à un positionnement incorrect entre les différentes parties du bandage, risque que l'on rencontre dans les bandages antérieurs. Ensuite, cela permet de diminuer le temps de montage, le bandage étant simplement enfilé axialement autour du cylindre ou bien préalablement fixé à une virole qui est ensuite solidarisée au cylindre. Le bandage annulaire selon l'invention est également plus robuste grâce à sa structure monobloc.The fact that the annular bandage is formed in one piece, that is to say monobloc, firstly avoids the risk of incorrect positioning between the different parts of the bandage, a risk that encounter in previous bandages. Then, it reduces the assembly time, the bandage is simply driven axially around the cylinder or previously attached to a shell which is then secured to the cylinder. The annular bandage according to the invention is also more robust thanks to its monobloc structure.

Par ailleurs, le montage du bandage sur le cylindre est facilité par le fait que les organes de réglage peuvent être introduits latéralement dans les deuxièmes orifices via les premiers orifices qui débouchent dans la première face latérale annulaire.Furthermore, the mounting of the tire on the cylinder is facilitated by the fact that the adjustment members can be introduced laterally into the second orifices via the first orifices which open into the first annular lateral face.

Les organes de réglage servent à corriger la coaxialité du bandage en alignant l'axe principal du bandage annulaire avec celui du cylindre avant la solidarisation du bandage au cylindre.The adjusting members serve to correct the coaxiality of the tire by aligning the main axis of the annular tire with that of the cylinder before the joining of the tire to the cylinder.

On comprend que les organes de réglage sont positionnés dans les deuxièmes orifices lors de l'opération de réglage. Pour ce faire, les organes de réglage sont tout d'abord introduits dans les premiers orifices avant d'être positionnés dans les deuxièmes orifices. L'agencement des premiers et deuxièmes orifices permet de positionner rapidement les organes de réglage, ce qui contribue également à faciliter les opérations de montage du bandage au cylindre. Après l'opération de réglage, les organes de réglage sont retirés du bandage annulaire. On précise ici que le bandage peut être monté directement sur le cylindre ou bien indirectement via une virole qui est fixée au cylindre.It is understood that the adjustment members are positioned in the second orifices during the adjustment operation. To do this, the adjustment members are first introduced into the first orifices before being positioned in the second orifices. The arrangement of the first and second orifices makes it possible to rapidly position the adjusting members, which also contributes to facilitating the assembly operations of the tire to the cylinder. After the adjusting operation, the adjusting members are removed from the annular bandage. It is specified here that the bandage can be mounted directly on the cylinder or indirectly via a ferrule which is fixed to the cylinder.

Avantageusement, le bandage annulaire comporte également une pluralité de troisièmes orifices, similaire aux premiers orifices mais débouchant dans la seconde face latérale annulaire, et une pluralité de quatrièmes orifices, similaires aux deuxièmes orifices et débouchant dans les troisièmes orifices et dans la face périphérique intérieure. De préférence, les troisièmes et quatrièmes orifices sont symétriques aux premiers et deuxièmes orifices par rapport à un plan médian qui est orthogonal à l'axe principal du bandage annulaire. Les troisièmes et quatrièmes orifices sont également configurés pour recevoir des organes de réglage.Advantageously, the annular tire also has a plurality of third orifices, similar to the first orifices but opening into the second annular lateral face, and a plurality of fourth orifices, similar to the second orifices and opening into the third orifices and into the inner peripheral face. Preferably, the third and fourth orifices are symmetrical to the first and second orifices relative to a median plane which is orthogonal to the main axis of the annular bandage. The third and fourth ports are also configured to receive adjusters.

On précise que les termes « axial », « radial », et « orthoradial » sont définis dans la présente description par rapport à l'axe principale du bandage annulaire. Ce bandage annulaire est préférentiellement réalisé en acier.It is specified that the terms "axial", "radial" and "orthoradial" are defined in the present description with respect to the main axis of the annular bandage. This annular bandage is preferably made of steel.

Avantageusement, les premiers orifices sont des cavités ménagées dans le bandage annulaire, tandis que les deuxièmes orifices sont des trous s'étendant radialement entre la face périphérique intérieure et les cavités.Advantageously, the first orifices are cavities formed in the annular tire, while the second orifices are holes extending radially between the inner peripheral face and the cavities.

Les trous sont dimensionnés pour recevoir les organes de réglage, ces derniers s'étendant radialement pour venir au contact du cylindre. De préférence, les organes de réglage sont des vis vérins dont la tête fait saillie dans les cavités formées par les premiers et troisièmes orifices, ce qui permet un réglage aisé. Ces tiges de vis vérins s'étendent dans les trous formés par les deuxièmes et quatrièmes orifices.The holes are dimensioned to receive the adjusting members, the latter extending radially to come into contact with the cylinder. Preferably, the adjusting members are jackscrews whose head protrudes into the cavities formed by the first and third orifices, which allows easy adjustment. These screw rods cylinders extend into the holes formed by the second and fourth orifices.

De préférence, le bandage selon l'invention présente une partie centrale qui s'étend radialement sur sensiblement la moitié de la hauteur radiale du bandage annulaire depuis la face périphérique intérieure, et ladite partie centrale comprend lesdites cavités.Preferably, the tire according to the invention has a central portion which extends radially over substantially half of the height radial of the annular bandage from the inner peripheral face, and said central portion comprises said cavities.

Autrement dit, les cavités sont disposées dans la partie centrale du bandage annulaire, à proximité du cylindre. Cette configuration permet d'offrir une épaisseur radiale importante de matière entre les cavités et la face périphérique extérieure, ce qui améliore la robustesse du bandage.In other words, the cavities are disposed in the central portion of the annular tire, close to the cylinder. This configuration makes it possible to offer a large radial thickness of material between the cavities and the outer peripheral face, which improves the robustness of the bandage.

De préférence, la profondeur axiale des cavités est inférieure au quart de l'épaisseur axiale. Cette configuration permet de d'offrir une épaisseur axiale importante de matière entre les cavités, ce qui améliore encore la robustesse du bandage.Preferably, the axial depth of the cavities is less than one quarter of the axial thickness. This configuration makes it possible to offer an important axial thickness of material between the cavities, which further improves the robustness of the bandage.

Avantageusement, la longueur des cavités, considérées selon une direction orthoradiale, est au moins égale à 1.5 fois la largeur radiale des cavités. Aussi, les cavités présentent une forme oblongue suffisamment grande pour permettre à l'opérateur de positionner aisément les organes de réglage dans les deuxièmes cavités, ou de les retirer du bandage après l'opération de réglage.Advantageously, the length of the cavities, considered in a orthoradial direction, is at least equal to 1.5 times the radial width of the cavities. Also, the cavities have an oblong shape large enough to allow the operator to easily position the adjustment members in the second cavities, or remove them from the bandage after the setting operation.

De préférence, la largeur radiale des cavités est inférieure à la moitié de la hauteur radiale du bandage annulaire. Les cavités occupent donc un volume sensiblement inférieur à celui du matériau constitutif du bandage, de façon à assurer la robustesse mécanique du bandage.Preferably, the radial width of the cavities is less than half the radial height of the annular bandage. The cavities therefore occupy a volume substantially less than that of the material constituting the bandage, so as to ensure the mechanical strength of the bandage.

Avantageusement, l'épaisseur axiale du bandage annulaire considérée entre deux premiers orifices adjacents, est constante sur sensiblement toute l'épaisseur radiale dudit bandage annulaire. Le bandage selon l'invention est donc massif, ce qui contribue également à sa robustesse.Advantageously, the axial thickness of the annular bandage considered between two first adjacent orifices is constant over substantially the entire radial thickness of said annular bandage. The bandage according to the invention is therefore massive, which also contributes to its robustness.

Préférentiellement, la section droite du bandage annulaire, considérée dans un plan contenant l'axe principal, présente une forme générale au moins quadrangulaire, par exemple rectangulaire ou bien trapézoïdale. Encore avantageusement, la face périphérique intérieure présentant une forme convexe. La forme convexe de la face périphérique intérieure permet de positionner des cales de réglage entre le bandage annulaire et le cylindre.Preferably, the right section of the annular bandage, considered in a plane containing the main axis, has a general shape at least quadrangular, for example rectangular or trapezoidal. Still advantageously, the inner peripheral face having a convex shape. The convex shape of the inner peripheral face makes it possible to position adjusting shims between the annular tire and the cylinder.

Encore de préférence, la face périphérique intérieure convexe comprend au moins deux pans annulaires inclinés l'un par rapport à l'autre. Grâce à cette conformation, la face périphérique intérieure convexe du bandage vient en appui plan sur plan contre les cales de réglage, améliorant ainsi la stabilité du montage.More preferably, the convex inner peripheral face comprises at least two annular faces inclined relative to each other. Thanks to this conformation, the convex inner peripheral face of the bandage comes in plane plane support against the shims of adjustment, thus improving the stability of the assembly.

Selon une mode de réalisation préférentiel, le bandage annulaire monobloc selon l'invention comprend en outre une pluralité de renfoncements, ménagés dans la première face latérale annulaire, les renfoncements étant disposés entre certains des premiers orifices et la face périphérique intérieure.According to a preferred embodiment, the one-piece annular tire according to the invention further comprises a plurality of recesses, formed in the first annular lateral face, the recesses being disposed between some of the first orifices and the inner peripheral face.

Ces renfoncements ont pour fonction de recevoir des organes de blocage qui sont fixés par rapport au cylindre, afin d'immobiliser le bandage par rapport au cylindre. Les renfoncements présentent préférentiellement une longueur orthoradiale qui est inférieure à celle de la cavité.These recesses have the function of receiving locking members which are fixed relative to the cylinder, in order to immobilize the bandage with respect to the cylinder. The recesses preferably have an orthoradial length which is smaller than that of the cavity.

De préférence, les deuxièmes orifices présentent des axes radiaux qui sont disposés axialement entre les première et seconde faces latérales annulaires. Grâce à cette conformation, les organes de montage, considérés selon la direction axiale du bandage annulaire, s'étendent entre les première et seconde faces latérales.Preferably, the second orifices have radial axes which are arranged axially between the first and second annular side faces. With this conformation, the mounting members, considered in the axial direction of the annular tire, extend between the first and second side faces.

Selon un mode de réalisation avantageux, la face périphérique extérieure du bandage annulaire monobloc présente une rugosité Ra, selon la norme ISO 4287, inférieure ou égale à 7 micromètres, de préférence inférieure ou égale à 4 micromètres. Cet état de surface particulier permet un entraînement « doux » en évitant l'apparition de vibrations lors de l'entraînement en rotation du cylindre par les rouleaux.According to an advantageous embodiment, the outer peripheral face of the one-piece annular tire has a roughness Ra, according to ISO 4287, less than or equal to 7 micrometers, preferably less than or equal to 4 micrometers. This particular surface state allows a "soft" drive by avoiding the appearance of vibrations during the drive in rotation of the cylinder by the rollers.

L'invention concerne également un procédé de fabrication d'un bandage annulaire monobloc selon l'invention, dans lequel on moule le bandage annulaire en une seule pièce, les premiers et deuxièmes orifices étant ensuite réalisés par enlèvement de matière après moulage.The invention also relates to a method for manufacturing a one-piece annular bandage according to the invention, in which the annular bandage is molded in one piece, the first and second orifices then being made by removal of material after molding.

Un tel procédé présente l'avantage d'être simple à mettre en oeuvre et permet d'obtenir un bandage monobloc qui soit massif et robuste, et donc présentant une plus longue durée de vie que les bandages traditionnels. En outre, il permet d'obtenir facilement l'état de surface avantageux précité.Such a method has the advantage of being simple to implement and provides a one-piece bandage which is solid and robust, and therefore having a longer life than traditional bandages. In addition, it makes it easy to obtain the aforementioned advantageous surface condition.

L'invention porte également sur un ensemble d'entraînement comportant une virole ayant un premier axe, et un bandage annulaire selon l'invention, ainsi qu'une pluralité de cales, le bandage annulaire étant disposé autour de la virole, les cales étant disposées entre la virole et la face périphérique intérieure du bandage annulaire.The invention also relates to a drive assembly comprising a ferrule having a first axis, and an annular tire according to the invention, and a plurality of wedges, the annular tire being disposed around the ferrule, the wedges being disposed between the ferrule and the inner peripheral face of the annular bandage.

La virole présente une forme cylindrique et est destinée à être fixée au cylindre du diffuseur.The ferrule has a cylindrical shape and is intended to be fixed to the cylinder of the diffuser.

Pour fabriquer l'ensemble d'entraînement, on place la virole de sorte que son premier axe soit vertical. Puis on enfile le bandage annulaire par le haut. Puis on ajuste la coaxialité du bandage annulaire par rapport à la virole, après quoi on place une partie des cales entre la virole et le bandage annulaire. On fixe ensuite le bandage annulaire sur la virole à l'aide d'organes de blocage décrits ci-dessous. On bascule ensuite la virole avec le bandage annulaire de sorte que le premier axe de la virole soit horizontal. On soude ensuite la virole au cylindre avant de vérifier la coaxialité du bandage annulaire par rapport au cylindre. On place ensuite les cales restantes entre le bandage annulaire et la virole, puis on soude les cales à la virole.To manufacture the drive assembly, the ferrule is placed so that its first axis is vertical. Then put the ring bandage on the top. Then the coaxiality of the annular bandage is adjusted relative to the shell, after which a portion of the shims is placed between the shell and the annular bandage. The annular tire is then fixed on the ferrule by means of locking members described below. The ferrule is then tilted with the annular bandage so that the first axis of the ferrule is horizontal. The shell is then welded to the cylinder prior to checking the coaxiality of the annular tire with respect to the cylinder. The remaining wedges are then placed between the annular bandage and the shell, and the shims are welded to the ferrule.

Avantageusement, l'ensemble d'entraînement selon l'invention comporte en outre des organes de réglage, disposés dans les premiers et deuxièmes orifices et configurés pour coopérer avec la surface périphérique de la virole pour permettre le réglage de la coaxialité du premier axe de la virole et de l'axe principal du bandage annulaire monobloc.Advantageously, the drive assembly according to the invention further comprises adjusting members, arranged in the first and second orifices and configured to cooperate with the peripheral surface of the ferrule to allow adjustment of the coaxiality of the first axis of the ferrule and the main axis of the monobloc annular bandage.

L'actionnement des organes de réglage, de préférence mais pas exclusivement constitués par des vis vérins, permet de faire pivoter le bandage annulaire par rapport à virole, ce qui permet d'ajuster rapidement la position de l'axe principal du bandage par rapport à la virole, de sorte que l'axe principal du bandage soit coaxial au premier axe de la virole.The actuation of the adjusting members, preferably but not exclusively constituted by jackscrews, makes it possible to rotate the annular bandage with respect to shell, which makes it possible to quickly adjust the position of the main axis of the bandage with respect to the ferrule, so that the main axis of the bandage is coaxial with the first axis of the ferrule.

Pour solidariser le bandage annulaire monobloc à la virole, l'ensemble d'entraînement comporte en outre, de façon préférentielle, des organes de blocage fixés à la virole et coopérant avec les renfoncements du bandage. Ces organes de blocage présentent préférentiellement la forme de blocs qui sont logés dans les renfoncements avant d'être soudés à la virole. Ces blocs sont préférentiellement réalisés en métal.To secure the one-piece annular tire to the ferrule, the drive assembly further preferably comprises locking members attached to the ferrule and cooperating with the recesses of the tire. These blocking members preferably have the form of blocks which are housed in the recesses before being welded to the ferrule. These blocks are preferably made of metal.

L'invention concerne enfin un diffuseur horizontal pour l'extraction de jus à partir de cossettes, comprenant un cylindre de diffusion ayant un axe longitudinal qui est horizontal, ledit cylindre de diffusion comprenant au moins un ensemble d'entraînement selon l'invention, dans lequel l'axe principal du bandage annulaire, et l'axe longitudinal du cylindre de diffusion sont coaxiaux.Finally, the invention relates to a horizontal diffuser for extracting juice from chips, comprising a diffusion cylinder having a longitudinal axis which is horizontal, said diffusion cylinder comprising at least one drive assembly according to the invention, in which axis of the annular tire, and the longitudinal axis of the diffusion cylinder are coaxial.

La fixation de l'ensemble d'entraînement au cylindre est préférentiellement réalisée par soudage.The attachment of the drive assembly to the cylinder is preferably performed by welding.

On comprend également que l'invention permet de réaliser efficacement et rapidement des opérations de remplacement de parties de cylindres endommagées. Un autre intérêt de l'invention est de pouvoir fabriquer facilement l'ensemble d'entrainement en atelier, contrairement à l'art antérieur qui impose généralement un montage sur site.It is also understood that the invention makes it possible to perform efficiently and quickly operations for replacing damaged cylinder parts. Another advantage of the invention is to be able to easily manufacture the training unit in the workshop, unlike the prior art which generally requires an assembly on site.

Brève description des dessinsBrief description of the drawings

L'invention sera mieux comprise à la lecture de la description qui suit d'un mode de réalisation de l'invention donné à titre d'exemple non limitatif, en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue en perspective partielle d'un diffuseur horizontal selon l'invention comportant un ensemble d'entraînement muni d'un bandage annulaire monobloc conforme à l'invention ;
  • la figure 2 est une vue de face du bandage annulaire monobloc selon l'invention ;
  • la figure 3 est une vue de détail en perspective du bandage de la figure 2 , illustrant un premier orifice ;
  • la figure 4 est une vue de détail de face du bandage de la figure 2 , illustrant une cavité associée à un renfoncement ;
  • la figure 5 est une vue en coupe axiale du bandage de la figure 2 , prise selon la planche coupe V-V montrant la cavité de la figure 4 ;
  • la figure 6 est une vue en coupe du bandage de la figure 5 , prise selon le plan de coupe VI-VI ;
  • la figure 7 est une vue de côté de l'ensemble d'entraînement selon l'invention ;
  • la figure 8 est une vue de face de l'ensemble d'entraînement de la figure 7 ; et
  • les figures 9 à 11 sont des vues en coupe de détail de l'ensemble d'entraînement de la figure 7 , prises selon les plans de coupe IX-IX, X-X et XI-XI.
The invention will be better understood on reading the following description of an embodiment of the invention given by way of non-limiting example, with reference to the appended drawings, in which:
  • the figure 1 is a partial perspective view of a horizontal diffuser according to the invention comprising a drive assembly provided with a one-piece annular bandage according to the invention;
  • the figure 2 is a front view of the one-piece annular bandage according to the invention;
  • the figure 3 is a detailed perspective view of the bandage of the figure 2 Illustrating a first orifice;
  • the figure 4 is a detailed front view of the bandage of the figure 2 Illustrating a cavity associated with a recess;
  • the figure 5 is an axial sectional view of the bandage of the figure 2 , taken according to the VV cutting board showing the cavity of the figure 4 ;
  • the figure 6 is a sectional view of the bandage of the figure 5 , taken along section plane VI-VI;
  • the figure 7 is a side view of the drive assembly according to the invention;
  • the figure 8 is a front view of the training set of the figure 7 ; and
  • the Figures 9 to 11 are detailed sectional views of the training set of the figure 7 , taken according to section plans IX-IX, XX and XI-XI.

Description détaillée de l'inventionDetailed description of the invention

La figure 1 illustre de façon partielle un diffuseur horizontal 10 pour l'extraction de jus sucré à partir de cossettes de racines de betteraves. Le diffuseur horizontal 10 comprend un cylindre de diffusion 12 ayant un axe longitudinal A qui est horizontal. Dans cet exemple, le cylindre présente un diamètre de l'ordre de six mètres, et une longueur d'environ cinquante mètres. Le diffuseur horizontal 10 comporte des moyens d'extraction par diffusion disposés dans le cylindre 12. Ces moyens sont connus par ailleurs et ne seront pas décrits en détail ici. Un exemple de réalisation de tels moyens d'extraction est notamment décrit dans le document GB 1 375 280 .The figure 1 partially illustrates a horizontal diffuser 10 for extracting sweet juice from beet root chips. The horizontal diffuser 10 comprises a diffusion cylinder 12 having a longitudinal axis A which is horizontal. In this example, the cylinder has a diameter of about six meters, and a length of about fifty meters. The horizontal diffuser 10 comprises diffusion extraction means disposed in the cylinder 12. These means are known elsewhere and will not be described in detail here. An exemplary embodiment of such extraction means is described in particular in the document GB 1 375 280 .

Pour sa mise en rotation du cylindre 12 autour de son axe longitudinal A, le diffuseur comporte un ensemble d'entraînement 14, fixé au cylindre 12, et porté par deux rouleaux 16 disposés au sol, à savoir un rouleau libre et un rouleau d'entraînement . Ces rouleaux sont rotatifs autour d'axes de rotation horizontaux, et parallèles à l'axe longitudinal A du cylindre 12. For its rotation of the cylinder 12 about its longitudinal axis A, the diffuser comprises a drive assembly 14, fixed to the cylinder 12, and carried by two rollers 16 disposed on the ground, namely a free roller and a roller. training. These rollers are rotatable about horizontal axes of rotation, and parallel to the longitudinal axis A of the cylinder 12.

L'ensemble d'entraînement 14 comporte une virole 18 qui est fixée autour du cylindre 12. Plus précisément, la virole 18 est soudée au cylindre 12, ce dernier étant emmanché à l'intérieur de la virole 18. The drive assembly 14 comprises a ferrule 18 which is fixed around the cylinder 12. More specifically, the ferrule 18 is welded to the cylinder 12, the latter being fitted inside the ferrule 18.

L'ensemble d'entraînement 14 comporte par ailleurs un bandage annulaire 20, conforme à la présente invention qui est fixé à la virole 18. The drive assembly 14 further comprises an annular bandage 20 according to the present invention which is attached to the ferrule 18.

Comme on le comprend à l'aide de la figure 1 , le bandage annulaire 20 entoure le cylindre 12 et prend appui sur chacun des deux rouleaux 16. La mise en rotation du rouleau d'entrainement provoque l'entraînement en rotation autour de l'axe longitudinal A du bandage annulaire 20 et, par suite, la rotation du cylindre 12. As can be understood by using the figure 1 , the annular tire 20 surrounds the cylinder 12 and bears on each of the two rollers 16. The rotation of the drive roller causes the drive in rotation about the longitudinal axis A of the annular tire 20 and, consequently, the rotation of the cylinder 12.

A l'aide des figures 2 à 6 , on va maintenant décrire plus en détail le bandage annulaire selon l'invention.With the help of Figures 2 to 6 , Will now be described in more detail the annular bandage according to the invention.

Sur la figure 2 , on a illustré le bandage annulaire monobloc 20 en vue de face. Le bandage annulaire 20 présente un axe principal C qui est perpendiculaire au plan de la vue de la figure 2 . On the figure 2 the one-piece annular bandage 20 is illustrated in front view. The annular tire 20 has a main axis C which is perpendicular to the plane of the view of the figure 2 .

Le bandage annulaire 20 s'étend radialement selon une hauteur radiale H entre une face périphérique intérieure 22 et une face périphérique extérieure 24. Dans cet exemple, la hauteur radiale H est de l'ordre de 450 mm.The annular tire 20 extends radially along a radial height H between an inner peripheral face 22 and an outer peripheral face 24. In this example, the radial height H is of the order of 450 mm.

Le bandage annulaire monobloc 20 comporte par ailleurs un diamètre interne D qui est de l'ordre de 6400 mm.The one-piece annular tire 20 also has an internal diameter D which is of the order of 6400 mm.

En se référant aux figures 1 , 3 et 5 , on constate que le bandage annulaire 20 s'étend axialement selon une épaisseur axiale E entre une première face latérale annulaire 26 et une seconde face latérale annulaire 28. Dans cet exemple, l'épaisseur axiale E du bandage annulaire 20 est de l'ordre de 730 mm.Referring to figures 1 , 3 and 5 , It is noted that the annular band 20 extends axially along an axial thickness E between a first annular lateral face 26 and a second annular side face 28. In this example, the axial thickness E of the annular tire 20 is of the order 730 mm.

En se référant à nouveau à la figure 2 , on constate que le bandage annulaire 20 comporte une pluralité de premiers orifices 30. Les premiers orifices 30 constituent des cavités 32 de forme oblongue qui sont ménagées dans le bandage annulaire 20. Comme on le comprend à l'aide des figures 1 , 5, 6 , les premiers orifices 30 débouchent dans la première face latérale annulaire 26. Referring again to the figure 2 , It is noted that the annular band 20 comprises a plurality of first holes 30. The first holes 30 are cavities 32 of oblong shape which are formed in the annular band 20. As can be understood with the aid of figures 1 , 5, 6 , the first orifices 30 open into the first annular lateral face 26.

Dans cet exemple, comme illustré en figure 2 , le bandage annulaire 20 comporte seize premiers orifices 30 qui sont répartis angulairement de façon régulière selon la circonférence du bandage. Bien évidemment, sans sortir du cadre de la présente invention, le bandage annulaire 20 pourrait comprendre un nombre différent de premiers orifices 30. In this example, as illustrated in figure 2 , the annular tire 20 has sixteen first orifices 30 which are angularly distributed regularly along the circumference of the bandage. Of course, without departing from the scope of the present invention, the annular band 20 could comprise a different number of first orifices 30.

Comme mentionné précédemment, les premiers orifices constituent des cavités 32. Ces cavités 32 sont disposées dans une partie centrale 20a du bandage annulaire 20, cette partie centrale 20a s'étendant radialement sur sensiblement la moitié de la hauteur radiale H du bandage annulaire monobloc 20 depuis la face périphérique intérieure 22 vers la face périphérique extérieure 24. As mentioned above, the first orifices constitute cavities 32. These cavities 32 are disposed in a central portion 20a of the annular tire 20, this central portion 20a extending radially on substantially half the radial height H of the one-piece annular tire 20 since the inner peripheral face 22 towards the outer peripheral face 24.

Par ailleurs, comme illustré notamment en figures 5 et 6 , la profondeur axiale P des cavités 32 est inférieure au quart de l'épaisseur axiale E. Moreover, as illustrated in particular Figures 5 and 6 , the axial depth P of the cavities 32 is less than a quarter of the axial thickness E.

Par ailleurs, les cavités 32 présentent une longueur L -considérée selon une direction orthoradiale- ainsi qu'une largeur radiale ℓ. La longueur L des cavités 32 est, dans cet exemple, sensiblement égale à 15 fois la largeur radiale ℓ desdites cavités 32. Moreover, the cavities 32 have a length L - considered in a orthoradial direction - as well as a radial width ℓ. The length L of the cavities 32 is, in this example, substantially equal to 15 times the radial width ℓ of said cavities 32.

On note par ailleurs que la largeur radiale ℓ des cavités est inférieure à la moitié de la hauteur radiale H du bandage annulaire.It should also be noted that the radial width ℓ of the cavities is less than half the radial height H of the annular tire.

A l'aide de la figure 3 , on constate que la hauteur axiale H du bandage annulaire monobloc 20, considéré entre deux premiers orifices adjacents 30, est sensiblement constante sur toute l'épaisseur radiale E du bandage annulaire monobloc 20. On note par ailleurs que les première et seconde faces latérales annulaires 26,28 sont sensiblement parallèles l'une à l'autre.Using the figure 3 , It is noted that the axial height H of the monoblock annular tire 20, seen between two adjacent first orifices 30 is substantially constant over the radial thickness E piece annular bandage 20. It is also noted that the first and second annular side surfaces 26,28 are substantially parallel to each other.

Dans cet exemple, le bandage annulaire monobloc 20 comporte par ailleurs une pluralité de troisièmes orifices 30', constituant des cavités 32' qui débouchent dans la seconde face latérale annulaire 28. Plus précisément dans cet exemple, les premier et troisième orifices 30,30' sont symétriques par rapport à un plan Q qui est orthogonal à l'axe principal C du bandage annulaire monobloc.In this example, the one-piece annular tire 20 also comprises a plurality of third orifices 30 ' constituting cavities 32' which open into the second annular lateral face 28. More specifically in this example, the first and third orifices 30, 30 ' are symmetrical about a plane Q which is orthogonal to the main axis C of the one-piece annular tire.

En se référant à la figure 5 , on constate que la section droite du bandage annulaire monobloc 20, considérée dans un plan R contenant l'axe principal C, présente une forme générale quadrangulaire, dans cet exemple sensiblement rectangulaire, étant précisé que la face périphérique intérieure 22 présente une forme convexe.Referring to the figure 5 it is found that the cross-section of the annular one-piece band 20, considered in a plane R containing the main axis C, has a quadrangular general shape, in this example substantially rectangular, it being specified that the inner peripheral face 22 has a convex shape.

Dans l'exemple de la figure 5 , la face périphérique intérieure convexe comprend trois pans annulaires 40,42,44 qui sont inclinés les uns par rapport aux autres. Plus précisément, la face périphérique intérieure 22 comprend un premier pan annulaire 40, qui est incliné par rapport à l'axe principal C, en s'ouvrant vers la première face latérale annulaire, un deuxième pan annulaire 42 qui est parallèle à l'axe principal C, et un troisième pan annulaire 44 qui est incliné par rapport à l'axe principal C, en s'ouvrant vers la seconde face latérale circulaire. Le deuxième pan annulaire 42 est disposé entre les premier et troisième pans annulaires 40,44. L'intérêt de cette configuration sera explicité ci-dessous.In the example of the figure 5 , the convex inner peripheral face comprises three annular flaps 40, 42, 44 which are inclined relative to each other. More specifically, the inner peripheral face 22 comprises a first annular flange 40, which is inclined relative to the main axis C, opening towards the first annular lateral face, a second annular flange 42 which is parallel to the axis main C, and a third annular pan 44 which is inclined relative to the main axis C, opening towards the second circular side face. The second annular flange 42 is disposed between the first and third annular flaps 40,44. The interest of this configuration will be explained below.

Le bandage annulaire monobloc 20 comprend en outre une pluralité de premiers renfoncements 50 qui sont ménagés dans la première face latérale annulaire 26. Ces renfoncements débouchent dans la première face latérale annulaire 26. Lesdits renfoncements 50 sont disposés radialement entre certains des premiers orifices et la face périphérique intérieure 22. The one-piece annular tire 20 further comprises a plurality of first recesses 50 which are formed in the first annular lateral face 26. These recesses open into the first annular lateral face 26. Said recesses 50 are arranged radially between some of the first orifices and the face inner ring 22.

Comme on le constate sur la figure 6 , la longueur orthoradiale R des premiers renfoncements 50 correspondant à environ un tiers de la longueur orthoradiale L des cavités 32. As we see on the figure 6 , the orthoradial length R of the first recesses 50 corresponding to about one third of the orthoradial length L of the cavities 32.

En se référant à la figure 2 , on constate que le bandage annulaire monobloc 20 comporte huit renfoncements 50 débouchant dans la première face latérale annulaire 26. Plus précisément, une cavité 30 sur deux est associée à un renfoncement 50. Le bandage annulaire comporte en outre des seconds renforcements 50', symétriques aux premiers renforcements par rapport au plan Q. Referring to the figure 2 it is found that the one-piece annular tire 20 has eight recesses 50 opening into the first annular lateral face 26. More precisely, a cavity 30 on two is associated with a recess 50. The annular bandage further comprises second reinforcements 50 ', symmetrical to the first reinforcements relative to the plane Q.

L'intérêt des renfoncements 50 et 50' sera détaillé ci-dessous.The interest of the recesses 50 and 50 ' will be detailed below.

Le bandage annulaire 20 comporte par ailleurs une pluralité de deuxièmes orifices 60 qui débouchent dans les premiers orifices 30 et dans la face périphérique intérieure 22. Ces deuxièmes orifices 60 sont mieux visibles sur les figures 3 à 6 . The annular tire 20 also has a plurality of second orifices 60 which open into the first orifices 30 and into the inner peripheral face 22. These second orifices 60 are better visible on the Figures 3 to 6 .

Conformément à l'invention, les premiers et deuxièmes orifices 30,60 sont configurés pour recevoir des organes de réglage 70 de la position du bandage annulaire par rapport au cylindre. Ces organes de réglage 70 seront décrits plus en détail ci-dessous.According to the invention, the first and second orifices 30, 60 are configured to receive adjusting members 70 of the position of the annular tire with respect to the cylinder. These adjustment members 70 will be described in more detail below.

On constate que les deuxièmes orifices 60 sont des trous 62 qui s'étendent radialement entre la face périphérique intérieure 22 et les cavités 32. It can be seen that the second orifices 60 are holes 62 which extend radially between the inner peripheral face 22 and the cavities 32.

On constate également que le bandage annulaire 20 comporte une pluralité de quatrièmes orifices 60' constituant des trous 62', qui sont symétriques aux deuxièmes orifices 60 par rapport au plan Q précité.It is also noted that the annular tire 20 has a plurality of fourth holes 60 ' forming holes 62', which are symmetrical to the second orifices 60 with respect to the above-mentioned plane Q.

Dans cet exemple non limitatif, les trous 62,62' présentent un diamètre de l'ordre de 35 mm et s'étendent radialement selon environ 80 mm.In this nonlimiting example, the holes 62 , 62 ' have a diameter of the order of 35 mm and extend radially about 80 mm.

En se référant à la figure 6 , on constate que les trous 62 présentent des axes radiaux Y qui sont disposés axialement entre les première et seconde faces latérales annulaires 26,28. Referring to the figure 6 it is found that the holes 62 have radial axes Y which are arranged axially between the first and second annular side faces 26,28.

En se référant à nouveau à la figure 2 , on note que le bandage annulaire 20 comprend également des perçages 17 permettant de saisir et déplacer le bandage lors de son montage à la virole.Referring again to the figure 2 , it is noted that the annular bandage 20 also includes holes 17 for gripping and moving the bandage during its assembly to the ferrule.

Par ailleurs, la face périphérique extérieure 24 du bandage annulaire monobloc 20 présente une rugosité Ra selon la norme ISO 4287 qui, dans cet exemple, est égale à 3.2 µm.Moreover, the outer peripheral face 24 of the one-piece annular tire 20 has a roughness Ra according to the ISO 4287 standard which, in this example, is equal to 3.2 μm.

En se référant à la figure 1 , on comprend que la face périphérique extérieure 24 est en contact avec les rouleaux 16. Referring to the figure 1 it is understood that the outer peripheral face 24 is in contact with the rollers 16.

Conformément à l'invention, le bandage annulaire est en une seule pièce. Il s'agit donc d'un bandage annulaire monobloc. Pour ce faire, on moule le bandage annulaire en une seule pièce. Les premier et deuxième orifices 30,60 ainsi que les troisième et quatrième orifices 30',60' sont ensuite réalisés par enlèvement de matière après moulage. On comprend également que les premiers et deuxièmes renfoncements 50, 50' sont réalisés par enlèvement de matière après moulage.According to the invention, the annular bandage is in one piece. It is therefore a monoblock ring bandage. To do this, the annular bandage is molded in one piece. The first and second ports 30,60 and the third and fourth ports 30 ', 60' are then made by removal of material after molding. It is also understood that the first and second recesses 50, 50 ' are made by removal of material after molding.

A l'aide des figures 7 à 11 , on constate que l"ensemble d'entraînement 14 comporte par ailleurs une pluralité de premières cales 80 et de deuxièmes cales 82, visibles notamment sur les figures 7,8 , 10 et 11 , qui sont disposées entre la virole 18 et la face périphérique intérieure 22 du bandage annulaire. Les premières et deuxièmes cales sont disposées entre la virole et la face périphérique intérieure du bandage annulaire monobloc. Après avoir enfilé le bandage annulaire autour de la virole en position verticale, une partie des premières et deuxièmes cales est montée à force afin de bloquer le bandage par rapport à la virole. Plus exactement, certaines des premières et deuxièmes cales 80,82 sont disposées entre la surface périphérique extérieure 18a de la virole 18 et les premier et troisième pans annulaires 40. With the help of Figures 7 to 11 It is found that the "drive assembly 14 further comprises a plurality of first spacers 80 and second wedges 82, visible in particular on figures 7.8 , 10 and 11 , which are arranged between the ferrule 18 and the inner peripheral face 22 of the annular bandage. The first and second shims are arranged between the ferrule and the inner peripheral face of the monoblock annular bandage. After putting the annular bandage around the ferrule upright, a portion of the first and second wedges is mounted to force to block the bandage relative to the ferrule. More exactly, some of the first and second wedges 80, 82 are disposed between the outer peripheral surface 18a of the ferrule 18 and the first and third annular flaps 40.

Comme expliqué ci-dessus, l'ensemble d'entraînement comporte en outre des organes de réglage 70,70', visibles sur la figure 11 , constitués dans cet exemple par des vis vérins, qui s'étendent dans les trous 62,62' et qui sont configurés pour prendre appui sur la surface périphérique 18a de la virole 18. L'actionnement des vis vérins a pour effet de déplacer le bandage annulaire 20 par rapport à la virole 18 afin de régler la coaxialité de l'axe principal C du bandage annulaire 20 par rapport à l'axe de la virole.As explained above, the drive assembly further comprises adjusting members 70, 70 ' visible on the figure 11 , constituted in this example by jackscrews, which extend into the holes 62, 62 ' and which are configured to bear on the peripheral surface 18a of the shell 18. The actuation of the jackscrews has the effect of displacing the annular tire 20 relative to the ferrule 18 in order to adjust the coaxiality of the main axis C of the annular tire 20 relative to the axis of the ferrule.

L'ensemble d'entraînement comporte en outre des organes de blocage 90,92, visibles sur la figure 9 , et présentant la forme de blocs, qui sont soudés à la virole et qui coopèrent avec les renfoncements 50,50' pour maintenir le bandage annulaire monobloc 20 par rapport à la virole 18. The drive assembly further comprises locking members 90, 92 visible on the figure 9 , and having the form of blocks, which are welded to the ferrule and cooperate with the recesses 50,50 ' to maintain the annular bandage 20 relative to the ferrule 18.

La virole est ensuite pivotée de sorte que son premier axe soit horizontal. La virole est ensuite soudée au cylindre. Les premières et deuxièmes cales 80,82 restantes sont ensuite disposées entre le troisième pan 44 de la virole et le bandage annulaire. Après s'être assuré de la coaxialité de l'axe du bandage annulaire avec l'axe du cylindre, on soude les premières et deuxièmes cales à la virole. On retire enfin les vis vérins.The shell is then rotated so that its first axis is horizontal. The shell is then welded to the cylinder. The first and second 80,82 remaining wedges are then disposed between the third pan 44 of the shell and the annular bandage. After ensuring the coaxiality of the axis of the annular bandage with the axis of the cylinder, it welds the first and second wedges to the shell. Finally, the jackscrews are removed.

Claims (17)

Bandage annulaire (20) d'un cylindre (12) de diffuseur horizontal (10) pour l'extraction de jus à partir de cossettes, le bandage annulaire monobloc ayant un axe principal (C) et s'étendant radialement, selon une hauteur radiale (H), entre une face périphérique intérieure (22) et une face périphérique extérieure (24), ledit bandage annulaire s'étendant axialement, selon une épaisseur axiale (E), entre une première face latérale annulaire (26) et une seconde face latérale annulaire (28), le bandage annulaire étant formé d'une seule pièce et comprenant en outre une pluralité de premiers orifices (30) débouchant dans la première face latérale annulaire ainsi qu'une pluralité de deuxièmes orifices (60) débouchant dans les premiers orifices (30) et dans la face périphérique intérieure (22), les premiers et deuxièmes orifices (30, 60) étant configurés pour recevoir des organes de réglage (70) de la position du bandage annulaire par rapport au cylindre.Annular tire (20) of a horizontal diffuser cylinder (12) (10) for extracting juice from chips, the integral annular tire having a main axis (C) and extending radially at a radial height (H), between an inner peripheral face (22) and an outer peripheral face (24), said annular tire extending axially, according to an axial thickness (E), between a first annular lateral face (26) and a second face annular sidewall (28), the annular bandage being formed integrally and further comprising a plurality of first orifices (30) opening into the first annular side face and a plurality of second orifices (60) opening into the first orifices (30) and in the inner peripheral face (22), the first and second orifices (30, 60) being configured to receive adjusting members (70) of the position of the annular tire with respect to the cylinder. Bandage annulaire selon la revendication 1, dans lequel les premiers orifices (30) sont des cavités (32) ménagées dans le bandage annulaire, tandis que les deuxièmes orifices (60) sont des trous s'étendant radialement entre la face périphérique intérieure (22) et les cavités (32).An annular tire according to claim 1, wherein the first orifices (30) are cavities (32) in the annular tire, while the second orifices (60) are holes extending radially between the inner peripheral face (22). and the cavities (32). Bandage annulaire selon la revendication 2, caractérisé en ce qu'il présente une partie centrale (20a) qui s'étend radialement sur sensiblement la moitié de la hauteur radiale (H) du bandage annulaire monobloc (20) depuis la face périphérique intérieure (22), et en ce que ladite partie centrale (20a) comprend lesdites cavités (32).Annular tire according to claim 2, characterized in that it has a central portion (20a) which extends radially on substantially half of the radial height (H) of the one-piece annular tire (20) from the inner peripheral face (22). ), and in that said central portion (20a) comprises said cavities (32). Bandage annulaire selon l'une quelconque des revendications 2 et 3, dans lequel la profondeur axiale (P) des cavités (32) est inférieure au quart de l'épaisseur axiale (E).An annular tire according to any of claims 2 and 3, wherein the axial depth (P) of the cavities (32) is less than one quarter of the axial thickness (E). Bandage annulaire selon l'une quelconque des revendications 2 à 4, dans lequel la longueur (L) des cavités (32), considérées selon une direction orthoradiale, est au moins égale à 1.5 fois la largeur radiale (ℓ) des cavités.An annular bandage according to any one of claims 2 to 4, wherein the length (L) of the cavities (32), considered in a orthoradial direction, is at least 1.5 times the radial width (ℓ) of the cavities. Bandage annulaire selon l'une quelconque des revendications 3 à 5, dans lequel la largeur radiale (ℓ) des cavités est inférieure à la moitié de la hauteur radiale (H) du bandage annulaire.An annular tire according to any one of claims 3 to 5, wherein the radial width (ℓ) of the cavities is less than half the radial height (H) of the annular tire. Bandage annulaire selon l'une quelconque des revendications précédentes, dans lequel l'épaisseur axiale (E) du bandage annulaire (20), considérée entre deux premiers orifices adjacents (30), est constante sur sensiblement toute la hauteur radiale (E) dudit bandage annulaire.An annular tire according to any one of the preceding claims, wherein the axial thickness (E) of the annular tire (20) considered between two first adjacent orifices (30) is constant over substantially the entire radial height (E) of said tire. annular. Bandage annulaire selon l'une quelconque des revendications précédentes, dans lequel la section droite du bandage annulaire (20), considérée dans un plan (R) contenant l'axe principal (C), présente une forme générale au moins quadrangulaire, la face périphérique intérieure (22) présentant une forme convexe.Annular tire according to any one of the preceding claims, wherein the straight section of the annular tire (20), considered in a plane (R) containing the main axis (C), has a generally quadrangular general shape, the peripheral face interior (22) having a convex shape. Bandage annulaire selon la revendication 8, dans lequel la face périphérique intérieure (22) convexe comprend au moins deux pans annulaires (40,42,44) inclinés l'un par rapport à l'autre.An annular tire according to claim 8, wherein the convex inner peripheral face (22) comprises at least two annular flaps (40,42,44) inclined relative to one another. Bandage annulaire selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre une pluralité de renfoncements (50), ménagés dans la première face latérale annulaire (26), les renfoncements (50) étant disposés entre certains des premiers orifices et la face périphérique intérieure (22).An annular bandage according to any one of the preceding claims, characterized in that it further comprises a plurality of recesses (50) formed in the first annular side face (26), the recesses (50) being disposed between some of the first orifices and the inner peripheral face (22). Bandage annulaire selon l'une quelconque des revendications précédentes, dans lequel les deuxièmes orifices (60) présentent des axes radiaux (Y) qui sont disposés axialement entre les première et seconde faces latérales annulaires (26,28).An annular tire according to any one of the preceding claims, wherein the second orifices (60) have radial axes (Y) which are axially disposed between the first and second annular side faces (26, 28). Bandage annulaire selon l'une quelconque des revendications précédentes, dans lequel la face périphérique extérieure (24) du bandage annulaire (20) présente une rugosité Ra, selon la norme ISO 4287, inférieure ou égale à 7 micromètres, de préférence inférieure ou égale à 4 micromètres.Annular tire according to any one of the preceding claims, wherein the outer peripheral face (24) of the annular tire (20) has a roughness Ra, according to ISO 4287, less than or equal to 7 micrometers, preferably less than or equal to 4 micrometers. Procédé de fabrication d'un bandage annulaire monobloc selon l'une quelconque des revendications précédentes, dans lequel on moule le bandage annulaire en une seule pièce, les premiers et deuxièmes orifices (30,60) étant ensuite réalisés par enlèvement de matière après moulage.A method of manufacturing a one-piece annular tire according to any one of the preceding claims, wherein the annular tire is molded in one piece, the first and second orifices (30, 60) then being made by removal of material after molding. Ensemble d'entraînement (14) comportant une virole (18) ayant un premier axe (B), et un bandage annulaire (20) selon l'une quelconque des revendications 1 à 12, ainsi qu'une pluralité de cales (80,82), caractérisé en ce que le bandage annulaire (20) est disposé autour de la virole (18), les cales étant disposées entre la virole (1e) et la face périphérique intérieure (22) du bandage annulaire .A drive assembly (14) having a ferrule (18) having a first axis (B), and an annular tire (20) according to any one of claims 1 to 12, and a plurality of shims (80,82 ), characterized in that the annular bandage (20) is arranged around the ferrule (18), the shims being arranged between the ferrule (1e) and the inner peripheral face (22) of the annular bandage. Ensemble d'entraînement selon la revendication 14, caractérisé en ce qu'il comporte en outre des organes de réglage (70), disposés dans les premiers et deuxièmes orifices (60) et configurés pour coopérer avec la surface périphérique (18a) de la virole (18) pour permettre le réglage de la coaxialité du premier axe (B) de la virole et de l'axe principal (C) du bandage annulaire (20).Drive assembly according to claim 14, characterized in that it further comprises adjusting members (70) arranged in the first and second orifices (60) and configured to cooperate with the peripheral surface (18a) of the ferrule (18) for adjusting the coaxiality of the first axis (B) of the ferrule and the main axis (C) of the annular bandage (20). Ensemble d'entraînement selon la revendication 10 et l'une ou l'autre des revendications 14 et 15, caractérisé en ce qu'il comporte en outre des organes de blocage (90,92) fixés à la virole et coopérant avec les renfoncements (50,50') pour immobiliser le bandage annulaire par rapport à la virole.Drive assembly according to Claim 10 and either of Claims 14 and 15, characterized in that it further comprises locking members (90, 92) fixed to the collar and cooperating with the recesses ( 50, 50 ') to immobilize the annular bandage with respect to the ferrule. Diffuseur horizontal (10) pour l'extraction de jus à partir de cossettes, comprenant un cylindre de diffusion (12) ayant un axe longitudinal (A) qui est horizontal, ledit cylindre de diffusion comprenant au moins un ensemble d'entraînement selon l'une quelconque des revendications 14 à 16, caractérisé en ce que l'axe principal du bandage annulaire et l'axe longitudinal du cylindre de diffusion sont coaxiaux.Horizontal diffuser (10) for extracting juice from chips, comprising a diffusion cylinder (12) having a longitudinal axis (A) which is horizontal, said diffusion cylinder comprising at least one drive assembly according to any one of claims 14 to 16, characterized in that the main axis of the annular tire and the longitudinal axis of the diffusion cylinder are coaxial.
EP17190764.5A 2016-09-21 2017-09-13 Integral annular strip for diffuser Withdrawn EP3299479A1 (en)

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FR1658861A FR3056228B1 (en) 2016-09-21 2016-09-21 MONOBLOC ANNULAR BANDAGE FOR DIFFUSER

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US952224A (en) * 1907-04-12 1910-03-15 David Robert Yarnall Inclined rotary digester and extractor.
US1248560A (en) * 1916-03-27 1917-12-04 Kilby Mfg Company Percolator.
US1317372A (en) * 1919-09-30 Assiotor to staztoarb oil
US1353463A (en) * 1919-08-27 1920-09-21 Guy S Dyer Leaching-machine
US2466259A (en) * 1945-06-26 1949-04-05 Morton Whipple Vincent Continuous diffusion unit
FR1178551A (en) * 1957-01-29 1959-05-12 Raffinerie Tirlemontoise Sa Apparatus for bringing solids and fluids into contact, in particular for the extraction of sugar by diffusion
FR2074890A5 (en) * 1970-01-21 1971-10-08 Engineers Cf Et I Inc
FR2289218A1 (en) * 1974-10-23 1976-05-28 Reunis Sa Ateliers Sol. matl. extn. from solids, e.g. for sugar beet - by countercurrent contact with liq. in compartmented rotating drum
FR2320771A1 (en) * 1975-08-11 1977-03-11 Alkaloida Vegyeszeti Gyar METHOD AND DEVICE FOR COMBINING SENSITIVELY FLUID PARTICULAR SUBSTANCES WITH SOLID, LIQUID OR GASEOUS SUBSTANCES
GB2050187A (en) * 1979-05-21 1981-01-07 Escher Wyss Gmbh Screening device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1317372A (en) * 1919-09-30 Assiotor to staztoarb oil
US952224A (en) * 1907-04-12 1910-03-15 David Robert Yarnall Inclined rotary digester and extractor.
US1248560A (en) * 1916-03-27 1917-12-04 Kilby Mfg Company Percolator.
US1353463A (en) * 1919-08-27 1920-09-21 Guy S Dyer Leaching-machine
US2466259A (en) * 1945-06-26 1949-04-05 Morton Whipple Vincent Continuous diffusion unit
FR1178551A (en) * 1957-01-29 1959-05-12 Raffinerie Tirlemontoise Sa Apparatus for bringing solids and fluids into contact, in particular for the extraction of sugar by diffusion
FR2074890A5 (en) * 1970-01-21 1971-10-08 Engineers Cf Et I Inc
FR2289218A1 (en) * 1974-10-23 1976-05-28 Reunis Sa Ateliers Sol. matl. extn. from solids, e.g. for sugar beet - by countercurrent contact with liq. in compartmented rotating drum
FR2320771A1 (en) * 1975-08-11 1977-03-11 Alkaloida Vegyeszeti Gyar METHOD AND DEVICE FOR COMBINING SENSITIVELY FLUID PARTICULAR SUBSTANCES WITH SOLID, LIQUID OR GASEOUS SUBSTANCES
GB2050187A (en) * 1979-05-21 1981-01-07 Escher Wyss Gmbh Screening device

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BE1024594A1 (en) 2018-04-16
BE1024594B1 (en) 2018-04-25
FR3056228A1 (en) 2018-03-23
FR3056228B1 (en) 2018-10-05

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