(19)
(11)EP 1 707 270 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
10.02.2010 Bulletin 2010/06

(21)Application number: 05013416.2

(22)Date of filing:  22.06.2005
(51)International Patent Classification (IPC): 
B02C 18/00(2006.01)
B02C 18/18(2006.01)
B02C 18/22(2006.01)
B02C 23/16(2006.01)

(54)

Unit for grinding organic material

Zerkleinerungsanlage für organische Abfälle

Unité pour le broyage de déchets organiques


(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30)Priority: 29.03.2005 IT PI20050033

(43)Date of publication of application:
04.10.2006 Bulletin 2006/40

(73)Proprietor: ATOP S.p.A.
50021 Barberino Val d'Elsa (Firenze) (IT)

(72)Inventors:
  • Santandrea, Marco
    50021 Barberino Val D'elsa (FI) (IT)
  • Lombardi, Massimo
    55020 San Donato In Poggio (FI) (IT)

(74)Representative: Celestino, Marco 
ABM Agenzia Brevetti & Marchi, Viale Giovanni Pisano, 31
56123 Pisa
56123 Pisa (IT)


(56)References cited: : 
EP-A- 0 420 731
DE-A1- 10 250 886
US-A- 5 127 587
EP-A- 1 048 357
US-A- 3 823 879
US-A- 5 971 303
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    Field of the invention



    [0001] The present invention relates to an organic waste treatment unit for waste of many kinds, such as vegetables, fruit, and other food of various type, which carries out a fine fragmentation of the waste before disposal and subsequent collection by a public disposal centre, in order to reduce the volume of the waste, to limit the generation of bacteria in the ground waste, to reduce its environmental impact, and then to be of practical use for a separate waste collection.

    Description of the prior art



    [0002] As well known, organic waste cannot be left for a long time in common bins for household use suited for separate waste collection, because it is bulky and can produce bad smell for the action of bacteria. Therefore, to limit these problems, organic waste should be processed in suitable machines for reducing its size and limiting the action of bacteria.

    [0003] Machines for treatment of organic waste exist that grind the material before disposal and collection by a public disposal centre, so that the waste has a low environmental impact. However, the existing machines cannot make an effective fragmentation of the organic waste and cannot avoid that the ground waste has still a high level of humidity, which enhances multiplication of bacteria in the mass of waste.

    [0004] Furthermore, the known machines for waste treatment have a complex grinding unit. A problem of existing grinding units is that they have a cutting mechanism that during operation is subject to jam owing to particularly resistant bodies; in this case, if the machine is not stopped promptly, the cutting mechanism could be damaged.

    [0005] Other prior machines like those of US 3,823,879 provide that ground solid waste is separated from the liquid part in separating devices that are required to collect the ground solid waste for disposal. This requires that the separating devices be conceived also for collecting the ground waste and that the user has to disassemble the separating devices for extracting the ground solid waste

    Summary of the invention



    [0006] It is therefore a feature of the invention to provide an organic waste treatment unit that achieves the above described objects, and furthermore, carries out a much more effective grinding of the waste material with respect to the devices of prior art.

    [0007] It is another feature of the invention to provide an organic waste treatment unit that is structurally easy and cheap with respect to apparatus of prior art.

    [0008] It is a further feature of the invention to provide a grinding unit that can be integrated in a modular element for kitchen units for separate waste collection.

    [0009] These and other features are accomplished with one exemplary organic waste treatment unit according to claim 1.

    [0010] Advantageously, the grinding means comprise at least one knife rotating about an axis suitable for cooperating with a stationary knife connected to the wall of the grinding chamber, in order to grind the waste coming from said inlet.

    [0011] Preferably, the knives have a curved profile suitable to assist the outflow of a washing liquid downstream of said grinding chamber.

    [0012] In an exemplary embodiment of the invention, the or each knife is mounted on the boundary of a rotating drum.

    [0013] Advantageously, knives are arranged in rows longitudinally to the drum. In particular, the knives of the different longitudinal rows can be arranged radially on the drum. Alternatively, the knives of the different longitudinal rows can be shifted in the many transversal planes of the drum.

    [0014] In particular, said grinding means can be operated by motor means associated to a control circuit that in determined operative conditions operates inversion of the speed of rotation of the grinding means up to a determined angular position, for then causing another inversion of the speed of rotation up to cutting again the waste. This step can be repeated a predetermined number of times. This avoids jamming problems to the machine due to the presence of waste, or parts of waste, particularly resistant to the cutting action operated by the grinding means.

    [0015] Advantageously, the control circuit measures the electrical power absorption of the motor and operates the inversion of speed of rotation of the grinding means when a measured value of said power absorption is different from a predetermined value.

    [0016] Advantageously, the flow sorting means of the waste comprises:
    • a sieve, arranged between the inlet and the waste grinding chamber, movable between a first position, where it allows the passage of only liquid residues percolating from the waste, and a second position, where it allows the passage also of the waste same, said sieve being operatively connected to
    • a control valve arranged downstream of the grinding chamber, suitable for preventing from/allowing the access of the waste towards the waste collecting container even if allowing the percolation of liquid residues.


    [0017] In particular, the control valve provides:
    • a pierced diaphragm that when the sieve is at said first position faces the grinding chamber to allow the outflow of the liquid waste keeping the waste solid fraction, whereas at the second position it faces the outlet,
    • a dividing wall substantially parallel to the pierced diaphragm, suitable for blocking an access towards said waste collecting container when the sieve is at said first position and to allow an access towards said waste collecting container when the sieve is at said second position.


    [0018] In particular, the control valve is operated by motor means mounted on a frame of the waste treatment unit.

    [0019] Advantageously, between the inlet and the grinding chamber means are provided for feeding a disinfecting solution suitable for preventing fermentation of the ground organic waste.

    [0020] Furthermore, washing means can be provided suitable for sending a certain amount of water in the unit for removing any residues from the grinding means and from the inner walls of the unit same at the end of a cycle of operation.

    [0021] Advantageously, the grinding chamber and the control valve are enclosed in a carter of protection, which can be released by the user after stopping the motor means. This way, the motor means can be reached by the user, who can thus carry out an inversion of the speed to release possible objects that, during operation, have reached the moving parts in the unit, in particular the grinding means, causing it to jam.

    [0022] In particular, the inlet has side walls of flexible material suitable to assist the introduction of waste in the grinding unit.

    [0023] According to another aspect of the invention, a modular element for kitchen units comprises a grinding unit as above described, said modular element comprising a piece of furniture having a height, depth and width of standard size for kitchen units.

    Brief description of the drawings



    [0024] The invention will now shown with the following description of an exemplary embodiment thereof, exemplifying but not limitative, with reference to the attached drawings wherein:
    • figures from 1 to 4 show diagrammatically a possible succession of steps of a cycle of operation of an organic waste treatment unit, according to the invention;
    • figure 5 shows in detail a cross sectional view of a grinding chamber of the unit of figures 1-4;
    • figure 6 shows diagrammatically the flow sorting means of organic waste of the unit of figures 1-4;
    • figures from 7A to 8 show diagrammatically an elevational side elevational front view of a carter of protection of the grinding chamber and of a control valve in a blocking position and in the position allowing an access to inner mechanical parts;
    • figure 9 shows diagrammatically a perspective view of the grinding unit of figure 1 integrated in an element for kitchen units;
    • figure 10 shows graphically a qualitative diagram of angular speed (V) versus time (t) of the knives of the unit of figure 1 during a possible clearing procedure of the machine.

    Description of a preferred exemplary embodiment



    [0025] With reference to figures from 1 to 4, a possible succession of steps of a working cycle in an organic waste treatment unit 1 begins with the introduction of the waste through an inlet 5 (figure 1).

    [0026] Normally a ground organic waste has a liquid fraction and a solid fraction. Therefore, for reducing the volume of the waste to dispose of, in order to be easily collected by a public disposal centre, and for avoiding conditions favourable to the multiplication of bacteria, in the first step of the organic waste treatment process a relevant portion of the waste liquid fraction is separated from the solid fraction. This step is made through waste sorting means 20, 21 and 30, shown in detail in figure 6.

    [0027] In particular, the waste sorting means 20, 21 and 30 comprise a sieve 21 movable between a first position, where it allows the passage of only the waste liquid fraction (figures 1 and 2), and a second position, where it allows the passage also of the waste solid fraction (figures 3 and 4). The sieve 21 is operatively connected by a rod 20 to a control valve 30, which is arranged downstream of a grinding chamber 10, in order to synchronize its movements.

    [0028] More in detail, the valve 30 has a diaphragm 31 having holes 32 and a dividing wall 33 parallel to the diaphragm (figure 6). At the first position of the sieve 21, valve 30 with the pierced diaphragm 31 is located at the base of grinding chamber 10, and dividing wall 33 faces outlet 35. This way, in the first step of the organic waste treatment carried out by unit 1, the waste liquid fraction can outflow up to the water drain, which is in hydraulic connection with unit 1 by a duct 35.

    [0029] The second step of the organic waste treatment provides the arrangement of sieve 21 in the second position, in order to cause the solid fraction of the waste processed to reach grinding chamber 10, where it is finely chopped. In particular, in the grinding chamber knives 15 are arranged on the boundary of a rotating drum 11 and cooperate with a stationary knife 16 connected to the walls of chamber 10, in order to provide a substantially "comb-shaped" structure.

    [0030] More in detail, while rotating each knife 15 meets repeatedly a stationary knife 16, thus cutting repeatedly the organic waste, which eventually reaches a waste-collecting container 50. In particular, control valve 30 has dividing wall 33 in a position that does not block the path of the waste towards the waste-collecting container 50; diaphragm 31 faces outlet 35 to allow the outflow of a residual waste liquid fraction, along with an amount of washing fluid sprayed for removing any organic residues.

    [0031] Knives 15 can be arranged along drum 11 according to longitudinal rows, for example three at 120° from one another, and also arranged radially (figure 5). In an alternative exemplary embodiment, not shown in the figures, knives 15 can be arranged shifted from one another. Furthermore, knives 15 are provided shaped with a curved profile in order to direct a washing liquid in a desired direction.

    [0032] In figures 7A, 7B and 8, a carter of protection 80 is diagrammatically shown that covers grinding chamber 10 and control valve 30, so that moving parts existing in the unit cannot be reached by the user, when the machine is in normal running conditions. Carter 80 can be turned into two halves 81 and 82, in order to access the chamber from a closed position (figure 7A), for example by a closure handle 85 when the machine is off. This way the mechanical moving parts, and in particular the motor that operates the grinding knives, can be reached by the user in order to manually reverse the rotation and to remove possible undesired objects.

    [0033] Knives 15 are operated by a motor 60 that can be associated to a control circuit, not shown in the figures. The control circuit has the function of operating an inversion of the speed of rotation of knives 15 at particular operative conditions.

    [0034] Especially, when the control circuit detects a stop of the rotation of knives 15, for example owing to the presence of hard material, it causes the motor to carry out an inversion of the speed of rotation of knives 15, up to reaching a determined angular position. Then, the speed of rotation is again inverted of knives 15 that start again to rotate forwards, thus cutting further the waste.

    [0035] The situation is graphically shown in figure 10, where a qualitative diagram is shown of the angular speed (V) of knives 15 versus time (t). More in detail, starting from starting time t0, knives 15 proceed grinding regularly at speed V for a certain time. However, if at an instant t1 the knives are braked by the opposition caused by hard waste, for example a hazel, a bone, another hard object or in any case resistant to cutting, such a resistance would cause the knives 15 to be blocked, whereby the control circuit at instant t1 operates an inversion of the speed of rotation up to an instant t2, bringing the knives to a withdrawn angular position. Then, the knives 15 are moved again at forward speed and cut again the waste impacting the waste at a speed V. This step of inversion is repeated for example three times, by inverting the speed repeatedly back and forward at following times t3, t4, t5, t6, for then starting again after the last inversion, to run continuatively at speed V. If the knives block again, the cycle is repeated, even if with organic waste of normal hardness an inversion back and forward for three times and impact at a certain speed is enough to obtain the full grinding of the harder parts.

    [0036] Finally, as diagrammatically shown in figure 9, the grinding unit 1 above described can be integrated in a modular element 100 for kitchen units, having for example a size (width and depth) 30*60 or 45*60 or 60*60 cm; in the second and third size it is possible to associate said grinding unit and a compacting unit, so that a complete module for separate waste collection is obtained.

    [0037] The foregoing description of a specific embodiment will so fully reveal the invention according to the conceptual point of view, so that others, by applying current knowledge, will be able to modify and/or adapt for various applications such an embodiment without further research and without parting from the invention, and it is therefore to be understood that such adaptations and modifications will have to be considered as equivalent to the specific embodiment. The means and the materials to realise the different functions described herein could have a different nature without, for this reason, departing from the field of the invention. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.


    Claims

    1. Organic waste treatment unit (1) comprising:

    - an inlet (5) for introducing the waste to treat;

    - a grinding chamber (10) provided with grinding means (11, 15, 16) for the waste coming from said inlet;

    - a waste collecting container (50), for collecting the waste that has been ground in said chamber;

    characterised in that it further comprises:

    - an outlet (35) for liquid residues percolating from said waste through said grinding chamber (10);

    - flow sorting means (21,30) suitable for causing selectively only the liquid residues of said waste to pass towards said outlet or also a solid part separated from said liquid part to pass towards said waste collecting container (50).


     
    2. Organic waste treatment unit, according to claim 1, wherein said grinding means (11,15,16) comprise at least one knife rotating (15) about an axis of rotation and suitable for cooperating with a stationary knife (16), which is connected to a wall of said grinding chamber (10) in order to grind the waste coming from said inlet (5), said or each knife (15) being, in particular, mounted on the boundary of a rotating drum (11).
     
    3. Organic waste treatment unit, according to claim 2, wherein said knives (15) have a curved profile suitable to assist the outflow of a washing liquid downstream of said grinding chamber (10).
     
    4. Organic waste treatment unit, according to claim 3, wherein said knives (15) are arranged in a way selected from the group comprised of: in rows arranged longitudinally on said drum (11); arranged radially on said drum (11); shifted in different planes transversal to said drum (11).
     
    5. Organic waste treatment unit, according to claim 1, wherein said flow sorting means of the waste comprise, in combination or separately:

    - a sieve, arranged between said inlet and said waste grinding chamber, movable between a first position, where it allows the passage of only liquid residues percolating from the waste, and a second position, where it allows the passage also of the waste same, said sieve being operatively connected to

    - a control valve arranged downstream of the grinding chamber, suitable for preventing from/allowing the access of the waste towards the waste collecting container even if allowing the percolation of liquid residues.


     
    6. Organic waste treatment unit, according to claim 4, wherein said control valve comprises, in combination or separately:

    - a pierced diaphragm that when the sieve is at said first position faces the grinding chamber to allow the outflow of the liquid waste keeping the waste solid fraction, whereas at the second position it faces the outlet,

    - a dividing wall substantially parallel to said pierced diaphragm, suitable for blocking an access towards said waste collecting container when the sieve is at said first position and to allow an access towards said waste collecting container when the sieve is at said second position.


     
    7. Organic waste treatment unit, according to claim 1, wherein between said inlet and said grinding chamber means are provided for feeding a disinfecting solution suitable for preventing fermentation of the ground organic waste.
     
    8. Organic waste treatment unit, according to claim 1, wherein washing means are provided suitable for sending a certain amount of water in the unit for removing any residues from the grinding means and from inner walls of the unit same at the end of a cycle of operation.
     
    9. Organic waste treatment unit, according to claim 1, wherein said inlet has side walls of flexible material suitable to assist the introduction of waste in the grinding unit.
     
    10. Organic waste treatment unit, according to claim 1, wherein said grinding means are operated by motor means associated to a control circuit that in determined operative conditions operates inversion of the speed of rotation of said grinding means up to a determined angular position, for then causing another inversion of the speed of rotation up to cutting again the waste.
     
    11. Organic waste treatment unit, according to claim 1, wherein said control circuit measures the electrical power absorption of the motor and operates said inversion of speed of rotation of said grinding means when a measured value of said power absorption is different from a determined value.
     
    12. Modular element for kitchen units characterised in that it comprises a grinding unit according to the previous claims, said modular element comprising a piece of furniture having a height, depth and width of standard size for kitchen units.
     


    Ansprüche

    1. Einheit zur Behandlung von organischem Abfall (1), Folgendes umfassend:

    einen Einlass (5) zum Einführen des zu behandelnden Abfalls,

    eine Zerkleinerungskammer (10), die mit Zerkleinerungsmitteln (11, 15, 16) für den vom Einlass kommenden Abfall ausgestattet ist,

    einen Abfallsammelbehälter (50) zum Sammeln des Abfalls, der in der Kammer zerkleinert wurde,

    dadurch gekennzeichnet, dass sie ferner Folgendes umfasst:

    einen Auslass (35) für flüssige Rückstände, die aus dem Abfall durch die Zerkleinerungskammer (10) sickern,

    Mittel (21, 30) zum Sortieren des Förderstroms, die geeignet sind, wahlweise nur die flüssigen Rückstände des Abfalls zum Auslass zu leiten oder auch feste Bestandteile, die von den flüssigen Bestandteilen getrennt wurden, zum Abfallsammelbehälter (50) zu leiten.


     
    2. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei die Zerkleinerungsmittel (11 ,15, 16) mindestens ein Messer (15) umfassen, das sich um eine Rotationsachse dreht und geeignet ist, mit einem stationären Messer (16) zusammenzuwirken, das mit einer Wandung der Zerkleinerungskammer (10) verbunden ist, um den vom Einlass (5) kommenden Abfall zu zerkleinern, wobei das oder jedes Messer (15) einzeln am Umfang eines Drehzylinders (11) angebracht ist.
     
    3. Einheit zur Behandlung von organischem Abfall nach Anspruch 2, wobei die Messer (15) ein bogenförmiges Profil aufweisen, das geeignet ist, den Ausfluss einer Waschflüssigkeit hinter der Zerkleinerungskammer (10) zu unterstützen.
     
    4. Einheit zur Behandlung von organischem Abfall nach Anspruch 3, wobei die Messer (15) in einer Weise angeordnet sind, die aus einer Gruppe ausgewählt ist, die Folgendes umfasst: in längs auf dem Zylinder (11) angeordneten Reihen; radial auf dem Zylinder (11) angeordnet; versetzt in verschienen Ebenen quer zum Zylinder (11).
     
    5. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei die Mittel zur Stromsortierung des Abfalls in Kombination oder einzeln Folgendes umfassen:

    - ein Sieb, das zwischen dem Einlass und der Abfallzerkleinerungskammer angeordnet ist und zwischen einer ersten Position, in der nur die Durchleitung von flüssigen Rückständen, die aus dem Abfall sickern, und einer zweiten Position, in der auch die Durchleitung des Abfalls ermöglicht wird, bewegt werden kann, wobei das Sieb zusammenwirkt mit:

    - einem Steuerventil, das der Zerkleinerungskammer nachgeordnet und dafür geeignet ist, den Zugang des Abfalls zum Abfallsammelbehälter selbst dann zu verhindern/ermöglichen, wenn das Durchsickern der flüssigen Rückstände ermöglicht wird.


     
    6. Einheit zur Behandlung von organischem Abfall nach Anspruch 4, wobei das Steuerventil in Kombination oder einzeln Folgendes umfasst:

    - eine Öffnung aufweisende Membran, die den Anteil festen Abfalls zurückhält, wenn das Sieb in seiner ersten Position zur Zerkleinerungskammer zeigt, um den Ausfluss des flüssigen Abfalls unter Zurückhaltung der festen Bestandteile des Abfalls zu ermöglichen, wohingegen es an seiner zweiten Position zum Auslass zeigt,

    - eine Trennwand, die im Wesentlichen parallel zur Öffnungen aufweisenden Membran liegt und geeignet ist, einen Zugang zum Abfallsammelbehälter zu verschließen, wenn sich das Sieb an seiner ersten Position befindet, und einen Zugang zum Abfallsammelbehälter zu ermöglichen, wenn sich das Sieb an seiner zweiten Position befindet.


     
    7. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei zwischen dem Einlass und der Zerkleinerungskammer Mittel zum Zuführen einer Desinfektionslösung bereitgestellt werden, die geeignet ist, das Gären des organischen Abfalls am Boden zu verhindern.
     
    8. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei Mittel zum Waschen bereitgestellt sind, die geeignet sind, zum Ende eines Betriebszyklus eine bestimmte Menge Wasser in die Einheit zu schicken, um jegliche Rückstände von den Zerkleinerungsmitteln und den Innenwänden der Einheit zu entfernen.
     
    9. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei der Einlass Seitenwände aus flexiblem Material aufweist, die geeignet sind, die Einleitung des Abfalls in die Zerkleinerungseinheit zu unterstützen.
     
    10. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei die Zerkleinerungsmittel durch Motormittel betrieben werden, die mit einem Steuerkreis verbunden sind, der unter bestimmten Betriebsbedingungen die Umkehrung der Drehgeschwindigkeit der Zerkleinerungsmittel bis zu einer bestimmten Winkelposition betreibt, um dann eine weitere Umkehrung der Drehgeschwindigkeit bis zum erneuten Zerschneiden des Abfalls zu veranlassen.
     
    11. Einheit zur Behandlung von organischem Abfall nach Anspruch 1, wobei der Steuerkreis den Verbrauch elektrischer Energie durch den Motor misst und die Umkehrung der Drehgeschwindigkeit der Zerkleinerungsmittel betreibt, wenn sich ein Messwert des Energieverbrauchs von einem festgelegten Wert unterscheidet.
     
    12. Modularelement für Kücheneinheiten, dadurch gekennzeichnet, dass es eine Zerkleinerungseinheit nach den vorhergehenden Ansprüchen umfasst, wobei das Modularelement ein Möbelstück mit einer Höhe, Tiefe und Breite in Standardgrößen für Kücheneinheiten umfasst.
     


    Revendications

    1. Unité de traitement de déchets organiques (1) comprenant :

    une entrée (5) pour introduire les déchets à traiter ;

    une chambre de broyage (10) prévue avec des moyens de broyage (11, 15, 16) pour les déchets provenant de ladite entrée ;

    un récipient de collecte de déchets (50) pour collecter les déchets qui ont été broyés dans ladite chambre ;

    caractérisée en ce qu'elle comprend en outre :

    une sortie (35) pour les résidus liquides sortant desdits déchets par ladite chambre de broyage (10) ;

    des moyens de triage de flux (21, 30) appropriés pour amener sélectivement uniquement les résidus liquides desdits déchets à passer par ladite sortie ou bien également une partie solide séparée de ladite partie liquide à passer par ledit récipient de collecte de déchets (50).


     
    2. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle lesdits moyens de broyage (11, 15, 16) comprennent au moins un couteau (15) tournant autour d'un axe de rotation et approprié pour coopérer avec un couteau fixe (16) qui est raccordé à une paroi de ladite chambre de broyage (10) afin de broyer les déchets provenant de ladite entrée (5), ledit ou chaque couteau (15) étant monté en particulier sur la limite d'un tambour rotatif (11).
     
    3. Unité de traitement de déchets organiques, selon la revendication 2, dans laquelle lesdits couteaux (15) ont un profil incurvé approprié pour aider le flux sortant d'un liquide de lavage en aval de ladite chambre de broyage (10).
     
    4. Unité de traitement de déchets organiques, selon la revendication 3, dans laquelle lesdits couteaux (15) sont agencés d'une manière choisie dans le groupe se composant de rangées agencées longitudinalement sur ledit tambour (11) ; agencées radialement sur ledit tambour (11) ; décalées dans des plans différents transversalement par rapport audit tambour (11).
     
    5. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle lesdits moyens de triage de flux des déchets comprennent, en combinaison ou séparément :

    un tamis, agencé entre ladite entrée et ladite chambre de broyage de déchets, mobile entre une première position dans laquelle il permet uniquement le passage des résidus liquides sortant des déchets, et une seconde position dans laquelle il permet uniquement le passage également des déchets eux-mêmes, ledit tamis étant raccordé de manière opérationnelle à :

    une soupape de commande agencée en aval de la chambre de broyage, appropriée pour empêcher / permettre l'accès aux déchets vers le récipient de collecte de déchets même si elle permet la filtration des résidus liquides.


     
    6. Unité de traitement de déchets organiques, selon la revendication 4, dans laquelle ladite soupape de commande comprend en combinaison ou séparément :

    un diaphragme perforé qui, lorsque le tamis est dans ladite première position, fait face à la chambre de broyage pour permettre le flux sortant des déchets liquides gardant la partie solide de déchets, alors que dans la seconde position il fait face à la sortie,

    une paroi de division sensiblement parallèle audit diaphragme perforé, appropriée pour bloquer un accès vers ledit récipient de collecte de déchets lorsque le tamis est dans ladite première position et pour permettre un accès vers ledit récipient de collecte de déchets lorsque le manchon est dans ladite seconde position.


     
    7. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle entre ladite entrée et ladite chambre de broyage, on prévoit des moyens pour alimenter une solution désinfectante appropriée pour empêcher la fermentation des déchets organiques de terre.
     
    8. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle on prévoit des moyens de lavage appropriés pour envoyer une certaine quantité d'eau dans l'unité afin de retirer des résidus des moyens de broyage et des parois internes de l'unité elle-même à la fin d'un cycle de fonctionnement.
     
    9. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle ladite entrée a des parois latérales en matériau flexible approprié pour aider l'introduction des déchets dans l'unité de broyage.
     
    10. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle lesdits moyens de broyage sont actionnés par des moyens de moteur associés à un circuit de commande qui dans des conditions opérationnelles déterminées actionne l'inversion de la vitesse de rotation desdits moyens de broyage jusqu'à une position angulaire déterminée, pour provoquer ensuite une autre inversion de la vitesse de rotation jusqu'à couper à nouveau les déchets.
     
    11. Unité de traitement de déchets organiques, selon la revendication 1, dans laquelle ledit circuit de commande mesure l'absorption de puissance électrique du moteur et actionne ladite inversion de vitesse de rotation desdits moyens de broyage lorsqu'une valeur mesurée de ladite absorption de puissance est différente d'une valeur déterminée.
     
    12. Elément modulaire pour des unités de cuisine, caractérisé en ce qu'il comprend une unité de broyage selon les revendications précédentes, ledit élément modulaire comprenant une pièce de meuble ayant une hauteur, une profondeur et une largeur de taille standard pour les unités de cuisine.
     




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    Cited references

    REFERENCES CITED IN THE DESCRIPTION



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    Patent documents cited in the description