EP0145601A1 - Device for separating sheet material in a refuse processing plant - Google Patents

Device for separating sheet material in a refuse processing plant Download PDF

Info

Publication number
EP0145601A1
EP0145601A1 EP84402539A EP84402539A EP0145601A1 EP 0145601 A1 EP0145601 A1 EP 0145601A1 EP 84402539 A EP84402539 A EP 84402539A EP 84402539 A EP84402539 A EP 84402539A EP 0145601 A1 EP0145601 A1 EP 0145601A1
Authority
EP
European Patent Office
Prior art keywords
sheath
conduit
flow
duct
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84402539A
Other languages
German (de)
French (fr)
Other versions
EP0145601B1 (en
Inventor
Jean Pierre Panaud
François Petit
Pierre Riaux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D'entreprises Industrielles Internationale SA Ste
Original Assignee
D'entreprises Industrielles Internationale SA Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by D'entreprises Industrielles Internationale SA Ste filed Critical D'entreprises Industrielles Internationale SA Ste
Priority to AT84402539T priority Critical patent/ATE33949T1/en
Publication of EP0145601A1 publication Critical patent/EP0145601A1/en
Application granted granted Critical
Publication of EP0145601B1 publication Critical patent/EP0145601B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents

Definitions

  • the present invention relates to a device for the separation of sheet materials in a waste treatment installation.
  • humus It is known to make humus from waste, for example from household waste. However, it is known that only the fermentable materials participate in the formation of humus, while the non-fermentable or poorly fermentable materials such as plastic bags, rags, papers, cartons, etc. can on the contrary be advantageously used as fuels.
  • the present invention aims to provide a device for the separation of sheet materials which constitute, in waste and more particularly in urban waste, an essential part of non-ferrous and non-fermentable materials.
  • the subject of the invention is a device for the separation of sheet materials in a waste treatment installation, characterized in that it comprises a first substantially vertical sheath, means for causing in this first sheath a ascending air flow, a first duct opening at the upper part of said first duct, and air suction means in said first duct to cause at the upper part of said duct a transverse air flow charged with said materials in sheets and entering said first duct.
  • Said first sheath can for example be the feed sheath of a first mill. In the case of a hammer mill, it can participate itself, by its rotation, in the formation of the ascending air flow.
  • said first sheath forms a venturi below the zone through which said first duct opens, which has the effect of causing an acceleration of the upward air flow.
  • the upper surface of said first duct is inclined upwards towards the interior of the sheath in its zone adjacent to said sheath.
  • This arrangement is to prevent heavy materials, thrown for example by the impact of the hammers of the crusher, from engaging in the first conduit. Such heavy materials indeed hit the inclined surface, and are thus returned to the sheath where they fall down.
  • the lower surface of said first conduit can on the other hand be inclined downward towards the interior of the sheath in its zone adjacent to said sheath.
  • This measure also aims to prevent the penetration into the first conduit of heavy products since these would be brought by sliding on the lower surface of this first conduit to fall back into the sheath.
  • the device comprises means arranged at the end of said first conduit for stopping said sheet materials.
  • a second duct leaving said stop means can then bring the air flow, freed from said sheet materials, to a cyclone for its dedusting.
  • the sheet materials are thus recovered from the stop means provided at the end of the first conduit.
  • a third conduit can then be provided leaving the cyclone to recycle the dedusted air.
  • This third conduit advantageously opens into said first sheath substantially opposite said first conduit in order to carry out the transverse air flow under the best conditions.
  • Said means for stopping the sheet materials preferably comprises a receiving member such as a grid or a wire mesh disposed in a plane transverse to the air flow at the end of said first duct and movable in this plane of the position where it is located across said flow at positions where it is away from this flow.
  • a receiving member such as a grid or a wire mesh disposed in a plane transverse to the air flow at the end of said first duct and movable in this plane of the position where it is located across said flow at positions where it is away from this flow.
  • the sheet materials are, at the outlet of the first duct, pressed against the receiving grid which is across the air flow and then are brought by the movement of this grid outside the flow at a point. where they detach themselves from the grid.
  • a device for the separation of sheet materials in a waste treatment installation characterized in that it comprises a first conduit, means for driving in this first duct a flow of air charged with said sheet materials, and a receiving member such as a grid or a metallic fabric disposed in a plane transverse to the flow of air at the end of said first duct and movable in this plane from the position where it is across said flow to positions where it is away from this flow.
  • a receiving member such as a grid or a metallic fabric disposed in a plane transverse to the flow of air at the end of said first duct and movable in this plane from the position where it is across said flow to positions where it is away from this flow.
  • said receiving member is preferably constituted by one of the strands of a mat of grids rotating in front of the end of said first duct.
  • said receiving member is substantially vertical and is arranged to move down from the position where it is across said flow to the positions where it is away from this flow .
  • An air collection box can be placed behind said receiving member, said box having a first opening substantially opposite said end of the first duct.
  • This box can also have a second opening to which is connected a second conduit for the evacuation of the air freed from said sheet materials.
  • said receiving member is disposed inside a second substantially vertical sheath, this second sheath constituting the supply sheath of a second mill.
  • the sheet materials which have been recovered can be ground in order to be further processed, for example to be transformed into combustible pellets.
  • the device shown in the drawing generally comprises a supply assembly 1 for waste, for example urban waste, a set 2 for separating sheet materials and grinding of other materials, a set 3 for recovery and grinding sheet materials, and a set 4 of dusting and air recycling.
  • the assembly 1 comprises a conveyor belt 5 whose upper end is disposed above an endless belt 6 has scales metal with blades 7 for opening plastic bags generally used for the collection of urban waste.
  • the endless belt 6 brings the waste to an opening 8 formed in one of the vertical walls of a vertical feed sheath 9 of a hammer mill 10.
  • a fan 14 has its outlet duct 15 which opens into the duct 9 oriented upwards.
  • the fan 14 creates in the duct 9 an ascending air flow which carries the light materials, and more particularly the sheet materials, upwards.
  • a first suction conduit 16 opens at the upper part of the sheath 9 through an orifice 17 ( Figure 3).
  • a venturi 18 produced for example using angles or folded sheets forms a constriction in the sheath 9 between the supply orifice 8 and the orifice 17 of the duct 16.
  • This venturi 18 has the effect of accelerating the upward air flow which entails the sheet materials.
  • the duct 16 comprises in its zone adjacent to the sheath 9 an upper surface 19 a inclined upwards in the direction of the sheath 9 and a lower surface 19b inclined downwards.
  • the conduit 16 has its other end which penetrates into a second vertical sheath 21 supplying a second mill 22.
  • the conduit 16 has a form of venturi in order to accelerate the flow.
  • an endless belt 22 produced in the form of a grid and wound on two rollers 23 one of which is motor to drive the grid 22 in a rotational movement.
  • the pitch of the grid 22 can for example be of the order of a few centimeters and its forward speed of the order of 2 meters per second.
  • a box 24 for collecting air is placed in the sheath 21 between the two strands of the grid 22.
  • this grid 22 has not been shown in FIG. 2 which shows the box 24 in detail.
  • This box has an opening 25 located opposite the opening 26 at the end of the duct 16, on the other side of the grid 22 which therefore passes between the openings 25 and 26.
  • the box 24 has in one of its vertical faces adjacent to the face in which the opening 25 is formed, another opening connected to a second duct 27.
  • the flow of air loaded with sheet materials which arrives through the line 16 enters the box 24 after being discharged of its sheet materials on the grid 22 then leaves the box 24 through the second pipe 27.
  • the sheet materials which are pressed against the grid in the area of the opening 25 are driven down by the movement of this grid and then detach when the portion of the grid on which they are pressed out of the air flow. These sheet materials then fall into the sheath 21 to the crusher 22 where they are shredded.
  • the conduit 27 opens in a known manner into a cyclone 28 from which it emerges through the axial conduit 29 after being dusted.
  • the dust is collected at the bottom of the cyclone 28 at the valve 30.
  • the dedusted air is then accelerated by a fan 31 driven by a motor 32 to be returned in a third conduit 33 which opens at the upper part of the sheath 9 through an orifice 34 located substantially opposite the orifice 17 of the conduit 16 .
  • the fermentable products capable of forming humus are recovered at the outlet from the crusher 10, the non-fermentable or slightly fermentable products at the outlet of the crusher 22 in the form of sheets such as plastic materials, papers, fabrics, cardboard etc ... with the help of which we can then make combustible pellets, and the dust at the base of cyclone 28.
  • the sheet materials are separated from the fermentable materials at the level of the sheath 9 where they are entrained upward by the ascending air flow caused by the fan 14. They are then supported by the transverse air flow coming from from the orifice 34 of the conduit 33 and moving towards the orifice 17 of the conduit 16 to be brought to the receiving grid 22 which allows their recovery.
  • the invention is not limited to the embodiment described above to which various variants and modifications can be made without departing from the scope of the invention

Landscapes

  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Cyclones (AREA)
  • Making Paper Articles (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

1. A device for separation of sheet material in an apparatus for treatment of refuse, comprising separation means, stop means for the sheet materials, a cyclone (28), a second duct (27) between said stop means and the cyclone, a third duct between the cyclone and the separation means, and a blower (31) for ensuring a flow of air in a circuit formed between the separation means, the stop means, the cyclone, and back to the separation means, through said second and third ducts, characterised in that said separation means comprises a first passage (9), substantially vertical, and means (10, 14) for causing in this first passage an ascending flow of air, in that said device comprises a first duct (16) of venturi shape between said first passage and said stop means to close said air circuit, and in that said first and third ducts open substantially opposite each other on to the upper part of said first passage to cause a transverse flow of air.

Description

La présente invention concerne un dispositif pour la séparation des matériaux en feuilles dans une installation de traitement de déchets.The present invention relates to a device for the separation of sheet materials in a waste treatment installation.

Il est connu de réaliser de l'humus à partir de déchets, par exemple à partir d'ordures ménagères. On sait toutefois que seul participent à la formation d'humus les matériaux fermentescibles, alors que les matériaux non ou peu fermentescibles tels que sacs en plastique, chiffons, papiers, cartons, etc.... peuvent au contraire être avantageusement utilisés comme combustibles.It is known to make humus from waste, for example from household waste. However, it is known that only the fermentable materials participate in the formation of humus, while the non-fermentable or poorly fermentable materials such as plastic bags, rags, papers, cartons, etc. can on the contrary be advantageously used as fuels.

La présente invention vise à fournir un dispositif pour la séparation des matériaux en feuilles qui constituent, dans les déchets et plus particulièrement dans les déchets urbains, une part essentielle des matériaux non ferreux et non fermentescibles.The present invention aims to provide a device for the separation of sheet materials which constitute, in waste and more particularly in urban waste, an essential part of non-ferrous and non-fermentable materials.

A cet effet, l'invention a pour objet un dispositif pour la séparation des matériaux en feuilles dans une installation de traitement de déchets, caractérisé par le fait qu'il comporte une première gaine sensiblement verticale, des moyens pour provoquer dans cette première gaine un écoulement d'air ascendant, un premier conduit débouchant à la partie supérieure de ladite première gaine, et des moyens d'aspiration d'air dans ledit premier conduit pour provoquer à la partie supérieure de ladite gaine un écoulement d'air transversal chargé desdits matériaux en feuilles et pénétrant dans ledit premier conduit.To this end, the subject of the invention is a device for the separation of sheet materials in a waste treatment installation, characterized in that it comprises a first substantially vertical sheath, means for causing in this first sheath a ascending air flow, a first duct opening at the upper part of said first duct, and air suction means in said first duct to cause at the upper part of said duct a transverse air flow charged with said materials in sheets and entering said first duct.

Les matériaux en feuilles qui d'une part sont légers, et d'autre part présentent une surface importante sont ainsi conduits par l'écoulement ascendant à la partie supérieure de la gaine où ils sont entraînés par l'écoulement transversal dans le premier conduit pour leur traitement ultérieur.The sheet materials which on the one hand are light, and on the other hand have a large surface are thus led by the upward flow to the upper part of the sheath where they are entrained by the transverse flow in the first conduit for their further processing.

Ladite première gaine peut être par exemple la gaine d'alimentation d'un premier broyeur. Dans le cas d'un broyeur à marteau, celui-ci peut participer lui-même, par sa rotation, à la formation de l'écoulement d'air ascendant.Said first sheath can for example be the feed sheath of a first mill. In the case of a hammer mill, it can participate itself, by its rotation, in the formation of the ascending air flow.

Avantageusement, ladite première gaine forme un venturi en dessous de la zone par laquelle débouche ledit premier conduit, ce qui a pour effet de provoquer une accélération de l'écoulement d'air ascendant.Advantageously, said first sheath forms a venturi below the zone through which said first duct opens, which has the effect of causing an acceleration of the upward air flow.

Dans un mode de réalisation particulier de l'invention, la surface supérieure dudit premier conduit est inclinée vers le haut en direction de l'intérieur de la gaine dans sa zone adjacente à ladite gaine.In a particular embodiment of the invention, the upper surface of said first duct is inclined upwards towards the interior of the sheath in its zone adjacent to said sheath.

Cette disposition a pour but d'empêcher que des matériaux lourds, projetés par exemple par le choc des marteaux du broyeur, ne s'engagent dans le premier conduit. De tels matériaux lourds frappent en effet la surface inclinée, et sont ainsi renvoyés dans la gaine où ils retombent vers le bas.The purpose of this arrangement is to prevent heavy materials, thrown for example by the impact of the hammers of the crusher, from engaging in the first conduit. Such heavy materials indeed hit the inclined surface, and are thus returned to the sheath where they fall down.

La surface inférieure dudit premier conduit peut par contre être inclinée vers le bas en direction de l'intérieur de la gaine dans sa zone adjacente à ladite gaine.The lower surface of said first conduit can on the other hand be inclined downward towards the interior of the sheath in its zone adjacent to said sheath.

Cette mesure a également pour but d'empêcher la pénétration dans le premier conduit de produits lourds puisque ceux-ci seraient amenés en glissant sur la surface inférieure de ce premier conduit à retomber dans la gaine.This measure also aims to prevent the penetration into the first conduit of heavy products since these would be brought by sliding on the lower surface of this first conduit to fall back into the sheath.

Selon un mode de réalisation préféré de l'invention, le dispositif comprend des moyens disposés à l'extrémité dudit premier conduit pour arrêter lesdits matériaux en feuilles.According to a preferred embodiment of the invention, the device comprises means arranged at the end of said first conduit for stopping said sheet materials.

Un deuxième conduit partant desdits moyens d'arrêt peut alors amener l'écoulement d'air, débarrassé desdits matériaux en feuilles, à un cyclone pour sa dépoussiération.A second duct leaving said stop means can then bring the air flow, freed from said sheet materials, to a cyclone for its dedusting.

Les matériaux en feuilles sont ainsi récupérés sur les moyens d'arrêt prévus à l'extrémité du premier conduit.The sheet materials are thus recovered from the stop means provided at the end of the first conduit.

Un troisième conduit peut alors être prévu partant du cyclone pour recycler l'air dépoussiéré.A third conduit can then be provided leaving the cyclone to recycle the dedusted air.

Ce troisième conduit débouche avantageusement dans ladite première gaine sensiblement en vis-à-vis dudit premier conduit afin de réaliser l'écoulement d'air transversal dans les meilleures conditions.This third conduit advantageously opens into said first sheath substantially opposite said first conduit in order to carry out the transverse air flow under the best conditions.

Lesdits moyens pour arrêter les matériaux en feuilles comprennent de préférence un organe de réception tel qu'une grille ou une toile métallique disposé dans un plan transversal à l'écoulement d'air à l'extrémité dudit premier conduit et mobile dans ce plan de la position où il se trouve en travers dudit écoulement à des positions où il est à l'écart de cet écoulement.Said means for stopping the sheet materials preferably comprises a receiving member such as a grid or a wire mesh disposed in a plane transverse to the air flow at the end of said first duct and movable in this plane of the position where it is located across said flow at positions where it is away from this flow.

Ainsi les matériaux en feuilles sont, à la sortie du premier conduit, plaqués contre la grille de réception qui se trouve en travers de l'écoulement d'air puis sont amenés par le mouvement de cette grille en dehors de l'écoulement en un point où ils se détachent d'eux mêmes de la grille.Thus the sheet materials are, at the outlet of the first duct, pressed against the receiving grid which is across the air flow and then are brought by the movement of this grid outside the flow at a point. where they detach themselves from the grid.

Selon un autre aspect de l'invention, celle-ci a également pour objet un dispositif pour la séparation des matériaux en feuilles dans une installation de traitement de déchets, caractérisé par le fait qu'il comporte un premier conduit, des moyens pour entraîner dans ce premier conduit un écoulement d'air chargé desdits matériaux en feuilles, et un organe de récèption tel qu'une grille ou une toile métallique disposé dans un plan transversal à l'écoulement d'air à l'extrémité dudit premier conduit et mobile dans ce plan de la position où il se trouve en travers dudit écoulement à des positions où il est à l'écart de cet écoulement.According to another aspect of the invention, it also relates to a device for the separation of sheet materials in a waste treatment installation, characterized in that it comprises a first conduit, means for driving in this first duct a flow of air charged with said sheet materials, and a receiving member such as a grid or a metallic fabric disposed in a plane transverse to the flow of air at the end of said first duct and movable in this plane from the position where it is across said flow to positions where it is away from this flow.

Dans tous les cas, ledit organe de réception est de préférence constitué par l'un des brins d'un tapis de grilles tournant devant l'extrémité dudit premier conduit.In all cases, said receiving member is preferably constituted by one of the strands of a mat of grids rotating in front of the end of said first duct.

Dans un mode de réalisation particulier de l'invention, ledit organe de réception est sensiblement vertical et est agencé pour se déplacer vers le bas de la position où il se trouve en travers dudit écoulement aux positions où il est à l'écart de cet écoulement.In a particular embodiment of the invention, said receiving member is substantially vertical and is arranged to move down from the position where it is across said flow to the positions where it is away from this flow .

Ainsi les matériaux en feuilles qui sont plaqués contre la grille sont entraînés vers le bas puis tombent de la grille lorsque la portion de grille sur laquelle où ils se trouvent est amenée en dehors de l'écoulement d'air.Thus the sheet materials which are pressed against the grid are driven downwards then fall from the grid when the grid portion on which they are located is brought out of the air flow.

Un caisson de collecte d'air peut être disposé derrière ledit organe de réception, ledit caisson présentant une première ouverture sensiblement en vis-à-vis de ladite extrémité du premier conduit.An air collection box can be placed behind said receiving member, said box having a first opening substantially opposite said end of the first duct.

Ce caisson peut également présenter une deuxième ouverture à laquelle est reliée un deuxième conduit pour l'évacuation de l'air débarrassé desdits matériaux en feuilles.This box can also have a second opening to which is connected a second conduit for the evacuation of the air freed from said sheet materials.

Dans un mode de réalisation particulier de l'invention, ledit organe de réception est disposé à l'intérieur d'une deuxième gaine sensiblement verticale, cette deuxième gaine constituant la gaine d'alimentation d'un deuxième broyeur.In a particular embodiment of the invention, said receiving member is disposed inside a second substantially vertical sheath, this second sheath constituting the supply sheath of a second mill.

Ainsi les matériaux en feuilles qui ont été récupérés peuvent être broyés afin d'être ultérieurement traités, par exemple pour être transformés en granulés combustibles.Thus the sheet materials which have been recovered can be ground in order to be further processed, for example to be transformed into combustible pellets.

On décrira maintenant à titre d'exemple non limitatif un mode de réalisation particulier de l'invention en référence aux dessins schématiques annexés dans lesquels :

  • -La figure 1 est une vue en perspective d'un dispositif selon l'invention,
  • -La figure 2 est une vue à plus grande échelle du caisson de collecte d'air représenté à la figure 1 et,
  • -La figure 3 est une vue en coupe selon la ligne III.III de la figure 1.
A particular embodiment of the invention will now be described by way of nonlimiting example with reference to the appended schematic drawings in which:
  • FIG. 1 is a perspective view of a device according to the invention,
  • FIG. 2 is a view on a larger scale of the air collection box shown in FIG. 1 and,
  • - Figure 3 is a sectional view along line III.III of Figure 1.

Le dispositif représenté au dessin comporte d'une manière générale un ensemble d'alimentation 1 de déchets, par exemple de déchets urbains, un ensemble 2 de séparation des matériaux en feuilles et de broyage des autres matériaux, un ensemble 3 de récupération et de broyage des matériaux en feuilles, et un ensemble 4 de dépoussiérage et de recyclage de l'air.The device shown in the drawing generally comprises a supply assembly 1 for waste, for example urban waste, a set 2 for separating sheet materials and grinding of other materials, a set 3 for recovery and grinding sheet materials, and a set 4 of dusting and air recycling.

L'ensemble 1 comporte un transporteur à bande 5 dont l'extrémité supérieure est disposée au dessus d'un tapis sans fin 6 a écailles métalliques muni de lames 7 pour l'ouverture des sacs en plastique généralement utilisés pour la collecte des déchets urbains. Le tapis sans fin 6 amène les déchets à une ouverture 8 formée dans une des parois verticales d'une gaine d'alimentation verticale 9 d'un broyeur a marteau 10 . Une plaque de butée 11, dont la hauteur est réglable à l'aide d'un organe 12 tel qu'une vis et dont la partie inférieure est également munie de lames d'ouverture 13, est disposée à l'entrée de l'orifice 8 au dessus de l'extrémité du tapis 6.The assembly 1 comprises a conveyor belt 5 whose upper end is disposed above an endless belt 6 has scales metal with blades 7 for opening plastic bags generally used for the collection of urban waste. The endless belt 6 brings the waste to an opening 8 formed in one of the vertical walls of a vertical feed sheath 9 of a hammer mill 10. An abutment plate 11, the height of which is adjustable using a member 12 such as a screw and the lower part of which is also provided with opening blades 13, is disposed at the inlet of the orifice 8 above the end of the mat 6.

Ainsi les déchets sont amenés sur ce tapis 6 où les sacs en plastique sont ouverts à l'aide des lames 7 et 13, après quoi les déchets sont déversés dans la gaine 9 où les matériaux lourds tombent vers le broyeur 10.Thus the waste is brought to this belt 6 where the plastic bags are opened using the blades 7 and 13, after which the waste is poured into the sheath 9 where the heavy materials fall towards the crusher 10.

Un ventilateur 14 a son conduit de sortie 15 qui débouche dans la gaine 9 orienté vers le haut. Le ventilateur 14 crée dans la gaine 9 un courant d'air ascendant qui entraîne les matériaux légers, et plus particulièrement les matériaux en feuilles, vers le haut.A fan 14 has its outlet duct 15 which opens into the duct 9 oriented upwards. The fan 14 creates in the duct 9 an ascending air flow which carries the light materials, and more particularly the sheet materials, upwards.

Un premier conduit d'aspiration 16 débouche à la partie supérieure de la gaine 9 par un orifice 17 (figure 3).A first suction conduit 16 opens at the upper part of the sheath 9 through an orifice 17 (Figure 3).

Un venturi 18 réalisé par exemple à l'aide de cornières ou de tôles pliées forme un étranglement dans la gaine 9 entre l'orifice d'alimentation 8 et l'orifice 17 du conduit 16. Ce venturi 18 a pour effet d'accélérer l'écoulement d'air ascendant qui entraîne les matériaux en feuilles.A venturi 18 produced for example using angles or folded sheets forms a constriction in the sheath 9 between the supply orifice 8 and the orifice 17 of the duct 16. This venturi 18 has the effect of accelerating the upward air flow which entails the sheet materials.

Le conduit 16 comporte dans sa zone adjacente à la gaine 9 une surface supérieure 19 a inclinée vers le haut en direction de la gaine 9 et une surface inférieure 19 b inclinée vers le bas. Ainsi des produits lourds qui seraient projetés dans la partie supérieure de la gaine 9 par l'action du broyeur 10 ne pourraient être entraînés dans le conduit 16 puisqu'ils frapperaient la surface 19 a qui les renverrait soit directement dans la gaine 9 soit sur la surface inférieure 19 b d'où ils glisseraient dans la gaine 9 comme cela est représenté par la flèche 20.The duct 16 comprises in its zone adjacent to the sheath 9 an upper surface 19 a inclined upwards in the direction of the sheath 9 and a lower surface 19b inclined downwards. Thus heavy products which would be thrown into the upper part of the sheath 9 by the action of the crusher 10 could not be entrained in the conduit 16 since they would strike the surface 19 which would return them either directly in the sheath 9 or on the lower surface 19 b from which they would slide into the sheath 9 as represented by the arrow 20.

Le conduit 16 a son autre extrémité qui pénétre dans une deuxième gaine verticale 21 d'alimentation d'un deuxième broyeur 22.The conduit 16 has its other end which penetrates into a second vertical sheath 21 supplying a second mill 22.

Entre ces deux gaines, le conduit 16 présente une forme de venturi afin d'accélérer l'écoulement.Between these two sheaths, the conduit 16 has a form of venturi in order to accelerate the flow.

A l'intérieur de la gaine 21 et en face de l'extrémité du conduit 16 est disposé un tapis sans fin 22 réalisé sous forme d'une grille et enroulé sur deux rouleaux 23 dont l'un est moteur pour entraîner la grille 22 dans un mouvement de rotation. Dans ce mouvement, le brin du tapis 22 qui reçoit l'écoulement d'air provenant du conduit 16 se déplace vers le bas. Le pas de la grille 22 peut par exemple être de l'ordre de quelques centimètres et sa vitesse d'avancement de l'ordre de 2 mètres par seconde.Inside the sheath 21 and opposite the end of the conduit 16 is disposed an endless belt 22 produced in the form of a grid and wound on two rollers 23 one of which is motor to drive the grid 22 in a rotational movement. In this movement, the strand of the belt 22 which receives the flow of air from the duct 16 moves downward. The pitch of the grid 22 can for example be of the order of a few centimeters and its forward speed of the order of 2 meters per second.

Un caisson 24 de collecte d'air est disposé dans la gaine 21 entre les deux brins de la grille 22. Pour plus de clarté, cette grille 22 n'a pas été représentée sur la figure 2 qui montre en détail le caisson 24.A box 24 for collecting air is placed in the sheath 21 between the two strands of the grid 22. For greater clarity, this grid 22 has not been shown in FIG. 2 which shows the box 24 in detail.

Ce caisson comporte une ouverture 25 située en vis-à-vis de l'ouverture 26 de l'extrémité du conduit 16, de l'autre côté de la grille 22 qui passe donc entre les ouvertures 25 et 26.This box has an opening 25 located opposite the opening 26 at the end of the duct 16, on the other side of the grid 22 which therefore passes between the openings 25 and 26.

Le caisson 24 possède dans une de ses faces verticales adjacentes à la face dans laquelle est formée l'ouverture 25, une autre ouverture raccordée à un deuxième conduit 27. Ainsi, l'écoulement d'air chargé de matériaux en feuilles qui arrive par le conduit 16, pénètre dans le caisson 24 après être déchargé de ses matériaux en feuilles sur la grille 22 puis ressort du caisson 24 par le deuxième conduit 27. Les matériaux en feuilles qui sont plaqués contre la grille dans la zone de l'ouverture 25 sont entraînés vers le bas par le mouvement de cette grille puis s'en détachent lorsque la portion de la grille sur laquelle ils sont plaqués sort de l'écoulement d'air. Ces matériaux en feuilles tombent alors dans la gaine 21 jusqu'au broyeur 22 où ils sont déchiquetés.The box 24 has in one of its vertical faces adjacent to the face in which the opening 25 is formed, another opening connected to a second duct 27. Thus, the flow of air loaded with sheet materials which arrives through the line 16, enters the box 24 after being discharged of its sheet materials on the grid 22 then leaves the box 24 through the second pipe 27. The sheet materials which are pressed against the grid in the area of the opening 25 are driven down by the movement of this grid and then detach when the portion of the grid on which they are pressed out of the air flow. These sheet materials then fall into the sheath 21 to the crusher 22 where they are shredded.

Le conduit 27 débouche de façon connu dans un cyclone 28 d'où il ressort par le conduit axial 29 après avoir été dépoussiéré. Les poussières sont récupérées au bas du cyclone 28 au niveau de la vanne 30.The conduit 27 opens in a known manner into a cyclone 28 from which it emerges through the axial conduit 29 after being dusted. The dust is collected at the bottom of the cyclone 28 at the valve 30.

L'air dépoussiéré est alors accéléré par un ventilateur 31 entraîné par un moteur 32 pour être renvoyé dans un troisième conduit 33 qui débouche à la partie supérieure de la gaine 9 par un orifice 34 situé sensiblement en face de l'orifice 17 du conduit 16.The dedusted air is then accelerated by a fan 31 driven by a motor 32 to be returned in a third conduit 33 which opens at the upper part of the sheath 9 through an orifice 34 located substantially opposite the orifice 17 of the conduit 16 .

On conçoit donc que, grâce au dispositif de l'invention, on récupère à la sortie du broyeur 10 les produits fermentescibles susceptibles de former de l'humus, à la sortie du broyeur 22 les produits non ou peu fermentescibles se présentant sous forme de feuilles telles que les matières plastiquée, les papiers, les tissus, les cartons etc... à l'aide desquels on peut ensuite réaliser des granulés combustibles, et les poussières à la base du cyclone 28.It is therefore understandable that, thanks to the device of the invention, the fermentable products capable of forming humus are recovered at the outlet from the crusher 10, the non-fermentable or slightly fermentable products at the outlet of the crusher 22 in the form of sheets such as plastic materials, papers, fabrics, cardboard etc ... with the help of which we can then make combustible pellets, and the dust at the base of cyclone 28.

Les matériaux en feuilles sont séparés des matériaux fermentescibles au niveau de ]a gaine 9 où ils sont entraînés vers le haut par le courant d'air ascendant provoqué par le ventilateur 14. Ils sont ensuite pris en charge par le courant d'air transversal provenant de l'orifice 34 du conduit 33 et se dirigeant vers l'orifice 17 du conduit 16 pour être amenés vers la grille de réception 22 qui permet leur récupération. Bien entendu, l'invention n'est pas limitée au rode de réalisation décrit ci-dessus auquel diverses variantes et modifications peuvent être apportées sans sortir pour autant du cadre de l'inventionThe sheet materials are separated from the fermentable materials at the level of the sheath 9 where they are entrained upward by the ascending air flow caused by the fan 14. They are then supported by the transverse air flow coming from from the orifice 34 of the conduit 33 and moving towards the orifice 17 of the conduit 16 to be brought to the receiving grid 22 which allows their recovery. Of course, the invention is not limited to the embodiment described above to which various variants and modifications can be made without departing from the scope of the invention

Claims (14)

1. Dispositif pour la séparation des matériaux en feuilles dans une installation de traitement de déchets, caractérisé par le fait qu'il comporte une première gaine (9) sensiblement verticale, des moyens (10,14) pour provoquer dans cette première gaine un écoulement d'air ascendant, un premier conduit (16) débouchant à la partie supérieure de ladite première gaine, et des moyens d'aspiration d'air dans ledit premier conduit pour provoquer à la partie supérieure de ladite gaine un écoulement d'air transversal chargé desdits matériaux en feuilles et pénétrant dans ledit premier conduit.1. Device for the separation of sheet materials in a waste treatment installation, characterized in that it comprises a first substantially vertical sheath (9), means (10,14) for causing a flow in this first sheath ascending air, a first duct (16) opening at the upper part of said first duct, and air suction means in said first duct to cause at the upper part of said duct a transverse flow of charged air said sheet materials and entering said first conduit. 2. Dispositif selon la revendication 1, caractérisé par le fait que ladite première gaine forme un venturi (18) en dessous de la zone dans laquelle débouche ledit premier conduit.2. Device according to claim 1, characterized in that said first sheath forms a venturi (18) below the zone into which opens said first duct. 3. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé par le fait que la surface supérieure (19 a) dudit premier conduit est inclinée vers le haut en direction de l'intérieur de la gaine, dans sa zone adjacente à ladite gaine.3. Device according to any one of claims 1 and 2, characterized in that the upper surface (19a) of said first conduit is inclined upwards towards the interior of the sheath, in its zone adjacent to said sheath. 4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que la surface inférieure (19 b) dudit premier conduit est inclinée vers le bas en direction de l'intérieur de la gaine, dans sa zone adjacente à ladite gaine.4. Device according to any one of claims 1 to 3, characterized in that the lower surface (19 b) of said first conduit is inclined downward towards the interior of the sheath, in its area adjacent to said sheath. 5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé par le fait qu'il comprend des moyens disposés à l'extrémité dudit premier conduit, pour arrêter lesdits matériaux en feuilles.5. Device according to any one of claims 1 to 4, characterized in that it comprises means arranged at the end of said first conduit, for stopping said sheet materials. 6. Dispositif selon la revendication 5, caractérisé par le fait qu'il comprend un deuxième conduit (27), partant desdits moyens d'arrêt, pour amener l'écoulement d'air débarrassé desdits matériaux en feuilles à un cyclone 28 pour sa dépoussiération.6. Device according to claim 5, characterized in that it comprises a second duct (27), starting from said stop means, for bringing the flow of air freed from said sheet materials to a cyclone 28 for its dedusting . 7. Dispositif selon la revendication 6, caractérisé par le fait qu'il comprend un troisième conduit (33) partant dudit cyclone pour recycler l'air dépoussiéré.7. Device according to claim 6, characterized in that it comprises a third conduit (33) starting from said cyclone to recycle the dedusted air. 8. Dispositif selon la revendication 7, caractérisé par le fait que ledit troisième conduit débouche dans ladite première gaine sensiblement en vis-à-vas dudit premier conduit.8. Device according to claim 7, characterized in that said third conduit opens into said first sheath substantially opposite said first conduit. 9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé par le fait que lesdits moyens pour arrêter les matériaux en feuilles comprennent un organe de réception (22) disposé dans un plan transversal à l'écoulement d'air à l'extrémité dudit premier conduit et mobile dans ce plan de la position où il se trouve en travers dudit écoulement à des positions où il est à l'écart de cet écoulement.9. Device according to any one of claims 5 to 8, characterized in that the said means for stopping the sheet materials comprise a receiving member (22) disposed in a plane transverse to the air flow at the end of said first conduit and movable in this plane from the position where it lies across said flow to positions where it is away from this flow. 10. Dispositif selon la revendication 9 , caractérisé par le fait que ledit organe de réception est constitué par l'un des brins d'un tapis de grilles tournant devant l'extrémité dudit premier conduit.10. Device according to claim 9, characterized in that said receiving member is constituted by one of the strands of a mat of grids rotating in front of the end of said first conduit. 11. Dispositif selon l'une quelconque des revendications 9 et 10 , caractérisé par le fait que ledit organe de réception est sensiblement vertical et est agencé pour se déplacer vers le bas de la position où il se trouve en travers dudit écoulement aux positions où il est à l'écart de cet écoulement.11. Device according to any one of claims 9 and 10, characterized in that said receiving member is substantially vertical and is arranged to move down from the position where it is located across said flow to the positions where it is away from this flow. 12. Dispositif selon l'une quelconque des revendications 9 à 11, caractérisé par le fait qu'un caisson de collecte d'air (24) est disposé derrière ledit organe de réception, ledit caisson présentant une première ouverture (25) sensiblement en vis-à-vis de ladite extrémité du premier conduit.12. Device according to any one of claims 9 to 11, characterized in that an air collection box (24) is arranged behind said receiving member, said box having a first opening (25) substantially in screw opposite said end of the first conduit. 13. Dispositif selon la revendication 12, caractérisé par le fait que ledit caisson présente une deuxième ouverture à laquelle est relié un deuxième conduit (27) pour l'évacuation de l'air débarrassé desdits matériaux en feuilles.13. Device according to claim 12, characterized in that said box has a second opening to which is connected a second conduit (27) for the evacuation of the air freed from said sheet materials. 14. Dispositif selon l'une quelconque des revendications 9 à 13, caractérisé par le fait que ledit organe de réception est disposé à l'intérieur d'une deuxième gaine sensiblement verticale (21), cette deuxième gaine constituant la gaine d'alimentation d'un deuxième broyeur (22).14. Device according to any one of claims 9 to 13, characterized in that said receiving member is disposed inside a second substantially vertical sheath (21), this second sheath constituting the supply sheath d 'a second crusher (22).
EP84402539A 1983-12-08 1984-12-10 Device for separating sheet material in a refuse processing plant Expired EP0145601B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84402539T ATE33949T1 (en) 1983-12-08 1984-12-10 DEVICE FOR SEPARATING SHEET MATERIALS IN A WASTE TREATMENT PLANT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8319668A FR2556246B1 (en) 1983-12-08 1983-12-08 DEVICE FOR SEPARATING SHEET MATERIALS IN A WASTE PROCESSING PLANT
FR8319668 1983-12-08

Publications (2)

Publication Number Publication Date
EP0145601A1 true EP0145601A1 (en) 1985-06-19
EP0145601B1 EP0145601B1 (en) 1988-05-04

Family

ID=9294983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402539A Expired EP0145601B1 (en) 1983-12-08 1984-12-10 Device for separating sheet material in a refuse processing plant

Country Status (4)

Country Link
EP (1) EP0145601B1 (en)
AT (1) ATE33949T1 (en)
DE (1) DE3470852D1 (en)
FR (1) FR2556246B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479549A2 (en) * 1990-10-01 1992-04-08 Universal Leaf Tobacco Company Incorporated Apparatus for separating threshed leaf tobacco and method
DE19520486A1 (en) * 1994-06-24 1996-01-04 Iwa Ingenieurbuero Wolfgang Ad Sepn. of light matter from falling flow of waste rubbish
WO2013145871A1 (en) * 2012-03-28 2013-10-03 独立行政法人産業技術総合研究所 Particle sorting machine
CN111672758A (en) * 2020-07-29 2020-09-18 抚顺赛瑞特环保科技有限公司 Sorting device, waste residue recovery equipment and sorting method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981454A (en) * 1975-07-07 1976-09-21 Williams Patent Crusher And Pulverizer Company Waste material processing apparatus
FR2302148A1 (en) * 1975-02-27 1976-09-24 Goergen Fritz Aurel METHOD AND DEVICE FOR SEPARATING DIFFERENT FRACTIONS IN GARBAGE
US3986949A (en) * 1975-07-07 1976-10-19 Duca Mark B Di Air classifier
DE2522148A1 (en) * 1975-05-17 1976-12-02 Hans Richard Lenz Separator for mixed solids - using cross flow of air through a vertical filter screen for medium particles and then cyclone
FR2352596A1 (en) * 1976-05-24 1977-12-23 Femia Pneumatic separator to clean mechanically harvested vegetables - esp. green beams which become airborne while stones etc. fall through air stream
US4127476A (en) * 1977-06-13 1978-11-28 Fred D. Iannazzi Air-classification apparatus and process for the segregation of mixed office-paper waste
DE2804548A1 (en) * 1978-02-03 1979-08-09 Krauss Maffei Ag Wet paper separation from refuse - uses stream of hot air introduced at refuse entry end with subsequent sifting
US4361290A (en) * 1980-06-23 1982-11-30 Francis Peter M Adjustable rotary crusher

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2302148A1 (en) * 1975-02-27 1976-09-24 Goergen Fritz Aurel METHOD AND DEVICE FOR SEPARATING DIFFERENT FRACTIONS IN GARBAGE
DE2522148A1 (en) * 1975-05-17 1976-12-02 Hans Richard Lenz Separator for mixed solids - using cross flow of air through a vertical filter screen for medium particles and then cyclone
US3981454A (en) * 1975-07-07 1976-09-21 Williams Patent Crusher And Pulverizer Company Waste material processing apparatus
US3986949A (en) * 1975-07-07 1976-10-19 Duca Mark B Di Air classifier
FR2352596A1 (en) * 1976-05-24 1977-12-23 Femia Pneumatic separator to clean mechanically harvested vegetables - esp. green beams which become airborne while stones etc. fall through air stream
US4127476A (en) * 1977-06-13 1978-11-28 Fred D. Iannazzi Air-classification apparatus and process for the segregation of mixed office-paper waste
DE2804548A1 (en) * 1978-02-03 1979-08-09 Krauss Maffei Ag Wet paper separation from refuse - uses stream of hot air introduced at refuse entry end with subsequent sifting
US4361290A (en) * 1980-06-23 1982-11-30 Francis Peter M Adjustable rotary crusher

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479549A2 (en) * 1990-10-01 1992-04-08 Universal Leaf Tobacco Company Incorporated Apparatus for separating threshed leaf tobacco and method
EP0479549A3 (en) * 1990-10-01 1992-12-02 Universal Leaf Tobacco Company Incorporated Apparatus for separating threshed leaf tobacco and method
DE19520486A1 (en) * 1994-06-24 1996-01-04 Iwa Ingenieurbuero Wolfgang Ad Sepn. of light matter from falling flow of waste rubbish
DE19520486C2 (en) * 1994-06-24 1999-08-12 Iwa Ingenieurbuero Wolfgang Ad Process and plant for separating light material particles
WO2013145871A1 (en) * 2012-03-28 2013-10-03 独立行政法人産業技術総合研究所 Particle sorting machine
JPWO2013145871A1 (en) * 2012-03-28 2015-12-10 国立研究開発法人産業技術総合研究所 Particle sorter
US9821343B2 (en) 2012-03-28 2017-11-21 National Institute Of Advanced Industrial Science And Technology Particle sorting machine
CN111672758A (en) * 2020-07-29 2020-09-18 抚顺赛瑞特环保科技有限公司 Sorting device, waste residue recovery equipment and sorting method

Also Published As

Publication number Publication date
FR2556246B1 (en) 1986-09-19
FR2556246A1 (en) 1985-06-14
DE3470852D1 (en) 1988-06-09
EP0145601B1 (en) 1988-05-04
ATE33949T1 (en) 1988-05-15

Similar Documents

Publication Publication Date Title
CA2710097C (en) Separation system for recyclable material
US8307987B2 (en) Electrostatic material separator
US7810646B2 (en) Air separation of recyclable material
US3643797A (en) Trash-separating apparatus and method
US4154407A (en) Reducing drum for the extraction of cellulosic matters
FR2524819A1 (en) VERTICAL WHEEL MILLING METHOD AND MILL FOR PNEUMATIC CLASSIFICATION OF MOLDED MATERIALS
EP0425396A1 (en) Method and device for treating waste in order to recover organic material
FR2705254A1 (en) Feeding apparatus for fragmentation machines traversed by a gas flow.
EP0145601B1 (en) Device for separating sheet material in a refuse processing plant
JP3408139B2 (en) Wind sorting means
FR2725704A1 (en) Machine for separation of waste objects supplied in bulk
FR2535227A1 (en) METHOD AND DEVICE FOR CLEANING DRAINAGE PIPES
FR2579080A1 (en) CIGARETTE MANUFACTURING MACHINE HAVING A TOBACCO PARTICULATE SEPARATOR FOR DISPENSING USING PARTICLES
EP0271608B1 (en) Device for separating lighter objects from waste material
WO2012020201A1 (en) Device for separating ferrous and non-ferrous materials after grinding, incineration, or the like
CH616468A5 (en) Process and device for recycling wooden nonreturnable packaging and handling components containing parts made of ferromagnetic metal
FR2670133A1 (en) LOW-SIZE HAMMER CRUSHER FOR SHREDDING METAL OR OTHER OBJECTS.
EP0608658B1 (en) Air separator, particularly for sorting wastes
FR2677559A1 (en) Small-size hammer mill for shredding metal objects or the like, with automatic and continuous bottom feed
JP2020146603A (en) Sorting device
FR2481617A1 (en) Heavy item sorting equipment - has flexible plates in rows on drum generating air current acting on continuous flow of material
FR2742078A1 (en) Rotary drum furnace
CA2707999C (en) Electrostatic material separator
TN2009000425A1 (en) SEMI-INDUSTRIAL DRUM WEATHER FILLING MACHINE
EP2033714B1 (en) Method and installation for the recycling of ink-cartridges

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

RTI1 Title (correction)
17P Request for examination filed

Effective date: 19851205

17Q First examination report despatched

Effective date: 19870120

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19880504

Ref country code: AT

Effective date: 19880504

REF Corresponds to:

Ref document number: 33949

Country of ref document: AT

Date of ref document: 19880515

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19880531

REF Corresponds to:

Ref document number: 3470852

Country of ref document: DE

Date of ref document: 19880609

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19891123

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19891213

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19891228

Year of fee payment: 6

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19901231

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910308

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910328

Year of fee payment: 7

BERE Be: lapsed

Owner name: SOC. D'ENTREPRISES INDUSTRIELLES INTERNATIONALE

Effective date: 19901231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19910903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19911231

Ref country code: CH

Effective date: 19911231

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL