EP0494561A1 - Press for compacting and treating waste - Google Patents

Press for compacting and treating waste Download PDF

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Publication number
EP0494561A1
EP0494561A1 EP91403474A EP91403474A EP0494561A1 EP 0494561 A1 EP0494561 A1 EP 0494561A1 EP 91403474 A EP91403474 A EP 91403474A EP 91403474 A EP91403474 A EP 91403474A EP 0494561 A1 EP0494561 A1 EP 0494561A1
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EP
European Patent Office
Prior art keywords
chamber
piston
pressing chamber
slide
opposite
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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EP91403474A
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German (de)
French (fr)
Inventor
Jacques Gourdol
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Neyrpic Framatome Mecanique
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Neyrpic Framatome Mecanique
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Application filed by Neyrpic Framatome Mecanique filed Critical Neyrpic Framatome Mecanique
Publication of EP0494561A1 publication Critical patent/EP0494561A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
    • B30B9/067—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers with a retractable abutment member closing one end of the press chamber

Definitions

  • the present invention relates to a compacting press and treatment of heterogeneous waste.
  • waste is constituted by a liquid phase containing only organic products and by a solid phase containing metallic, mineral and synthetic materials.
  • This pressing chamber includes an inlet port, an outlet port and has a section equal to that of a piston of a first cylinder.
  • the wall of said chamber has a multitude of perforations opening into a channel for discharging the liquid phase extracted by compression of the waste.
  • the outlet of the pressing chamber is generally closed by a plug carried by a rod of a second cylinder opposite the first.
  • the pistons of the two cylinders are alternately movable between, on the one hand, a first position for compressing the waste and for discharging the liquid phase during which the piston of the first cylinder enters the pressing chamber and the piston of the second cylinder closes the outlet orifice of said chamber and, on the other hand, a second position for evacuating the solid phase during which the piston of the first jack continues its stroke and the piston of the second jack releases the outlet of said pressing chamber.
  • the piston stroke of the second cylinder is relatively large. This stroke corresponds to a thickness of the solid phase, that is, for an incompressible product, the equivalent of the length of the die which therefore requires a large oil capacity to actuate this cylinder. Given this stroke, the response time of this second cylinder is relatively long, which does not allow rapid rates to be obtained.
  • the object of the present invention is to avoid these drawbacks and to propose a press which is simple to produce, while making it possible to obtain faster rates than the presses used until now.
  • the press shown in FIG. 1 comprises a frame 1 supporting in particular a receptacle 2 forming a supply zone 3 for heterogeneous waste.
  • the feed zone 3 is open upwards and surmounted by a hopper 4 fitted with at least one gland, not shown, making it possible to introduce the waste into said feed zone 3.
  • This supply zone 3 has two opposite lateral openings 5 and 6 of section adapted to that of a compression piston 7 of a jack 8, for example hydraulic, supported by the frame 1.
  • the piston 7 is movable between the opening 5 and a position located beyond the other opening 6 of the supply zone 3.
  • the opening 6 of the supply zone 3 opens into a pressing chamber 9 coaxial with this supply zone 3 and of section equal to that of the piston 7.
  • This pressing chamber 9 has an annular shape and has two opposite lateral openings 10 and 11.
  • the pressing chamber 9 internally comprises a jacket 12 pierced with a multitude of small calibrated passages 12a bringing the interior of said pressing chamber 9 into communication with means for recovering the liquid phase by means of a chute 13 .
  • the pressing chamber 9 communicates via the outlet orifice 11 with a discharge chamber 14 of the solid phase of the waste.
  • the jacket 12 of the pressing chamber 9 is provided on the side of the outlet orifice 11 with an annular flange 12b (Fig. 2) externally forming a continuous contact surface.
  • this evacuation chamber 14 is mounted a member movable transversely relative to the axis of the pressing chamber 9.
  • This movable member is constituted by a slide 15 of parallelepiped shape complementary to the evacuation chamber 14 (Figs. 1 and 2).
  • the slide 15 moves under the action of a jack 16, for example hydraulic, between a first position for closing the outlet orifice 11 of the pressing chamber 9 and a second position for opening said orifice 11.
  • a jack 16 for example hydraulic
  • the angles of the vertical edges of the slide 15 are cut in the form of a square, the faces of which are provided with guide strips 15c (FIG. 2) intended to cooperate with the slides 17.
  • a clearance is provided between the slide 15 and the slides 17 to allow lateral movement of said slide against the outlet orifice 11 of the pressing chamber 9, as will be seen later.
  • the slide 15 comprises at the lower part of its faces in contact with the walls of the evacuation chamber 14, knives 18 allowing the walls of said chamber to be cleaned during the movement of said slide.
  • the slider 15 are arranged means for horizontally moving said slider along the axis of the pressing chamber 9 to apply the face 15a of said slider 15 against the annular flange 12b of the orifice 11 of the pressing chamber 9 during compression heterogeneous waste.
  • These horizontal displacement means are constituted for example by four jacks 20 integrated in the slide 15 (Fig. 4).
  • Each jack 20 comprises a piston 21 which can be moved in a direction parallel to the pressing chamber 9.
  • each jack 20 is mounted in a bore 22, one end of which opens onto the face 15b of the slide 15 opposite the face 15a opposite the outlet orifice 11 of the pressing chamber 9 and the other of which end is limited by a bottom 23.
  • the piston 21 has a length less than said bore 22 to form a working chamber 24 and has conventional sealing means 25 at the outer periphery.
  • the piston 21 is traversed by a through bore 26 in which is mounted a pin 27 comprising a first shoulder 28 intended to come to bear on the lateral face 21a of the piston 21.
  • the cylindrical part 29 of this shoulder 28 is slidably mounted in a central bore formed in a flange 30 housed in a recess 31 provided in the bore 22.
  • This flange 30 is held, for example, by screws 32 distributed over a circumference symmetrically.
  • the axis 27 comprises a second shoulder 33 having an annular section concentric with the annular section belonging to the first shoulder 28.
  • the space between the second shoulder 33 and the face of the flange 30, being opposite, is filled by an elastic return member of the piston 21.
  • This elastic return member is composed for example by Belleville washers 34.
  • the flange 30 divides the working chamber 24 into a main chamber 24a and into a secondary chamber 24b, said chambers 24a and 24b communicating with each other by at least one orifice 35 provided in said flange 30.
  • This arrangement allows the working fluid to act on the equivalent of the dynamic section of the piston 21.
  • the sealing of the working chamber 24 to the outside, passing through the bore 26, is ensured, for example, by an O-ring 36 housed in a suitable groove formed on the axis 27.
  • the supply of pressurized fluid to the working chambers 24 of all the jacks 20 is produced by a central duct 37 crossing the entire height of the slide 15 and positioned along the axis of symmetry of the distribution of said jacks 20.
  • This central duct 37 given its diameter and its secant position in the main chambers 24a of the jacks 20, ensures simultaneous distribution of the pressurized fluid in the different chambers.
  • the central duct 37 is connected by a threaded connection 38 screwed on the upper face of the slide 15, to a pipe 39 for supplying pressurized fluid.
  • a drain plug 40 is provided in the lower part of the central duct 37.
  • the Belleville washers 34 are mounted and held without constraint by means of a tightening nut 43 screwed onto the threaded end of the axle 27 located opposite the second shoulder 33.
  • the nut 43 is housed in a counterbore 44 dimensioned so as to completely retract said nut 43 inside the piston 21.
  • the operation of the press described above is as follows:
  • the heterogeneous waste to be treated is introduced into the hopper 4 and pushed into the feed zone 3 for example by a gland not shown.
  • the slide 15 is, under the action of the jack 16, placed in the low position opposite the outlet orifice 11 of the pressing chamber 9.
  • the pressurized fluid is admitted through the flexible piping 39 and the central duct 37 into the main chambers 24a and through the orifices 35, into the secondary chambers 24b of all of the cylinders 20.
  • the pistons 21 move in a direction parallel to the axis of the pressing chamber 9 and the faces 21b of these pistons come into contact with the wall of the discharge chamber 14 situated opposite the outlet orifice 11, which causes the Belleville washers 34 to be compressed and, by reaction, the lateral displacement of the slide 15 so that its face 15a directed towards the outlet orifice 11 comes to bear on the external face of the flange 12b and thus closes said outlet 11 (Fig. 2 and 5).
  • the seal at the orifice 11 is a seal of the metal-metal type obtained by virtue of the quality of the surfaces in contact and the plating force exerted by the pistons 21 of the jacks 20.
  • the liquid phase is expressed from this raw waste and is evacuated by the chute 13 through the calibrated passages 12a formed in the jacket 12 (Fig. 5).
  • the slide 15 in its downward movement serves as shears in the event of jamming of the solid parts and ensures the cleaning of the walls of the evacuation chamber 14.
  • the piston 7 When the solid parts have been removed, the piston 7 returns to its initial position for a new operating cycle similar to the previous one.
  • a variant of the horizontal displacement means of the slide 15 has been shown along the axis of the pressing chamber 9 for applying the face 15a of said slide against the annular flange 12b of the orifice 11 of the pressing chamber 9 during the compression of heterogeneous waste.
  • These horizontal displacement means of the slide 15 are constituted by a flat piston 50 sliding in a jacket formed by the slide 15 itself.
  • the flat piston 50 is slidably mounted in a bore 51 formed inside the slide 15, in the axis of the pressing chamber 9.
  • This bore 51 has one end which opens onto the face 15b of the slide 15 and another opposite end which is limited by a bottom 52 into which opens a bore 53 of smaller diameter.
  • the bore 53 also opens onto the face 15a of the slide 15.
  • this bore 53 is mounted, by means of a screw 54, an axis 55 which comprises a portion 55a of larger diameter disposed in the bore 51.
  • the end of the bore 53 emerging at the level of the face 15a of the slide 15, is closed by a plate 56.
  • the piston 50 has an internal bore 57 of larger diameter than the part 55a of the axis 55.
  • a sliding ring 58 On this part 55a of the axis 55 is mounted a sliding ring 58 on which is arranged a hemispherical element 59 which is intended to cooperate with another hemispherical element 60 of complementary shape, fixed in the bore 57 of the piston 50.
  • the two hemispherical elements 59 and 60 therefore form a ball joint.
  • the hemispherical element 60 is held in the bore 57, on one side by a flange 61 and, on the other side, by a spacer 62 on which a spring washer 63 is applied.
  • the spring washer 63 is mounted on a spacer 64 held on the end of the axle 55 by an immobilizing flange 65 and a screw 66.
  • the piston 50 provides with the bottom 52 of the bore 51 a working chamber 67 at which the conduit 37 for supplying pressurized fluid opens.
  • adjustable stops 68 are provided in this room.
  • the contact zone 69 between the piston 50 and the bore 51 is formed by a hemispherical bearing comprising a seal 70.
  • the seal is completed by a scraper seal 71 fixed on the face 15b of the slide 15 and which is applied to the lateral face of the piston 50.
  • This system has the advantage of being able to be used to close the outlet orifice of the pressing chamber by means of the slide, at least one jack being integrated in said slide and having a short stroke, of the order of 5 mm and whose oil capacity is reduced, thus obtaining a faster response time and increasing the waste treatment rates.

Abstract

La presse comporte un bâti (1), une zone (3) d'alimentation recevant les déchets à traiter, une chambre (9) de pressage comprenant un orifice d'entrée (10) et un orifice de sortie (11) et une chambre (14) d'évacuation de la phase solide. La presse comporte également un organe (15) mobile transversalement par rapport à l'axe de la chambre (9) de pressage entre une première position d'obturation de l'orifice de sortie (11) et une seconde position d'ouverture dudit orifice de sortie (11), comprenant des moyens (20) de déplacement horizontal dudit organe mobile selon l'axe de la chambre (9) de pressage pour appliquer la face dudit organe mobile en regard de l'orifice de sortie (11) contre ledit orifice de sortie pendant la compression des déchets hétérogènes. <IMAGE>The press comprises a frame (1), a feed zone (3) receiving the waste to be treated, a pressing chamber (9) comprising an inlet port (10) and an outlet port (11) and a chamber (14) evacuation of the solid phase. The press also comprises a member (15) movable transversely relative to the axis of the pressing chamber (9) between a first position for closing the outlet orifice (11) and a second position for opening said orifice. outlet (11), comprising means (20) for horizontal displacement of said movable member along the axis of the pressing chamber (9) to apply the face of said movable member opposite the outlet orifice (11) against said outlet port during compression of heterogeneous waste. <IMAGE>

Description

La présente invention a pour objet une presse de compactage et de traitement de déchets hétérogènes.The present invention relates to a compacting press and treatment of heterogeneous waste.

Depuis plusieurs années, le volume grandissant des déchets et notamment des ordures ménagères oblige à rechercher des solutions permettant de traiter et de valoriser ces déchets.For several years now, the growing volume of waste and in particular household waste has forced us to seek solutions that make it possible to process and recover this waste.

On a déjà pensé à utiliser comme combustible de tels déchets, mais la présence dans ceux-ci d'une forte teneur en eau et de produits incombustibles ne permet de produire qu'une énergie trop faible.It has already been thought of using such waste as fuel, but the presence in it of a high water content and of non-combustible products makes it possible to produce only too low energy.

En effet, de tels déchets sont constitués par une phase liquide ne contenant que des produits organiques et par une phase solide contenant des matières métalliques, minérales et synthétiques.Indeed, such waste is constituted by a liquid phase containing only organic products and by a solid phase containing metallic, mineral and synthetic materials.

Une solution consiste à presser ces déchets ce qui permet d'obtenir, d'une part, des résidus suffisamment secs pour constituer un combustible présentant un pouvoir calorifique acceptable et, d'autre part, des substances fluides utilisables selon leur nature, en agriculture comme produits d'amendement des sols ou comme matières premières à partir desquelles on peut extraire des produits chimiques.One solution consists in pressing this waste which makes it possible, on the one hand, to obtain residues sufficiently dry to constitute a fuel having an acceptable calorific value and, on the other hand, fluid substances usable according to their nature, in agriculture as soil conditioners or as raw materials from which chemicals can be extracted.

On connait déjà des dispositifs permettant de comprimer ces déchets qui sont le plus souvent constitués par des presses hydrauliques comportant une zone d'alimentation recevant les déchets à traiter, une chambre de pressage reliée à des moyens de récupération de la phase liquide et une chambre d'évacuation de la phase solide située en aval de ladite chambre de pressage.Devices are already known which make it possible to compress this waste, which most often consists of hydraulic presses comprising a feed zone receiving the waste to be treated, a pressing chamber connected to means for recovering the liquid phase and a pressure chamber. 'evacuation of the solid phase located downstream of said pressing chamber.

Cette chambre de pressage comprend un orifice d'entrée, un orifice de sortie et possède une section égale à celle d'un piston d'un premier vérin.This pressing chamber includes an inlet port, an outlet port and has a section equal to that of a piston of a first cylinder.

La paroi de ladite chambre comporte une multitude de perforations débouchant dans un canal d'évacuation de la phase liquide extraite par compression des déchets.The wall of said chamber has a multitude of perforations opening into a channel for discharging the liquid phase extracted by compression of the waste.

L'orifice de sortie de la chambre de pressage est généralement obturé par un bouchon portée par une tige d'un second vérin opposé au premier.The outlet of the pressing chamber is generally closed by a plug carried by a rod of a second cylinder opposite the first.

Les pistons des deux vérins sont mobiles alternativement entre, d'une part, une première position de compression des déchets et d'évacuation de la phase liquide lors de laquelle le piston du premier vérin pénètre dans la chambre de pressage et le piston du second vérin obture l'orifice de sortie de ladite chambre et, d'autre par, une seconde position d'évacuation de la phase solide lors de laquelle le piston du premier vérin continue sa course et le piston du deuxième vérin libère l'orifice de sortie de ladite chambre de pressage.The pistons of the two cylinders are alternately movable between, on the one hand, a first position for compressing the waste and for discharging the liquid phase during which the piston of the first cylinder enters the pressing chamber and the piston of the second cylinder closes the outlet orifice of said chamber and, on the other hand, a second position for evacuating the solid phase during which the piston of the first jack continues its stroke and the piston of the second jack releases the outlet of said pressing chamber.

Mais ce type de presses présente des inconvénients et notamment pose des problèmes dûs au maintien de l'étanchéité entre la chambre de pressage et la chambre d'évacuation de la phase solide.However, this type of press has drawbacks and in particular poses problems due to the maintenance of the seal between the pressing chamber and the solid phase discharge chamber.

En effet, compte tenu des efforts importants engendrés au moment du pressage des déchets, l'étanchéité n'est pas totalement réalisée au niveau de l'orifice de sortie de la chambre de pressage par le piston du second vérin, si bien que des fuites de liquide peuvent se produire et pénétrer dans la chambre d'évacuation de la phase solide.Indeed, taking into account the significant efforts generated at the time of pressing of the waste, the sealing is not completely achieved at the outlet orifice of the pressing chamber by the piston of the second cylinder, so that leaks liquid can occur and enter the evacuation chamber of the solid phase.

Par ailleurs, la course du piston du second vérin est relativement importante. Cette course correspond à une épaisseur de la phase solide soit, pour un produit incompressible, l'équivalent de la longueur de la filière ce qui nécessite donc une grande capacité d'huile pour actionner ce vérin. Compte tenu de cette course, le temps de réponse de ce second vérin est relativement long ce qui ne permet pas d'obtenir des cadences rapides.Furthermore, the piston stroke of the second cylinder is relatively large. This stroke corresponds to a thickness of the solid phase, that is, for an incompressible product, the equivalent of the length of the die which therefore requires a large oil capacity to actuate this cylinder. Given this stroke, the response time of this second cylinder is relatively long, which does not allow rapid rates to be obtained.

Le but de la présente invention est d'éviter ces inconvénients et de proposer une presse qui soit simple à réaliser, tout en permettant d'obtenir des cadences plus rapides que les presses utilisées jusqu'à présent.The object of the present invention is to avoid these drawbacks and to propose a press which is simple to produce, while making it possible to obtain faster rates than the presses used until now.

La présente invention a donc pour objet une presse de compactage et de traitement de déchets hétérogènes comprenant une phase solide et une phase liquide, ladite presse comportant :

  • un bâti,
  • une zone d'alimentation recevant les déchets hétérogènes à traiter, ouverte vers le haut et présentant deux ouvertures latérales opposées de section adaptée à celle d'un piston mobile entre l'une des ouvertures de la zone d'alimentation et une position située au-delà de l'autre ouverture de ladite zone d'alimentation,
  • une chambre de pressage comprenant un orifice d'entrée et un orifice de sortie, opposés et disposés coaxialement par rapport à la zone d'alimentation, ladite chambre ayant une section égale à celle du piston de compression et comportant des passages calibrés reliant ladite chambre de pressage à des moyens de récupération de la phase liquide,
  • et une chambre d'évacuation de la phase solide située en aval de la chambre de pressage, caractérisée en ce qu'elle comporte un organe mobile transversalement par rapport à l'axe de la chambre de pressage entre une première position d'obturation de l'orifice de sortie de ladite chambre de pressage, pendant la compression des déchets hétérogènes, et une seconde position d'ouverture dudit orifice pour l'extraction de la phase solide de ladite chambre de pressage, comprenant des moyens de déplacement horizontal dudit organe mobile selon l'axe de la chambre de pressage pour appliquer la face dudit organe mobile en regard de l'orifice de sortie de la chambre de pressage contre ledit orifice de sortie pendant la compression des déchets hétérogènes.
The present invention therefore relates to a press for compacting and treating heterogeneous waste comprising a solid phase and a liquid phase, said press comprising:
  • a frame,
  • a feed zone receiving the heterogeneous waste to be treated, open upwards and having two opposite lateral openings of cross section adapted to that of a piston movable between one of the openings of the feed zone and a position located above beyond the other opening of said feeding zone,
  • a pressing chamber comprising an inlet and an outlet, opposite and arranged coaxially with respect to the supply zone, said chamber having a section equal to that of the compression piston and having calibrated passages connecting said chamber pressing to means for recovering the liquid phase,
  • and a solid phase discharge chamber located downstream of the pressing chamber, characterized in that it comprises a member movable transversely relative to the axis of the pressing chamber between a first position for closing off the the outlet orifice of said pressing chamber, during the compression of heterogeneous waste, and a second position of opening of said orifice for the extraction of the solid phase from said pressing chamber, comprising means for horizontal displacement of said movable member along the axis of the pressing chamber to apply the face of said movable member opposite the outlet of the pressing chamber against said outlet orifice during the compression of heterogeneous waste.

Selon d'autres caractéristiques :

  • l'organe mobile est formé par un coulisseau commandé par un vérin et guidé par des glissières solidaires du bâti,
  • les moyens de déplacement horizontal sont formés par au moins un vérin intégré dans ledit coulisseau et dont le piston se déplace selon une direction parallèle à l'axe de la chambre de pressage et prend appui sur la paroi de la chambre d'évacuation opposée à l'orifice de sortie de la chambre de pressage,
  • le piston du ou des vérins est monté dans un alésage dont une extrémité débouche sur la face du coulisseau opposée à la face en regard de l'orifice de sortie de la chambre de pressage et dont l'autre extrémité est limitée par un fond, ledit alésage étant ménagé dans ledit coulisseau,
  • le piston a une longueur inférieure audit alésage pour former une chambre de travail du vérin correspondant,
  • le piston du ou des vérins est traversé par un axe comportant un premier épaulement en appui sur la face latérale du piston, opposée à la face latérale destinée à entrer en contact avec la paroi de la chambre d'évacuation et un second épaulement en appui sur un organe élastique de rappel dudit piston, ledit organe de rappel étant lui-même en appui sur une bride montée dans ledit alésage correspondant,
  • la bride divise la chambre de travail en une chambre principale et en une chambre secondaire, lesdites chambres communiquant entres elles par au moins un orifice prévu dans ladite bride,
  • le coulisseau comporte un canal de distribution unique pour alimenter en fluide sous pression simultanément les chambres de travail du ou des vérins,
  • les moyens de déplacement horizontal sont formés par un piston plat coulissant dans une chemise formée par le coulisseau.
According to other characteristics:
  • the movable member is formed by a slide controlled by a jack and guided by slides secured to the frame,
  • the horizontal displacement means are formed by at least one jack integrated in said slide and the piston of which moves in a direction parallel to the axis of the pressing chamber and bears on the wall of the evacuation chamber opposite to the '' outlet of the pressing chamber,
  • the piston of the jack (s) is mounted in a bore, one end of which opens onto the face of the slide opposite the face opposite the outlet orifice of the pressing chamber and the other end of which is limited by a bottom, said bore being formed in said slide,
  • the piston has a length less than said bore to form a working chamber of the corresponding jack,
  • the piston of the actuator (s) is crossed by an axis comprising a first shoulder bearing on the lateral face of the piston, opposite the lateral face intended to come into contact with the wall of the evacuation chamber and a second shoulder bearing on an elastic return member of said piston, said return member itself being supported on a flange mounted in said corresponding bore,
  • the flange divides the working chamber into a main chamber and into a secondary chamber, said chambers communicating with each other by at least one orifice provided in said flange,
  • the slide comprises a single distribution channel for simultaneously supplying pressurized fluid to the working chambers of the jack (s),
  • the horizontal displacement means are formed by a flat piston sliding in a jacket formed by the slide.

D'autres caractéristiques et avantages de l'invention apparaitront au cours de la description qui va suivre, faite se référant aux dessins annexés donnés uniquement à titre d'exemple et sur lesquels :

  • la Fig. 1 est une vue schématique en coupe longitudinale d'une presse réalisée conformément à l'invention,
  • la Fig. 2 est une vue de dessus en coupe et à plus grande échelle selon la ligne 2-2 de la Fig. 1,
  • la Fig. 3 est une vue en coupe selon la ligne 3-3 de la Fig. 2,
  • la Fig. 4 est une vue en coupe selon la ligne 4-4 de la Fig. 1,
  • les Figs 5 à 7 sont des vues schématiques en coupe montrant les différentes étapes de fonctionnement de la presse selon l'invention,
  • la Fig. 8 est une vue en coupe d'une variante des moyens de déplacement de l'organe mobile d'obturation de l'orifice de sortie de la chambre de pressage.
Other characteristics and advantages of the invention will appear during the description which follows, made with reference to the appended drawings given solely by way of example and in which:
  • Fig. 1 is a schematic view in longitudinal section of a press produced in accordance with the invention,
  • Fig. 2 is a top view in section and on a larger scale along line 2-2 of FIG. 1,
  • Fig. 3 is a sectional view along line 3-3 of FIG. 2,
  • Fig. 4 is a sectional view along line 4-4 of FIG. 1,
  • FIGS. 5 to 7 are schematic sectional views showing the different stages of operation of the press according to the invention,
  • Fig. 8 is a sectional view of a variant of the means for moving the movable member closing the outlet orifice of the pressing chamber.

La presse représentée à la Fig. 1 comporte un bâti 1 supportant notamment un réceptacle 2 formant une zone d'alimentation 3 des déchets hétérogènes.The press shown in FIG. 1 comprises a frame 1 supporting in particular a receptacle 2 forming a supply zone 3 for heterogeneous waste.

A cet effet, la zone d'alimentation 3 est ouverte vers le haut et surmontée par une trémie 4 équipée d'au moins un fouloir, non représenté, permettant d'introduire les déchets dans ladite zone d'alimentation 3.To this end, the feed zone 3 is open upwards and surmounted by a hopper 4 fitted with at least one gland, not shown, making it possible to introduce the waste into said feed zone 3.

Cette zone d'alimentation 3 présente deux ouvertures latérales opposées 5 et 6 de section adaptée à celle d'un piston de compression 7 d'un vérin 8, par exemple hydraulique, supporté par le bâti 1.This supply zone 3 has two opposite lateral openings 5 and 6 of section adapted to that of a compression piston 7 of a jack 8, for example hydraulic, supported by the frame 1.

Le piston 7 est mobile entre l'ouverture 5 et une position située au-delà de l'autre ouverture 6 de la zone d'alimentation 3.The piston 7 is movable between the opening 5 and a position located beyond the other opening 6 of the supply zone 3.

L'ouverture 6 de la zone d'alimentation 3 débouche dans une chambre de pressage 9 coaxiale à cette zone d'alimentation 3 et de section égale à celle du piston 7.The opening 6 of the supply zone 3 opens into a pressing chamber 9 coaxial with this supply zone 3 and of section equal to that of the piston 7.

Cette chambre de pressage 9 a une forme annulaire et comporte deux ouvertures latérales opposées 10 et 11.This pressing chamber 9 has an annular shape and has two opposite lateral openings 10 and 11.

La chambre de pressage 9 comporte intérieurement une chemise 12 percée d'une multitude de petits passages calibrés 12a mettant en communication l'intérieur de ladite chambre de pressage 9 avec des moyens de récupération de la phase liquide par l'intermédiaire d'une goulotte 13.The pressing chamber 9 internally comprises a jacket 12 pierced with a multitude of small calibrated passages 12a bringing the interior of said pressing chamber 9 into communication with means for recovering the liquid phase by means of a chute 13 .

La chambre de pressage 9 communique par l'orifice de sortie 11 avec une chambre 14 d'évacuation de la phase solide des déchets.The pressing chamber 9 communicates via the outlet orifice 11 with a discharge chamber 14 of the solid phase of the waste.

La chemise 12 de la chambre de pressage 9 est munie du côté de l'orifice de sortie 11 d'une collerette annulaire 12b (Fig. 2) formant extérieurement une surface de contact continue.The jacket 12 of the pressing chamber 9 is provided on the side of the outlet orifice 11 with an annular flange 12b (Fig. 2) externally forming a continuous contact surface.

Dans cette chambre 14 d'évacuation est monté un organe mobile transversalement par rapport à l'axe de la chambre de pressage 9.In this evacuation chamber 14 is mounted a member movable transversely relative to the axis of the pressing chamber 9.

Cet organe mobile est constitué par un coulisseau 15 de forme parallélépipédique complémentaire à la chambre d'évacuation 14 (Figs. 1 et 2).This movable member is constituted by a slide 15 of parallelepiped shape complementary to the evacuation chamber 14 (Figs. 1 and 2).

Le coulisseau 15 se déplace sous l'action d'un vérin 16, par exemple hydraulique, entre une première position d'obturation de l'orifice de sortie 11 de la chambre de pressage 9 et une seconde position d'ouverture dudit orifice 11.The slide 15 moves under the action of a jack 16, for example hydraulic, between a first position for closing the outlet orifice 11 of the pressing chamber 9 and a second position for opening said orifice 11.

Au cours de son déplacement, le coulisseau 15 est guidé par des glissières 17 solidaires du bâti 1.During its movement, the slide 15 is guided by slides 17 secured to the frame 1.

A cet effet, les angles des arêtes verticales du coulisseau 15 sont découpées en forme d'équerre dont les faces sont pourvues de réglettes de guidage 15c (Fig. 2) destinées à coopérer avec les glissières 17.To this end, the angles of the vertical edges of the slide 15 are cut in the form of a square, the faces of which are provided with guide strips 15c (FIG. 2) intended to cooperate with the slides 17.

Un jeu est prévu entre le coulisseau 15 et les glissières 17 pour autoriser un déplacement latéral dudit coulisseau contre l'orifice de sortie 11 de la chambre 9 de pressage, comme on le verra ultérieurement.A clearance is provided between the slide 15 and the slides 17 to allow lateral movement of said slide against the outlet orifice 11 of the pressing chamber 9, as will be seen later.

D'autre part, le coulisseau 15 comporte à la partie inférieure de ses faces en contact avec les parois de la chambre 14 d'évacuation, des couteaux 18 permettant le nettoyage des parois de ladite chambre au cours du déplacement dudit coulisseau.On the other hand, the slide 15 comprises at the lower part of its faces in contact with the walls of the evacuation chamber 14, knives 18 allowing the walls of said chamber to be cleaned during the movement of said slide.

Dans le coulisseau 15 sont disposés des moyens de déplacement horizontal dudit coulisseau selon l'axe de la chambre de pressage 9 pour appliquer la face 15a dudit coulisseau 15 contre la collerette annulaire 12b de l'orifice 11 de la chambre de pressage 9 pendant la compression des déchets hétérogènes.In the slider 15 are arranged means for horizontally moving said slider along the axis of the pressing chamber 9 to apply the face 15a of said slider 15 against the annular flange 12b of the orifice 11 of the pressing chamber 9 during compression heterogeneous waste.

Ces moyens de déplacement horizontal sont constitués par exemple par quatre vérins 20 intégrés dans le coulisseau 15 (Fig. 4).These horizontal displacement means are constituted for example by four jacks 20 integrated in the slide 15 (Fig. 4).

Chaque vérin 20 comporte un piston 21 déplaçable selon une direction parallèle à la chambre de pressage 9.Each jack 20 comprises a piston 21 which can be moved in a direction parallel to the pressing chamber 9.

Comme représenté plus en détails sur la Fig. 3, le piston 21 de chaque vérin 20 est monté dans un alésage 22 dont une extrémité débouche sur la face 15b du coulisseau 15 opposée la face 15a en regard de l'orifice de sortie 11 de la chambre de pressage 9 et dont l'autre extrémité est limitée par un fond 23.As shown in more detail in FIG. 3, the piston 21 of each jack 20 is mounted in a bore 22, one end of which opens onto the face 15b of the slide 15 opposite the face 15a opposite the outlet orifice 11 of the pressing chamber 9 and the other of which end is limited by a bottom 23.

Le piston 21 a une longueur inférieure audit alésage 22 pour former une chambre de travail 24 et comporte en périphérie extérieure des moyens d'étanchéité classiques 25.The piston 21 has a length less than said bore 22 to form a working chamber 24 and has conventional sealing means 25 at the outer periphery.

Par ailleurs, le piston 21 est traversé par un alésage débouchant 26 dans lequel est monté un axe 27 comportant un premier épaulement 28 destiné à venir en appui sur la face latérale 21a du piston 21.Furthermore, the piston 21 is traversed by a through bore 26 in which is mounted a pin 27 comprising a first shoulder 28 intended to come to bear on the lateral face 21a of the piston 21.

La partie cylindrique 29 de cet épaulement 28 est montée coulissante dans un alésage central ménagé dans une bride 30 logée dans un évidement 31 prévu dans l'alésage 22.The cylindrical part 29 of this shoulder 28 is slidably mounted in a central bore formed in a flange 30 housed in a recess 31 provided in the bore 22.

Cette bride 30 est maintenue, par exemple, par des vis 32 réparties sur une circonférence de façon symétrique.This flange 30 is held, for example, by screws 32 distributed over a circumference symmetrically.

Dans le prolongement de la partie cylindrique 29 du premier épaulement 28, l'axe 27 comporte un second épaulement 33 présentant une section annulaire concentrique à la section annulaire appartenant au premier épaulement 28.In the extension of the cylindrical part 29 of the first shoulder 28, the axis 27 comprises a second shoulder 33 having an annular section concentric with the annular section belonging to the first shoulder 28.

L'espace situé entre le second épaulement 33 et la face de la bride 30, se trouvant en vis à vis, est comblé par un organe élastique de rappel du piston 21.The space between the second shoulder 33 and the face of the flange 30, being opposite, is filled by an elastic return member of the piston 21.

Cet organe élastique de rappel est composé par exemple par des rondelles Belleville 34.This elastic return member is composed for example by Belleville washers 34.

La bride 30 divise la chambre de travail 24 en une chambre principale 24a et en une chambre secondaire 24b, lesdites chambres 24a et 24b communiquant entres elles par au moins un orifice 35 prévu dans ladite bride 30.The flange 30 divides the working chamber 24 into a main chamber 24a and into a secondary chamber 24b, said chambers 24a and 24b communicating with each other by at least one orifice 35 provided in said flange 30.

Cet aménagement permet au fluide moteur d'agir sur l'équivalent de la section dynamique du piston 21.This arrangement allows the working fluid to act on the equivalent of the dynamic section of the piston 21.

L'étanchéité de la chambre de travail 24 vers l'extérieur, en passant par l'alésage 26, est assurée, par exemple, par un joint 36 torique logé dans une gorge adéquate ménagée sur l'axe 27.The sealing of the working chamber 24 to the outside, passing through the bore 26, is ensured, for example, by an O-ring 36 housed in a suitable groove formed on the axis 27.

L'alimentation en fluide sous pression des chambres de travail 24 de l'ensemble des vérins 20 est réalisée par un conduit central 37 traversant toute la hauteur du coulisseau 15 et positionné suivant l'axe de symétrie de la répartition desdits vérins 20.The supply of pressurized fluid to the working chambers 24 of all the jacks 20 is produced by a central duct 37 crossing the entire height of the slide 15 and positioned along the axis of symmetry of the distribution of said jacks 20.

Ce conduit central 37, compte tenu de son diamètre et de sa position sécante aux chambres principales 24a des vérins 20, assure une distribution simultanée du fluide sous pression dans les différentes chambres.This central duct 37, given its diameter and its secant position in the main chambers 24a of the jacks 20, ensures simultaneous distribution of the pressurized fluid in the different chambers.

Le conduit central 37 est raccordé par une connexion filetée 38 vissée sur la face supérieure du coulisseau 15, à une tuyauterie 39 d'alimentation en fluide sous pression.The central duct 37 is connected by a threaded connection 38 screwed on the upper face of the slide 15, to a pipe 39 for supplying pressurized fluid.

Un bouchon de vidange 40 est prévu en partie basse du conduit central 37.A drain plug 40 is provided in the lower part of the central duct 37.

Sur la face supérieure du coulisseau 15 sont également prévus deux bouchons de purge 41 qui communiquent, par des conduits 42, avec les chambres de travail 24 des vérins 20 disposés dans le même plan vertical.On the upper face of the slide 15 are also provided two purge plugs 41 which communicate, through conduits 42, with the working chambers 24 of the jacks 20 arranged in the same vertical plane.

Les rondelles Belleville 34 sont montées et maintenues sans contrainte par l'intermédiaire d'un écrou de serrage 43 vissé sur l'extrémité filetée de l'axe 27 située à l'opposé du second épaulement 33.The Belleville washers 34 are mounted and held without constraint by means of a tightening nut 43 screwed onto the threaded end of the axle 27 located opposite the second shoulder 33.

L'écrou 43 est logé dans un lamage 44 dimensionné de façon à escamoter totalement ledit écrou 43 à l'intérieur du piston 21.The nut 43 is housed in a counterbore 44 dimensioned so as to completely retract said nut 43 inside the piston 21.

Le fonctionnement de la presse décrite ci-dessus est le suivant :
   Les déchets hétérogènes à traiter sont introduits dans la trémie 4 et poussés dans la zone d'alimentation 3 par exemple par un fouloir non représenté.The operation of the press described above is as follows:
The heterogeneous waste to be treated is introduced into the hopper 4 and pushed into the feed zone 3 for example by a gland not shown.

Au début du cycle du traitement de manière à permettre l'introduction des déchets dans la zone d'alimentation 3, le piston 7 est en position dégagée comme représenté sur la Fig. 1.At the start of the treatment cycle so as to allow the introduction of the waste into the feed zone 3, the piston 7 is in the released position as shown in FIG. 1.

Le coulisseau 15 est, sous l'action du vérin 16, placé en position basse en face de l'orifice de sortie 11 de la chambre de pressage 9.The slide 15 is, under the action of the jack 16, placed in the low position opposite the outlet orifice 11 of the pressing chamber 9.

Le fluide sous pression est admis par la tuyauterie souple 39 et le conduit central 37 dans les chambres principales 24a et par les orifices 35, dans les chambres secondaires 24b de l'ensemble des vérins 20.The pressurized fluid is admitted through the flexible piping 39 and the central duct 37 into the main chambers 24a and through the orifices 35, into the secondary chambers 24b of all of the cylinders 20.

Les pistons 21 se déplacent dans une direction parallèle à l'axe de la chambre de pressage 9 et les faces 21b de ces pistons entrent en contact avec la paroi de la chambre d'évacuation 14 située à l'opposé de l'orifice de sortie 11, ce qui provoque la compression des rondelles Belleville 34 et, par réaction, le déplacement latéral du coulisseau 15 de telle sorte que sa face 15a dirigée vers l'orifice de sortie 11 vienne s'appuyer sur la face extérieure de la collerette 12b et ainsi obture ledit orifice de sortie 11 (Fig. 2 et 5).The pistons 21 move in a direction parallel to the axis of the pressing chamber 9 and the faces 21b of these pistons come into contact with the wall of the discharge chamber 14 situated opposite the outlet orifice 11, which causes the Belleville washers 34 to be compressed and, by reaction, the lateral displacement of the slide 15 so that its face 15a directed towards the outlet orifice 11 comes to bear on the external face of the flange 12b and thus closes said outlet 11 (Fig. 2 and 5).

L'étanchéité au niveau de l'orifice 11 est une étanchéité du type métal-métal obtenue grâce à la qualité des surfaces en contact et à la force de plaquage excercée par les pistons 21 des vérins 20.The seal at the orifice 11 is a seal of the metal-metal type obtained by virtue of the quality of the surfaces in contact and the plating force exerted by the pistons 21 of the jacks 20.

Ensuite, le piston 7 commandé par le vérin 8, se déplace vers la chambre de pressage 9 en poussant les déchets contenus dans la zone d'alimentation 3 vers ladite chambre 9.Then, the piston 7 controlled by the jack 8, moves towards the pressing chamber 9 by pushing the waste contained in the feed zone 3 towards said chamber 9.

Le piston 7, en poursuivant son avance, pousse les déchets dans la chambre de pressage 9 jusqu'à l'obtention d'une forte pression et les comprime dans celle-ci contre le coulisseau 15.The piston 7, continuing its advance, pushes the waste into the pressing chamber 9 until a high pressure is obtained and compresses it therein against the slide 15.

Lors de la compression des déchets dans la chambre de pressage 9, la phase liquide est exprimée de ces déchets bruts et est évacuée par la goulotte 13 à travers les passages calibrés 12a ménagés dans la chemise 12 (Fig. 5).During the compression of the waste in the pressing chamber 9, the liquid phase is expressed from this raw waste and is evacuated by the chute 13 through the calibrated passages 12a formed in the jacket 12 (Fig. 5).

Le pressage des déchets étant terminé, l'alimentation en fluide sous pression est arrétée et les pistons 21 des vérins 20 sont ramenés dans leur position initiale sous l'effet de la force de rappel exercée par les rondelles Belleville 34 de chaque vérin, libérant ainsi le coulisseau 15 et ce coulisseau 15 est remonté sous l'action du vérin 16 afin de libérer l'orifice de sortie 11 de la chambre de pressage 9.The pressing of the waste being finished, the supply of pressurized fluid is stopped and the pistons 21 of the jacks 20 are returned to their initial position under the effect of the restoring force exerted by the Belleville washers 34 of each jack, thereby releasing the slide 15 and this slide 15 is raised under the action of the jack 16 in order to release the outlet orifice 11 from the pressing chamber 9.

Par avance du piston 7 dans la chambre de pressage 9, les parties solides et sèches des déchets sont sorties de ladite chambre de pressage (Fig. 6) et ensuite, par la descente du coulisseau 15 poussées dans la chambre 14 d'évacuation (Fig. 7).In advance of the piston 7 in the pressing chamber 9, the solid and dry parts of the waste are removed from said pressing chamber (Fig. 6) and then, by the descent of the slide 15 pushed into the evacuation chamber 14 (Fig 7).

Grâce aux couteaux 18, le coulisseau 15 dans son mouvement de descente sert de cisaille dans l'éventualité d'un coincement des parties solides et assure le nettoyage des parois de la chambre 14 d'évacuation.Thanks to the knives 18, the slide 15 in its downward movement serves as shears in the event of jamming of the solid parts and ensures the cleaning of the walls of the evacuation chamber 14.

Lorsque les parties solides ont été évacuées le piston 7 revient à sa position initiale pour un nouveau cycle de fonctionnement semblable au précédent.When the solid parts have been removed, the piston 7 returns to its initial position for a new operating cycle similar to the previous one.

Sur la Fig. 8, on a représenté une variante des moyens de déplacement horizontal du coulisseau 15 selon l'axe de la chambre de pressage 9 pour appliquer la face 15a dudit coulisseau contre la collerette annulaire 12b de l'orifice 11 de la chambre de pressage 9 pendant la compression des déchets hétérogènes.In Fig. 8, a variant of the horizontal displacement means of the slide 15 has been shown along the axis of the pressing chamber 9 for applying the face 15a of said slide against the annular flange 12b of the orifice 11 of the pressing chamber 9 during the compression of heterogeneous waste.

Ces moyens de déplacement horizontal du coulisseau 15 sont constitués par un piston plat 50 coulissant dans une chemise formée par le coulisseau 15 lui-même.These horizontal displacement means of the slide 15 are constituted by a flat piston 50 sliding in a jacket formed by the slide 15 itself.

A cet effet, le piston plat 50 est monté coulissant dans un alésage 51 ménagé à l'intérieur du coulisseau 15, dans l'axe de la chambre de pressage 9.For this purpose, the flat piston 50 is slidably mounted in a bore 51 formed inside the slide 15, in the axis of the pressing chamber 9.

Cet alésage 51 comporte une extrémité qui débouche sur la face 15b du coulisseau 15 et une autre extrémité opposée qui est limitée par un fond 52 dans lequel débouche un alésage 53 de plus faible diamètre.This bore 51 has one end which opens onto the face 15b of the slide 15 and another opposite end which is limited by a bottom 52 into which opens a bore 53 of smaller diameter.

L'alésage 53 débouche également sur la face 15a du coulisseau 15.The bore 53 also opens onto the face 15a of the slide 15.

Dans cet alésage 53 est monté, par l'intermédiaire d'une vis 54, un axe 55 qui comporte une partie 55a de plus grand diamètre disposée dans l'alésage 51.In this bore 53 is mounted, by means of a screw 54, an axis 55 which comprises a portion 55a of larger diameter disposed in the bore 51.

L'extrémité de l'alésage 53 débouchant au niveau de la face 15a du coulisseau 15, est obturée par une plaque 56.The end of the bore 53 emerging at the level of the face 15a of the slide 15, is closed by a plate 56.

Le piston 50 comporte un alésage interne 57 de plus grand diamètre que la partie 55a de l'axe 55.The piston 50 has an internal bore 57 of larger diameter than the part 55a of the axis 55.

Sur cette partie 55a de l'axe 55 est montée une bague de glissement 58 sur laquelle est disposé un élément hémisphérique 59 qui est destiné à coopérer avec un autre élément hémisphérique 60 de forme complémentaire, fixé dans l'alésage 57 du piston 50.On this part 55a of the axis 55 is mounted a sliding ring 58 on which is arranged a hemispherical element 59 which is intended to cooperate with another hemispherical element 60 of complementary shape, fixed in the bore 57 of the piston 50.

Les deux éléments hémisphériques 59 et 60 forment donc une rotule.The two hemispherical elements 59 and 60 therefore form a ball joint.

L'élément hémisphérique 60 est maintenu dans l'alésage 57, d'un côté par une bride 61 et, de l'autre côté, par une entretoise 62 sur laquelle s'applique une rondelle ressort 63.The hemispherical element 60 is held in the bore 57, on one side by a flange 61 and, on the other side, by a spacer 62 on which a spring washer 63 is applied.

La rondelle ressort 63 est montée sur une entretoise 64 maintenue sur l'extrémité de l'axe 55 par une bride d'immobilisation 65 et une vis 66.The spring washer 63 is mounted on a spacer 64 held on the end of the axle 55 by an immobilizing flange 65 and a screw 66.

Le piston 50 ménage avec le fond 52 de l'alésage 51 une chambre de travail 67 au niveau de laquelle débouche le conduit 37 d'alimentation en fluide sous pression.The piston 50 provides with the bottom 52 of the bore 51 a working chamber 67 at which the conduit 37 for supplying pressurized fluid opens.

Afin de limiter la course du piston 50 vers le fond de la chambre 67, sous l'effet de la rondelle ressort 64, des butées réglables 68 sont prévues dans cette chambre.In order to limit the stroke of the piston 50 towards the bottom of the chamber 67, under the effect of the spring washer 64, adjustable stops 68 are provided in this room.

D'autre part, la zone de contact 69 entre le piston 50 et l'alésage 51 est formée par une portée hémisphérique comportant un joint d'étanchéité 70. L'étanchéité est complétée par un joint racleur 71 fixé sur la face 15b du coulisseau 15 et qui vient s'appliquer sur la face latérale du piston 50.On the other hand, the contact zone 69 between the piston 50 and the bore 51 is formed by a hemispherical bearing comprising a seal 70. The seal is completed by a scraper seal 71 fixed on the face 15b of the slide 15 and which is applied to the lateral face of the piston 50.

Cette variante fonctionne de la même manière que le mode de réalisation précédent, avec un seul piston placé dans l'axe de la chambre de pressage 9, ce piston pouvant légèrement osciller grâce aux éléments hémisphériques 59 et 60 et à la portée hémisphérique 69.This variant works in the same way as the previous embodiment, with a single piston placed in the axis of the pressing chamber 9, this piston being able to oscillate slightly thanks to the hemispherical elements 59 and 60 and to the hemispherical bearing 69.

Ce système présente l'avantage de pouvoir être utilisé pour obturer l'orifice de sortie de la chambre de pressage par l'intermédiaire du coulisseau, au moins un vérin étant intégré dans ledit coulisseau et ayant une faible course, de l'ordre de 5 mm et dont la capacité d'huile est réduite permettant d'obtenir ainsi un temps de réponse plus rapide et d'augmenter les cadences de traitement des déchets.This system has the advantage of being able to be used to close the outlet orifice of the pressing chamber by means of the slide, at least one jack being integrated in said slide and having a short stroke, of the order of 5 mm and whose oil capacity is reduced, thus obtaining a faster response time and increasing the waste treatment rates.

Il présente également l'avantage d'avoir a ne pas utiliser des organes d'étanchéité au niveau de l'orifice de sortie de la chambre de pressage qui, comme on le sait, sont des organes qui se détériorent rapidement obligeant ainsi l'utilisateur à les remplacer fréquemment.It also has the advantage of not having to use sealing members at the outlet orifice of the pressing chamber which, as is known, are members which deteriorate rapidly thus forcing the user to replace them frequently.

Claims (9)

Presse de compactage et de traitement de déchets hétérogènes comprenant une phase solide et une phase liquide, ladite presse comportant : - un bâti (1), - une zone (3) d'alimentation recevant les déchets hétérogènes à traiter, ouverte vers le haut et présentant deux ouvertures (5, 6) latérales, opposées de section adaptée à celle d'un piston (7) de compression mobile entre l'une (5) des ouvertures de la zone d'alimentation (3) et une position située au-delà de l'autre ouverture (6) de ladite zone d'alimentation, - une chambre (9) de pressage comprenant un orifice d'entrée (10) et un orifice de sortie (11) opposés et disposés coaxialement par rapport à la zone d'alimentation (3), ladite chambre (9) ayant une section égale à celle du piston (7) de compression et comportant des passages calibrés (12a) reliant ladite chambre (9) de pressage à des moyens (13) de récupération de la phase liquide, - et une chambre (14) d'évacuation de la phase solide située en aval de la chambre (9) de pressage,    caractérisée en ce qu'elle comporte un organe (15, 16, 18) mobile transversalement par rapport à l'axe de la chambre (9) de pressage entre une première position d'obturation de l'orifice de sortie (11) de ladite chambre (9) de pressage pendant la compression des déchets hétérogènes et une seconde position d'ouverture dudit orifice de sortie (11) pour l'extraction de la phase solide de ladite chambre (9) de pressage, comprenant des moyens (20) de déplacement horizontal dudit organe (15, 16, 18) mobile selon l'axe de la chambre (9) de pressage pour appliquer la face (15a) dudit organe mobile en regard de l'orifice de sortie (11) de la chambre (9) de pressage contre ledit orifice de sortie pendant la compression des déchets hétérogènes.Press for compacting and treating heterogeneous waste comprising a solid phase and a liquid phase, said press comprising: - a frame (1), - a feed zone (3) receiving the heterogeneous waste to be treated, open upwards and having two lateral openings (5, 6), opposite in cross section adapted to that of a piston (7) of mobile compression between the one (5) of the openings of the feed area (3) and a position located beyond the other opening (6) of said feed area, - a pressing chamber (9) comprising an inlet orifice (10) and an outlet orifice (11) opposite and arranged coaxially with respect to the supply zone (3), said chamber (9) having an equal section to that of the compression piston (7) and comprising calibrated passages (12a) connecting said pressing chamber (9) to means (13) for recovering the liquid phase, - and a chamber (14) for evacuating the solid phase located downstream from the pressing chamber (9), characterized in that it comprises a member (15, 16, 18) movable transversely relative to the axis of the pressing chamber (9) between a first closed position of the outlet orifice (11) of said pressing chamber (9) during the compression of heterogeneous waste and a second opening position of said outlet orifice (11) for the extraction of the solid phase from said pressing chamber (9), comprising means (20) for horizontal movement of said movable member (15, 16, 18) according to the axis of the pressing chamber (9) for applying the face (15a) of said movable member opposite the outlet orifice (11) of the pressing chamber (9) against said outlet orifice during the compression of the waste heterogeneous. Presse selon la revendication 1, caractérisée en ce que l'organe mobile est formé par un coulisseau (15) commandé par un vérin (16) et guidé par des glissières (17) solidaires du bâti (1).Press according to claim 1, characterized in that the movable member is formed by a slide (15) controlled by a jack (16) and guided by slides (17) integral with the frame (1). Presse selon les revendications 1 et 2, caractérisée en ce que les moyens de déplacement horizontal sont formés par au moins un vérin (20) intégré dans ledit coulisseau (15) et dont le piston (21) se déplace selon une direction parallèle à l'axe de la chambre (9) de pressage et prend appui sur la paroi de la chambre d'évacuation (14) opposée à l'orifice de sortie (11) de la chambre (9) de pressage.Press according to claims 1 and 2, characterized in that the horizontal displacement means are formed by at least one jack (20) integrated in said slide (15) and the piston (21) of which moves in a direction parallel to the axis of the pressing chamber (9) and bears on the wall of the evacuation chamber (14) opposite the outlet orifice (11) of the pressing chamber (9). Presse selon la revendication 3, caractérisée en ce que le piston (21) du ou des vérins (20) est monté dans un alésage (22) dont une extrémité débouche sur la face (15b) du coulisseau (15) opposée à la face (15a) en regard de l'orifice de sortie (11) de la chambre (9) de pressage et dont l'autre extrémité est limitée par un fond (23), ledit alésage (22) étant ménagé dans le coulisseau (15).Press according to claim 3, characterized in that the piston (21) of the jack (s) (20) is mounted in a bore (22) one end of which opens onto the face (15b) of the slide (15) opposite the face ( 15a) opposite the outlet orifice (11) of the pressing chamber (9) and the other end of which is limited by a bottom (23), said bore (22) being formed in the slide (15). Presse selon la revendication 4, caractérisée en ce que le piston (21) a une longueur inférieure audit alésage (22) pour former une chambre de travail (24) du vérin (20) correspondant.Press according to claim 4, characterized in that the piston (21) has a length less than said bore (22) to form a working chamber (24) of the corresponding jack (20). Presse selon l'une quelconque des revendications précédentes, caractérisée en ce que le piston (21) du ou des vérins (20) est traversé par un axe (27) comportant un premier épaulement (28) en appui sur la face latérale (21a) du piston (21), opposée à la face latérale (21b) destinée à entrer en contact avec la paroi de la chambre d'évacuation (14) et un second épaulement (33) en appui sur un organe élastique de rappel du piston (20), ledit organe de rappel (34) étant lui même en appui sur une bride (30) montée dans ledit alésage (22) correspondant.Press according to any one of the preceding claims, characterized in that the piston (21) of the cylinder (s) (20) is crossed by an axis (27) having a first shoulder (28) in support on the lateral face (21a) of the piston (21), opposite to the lateral face (21b) intended to come into contact with the wall of the evacuation chamber (14) and a second shoulder (33) bearing on a elastic return member of the piston (20), said return member (34) itself being supported on a flange (30) mounted in said corresponding bore (22). Presse selon l'une quelconque des revendications précédentes, caractérisée en ce que la bride (30) divise la chambre de travail (24) en une chambre principale (24a) et en une chambre secondaire (24b), lesdites chambres (24a, 24b) communiquant entres elles par au moins un orifice (35) prévu dans ladite bride.Press according to any one of the preceding claims, characterized in that the flange (30) divides the working chamber (24) into a main chamber (24a) and into a secondary chamber (24b), said chambers (24a, 24b) communicating with each other through at least one orifice (35) provided in said flange. Presse selon l'une quelconque des revendications précédentes, caractérisée en ce que le coulisseau (15) comporte un canal (37) de distribution unique pour alimenter en fluide sous pression simultanément les chambres (24a, 24b) du ou des vérins (20).Press according to any one of the preceding claims, characterized in that the slide (15) comprises a single distribution channel (37) for simultaneously supplying pressurized fluid to the chambers (24a, 24b) of the jack or jacks (20). Presse selon les revendications 1 et 2, caractérisé en ce que les moyens de déplacement horizontal sont formés par un piston plat (50) coulissant dans une chemise formée par le coulisseau (15).Press according to claims 1 and 2, characterized in that the horizontal displacement means are formed by a flat piston (50) sliding in a jacket formed by the slide (15).
EP91403474A 1991-01-10 1991-12-19 Press for compacting and treating waste Withdrawn EP0494561A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9100248A FR2671514A1 (en) 1991-01-10 1991-01-10 PRESS FOR COMPACTING AND PROCESSING WASTE.
FR9100248 1991-01-10

Publications (1)

Publication Number Publication Date
EP0494561A1 true EP0494561A1 (en) 1992-07-15

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ID=9408583

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EP91403474A Withdrawn EP0494561A1 (en) 1991-01-10 1991-12-19 Press for compacting and treating waste

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Country Link
US (1) US5263411A (en)
EP (1) EP0494561A1 (en)
JP (1) JPH06122097A (en)
FR (1) FR2671514A1 (en)

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CN105764680A (en) * 2013-10-13 2016-07-13 D技术控股有限公司 Device and method for pressing organic material out of waste
EP2344284B1 (en) 2009-02-26 2016-08-10 DB Technologies BV Machine for processing the organic fraction of urban solid waste
CN111450587A (en) * 2020-04-15 2020-07-28 马文 Waste water treatment pressure filter

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US9514852B2 (en) * 2011-11-21 2016-12-06 Westinghouse Electric Company Llc Method to reduce the volume of boiling water reactor fuel channels for storage
EP3429767A1 (en) * 2016-03-18 2019-01-23 Anaergia B.V. Door for solid waste press
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EP2344284B1 (en) 2009-02-26 2016-08-10 DB Technologies BV Machine for processing the organic fraction of urban solid waste
EP3112039A1 (en) * 2009-02-26 2017-01-04 DB Technologies BV Machine and method for processing the organic fraction of urban solid waste
EP2344284B2 (en) † 2009-02-26 2019-10-02 DB Technologies BV Machine for processing the organic fraction of urban solid waste
CN105764680A (en) * 2013-10-13 2016-07-13 D技术控股有限公司 Device and method for pressing organic material out of waste
US10589486B2 (en) 2013-10-13 2020-03-17 Anaergia B.V. Device and method for pressing organic material out of waste
US11458701B2 (en) 2013-10-13 2022-10-04 Anaergia B.V. Device and method for pressing organic material out of waste
CN111450587A (en) * 2020-04-15 2020-07-28 马文 Waste water treatment pressure filter
CN111450587B (en) * 2020-04-15 2022-05-13 安徽美琛生态科技有限公司 Waste water treatment pressure filter

Also Published As

Publication number Publication date
JPH06122097A (en) 1994-05-06
US5263411A (en) 1993-11-23
FR2671514A1 (en) 1992-07-17

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