EP0555131A1 - Press for compacting containers with contaminated waste - Google Patents

Press for compacting containers with contaminated waste Download PDF

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Publication number
EP0555131A1
EP0555131A1 EP93400238A EP93400238A EP0555131A1 EP 0555131 A1 EP0555131 A1 EP 0555131A1 EP 93400238 A EP93400238 A EP 93400238A EP 93400238 A EP93400238 A EP 93400238A EP 0555131 A1 EP0555131 A1 EP 0555131A1
Authority
EP
European Patent Office
Prior art keywords
piston
main
chamber
skirt
main cylinder
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
EP93400238A
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German (de)
French (fr)
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EP0555131B1 (en
Inventor
Jacques Prevost
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.)
GEC Alsthom ACB
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GEC Alsthom ACB
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Publication date
Application filed by GEC Alsthom ACB filed Critical GEC Alsthom ACB
Publication of EP0555131A1 publication Critical patent/EP0555131A1/en
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Publication of EP0555131B1 publication Critical patent/EP0555131B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3021—Press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3057—Fluid-driven presses
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • G21F9/36—Disposal of solid waste by packaging; by baling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/902—Can crushers

Definitions

  • the present invention relates to a press for compressing drums of contaminated waste.
  • a press comprising a base provided with four columns supporting at their upper end a box spring forming a main cylinder for a gland piston and supporting two actuating cylinders for raising and lowering d '' a skirt from the top of the barrel to be compressed deposited on a pile of support located on the base.
  • the gland penetrates the skirt which thus protects the barrel.
  • the piston of the gland and the skirt which goes inside the cylinder of the piston of the gland while coming around the gland.
  • the gland piston is itself pierced by a non-opening bore playing the role of cylinder for a fixed piston linked to the upper end of the main cylinder.
  • Such a press comprises two cylinders for the skirt plus the gland piston which constitutes a cylinder composed with the fixed piston.
  • the object of the invention is to propose a simpler press comprising only one compound cylinder, while ensuring the same functions.
  • the invention thus relates to a press for compressing drums of contaminated waste, comprising a frame comprising a base and an upper base connected to the base by vertical supports, and a compression assembly comprising a main cylinder linked to the upper base, a main piston, located in said main cylinder and determining a main chamber between said piston and the upper bottom of said main cylinder, said main piston being extended by a gland rod, and a skirt intended to surround said barrel at the time of its compression by the gland, characterized in that said skirt is extended at its upper end by a tubular piston housed in said main cylinder between the latter and said gland rod and determining an intermediate chamber between itself and the main piston and a chamber annular between itself and the lower end of the main cylinder, said main chamber and said e annular chamber comprising pipes for their supply of control fluid and in that said intermediate chamber comprises a sliding leaktight device, allowing its supply of control fluid.
  • the press comprises a frame comprising a base 1 with, in its center, a pile of support 2, and an upper base 3 connected to the base 1 by four vertical columns 4.
  • the press then comprises a compression assembly comprising a main cylinder 5, a main piston 6 extending by a stuffing rod 7 and a skirt 8 to which is connected at its upper end, a tubular piston 9.
  • the main cylinder 5 has an upper bottom 10 and is open at its lower end.
  • the main cylinder 5 contains the main piston 6.
  • This main piston 6 defines a main chamber 11 between itself and the bottom 10 of the main cylinder.
  • This main chamber can be supplied with control fluid by pipes 12 made in the bottom 10.
  • the tubular piston 9 linked to the skirt 8 slides inside the main cylinder 5 between the latter and the gland rod 7.
  • This tubular piston 9 defines between itself and the main piston 6 an intermediate chamber 13 and between it same and the inner end of the main cylinder 5 an annular chamber 14.
  • the main cylinder 5 is fixed to the upper base 3 in a removable manner by means of studs 15. This makes it possible, by unscrewing the studs 15 to lower the main cylinder 5, after having placed the piston 6 with its gland 7 and the skirt 8 with its tubular piston 9 in the low position, so as to reduce the total height of the press and thus facilitate its transport.
  • Figure 4 shows the press in this position.
  • Figure 6 shows in half-view from above the upper box spring 3. We see that it has four studs 16 for handling the press for transport.
  • FIG. 5 is a detail showing the pipes 17, 18 for supplying the annular chamber 14 with control fluid. This figure 5 shows the detail according to a section seen in the plane V- V of Figure 6.
  • the supply of the intermediate chamber 13 is effected by means of a leaktight sliding device which comprises a tube 19 linked to the upper bottom 10 of the main cylinder 5.
  • This tube 19 slides freely with play in a well 20 of the main piston 6 and of the rod gland 7 which extends it.
  • a seal 21 seals between the tube 19 and the well 20 at the upper end of the well 20.
  • Radial channels 22 connect the intermediate chamber 13 to the well 20, just below the piston 6.
  • the tube 19 is connected to a channel 23 made in the bottom 10 opening to the outside for its connection to a supply pipe not shown.
  • the base 1 is fitted with stops 24 for the skirt 8, tubular piston 9 assembly.
  • the skirt 8 has guide pads 25 along the columns 4.
  • a sealed metal bellows 26 connects the lower end of the main cylinder 5 to the upper end of the skirt 8.
  • This bellows The purpose of this bellows is to isolate the external wall of the tubular piston 9 from the contaminated zone located under the upper bed base 3.
  • a floor provided with a seal, not shown, separates in effect, at the level of the bed base 3, the lower part contaminated from the uncontaminated upper part. It is therefore necessary to prevent the external wall of the tubular piston 9, lubricated by the control fluid, from returning to the fluid circuit, during the ascent of the skirt, traces of fluid having been contaminated.
  • the press In the initial state, the press is in the position shown in Figure 1. In this figure, we see a barrel 28 placed on the support pile 2 to be compressed.
  • Figure 2 shows the press in the lowered skirt position surrounding the barrel 2 to be compressed.
  • the flow of the pumps is then directed to the main chamber 11 through the channels 12, the intermediate chamber 13 being placed in communication with the main chamber by a distributor.
  • the pressure thus applies to the piston 6 over a section equal to the upper surface of the piston 6 minus the surface corresponding to the section of the intermediate chamber 13, that is to say ultimately equal to the section of the rod.
  • gland 7. The pressure applied is 50 bars and generates a precompaction effort corresponding to 10% of the nominal force of the press.
  • This pressure also generates the effort necessary to maintain the skirt 8 applied on the stops 24 throughout the duration of the precompaction and compaction.
  • FIG. 3 shows the final phase of compression, skirt and gland in the low position; the barrel 28 is reduced to a cake.
  • the wafer is stripped by raising the skirt by sending the oil into the annular chamber 14 through the pipe 17 (fig. 5) while blocking, by a distributor, the oil outlet from the main chamber 11 so as to avoid the simultaneous ascent of the main piston 6, the intermediate chamber 13 being placed in communication with the oil tank.
  • the skirt is continued to rise while controlling the opening of a discharge valve 29 (fig. 1) from the main chamber 11, the oil pouring into the oil tarpaulin.
  • the tubular piston 9 meets the piston 6 of the gland and drives it in its rise.
  • Figure 4 shows the press in transport condition. Its total height is reduced by sliding down the main cylinder 5 after placing the skirt and the gland in the low position and unscrewing the stud nuts 15.

Abstract

Press for compacting containers (28) of contaminated waste, comprising a frame including a base (1) and an upper crosshead (3) connected to the base by means of vertical supports (4), and a compacting assembly comprising a principal cylinder (5) linked to the upper crosshead (3), a principal piston (6), located in the said principal cylinder and determining a principal chamber (11) between the said piston and the upper end plate (10) of the said principal cylinder, the said principal piston being extended by a rammer rod (7), and a skirt (8) intended to surround the said container (28) at the time of the latter's compacting by the rammer, characterised in that the said skirt (8) is extended at its upper end by a tubular piston (9) accommodated in the said principal cylinder (5) between the latter and the said rammer rod (7) and determining an intermediate chamber (13) between itself and the principal piston (6) and an annular chamber (14) between itself and the lower end of the principal cylinder (5), the said principal chamber (11) and the said annular chamber (14) including pipes (12, 17) so that they can be supplied with control fluid, and in that the said intermediate chamber (13) includes a sliding leaktight device permitting its supply with control fluid. <IMAGE>

Description

La présente invention concerne une presse pour comprimer des fûts de déchets contaminés.The present invention relates to a press for compressing drums of contaminated waste.

On connaît, par exemple, par le document EP-A-0124185 une presse comprenant un socle muni de quatre colonnes supportant à leur extrémité supérieure un sommier formant cylindre principal pour un piston de fouloir et supportant deux vérins de commande de montée et de descente d'une jupe venant coiffer le fût à comprimer déposé sur un tas d'appui situé sur le socle. Lors de la compression, le fouloir pénètre dans la jupe qui protège ainsi le fût. Une fois le fût comprimé, on remonte le piston de fouloir ainsi que la jupe qui rentre à l'intérieur du cylindre du piston de fouloir tout en venant entourer le fouloir. Le piston de fouloir est lui-même percé d'un alésage non débouchant jouant le rôle de cylindre pour un piston fixe lié à l'extrémité supérieure du cylindre principal. Ceci permet dans une première phase d'exercer une première poussée dite petite poussée en alimentant la chambre située sous le piston fixe dont la section est réduite puis, dans une seconde phase d'exercer une poussée plus forte en alimentant la chambre située au dessus du piston de fouloir et dont la section correspond à la totalité de celle du cylindre principal.We know, for example, from document EP-A-0124185 a press comprising a base provided with four columns supporting at their upper end a box spring forming a main cylinder for a gland piston and supporting two actuating cylinders for raising and lowering d '' a skirt from the top of the barrel to be compressed deposited on a pile of support located on the base. During compression, the gland penetrates the skirt which thus protects the barrel. Once the barrel has been compressed, the piston of the gland and the skirt which goes inside the cylinder of the piston of the gland while coming around the gland. The gland piston is itself pierced by a non-opening bore playing the role of cylinder for a fixed piston linked to the upper end of the main cylinder. This allows in a first phase to exert a first so-called small thrust by feeding the chamber located under the fixed piston whose section is reduced then, in a second phase to exert a stronger thrust by feeding the chamber located above the piston of gland and whose section corresponds to the totality of that of the main cylinder.

Ainsi, une telle presse comprend deux vérins pour la jupe plus le piston de fouloir qui constitue un vérin composé avec le piston fixe.Thus, such a press comprises two cylinders for the skirt plus the gland piston which constitutes a cylinder composed with the fixed piston.

L'invention a pour but de proposer une presse plus simple ne comportant qu'un seul vérin composé, tout en assurant les mêmes fonctions.The object of the invention is to propose a simpler press comprising only one compound cylinder, while ensuring the same functions.

L'invention a ainsi pour objet une presse pour comprimer des fûts de déchets contaminés, comprenant un bâti comportant un socle et un sommier supérieur relié au socle par des supports verticaux, et un ensemble de compression comprenant un cylindre principal lié au sommier supérieur, un piston principal, situé dans ledit cylindre principal et déterminant une chambre principale entre ledit piston et le fond supérieur dudit cylindre principal, ledit piston principal se prolongeant par une tige de fouloir, et une jupe destinée à entourer ledit fût au moment de sa compression par le fouloir, caractérisée en ce que ladite jupe se prolonge à son extrémité supérieure par un piston tubulaire logé dans ledit cylindre principal entre celui-ci et ladite tige de fouloir et déterminant une chambre in- termédaire entre lui-même et le piston principal et une chambre annulaire entre lui-même et l'extrémité inférieure du cyclindre principal, ladite chambre principale et ladite chambre annulaire comportant des canalisations pour leur alimentation en fluide de commande et en ce que ladite chambre intermédiaire comporte un dispositif étanche coulissant, permettant son alimentant en fluide de commande.The invention thus relates to a press for compressing drums of contaminated waste, comprising a frame comprising a base and an upper base connected to the base by vertical supports, and a compression assembly comprising a main cylinder linked to the upper base, a main piston, located in said main cylinder and determining a main chamber between said piston and the upper bottom of said main cylinder, said main piston being extended by a gland rod, and a skirt intended to surround said barrel at the time of its compression by the gland, characterized in that said skirt is extended at its upper end by a tubular piston housed in said main cylinder between the latter and said gland rod and determining an intermediate chamber between itself and the main piston and a chamber annular between itself and the lower end of the main cylinder, said main chamber and said e annular chamber comprising pipes for their supply of control fluid and in that said intermediate chamber comprises a sliding leaktight device, allowing its supply of control fluid.

D'autres caractéristiques et avantages de l'invention ressortiront de la description d'un exemple de mise en oeuvre de l'invention, faite ci-après en regard du dessin annexé dans lequel:

  • Le figure 1 montre une presse selon l'invention en coupe axiale en position initiale de départ pour un cycle de compression. Dans cette vue et les trois suivantes, la coupe est faite selon A-A de la figure 6.
  • La figure 2 montre la presse de la figure 1 avec la jupe en position basse entourant le fût à comprimer.
  • La figure 3 montre la presse en phase finale de compression avec jupe et fouloir en position basse.
  • La figure 4 montre la presse mise en position transport assurant une hauteur réduite de l'ensemble.
  • La figure 5 est un détail montrant les canalisations d'alimentation de la chambre annulaire en fluide de commande, vue en section selon V-V de la figure 6.
  • La figure 6 est une demi-vue de dessus du sommier supérieur.
  • La figure 7 est un détail montrant un verrou de sécurité de retenue en position haute de l'ensemble formé par la jupe et le fouloir, vue en section selon Vll-VII de la figure 6.
Other characteristics and advantages of the invention will emerge from the description of an example of implementation of the invention, given below with reference to the appended drawing in which:
  • Figure 1 shows a press according to the invention in axial section in the initial starting position for a compression cycle. In this view and the following three, the section is made according to AA in FIG. 6.
  • Figure 2 shows the press of Figure 1 with the skirt in the low position surrounding the barrel to be compressed.
  • Figure 3 shows the press in the final compression phase with skirt and gland in the low position.
  • Figure 4 shows the press in the transport position ensuring a reduced height of the assembly.
  • FIG. 5 is a detail showing the supply pipes for the annular chamber with control fluid, seen in section along VV in FIG. 6.
  • Figure 6 is a half top view of the upper box spring.
  • FIG. 7 is a detail showing a safety lock for retaining the upper position of the assembly formed by the skirt and the gland, seen in section along Vll-VII in FIG. 6.

En se reportant à la figure 1, la presse comprend un bâti comportant un socle 1 avec, en son centre, un tas d'appui 2, et un sommier supérieur 3 relié au socle 1 par quatre colonnes verticales 4. La presse comprend ensuite un ensemble de compression comprenant un cylindre principal 5, un piston principal 6 se prolongeant par une tige de fouloir 7 et une jupe 8 à laquelle est lié à son extrémité supérieure, un piston tubulaire 9.Referring to Figure 1, the press comprises a frame comprising a base 1 with, in its center, a pile of support 2, and an upper base 3 connected to the base 1 by four vertical columns 4. The press then comprises a compression assembly comprising a main cylinder 5, a main piston 6 extending by a stuffing rod 7 and a skirt 8 to which is connected at its upper end, a tubular piston 9.

Le cylindre principal 5 comporte un fond supérieur 10 et est ouvert à son extrémité inférieure. Le cylindre principal 5 contient le piston principal 6. Ce piston principal 6 délimite une chambre principale 11 entre lui-même et le fond 10 du cylindre principal. Cette chambre principale peut être alimentée en fluide de commande par des canalisations 12 réalisées dans le fond 10.The main cylinder 5 has an upper bottom 10 and is open at its lower end. The main cylinder 5 contains the main piston 6. This main piston 6 defines a main chamber 11 between itself and the bottom 10 of the main cylinder. This main chamber can be supplied with control fluid by pipes 12 made in the bottom 10.

Le piston tubulaire 9 lié à la jupe 8 coulisse à l'intérieur du cylindre principal 5 entre celui-ci et la tige de fouloir 7. Ce piston tubulaire 9 délimite entre lui-même et le piston principal 6 une chambre intermédiaire 13 et entre lui-même et l'extrémité intérieure du cylindre principal 5 une chambre annulaire 14.The tubular piston 9 linked to the skirt 8 slides inside the main cylinder 5 between the latter and the gland rod 7. This tubular piston 9 defines between itself and the main piston 6 an intermediate chamber 13 and between it same and the inner end of the main cylinder 5 an annular chamber 14.

Le cylindre principal 5 est fixé au sommier supérieur 3 d'une façon amovible par le moyen de goujons 15. Ceci permet, en dévissant les goujons 15 d'abaisser le cyclindre principal 5, après avoir placé le piston 6 avec son fouloir 7 et la jupe 8 avec son piston tubulaire 9 en position basse, de manière à réduire la hauteur totale de la presse et ainsi faciliter son transport. La figure 4 montre la presse dans cette position.The main cylinder 5 is fixed to the upper base 3 in a removable manner by means of studs 15. This makes it possible, by unscrewing the studs 15 to lower the main cylinder 5, after having placed the piston 6 with its gland 7 and the skirt 8 with its tubular piston 9 in the low position, so as to reduce the total height of the press and thus facilitate its transport. Figure 4 shows the press in this position.

La figure 6 montre en demi-vue de dessus le sommier supérieur 3. On voit qu'il possède quatre plots 16 permettant la manutention de la presse pour son transport.Figure 6 shows in half-view from above the upper box spring 3. We see that it has four studs 16 for handling the press for transport.

La figure 5 est un détail montrant les canalisations 17, 18 permettant l'alimentation de la chambre annulaire 14 en fluide de commande. Cette figure 5 montre le détail selon une section vue dans le plan V-V de la figure 6.Figure 5 is a detail showing the pipes 17, 18 for supplying the annular chamber 14 with control fluid. This figure 5 shows the detail according to a section seen in the plane V- V of Figure 6.

L'alimentation de la chambre intermédiaire 13 est effectuée grâce à un dispositif étanche coulissant qui comprend un tube 19 lié au fond supérieur 10 du cyclindre principal 5. Ce tube 19 coulisse librement avec jeu dans un puits 20 du piston principal 6 et de la tige de fouloir 7 qui le prolonge. Un joint 21 assure l'étanchéité entre le tube 19 et le puits 20 à l'extrémité supérieure du puits 20. Des canaux radiaux 22 relient la chambre intermédiaire 13 au puits 20, juste au-dessous du piston 6. Bien entendu, le tube 19 est raccordé à un canal 23 effectué dans le fond 10 débouchant à l'extérieur pour son raccordement à une tubulure d'alimentation non représentée.The supply of the intermediate chamber 13 is effected by means of a leaktight sliding device which comprises a tube 19 linked to the upper bottom 10 of the main cylinder 5. This tube 19 slides freely with play in a well 20 of the main piston 6 and of the rod gland 7 which extends it. A seal 21 seals between the tube 19 and the well 20 at the upper end of the well 20. Radial channels 22 connect the intermediate chamber 13 to the well 20, just below the piston 6. Of course, the tube 19 is connected to a channel 23 made in the bottom 10 opening to the outside for its connection to a supply pipe not shown.

Le socle 1 est équipée de butées 24 pour l'ensemble jupe 8, piston tubulaire 9. En outre, la jupe 8 comporte des patins de guidage 25 le long des colonnes 4.The base 1 is fitted with stops 24 for the skirt 8, tubular piston 9 assembly. In addition, the skirt 8 has guide pads 25 along the columns 4.

Enfin, un soufflet étanche métallique 26 relie l'extrémité inférieure du cyclindre principal 5 à l'extrémité supérieure de la jupe 8.Finally, a sealed metal bellows 26 connects the lower end of the main cylinder 5 to the upper end of the skirt 8.

Ce soufflet a pour but d'isoler la paroi externe du piston tubulaire 9 de la zone contaminée située sous le sommier supérieur 3. Un plancher muni d'un joint, non représenté, sépare en effet, au niveau du sommier 3, la partie inférieure contaminée de la partie supérieure non contaminée. Il faut donc éviter que la paroi externe du piston tubulaire 9, lubrifiée par le fluide de commande, ne ramène dans le circuit de fluide, lors de la remontée de la jupe, des traces de fluide ayant été contaminé.The purpose of this bellows is to isolate the external wall of the tubular piston 9 from the contaminated zone located under the upper bed base 3. A floor provided with a seal, not shown, separates in effect, at the level of the bed base 3, the lower part contaminated from the uncontaminated upper part. It is therefore necessary to prevent the external wall of the tubular piston 9, lubricated by the control fluid, from returning to the fluid circuit, during the ascent of the skirt, traces of fluid having been contaminated.

La figure 7, qui est une section dans le plan repéré VII-VII sur la figure 6, montre un verrou de sécurité 27 de retenu de l'ensemble jupe-piston tubulaire 8-9 et tige de fouloir-piston principal 7-6 dans sa position haute telle que représentée figure 1.FIG. 7, which is a section in the plane marked VII-VII in FIG. 6, shows a safety lock 27 for retaining the tubular skirt-piston assembly 8-9 and main gland-piston rod 7-6 in its high position as shown in FIG. 1.

A l'état initial, la presse se trouve dans la position représentée sur la figure 1. Sur cette figure, on voit un fût 28 placé sur le tas d'appui 2 pour être comprimé.In the initial state, the press is in the position shown in Figure 1. In this figure, we see a barrel 28 placed on the support pile 2 to be compressed.

On commence par déverrouiller le verrou 27, puis on procède à la descente de la jupe 8 par alimentation en huile de la chambre intermédiaire 13 par les canaux 23, 19, 22. La pression de commande est par exemple de 50 bars. L'ensemble piston-fouloir 6-7 reste en position haute grâce à la pression de l'huile sur la face inférieure du piston 6.We start by unlocking the lock 27, then we proceed to the descent of the skirt 8 by supplying oil to the intermediate chamber 13 through the channels 23, 19, 22. The control pressure is for example 50 bars. The piston-gland assembly 6-7 remains in the high position thanks to the oil pressure on the underside of the piston 6.

La figure 2 montre la presse dans la position jupe descendue entourant le fût 2 à comprimer.Figure 2 shows the press in the lowered skirt position surrounding the barrel 2 to be compressed.

Le débit des pompes est ensuite dirigé vers la chambre principale 11 par les canaux 12, la chambre intermédiaire 13 étant mise en communication avec la chambre principale par un distributeur. La pression s'applique ainsi sur le piston 6 sur une section égale à la surface supérieure du piston 6 moins la surface correspondant à la section de la chambre intermédiaire 13, c'est-à-dire finalement égale à la section de la tige de fouloir 7. La pression appliquée est de 50 bars et engendre un effort de précompactage correspondant à 10% de l'effort nominal de la presse.The flow of the pumps is then directed to the main chamber 11 through the channels 12, the intermediate chamber 13 being placed in communication with the main chamber by a distributor. The pressure thus applies to the piston 6 over a section equal to the upper surface of the piston 6 minus the surface corresponding to the section of the intermediate chamber 13, that is to say ultimately equal to the section of the rod. gland 7. The pressure applied is 50 bars and generates a precompaction effort corresponding to 10% of the nominal force of the press.

Cette pression engendre également l'effort nécessaire pour maintenir la jupe 8appIiquée sur Ies butées 24 pendant toute le durée du précompactage et du compactage.This pressure also generates the effort necessary to maintain the skirt 8 applied on the stops 24 throughout the duration of the precompaction and compaction.

Lorsque l'on arrive à cet effort, la communication entre la chambre intermédiaire 13, et la chambre principale 11 est fermée, et la chambre intermédiaire est reliée à la bâche d'huile alimentaire par l'intermédiaire d'une soupage d'équilibrage et une pompe haute pression à 315 bars débite dans la seule chambre principale 11. La figure 3 montre la phase finale de compression, jupe et fouloir en position basse; le fût 28 est réduit en galette.When this effort is reached, the communication between the intermediate chamber 13 and the main chamber 11 is closed, and the intermediate chamber is connected to the tank of edible oil by means of a balancing soup and a high pressure pump at 315 bars delivers in the only main chamber 11. FIG. 3 shows the final phase of compression, skirt and gland in the low position; the barrel 28 is reduced to a cake.

On décomprime ensuite l'huile des chambres principale et intermédiaire puis on effectue le dévêtis- sage de la galette par remontée de la jupe en envoyant l'huile dans la chambre annulaire 14 par la canalisation 17 (fig.5) tout en bloquant, par un distributeur, la sortie de l'huile de la chambre principale 11 de manière à éviter la remontée simultanée du piston principal 6, la chambre intermédiaire 13 étant mise en communication avec la bâche d'huile.Then the oil in the main and intermediate chambers is decompressed, then the wafer is stripped by raising the skirt by sending the oil into the annular chamber 14 through the pipe 17 (fig. 5) while blocking, by a distributor, the oil outlet from the main chamber 11 so as to avoid the simultaneous ascent of the main piston 6, the intermediate chamber 13 being placed in communication with the oil tank.

Enfin, une fois la jupe dégagée du fût réduit en galette, on poursuit la remontée de la jupe tout en pilotant l'ouverture d'un clapet de refoulement 29 (fig.1) de la chambre principale 11, l'huile se déversant dans la bâche à huile. Le piston tubulaire 9 rencontre le piston 6 de fouloir et l'entraîne dans sa montée.Finally, once the skirt has been freed from the barrel reduced to a slab, the skirt is continued to rise while controlling the opening of a discharge valve 29 (fig. 1) from the main chamber 11, the oil pouring into the oil tarpaulin. The tubular piston 9 meets the piston 6 of the gland and drives it in its rise.

En position haute, on arrête les pompes et l'ensemble piston de fouloir et jupe sont équilibrés en position haute par l'huile de la chambre annulaire 14 qui est bloquée par une soupape d'équilibrage tarée à 50 bars. Le verrou de sécurité 27 (fig.7) est mis en place à titre de sécurité.In the high position, the pumps are stopped and the gland piston and skirt assembly are balanced in the high position by the oil in the annular chamber 14 which is blocked by a balancing valve calibrated at 50 bars. The security lock 27 (fig. 7) is put in place for security.

Enfin, la figure 4 montre la presse en état de transport. Sa hauteur totale est réduite par coulissement vers le bas du cyclindre principal 5 après mise en position basse de la jupe et du fouloir et dévissage des écrous de goujons 15.Finally, Figure 4 shows the press in transport condition. Its total height is reduced by sliding down the main cylinder 5 after placing the skirt and the gland in the low position and unscrewing the stud nuts 15.

Claims (4)

1/ Presse pour comprimer des fûts (28) de déchets contaminés, comprenant un bâti comportant un socle (1) et un sommier supérieur (3) relié au socle par des supports verticaux (4), et un ensemble de compression comprenant un cylindre principal (5) lié au sommier supérieur (3), un piston principal (6), situé dans ledit cylindre principal et déterminant une chambre principale (11) entre ledit piston et le fond supérieur (10) dudit cylindre principal, ledit piston principal se prolongeant par une tige de fouloir (7), et une jupe (8) destinée à entourer ledit fût (28) au moment de sa compression par le fouloir, caractérisée en ce que ladite jupe (8) se prolonge à son extrémité supérieure par un piston tubulaire (9) logé dans ledit cylindre principal (5) entre celui-ci et ladite tige de fouloir (7) et déterminant une chambre intermédiaire (13) entre lui-même et le piston principal (6) et une chambre annulaire (14) entre lui-même et l'extrémité inférieure du cylindre principal (5), ladite chambre principale (11) et ladite chambre annulaire (14) comportant des canalisations (12,17) pour leur alimentation en fluide de commande et en ce que ladite chambre intermédiaire (13) comporte un dispositif étanche coulissant, permettant son alimentation en fluide de commande.1 / Press for compressing drums (28) of contaminated waste, comprising a frame comprising a base (1) and an upper base (3) connected to the base by vertical supports (4), and a compression assembly comprising a main cylinder (5) linked to the upper bed (3), a main piston (6), located in said main cylinder and determining a main chamber (11) between said piston and the upper bottom (10) of said main cylinder, said main piston extending by a gland rod (7), and a skirt (8) intended to surround said barrel (28) at the time of its compression by the gland, characterized in that said skirt (8) is extended at its upper end by a piston tubular (9) housed in said main cylinder cipal (5) between the latter and said stuffing rod (7) and determining an intermediate chamber (13) between itself and the main piston (6) and an annular chamber (14) between itself and the end lower of the main cylinder (5), said main chamber (11) and said annular chamber (14) comprising pipes (12,17) for their supply of control fluid and in that said intermediate chamber (13) comprises a sealed device sliding, allowing its supply of control fluid. 2/ Presse selon la revendication 1, caractérisée en ce que ledit dispositif étanche coulissant comprend un tube (19) lié au fond supérieur (10) du cylindre principal (5) et coulissant dans un puits (20) du piston principal (6) et de la tige de fouloir (7), avec un jeu entre ledit tube et la paroi latérale du puits et un dispositif d'étanchéité (21) à l'extrémité supérieure du puits entre le piston et le tube, au moins un canal radial (22) reliant ladite chambre intermédiaire (13) audit puits (20) à l'extrémité supérieure de ladite tige de fouloir, juste sous le piston principal (6).2 / Press according to claim 1, characterized in that said sliding sliding device comprises a tube (19) connected to the upper bottom (10) of the main cylinder (5) and sliding in a well (20) of the main piston (6) and of the gland rod (7), with a clearance between said tube and the side wall of the well and a sealing device (21) at the upper end of the well between the piston and the tube, at least one radial channel ( 22) connecting said intermediate chamber (13) to said well (20) at the upper end of said gland rod, just under the main piston (6). 3/ Presse selon l'une des revendications 1 ou 2, caractérisée en ce que ledit cylindre principal (5) est lié de façon amovible (15) audit sommier principal (3), autorisant une réduction de la hauteur totale de la presse pour son transport, par coulissement vers le bas dudit cylindre principal (5), le piston principal (6) et ladite jupe (8) étant disposés en position basse.3 / Press according to one of claims 1 or 2, characterized in that said main cylinder (5) is removably linked (15) to said main bed (3), allowing a reduction in the total height of the press for its transport, by sliding down said main cylinder (5), the main piston (6) and said skirt (8) being arranged in the low position. 4/ Presse selon l'une des revendications 1 ou 2, caractérisée en ce qu'un soufflet étanche (26) relie l'extrémité inférieure dudit cylindre principal (5) à l'extrémité supérieure de la jupe (8) au niveau de la liaison avec ledit piston tubulaire (9).4 / Press according to one of claims 1 or 2, characterized in that a sealed bellows (26) connects the lower end of said main cylinder (5) to the upper end of the skirt (8) at the level of the connection with said tubular piston (9).
EP93400238A 1992-02-03 1993-02-01 Press for compacting containers with contaminated waste Expired - Lifetime EP0555131B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9201163A FR2686830B1 (en) 1992-02-03 1992-02-03 PRESS FOR COMPRESSING DRUGS OF CONTAMINATED WASTE.
FR9201163 1992-02-03

Publications (2)

Publication Number Publication Date
EP0555131A1 true EP0555131A1 (en) 1993-08-11
EP0555131B1 EP0555131B1 (en) 1995-11-08

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EP93400238A Expired - Lifetime EP0555131B1 (en) 1992-02-03 1993-02-01 Press for compacting containers with contaminated waste

Country Status (8)

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US (1) US5323698A (en)
EP (1) EP0555131B1 (en)
JP (1) JPH05277795A (en)
AT (1) ATE129963T1 (en)
CA (1) CA2088561C (en)
DE (1) DE69300744T2 (en)
FR (1) FR2686830B1 (en)
ZA (1) ZA93711B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013254A1 (en) * 1995-10-04 1997-04-10 British Nuclear Fuels Plc Compacter for compacting containers containing hazardous waste
US11022421B2 (en) 2016-01-20 2021-06-01 Lucent Medical Systems, Inc. Low-frequency electromagnetic tracking

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
DE19605660A1 (en) * 1996-02-15 1997-08-21 Big Entwicklungs Und Vermietun Compression device for containers containing radioactive material
FR2746054B1 (en) * 1996-03-13 1998-06-12 COMPACTION METHOD, MEANS AND DEVICE, SUITABLE FOR COMPACTING MATERIALS WITH PYROPHORIC TRENDS
SE507065C2 (en) * 1996-12-10 1998-03-23 Lars Persson I Skaane Ab Seal of hydraulic press
SK14522001A3 (en) * 1999-04-22 2002-04-04 Framatome Anp Gmbh Device for compressing objects and a high-pressure press
GB2380158A (en) * 2001-10-01 2003-04-02 Sist S De Embalaje Sorsa S A Baling machine and Corresponding use
DE10213236B4 (en) * 2002-03-25 2011-03-24 Areva Np Gmbh Baler
FR2857899B1 (en) * 2003-07-22 2005-11-18 Cogema PRESS TO COMPACT
CN110153146B (en) * 2019-05-27 2020-07-24 贺江楚 Environment-friendly waste treatment device

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Publication number Priority date Publication date Assignee Title
EP0124185A1 (en) * 1983-05-02 1984-11-07 Fontijne Holland B.V. Hydraulic press for compacting drums containing radio-active waste
EP0125552A1 (en) * 1983-05-14 1984-11-21 Nukem GmbH Hydraulic press

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US2327117A (en) * 1942-03-21 1943-08-17 Loewy Eng Co Ltd Hydraulic forging press
JPS57156896A (en) * 1981-03-23 1982-09-28 Hitachi Ltd Hydraulic cylinder quick feed value mechanism
US4685391A (en) * 1986-01-16 1987-08-11 The Scientific Ecology Group, Inc. Remotely controlled multishaped container compacting press
JPH0763876B2 (en) * 1987-07-28 1995-07-12 株式会社神戸製鋼所 Press machine

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EP0124185A1 (en) * 1983-05-02 1984-11-07 Fontijne Holland B.V. Hydraulic press for compacting drums containing radio-active waste
EP0125552A1 (en) * 1983-05-14 1984-11-21 Nukem GmbH Hydraulic press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013254A1 (en) * 1995-10-04 1997-04-10 British Nuclear Fuels Plc Compacter for compacting containers containing hazardous waste
US11022421B2 (en) 2016-01-20 2021-06-01 Lucent Medical Systems, Inc. Low-frequency electromagnetic tracking

Also Published As

Publication number Publication date
FR2686830A1 (en) 1993-08-06
ATE129963T1 (en) 1995-11-15
ZA93711B (en) 1993-09-01
DE69300744D1 (en) 1995-12-14
CA2088561A1 (en) 1993-08-04
FR2686830B1 (en) 1994-03-18
US5323698A (en) 1994-06-28
EP0555131B1 (en) 1995-11-08
DE69300744T2 (en) 1996-04-11
CA2088561C (en) 1997-02-18
JPH05277795A (en) 1993-10-26

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