+

WO1997013254A1 - Dispositif de compactage de conteneurs renfermant des dechets dangereux - Google Patents

Dispositif de compactage de conteneurs renfermant des dechets dangereux Download PDF

Info

Publication number
WO1997013254A1
WO1997013254A1 PCT/EP1995/003922 EP9503922W WO9713254A1 WO 1997013254 A1 WO1997013254 A1 WO 1997013254A1 EP 9503922 W EP9503922 W EP 9503922W WO 9713254 A1 WO9713254 A1 WO 9713254A1
Authority
WO
WIPO (PCT)
Prior art keywords
ram
mould
compacter
container
press table
Prior art date
Application number
PCT/EP1995/003922
Other languages
English (en)
Inventor
Arthur Robinson
John Guy Walker
Jarrod Richard Haworth
Original Assignee
British Nuclear Fuels Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Nuclear Fuels Plc filed Critical British Nuclear Fuels Plc
Priority to PCT/EP1995/003922 priority Critical patent/WO1997013254A1/fr
Publication of WO1997013254A1 publication Critical patent/WO1997013254A1/fr

Links

Classifications

    • 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
    • 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
    • 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

Definitions

  • This invention relates to a compacter for compacting containers containing radioactive, toxic or other hazardous waste, in particular intermediate level radioactive waste.
  • the description hereinbelow relates solely to drying radioactive waste, because that is the application for which the invention was developed.
  • the compacter is equally applicable to compacting toxic, biologically dangerous or other hazardous waste, i.e. that is potentially harmful to humans or creatures on exposure to radiation from, or on contact with, such waste.
  • Radioactive waste divides into three categories, depending on the amount of radioactivity it contains - low, intermediate and high-level.
  • Low level wastes are ones that typically need to be han d led b y personnel wearing protective clothing, but no physical barrier of substantial construction, e.g. concrete, is additionally required to shield operating personnel from radiation.
  • High level waste on the other hand, has a high enough ra d ioactive content that it continues to generate heat, due to radioactive decay, in sufficient quantities that special cooling measures are needed to prevent the temperature of the waste from rising to unacceptably high levels.
  • Intermediate level waste has radioactivity levels between these two extremes. Solid radioactive wastes are in fact categorised in the UK as follows (Radioactive Waste Management Advisory committee 5th Annual Report June 1984) :
  • High Level Waste significantly self heating wastes
  • Low Level Waste less than 4E9 Bq per te alpha and/or less than 12E9 Bq per te beta/gamma
  • low level radioactive waste can be dried to remove moisture, principally water, and then compacted under extremely large applied force, so that the volume occupied by the resulting waste product is less than that of the initial radioactive waste, in particular because all the moisture has been removed and the internal voids distributed throughout the bulk of the material left behind as a result of the drying process are compressed flat as far as possible in the compaction process .
  • the compaction process can be carried out using a compacter which comprises , essentially, a press table on which a (sacrificial) container containing low level radioactive waste is supported and a hydraulic press arrangement including a ram which is applied to the top end of the container under very high force .
  • the compacter also comprises a mould that fits around the container with only a nominal clearance such that as the ram force is applied to the container from above, the mould prevents the container from distorting outwardly.
  • the lower face of the ram, the inside surface of the mould and the top surface of the press plate are subj ected to extremely high loads .
  • the forces acting can be extreme in localised regions because the waste is typically not homogeneous , containing for example hard metal pieces , which makes the loading on the mould ram and press plate surfaces uneven .
  • the mould can be f itted with an internal l iner of hardened metal formed with a f lange at its lower end which is bolted in a complementary recess in the underside of the mould .
  • a hardened meta l plate may be bolted to the bottom face of the main ram. Therefore, when the ram plate and liner need replacement, they merely have to be unbolte d b y maintenance personnel and replacement parts fitted.
  • the press table can have a remova b le press plate mounted on top of the press table, the press plate being replaced when it becomes worn or d amaged.
  • a compacter for compacting containers containing radioactive, toxic or other hazardous waste, .
  • a press table for supporting a container to be compacted
  • a ram mounted above the press table and extending generally in an upwardly direction
  • hydraulic pressure means for urging the ram downwardly towards the press table to compact the container between the lower end of the ram and the press table and for withdrawing the ram from the container
  • a mould that is positioned or positionable above and adjacent the press table for surrounding the container during compaction, the mould having a replaceable internal liner releasably secured in the mould by first securing means which is operable from the top of the mould for releasing the mould liner.
  • the mould liner can be released without the need for hands on maintenance in the radioactive zone where the container compaction takes place.
  • a compacter for compacting containers containing radioactive, toxic or other hazardous waste comprising a press table for supporting a container to be compacted, a ram mounted above the press table and extending generally in an upward direction, the ram having a replaceable ram plate on the lower end thereof, said ram plate being releasably held in position by second securing means, which is operable from an upper region of the ram for releasing the ram plate, hydraulic pressure means for urging the ram towards the press table to compact the container between the lower end of the ram and the press table and for withdrawing the ram from the container, and a mould that is positione d or positionable above and adjacent the press ta b le for surrounding the container during compaction.
  • the second securing means is operable from an upper region (e.g the top end) of the ram, again the ram plate can be released by operating personnel without the need for hands on maintenance in the radioactive zone where the container compaction takes place.
  • a compacter f or compacting containers containing radioactive, toxic or other hazardous waste comprising a .press ta b le for supporting a container to be compacted, a ram mounted above the press table and extending generally in an upward direction, the ram having a replaceable ram plate on the lower end thereof, said ram plate being releasably held in position by second securing means, which is operable from an upper region of the ram for releasing the ram plate, hydraulic pressure means for urging the ram towards the press ta b le to compact the container between the lower end of the ram and the press table and for withdrawing the ram from the container, and a mould that is positione d or positionable above and adjacent the press ta b le for surrounding the container during compaction, the mould having a replaceable internal liner releasably secured in the mould by first securing ⁇ eans which is operable from the top of the mould for releasing the
  • the mould liner and the ram plate can be released from the top of the mould and an upper region, e.g. the top end, of the ram, respectively, which, with the compacter installed in a waste handling plant having a sealed environment for the safe handling of the waste, would both be positioned outside the sealed environment in a safe handling area for operating personnel, the required maintenance can be performed without risk of operating personnel being exposed to harmful radiation.
  • the liner can be a thick-walled cylindrical liner, the screw-threaded bores being formed in the upper end of the wall of the liner.
  • the liner may be held in the mould by a tapered interference fit which can be released by displacing the liner a short distance downwardly relative to the mould when the bolts are unscrewed from the liner.
  • removable washers e.g. each comprising two C-shaped washer halves, are located between the underside of the bolt heads and the upper end face of the mould. Then, the bolts are slackened off slightly, the washers removed, the bolts retightened in- the screwthreaded bores, the bolt heads then being spaced a short distance above the mould, and a part of the ram used to apply downward pressure to displace the bolt heads into contact with the mould, thereby releasing the tapered interference fit.
  • the second securing means preferably comprises a plurality of bolts passing through a respective oversized holes extending through the ram from an upper face thereof to its underside, these bolts being received in respect second screw threaded bores formed in the ram plate.
  • suitable transport means e.g. a conveyor, robot and/or manipulators used for transferring containers of radioactive waste between the press plate and a remote decontamination and maintenance facility also located in the sealed environment, can also be used for removing the damaged mould liner and ram plate from the location of the compacter and transporting replacement components to the compacter for being re-bolted in place .
  • the hydraulic means comprises a single-acting, hydraulic ram cylinder and co-operating ram piston , one of which is connected to a plurality of upright support columns at or near an upper end thereof and the other of which is connected to said ram which is mounted generally parallel to the support columns and in a central location and is united with a cross-piece which is movably mounted on the support columns , so that hydraulic fluid supplied under pressure to said hydraulic cylinder causes said ram to move downwardly to compact the container against the press table, and at least two return hydraulic cylinders and respective co-operating pistons arranged on opposite sides of the ram cylinder, one of each return cylinder and co-operating piston being connected to said support columns at or near their upper ends and the other being connected to said cross-piece.
  • the roof of the sealed environment can act as a physical barrier to prevent leaked hydraulic fluid entering into the sealed environment , which is particularly important since it is difficult to treat hydraulic fluid contaminated with radioactivity .
  • the ram hy d rau l i c cylinder is mounted on, and extends a b ov e , a transverse structure interconnecting t he u p ri gh t support columns and the ram piston cgnstitut e s an upper part of the ram.
  • the return h y d rau l i c cylinders are mounted on, and extend a b ov e , the transverse structure and the return pistons are connected to the cross-piece.
  • Additiona ll y, t h e transverse structure is approximately squar e - sh ap ed in plan view and the compacter has four sup p ort c olumns whose upper ends are respectively s ecure d to the four corners of the transverse structure, the return hydraulic cylinders being mounte d on t h e transverse structure, respectively at the mi d -points of two opposite sides of the transverse stru c ture.
  • This arrangement is especially compact an d functional , and has the further advantage t h at, when the transverse structure is installed in an upper flooring which separates a second sealed envir o nment, located above the roof of the first, ra d ioactive, sealed environment, from a third environm e nt f or maintenance personnel , the second an d f ir s t environments being held under increasingly re d u c e d pressures relative to the pressure in t he t h ir d environment, the ram and return hydraulic cy l in de r s all extend into the third environment, so t h at maintenance can easily be carried out o n t hes e hydraulic cylinders .
  • m o u ld it is carried on a cross-piece which is movab l y m o unt ed o n the support columns below the ram cross-pi ece , tw o do uble-acting hydraulic cylinders are mounte d on, an d e xtend above, said transverse structure , resp ec tiv el y at the mid-points of the other two opposite sides of said transverse structure, and two pistons, respectively mounted in and co-operating with said double-acting hydraulic cylinders, are .connected to said mould cross-piece for raising and lowering said mould.
  • the press table When installing the compacter, the press table is located in the sealed environment and the support columns extend upwardly through a further transverse structure interconnecting the support columns and forming part of the upper boundary of the sealed environment, the mould extending downwardly through an opening in the further transverse structure which carries a seal around said opening and sealing against the exterior of the mould. Even if any hydraulic fluid that has leaked from either double-acting cylinder has found its way down to the top surface of the further transverse structure where it is present as a few drops or a small pool, the leaked hydraulic fluid can reliably .be prevented from entering the radioactive environment by the seal.
  • Figure 1 is a vertical sectional view through a compacter installed in a protective cell that is horizontally divided to provide an upper working environment, an intermediate environment and a lower environment in which the drum compaction takes place
  • Figure 2 is a vertical sectional view on an en l arged scale of the compacter of Figure ⁇ taken along the line II-II of Figure 4 ,
  • Figure 2A is an enlarged detail of part of Figure l
  • Figure 3 is a side elevational view o f the compacter of Figure 2 as seen in the direction of arrow in in Figure 4, a double-acting cylinder/piston arrangement and its connection to a mould cross-piece being omitted for clarity, and
  • Figure 4 is a plan view of the compacter shown in Figure 2.
  • a compacter f or intermediate level radioactive waste and d esignated generally by reference numeral 1 comprises a b ase structure 2 on which is mounted a press ta b le 3 an d , adjacent the four corners thereof in a symmetrical arrangement, four upright support columns 4 , which are interconnected " at a lower region b y a first transverse structure 5 and at their top ends b y a second transverse structure 6, the support columns 4 and the lower and upper transverse structures 5 , 6 together forming a rigid frame 50.
  • a ram cylinder 7 is mounted on the upper transverse structure 6 and extends upwardly from it .
  • a compaction ram 51 extending generally parallel to the upright supports 4 and comprising an upper ram piston 8 , which is slidably mounted inside the ram cylinder 7 , a connecting piece 10 , and a main ram member 9 formed integrally with a cross-piece 11 , which is slidably mounted on the four support columns 4 .
  • Hydraulic fluid admitted under pressure to the ram cylinder 7 urges the compaction ram 51- downwardly, the upright support columns 4 serving to guide the compaction ram 9 in a stable manner .
  • a cylindrical mould 13 is formed integrally with a cross-piece 14 which is also slidably mounted on the four upright support columns 4 for displacing the mould downwardly towards , and upwardly from, the press table. 3 and which is positioned beneath the ram cross-piece 11.
  • the function of the cylindrical mould 13 is to prevent radial distortion of the cylindrical container when the ram is applied under pressure to the container 12 , the mould , when f itted around the container 12 , leaving only a nominal clearance between them.
  • Figures 1 to 3 show the compaction ram 51 and the mould 13 in their fully raised positions in which adequate clearance is provided for a cylindrical container 12 (typical capacity 45 gallons ) of intermediate level radioactive waste to be positioned , by suitable means (not shown) such as a remotely operated transfer device , at a predetermined central position on top of the press table 3 .
  • the upper transverse structure 6 is approximately square-shape d in plan view ( Figure 4) and is secured to the four support columns 4 at its four corners.
  • Two ram return cylinders 15 are mounted at the mid-points of two opposite sides of the transverse structure 6 an d project upwardly therefrom.
  • Ram pistons 16 respectively mounted in the hydraulic cylinders 15 , are connected by connecting rods 17 to the ram cross-piece 11, the cross-pieces carrying trunnions 18 which provide pivotal connections between the lower ends of the connecting rods 17 and the ram cross piece 11, so as to accommodate small changes in the relative orientations of the connecting ro d s an d the ram cross-piece when the ram is lowered and raised.
  • the pistons 1 6 When hydraulic fluid is admitted under pressure to the hydraulic cylinders 15, the pistons 1 6 are urged upwardly to effect the return stroke of the ram 9 to its raised position.
  • the return cylinders 15 need only be single-acting, it is preferred that they be double-acting, in or d er that the cross-piece 21 can be raised and lowered when the ram cylinder 7 and its ram piston 8 are taken out o f service for maintenance.
  • two double-acting hydraulic cylinders 19 are mounted at the mid-points of the other pair of opposite sides of the upper transverse structure 6 and project upwardly from the transverse structure.
  • a piston 20 disposed in each do uble-acting hydraulic cylinder 19 is connecte d b y a connecting rod 49, which passes freely through an oversize bore 21 in ram cross-piece li, to mould cross-piece 14, a trunnion 22 providing a pivotal connection between the lower end of connecting ro d 49 and mould cross-piece 14 to accommodate small changes in the relative orientations of the connecting rod 49 and mould cross-piece 14 as the mould 13 is urged up and down the support columns 4 by the action of the double-acting piston/cylinder arrangement 19, 20.
  • the lower end of the ram member 9 is fitted with a replaceable ram plate 23 of hardened steel, designed to withstand as far as possible the very high loading and localised pressure points resulting when the container is being compacted.
  • Locating means e.g. locating lugs received in correspondingly shaped bores formed -in the underside of the ram member 9, serve to locate the ram plate correctly with respect to the ram member 9.
  • a plurality of bolts 24, for example four bolts extend through registering holes or passageways formed in the ram piston 8, ram connecting piece 10 and ram member 9 and are received in complementary screw-threaded bores 55 formed in the top face of the ram plate 23.
  • the bolt heads are tightened against the bottom end surface of an axial blind passage 25 formed centrally from the top face of the ram piston 8 and extending close to the bottom of the ram piston. In this way, the ran plate 23 is releasably secured to the bottom end of the ram 9.
  • This securing arrangement for the ram plate 23 is especially advantageous in that it provides ready access to the bolt heads from the top of the compacter, merely by removing a removable top cover 26 from the ram cylinder. In this way, when the ram plate becomes worn, it can be released from the ram 9 without entering the radioactive environment in which the container is compacted. Furthermore, access to the bolt heads through the open upper end of the ram cylinder 7 is from a working environment for operating personnel as will be described below in more detail. Another advantage is that the bolt heads cannot become clogged with debris and radioactive waste in view of their distancing from the compaction region.
  • the released ram plate falls into the radioactive environment and is taken by for example a conveyor system and/or remote manipulators to a decontamination and maintenance facility. A replacement ram plate is supplied and fitting by essentially the reverse process and is not further described herein.
  • the mould is provided on this inner surface with a liner 27, again of hardened steel.
  • the liner is preferably of single-part construction and is received in a complementary recess formed in the lower section of the mould. As shown in Figure 2, the height of the mould liner is substantially the same as that of the container.
  • the mould liner since the function of the liner is to protect the body of the mould from damage while the function of the mould body is to withstand the stresses exerted on the mould when the drum is compacted by the ram, the mould liner needs to be an interference fit within the mould so that it can transmit stresses to the mould without itself being distorted. To facilitate engagement of the liner 27 with the mould 13 and also removal of the
  • the liner is preferably a taper-fit, so that it can be freely inserted into the mould from below (when the mould is in its raised position) until it becomes an interference fit within the mould body as it approaches its final location within the mould and so that the interference fit is released after the liner has been displaced only a short distance downwardly.
  • the liner is removably secured in place by a plurality of bolts 29 that extend through oversize axial bores 30 formed through the height of the mould and are received in corresponding screw-threaded bores 54 formed in the wall of liner 27. Consequently, the liner wall thickness needs to be sufficient to accommodate the lower ends of the bolts 29. To ensure the liner is located in the correct angular orientation, locating dowels or the like can be used.
  • each bolt head is a split washer 28, in the form of two C-shaped elements (not shown) butted one against the other.
  • the bolts 29 are slackened off slightly so that the split washers can be removed and then the bolts are tightened again until their ends abut with the ends of the bores 54 formed in the mould liner.
  • the lengths of these screwthreaded bores and the bolts are such that the bolt heads are spaced above the top surface of the mould by a short distance.
  • the two (C-shaped) halves of a shim (not shown) are fitted around the central ram member 9 and rest on the protruding bolt heads.
  • Insertion of a replacement liner is essentially a reversal of the dismantling process, and involves transporting the replacement liner to the compacter and raising it into position inside the mould, using a combination of conveyor systems or the like and remote controlled manipulators.
  • Locating means such as the locating dowels mentioned above are preferably used to locate the mould liner in the correct angular orientation. Then, replacement bolts 29 are inserted and tightened up to secure the replacement liner in position in the mould.
  • annular space 52 exists between the inner face of the mould and the outside of the ram member 9.
  • An annular seal 31 carried by the mould seals against the outside surface of ram member 9.
  • An air inlet line 35 including a non-return valve 34 and filter (not shown) , communicates with an annular space 52 just below the seal 31 while an air exhaust line 32, also communicating with the space 52 just below the seal 31, includes a non-return valve 33 and filter (not shown) and passes down through the lower transverse structure 5 and terminates in the environment in which compaction takes place.
  • the upward and downward movement of the mould is accommodated by a telescopic-type, sliding connection 46 in the exhaust line 32.
  • the mould For compacting a container, firstly the mould is lowered around the container until its lower end contacts the press table 3. As the mould is lowered, a small quantity of air is exhausted through exhaust line 32 due to the relative movement between the mould and the ram plate 23. Then the ram is driven downwardly inside the mould, compacting the drum to form a so-called puck and causing air in the mould to be compressed and pass upwardly through the annular space 52 and out through exhaust line 32. Since drums can fracture during compaction and since the space within the mould is filled with air from the radioactive environment in which the compaction is carried out before the ram is lowered, the expelled air contains radioactive contamination which is removed by the filter in air exhaust line 32.
  • the compacter ram is held in its lower position while the mould is raised clear of the top of the puck. This guarantees the separation of the mould from the puck, which can get very tightly lodged in the mould during compaction.
  • non-return valve 33 shuts and non-return valve 34 opens to admit a small quantity of air into the annular space 52.
  • the ram is raised to its raised position and the puck is removed, for example by a conveyor system and/or automatic manipulators (which can also be used for removing and replacing worn mould liners and ram plates, periodically) . Then the next container to be compacted is brought to the press table 3 and the cycle repeated.
  • the compacter is installed in a protective, thick-walled (e.g. 1.2m thick) , concrete cell 36.
  • the interior space within the protective cell is horizontally sub-divided by lower flooring 38 and upper flooring 39 to provide a first environment 40 in which compaction takes place and to which operating personnel are not admitted due to the radioactivity of the waste, a second environment 41, to which operating personnel can have access providing appropriate protective measures are taken (e.g. the wearing of suitable protective clothing) and an upper environment 42 for maintenance of the hydraulic equipment, this environment requiring a lower level of protection for operating personnel.
  • the middle environment 41 is vertically segregated by vertical walls 43 on all four sides of the compacter to define a fourth environment 44.
  • the flooring 38 is made of concrete and contains the radiation from the radioactive waste within the bottom environment 40.
  • the function of the upper flooring 39 and the vertical walls 43 is not to provide this shielding function because the radiation from the waste is absorbed by the concrete walls and floor of the cell and the concrete flooring 38.
  • the upper flooring 39 and the vertical walls 43 serve to segregate and define different environments 41, 42, 44 which are used to control the spread of radioactive contamination, which is present in successively smaller quantities in environments 44, 42 and 41, respectively.
  • cascaded pressures are maintained in the three environments such that the pressure successively increases from the upper environment through the intermediate environment to the lower environment.
  • the bottom environment 40 would be held at an atmospheric depression of say 200 Pa with respect to the middle environment 41, which itself is held at a similar depression to the top environment 42.
  • the flow direction will always be into an environment of potentially higher level of radioactive contamination.
  • a suction path for maintaining reduced pressure in the environment 44 is shown at 53.
  • the lower transverse structure 5 is designed to form a section of the lower flooring 38, to which it is connected in fluid-tight manner.
  • the upper transverse structure 6 forms a section of the upper flooring 39 and is connected to it in :fluid-type manner.
  • a lip seal 47 on the lower transverse structure 5 seals against the outside of the mould and another lip seal 48, carried on the underside of the upper transverse structure 6 seals against the outside of the ram connecting piece 10.
  • Inspection windows such as shown at 45, formed in the cell wall enable operating personnel to view operations taking place within the radioactive, bottom, environment 40, without danger of personnel being exposed to harmful radiation.
  • the ram plate may be held in position by a securing rod extending in a central axial bore in the ram member 9, the rod being connected at its lower end to the ram plate by a bayonet connection and bolted, by means of a flange at its upper end, to the ram member 9 (or alternatively held in position by removable locating dowels) . Relative annular displacement between the ram member 9 and ram plate 23 is prevented by dowel pins.
  • the ram connecting piece 10 is removed from the compacter, the securing rod flange released from the ram member 9 and turned from the top to release the bayonet connection, and, if need be, the rod pushed down against the ram plate to disengage the dowel pins locating the ram plate relative to the ram member.
  • the disclosed compacter is particularly advantageous in that the replaceable mould liner and ram plate can both be released when they are to be replaced, by untightening the respective two sets of securing bolts, whose bolt heads are accessible from the top of the mould and the top of the ram, respectively. Furthermore, there is no risk of the bolt heads becoming clogged with debris and radioactive material, in view of their remote location from the location of the drum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Ce dispositif (1) de compactage de conteneurs renfermant des déchets radioactifs (ou toxiques, ou d'autres déchets dangereux) comprend un moule (13) placé autour d'un conteneur, lequel repose sur une table (3) de presse, ainsi qu'un pilon (9) de compactage qui est entraîné vers le bas afin de compacter le conteneur. On a fixé de manière amovible un chemisage (27) de moule ainsi qu'une plaque (23) de pilon, respectivement sur le moule et sur le pilon, au moyen de boulons (24, 29) de fixation s'étendant respectivement depuis le sommet du moule et celui du pilon. Ainsi, le personnel d'exploitation peut facilement accéder aux têtes de boulons. En outre, il est impossible aux têtes de boulons d'être encrassées par les débris et le matériau radioactif, car elles sont placées à distance du conteneur (12) en cours de compactage.
PCT/EP1995/003922 1995-10-04 1995-10-04 Dispositif de compactage de conteneurs renfermant des dechets dangereux WO1997013254A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1995/003922 WO1997013254A1 (fr) 1995-10-04 1995-10-04 Dispositif de compactage de conteneurs renfermant des dechets dangereux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1995/003922 WO1997013254A1 (fr) 1995-10-04 1995-10-04 Dispositif de compactage de conteneurs renfermant des dechets dangereux

Publications (1)

Publication Number Publication Date
WO1997013254A1 true WO1997013254A1 (fr) 1997-04-10

Family

ID=8166106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/003922 WO1997013254A1 (fr) 1995-10-04 1995-10-04 Dispositif de compactage de conteneurs renfermant des dechets dangereux

Country Status (1)

Country Link
WO (1) WO1997013254A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857899A1 (fr) * 2003-07-22 2005-01-28 Cogema Presse a compacter
WO2005087343A1 (fr) * 2004-03-10 2005-09-22 British Nuclear Fuels Plc Procede de compactage de suspension epaisse par filtration sous pression
US7631758B2 (en) 2005-04-13 2009-12-15 Vaporlok Technology, Llc Shipping and storage containers
DE102019003179A1 (de) * 2019-05-06 2020-11-12 Westinghouse Electric Germany Gmbh Pressvorrichtung zur Kompaktierung von Behältern mit darin befindlichen Stoffen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659691A1 (de) * 1976-12-31 1978-11-16 Kernforschungsz Karlsruhe Beschickungsanlage fuer faesser mit radioaktivem inhalt
EP0124185A1 (fr) * 1983-05-02 1984-11-07 Fontijne Holland B.V. Presse hydraulique pour comprimer des récipients comportant des déchets radioactifs
EP0178802A1 (fr) * 1984-10-02 1986-04-23 Ngk Insulators, Ltd. Appareil pour compression et réduction de volume
EP0202605A1 (fr) * 1985-05-21 1986-11-26 Alsthom Presse pour le compactage de déchets
EP0555131A1 (fr) * 1992-02-03 1993-08-11 Gec Alsthom Acb Presse pour comprimer des fûts de déchets contaminés

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659691A1 (de) * 1976-12-31 1978-11-16 Kernforschungsz Karlsruhe Beschickungsanlage fuer faesser mit radioaktivem inhalt
EP0124185A1 (fr) * 1983-05-02 1984-11-07 Fontijne Holland B.V. Presse hydraulique pour comprimer des récipients comportant des déchets radioactifs
EP0178802A1 (fr) * 1984-10-02 1986-04-23 Ngk Insulators, Ltd. Appareil pour compression et réduction de volume
EP0202605A1 (fr) * 1985-05-21 1986-11-26 Alsthom Presse pour le compactage de déchets
EP0555131A1 (fr) * 1992-02-03 1993-08-11 Gec Alsthom Acb Presse pour comprimer des fûts de déchets contaminés

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857899A1 (fr) * 2003-07-22 2005-01-28 Cogema Presse a compacter
US7178455B2 (en) 2003-07-22 2007-02-20 Compagnie Generale Des Matieres Nucleaires Compacting press
WO2005087343A1 (fr) * 2004-03-10 2005-09-22 British Nuclear Fuels Plc Procede de compactage de suspension epaisse par filtration sous pression
US7631758B2 (en) 2005-04-13 2009-12-15 Vaporlok Technology, Llc Shipping and storage containers
US8047367B2 (en) 2005-04-13 2011-11-01 Vaporlok Technology, Llc Shipping and storage containers
DE102019003179A1 (de) * 2019-05-06 2020-11-12 Westinghouse Electric Germany Gmbh Pressvorrichtung zur Kompaktierung von Behältern mit darin befindlichen Stoffen

Similar Documents

Publication Publication Date Title
DE2251380A1 (de) Vorrichtung und verfahren zum verladen von kernbrennstoff in einen transportbehaelter
DE69630895T2 (de) Verfahren und vorrichtung zum einsperren und zum unterdrücken von sprengstoffdetonationen
EP0034150B1 (fr) Recipient pour le transport de matieres radioactives
EP2168129B1 (fr) Dispositif pour la réparation d' un emplacement endommagé dans la partie de la paroi d' une cuve ou d' un récipient se trouvant sous l' eau
DD153265A5 (de) Verfahren und vorrichtung zum transport und zur lagerung radioaktiver substanzen
CA1190797A (fr) Appareil pour condenser des dechets bio-deleteres
DE3310233A1 (de) Behaeltnis zur lagerung radioaktiver elemente
US3995165A (en) Method of and device for screening the source of rays dangerous to human health
EP2833367A2 (fr) Installation et procédé destinés au traitement de résidus
EP2684194B1 (fr) Dispositif et procédé de réparation d'un emplacement endommagé dans une partie de paroi immergée d'un réservoir ou d'un bassin
US12217881B2 (en) Storage and transport cask for nuclear waste
WO1997013254A1 (fr) Dispositif de compactage de conteneurs renfermant des dechets dangereux
DE3319698A1 (de) Transportierbare presse zum hochverdichten radioaktiver abfallstoffe von kernkraftwerken und verfahren zum pressen
GB2292477A (en) Compacter for compacting containers containing radioactive, toxic or other hazardous waste
CH628176A5 (en) Method and device for storing irradiated or spent fuel elements from pressurised water and boiling water nuclear reactors
EP0213228A1 (fr) Dispositif de soulèvement pour transporteurs à rouleaux permettant le changement de direction d'une palette
DE3317680C1 (de) Hydraulische Presse
KR930008247B1 (ko) 핵 폐기물 포장 모듈
WO1980002469A1 (fr) Procede pour le transport et le stockage de matieres radioactives
US3086257A (en) Door swinging device which makes it possible to move heavy doors with a reduced effort
RU2181511C2 (ru) Установка для спрессовывания емкостей с радиоактивным материалом
KR20140115732A (ko) 수직형 방사성 폐기물 압축저장장치 및 방법
DE2824240A1 (de) Verfahren zur handhabung abgebrannter brennelemente, transport- und/oder lagerbehaelter zum transportieren und/oder lagern von brennelementen, sowie in verbindung mit dem verfahren verwendbare wiederaufbereitungsanlage
JP2839575B2 (ja) 廃棄物の圧縮用の設備
Williams Supercompaction of dry active waste: An overview

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP KR RU UA US

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载