EP0035662B1 - Process for conditioning biologically dangerous wastes - Google Patents

Process for conditioning biologically dangerous wastes Download PDF

Info

Publication number
EP0035662B1
EP0035662B1 EP81101006A EP81101006A EP0035662B1 EP 0035662 B1 EP0035662 B1 EP 0035662B1 EP 81101006 A EP81101006 A EP 81101006A EP 81101006 A EP81101006 A EP 81101006A EP 0035662 B1 EP0035662 B1 EP 0035662B1
Authority
EP
European Patent Office
Prior art keywords
waste
containers
agitator
filling
storage container
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.)
Expired
Application number
EP81101006A
Other languages
German (de)
French (fr)
Other versions
EP0035662A2 (en
EP0035662A3 (en
Inventor
Herbert Dr. Dipl.-Chem. Brunner
Bernhard Dr. Dipl.-Chem. Christ
Wilhelm Henss
Werner Ing. Grad. Pfeifer
Klaus Scheuermann
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.)
Transnuklear GmbH
Original Assignee
Transnuklear GmbH
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 Transnuklear GmbH filed Critical Transnuklear GmbH
Publication of EP0035662A2 publication Critical patent/EP0035662A2/en
Publication of EP0035662A3 publication Critical patent/EP0035662A3/en
Application granted granted Critical
Publication of EP0035662B1 publication Critical patent/EP0035662B1/en
Expired legal-status Critical Current

Links

Images

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
    • G21F9/36—Disposal of solid waste by packaging; by baling

Definitions

  • the present invention relates to a mobile device for conditioning bio-harmful, in particular radioactive, waste, consisting of a work space with containers surrounded by variable shields for receiving and metering the waste, which has a sloping floor running out into a sump, conveying and monitoring devices for the waste and the additives, from a filling station for filling the repository and a programmable controller.
  • Waste is generated in many areas of life that is inherently toxic, radioactive or otherwise environmentally harmful. These wastes, which must be treated and stored according to the relevant laws, include, for example, nuclear power plant wastes, scientific and medical wastes from industry, research centers and hospitals, as well as other chemical-biological wastes. Waste treatment takes place predominantly at the site of the waste generation, often with mobile conditioning devices.
  • DE-A-2 637 858 describes a stationary device for conditioning radioactive waste, consisting of a work space with containers for receiving and metering the waste, conveying devices for the waste and filling stations for filling the final storage container.
  • the object was achieved according to the invention in that the coupling of the repository containers provided with an installed stirrer to the stirrer drive of the system takes place by means of a lifting carriage which carries a drive unit, a coupling for the stirrer, a waste feed line, an exhaust air line, a positioning device and locking pins, whereby a flat iron with several driver bolts and a centering pin is used as a coupling for the stirrer, and the openings of the waste supply line and the exhaust air line are released and closed by pivoting pans, which are pivotably connected to the lifting slide via springs and cam grooves.
  • the device according to the invention is schematically explained in more detail in exemplary embodiments in FIGS. 1 to 11.
  • the waste conditioning device (1) has a work space (2), the ceiling (19) of which is set up as an assembly opening.
  • the work area (2) contains containers (5, 6) for receiving and metering the bio-harmful waste.
  • the containers (5, 6) are filled, for example, via a connection (48) for spherical resin waste and via a connection (49) for sludge.
  • a connection (50) is used to supply deionized water.
  • the radiation protection shield (7) around the containers (6, 5) is designed to be variable, for example from lead blocks, depending on the intended use of the device according to the invention.
  • the container arrangement in such a way that in the event that only one of the containers (6, 5) is used occasionally, the other container with appropriate filling, eg. B. with water or suitable bulk material, acts as a shield for the second container.
  • the radioactive waste is taken up into the containers (6, 5) by means of supply devices (16, 17), metered and then conveyed to the filling stations (57, 58), where the waste in final storage containers (8) containing the solidifying agent presented, be filled and solidified.
  • the device (1) according to the invention preferably contains several filling stations (57, 58), so that an efficient workflow is possible.
  • a lifting carriage (9) lowers onto an intermediate cover (30) and is coupled there.
  • the final storage container (8) advantageously standing in a shielding container (47)
  • a transport vehicle (44) which is fixed in the filling station.
  • the lifting carriage (9) rises and a lid placement device (51) closes the container.
  • the final storage container is then removed.
  • the interior of the work space (2) has an inclined floor (4) that runs out into a sump (3). The leakages that may accumulate in the sump (3) are monitored by a measuring instrument (18).
  • Operation is advantageously carried out via a control panel (52) which is connected to the device (1) via a flexible cable (53).
  • the device (1) has container mass and is therefore easy to transport and can be used variably.
  • the control of the device is freely programmable, hard-wired contactor controls are missing.
  • the compact design is achieved, on the other hand, waste program changes can be made quickly.
  • the correct execution of the commands is ensured by an electronic cycle check. In the event of delay or incorrect positions, e.g. of valves, etc., the power outputs of the control block until the fault is eliminated and acknowledged. In the event of malfunctions, the device therefore always goes into the safe state.
  • the final storage container (8) with an intermediate cover (30), which has a passage for the upper end to be coupled, a stirrer shaft (70) designed as a tube of the stirrer (54) installed in the final storage container (8) as well as an opening for the waste inlet (59) and the exhaust air (65) contains, for. B. by stacker, in the filling and mixing position on a transport vehicle (44) with pedestal (45) and positioned with the help of a positioning device (14), which contains light pointers, by moving and rotating.
  • the stirrer (54) is centered by means of a coupling (11) and coupled to the drive shaft of the drive unit (10), and locking pins (15) in retaining tabs (82), which are, for example located on the intermediate cover (30).
  • the downward movement of the lifting carriage (9) is stopped via limit switches; the waste supply line (12), which, like the exhaust air line (13), is inserted into the corresponding openings (59, 65), is released by a switch contact.
  • the lifting carriage (9) moves upwards from its operating position to its rest position. During this upward movement, the swivel pans (25) are swiveled back under the waste supply and exhaust air line (12, 13) and pressed against the seals (28). The filled final storage container (8) is then suitably closed with an end cover (80) and transported away.
  • the swivel pan (25) is fastened to an axis (66) which contains a pin (67) guided in a curved groove (27), so that a spring element can be tensioned or relaxed (26) the pivoting process is triggered.
  • the axis (66) is guided in a guide element (68). It is also particularly convenient, e.g. B. via a connection (69) to press the swivel pans (25) pneumatically to the seals (28).
  • the design of the stirrer coupling (11) with a flat iron (31) and 2-4 drive pins (32) and a centering pin (33) has proven to be particularly favorable due to the robustness, as has the use of two light pointers for the positioning device (14).
  • the centering pin (33) centers the stirrer (54) by moving its tip into the upper open end of the stirrer axis (70), while the driver bolts (32) fasten an element (71), for example a welded one, to the upper end of the stirrer axis (70) Flat iron, rotate in the coupled operating state and thus drive the stirrer (54).
  • the drive unit (10) for the built-in stirrer (54) of the final storage container (8) is preferably connected to a force measuring device (55).
  • the tube (34) of the waste feed line (12) contains a plug valve (35) as a closure, which is connected to a drive (38) via a shaft (36).
  • the shaft (36) is guided through the tube (34) by means of a sealed bushing (37).
  • the drive (38), attached to a holding device (83), permits the axial movement of the plug valve (35) and thus the opening or closing upon a corresponding control command the tube (34).
  • the cone valve (35) protrudes into the bearing barrel and, via the circular opening thus formed, formed from the end of the tube (34) provided with a sealing surface (39) and the conical jacket sealing surface (40), gives the bio-harmful or radioactive good (72) free.
  • the conical jacket sealing surface (40) seals with the sealing surface (39) at the end of the tube (34), whereby sealing surfaces made of metal have proven particularly effective, so that the tube (34) can be safely lifted by means of the lifting carriage (9) can be moved away from the filling opening (59) in the intermediate cover (30).
  • the drive (38) consists of a compressed air cylinder (41) and a return spring (42) with which the axial movement of the plug valve (35) is carried out.
  • the stroke of this axial movement is expediently limited so that it is less than the axial length of the sealed bushing (37).
  • the spherical shape of the bottom (43) of the cone valve (35) is of particular advantage.
  • the containers (5, 6) and / or the shielding container (47) are double-walled with a fillable cavity lying between the walls.
  • a cavity (22) which can be filled with suitable radiation protection material.
  • the double wall (20, 21) is attached to a solid floor (60), but the floor can also be designed as a double wall in special cases.
  • Spacers (61) have proven particularly advantageous for stabilizing and maintaining the geometry of the fillable cavity (22), the spacers (61) expediently forming an angle with respect to the container radius.
  • the cavity (22) only needs to be filled with water, suitable solutions or bulk material or other radiation-absorbing materials at the place of use. Additional inlet (62) and outlet devices (63) have proven to be particularly favorable for filling and later emptying the cavity (22).
  • the subdivision of the cavity (22) by concentric walls (24) into a plurality of concentric chambers (23) is particularly advantageous.
  • the container (5, 6, 47) can optionally be filled by filling the cavity with concrete or the like. be redirected in a so-called "lost concrete shielding."
  • the insert has thereby a sheet of diffusionshemmendem material, for example aluminum sheet against tritium, proved.
  • the spacers (61) serve additionally as reinforcement .
  • the transport vehicle (44) has turned out to be a particularly favorable structural element of the device according to the invention in the filling stage of the final storage containers (8).
  • a shielding container (47) which contains the final storage container (8).
  • Tubular elements (74) are mounted on the base (45) and are designed as hydraulic cylinders on the inside. Hydraulic pistons (75) are fitted into the tubular elements (74), on the underside of which there is a spherical element (46) which is movably and suitably supported on all sides.
  • the hydraulic medium is conveyed through an opening (76) into a cylinder space (77) by means of a pump and feed.
  • the base (45) with the load is raised so that the ball elements (46) can be moved on all sides on the floor (78) and the base (45) with the load can be brought quickly and precisely into the filling position. In the filling position, the base (45) is lowered again and is now firmly on the floor (78).
  • Systems such as conveyor belts, roller conveyors and the like can therefore be dispensed with. This means that mobile waste conditioning systems also dispense with considerable transport weight and generally at least partial decontamination effort. It is advisable to connect the hydraulic drive to the ball elements (46) via a common ring line.
  • the ball elements (46) can also be countersunk in a mechanical or electrical manner, although the hydraulic adjustment has proven to be particularly favorable.
  • the annular design of the base (45) and the use of three retractable spherical elements (46) on the base surface (79) of the base (45) are also particularly advantageous.
  • the cover placement device (51) uses a gripping device (56) to place the end cover (80) on the final storage container (8).
  • the centering is carried out remotely with suitable devices, as is the locking.
  • the gripping device (56) preferably works by means of a suction device or in a magnetic manner.
  • the cover placement device (51) is positioned by drives. Since the filling stations (57, 58) can be largely shielded from one another and from the environment in accordance with the radiation protection requirements by partially variable shielding walls (81), the positioning can also be carried out manually in some cases.

Landscapes

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

Description

Gegenstand der vorliegenden Erfindung ist eine mobile Vorrichtung zur Konditionierung bioschädlicher, insbesondere radioaktiver Abfälle, bestehend aus einem Arbeitsraum mit von variablen Abschirmungen umgebenen Behältern zur Aufnahme und Dosierung der Abfälle, der einen in einen Sumpf auslaufenden schrägen Boden besitzt, Förder- und Überwachungseinrichtungen für die Abfälle und die Zusatzstoffe, aus einer Abfüllstation zur Befüllung der Endlagerbehälter und einer programmierbaren Steuerung.The present invention relates to a mobile device for conditioning bio-harmful, in particular radioactive, waste, consisting of a work space with containers surrounded by variable shields for receiving and metering the waste, which has a sloping floor running out into a sump, conveying and monitoring devices for the waste and the additives, from a filling station for filling the repository and a programmable controller.

In zahlreichen Lebensbereichen entstehen Abfälle, die ihrer Natur nach toxisch, radioaktiv oder auf andere Weise umweltbelastend sind. Zu diesen Abfällen, die aufgrund einschlägiger Gesetzte besonders zu behandeln und zu lagern sind, gehören beispielsweise Kernkraftwerksabfälle, wissenschaftliche und medizinische Abfälle aus Industrie, Forschungszentren und Krankenhäusern, sowie andere chemischbiologische Abfälle. Die Abfallbehandlung erfolgt überwiegend am Ort des Abfallanfalles, häufig mit mobilen Konditionierungsvorrichtungen.Waste is generated in many areas of life that is inherently toxic, radioactive or otherwise environmentally harmful. These wastes, which must be treated and stored according to the relevant laws, include, for example, nuclear power plant wastes, scientific and medical wastes from industry, research centers and hospitals, as well as other chemical-biological wastes. Waste treatment takes place predominantly at the site of the waste generation, often with mobile conditioning devices.

Es sind eine ganze Reihe von Verfahren bekannt, nach denen die genannten Abfälle deponierfähig verfestigt werden können. Die Anwendung des jeweiligen Verfestigungsverfahrens ist dabei hauptsächlich von der Art des Abfalles abhängig. Solche Konditionierverfahren und Vorrichtungen dazu werden in mehreren Veröffentlichungen beschrieben (z. B. DE-B-1 199414, DE-B-1 771 244, DE-A-2 228 938, DE-A-2 249 563, NL-C-40 837, DE-A-2 421 142, DE-U-7711 596.A whole series of processes are known by which the waste mentioned can be solidified in a landfill. The application of the respective consolidation process mainly depends on the type of waste. Such conditioning methods and devices therefor are described in several publications (e.g. DE-B-1 199414, DE-B-1 771 244, DE-A-2 228 938, DE-A-2 249 563, NL-C- 40 837, DE-A-2 421 142, DE-U-7711 596.

In der DE-A-2 637 858 wird beispielsweise eine ortsfeste Vorrichtung zur Konditionierung radioaktiver Abfälle beschrieben, bestehend aus einem Arbeitsraum mit Behältern zur Aufnahme und Dosierung der Abfälle, Fördereinrichtungen für die Abfälle und Abfüllstationen zur Befüllung der Endlagerbehälter.DE-A-2 637 858, for example, describes a stationary device for conditioning radioactive waste, consisting of a work space with containers for receiving and metering the waste, conveying devices for the waste and filling stations for filling the final storage container.

Ausserdem ist es aus der DE-A-2 629 384 bekannt, beim Konditionieren radioaktiver Abfallflüssigkeiten in mit Rührern versehenen Endlagerbehältern, diese mit einem Rührerantrieb zu koppeln.Furthermore, it is known from DE-A-2 629 384, when conditioning radioactive waste liquids in final storage containers provided with stirrers, to couple them to a stirrer drive.

Bei den bekannten Konditioniervorrichtungen sind insbesondere nachteilig ihr wenig kompakter Aufbau, der Kontaminationsprobleme mit sich bringt, zusätzlich ein durch aufwendige Endlagerbehälter-Fördereinrichtungen bedingtes hohes Transportgewicht, weiterhin die nur begrenzten variablen Einsatzmöglichkeiten hinsichtlich der Konditionierung von Abfällen unterschiedlicher Radioaktivität, ferner, im Hinblick auf Störfälle und auf die Freisetzung von flüchtigen oder aerosol- bzw. staubförmigen Schadstoffen, die bestehenden sicherheitstechnischen Ausgestaltungen. Auch die bekannten Rührerankopplungen erfüllen nicht die geforderten Bedingungen.In the known conditioning devices are particularly disadvantageous their less compact structure, which brings with it contamination problems, in addition a high transport weight due to elaborate repository container conveyors, furthermore the only limited variable possible uses with regard to the conditioning of waste of different radioactivity, furthermore, with regard to accidents and on the release of volatile or aerosol or dust-like pollutants, the existing safety-related designs. The known stirrer couplings also do not meet the required conditions.

Es war daher Aufgabe der vorliegenden Erfindung, eine Vorrichtung zur Konditionierung bioschädlicher, insbesondere radioaktiver Abfälle, bestehend aus einem Arbeitsraum mit von variablen Abschirmungen umgebenen Behältern zur Aufnahme und Dosierung der Abfälle, der einen in einem Sumpf auslaufenden schrägen Boden besitzt, Förder- und Überwachungseinrichtungen für die Abfälle und die Zusatzstoffe, einer Abfüllstation zur Befüllung der Endlagerbehälter und einer programmierbaren Steuerung, zu schaffen, die kompakt ausgelegt, ein relativ niedriges Transportgewicht aufweist, einen variablen Einsatz zulässt, arbeitsmässig rationell ausgestaltet und sicherheitstechnisch vorteilhaft ist.It was therefore an object of the present invention to provide a device for conditioning bio-harmful, in particular radioactive waste, consisting of a work space with containers surrounded by variable shields for receiving and metering the waste, which has a sloping floor running out in a swamp, conveying and monitoring devices for to create the waste and additives, a filling station for filling the final storage containers and a programmable control system, which is compact in design, has a relatively low transport weight, permits variable use, is rational in terms of work and is advantageous in terms of safety.

Die Aufgabe wurde erfindungsgemäss dadurch gelöst, dass die Ankupplung der mit einem eingebauten Rührer versehenen Endlagerbehälter an den Rührerantrieb der Anlage mittels eines Hubschlittens erfolgt, der ein Antriebsaggregat, eine Kupplung für den Rührer, eine Abfallzufuhrleitung, eine Abluftleitung, eine Positioniereinrichtung und Arretierstifte trägt, wobei als Kupplung für den Rührer ein Flacheisen mit mehreren Mitnehmerbolzen und einem Zentrierstift verwendet wird, und die Öffnungen der Abfallzuführungsleitung und der Abluftleitung durch Schwenkpfannen, die über Federn und Kurvennuten mit dem Hubschlitten schwenkbar verbunden sind, freigegeben und verschlossen werden.The object was achieved according to the invention in that the coupling of the repository containers provided with an installed stirrer to the stirrer drive of the system takes place by means of a lifting carriage which carries a drive unit, a coupling for the stirrer, a waste feed line, an exhaust air line, a positioning device and locking pins, whereby a flat iron with several driver bolts and a centering pin is used as a coupling for the stirrer, and the openings of the waste supply line and the exhaust air line are released and closed by pivoting pans, which are pivotably connected to the lifting slide via springs and cam grooves.

Die erfindungsgemässe Vorrichtung ist in den Abbildungen 1 bis 11 schematisch in beispielhaften Ausführungsformen näher erläutert.The device according to the invention is schematically explained in more detail in exemplary embodiments in FIGS. 1 to 11.

Es zeigenShow it

  • Abb. eine Seitenansicht der erfindungsgemässen Vorrichtung,Fig. A side view of the device according to the invention,
  • Abb. 2 eine Draufsicht der erfindungsgemässen Vorrichtung,2 a top view of the device according to the invention,
  • Abb. 3-5 Aufnahme- und Dosierbehälter,Fig. 3-5 Storage and dosing containers,
  • Abb. 6-8 Hubschlitten mit zugehörigen Einrichtungen,Fig. 6-8 Lift carriage with associated equipment,
  • Abb. 9 Rohrverschluss der Abfallzuführleitung, Abb. 10, 11 Transportfahrzeug für die Endlagerbehälter.Fig. 9 Pipe closure of the waste supply line, Fig. 10, 11 transport vehicle for the repository.

Die erfindungsgemässe Abfallkonditionierungsvorrichtung (1) weist einen Arbeitsraum (2) auf, dessen Decke (19) als Montageöffnung eingerichtet ist. Der Arbeitsraum (2) enthält neben Hilfsvorrichtungen Behälter (5, 6) zur Aufnahme und Dosierung der bioschädlichen Abfälle. Die Befüllung der Behälter (5, 6) erfolgt beispielsweise über einen Anschluss (48) für Kugelharz-Abfälle und über einen Anschluss (49) für Schlämme. Ein Anschluss (50) dient der Versorgung mit deionisiertem Wasser. Die Strahlenschutzabschirmung (7) um die Behälter (6, 5) ist variabel gestaltet, z.B. aus Bleibausteinen, je nach Einsatzzweck der erfindungsgemässen Vorrichtung. Es ist besonders vorteilhaft, die Behälteranordnung so zu gestalten, dass für den Fall, dass fallweise nur einer der Behälter (6, 5) verwendet wird, der andere Behälter bei entsprechender Befüllung, z. B. mit Wasser oder geeignetem Schüttgut, als Abschirmung für den zweiten Behälter wirkt. Mittels Versorgungseinrichtungen (16, 17) werden die radioaktiven Abfälle in die Behälter (6, 5) aufgenommen, dosiert und anschliessend in die Befüllstationen (57, 58) gefördert, wo die Abfälle in Endlagerbehältern (8), die vorgelegtes Verfestigungsmittel enthalten, gefüllt und verfestigt werden. Die erfindungsgemässe Vorrichtung (1) enthält vorzugsweise mehrere Befüllstationen (57, 58), so dass ein rationeller Arbeitsablauf möglich ist. Zweckmässig ist auch die Verwendung der einen Befüllstation (57) für Kugelharzabfälle, der anderen Befüllstation (58) für Schlammabfälle. Vor dem Befüllen der Endlagerbehälter (8) senkt sich ein Hubschlitten (9) auf einen Zwischendeckel (30) ab und wird dort angekuppelt. Während des Befüllens befindet sich der Endlagerbehälter (8), vorteilhafterweise in einem Abschirmbehälter (47) stehend, auf einem Transportfahrzeug (44), das in der Befüllstation fixiert ist. Nach dem Befüllen hebt sich der Hubschlitten (9), und eine Deckelaufsetzvorrichtung (51) schliesst den Behälter. Anschliessend wird der Endlagerbehälter abtransportiert. Das Innere des Arbeitsraumes (2) besitzt einen in einem Sumpf (3) auslaufenden schrägen Boden (4). Die sich gegebenenfalls im Sumpf (3) ansammelnden Leckagen werden durch ein Messinstrument (18) überwacht. Vorteilhafterweise erfolgt die Bedienung über ein Bedienungspult (52), das über ein flexibles Kabel (53) mit der Vorrichtung (1) verbunden ist. Die Vorrichtung (1) hat Containermasse und ist daher gut transportierbar und variabel einsetzbar. Die Steuerung der Vorrichtung ist freiprogrammierbar, festverdrahtete Schützsteuerungen fehlen. Dadurch wird einmal die kompakte Bauweise erreicht, zum anderen können Abfallprogrammänderungen schnell erfolgen. Durch elektronische Zyklusprüfung ist die korrekte Ausführung der Befehle sichergestellt. Bei Verzug oder bei Fehlstellungen, z.B. von Ventilen usw., sperren die Leistungsausgänge der Steuerung bis zur Beseitigung der Störung und Quittierung. Die Vorrichtung geht also bei Störungen immer in den sicheren Zustand über.The waste conditioning device (1) according to the invention has a work space (2), the ceiling (19) of which is set up as an assembly opening. In addition to auxiliary devices, the work area (2) contains containers (5, 6) for receiving and metering the bio-harmful waste. The containers (5, 6) are filled, for example, via a connection (48) for spherical resin waste and via a connection (49) for sludge. A connection (50) is used to supply deionized water. The radiation protection shield (7) around the containers (6, 5) is designed to be variable, for example from lead blocks, depending on the intended use of the device according to the invention. It is particularly advantageous to design the container arrangement in such a way that in the event that only one of the containers (6, 5) is used occasionally, the other container with appropriate filling, eg. B. with water or suitable bulk material, acts as a shield for the second container. The radioactive waste is taken up into the containers (6, 5) by means of supply devices (16, 17), metered and then conveyed to the filling stations (57, 58), where the waste in final storage containers (8) containing the solidifying agent presented, be filled and solidified. The device (1) according to the invention preferably contains several filling stations (57, 58), so that an efficient workflow is possible. It is also expedient to use one filling station (57) for spherical resin waste and the other filling station (58) for sludge waste. Before the final storage container (8) is filled, a lifting carriage (9) lowers onto an intermediate cover (30) and is coupled there. During filling, the final storage container (8), advantageously standing in a shielding container (47), is located on a transport vehicle (44) which is fixed in the filling station. After filling, the lifting carriage (9) rises and a lid placement device (51) closes the container. The final storage container is then removed. The interior of the work space (2) has an inclined floor (4) that runs out into a sump (3). The leakages that may accumulate in the sump (3) are monitored by a measuring instrument (18). Operation is advantageously carried out via a control panel (52) which is connected to the device (1) via a flexible cable (53). The device (1) has container mass and is therefore easy to transport and can be used variably. The control of the device is freely programmable, hard-wired contactor controls are missing. On the one hand, the compact design is achieved, on the other hand, waste program changes can be made quickly. The correct execution of the commands is ensured by an electronic cycle check. In the event of delay or incorrect positions, e.g. of valves, etc., the power outputs of the control block until the fault is eliminated and acknowledged. In the event of malfunctions, the device therefore always goes into the safe state.

Die Gestaltung der einzelnen Komponenten der Vorrichtung (1) ist in den Abbildungen 3 bis 11 detailliert dargestellt.The design of the individual components of the device (1) is shown in detail in Figures 3 to 11.

Der Endlagerbehälter (8) mit einem Zwischendeckel (30), der eine Durchführung für das anzukuppelnde obere Ende einer als Rohr ausgebildeten Rührerachse (70) des im Endlagerbehälter (8) eingebauten Rührers (54) sowie je eine Öffnung für den Abfallzulauf (59) und die Abluft (65) enthält, wird, z. B. mittels Stapler, in der Befüll- und Mischposition auf ein Transportfahrzeug (44) mit Untersatz (45) abgesetzt und mit Hilfe einer Positioniereinrichtung (14), die Lichtzeiger enthält, durch Verschieben und Drehen positioniert. Durch Absenken des Hubschlittens (9) werden in einem Schritt als Tropfschutz dienende Schwenkpfannen (25), die sich unter der Abfallzuführleitung (12) und unter der Abluftleitung (13) befinden, weggeschwenkt, der Rührer (54) mittels Kupplung (11) zentriert und an die Antriebswelle des Antriebsaggregats (10) angekuppelt, und Fassarretierstifte (15) in Haltelaschen (82), die sich z.B. am Zwischendeckel (30) befinden, eingefahren. Über Endschalter wird die Abwärtsbewegung des Hubschlittens (9) gestoppt; die Abfallzuführleitung (12), die wie auch die Abluftleitung (13) in die entsprechenden Öffnungen (59, 65) eingefahren ist, wird durch einen Schaltkontakt freigegeben. Dabei hat es sich als besonders günstig erwiesen, die Enden der Leitungen (12, 13) mit Dichtungen (28) auszustatten, die mittels Federn (29) auf den Zwischendeckel (30) gepresst werden. Der Schaltkontakt zur Freigabe der Abfallzuführleitung (12) kann zweckmässig in die Dichtungen (28) integriert werden.The final storage container (8) with an intermediate cover (30), which has a passage for the upper end to be coupled, a stirrer shaft (70) designed as a tube of the stirrer (54) installed in the final storage container (8) as well as an opening for the waste inlet (59) and the exhaust air (65) contains, for. B. by stacker, in the filling and mixing position on a transport vehicle (44) with pedestal (45) and positioned with the help of a positioning device (14), which contains light pointers, by moving and rotating. By lowering the lifting carriage (9), swiveling pans (25), which are located under the waste feed line (12) and under the exhaust air line (13), are pivoted away in one step, the stirrer (54) is centered by means of a coupling (11) and coupled to the drive shaft of the drive unit (10), and locking pins (15) in retaining tabs (82), which are, for example located on the intermediate cover (30). The downward movement of the lifting carriage (9) is stopped via limit switches; the waste supply line (12), which, like the exhaust air line (13), is inserted into the corresponding openings (59, 65), is released by a switch contact. It has proven particularly favorable to provide the ends of the lines (12, 13) with seals (28) which are pressed onto the intermediate cover (30) by means of springs (29). The switch contact for releasing the waste supply line (12) can be expediently integrated into the seals (28).

Nach Beendigung des Dosier- und Mischvorganges fährt der Hubschlitten (9) aus seiner Betriebsposition nach oben in seine Ruheposition zurück. Während dieser Aufwärtsbewegung werden die Schwenkpfannen (25) unter die Abfallzuführ- und Abluftleitung (12, 13) zurückgeschwenkt und an die Dichtungen (28) angepresst. Der befüllte Endlagerbehälter (8) wird abschliessend mit einem Enddeckel (80) geeignet verschlossen und abtransportiert.After the dosing and mixing process has ended, the lifting carriage (9) moves upwards from its operating position to its rest position. During this upward movement, the swivel pans (25) are swiveled back under the waste supply and exhaust air line (12, 13) and pressed against the seals (28). The filled final storage container (8) is then suitably closed with an end cover (80) and transported away.

Als besonders vorteilhaft hat es sich gezeigt, wenn die Schwenkpfanne (25) an einer Achse (66), die einen in einer Kurvennut (27) geführten Stift (67) enthält, befestigt ist, so dass mit Hilfe des Spannens bzw. Entspannens eines Federelementes (26) der Schwenkvorgang ausgelöst wird. Die Führung der Achse (66) erfolgt in einem Führungselement (68). Es ist auch besonders günstig, z. B. über einen Anschluss (69), die Schwenkpfannen (25) pneumatisch an die Dichtungen (28) anzupressen.It has proven to be particularly advantageous if the swivel pan (25) is fastened to an axis (66) which contains a pin (67) guided in a curved groove (27), so that a spring element can be tensioned or relaxed (26) the pivoting process is triggered. The axis (66) is guided in a guide element (68). It is also particularly convenient, e.g. B. via a connection (69) to press the swivel pans (25) pneumatically to the seals (28).

Die Ausgestaltung der Rührerkupplung (11) mit einem Flacheisen (31) sowie 2-4 Mitnehmerbolzen (32) und einem Zentrierstift (33) hat sich wegen der Robustheit als besonders günstig erwiesen, ebenso die Verwendung von zwei Lichtzeigern für die Positioniereinrichtung (14). Der Zentrierstift (33) zentriert den Rührer (54) durch Hineinfahren seiner Spitze in das obere offene Ende der Rührerachse (70), während die Mitnehmerbolzen (32) ein am oberen Ende der Rührerachse (70) befestigtes Element (71), beispielsweise ein angeschweisstes Flacheisen, im angekuppelten Betriebszustand drehend mitbewegen und also den Rührer (54) antreiben.The design of the stirrer coupling (11) with a flat iron (31) and 2-4 drive pins (32) and a centering pin (33) has proven to be particularly favorable due to the robustness, as has the use of two light pointers for the positioning device (14). The centering pin (33) centers the stirrer (54) by moving its tip into the upper open end of the stirrer axis (70), while the driver bolts (32) fasten an element (71), for example a welded one, to the upper end of the stirrer axis (70) Flat iron, rotate in the coupled operating state and thus drive the stirrer (54).

Vorzugsweise ist das Antriebsaggregat (10) für den eingebauten Rührer (54) des Endlagerbehälters (8) mit einem Kraftmessgerät (55) verbunden.The drive unit (10) for the built-in stirrer (54) of the final storage container (8) is preferably connected to a force measuring device (55).

Damit ist es möglich, die sich beim Rühren des Gemisches aus Abfall, Verfestigungsmittel und Flüssigkeit ändernden Gemischeigenschaften, z.B. Viskosität, als Steuerungsmöglichkeit der Konditionierung auszunutzen.It is thus possible to change the properties of the mixture which change when the mixture of waste, solidifying agent and liquid is stirred, e.g. Viscosity to be used as a control option for conditioning.

Beim Wechsel der Endlagerbehältergrösse hat sich die verschiebbare Anordnung der Arretierstifte (15) am Hubschlitten (9) besonders vorteilhaft bewährt.When changing the size of the repository, the displaceable arrangement of the locking pins (15) on the lifting slide (9) has proven particularly advantageous.

Als besonders günstig hat es sich erwiesen, wenn das Rohr (34) der Abfallzuführleitung (12) als Verschluss ein Kegelventil (35) enthält, das über einen Schaft (36) mit einem Antrieb (38) verbunden ist. Der Schaft (36) ist mittels dichter Durchführung (37) durch das Rohr (34) geführt. Der Antrieb (38), an einer Haltevorrichtung (83) befestigt, gestattet auf einen entsprechenden Steuerbefehl hin die axiale Bewegung des Kegelventils (35) und damit das Öffnen bzw. Schliessen des Rohres (34). In Öffnungsposition ragt das Kegelventil (35) in das Lagerfass hinein und gibt über die so entstehende kreisringförmige Öffnung, gebildet aus dem mit einer Dichtfläche (39) versehenen Ende des Rohres (34) und der Kegelmantel-Dichtfläche (40), das bioschädliche bzw. radioaktive Gut (72) frei. In Verschlussposition nach dem Befüllen dichtet die Kegelmantel-Dichtfläche (40) mit der Dichtfläche (39) am Ende des Rohres (34), wobei sich Dichtflächen aus Metall besonders bewährt haben, so dass das Rohr (34) mittels des Hubschlittens (9) gefahrlos von der Befüllöffnung (59) im Zwischendeckel (30) weggefahren werden kann.It has proven to be particularly favorable if the tube (34) of the waste feed line (12) contains a plug valve (35) as a closure, which is connected to a drive (38) via a shaft (36). The shaft (36) is guided through the tube (34) by means of a sealed bushing (37). The drive (38), attached to a holding device (83), permits the axial movement of the plug valve (35) and thus the opening or closing upon a corresponding control command the tube (34). In the open position, the cone valve (35) protrudes into the bearing barrel and, via the circular opening thus formed, formed from the end of the tube (34) provided with a sealing surface (39) and the conical jacket sealing surface (40), gives the bio-harmful or radioactive good (72) free. In the closed position after filling, the conical jacket sealing surface (40) seals with the sealing surface (39) at the end of the tube (34), whereby sealing surfaces made of metal have proven particularly effective, so that the tube (34) can be safely lifted by means of the lifting carriage (9) can be moved away from the filling opening (59) in the intermediate cover (30).

Es hat sich als besonders günstig herausgestellt, wenn der Antrieb (38) aus einem Druckfluftzylinder (41) und einer Rückholfeder (42) besteht, mit denen die axiale Bewegung des Kegelventils (35) ausgeführt wird. Zweckmässig ist der Hub dieser axialen Bewegung so begrenzt, dass er geringer ist als die axiale Länge der dichten Durchführung (37). In manchen Fällen ist auch die ballige Formung des Bodens (43) des Kegelventils (35) von besonderem Vorteil.It has proven to be particularly favorable if the drive (38) consists of a compressed air cylinder (41) and a return spring (42) with which the axial movement of the plug valve (35) is carried out. The stroke of this axial movement is expediently limited so that it is less than the axial length of the sealed bushing (37). In some cases, the spherical shape of the bottom (43) of the cone valve (35) is of particular advantage.

Es ist besonders vorteilhaft, wenn die Behälter (5, 6) und/oder der Abschirmbehälter (47) doppelwandig mit einem zwischen den Wandungen liegenden, befüllbaren Hohlraum ausgebildet sind. Zwischen der Doppelwand (20, 21) befindet sich ein Hohlraum (22), der mit jeweils geeignetem Strahlenschutzmaterial befüllt werden kann. Die Doppelwand (20, 21) ist an einem massiven Boden (60) befestigt, jedoch kann auch der Boden in besonderen Fällen ebenfalls als Doppelwand ausgebildet sein. Zur Stabilisierung und zur Erhaltung der Geometrie des befüllbaren Hohlraumes (22) haben sich Abstandshalter (61) besonders günstig bewährt, wobei die Abstandshalter (61) gegenüber dem Behälterradius zweckmässigerweise einen Winkel bilden. Je nach Aufgabenstellung braucht der Hohlraum (22) erst am Einsatzort mit Wasser, geeigneten Lösungen bzw. Schüttgut oder anderen strahlenabsorbierenden Materialien befüllt werden. Zusätzliche Ein- (62) und Auslassvorrichtungen (63) haben sich zum Befüllen und späteren Entleeren des Hohlraumes (22) als besonders günstig erwiesen.It is particularly advantageous if the containers (5, 6) and / or the shielding container (47) are double-walled with a fillable cavity lying between the walls. Between the double wall (20, 21) there is a cavity (22) which can be filled with suitable radiation protection material. The double wall (20, 21) is attached to a solid floor (60), but the floor can also be designed as a double wall in special cases. Spacers (61) have proven particularly advantageous for stabilizing and maintaining the geometry of the fillable cavity (22), the spacers (61) expediently forming an angle with respect to the container radius. Depending on the task, the cavity (22) only needs to be filled with water, suitable solutions or bulk material or other radiation-absorbing materials at the place of use. Additional inlet (62) and outlet devices (63) have proven to be particularly favorable for filling and later emptying the cavity (22).

Es ist auch besonders vorteilhaft, den befüllbaren Hohlraum (22) durch Querwände (64) in mehrere Kammern (23) zu unterteilen. Dadurch wird in speziellen Fällen ein unterschiedliches Befüllen mit Abschirmmaterial ermöglicht.It is also particularly advantageous to divide the fillable cavity (22) into several chambers (23) by means of transverse walls (64). In special cases, this enables different filling with shielding material.

Insbesondere ist die Unterteilung des Hohlraumes (22) durch konzentrische Wände (24) in mehrere konzentrische Kammern (23) vorteilhaft.The subdivision of the cavity (22) by concentric walls (24) into a plurality of concentric chambers (23) is particularly advantageous.

Der Behälter (5, 6, 47) kann gegebenenfalls durch Befüllen des Hohlraumes mit Beton o.ä. in eine sogenannte «verlorene Betonabschirmung" umgewidmet werden. Als besonders günstig hat sich dabei die Einlage eines Bleches aus diffusionshemmendem Material, beispielsweise Aluminiumblech gegen Tritiumpermeation, erwiesen. Beim Befüllen des Hohlraumes mit Beton o.ä. dienen die Abstandshalter (61) zusätzlich als Bewehrung.The container (5, 6, 47) can optionally be filled by filling the cavity with concrete or the like. be redirected in a so-called "lost concrete shielding." As a particularly favorable the insert has thereby a sheet of diffusionshemmendem material, for example aluminum sheet against tritium, proved. When filling the cavity with concrete or the like, the spacers (61) serve additionally as reinforcement .

Das Transportfahrzeug (44) hat sich im Befüllungsstadium der Endlagerbehälter (8) als besonders günstiges konstruktives Element der erfindungsgemässen Vorrichtung herausgestellt. Auf einem Untersatz (45) des Transportfahrzeuges (44), an dem eine Zentriervorrichtung (73) befestigt ist, steht ein Abschirmbehälter (47), der den Endlagerbehälter (8) enthält. Am Untersatz (45) sind rohrförmige Elemente (74) montiert, die innen als Hydraulikzylinder ausgebildet sind. In die rohrförmigen Elemente (74) sind Hydraulikkolben (75) eingepasst, an deren Unterseite sich ein Kugelelement (46), allseitig beweglich und geeignet gelagert, befindet. Mittels Pumpe und Zuführung wird durch eine Öffnung (76) das Hydraulikmedium in einen Zylinderraum (77) gefördert. Dabei wird der Untersatz (45) mit der Beladung angehoben, so dass die Kugelelemente (46) auf dem Boden (78) allseitig verfahrbar werden und der Untersatz (45) mit der Beladung schnell sowie exakt in die Befüllposition gebracht werden kann. In der Befüllposition wird der Untersatz (45) wieder abgesenkt und steht nunmehr fest auf dem Boden (78). Auf Anlagen, wie Förderbänder, Rollengänge u.ä., kann also verzichtet werden. Damit entfallen bei mobilen Abfallkonditionierungsanlagen auch erhebliches Transportgewicht sowie generell zumindest teilweiser Dekontaminationsaufwand. Es ist zweckmässig, den Hydraulikantrieb über eine gemeinsame Ringleitung mit den Kugelelementen (46) zu verbinden.The transport vehicle (44) has turned out to be a particularly favorable structural element of the device according to the invention in the filling stage of the final storage containers (8). On a base (45) of the transport vehicle (44), to which a centering device (73) is attached, there is a shielding container (47) which contains the final storage container (8). Tubular elements (74) are mounted on the base (45) and are designed as hydraulic cylinders on the inside. Hydraulic pistons (75) are fitted into the tubular elements (74), on the underside of which there is a spherical element (46) which is movably and suitably supported on all sides. The hydraulic medium is conveyed through an opening (76) into a cylinder space (77) by means of a pump and feed. The base (45) with the load is raised so that the ball elements (46) can be moved on all sides on the floor (78) and the base (45) with the load can be brought quickly and precisely into the filling position. In the filling position, the base (45) is lowered again and is now firmly on the floor (78). Systems such as conveyor belts, roller conveyors and the like can therefore be dispensed with. This means that mobile waste conditioning systems also dispense with considerable transport weight and generally at least partial decontamination effort. It is advisable to connect the hydraulic drive to the ball elements (46) via a common ring line.

Das Versenken der Kugelelemente (46) kann jedoch auch auf mechanische oder elektrische Weise erfolgen, obwohl sich die hydraulische Verstellung als besonders günstig herausgestellt hat.However, the ball elements (46) can also be countersunk in a mechanical or electrical manner, although the hydraulic adjustment has proven to be particularly favorable.

Besonders vorteilhaft sind auch die ringförmige Ausbildung des Untersatzes (45) sowie die Verwendung von drei versenkbaren Kugelelementen (46) auf der Bodenfläche (79) des Untersatzes (45).The annular design of the base (45) and the use of three retractable spherical elements (46) on the base surface (79) of the base (45) are also particularly advantageous.

Nach dem Befüllen der Endlagerbehälter (8) setzt die Deckelaufsetzvorrichtung (51) mittels einer Greifeinrichtung (56) den Enddeckel (80) auf den Endlagerbehälter (8). Die Zentrierung erfolgt mit geeigneten Einrichtungen fernbedient, ebenso das Verschliessen. Die Greifeinrichtung (56) arbeitet vorzugsweise mittels Sauger oder auf magnetische Weise. Die Deckelaufsetzvorrichtung (51) wird durch Antriebe positioniert. Da die Befüllstationen (57, 58) untereinander und gegen die Umgebung den Strahlenschutzerfordernissen entsprechend durch teilweise variable Abschirmwände (81) weitgehend abgeschirmt werden können, kann die Positionierung fallweise auch manuell erfolgen.After the final storage container (8) has been filled, the cover placement device (51) uses a gripping device (56) to place the end cover (80) on the final storage container (8). The centering is carried out remotely with suitable devices, as is the locking. The gripping device (56) preferably works by means of a suction device or in a magnetic manner. The cover placement device (51) is positioned by drives. Since the filling stations (57, 58) can be largely shielded from one another and from the environment in accordance with the radiation protection requirements by partially variable shielding walls (81), the positioning can also be carried out manually in some cases.

Claims (12)

1. A mobile apparatus for conditioning biologically harmful, more particularly radioactive waste consisting of a working room having containers, surrounded by variable shields, for accommodating and metering the waste, which working area has a sloping base running into a sump, conveying and control devices for the waste and the additives, filling stations for filling the ultimate storage containers and programmable controls, characterised in that the ultimate storage container (8) which is provided with a built-in agitator is coupled to the agitator drive mechanism of the unit by a sliding hoist (9) which supports a drive mechanism (10), a coupler (11) for the agitator, a waste supply pipe (12), an exhaust air pipe (13), a positioning device (14) and retention pins (15), a flat iron sheet (31) having several driving bolts (32), and a central pin (33) being used as the coupler (11) for the agitator, and the openings of the waste supply pipe (12) and the exhaust air pipe (13) are opened and closed by swivelling cups (25), which are connected in a swivelling manner to the sliding hoist (9) by springs (26) and curved grooves (27).
2. An apparatus according to claim 1, characterised in that the containers (5, 6) for accommodating and metering the waste are arranged such that one container (5), when suitably filled, acts as a shield for the other container (6).
3. An apparatus according to claims 1 and 2, characterised in that the containers (5, 6) are double-walled and have a fillable cavity (22) between the walls (20, 21).
4. An apparatus according to claims 1 to 3, characterised in that the fillable cavity (22) is divided into several chambers (23).
5. An apparatus according to claims 1 to 4, characterised in that the waste supply pipe (12) and the exhaust air pipe (13) are provided with gaskets (28) which are pressed onto an intermediate cover (30) by springs (29).
6. An apparatus according to claims 1 to 5, characterised in that the swivelling cups (25) are pneumatically pressed onto the gaskets (28) to seal the waste supply pipe (12) and the exhaust air pipe (13).
7. An apparatus according to claims 1 to 6, characterised in that the retaining pins (15) are positioned in a moveable manner on the sliding hoist (9).
8. An apparatus according to claims 1 to 7, characterised in that the pipe (34) of the waste supply pipe (12) additionally contains a ball valve (35) having a shaft (36), which shaft is passed via a tight passage (37) out of the pipe (34) and is axially moveable via a drive mechanism (38).
9. An apparatus according to claims 1 to 8, characterised in that the ultimate storage container (8) stands on a transport vehicle (44) during filling, the base (45) of which surrounds several recessed spherical elements (46).
10. An apparatus according to claims 1 to 9, characterised in that it contains an apparatus (51) for placing the cover on the ultimate storage container, having a gripping unit (56).
11. An apparatus according to claims 1 to 10, characterised in that the operating programme is controlled via a control console (52) which is spatially separated from the working area (2) and is connected thereto via flexible cables (53).
12. An apparatus according to claims 1 to 11, characterised in that the drive mechanism (10) for the built-in agitator (54) of the ultimate storage container (8) is connected to a force-measuring device (55).
EP81101006A 1980-03-08 1981-02-13 Process for conditioning biologically dangerous wastes Expired EP0035662B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3009005A DE3009005B1 (en) 1980-03-08 1980-03-08 Device for conditioning bio-harmful waste
DE3009005 1980-03-08

Publications (3)

Publication Number Publication Date
EP0035662A2 EP0035662A2 (en) 1981-09-16
EP0035662A3 EP0035662A3 (en) 1981-10-14
EP0035662B1 true EP0035662B1 (en) 1984-12-27

Family

ID=6096661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101006A Expired EP0035662B1 (en) 1980-03-08 1981-02-13 Process for conditioning biologically dangerous wastes

Country Status (5)

Country Link
US (1) US4439403A (en)
EP (1) EP0035662B1 (en)
DE (1) DE3009005B1 (en)
ES (1) ES500049A0 (en)
FI (1) FI73096C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245443C2 (en) * 1982-12-08 1986-05-15 Kraftwerk Union AG, 4330 Mülheim Device and process for conditioning radioactive waste suitable for disposal
DE4023163C2 (en) * 1990-07-20 1998-07-09 Siemens Ag Drying station and facility for the treatment of liquid radioactive waste
DE4023162C2 (en) * 1990-07-20 1996-08-29 Siemens Ag Filling adapter for in-line drying of liquid radioactive waste
US5461182A (en) * 1992-08-13 1995-10-24 Mobil Oil Corporation Hydrogen transfer and isoparaffin-olefin alkylation process
FR2783345B1 (en) * 1998-09-16 2000-11-10 Cogema PROCESS AND INSTALLATION FOR FILLING DRUMS CONTAINING HAZARDOUS WASTE
US8720498B2 (en) * 2007-07-16 2014-05-13 Energysolutions, Llc Remote fill head with automatic drip tray
BR112013030978B1 (en) * 2011-06-02 2021-10-19 Australian Nuclear Science And Technology Organisation MODULARIZED PROCESS FLOW INSTALLATION PLAN FOR STORING HAZARDOUS WASTE MATERIAL
JP5868185B2 (en) * 2012-01-06 2016-02-24 日揮株式会社 Radioactive waste storage container

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA767854A (en) * 1967-09-26 Aktiebolaget Separator Method for sterilizing the filling pipe of a filling machine
US2226970A (en) * 1939-04-01 1940-12-31 August J Ross Hydraulic jack for refrigerators and the like
US3178266A (en) * 1960-10-07 1965-04-13 Warner Lambert Pharmaceutical Materials handling apparatus
US3365092A (en) * 1965-12-06 1968-01-23 Anna M. Blessing Insulated food container
DE2141315C3 (en) * 1971-08-18 1975-05-15 Hoechst Ag, 6000 Frankfurt Device for filling barrels with liquid yellow phosphorus
DE2361732C2 (en) * 1973-12-12 1982-09-09 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Screw shaft extruder for fixing radioactive and / or toxic waste materials
US4196169A (en) * 1974-06-27 1980-04-01 Nuclear Engineering Company, Inc. System for disposing of radioactive waste
DE2629384A1 (en) * 1976-06-30 1978-01-12 Nuclear Engineering Co Liquid radioactive waste solidified for disposal - by mixing with water-absorbing binding agent and hardener
DE2637858A1 (en) * 1976-08-23 1978-03-02 Kernforschung Gmbh Ges Fuer METHOD FOR CONCRETE RADIOACTIVE WASTE
US4234447A (en) * 1978-07-17 1980-11-18 The Dow Chemical Company Mixing method and container therefor
US4261501A (en) * 1979-10-31 1981-04-14 Hallmark Cards Incorporated Laminated insulated hot drink cup

Also Published As

Publication number Publication date
FI73096B (en) 1987-04-30
FI73096C (en) 1987-08-10
US4439403A (en) 1984-03-27
DE3009005B1 (en) 1981-08-20
FI810527L (en) 1981-09-09
ES8303926A1 (en) 1983-02-16
EP0035662A2 (en) 1981-09-16
EP0035662A3 (en) 1981-10-14
ES500049A0 (en) 1983-02-16

Similar Documents

Publication Publication Date Title
EP0028347B1 (en) Transportable device for the receipt of substances to be shielded from the surroundings
DE3542536A1 (en) DELIVERY DEVICE
EP0035662B1 (en) Process for conditioning biologically dangerous wastes
EP0081074A2 (en) Device for compacting biologically noxious wastes
DE1589851A1 (en) Device for operating the core elements of a reactor core and method for operating this device
DE2923987A1 (en) SYSTEM FOR HANDLING AND COVERING CORE REACTOR FUEL AND REFLECTOR ELEMENTS
DE2637859C2 (en) Device for setting radioactive waste in concrete in waste drums
DE69602413T2 (en) Packaging and storage containers, in particular for remotely treated harmful waste materials; Process for filling and carrying out the process for packaging and storing compressed nuclear waste
DE2746391A1 (en) LOADING / UNLOADING DEVICE FOR FUEL ELEMENT BUNDLES FOR NUCLEAR REACTORS
DE3248592C2 (en)
DE3009005B2 (en)
EP0555272B1 (en) Shielding cover
DE1095411B (en) Loading and unloading device for a nuclear reactor
EP0179168B1 (en) Auxiliary repair device
EP0031879B1 (en) Device for incorporating radioactive waste in concrete in waste containers
DE2409258A1 (en) Petrol road-tanker filler arm - sealing plate in filling head, wiper seal round pipe below guideway
DE1289924B (en) Atomic nuclear reactor with pressure pipes
WO1992013043A1 (en) Coke feed device with housing for a coke dry cooling installation
DE3248595C2 (en)
DE3248594C2 (en)
DE3322858A1 (en) DEVICE FOR TAKING A SAMPLE OF DANGEROUS MATERIAL
DE648437C (en) Device for the gentle filling of conveyed material, especially in conveying vessels for mining conveyor systems
DE2637858A1 (en) METHOD FOR CONCRETE RADIOACTIVE WASTE
DE19853599A1 (en) Emptying device for bulk containers
DE2249563A1 (en) Radio-active material transporter system - sealed against alpha particle leakage and shielded against gamma radiation

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19810213

AK Designated contracting states

Designated state(s): BE CH GB SE

AK Designated contracting states

Designated state(s): BE CH GB SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH GB LI SE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: NUKEM GMBH

Ref country code: CH

Ref legal event code: PFA

Free format text: TNH TRANSPORTE UND DIENSTLEISTUNGEN ABWICKLUNGSGESELLSCHAFT MBH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

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

Ref country code: SE

Payment date: 19930113

Year of fee payment: 13

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

Ref country code: BE

Payment date: 19930120

Year of fee payment: 13

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

Ref country code: GB

Payment date: 19930205

Year of fee payment: 13

Ref country code: CH

Payment date: 19930205

Year of fee payment: 13

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

Ref country code: GB

Effective date: 19940213

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

Ref country code: SE

Effective date: 19940214

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

Ref country code: LI

Effective date: 19940228

Ref country code: CH

Effective date: 19940228

Ref country code: BE

Effective date: 19940228

BERE Be: lapsed

Owner name: NUKEM G.M.B.H.

Effective date: 19940228

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940213

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 81101006.5

Effective date: 19940910