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
  • G21F9/30—Processing
  • G21F9/301—Processing by fixation in stable solid media
  • G21F9/302—Processing by fixation in stable solid media in an inorganic matrix
  • G21F9/304—Cement or cement-like matrix
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
  • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
  • B28C5/0806—Details; Accessories
  • B28C5/0812—Drum mixer cover, e.g. lid
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
  • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
  • B28C5/0806—Details; Accessories
  • B28C5/0818—Charging or discharging gates or chutes; Sealing means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
  • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
  • B28C5/0862—Adaptations of mixing containers therefor, e.g. use of material, coatings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
  • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
  • B28C5/0875—Mixing in separate stages involving different containers for each stage
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
  • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
  • B28C5/10—Mixing in containers not actuated to effect the mixing
  • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
  • B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
  • B28C5/166—Pan-type mixers
  • B28C5/168—Pan-type mixers with stirrers having planetary motion
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
  • B28C5/48—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected by vibrations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
  • B28C7/04—Supplying or proportioning the ingredients
  • B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
  • B28C7/04—Supplying or proportioning the ingredients
  • B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
  • B28C7/10—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of rotary members, e.g. inclinable screws
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
  • B28C7/04—Supplying or proportioning the ingredients
  • B28C7/12—Supplying or proportioning liquid ingredients
• • 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 device for the inerting of radioactive waste.
• Radioactive waste management contributes to the safety of human health and the environment.
• One possibility is to package the radioactive waste in the form of packages to ensure the confinement of the radioactivity, by guaranteeing the mechanical and chemical resistance of the package useful for the safety of the storage.
• EP 2 624 257 A2 discloses a method of treating radioactive waste comprising the following steps:
• a device for the inerting of radioactive waste comprising:
• a mixer comprising a radioactive waste inlet
• a packaging unit suitable for housing a container
• the handling screw comprising:
• a transfer rotor in particular a screw without a core, extending into the interior volume
• a motor capable of rotating the transfer rotor.
• the device has one or more of the following characteristics, taken separately or in any combination (s) technically possible (s):
• the transfer rotor of the handling screw comprises a polyurethane, Teflon (registered trademark) or nylon coating,
• the device further comprises a unit for measuring the mass of material accommodated in the interior volume delimited by the trough,
• the mixer comprises an inlet connected to a water inlet and at least one inlet connected to an adjuvant inlet, the inlet of water and the inlet of adjuvant comprising a metering system of a quantity of water and adjuvant,
• the transfer member comprises:
• a casting channel the pouring channel having two ends, a first end of the pouring channel being connected to the mixer and the second end of the pouring channel being connected to a container accommodated by the conditioning unit,
• the casting channel furthermore comprises:
• a neck the neck being located at the first end, the neck comprising a main axis and the neck being able to rotate about the main axis of the neck, and
• a cap located at the second end and the cap comprising a valve having at least one open position and one closed position
• the packaging unit includes a parade for a parcel, the parcel parade comprising:
• a chassis that is suitable for supporting a package, the chassis comprising rollers on which the package is intended to rest, and
• a rotation group capable of rotating the package supported by the chassis capable of rotating the package supported by the chassis
• the conditioning unit comprises vibrating needles, at least a part of the kneader and / or the transfer member has a coating composed of at least 95% of natural rubber, and
• the mixer comprises:
• a tank having an interior surface
• FIG. 1 an exploded perspective view of an example of a mixer of a device for the inerting of radioactive waste
• FIG. 2 an exploded perspective view of an exemplary handling screw
• FIG. 3 is an overall view of an exemplary radioactive waste feed member of the device of FIG. 1,
• FIG. 4 an exploded perspective view of an example of a conditioning unit of the device of FIG. 1, and
• FIG. 5 is an exploded perspective view of the conditioning unit of FIG. 4 with the exception of the vibrating system and the rotation group,
• FIG. 6 an exploded perspective view of an exemplary casting channel of the device of FIG. 1,
• FIG. 7 a sectional view of the pouring channel of FIG. 6, and
• FIGS. 1 to 8 show parts of the device 10.
• the device is configured to package a package mix.
• the mixture includes radioactive waste and the package has dimensions for storage.
• Nuclear waste is, for example, primary circuit filters, contaminated gowns and gloves, ashes and bottom ash from smelting or incineration processes.
• the device 10 comprises a kneader 12, a waste feed member 14, a packaging unit 16, a transfer member 18 and a water treatment unit 20.
• the kneader 12 shown in Figure 1 is able to knead a set of substances to achieve a mixture.
• the mixer 12 comprises a tank 26, two half-covers 28, 30, at least one mixing member 32, a cleaning member 34 and an outlet chute 36.
• the tank 26 defines an interior volume 40.
• the tank 26 is suitable for storing substances in the interior volume 40.
• the tank 26 comprises, for example, a side wall 42 and a bottom 48.
• the side wall 42 has a cylindrical shape with a circular base.
• the circular base has a radius of between 0.5 m and 1.1 m.
• understood it is understood on the one hand that the radius is greater than or equal to 50 cm and on the other hand that the radius is less than or equal to 5 m.
• the side wall 42 has an upper end 44 and a lower end 46.
• the bottom 48 is connected to the side wall 42 at the lower end 46.
• the side wall 42 comprises a shield.
• the shield is made of abrasion resistant steel and has a hardness between 370 and 430 HB. Hardness is measured relative to Brinell hardness. Brinell hardness includes a measurement method. The method consists in applying on the surface of the shielding a ball of hard material of a certain diameter D with a given force F measured in Newton for a time t. After removal, measure the diameter of the impression left d. Generally, the ball is made of hard steel and has a diameter D equal to 10 mm. The applied force F is equal to 29,430 N. The duration t is 15 seconds.
• the shielding has a thickness of between 10 mm and 14 mm, and more particularly equal to 12 mm to 5%.
• the side wall 42 is covered on the side of the interior volume 40 of the tank with a coating composed of at least 95% natural rubber.
• Natural rubber is a linear polymer of cis-1,4-polyisoprene denomination of formula (C 5 H 8 ) n .
• the bottom 48 has a circular shape having the same radius as the cylinder formed by the side wall 42.
• the bottom 48 comprises a shield.
• the shield is made of abrasion resistant steel and has a hardness between 370 and 430 HB.
• the shielding has a thickness of between 13 mm and 17 mm, and more particularly equal to 15 mm to 5%.
• the bottom 48 has at least three openings 50 each provided for receiving a sensor monitoring the hygrometry of the substance in the interior volume 40 of the tank 26.
• the bottom 48 has an edge defining an orifice 52.
• the orifice 52 is able to let a substance leave the tank 26.
• the lower end 46 of the side wall 42 forms part of the edge.
• the edge has the shape of a meniscus formed by two circular arcs.
• the first arc is a part of the lower end 46 of the side wall 42.
• the second arc is defined in the bottom 48.
• the two half-covers 28, 30 are configured to close at least partially the tank 26 at its upper end 44.
• the two half-covers 28, 30 are also able to accommodate the arrival of various substances in the interior volume 40 of the tank 26.
• the two half-covers 28, 30 are circular segments of the same disk, each formed of a rope and an arc.
• the disc has the same contour as the circular base of the side wall 42.
• the circular arc of the circular segments has a length between 0.2 times the perimeter of the circular base and 0.5 times the perimeter of the circular base.
• the circular arc of the circular segments has a length of between 238 mm and 1300 mm.
• the arcs of the two half-covers 28, 30 are devoid of common points.
• the cords of the two half-covers 28, 30 are parallel.
• the two half-covers 28, 30 define an orifice 61 between them.
• the two half-covers 28, 30 define at least four openings: a cement inlet 54, a waste inlet 56, a sand inlet 58 and at least one liquid inlet 60.
• the four openings 54, 56, 58, 60 are circular.
• the sand inlet 58 is connected to a pipe provided for conveying sand to the mixer 12.
• the liquid inlet 60 is an adjuvant and / or water inlet.
• the liquid inlet 60 is connected to a water distribution system.
• the liquid inlet 60 is connected to a storage tank of an adjuvant.
• the liquid inlet 60 is connected to a mixing tank, the mixing tank being connected to a water distribution system and at least one storage tank of an adjuvant.
• the two half-covers 28, 30 are intended to rest in contact with the upper end 44 of the side wall 42.
• each half-cover 28, 30 and the tank 26 is made by rubber seals for sealing.
• the two half-covers 28,30 are connected and formed in one piece.
• the two half-covers 28, 30 and the tank 26 are made of the same material.
• the two half-covers 28, 30 are made of stainless steel.
• the mixing member 32 is able to mix a substance in the internal volume 40 of the tank 26.
• the mixing member 32 comprises a support 62, a motor 64 and a worm gear 66.
• the support 62 is configured to support the worm gear 66 and the motor 64.
• the support 62 is also provided to close the vessel 26 at its upper end 44.
• the support 62 has the shape of a rectangle.
• the rectangle has a length and a width.
• the length is greater than the size of the diameter of the circular base of the side wall 42.
• the width is greater than the distance between the two cords of the two half-covers 28, 30.
• the support 62 is intended to rest in contact with the upper end 44 of the tank 26.
• the support 62 is intended to rest in contact with the upper end 44 of the tank 26 and with the two half-covers 28, 30
• the length of the support 62 is placed parallel to the cords of the two half-covers 28, 30.
• the support 62 is arranged to cover the orifice 61 between the two half-covers 28, 30.
• the support 62 is made of painted alloy steel.
• the support 62 comprises a planetary reducer.
• the planetary gearbox is provided for rotating the worm gear 66.
• the planetary gear includes a planetary gear for transmitting a torque of an engine to the worm gear.
• the planetary gearbox is located outside the interior volume 40 of the tank 26.
• the planetary gearbox is fixed to the support 62.
• the engine 64 is an electric motor.
• the motor 64 is provided to start the worm gear 66, more particularly when the internal volume of the kneader 12 comprises a substance.
• the worm gear 66 is configured to knead a substance into the interior volume 40 of the vessel 26 as the train 66 is rotated.
• the worm gear 66 is a member comprising a central part, several arms elongated between two ends and a lateral scraper 69. At one end, the arms are provided with scrapers 68. At the second end, the arms are connected to the central portion.
• the side scraper 69 is in contact with the side wall 42 of the tank 26.
• the side scraper 69 is able to scrape the side wall 42 of the tank 26 when the worm gear 66 is rotating.
• the worm gear 66 is disposed in the interior volume 40 of the tank 26.
• the central portion is mounted on the support 62 in connection with the planetary gear.
• the scrapers 68 are in contact with the bottom 48.
• the arms of the worm gear and the lateral scraper 69 are elongated between the support 62 and the bottom 48 of the tank 26.
• the worm gear 66 is adapted to be rotated about the main axis of the cylindrical vertical wall 42 by the planetary gear.
• the worm gear 66 is made of stainless steel.
• the arms of the worm gear are covered with a coating of at least 95% natural rubber.
• the cleaning member 34 is configured to spray the interior volume 40 of the tank 26 with a liquid.
• the cleaning member 34 is able to spray the side wall 42 of the tank 26, the bottom 48 and the two half-covers 28, 30.
• the cleaning member 34 comprises a manifold and a set of nozzles.
• the manifold is configured to convey water and sprinkle water the side wall 42 of the tank 26, the bottom 48 and the two half-covers 28, 30.
• a first water spraying is performed, by the collector, at low pressure, substantially equal to atmospheric pressure, and with a high flow rate.
• the flow rate is between 15 and 20 m 3 / h.
• the manifold comprises one or more pipes connecting the interior volume 40 of the tank and a water distribution system.
• the nozzles are able to sprinkle water on the side wall 42 of the tank 26, the bottom 48 and the two half-covers 28, 30.
• a second water spraying is carried out, by the nozzles, at high pressure, between 125 and 175 bars, and substantially equal to 150 bars.
• the nozzles are mounted on the worm gear 32. As the worm gear 32 rotates, the nozzles are also rotated.
• the nozzles are oriented towards the side wall 42 of the tank 26, the bottom 42 and the hood 28.
• the nozzles are movably mounted in translation.
• the nozzles are able to scan a surface.
• the nozzles are on the one hand interconnected and on the other hand connected to a system for dispensing water under pressure by one or more pipes.
• the outlet chute 36 is adapted to prevent or to let a substance leave the tank 26.
• the outlet chute 36 defines an interior volume.
• the outlet chute 36 is hooked to the tank 26 at the orifice 52.
• the outlet chute 36 comprises an upper surface 70 and a funnel 72.
• the upper surface 70 delimits an upper volume.
• the upper surface 70 has a cylindrical shape having a crescent base.
• the upper surface 70 includes two vertical surfaces and a lid, but no bottom.
• the two vertical surfaces comprise a lower end.
• the lower end of the two vertical surfaces is substantially at the same height as the lower end 46 of the tank 26.
• the crescent has two sides.
• the sides each have the shape of an arc of circle: an inner circle and an outer circle.
• the outer arc is the arc of the circle with the highest length.
• the side formed by the inner circular arc extends against a portion of the vertical wall 42.
• the lower end of the side formed by the internal arc is merged with the first arc of the orifice 52.
• the lower end of the side formed by the outer arc forms a circle with the second arc of the orifice 52.
• the funnel 72 has the shape of a truncated cone.
• the cone extends around a vertical main axis.
• the funnel 72 has an upper end and a lower end.
• the funnel 72 is open at both ends.
• the surface of the cutting circle of the cone decreases from the upper end to the lower end.
• the funnel 72 is connected at its upper end to the upper volume 70 and to the tank 26 at the orifice 52.
• the shape of the funnel 72 at its upper end is the circle formed by the outer circle arc of the crescent and the second arc of the orifice 52.
• the funnel 72 defines at its lower end an outlet of the outlet chute 36.
• the outlet chute 36 has at least two positions: an open position and a closed position.
• the outlet chute 36 When the outlet chute 36 is in the closed position, the outlet chute 36 prevents the exit of any substance contained in the tank 26.
• a door closes, for example, the opening 52 of the bottom 48 when the outlet chute 36 is in the closed position.
• the door has a shape complementary to the orifice 52.
• the outlet chute 36 When the outlet chute 36 is in the open position, the outlet chute 36 is an outlet of the tank 26.
• the door at least partially releases the orifice 52 of the bottom 48, when the outlet chute 36 is in the open position.
• the outlet chute 36 and the tank 26 are made of the same material.
• the outlet chute 36 is made of stainless steel.
• the waste feed member 14 is adapted to convey radioactive waste to the mixer 12.
• the waste feed member 14 and the mixer 12 are configured such that the radioactive waste is poured into the internal volume 40 of the tank 26.
• the waste delivery member 14 is able to measure the quantity of radioactive waste poured into the interior volume 40 of the tank 26.
• the waste supply member 14 is able to stop pouring radioactive waste when a quantity predetermined is reached.
• the waste feed member 14 comprises two ends. A first end is connected to a radioactive waste storage area. A second end is connected to the waste inlet 56 defined in one of the half-covers 28.
• the waste feed member 14 comprises a sweeping screw 76 and one or more handling screws 78, 79 placed end to end.
• the tamper screw 76 is configured to crush and route the radioactive waste.
• the tamper screw 76 comprises a body, a shaker tree, a screw without a core and a motor.
• the body of the rotary screw 76 is elongate between two ends along an axis A1.
• the body of the tamper screw 76 defines an interior volume.
• the body of the tamper screw includes a material inlet on the top and a material outlet at one end of the body of the tamper screw 76.
• the tree is elongated along the axis A1.
• the shaker tree has two ends.
• the rotary shaft is mounted on the body of the rotary screw 76, such that the rotary shaft is free to rotate about the axis A1.
• the shaker tree is located under the material inlet of the body of the tamper screw.
• the tree has a central core and pale mounted on the central core.
• the tree is able to crush the material.
• the screw without core is elongated along the axis A1 in the body of the rotary screw 76.
• the soulless screw has two ends. The first end of the coreless screw is at the material outlet of the tamper screw body.
• the screw without core is located under the material inlet of the body of the tamper screw and the shaker shaft.
• the screw without a soul is able to convey the material of the material inlet to the material outlet.
• the motor is able to drive the rotator shaft and the screw without a core.
• the motor is able to rotate the soulless screw by a sleeve.
• One of the ends of the tree and the second end of the screw without soul are connected by a chain.
• the rotary shaft is rotated by the screw without a core, the screw without a core being rotated by the motor.
• the tamper screw 76 is configured so that the material entering through the material inlet falls on the shaker tree. The material in contact with the shaker tree then comes into contact with the screw without a core. The screw without a soul guides the material towards the exit of matter.
• the handling screw 78, 79, shown in FIG. 3, is configured to convey the radioactive waste to the tank 26 of the mixer 12.
• the handling screw 78, 79 comprises a trough 100, a cover 102, at least one support 104, a transfer rotor 106 and a motor 108.
• the handling screw 78 is elongated along an axis A2.
• the trough 100 defines an elongated interior volume along the axis A2.
• the interior volume of the trough 100 is able to contain the material to be conveyed.
• the trough 100 comprises two ends 1 10, 1 12 along the axis A2.
• the trough 100 comprises at a first end 1 10 a material inlet 1 14 and at a second end 1 12 a material outlet 1 16.
• the material inlet 1 14 is connected hermetically to the material outlet of the tamper screw 76.
• the material outlet 1 16 is hermetically connected to the waste inlet 56 of the mixer 12.
• the trough 100 has for example substantially the shape of an elongated block along the axis A2.
• the trough 100 comprises substantially vertical walls and a bottom, but no cover.
• the trough 100 has an upper edge.
• the entry of material 1 14 is an inlet chute.
• the inlet chute is located in contact with the upper edge of the trough 100.
• the material outlet 1 16 is an outlet chute defined in the bottom of the trough 100.
• the trough 100 is made of stainless steel.
• the lid 102 is configured to seal the trough 100.
• the lid 102 has the shape of a stackable rectangle with the upper edge of the trough 100, except for the material inlet 1 14.
• the cover 102 is configured to leave a passage for the material inlet 1 14.
• the support 104 is provided to maintain the trough 100.
• the support 104 is able to measure a mass representative of the material in the handling screw 78, 79.
• the support 104 is a hanger connecting the trough 100 to a roof or a frame.
• the support 104 is equipped with a load cell.
• the scale is able to measure the mass of the material in the interior volume of the trough 100.
• the transfer rotor 106 is able to rotate in the interior volume of the trough 100 and to drive the material of the material inlet 1 14 to the material outlet 1 16.
• the transfer rotor 106 is elongate along the axis A2.
• the transfer rotor 106 extends from one end 1 10 of the trough 100 to the other end 1 12 of the trough 100.
• the transfer rotor 106 is rotatably mounted at the ends 1 10, 1 12 of the trough 100.
• the transfer rotor 106 extends into the interior volume of the trough 100.
• the transfer rotor 106 comprises a polyurethane, Teflon (registered trademark) or nylon coating.
• the transfer rotor 106 is a screw without a core.
• the screw without core is formed of three similar parts connected by bearings 1 18.
• the bearing 1 18 is a shell provided with a central through orifice.
• the central hole is coated with a sliding ring.
• the slip ring is made of nylon.
• a first portion of the coreless screw 106 is mounted on the bearing 1 18 at one end of the central orifice.
• a second portion of the coreless screw 106 is mounted on the bearing 1 18 at another end of the central orifice.
• the two parts of the coreless screw 106 thus mounted are integral in rotation about the axis A2.
• the motor 108 is able to rotate the transfer rotor 106.
• the motor 108 is connected to the webless screw at one end 1 of the trough by a coupling sleeve 120.
• the coupling sleeve 120 is configured to transmit the torque of the motor 108 to the transfer rotor 106 .
• the motor 108 is configured to rotate the transfer rotor 106 about the axis A2 in both directions of rotation. In a first direction of rotation, the screw without core 106 is able to convey the material of the material inlet 1 14 to the material outlet 1 16. In a second direction of rotation, the transfer rotor 106 is able to convey the material of the material outlet 1 16 to the material inlet 1 14.
• the motor 108 is configured to rotate the transfer rotor 106 about the axis A2 in the first direction of rotation only.
• the motor 108 has a power of between 2 and 2.5 kW.
• the material inlet 1 14 of the first handling screw 78 is connected to the material outlet of the rotary screw 76 and the material outlet 1 16 of the second handling screw 79 is connected to the waste inlet 56 of the mixer.
• the material inlet 1 14, each handling screw 79 different from the first handling screw 78, is mounted on the material outlet 1 16 of the previous handling screw 78.
• the material outlet 1 16, each screw handling 78 different from the last handling screw 79, is mounted on the material inlet 1 14 of the next handling screw 79.
• the conditioning unit 16 shown in FIGS. 4 and 5, comprises a parody for a package 122 and a vibrating system 123.
• the carousel for package 122 is able to support a container for the packaging of radioactive waste and to drive the container in rotation.
• the container is substantially a generator cylinder a vertical axis, closed at its lower end and open at its upper end.
• the container defines an interior volume.
• the container has a capacity of between 100 and 1000 liters.
• the package carousel 122 includes a frame 124 and a rotation group 126.
• the frame 124 is configured to support a container.
• the chassis 124 comprises a base 128, a first riser system 130 and a second riser system 132.
• the base 128 comprises a support 134, feet 136 and slide stations 138.
• the support 134 comprises a surface 140 and vertical supports 142.
• the support 134 is invariant by rotation of 120 ° around a center C.
• the surface 140 of the support 134 has a planar shape.
• the surface 140 of the support 134 is included in a circle of center C and first radius R and is not included in a circle of center C and second radius r.
• the difference R-r is less than 10 cm.
• the first radius R is between 0.5 m and 5 m.
• the second radius r is between 0.6 m and 5.1 m.
• the surface 140 of the support 134 is a center disk C.
• the vertical supports 142 comprise a lower part, an upper part and a vertical part.
• the lower part is mounted on the surface 140 of the support 134.
• the lower part is a block.
• the upper part has the shape of a bevel.
• the upper portion comprises two triangular vertical surfaces, a lower horizontal rectangular surface, a vertical rectangular surface and a diagonal rectangular surface.
• the vertical part connects the lower part and the upper part.
• the vertical part is substantially an elongated block along the vertical axis.
• the vertical supports 142 have the shape of a U.
• the cavity of the U is oriented in a horizontal plane and towards the center C.
• the vertical supports 142 are three in number. In the example described, the vertical supports 142 are located at the vertices of the surface 140 of the support 134.
• the feet 136 are configured to carry the support 134.
• the feet 136 hold the support 134 horizontal.
• the feet 136 are intended to rest on a horizontal ground.
• the feet 136 are identical.
• the feet 136 are placed on a circle centered on the center of the support.
• the feet 136 are located at a distance D from the center.
• the distance D is between 0.75 times the second radius r and the second radius r.
• the feet 136 are three in number and are placed at 120 ° on the circle of each other. In the example described, the feet 136 are in contact with the support 134 at the vertices of the support 134.
• Each foot 136 is equipped with a load cell.
• the load cells are able to measure the mass of material contained in a container in support on the parade for parcels 122.
• the slip stations 138 are adapted to facilitate the rotational movement about the vertical axis B passing through C of a package supported by the frame 124.
• the slip stations 138 are mounted on the support 134.
• the frame 124 comprises three sliding stations 138.
• slip stations 138 are equidistributed angularly. For example, slip stations 138 are equidistributed at 120 °.
• the slip stations 138 are located at 120 ° from each other around
• Slide stations 138 are invariant by 120 ° rotation around C.
• the slip stations 138 are located between the vertical supports 142 and the center C.
• the slip stations 138 each comprise support rollers 144, lateral rollers 146 and a sliding strip 148.
• each sliding station 138 comprises seven support rollers 144, two lateral rollers 146 and a sliding strip 148.
• the support rollers 144 are similar rollers.
• the support rollers 144 are hollow circular cylinders of a generator axis d.
• the support rollers 144 have a cylindrical through hole of generatrix the axis d.
• the support rollers 144 are made of stainless steel and have a polyurethane coating.
• the support rollers 144 are rotatably mounted on rods 146.
• One or more support rollers 144 are mounted on a rod 150.
• the rods 150 are introduced into the through orifice of the support rollers 144.
• the rods 150 are mounted on the support 134.
• the main axis d of the support roller 144 and rods is horizontal.
• the intersection between the generatrix d of the support roller 144 and the vertical axis B passing through the center C is a point.
• the support 134 comprises seven bins 152 per sliding station 138.
• the bins 152 are able to receive a support roller 144.
• the rods 150 are mounted on vertical walls of the bin 152.
• the lateral rollers 146 are similar to the support rollers 144.
• Each lateral roller 146 is movably mounted on a rod.
• the rod is introduced into the through hole of the lateral roller 146.
• the rod is rotatably mounted to one of the vertical supports 142 of the support 134.
• the rod extends along a main axis between the lower part and the upper part of the vertical support.
• the generatrix of the lateral roller 146 is vertical.
• the lateral rollers 146 are located equidistant from the center C.
• the sliding strip 148 is a rectangular plate fixed on the diagonal rectangular surface of the upper portion of the vertical supports 142.
• the sliding strip is made of nylon.
• the first riser system 130 and the second riser system 132 are configured so that the top end of a container is located at the same height of the floor as in the case of another container of difference capacity.
• the first riser system 130 includes a first riser 154, a guide system 156 and a clamping wheel 158.
• the first riser 154 has substantially the shape of a hollow cylinder.
• the cylinder has a circular base and is of generator the vertical axis B.
• the first riser 154 has a radius smaller than the distance r.
• the first riser 154 includes an upper horizontal surface 160 and a lower horizontal surface 162.
• the upper horizontal surface 160 and the surface horizontal lower 162 have a distance between 0.1 m and 0.2 m, and more particularly equal to 164 mm.
• the first riser 154 defines an orifice 164.
• the orifice 164 is cylindrical with a circular base. The orifice 164 passes through the first riser 154 between the upper horizontal surface 160 and the lower horizontal surface 162.
• the lower horizontal surface 162 of the first riser 154 rests on the support rollers 144 of the base 128.
• the first riser system 130 is removable relative to the base 128.
• the guide system 156 is configured to guide the first riser 154 in rotation around the axis B.
• the guiding system 156 extends into the orifice 164.
• the guiding system 156 comprises bearings 166 mounted on a pin 168 having the axis B as the main axis.
• the bearings 166 are configured so that the first riser 154 is capable of to rotate around the axis B.
• the guide system 156 comprises a locking screw 170 to maintain the bearings 166 and the pin 168 integral.
• the clamping wheel 158 comprises a flywheel 450, a clamping screw 452 and a support pad 454.
• the flywheel 450 and the clamping screw 452 are integral in rotation.
• the clamping screw 452 is rotatably mounted on the first riser 154 with a nut.
• the bearing pad 454 is mounted on the clamping screw 452 and is able to be displaced in translation by the clamping screw 452 between a clamping position and a free position.
• the support pad 454 is in contact with the second riser system 132, if the second riser system 132 is mounted, or otherwise with the container.
• the support pad 454 is not in contact with the second riser system 132 or the container.
• the clamping screw 452 rotates in the same direction and moves the support pad 454 from the clamping position to the free position.
• the flywheel 450 is intended to be immobilized by a pin.
• the second riser system 132 includes an inner shroud 172, an outer shroud 174, an adjusting crank 176 and at least one clamping wheel 178.
• the inner ferrule 172 includes a side wall 180.
• the side wall 180 has a cylindrical shape with a circular base and a generator axis B.
• the side wall 180 has an inner surface and an outer surface.
• the outer surface of the side wall 180 has a radius less than the radius of the first riser 154.
• the side wall 180 rests on the upper horizontal wall 160 of the first riser 154.
• the inner shell 172 includes a nylon ring 182.
• the ring 182 is mounted on the outer surface of the inner shell 172.
• the outer shell 174 includes a side wall 184, an upper horizontal wall 186 and a nylon ring 188.
• the side wall 184 is in the form of a circular base cylinder having the axis B as generatrix.
• the side wall 184 has an inner surface and an outer surface.
• the side wall 184 of the outer shell 174 has a diameter smaller than the diameter of the side wall 180 of the inner shell 172 by a distance of between 4 mm and 8 mm, and more particularly equal to 6 mm to 5%.
• the ring 188 is mounted on the inner surface of the outer shell 174.
• the outer surface of the inner shell 172 and the inner surface of the outer shell 174 are in contact at the rings 182, 188.
• the upper horizontal wall 186 rests on the side wall 184.
• the upper horizontal wall 186 is a disc having a diameter between the diameter of the side wall 184 and 1.1 times the diameter of the side wall 184.
• the inner ring 172 and outer 174 are able to slide relative to each other in translation along a vertical axis.
• the inner ferrule 172 being in contact with the first riser 154, the height of the outer ferrule 174 relative to the first riser 154 is variable.
• Adjustment crank 176 is provided to adjust the height of outer shell 174.
• the adjustment crank 176 comprises a screw / nut system for raising or lowering the outer shell 174 relative to the first riser 154.
• the clamping wheel 178 of the second riser system 132 is configured to clamp the container to the second riser system 132.
• the clamping wheel 178 of the second riser system 132 is similar to the clamping wheel 158 of the first riser system 130.
• the second riser system 132 is removable from the first riser 154.
• the rotation group 126 is able to rotate a container or the first raising system 130.
• the rotation unit 126 comprises a geared motor mounted on rails.
• the geared motor is able to rotate an object in contact with the geared motor.
• the geared motor is at a height of the ground substantially equal to that of the first raising system 154.
• the rails are parallel and are configured to move the gearmotor toward or away from the chassis 124.
• the vibrating system 123 comprises at least one vibrating needle 400, an external connection 402 and a support 403.
• the vibrating needle 400 is configured to generate vibrations.
• the vibrating needle 400 shown in FIG. 4, comprises a body 404, a counterweight, and a rotation system.
• the body 404 has substantially the shape of a closed rigid tube elongated along a main axis X.
• the body defines an interior volume.
• the vibrating needle 400 extends mainly along the main axis X of the body 404.
• the body 404 has two ends. At one end, the body 404 comprises a connection system 406.
• the connection system 406 allows the connection of the external connection 402 to the body of the vibrating needle 400.
• the body 404 is made of a material comprising stainless steel.
• the weight is located in the interior volume of the body.
• the weight is eccentric with respect to the main axis X of the body of the vibrating needle 400.
• the center of gravity of the weight is not located on the main axis X of the body of the vibrating needle 400.
• the weight is adapted to be rotated by the rotation system.
• the rotation of the flyweight takes place around the main axis X of the body of the vibrating needle 400.
• the rotation of the flyweight is implemented at a predetermined frequency.
• the rotation system is, for example, a rod connecting the weight to the connection system.
• the rod is adapted to be rotated about the X axis by a motor.
• the rotation system is a rotor of a motor along the X axis on which is mounted the flyweight or a compressed air system setting up a flow of air capable of driving the rotating weight around of the X axis.
• the external connection 402 is able to activate the system for rotating the vibrating needle 400.
• the outer connection 402 is located outside the inner volume of the body 404 of the vibrating needle 400.
• the external connection 402 is connected to the body 404 of the vibrating needle 400 at the connection system.
• connection 402 is a motor, an electric motor or a compressed air system.
• connection system 406 is then a driving device, an electrical outlet or an opening defined by the body 404.
• the support 403 is configured to hold and move the vibrating needle 400.
• the support 403 is able to move the vibrating needle (s) 400 between at least two positions: a rest position in which the vibrating needle 400 is not in position. right of the parcel ride, and a pervibration position in which the vibrating needle 400 is configured to be, at least partially, in the interior volume of a container received by the parade for parcel 122.
• the support 403 is controlled automatically or manually.
• the support 403 is, for example, made of stainless steel.
• the transfer member 18 is configured to transfer a substance from the kneader 12 to a container in contact with the conditioning unit 16.
• the transfer member 18 comprises a casting channel 200, a rotating neck 202, a cap 204, a lid 206 and a washing system 207.
• the casting channel 200 is configured for the flow of a substance in contact with the transfer member 18.
• the casting channel 200 comprises a main portion 208, an introduction zone 210 and a vibrator 21 1.
• the main portion 208 of the pouring channel extends between two ends.
• the main portion 208 has a slope.
• the central portion 208 has substantially the shape of a portion of a truncated hollow cylinder generatrix an X axis.
• the X axis forms an angle with any horizontal plane.
• the cylinder is truncated in a plane parallel to the X axis, the portion of the cylinder located above the plane being removed.
• the truncation plane forms a constant angle with a horizontal plane, the angle being equal to the angle a.
• the main portion 208 of the casting channel 200 is inclined at the angle a.
• the angle a is greater than 20 °.
• the intersection between the truncation plane and the cylinder forms upper edges 212 of the central portion 208.
• the two ends of the main portion 208 are an upper end 214 and a lower end 216.
• the upper end 214 is located at a height greater than that of the lower end 216.
• the central portion 208 has an angled cut.
• the dimension of the central portion 208 along the X axis is maximum at its upper edges 212.
• the inner face of the central portion 208 comprises at least one coating composed of at least 95% natural rubber.
• the introduction zone 210 is configured to close at one end the central portion 208 and is able to allow a substance to enter the casting channel 200.
• the introduction zone 210 is fixed to the upper end 214 of the central portion 208.
• the central portion 208 and the introduction zone 210 are made in one piece or are made in two separate parts and then attached together.
• the introduction zone 210 extends away from the central portion 208.
• the introduction zone 210 comprises an inner face and an outer face.
• the inner face and the outer face of the insertion zone 210 are delimited at two borders, one being in contact with the central part and the other being an upper edge 218.
• the introduction zone 210 has the shape of a quarter ball.
• the edge in contact with the central portion 208 has substantially the same shape as the upper end 214 of the central portion 208.
• the inner face is the face intended to be in contact with the inner face of the central portion 208 at the edge in contact with the central portion 208.
• the upper edge 218 of the introduction zone 210 and the upper edges 212 of the central portion 208 form an oblong portion.
• the oblong shape is contained in a plane inclined at the angle a with respect to any horizontal plane.
• the inner face of the central portion 208 comprises at least one coating composed of at least 95% natural rubber.
• the central portion 208 and the introduction zone 210 delimit an interior volume.
• the vibrator 21 1 is configured to vibrate the central portion 208 and the insertion zone 210.
• the vibrator 21 1 is, for example, in contact with the central portion 208.
• the rotating neck 202 is able to bring the material coming out of the outlet chute 36 of the mixer 12 into the pouring channel 200.
• the rotating neck 202 comprises an upper portion 220, a lower portion 222 and a transmission 224.
• the upper part 220 and the lower part 222 are in one piece or are made in two separate parts and then attached together.
• the upper part 220 is a hollow cylinder generatrix a vertical axis.
• the cylinder is circular.
• the rotating neck 202 has for main axis the generator of the upper part 220.
• the upper part 220 is connected at its upper end to the lower end of the funnel 72, forming the outlet of the outlet trough 36.
• the outlet of the outlet trough 36 and the upper end of the upper part 220 have the same shape and the same dimension.
• the lower part 222 is a truncated cone extending between the upper part 220 and the introduction zone 210 of the casting channel 200.
• the radius of the cone decreases when the cone is traversed from the upper part 220 to the introduction zone. 210.
• the cone is the same size as the upper portion 220.
• the lower portion 222 rests on the upper edges 218.
• the cone is truncated at the level of the upper portion 220. the insertion zone 210 in a plane parallel to the axis X and forming an angle with the horizontal.
• the transmission 224 is able to rotate the lower portion 222 and the upper portion 220 of the rotating neck 202.
• the transmission 224 includes a motor 226 and a chain 228.
• the motor 226 rotates a cylindrical pin 230, having a vertical axis as a guide.
• the chain 228 goes around the cylindrical pin 230 and the upper part 220 of the rotating neck 202.
• the chain 228 transmits the torque of the cylindrical pin 230 to the rotating neck 202.
• the rotating neck 202 is rotated around the generatrix of the upper part 220.
• the cap 204 is able to pour the substance out of the pouring channel.
• the cap 204 comprises a body 232, a first ring 234, a second ring 236 and a valve 238.
• the body 232 is comprised of a vertical wall 240 and a roof 242.
• the vertical wall 240 defines an interior volume of the cap 204.
• the vertical wall 240 is in the form of a cylinder.
• the cylinder has a circular base and a vertical generator.
• the vertical wall 240 has a thickness according to the radius of the cylinder.
• the vertical wall 240 includes a lower end and an upper end.
• the vertical wall 240 is connected to the casting channel 200 at the lower end 216 of the central portion 208.
• the vertical wall 240 defines an opening in the continuity of the casting channel 200.
• the lower end 216 of the central portion 208 is included in the vertical wall 240.
• the vertical wall 240 comprises two vertical slots 244 extending from the lower end of the vertical wall 240.
• the two slots are diametrically opposed on the vertical wall 240.
• the roof 242 is a circle of the same radius as the circular base of the vertical wall 240.
• the roof 242 is mounted on the upper end of the vertical wall 240.
• the vertical wall 240 is sealed at its upper end by the roof 242.
• the first ring 234 has a horizontal surface and a vertical surface.
• the horizontal surface is a circular ring.
• the outer radius is a radius greater than the radius of the circular base of the vertical wall 240.
• the inner radius is a radius less than the radius of the circular base of the vertical wall 240 a distance equal to the thickness of the vertical wall 240.
• the vertical surface defines an outlet channel of the cap 204.
• the vertical surface has a general shape of circular base cylinder.
• the circular base has the radius of the inner radius of the horizontal surface.
• the cylinder has for generatrix the vertical axis passing through the center of the circular ring.
• the vertical surface has a lower end and an upper end.
• the inner radius of the horizontal surface and the lower end of the cylinder of the vertical surface are in contact.
• the vertical surface comprises two orifices 246 traversing diametrically opposite.
• the vertical surface of the first ring 234 is inserted inside the vertical wall 240 of the body 232 of the cap 204.
• the inner surface of the vertical wall 240 of the body 232 is in contact with the outer surface of the vertical surface of the first ring 234.
• the vertical surface has at the lower end a complementary cutout of the cutout at the lower end 216 of the central body 208 of the pouring channel 200.
• the two orifices 246 passing through the vertical surface of the first ring 234 are aligned with the slots 244 of the vertical wall 240 of the body 232.
• the second ring 236 is a horizontal circular ring.
• the second ring 236 has an outer radius greater than the outer radius of the first ring 234.
• second ring 236 has an inner radius between the inner radius and the outer radius of the first ring 234.
• the first ring 234 and the second ring 236 have the same center.
• the second ring 236 is mounted with the first ring 234.
• the first ring 234 is located between the body 232 of the cap 204 and the second ring 236.
• the second ring 236 is intended to rest on the upper edge of a container.
• the valve 238 is configured to allow or prevent a substance from the tapping channel 200 to exit the interior volume of the cap 204.
• the valve 238 comprises a disk 248, a rod 250 and a motor 252.
• the disc 248 is a disc of center the center of the first ring 234 and radius the radius of the vertical surface of the first ring 234.
• Disc 248 is a stainless steel disc surrounded by a rubber gasket.
• the disk 248 is configured to enter the exit channel of the first ring 234. When the disk 248 is horizontal, the disk 248 hermetically blocks the passage in the channel of the first ring 234.
• the rod 250 passes through the disk 248 according to one of its diameters, the two through orifices 246 of the first ring 234 and the slots 244 of the body 232.
• the rod 250 is able to rotate about its main axis.
• the disc 248 is integral in rotation with the rod 250 along the main axis of the rod 250.
• the motor 252 is able to rotate the rod 250.
• the motor 252 is connected to one end of the rod 250.
• the motor 252 is configured to rotate the rod 250 between at least two positions: a closed position, in which the disc 248 hermetically blocks the passage in the channel of the first ring 234, and an open position. In the example described, in the open position, the disc 248 is vertical.
• the motor 252 is also able to hold the rod 250 in the open position or the closed position.
• the cap 204 is able to be moved between a position in which the cap 204 rests on the upper edge of a container accommodated by the conditioning unit, and a position, in which the cap 204 is not at the right of the carousel for parcel 122.
• the cap 204 is integral with the rest of the casting channel 200 in both positions.
• the lid 206 is configured to seal the casting channel 200.
• the lid 206 has a shape complementary to the casting channel 200, so that the internal volume of the casting channel 200 is closed.
• the cover 206 has substantially the shape of a rectangle.
• the lid 206 is brought into contact with the casting channel 200 at the upper edges 212, 218 of the casting channel 200.
• the contact is made with a rubber seal.
• the lid 206 defines a closed rectangular opening of a lead glazing.
• the rectangular opening is provided for an operator to be able to see a substance in contact with the casting channel 200.
• the washing system 207 is configured to wash the casting channel 200.
• the washing system 207 is a unit for spraying a liquid on the casting channel 200.
• the washing system 207 comprises at least one manifold connected to a water distribution system.
• the manifold consists of a main pipe and outlets.
• the main pipe extends from the rotating neck 202 to the cap 204, through the casting channel 200 outside the interior volume of the upper end.
• the main pipe extends on the roof 242 of the cap 204 in a circle of radius between 0.7 and 0.95 times the radius of the roof 242 of the cap 204.
• the main pipe at regular intervals defines outlets.
• the outlets connect the outlets of the main pipe to the inner volume of the tundish 200 or the cap 204.
• the outlets are secondary straight pipes.
• the water treatment unit 20 is configured to collect waste water for washing and rinsing and to treat them for reuse for washing and rinsing the conditioning device.
• the water treatment unit 20 comprises a first tank 260, a second tank 261, a third tank 262, a first pump system 263, a second pump system 264 and an outlet system 265.
• the first vessel 260 includes a first inner vessel 266, a first outer vessel 268, a first cover 270, a first gate 272, a stirring system 274 and a filling system 275.
• the first inner vessel 266 is a rectangular vessel, having a length and a width, defining an interior volume.
• the first inner vessel 266 includes vertical walls and a bottom.
• the first inner vessel 266 includes a first hermetic plate 275b.
• the first plate 275b has substantially the same dimensions as a vertical wall of the first inner vessel 266.
• the first plate 275b is placed in the inner volume of the first inner vessel 266, parallel to the vertical wall whose first plate 275b has the same dimensions.
• the first plate 275b is spaced from the bottom of the first inner tub 266 by a space of between 150 mm and 200 mm, and more particularly between 175 mm and 180 mm.
• the first plate 275b delimits two volumes in the first inner vessel 266 which communicate together only near the bottom of the first inner vessel 266.
• the first outer vessel 268 is a rectangular vessel having a length and a width defining an interior volume. The length and width of the first outer vessel 268 are respectively greater than the length and width of the first inner vessel 266.
• the first outer vessel 268 includes vertical walls and a bottom.
• the first inner vessel 266 is placed in the first outer vessel 268.
• the first cover 270 is a rectangular surface, of width and length equal to the width and length of the first inner vessel 266.
• the first cover 270 rests on the vertical walls of the first inner vessel 266.
• the first cover 270 defines two orifices 276.
• the first cover 270 defines a through opening 277.
• the opening 277 is configured to pour rinse and wash water into the interior volume of the first inner vessel 266.
• the opening 277 is connected to a water recovery system.
• the water recovery system is for example a releasably connectable system to the outlet channel of the cap 204.
• the first cover 270, the first inner vessel 266 and the first outer vessel 268 are made of stainless steel.
• the first gate 272 is configured to filter the water in the interior of the first inner vessel 266 during gravitational settling of the water.
• the first grid 272 has the shape of a rectangle having the shape of a horizontal section of one of the two volumes defined by the first plate 275b.
• the first grid 272 comprises holes with a diameter of between 3 mm and 6 mm.
• the first grid 272 is placed in the interior volume of the first inner vessel 266 on one side of the first plate 275b.
• the first gate 272 is parallel to the bottom of the first inner vessel 266.
• the first gate 272 is suspended from the first lid 270.
• the distance between the first gate 272 and the bottom is greater than the distance of the first plate 275b at the bottom of a distance equal to 3 mm to 5%.
• the stirring system 274 is able to stir a liquid contained in the interior volume of the first inner tank 266.
• the stirring system 274 is particularly capable of maintaining in suspension charged water contained in the interior volume of the first inner tank 266.
• the stirring system 274 includes a stirring pad and a motor.
• the stirring blade is elongated along a vertical main axis.
• the stirring paddle extends from the cover 270 into the interior of the first inner tub 266 to a distance at the bottom of the first inner tub greater than the distance to the bottom of the first gate 272.
• the motor is able to rotate the stirring blade around its main axis.
• the filling system 275 is configured to fill the first inner vessel 266 from a water distribution system.
• the filling system 275 comprises a feed pump of the first inner tank 266 in water.
• the feed pump is connected on the one hand to a water distribution system and on the other hand to an orifice 276 defined in the first cover 270.
• the filling system 275 is configured to pour water into the interior volume of the first inner vessel 266 in the volume defined by the first plate 275b including the first grid 272.
• the second tank 261 comprises a second inner tank 278, a second outer tank 280, a second cover 282 and a second gate 284.
• the second inner vessel 278 and the second outer vessel 280 are respectively similar to the first inner vessel 266 and the first outer vessel 268.
• the second inner vessel 278 comprises a second plate 285, identical and similarly located to the first plate 275b of the first inner tub 266.
• the second cover 282 is a rectangular surface, of width and length equal to the width and length of the second inner vessel 278.
• the second cover 282 defines two orifices 286.
• the second cover 282 rests on the vertical walls of the second inner vessel 278.
• the second lid 282, the second inner vessel 278 and the second outer vessel 280 are made of stainless steel.
• the second gate 284 is similar to the first gate 272.
• the second gate 284 is placed in the inner volume of the second inner vessel 278 similarly to the first gate 272 in the first inner vessel 266.
• the third vessel 262 includes a third inner vessel 288, a third outer vessel 290, a third lid 292 and a third gate 294.
• the third inner vessel 288 and the third outer vessel 290 are respectively similar to the first inner vessel 266 and the first outer vessel 268.
• the third inner vessel 288 comprises a third plate 296, identical and similarly located to the first plate 275b.
• the third lid 292 is similar to the second lid 282.
• the third lid 292 defines orifices 297.
• the third lid 292 rests on the vertical walls of the third inner tub 288.
• the third lid 292, the third inner tub 288 and the third outer tub 290 are made of stainless steel.
• the third gate 294 is similar to the first gate 272.
• the third gate 294 is placed in the inner volume of the third inner vessel 288, similarly to the first gate 272 in the first inner vessel 266.
• the first pump system 263 is adapted to transfer water near the bottom of the first inner vessel 266 to the top of the second inner vessel 278.
• the first pump system 263 includes a first pump 298, a first inlet pipe 300 and a first outlet pipe 302.
• the first pump 298 is located outside the interior of the three tanks 260, 261, 262.
• the first pump 298 is able to pump a substance from an inlet to an outlet.
• the entry and the exit are possibly reversible.
• the first inlet pipe 300 is a hermetic pipe extending between two open ends.
• a first end is placed in the inner volume of the first inner tub 266, in the volume defined by the first plate 275b does not include the first gate 272.
• the first end is placed at a distance from the bottom equal to 40 mm at 5% near.
• a second end is connected to the inlet of the first pump 298.
• the first inlet pipe 300 passes through one of the orifices 276 defined in the first cover 270.
• the first outlet pipe 302 is a hermetic pipe extending between two open ends.
• a first end is connected to one of the orifices 286 defined in the second cover 282.
• the first end is placed such that the outgoing substance goes into the interior volume of the second inner vessel 278, in the volume defined by the second plate 285 comprising the second grid 284.
• a second end is connected to the output of the first pump 298.
• the second pump system 264 includes a second pump 304, a second inlet pipe 306 and a second outlet pipe 308.
• the second pump 304 is located outside the volume of the three tanks 260, 261, 262.
• the second pump 304 is able to pump a substance from an inlet to an outlet.
• the entry and the exit are possibly reversible.
• the second inlet pipe 306 is a hermetic pipe extending between two open ends.
• a first end is placed in the internal volume of the second inner tank 278, in the volume defined by the second plate 285 does not include the second gate 284.
• the first end is placed at a distance from the bottom equal to 40 mm at 5% near.
• a second end is connected to the inlet of the second pump 304.
• the second inlet pipe 306 passes through one of the orifices 286 defined in the second cover 282.
• the second outlet pipe 308 is a hermetic pipe extending between two open ends.
• a first end is connected to one of the orifices 297 defined in the third cover 292. The first end is placed such that the outgoing substance goes into the interior volume of the third inner vessel 288, into the volume defined by the third plate 296 comprising the third grid 294.
• a second end is connected to the output of the first pump 298.
• the outlet system 265 is configured to reinsert the treated water from the water treatment unit 20 into the rinse and wash system of the device.
• the outlet system 265 includes an outlet pump 310, a recovery pipe 312 and a distribution pipe 314.
• the outlet pump 310 is located outside the interior volume of the three tanks 260, 261, 262.
• the output pump 310 is able to pump a substance from an inlet to an outlet. The entry and the exit are possibly reversible.
• the recovery pipe 312 is a hermetic pipe extending between two open ends.
• a first end is placed in the inner volume of the third inner tub 288, in the volume defined by the third plate 296 does not include the third gate 294.
• the first end is placed at a distance from the bottom equal to 40 mm at 5% near.
• a second end is connected to the inlet of the output pump 310.
• the recovery pipe 312 passes through one of the orifices 297 defined in the third cover 292.
• the dispensing pipe 314 is a hermetic pipe extending between two open ends.
• a first end is connected to the output of the output pump 310.
• a second end is connected to the water network for washing and rinsing the device or to the liquid inlet 60 of the mixer 12.
• the orifice 52 is defined in the center of the bottom 48 of the tank 26 and has a circular shape.
• the outlet chute 36 is a funnel extending about a vertical axis, between the orifice 52 of the bottom 48 of the tank 26 and a lower end defining an outlet of the outlet chute 36.
• the method comprises the following steps:
• a predetermined quantity of radioactive waste is conveyed in the mixer 12.
• the step of transporting the radioactive waste is carried out by the waste delivery member 14.
• the output chute 36 of the mixer 12 is in the closed position.
• Radioactive waste is introduced into the rotary screw 76 through the material inlet.
• the radioactive waste is crushed by the shaker tree, then convey to the material outlet of the sweeping screw 76 by the screw without rotating core.
• the radioactive waste is introduced into the handling screw 78, 79.
• the handling screw 78, 79 conveys the radioactive waste to the tank 26 of the mixer through the transfer rotor 106 in rotation.
• the scale of the support 104 of the handling screw 78, 79 is able to measure the mass of the material in the handling screw 78, 79.
• the mass of the material introduced into the tank 26 of the mixer is obtained by de-waxing the material of the handling screw 78, 79.
• the feed member 14 of the waste is deactivated when the amount of radioactive waste poured into the mixer 12 reaches a predetermined value. The stage of transportation of the radioactive waste is completed.
• the interior volume 40 of the tank 26 of the mixer 12 contains a predetermined quantity of radioactive waste.
• a predetermined quantity of binder is conveyed into the mixer.
• the outlet chute 36 of the mixer 12 is in the closed position.
• Cement and sand are introduced into the tank 26 of the kneader through the cement inlet 54 and the sand inlet 58 into the two half-covers 28, 30 of the kneader 12.
• the quantity of cement and sand introduced into the tank 26 is known.
• the binder delivery step stops when the amount of cement and sand introduced into the tank 26 reaches a predetermined value.
• the cement and the sand are introduced by a feed member similar to the radioactive waste feed member 14.
• the inner volume 40 of the tank 26 of the kneader 12 contains a predetermined amount of binder.
• the steps for transporting radioactive waste and binder take place in parallel or one after the other.
• the radioactive waste and the binder are kneaded in the inner volume 40 of the tank 26 of the kneader.
• the first mixing step takes place after the radioactive waste and binder delivery steps.
• the first kneading step takes place in the inner volume 40 of the tank 26 of the kneader 12 with the kneading member 32.
• the inner volume 40 of the tank 26 of the kneader contains radioactive waste and binder.
• the outlet chute 36 of the mixer 12 is in the closed position.
• the mixing member 32 is activated.
• the worm gear 66 in rotation kneads the radioactive waste and the binder in the interior volume 40 of the tank, that is to say that the waltz train 66 stirs together the radioactive waste and the binder.
• the mixing of the radioactive waste and the binder is carried out for a predetermined duration, between 2 and 4 minutes.
• the interior volume 40 of the tank 26 comprises a premix of radioactive waste and binder.
• a predetermined quantity of water and / or adjuvant is conveyed into the internal volume 40 of the tank 26 of the mixer 12.
• the outlet chute 36 of the kneader 12 is in the closed position and the interior volume 40 of the tank comprises a premix of radioactive waste and binder.
• the liquid conveying step takes place after the first mixing step.
• Water and / or adjuvants are introduced into the interior volume 40 of the tank through the at least one liquid inlet 60.
• the amount of water and / or additives introduced into the tank 26 is known.
• the liquid conveying step stops when the amount of water and / or admixtures introduced into the tank 26 reaches a predetermined value.
• the internal volume 40 of the tank 26 comprises a predetermined quantity of water and / or adjuvants and the premixing of radioactive waste and binder.
• the premix of radioactive waste and binder, and the liquid are kneaded to form a mixture.
• the second mixing step takes place after the liquid conveying step.
• the second kneading step takes place in the inner volume 40 of the tank 26 of the kneader 12 with the kneading member 32.
• the internal volume 40 of the tank 26 of the kneader contains water and / or adjuvants and the premixing of radioactive waste and binder.
• the outlet chute 36 of the mixer 12 is in the closed position.
• the mixing member 32 is activated.
• the rotating worm gear 66 kneads the water and / or the admixtures and, the premixed mixture of radioactive waste and binder, in the interior volume 40 of the tank 26.
• the worm train 66 stirs together the water and / or the adjuvants and, the premixing of radioactive waste and binder, to form the mixture 122.
• the second mixing is carried out for a predetermined duration, between 4 and 6 minutes.
• the inner volume 40 of the tank 26 comprises a mixture of radioactive waste, binder, water and / or adjuvants.
• the mixture is transferred from the mixer 12 to a container received by the conditioning unit 16.
• the transfer step is implemented by the outlet chute 36 and the transfer member 18.
• the transfer step takes place after the second mixing step.
• the outlet chute 36 is in the closed position.
• the second ring 236 of the cap 204 of the transfer member 18 rests on the upper edge of a container accommodated by the conditioning unit.
• the tank 26 contains in its interior volume 40 the mixture of radioactive waste, binder, water and / or adjuvants.
• the outlet chute 36 of the mixer 12 is moved to the open position.
• the mixture of radioactive waste, binder, water and / or additives leaves the tank 26 through the outlet chute 36.
• the mixture of radioactive waste, binder, water and / or adjuvants is capable of flowing to the transfer member 18.
• the mixture of radioactive waste, binder, water and / or adjuvants is introduced into the casting channel 200 of the transfer member 18 by the rotating neck 202.
• the vibrator 21 1 is activated.
• the vibrator 21 1 mechanically vibrates the casting channel 200.
• the mixture is able to flow in contact with the casting channel 200.
• the mixture flows to the cap 204.
• the mixture is located in the interior volume of the cap 204 at the valve 248 in the closed position.
• the container is filled with mixture.
• the filling step is implemented by the cap 204.
• the cap 204 rests on the upper edge of the container accommodated by the conditioning unit.
• the mixture is in the cap 204.
• the filling step takes place after the transfer step.
• the valve 248 is moved to the open position.
• the mixture enters the interior volume of the container through the outlet channel of the cap 204.
• the mixture is in the interior volume of the container.
• the pervibration stage a strong internal vibration is applied to the mixture in the container.
• the pervibration stage is planned to increase the compactness of the mixture. A larger quantity of mixture, and therefore of radioactive waste, is then able to be stored in the container.
• the container is filled with the mixture.
• the cap 204 rests on the upper edge of the container.
• the pervibration stage takes place after the filling stage.
• the cap 204 is moved, such that the cap 204 is not at the right of the parade for 122. Then, the support 404 moves the vibrating needle or 400 in the position of pervibration. The vibrating needle (s) 400 are then at least partially immersed in the mixture in the interior volume of the container. The vibrating needle 400 is such that its main axis X is parallel to the vertical of the place, therefore to the main axis of the container.
• the rotation system is activated.
• the weight is rotated about the main axis X of the vibrating needle 400 at a given frequency, for example between 10,000 revolutions per minute and 20,000 revolutions per minute.
• the activation of the vibrating needle (s) 400 causes a pervibration of the mixture in the container, that is to say a strong internal vibration of the mixture. This increases the compactness of the mixture. The mixture then takes a more compact layout.
• the carrier 404 moves the vibrating needle 400 within the mixture.
• Such an embodiment corresponds in particular to the case where there is no fixed configuration of the vibrating needle or needles, wherein the vibrating needle or needles are able to vibrate the entire mixture.
• the vibrating needle 400 When an air release of the mixture ceases to be observed, the vibrating needle 400 is deactivated.
• the support 404 moves the vibrating needle (s) 400 to the rest position.
• the interior volume of the container includes the mixture.
• the mixture is more compact than before the stage of pervibration.
• the device for conditioning radioactive waste is regularly washed. However, the entire packaging device is not completely washed once.
• a washing step of the transfer member 18 and the mixer 12 takes place at the end of each packaging process.
• the cleaning member 34 of the kneader 12 and the washing system 207 of the transfer member 18 are activated.
• the internal volume 40 of the tank 26 and the pouring channel 200 are sprayed with charged water.
• the charged water is a water densified by solid charges, in particular sand of particle size equal to 0.4 mm to 5%, cement fines with a diameter of between 50 and 60 ⁇ or melting dusts.
• the internal volume 40 of the tank 26 and the pouring channel 200 are rinsed with clear water.
• the cleaning member 34 of the mixer 12 and the washing system 207 of the transfer member 18 are always activated.
• the internal volume 40 of the tank 26 and the pouring channel 200 are sprayed with high-pressure clear water, between 10 and 20 MPa.
• All the water used during the washing step is harvested and treated by the water treatment unit 20.
• the radioactive waste conditioning device is capable of implementing a radioactive waste conditioning method. This results in an automation of the process.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Chemical & Material Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• High Energy & Nuclear Physics (AREA)
• Dispersion Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Environmental & Geological Engineering (AREA)
• Processing Of Solid Wastes (AREA)
• Mixers Of The Rotary Stirring Type (AREA)
• Accessories For Mixers (AREA)
• Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

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• 2015
  • 2015-04-21 FR FR1553565A patent/FR3035537A1/fr not_active Withdrawn
• 2016
  • 2016-04-19 WO PCT/EP2016/058656 patent/WO2016169929A1/fr active Application Filing
  • 2016-04-19 CA CA2986264A patent/CA2986264A1/fr not_active Abandoned
  • 2016-04-19 CN CN201680034159.2A patent/CN109874300A/zh active Pending
  • 2016-04-19 US US15/575,795 patent/US20180144840A1/en not_active Abandoned
  • 2016-04-19 EP EP16721671.2A patent/EP3286766A1/fr not_active Withdrawn

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