KR19990082582A - Crimping device for crimping containers containing radioactive material - Google Patents

Abstract

The compacting device for crimping a container with radioactive material consists of a shielded stockpile container for storing the container, a high pressure press, and an unloading machine unit for unloading the compacted container into a reservoir. At least the high pressure press is here designed as a unit that can be folded and moved.

Description

Crimping device for crimping containers containing radioactive material

To store certain radioactive material from a nuclear power plant, it is first stored temporarily in the same container as it passes through. The container containing the radioactive material is then compressed in order to minimize the space required for storage, and then put back into another reservoir and sealed for final storage. In this method of treatment, it is important to press the container and then to unload the compressed container very quickly to minimize radiation leakage. This compression and transfer of radioactive material containers in nuclear power plants is not done daily, but at a specific time, and because the devices, especially the press equipment, required for this are very expensive, they are designed to be at least partially transportable. It is desirable to. Since a high pressure of about 4000 tonnes is required to squeeze the container, conventional presses, usually with four guide posts, occupy very high heights. Therefore, these presses can only be transported by disassembly. This task is time consuming and expensive.

The present invention relates to a compaction apparatus for compacting a container containing a radioactive material.

1 is a horizontal cross-sectional view of the entire compaction apparatus according to the present invention.

2 is a vertical sectional view of a high pressure press.

3 is a plan view of a high pressure press with a forceps.

4 is a side view of the high pressure press with the case up;

5A is a vertical sectional view of the high pressure press in the charging position.

5B is a vertical sectional view of the high pressure press before the compaction process with the die lowered.

5C is a vertical sectional view of the high pressure press during the compression process.

5D is a vertical sectional view of the high pressure press in a transport position.

6 is a horizontal sectional view of the stockpile container;

7 is a side view of the unloading machine unit.

8A is a horizontal cross-sectional view of a prepress with two prepress pistons away from each other.

8B is a horizontal cross-sectional view of a prepress with two prepress forming pistons meeting each other.

An object of the present invention is to provide a compaction device for crimping a container containing radioactive material so that it can be quickly and easily transported to the input site.

This problem is solved by the features of claim 1. When the system is configured with the unloading machine unit for unloading the shielded container stockpile container, the high pressure press, and the compressed container into the storage container, it is possible to quickly install and dismantle the compaction apparatus according to the present invention. At least the high-pressure press is designed as a unit that can be folded and moved, so that the entire compactor can be quickly and easily transferred from one input location to another without significant assembly and dismantling work.

By placing a preliminary press between the stockpile container and the high pressure press to preliminarily press the container in the pressing direction across the pressing direction of the high pressure press, the effect of the pressing apparatus according to the present invention is remarkably improved. This preliminary compaction reduces the size of the vessel cross section, such as the diameter of the canister, prior to the original compaction process, so that the compacted workpiece from the high pressure press can be unloaded into the same shape as the original vessel. This also saves money. Because the reservoir is the same as the original radioactive material container, no additional reservoir needs to be prepared.

Particularly suitable high pressure presses for use in the compaction apparatus according to the invention are dies which accept the object to be crimped, stamps which can be moved into the die from the ready position and into the dies, and pistons of the piston-cylinder unit which pressurize the die Is done. Here the cylinder is formed inside the yoke. The yoke can move between the working position and the transport position, which is fixed to the guide post when in the working position, and in contact with the stamp into the die with the piston inside the cylinder. These high-pressure presses can be folded into one without cumbersome dismantling, since the yoke supported on the guide posts needs to be released to place the high-pressure press in the transport position. In this transport position all movable parts of the high pressure press are supported by the bottom plate of the high pressure press.

If the high-pressure press has an aid designed to move the die from the loading position to the loading position, it can also act as a yoke drive that allows the yoke to move between the transport position and the working position. Auxiliary devices for moving dies during crimping can also be used to transport the high-pressure presses into one. This reduces the space taken up by the structure and reduces the cost of high pressure presses.

In order to advantageously perform a high pressure press, at least one further piston-cylinder unit is provided inside the piston-cylinder unit. The cylinder of this second piston-cylinder unit is formed inside the piston of the first piston-cylinder unit, and the piston of the second piston-cylinder unit is fixed in dependence on the yoke. Wherein the longitudinal axis of the second piston-cylinder unit is parallel or coincident with the longitudinal axis of the first piston-cylinder unit. This second piston-cylinder unit is inevitably smaller in diameter than the first piston-cylinder unit that produces the main pressure and functions to induce rapid progression and preliminary progress of the high pressure press. Since the second piston-cylinder unit has a small diameter and a cylinder volume, the large piston of the first piston-cylinder unit can be quickly moved first after the pressure fluid is introduced. This movement continues until the force exerted by the second piston-cylinder unit can no longer produce the pressure necessary for the compression. At this point, however, the cylinder space of the first piston-cylinder unit widened by the movement of the piston of the first piston-cylinder unit is already filled with the pressure fluid by the suction action, so that the original piston through the large piston of the first piston-cylinder unit To initiate the compression process, simply pressurize the pressure fluid with a hydraulic pump. This stepwise operation of the two piston-cylinder units significantly speeds up the compression process, which is advantageous for handling radioactive material.

If the high pressure press is provided with a case capable of moving along the guide device, the maneuverability of the high pressure press is further improved. The case works with the bottom plate in the lowered position to seal the high pressure press with little transmission of radiation, and in the raised position it can be loaded and loaded into the high pressure press.

It is also advantageous to have a stockpile and supply device inside the casing, especially for working fluids which pressurize the piston-cylinder units. This construction allows for very rapid use after the high pressure press is transported to the workplace, since the case must be lifted up and the entire unit connected to an energy source. The internal hydraulic connection is already ready for operation. Cylinder space of the first piston-cylinder unit is driven by gravity when the working fluid stockpile is located in a case where the working fluid storage device is located upwards and the piston of the first piston-cylinder unit is moved with the aid of the second piston-cylinder unit. Filled with stuffing. This can also speed up the compaction process.

It is also advantageous if a tong device is provided for bringing the pressed object into or out of the high pressure press. Integrating the tong device into the high pressure press unit makes the whole system more compact and makes the positioning of objects faster and simpler.

Preferably, a shield designed in the form of a corrugation box is provided between the die and the stamp, further obtaining a radiation shielding effect. When squeezing the container, for example, the container ruptures and the leaking radiation stays inside the corrugated box without escaping outside. Preferably, the corrugation box is connected with a suction device for sucking air contaminated with radioactive contamination. The aspirator directs contaminated air to the filter.

The high pressure press described so far can not only be used in the pressing device according to the invention for pressing a container with radioactive material, but in principle can be used in a wide variety of sites where the input of a high pressure press is required. The high pressure press can also be used fixedly placed.

In a preferred embodiment of the crimping device according to the present invention, preferably, a stockpile container provided with a radiation shielding case is provided. Inside it is provided a conveying device for transporting a container with radioactive material, which is designed to move the container from the closed inlet to the closed outlet. The stockpile container can be designed to be transportable, can stand next to a high pressure press, and can be given multiple inlets and outlets. The containers containing radioactive material to be squeezed can be temporarily stored in a special place in a nuclear power plant and then transported to the stocking container at the shortest distance, where it is stored so that no radiation leaks until it is processed by a high pressure press. Within the stockpile container the vessels are then conveyed to the exit closest to the tong device of the high pressure press to enter the trapping range of the tong device. If the container to be compressed is temporarily stored in a stockpile container, the crimping process can be transported directly from the stockpile container to the high pressure press without the need for long distances from the temporary storage at the nuclear power plant to the high pressure press. This is faster.

This stockpile container can in principle also be used irrespective of the crimping device according to the invention.

The unloading machine unit to be used preferentially in the compaction apparatus according to the invention is a crane conveying device. The crane conveyer has at least one tong, which is guided in a vertical direction in a generally cylindrical shield, which is generally connected unmovably with the crane conveyer. And the tongs can enter the reservoir to put down the compressed container. Such a crane conveying device may be configured as, for example, a mobile winch crane, and the tongs are guided relatively straight, and thus, the tongs are relatively straight and there is an advantage of being unshakable when working. Such tongs, preferably in the form of a ring, can immediately capture the squeezed out of the high pressure press since there is no need to wait for the shaking to subside. This speeds up the entire workflow and shortens the time the radioactive material is not shielded. If necessary, the aspirator may also be connected to the radiation shield.

It is advantageous if the tongs take the form of a ring and are designed to enclose and squeeze the crimped container into at least one coat, and the ring-shaped shielding shell is arranged coaxially with the ring-shaped tongs. This configuration reduces the leakage of radiation while the compact leaves the high pressure press and is transported into the final reservoir. This unloading machine unit can in principle also be used irrespective of the crimping device according to the invention.

If the pressing device according to the invention is given a preliminary press, the preferred prepress to be used therein is provided with two cylinders facing each other, which are given two prepress forming pistons which can move towards each other, in a parabolic form. A groove-shaped forming cavity having a cross section of is given to the pressing face of the piston, the longitudinal extension of which is generally perpendicular to the direction of movement of the two prepress forming pistons, with the two prepress forming pistons meeting each other. The inner width between the two forming cavities measured in the direction of movement thereof is smaller than the width of the opening side of each forming cavity in the state where the two prepress molding pistons are separated from each other. Such a preliminary press is preferably arranged between the stockpile container and the high pressure press, and the container to be squeezed, such as a canister, is first radially compressed to reduce its cross section. To prevent the barrel from changing during the preliminary crimping process, allow the barrel to be supported on both the lid and bottom. By reducing the cross section of the barrel in this way, the compacts pressed in the high pressure press can be put into the same kind of reservoir as the original radioactive material container. This not only simplifies the storage management task, but also unifies the radioactive waste container, allowing the same transport container to be used for transporting the non-compressed radioactive material.

In such a prepress, when the two cylinders are arranged and spaced apart so that the object to be pre-pressed can be transported in a direction perpendicular to the direction of travel of the prepress forming piston, the prepress keeps the conveying passage between the stockpile container and the high pressure press intact. Because of the availability, the entire crimping process is faster.

In principle, this preliminary press can also be used for other purposes irrespective of the pressing apparatus according to the present invention.

Figure 1 shows that the crimping device for compressing a container containing a radioactive material according to the present invention is configured in a modular combination. In the stockpile container 2 designed as a module, a large number of containers 5 containing radioactive material are stored. The stockpile container 2 can load the vessels 5 through several inlets 20 and discharge through several outlets 21.

One of the outlets 21 is arranged with a modular preliminary press 4 in which the containers 5 from the stockpile container 2 enter the preliminary press 4 via the roller conveyor 22. In the preliminary press 4, the tong device 10 of the high pressure press 1 can enter the preliminary press 4 from the opposite side of the roller conveyor 22, and the preliminary pressurized container 5 is pulled out to take out the high pressure. Hand over to the press (1). The container 5 'which has been pressed by the high pressure press 1 is removed from the high pressure press 1 by the forceps device 10 and lowered onto the roller conveyor 30 of the unloading machine unit 3. The crane conveying device 31 then lifts the compressed container 5 'and loads it into the reservoir.

As shown in Fig. 1, the modular combination structure of the crimping device, which consists of modules arranged side by side, allows the container 5 to be crimped out of the stockpile container 2 and into the reservoir in the area of the unloading machine unit 3. Keep the paths as straight and as short as possible.

2 shows a vertical cross-sectional view of a high pressure press 1 as a module. Two vertical guide posts 14 and 14 'are fixed to the bottom plate 11, which supports the compressive force. A yoke 15 is fixed to the upper ends of the guide posts 14, 14 ′, which houses the first piston-cylinder unit 16 and the second piston-cylinder unit 17. Between the yoke 15 and the bottom plate 11, the die 12 located on the bottom plate 11 side and the stamp 13 located on the yoke 15 side are perpendicular to the guide posts 14 and 14 ', respectively. It is equipped to move to. Between the die 12 and the stamp 13 is arranged a generally cylindrical shield 18, preferably in the form of a corrugation box.

The die 12 shown in FIG. 2 is pushed down, in which the central portion 120 of the die 12 abuts the bottom plate 11. The central portion 120 of the die 12 is designed in the form of a vertical cylinder and serves to receive the container 5 to be compressed, into which the stamping portion 130 of the stamp 13 can enter, like a piston. have.

The yoke 15 fixed to the upper end of the guide posts 14 and 14 'wraps the guide posts 14 and 14' with the flanged arm portions 151 and 152. Between the flanged arm portions 151, 152 a central portion 150 of the yoke 15 designed to be dome extends, the upper end of which protrudes higher than the height of the guide posts 14, 14 ′.

The dome-shaped central portion 150 of the yoke 15 is provided with a cylinder hole 153 in the form of a bag opening that is open toward the stamp 13. In this cylinder hole 153, the piston 160 of the first piston-cylinder unit 16 is housed so as to be able to move vertically. The lower end surface 161 of the piston 160 on the stamp 13 side is in contact with the upper end surface of the stamp 13 and engaged with the stamp 13, and is preferably screwed. When the piston 160 and the stamp 13 are designed in this manner, the radioactive contamination caused by the radioactive material from the container 5 to be compressed is limited to the stamp 13 and the piston 160 is secured there. have.

The piston 160 has a cylinder bore 163 in the form of a bag opening upwards, immediately opposite the stamp 13. In this cylinder hole 163, the piston 170 can make relative movement with the piston 160 in the axial direction of the first piston-cylinder unit 16. Here, the first piston cylinder unit 16 and the second piston cylinder unit 17 are arranged coaxially. The piston 170 is firmly connected to the central portion 150 of the yoke 15 through the piston rod 171 and is supported by the central portion 150 in the vertical direction.

The working fluid can be supplied into the space between the bottom surface 172 of the piston 170 opposite the central portion 150 and the piston 160, for example through a fluid conduit passing through the piston rod 171. have. The working fluid may also flow into the space between the yoke 15 and the top surface 162 of the piston 160 on the central 150 side of the yoke 15. The operation of the two piston-cylinder units 16, 17 will be described later.

In the flanged arm portions 151 and 152, the yoke 15 is fixed to the guide posts 14 and 14 'in a manner to be described later. Since the fixing on the arm portion 151 and the fixing on the arm portion 152 are made in the same manner, only the case of the arm portion 151 will be described.

The flanged arm portion 151 is perforated with a vertical hole 154, the diameter of which is generally coincident with the outer diameter of the guide post 14 so that the yoke 15 can move up and down on the guide post 14. do. The upper portion of the hole 154, that is, the portion opposite the bottom plate 11, is formed with an enlarged hole portion 154 ', and a portion that passes from the hole 154 to the expanded hole portion 154'. In the ring-shaped stopper 154 " is formed.

The upper end of the guide pillar 14 is provided with a circumferential groove 140, it is possible to insert a support ring 141 consisting of two hemispherical bodies. The outer diameter of the support ring 141 is larger than the outer diameter of the guide post 14 and generally coincides with the inner diameter of the extended portion 154 ′ of the hole 154. On the free upper end of the guide strut 14 lies a lid 142, and the axial ring flange 142 ′ at the bottom of the lid 142 is a flanged arm portion 151 of the yoke 15 and a guide strut ( Into the space between 14, the extension 154 'of the hole 154, in this way centering. A ring flange 142 ″ protruding radially about the axial ring flange 142 ′ is fixed in engagement with the flanged arm portion 151 by screws 143.

In this way, the yoke 15 is a lid 142 supported by a support ring 141 that abuts the stopper 154 ″ of the hole 154, and a free top surface 144 of the guide post 14. In the area between the two is fixed to the guide struts 14. The cover 142 supports the gravity of the yoke 15 itself, and the support ring 141 carries the pressure on the guide struts received by the yoke 15. do.

3 shows the high pressure press 1 in a plan view. As can be seen in this figure, the high pressure press 1 preferably has an angle α formed by a connecting line connecting the center points of the two guide pillars 14 and 14 'and the conveying direction Z of the container 5 to be treated. It is arranged about 45 degrees. This reduces the width of the high-pressure press 1 module and shortens the carrying distance and the carrying time of the container 5 to be compressed. This is an advantageous arrangement, especially from the standpoint of reducing exposure to radiation when treating radioactive material. This angular arrangement also allows the forceps device 10 to be described below to enter the compression chamber of the high pressure press 1 without problems.

3, the tongs device 10 attached to the high pressure press 1 and arrange | positioned inside the high pressure press module is also seen. The tongs device 10 can pivot about an axis parallel to the axis X of the high pressure press 1. The tongs device 10 is provided with forefinger fingers 100 and 101 in a known manner so that the container 5 to be crimped is received at the inlet side A of the high pressure press module and placed below the stamp 13 of the high pressure press. It can be brought into the press chamber and after the end of the press process it can be pulled out again and placed on the roller conveyor 30 at the exit side B of the high pressure press module.

Also shown in FIG. 3 are two auxiliary devices 19, 19 ′, which are arranged vertically, the lower end of which is preferably supported by the yoke 15 or the bottom plate 11. The upper end is fixed to the die 12. The aids 19, 19 ′ can be driven to extend the die 12 in the vertical direction, soon in the crimping direction, to move the die 12 from its lowest position to the up position shown in FIG. 5A. The auxiliary devices 19, 19 'also serve to support the yoke 15, which will not be fixed to the guide posts 14, 14' during high pressure press transportation, and will be described later, It is also used to raise or lower to the working position shown in FIG. 2.

4 is a side view of the high pressure press 1 module. Above the bottom plate 11 is a lid-shaped case 110 which can be moved vertically, which is shown in the raised position. A working fluid storage tank 111 is provided inside the case 110, which is connected to the high pressure press 1 via a connection hose not shown in the drawing. Modular elements may be provided inside the case 110 as a radiation shield, and these elements may block radiation by section depending on the degree of movement of the case 110.

5A, 5B, 5C and 5D show the high pressure press 1 in four different operating states. FIG. 5A shows the posture of the high pressure press 1 waiting to receive the container, FIG. 5B shows the posture of the high pressure press 1 just before the pressing process begins, and FIG. 5C is in the pressing process, In general, the high pressure press 1 is shown when the maximum compression is achieved. 5D shows the high pressure press 1 being projected together for transport. Now I will explain in turn the operation of the high-pressure press shown in each drawing.

5A shows a high-pressure press 1 in a posture for filling a container, in which both the first piston-cylinder unit 16 and the second piston-cylinder unit 17 are fully retracted and gathered. In other words, each piston is completely inside the cylinder. The stamp 13 is in a raised position by hydraulic pressure inside the upper cylinder space 173 above the piston 170 of the second piston-cylinder unit 17. The die 12 is in a raised position with the aid of the aids 19, 19 ′ attached thereto, which is in contact with the stamp 13. At this time, the pressing portion 130 enters the cylinder hole 121 in the central portion 120 of the die 12. In this way, the space between the die 12 and the bottom plate 11 can be freely accessed, so that the container 5 to be pressed by the tong device 10 is lowered on the bottom plate 11 below the pressing part 130. You can let go.

In FIG. 5B the die 12 is lowered with the aid of the aids 19, 19 ′, with the lower end of the die 12 touching the bottom plate 11. Here, the die 12 surrounds the container 5 to be compressed. Of course, the stamp 13 is not yet down. In this position, the corrugated shield 18 between the die 12 and the stamp 13 is fully extended.

Now when the working fluid is first introduced into the lower cylinder space 174 below the piston 170 of the second piston-cylinder unit 17, the piston 160 of the first piston-cylinder unit 16 is relatively fast. Go down. This is because the working cross section of the second piston-cylinder unit 17 is smaller than the working cross section of the first piston-cylinder unit 16. When the piston 160 of the first piston-cylinder unit 16 is lowered in this way, the stamp 13 is also moved downward. The stamped portion 130 then enters the cylinder hole 121 in the central portion 120 of the die 12. When the piston 160 moves downward so that the cylinder space between the upper surface 162 of the piston 160 and the central portion 150 of the yoke 15 becomes larger and larger, the low pressure in the working fluid supply tank connected thereto is reduced. This occurs and the working fluid is sucked into the cylinder space in the stock tank (111). It is the gravity of the working fluid that supports the movement of this working fluid. This is because the storage tank 111 is located higher than the upper center portion 150 of the yoke 15.

From the moment when the press-in part 130 comes into contact with the container 5 to be compressed, the back pressure increases, and only the pressure applied by the second piston-cylinder unit 17 can no longer press the container 5. Until then, the working fluid sucked into the cylinder space of the first piston-cylinder unit 16 between the piston 160 and the yoke center 150 is now pressurized, and the working fluid being pressurized continues to flow further. do. In this way the working surface of the first piston-cylinder unit 16 which is much wider than the working surface of the second piston-cylinder unit 17 takes effect and the pressing process continues at a very high pressure, whereby the container 5 The maximum compression state shown in FIG. 5C is reached.

The stamp 13 is then lifted up by the hydraulic pressure of the working fluid introduced into the upper cylinder space 173.

5D shows the high pressure press 1 being projected together for transport. In order to reach this state, each screw 143 is first loosened to release each cover 142 of the guide posts 14 and 14 ', which is performed by the die 12 through its auxiliary devices 19 and 19'. If the bottom plate 11 is supported, the die 12 is supported by the yoke 15 through its auxiliary devices 19 and 19 'in a position consistent with that shown in Fig. 5A. You will be in a position consistent with that shown in 5B. The cover 142 is then removed from the guide guide, and the yoke 15 is lowered down with the stamp 13 and optionally the die 12, which are assisted by the aids 19 and 19 '. To move down. At this time, the yoke 15 may move down and up through the downward motion of the stamp 13 or through the auxiliary devices 19 and 19 'by its own weight. Then, if the support ring 141 is composed of several parts can be dismantled. In addition, the high pressure press may be braked for transport in the transport posture shown in FIG. 5D. Then, the case 110 is lowered and the high pressure press 1 is closed. In this way the high pressure press is projected together into a compact unit for transport. In this way, the height of the structure is reduced, so that the high-pressure press can run relatively easily.

6 shows a stockpile container 2. As already described in detail above, the stockpile container 2 has a case for blocking radiation, which has at least one closureable inlet 20 and at least one closureable outlet 21. In the embodiment according to FIG. 6, four closureable inlets 20 and two closureable outlets 21 are provided. These inlets and outlets can also be closed to block radiation. The roller conveyor 22 is provided in both an inlet and an exit side. Inside the stockpile container 2, for example, conveying devices such as chain conveyors or roller conveyors are provided side by side in the longitudinal direction. In addition, at least one transverse feeder 24 is provided which works in a direction across the longitudinal feeders 23, 23 ', 23 ". In this way, the stockpile container 2 is provided with a container 5 through an arbitrary inlet. Inside the stockpile container 2, and with the aid of a feeder, the container 5 can be arranged and rearranged in all possible directions, and there is also a horizontal and vertical feeder inside the stockpile container 2. This allows the container 5 to be loaded quickly and without interruption, thereby enabling the continuous supply of these containers to the high pressure press.

7 shows the unloading machine unit 3 as seen from the side. The moving track 33 in the form of a beam protruding from the wall is fixed to the side portion of the high pressure press module so that it can be attached to the side portion of the high pressure press module or rotated to enter the inside when transporting. The crane conveying apparatus 31 is arranged to be movable along the moving track and is suspended on the moving track. The crane conveying device 31 has a ring portion 34, which is generally formed in a ring shape, which may be composed of two semi-cylindrical hemispheres, which are to be radially retracted or opened with the aid of the drive device 35. Can be. In this way, the two hemispheres can capture and release the compressed container 5 '. Since the compressed container 5 'is enclosed by two hemispheres in the captured state, the hemispheres serve as a kind of radiation shield.

The tongs 34, which are ring-shaped and generally cylindrical, enter the ring-shaped and cylindrical shielding sheath 36 and can move vertically therein. The shield sheath 36 is coupled with a movable winch 37 which moves on the moving track 33 so that it is not generally swingable, that is to say not shaken during operation. In this way, the pendulum motion of the tong part 34 is suppressed when the crane type conveying device 31 is moved and when the tong part 34 is moved up and down. Therefore, as in the conventional crane, there is no need to wait until the shaking of the crane conveying apparatus has subsided, so that the tong portion 34 can receive the compressed container 5 'very quickly. In this way, the overall working time can be significantly reduced, minimizing the exposure time to radioactive material outside the shielding area. The compressed container 5 'can be loaded into the reservoir by such a lift carrier 31. Several compressed containers 5 'may be inserted into a reservoir having the same size as the non-pressed container 5.

8A and 8B show a preliminary press 4 with two guide cylinders 40, 42 facing each other. In the guide cylinders 40 and 42, two prepress pistons 41 and 43, which are movable toward each other, are arranged to be able to move in the horizontal direction. The prepress pistons 41, 43 are driven by piston-cylinder units 46, 47. Groove-shaped forming cavities 44 and 45 are provided on the pressing faces of the preliminary press-forming pistons 41 and 43 facing each other. The groove-shaped forming cavities 44 and 45 have a parabolic cross section. The longitudinal extension of the forming cavities 44, 45 is generally perpendicular to the direction of movement of the two prepress forming pistons 41, 43, preferably in the pressing direction of the high pressure press 1, so in this embodiment the vertical direction. Proceeds to. The dimensional characteristics of the parabolic cross sections of the forming cavities 44 and 45 show that the two forming cavities 44 measured in the compression axis Y of the prepress, i.e. measured in the direction of movement of the two prepress forming pistons 41 and 43. , The inner width between 45 is smaller than the width of the opening side of each of the molding cavities 44 and 45 measured with the two pre-press molding pistons 41 and 43 away from each other. The width of the former is indicated by a in FIG. 8B and the width of the latter is indicated by b in FIG. 8A. When the forming cavities 44 and 45 are formed in a parabolic shape, the container 5, which has a diameter of approximately b in the starting state, is compressed to a smaller diameter a, so that the container 5 ', which is later compressed in the vertical direction, is empty. It can be put back in (5). As shown in Fig. 8B, in the state where the pre-press forming pistons 41 and 43 are maximally pushed toward each other, their opposing ends are engaged with each other, resulting in a cylindrical space having a diameter approximately a between them. In order to prevent the length of the container from changing during the preliminary compression process, the container is held on both the lid and the bottom.

An interspace is formed between the guide cylinders 40, 42 of the preliminary press 4, one side of which is connected to a roller conveyor 22 exiting the stockpile container 2, and the other side of the space is a tongs device. (10) can come in and take out the pre-compressed container (5).

In the crimping device described so far, the high pressure press operates in the vertical direction, but it is conceivable to design the entire apparatus so that the high pressure press operates in the horizontal direction. The axis X of the high pressure press is then placed horizontally. In such an embodiment, a radial opening may be provided in the central portion 120 of the die 12, through which the individual objects to be crimped may be filled into the press. This opening is closed when the compression process is in progress. The connecting line connecting the central axes of the two guide posts 14, 14 ′ is preferably about 45 ° with the horizontal plane.

The modules 1, 2, 3, 4 of the compaction apparatus are preferably provided with wheels capable of running a track.

[Description of the code]

1: high pressure press 2: stockpile container

3: unloading machine unit 4: preliminary press

5: container 5 ': compressed container

10: forceps device 11: bottom plate

12: die 13: stamp

14, 14 ': Guide prop 15: York

16: first piston cylinder unit 17: second piston cylinder unit

18: shield 19, 19 ': auxiliary device

20: entrance 21: exit

22: Roller Conveyor 23, 23 ', 23 ": Longitudinal Feeder

24: horizontal feeder 30: roller conveyor

31: crane conveyor 32: roller conveyor

33: moving track 34: tongs

35: drive device 36: shield sheath

37: movable winch 40: cylinder

41: prepress piston 42: cylinder

43: prepress molding piston 44: forming cavity

45: forming cavity 46: piston-cylinder unit

47: piston-cylinder unit 100: index finger

101: index finger 110: case

111: storage tank 120: center

121: cylinder hole 130: stamping part

140: circumferential groove 141: support ring

142: cover 142 ': axial lower ring flange

142 ": radial ring flange 143: screw

144: top surface 150: center

151: flanged arm portion 152: flanged arm portion

153: cylinder hole 154: hole

154 ': extended hole 154 ": stop

160: piston 161: lower surface

162: top surface 163: cylinder hole

170: piston 171: piston rod

172: lower surface 173: upper cylinder space

174: lower cylinder space

Claims (14)

A shielded stockpile container 2 which stocks the container 5, -High pressure presses (1) and A container with radioactive material, characterized in that it is composed of a loading and unloading machine unit (3) for unloading the compressed container (5 ') into a reservoir, and is designed to be a unit capable of moving at least the high pressure press (1) in one piece. A crimping device for crimping (5). The preliminary press 4 for preliminarily crimping the container 5 in the pressing direction across the pressing direction of the high pressure press 1 is provided between the stockpile container 2 and the high pressure press 1. Crimping device characterized in. In the high pressure press (1) to be used in particular in the crimping apparatus according to claim 1 or 2, A die 12 which receives the article 5 to be crimped, A stamp (13) capable of moving from the ready position into the crimp position and into the die (12), and A piston 160 of the piston-cylinder unit 16 that pressurizes the die 12, A cylinder 153 is formed inside the yoke 15 that can move between the working position and the transport position, and when in the working position the yoke 15 is fixed to the guide posts 14, 14 ′ and is in the transport position. High pressure press, characterized in that when the yoke (15) with the piston (160) entered into the cylinder (153) contacts the stamp (13) in the die (12). 4. An auxiliary device (19, 19 ') is provided which is designed to move the die (12) from the working position to the loading position, wherein the auxiliary device (19, 19') carries the yoke (15). High pressure press (1), characterized in that acts as a yoke drive to move between the working position. The piston-cylinder unit (16) according to claim 3 or 4, wherein at least one further piston-cylinder unit (17) is provided inside the piston-cylinder unit (16), and the cylinder (163) of the first piston-cylinder unit (16). It is formed inside the piston 160, the piston 170 is fixed by the yoke 15, the longitudinal axis of the second piston-cylinder unit 17 is the longitudinal axis X of the first piston-cylinder unit 16 High pressure press (1), characterized in that it is parallel or coincident with. The method according to any one of claims 3 to 5, wherein the high-pressure press (1) is sealed in such a way that it can move along the guide device and work together with the bottom plate (11) at a lowered position so that the rad beam is hardly transmitted. The high pressure press, characterized in that the case 110 is provided in the position where the function is raised and the loading and operation of the high pressure press (1) is made. 7. The high pressure press according to claim 6, characterized in that a stockpile and supply device (111) is provided inside the case (110), in particular for a working fluid which pressurizes the piston-cylinder units. The high pressure press according to claim 6 or 7, characterized in that a tong device (10) is provided for carrying the article (5) to be crimped into or out of the high pressure press (1). 9. The high pressure press according to any one of claims 3 to 8, characterized in that a crimped box shield (18) is preferably provided between the die (12) and the stamp (13). In the stockpile container 2 especially used for the crimping apparatus according to claim 1 or 2, a casing is provided for blocking radiation, and the conveying apparatus 23, 23 ', 23 ", which carries a container containing radioactive material, A stockpile container, characterized in that 24 is provided to move the container (5) from the at least one closureable inlet (20) to the at least one closureable outlet (21). In the loading and unloading machine unit 3 used in particular for the crimping device according to claim 1 or 2, a crane conveying device 31 is provided, and the crane conveying device 31 has at least one clip unit 34. ) Is provided, the tongs 34 are guided in a vertical direction in the generally cylindrical shielding shell 36, the shielding shell 36 is connected to the crane-type conveying device 31 so as not to shake substantially, the tongs ( Unloading machine unit, characterized in that 34 can enter into the reservoir to put down the compressed container 5 '. 12. The tongs of claim 11, wherein the tongs 34 are designed to take the form of a ring and to enclose and capture the crimped container 5 'as at least one coat, wherein the ring-shaped shielding sheath 36 is a ring tongs. And unloading machine unit (3), characterized in that it is coaxial with (34) and disposed thereon. In the preliminary press 4 used in particular for the crimping device according to claim 1 or 2, two guides 40, 42 are arranged facing each other, where two preliminaries can move towards each other. Press forming pistons 41 and 43 are provided, groove-shaped forming cavities 44 and 45 having a parabolic cross section are given to the pressing face of the piston, and the longitudinal extension lines of the forming cavities are two pre-press forming pistons. It is generally perpendicular to the direction of movement of (41, 43), and the inner width between the two forming cavities (44, 45) measured in the direction of movement when the two prepress pistons (41, 43) meet each other is the two prepresses. A preliminary press, characterized in that the forming piston (41, 43) is smaller than the width of the opening side of each forming cavity (44, 45) in a state away from each other. 14. A cylinder according to claim 13, characterized in that the distance between the two cylinders is arranged so that the object to be pre-compressed can be transported through the preliminary press 4 in a direction perpendicular to the advancing direction of the pre-press molding pistons 41 and 43. Preliminary press.