RU78980U1 - COMPLEX FOR TREATMENT OF CONTAINERS WITH RADIOACTIVE WASTE - Google Patents

Abstract

1. A complex for processing containers with radioactive waste, containing a protective sealed box, at least one container with radioactive waste, equipped with a removable lid mounted on the undercarriage with an electric drive, a post for moving the lid, including a load gripping mechanism with a mechanism for fixing it, a post pouring fixing material, including the unit for supplying fixing material to a container with a supply pipe connected to the installation of its preparation, as well as a vibration device, bl to the remote control, at least one ventilation dust collecting device, a cleaning device, a weighing stand, at least one storage of material components, a container moving device, characterized in that a lid sealing post is introduced therein, all posts are mounted permanently on a mechanized line, in each of which the cart with the container is moved along the processing positions along the common guide rails in the technological sequence of the positions of the posts, respectively to reliably move the lid, fill and seal with the possibility of stopping the container on the line at the location of each post, the post for moving the container lid is made in the form of a portal with frame lifts symmetrically located relative to the rail, mounted with the possibility of approaching and vertical movement of the load gripping mechanism, and with protective shields mounted on them along the rail, the supply unit of the fixing material in the container of the filling station is made in the form of a rotary vertical shaft with a closed

Description

The utility model relates to the field of environmental protection from the effects of environmentally hazardous products, such as radioactive and other toxic wastes from nuclear power plants and special enterprises, civil and military vessels with nuclear reactors, and in particular to devices for packaging processing of containers with radioactive waste (RAW) further burial and / or transportation, and can be used in nuclear, chemical, etc. fields of activity.

An analysis of the prior art in this field showed that a container handling device is known that comprises a container with radioactive waste, equipped with a removable lid, and mounted on a trolley with a control drive, a lid moving post with a load gripping mechanism with a locking mechanism, made in the form of a portal symmetrically located relative to the container with the possibility of vertical movement of the load gripping mechanism (Japan Patent for invention No. 2-33120, IPC: G21F 9/36, publ. 12/20/1984, Collection "Inventions of the World" No. 5 for 1991, issue 99 , p. 22).

The impossibility of achieving the result provided by the claimed device is caused by the fact that the analogue does not provide such functions as pouring a fixing solution into a container with radioactive waste and sealing the lid of the containers, which reduces its radioactive safety and requires additional development and commissioning costs devices of additional elements providing these functions, which lengthens the processing process and

increases its cost, and, therefore, leads to its low efficiency.

A known installation for processing containers with radioactive waste by cementing it, comprising a protective box, a container with radioactive waste mounted on rails with the possibility of entering the protective box, a post for pouring into a container with radioactive waste, containing a feed unit for fixing material in the form of a cement compound with a feed unit, connected to the installation of its preparation, including a box for dry cement, a water supply system associated with a mixer (RF Patent for Utility Model No. 54691, IPC: G21F 9/16, publ. July 10, 2006, bull. No. 19).

The inability to achieve the result provided by the claimed complex is due to the fact that it does not provide for the functions of moving and sealing the container lid, which will require additional costs for their development as part of a single technology, as well as additional designs to ensure safety and ease of maintenance when performing these functions, which says the lack of effectiveness of the analogue.

Of the known technical solutions, the closest to the claimed one is a device for processing containers with radioactive waste, containing a protective sealed box, at least one container with radioactive waste, equipped with a removable lid, mounted on an undercarriage with an electric drive, a post for moving the lid, including a load gripping mechanism with the mechanism of its fixation, post pouring fixing material, including an aggregate supply of fixing material in a container with a supply pipe connected to the installation e preparation, as well as a vibration device, a remote control unit, at least one ventilation dust collecting device, a cleaning device, a weighing stand, at least one storage of material components,

container moving device (RF Patent for the invention No. 2301468 C1, IPC: G21F 9/36, publ. 06/20/2007, bull. No. 17).

The impossibility of achieving the result provided by the claimed complex is due to the fact that in the known device as a single complex there is no post for sealing the lid of the container, which will require its additional introduction and, therefore, additional cost and time, in addition, the constructive implementation of the posts of filling the fixing material and sealing is not well developed in terms of the safety of staff and the creation of ergonomic amenities for maintenance and repair. In addition, the prototype device is adapted only for the use of containers with fine radioactive waste.

When developing the claimed complex, the task was set to increase the efficiency of processing containers with radioactive waste by increasing the number of types of packaging functions, reducing the processing time of containers, improving the conditions of maintenance and repair.

In solving the aforementioned problem, a technical result was achieved, consisting in the development of a complex providing the installation in a single place of all units necessary for mechanizing the line with processing stations, which led to a reduction in the processing time of containers due to its technological flow and the close location of the service units connected to equipment of the posts, and at the same time allowed to provide radiation protection for staff through the use of protective devices at the posts and facilitate, if necessary, repair work, improve the quality of pouring the fixing material and sealing the lid.

The result is achieved due to the fact that the complex for processing containers with radioactive waste contains a protective sealed box, at least one container with radioactive waste, equipped with a removable lid mounted on the chassis

an electrically driven trolley, a cover moving post including a load gripping mechanism with a locking mechanism, a fixing material pouring post, including a fixing material supply unit to a container with a supply pipe connected to its preparation unit, as well as a vibration device, a remote control unit, at least at least one ventilation dust collecting device, a cleaning device, a weighing stand, at least one storage of material components, a moving device onteynerov.

New in the complex is that a lid sealing post has been introduced into it, all posts are mounted permanently on a mechanized line, in each of which moving the trolley with the container along the processing positions is carried out along common guide rails in the technological sequence of the positions of the posts, respectively, moving the lid, filling and sealing with the possibility of stopping the container on the line at the location of each post, the post for moving the container lid is made in the form of a portal with a symmetrical arrangement mounted on rails with frame hoists mounted with the possibility of approaching and vertical movement of the load gripping mechanism, and with protective shields fixed on them along the rail, the unit for supplying fixing material to the container of the pouring station is made in the form of a rotary vertical shaft with a possibility of vertical rotation mounted on it moving along it from the drive with an arrow, at the far end of which a running gear is installed along the arrow at a limited optimal distance, connected to the joint full-time device connected to the supply line, and arranged to interact with the cavity of the container and mounted on the proximal end of the counterweight mounted on the shaft, the sealing post comprises a cover arch structure for the passage of a container truck, to the upper frame

parts of which a horizontal protective platform with protective shields is made along its contour with the possibility of approaching it, the edges of which are equidistant to the center from the edges of the container lid by a distance of at least 20 mm, as well as the supply of the sealing mixture associated with its supply unit and connected to installation of its preparation, and the vibration device is located at the sealing post of the cover.

In addition, the installation of the preparation of the fixing material of the filling station and the preparation of the sealing mixture of the sealing station may contain each box for cutting bags with a movable knife and a grill in the lower part, connected through an elbow to a ventilation dust collecting device, and a water supply system connected to the mixing unit, connected respectively to the feed unit of the fixing material or to the feed device of the sealing mixture.

The counterweight can be made in the form of a balancing spring, and the device for moving containers in the form of a forklift.

The docking device of the post of pouring the fixing material into the container may contain a distribution insert with a junction.

The ability to enter the horizontal platform of the lid sealing post can be carried out by means of a ladder through a protective door mounted on an arched structure.

The possibility of approaching the elevators of the post moving the lid of the container can be carried out by means of stairs.

The container lid sealing post can be made with a walling located on an arched structure.

The complex for processing containers with radioactive waste is shown in the drawings, which depict:

Figure 1 - General diagram of the device complex with a mechanized line;

FIG. 2 is a view aa in FIG. 1 of a lid movement post;

Figure 3 is a view of BB in Figure 1 post filling the container with radioactive waste;

FIG. 4 is a view BB of FIG. 1 of a container closure sealing station; FIG.

Figure 5 is a top view of the protective pad of the sealing station of the container lid;

The complex for processing containers with radioactive waste contains a protective sealed box 1 (Figure 1), which can be made in the form of a metal insulated room, equipped with a door 2 for entering a container 3 with radioactive waste and a door 4 for the export of at least one container. Doors provide tight closing of the box. Boxing can be made of separate sections, and also, if necessary, insulated. RW can be located inside the container in separate barrels or be poured in bulk in it, can be solid, liquid or finely dispersed, etc.

The container 3 is equipped with a removable lid 5 and is mounted on a running carriage 6 (Fig. 1, 2), powered by an electric drive (not shown), mounted on a carriage, moving reciprocally along a transport path made in the form of guide rails 7, along which stationary posts are placed, forming, together with the transport route and the trolley with a container, a mechanized in-line transport line, in each of which the movement of the trolley with a container with radioactive waste is carried out in the technological sequence a container handling.

In the claimed complex, the containers can be used both with a lid without a hole for radioactive waste in barrels or in bulk, and with a hole in its middle closed by a hermetic stopper for finely dispersed or liquid radioactive waste.

The post 8 (Fig. 1) for moving the container lid contains a portal made in the form of frame lifts 9 symmetrically located relative to the rail (Fig. 2) with vertical guide racks 10, which are guides for the load-gripping mechanism 12 moving along the drive from them on the beams 11 and the mechanism fixation

13 covers 5. The implementation of the load-gripping mechanism may be different, for example, include a suspension hook 14 and an automatic grip 15. The lifts 9 are made with stairs 16 and platforms 17 with enclosing structures for maintenance personnel and each is equipped with protective shields 18 fixed on them along the rail for protection against radiation from personnel on site.

Post 19 (Figure 1) pouring fixing material into a container with radioactive waste, for example, cement mortar or concrete mix, contains an aggregate feed unit 20 of fixing material (Figure 3), for example, cement mortar, made in the form of a vertical shaft 21 rotatable from the drive, installed on a bed 22 in bearings, and with a boom 24 vertically moving on rollers along the drive from the drive 23, on the far end of which there is a running gear 26 moving along the boom horizontally moving from the drive 25. The trolley has the possibility of some limited horizontal movement, the extreme positions 27 and 28 of which are selected from the condition of optimal filling of the container volume, which is determined by calculation based on the size of the container, and is connected to a docking device made, for example, in the form of a distribution insert 29 with a joint unit 30 in the form of a cone endings with the possibility of interaction with the cavity of the container in which, for example, barrels with radioactive waste are installed. Distribution insert 29 is connected to the supply pipe 31 mounted on the unit 20. At the proximal end of the boom 24, a counterweight is mounted in the form of a spring 32 with an adjustable compression force rigidly fixed to the shaft 21 and designed to create a force that balances the clamping force of the docking device to the container, at the other end of the arrow. The supply pipe 31 of the unit 20 is connected to the installation 33 of the preparation of the fixing material in the form of a mixture of components, including a box 34 for a cementing component of the mixture, for example, cement. In the inventive design can be used bags

with bulk material - a dry mixture, in this case, a cutting device is provided in the box, for example, a knife moving on a bar (not shown in the drawing). In the lower part of the box, either a grill or a hole for pouring out the material is provided. Under the lower part of the box is a mixing unit 35, mounted movably on the rollers 36, and connected through a hose to the tank 37 (Figure 1) with water. The mixing unit 35 is connected to the supply pipe 31 of the unit 20 and can be performed, for example, comprising a compressor, a water pump, a control panel, an auger, hoses for mixture and air (not shown in the drawing).

Box 34 through the knee 38 (Figure 3) is connected to the ventilation dust collecting device 39 for suction of dusty air from the box. The ventilation device 39 can be made, for example, from a fan with an electric motor, a cyclone, a bag filter, a hopper with a dustpan and a shaking mechanism (not shown). Another possible implementation of the installation of the preparation of the mixture 33 and the ventilation device 39.

Post 40 sealing the lid (Figure 1) is made in the form of an arched structure 41 (Figure 4) for the passage of the trolley with the container, on the frame 42 of the upper part of which is made a horizontal protective platform 43 (Figs. 4, 5) and protective screens 44, which located along the contour of the site. The platform and screens are made of material that does not transmit radiation, for example, from lead. To enter the site 43 of the staff as part of the arch structure 41, a ladder 45 and a protective door 46 are provided. The edges 47 of the platform 43 are equidistant to its center “O” from the edges 48 (Figure 5) of the container lid at a distance not less than 20 mm, which is dictated by ergonomic convenience for personnel when manually filling the seam between the lid 5 and the container body, that is, the screen and the platform with some distance to the center “O” actually repeat the shape of the lid.

Next to the closure sealing station there is a supply device 49 of a sealing mixture, for example concrete, consisting of expanding cement, fine aggregate, plasticizer, a mixture stabilizer and water, made in the form of a rigid pipe fixed to a support and connected to its supply unit 50 mounted in the form of a flexible crevice nozzle. The feed device 49 is connected through a quick-detachable head 51 to the installation for preparing the sealing mixture 52 (Fig. 4), which is made structurally similar to the installation for preparing the fixing material 33 (Fig. 3) described above for the pouring station. In turn, the device 52 is connected to the ventilation dust collecting device 53, made structurally similar to the device 39. It is possible to perform a ventilation device common to filling and sealing posts.

The sealing station 40 of the lid of the container with radioactive waste is equipped with a manual vibrating device 54 (Figure 4) for manual use by maintenance personnel, made in the form of a standard vibrator with a tip.

The complex is equipped with a device 55 (Figure 1) for moving containers, made, for example, in the form of a forklift truck picking up a packed container at the end of a mechanized transport line, as well as a weighing stand 56 with weights, on which containers are also marked. For cleaning aggregates, equipment and pipelines, including flushing mixing units, dispensers and concrete pipelines, a cleaning device is provided, including, for example, a settling tank 57 (Figure 1), a receiving-flushing unit 58 and contaminated water supply pipelines (not shown shown), a pipeline for removing settled water (not shown in the drawing), a purified water pipeline (not shown in the drawing). Purified water can be reused. The wash solution is drained into

tank 57, settles in it, clarified water is sent for reuse, and sludge settles and is removed as it accumulates.

The protective box 1 is equipped with at least one warehouse 59 (Figure 1) for storing the components from which the cement mortar is prepared for pouring into the container with barrels with RW into the space between them, and the sealing mixture, and the movement of which inside the box is carried out by for example, loader 60.

For final curing of the fixing material and endurance of the curing time in the box zone 61 is provided.

All movement of the container by position relative to the posts, as well as the operation of the existing equipment is carried out by signals from the remote control unit 62.

To ensure the safety of the operating maintenance personnel at the sealing station, a frame structure 63 is provided (Figure 4).

The complex works as follows.

A container 3 pre-filled with radioactive waste, for example, with barrels of radioactive waste, is mounted on the trolley 6, its drive is turned on and the trolley is transported by rail 7 through the door 2 to box 1. At the time of loading, as well as the container is unloaded, as well as at the posts, the trolley is fixed on rail track fixing device (not shown) to prevent shifts and skews. The door closes hermetically.

According to the control signal from the remote control unit 62 transmitted to the control panel (not shown) of the post 8 for moving the container lid, the truck with the container stops at the post 8 and is fixed in this position, the drive is turned on and the beams 11 (Figure 2) start together with the load gripping mechanism 12, go down to grab the lid and fix it with the mechanism 13. The lid is removed from the container, pulled up and remains in this position for a while. If necessary, repair and / or inspection and / or inspection

the process of moving the lid, the staff has the opportunity to approach the mechanism 12, climbing stairs 16, while ensuring radiation safety due to the fencing of the person with screens 18.

According to the signal from the control unit 62, the equipment for the preparation of the fixing material - cement mortar begins, for which bags of cement are taken from the warehouse 59 by the loader 60, which then go to box 34 (Figure 3), where the bags are cut with a knife and the cement is poured through the grate into the mixing unit 35, where at the same time pre-metered water from the tank 37 enters through the hose. Various additives can also be used. The ventilation device 39 for removing cement dust is turned on. The filling of the mixing unit is controlled by load cells (not shown in the drawing). In the mixing unit, cement and water are mixed and through the supply pipe 31 the mixture is fed into the cavity of the distribution insert 29, and from it through the conical tip 30 into the cavity of the container with radioactive waste transferred from post 8 to post 19, or if barrels are installed in it, then inter-barrel space of the container, while the position of the trolley on the track is fixed.

For a more uniform filling of the container with cement mortar, the docking device with the distribution insert 29 is connected to the trolley 26 and, due to its installation on the boom 24 and the indicated connection, is able to move at least one horizontal circle around the vertical axis of the shaft 21, as its center, and also reciprocating along the radius of this circle by ensuring the movement of the trolley between points 27 and 28, the optimal distance between which is determined in each case, based on sizes of containers used. The ability to fill the container cavity in various directions increases its quality. By

When the signal from the remote control unit is reached, when the predetermined volume of the mixture is reached, the container is full, its fixation is removed and the trolley returns to post 8, where it is again fixed and, by analogy with the process described above, the container is closed with a lid using the load-gripping mechanism.

Next, the trolley moves, bypassing post 19, to the sealing post of cover 40, passing and installing in the arched passage of structure 41, and is fixed in this position. At the same time, the sealing mixture, prepared in advance by analogy with the technology for preparing the fixing material described above, in the form of concrete mixture or cement mortar, comes from the box 34 of the installation for preparing the sealing mixture 52 via the pipeline of the supply of the sealing mixture 49 to the slotted nozzle 50. The maintenance staff rises along ladder 45, enters the protective platform 43 and, taking the nozzle 50, manually begins to fill the seam between the edges of the lid and the container with a sealing mixture, remaining on the protective the flap, but having the ability to fill the seam, due to the free space between the edge 47 of the protective platform 43 and the edge 48 of the cover 5, and then after filling it vibro-compacts the mixture using a vibrating device 54. At the same time, the protective screens 44, located along the contour of the platform, protect the person from radiation, and their height is chosen so as not to interfere with personnel filling the seams and vibro-sealing the mixture.

After sealing, the container is removed from the mechanized line using a forklift truck 55, then weighed on a weighing stand 56, marked and transported to the holding and final curing zone 61. The whole process from the start of installation at the lid moving post to removal from the container rails takes 50-60 min

Upon completion of curing, the container with radioactive waste is transported through door 4 for further transportation to the disposal site.

The possibility of implementing the inventive complex for processing containers with radioactive waste is confirmed by the use of known means and non-deficient materials, including those presented at the level of functional generalization, with the achievement of a technical result consisting in increasing the efficiency of the device compared to the prototype device, due to the expansion of the number of types of packaging functions, improving the conditions for servicing the container handling process, increasing processing productivity while improving the quality of the fill and the sealing mixture.

Claims (9)

1. A complex for processing containers with radioactive waste, containing a protective sealed box, at least one container with radioactive waste, equipped with a removable lid mounted on the undercarriage with an electric drive, a post for moving the lid, including a load gripping mechanism with a mechanism for fixing it, a post pouring fixing material, including the unit for supplying fixing material to a container with a supply pipe connected to the installation of its preparation, as well as a vibration device, bl to the remote control, at least one ventilation dust collecting device, a cleaning device, a weighing stand, at least one storage of material components, a container moving device, characterized in that a lid sealing post is introduced therein, all posts are mounted permanently on a mechanized line, in each of which the cart with the container is moved along the processing positions along the common guide rails in the technological sequence of the positions of the posts, respectively to reliably move the lid, fill and seal with the possibility of stopping the container on the line at the location of each post, the post for moving the container lid is made in the form of a portal with frame lifts symmetrically located relative to the rail, mounted with the possibility of approaching and vertical movement of the load gripping mechanism, and with protective shields mounted on them along the rail, the supply unit of the fixing material in the container of the filling station is made in the form of a rotary vertical shaft with a closed captured on it with the possibility of vertical movement along it from the drive by an arrow, at the far end of which a running carriage is installed along the arrow at a limited optimal distance, connected to a docking device connected to the supply pipe and configured to interact with the container cavity, and at the near end a counterweight mounted on the shaft is mounted, the lid sealing post contains an arched structure for the passage of the trolley with a container, on the frame of the upper part of which a horizontal ntalnaya protective pad with barrier shields along its contour with the ability to call it, the edges of which are equidistant to the center of the container lid edge to a distance of at least 20 mm, and the feeder of the sealing mixture, connected to a node of its supply and connected with the installation of its preparation. 2. The complex for processing containers according to claim 1, characterized in that the installation for preparing the fixing material of the filling station and the preparation of the sealing mixture of the sealing station contain each box for cutting bags with a movable knife and a grill in the lower part, connected through an elbow to a ventilation dust collector and a water supply system associated with a mixing unit connected respectively to a fixing material supply unit or a sealing mixture supply device. 3. The complex for processing containers according to claim 1, characterized in that the counterweight is made in the form of a balancing spring. 4. The complex for processing containers according to claim 1, characterized in that the device for moving containers is made in the form of a forklift. 5. The complex for processing containers according to claim 1, characterized in that the docking device of the post pouring the fixing material into the container contains a distribution insert with a junction. 6. The complex for processing containers according to claim 1, characterized in that the possibility of entering the horizontal platform of the lid sealing station is carried out by means of a ladder through a protective door mounted on an arched structure. 7. The complex for processing containers according to claim 1, characterized in that the possibility of access to the lifts of the post moving the cover is carried out by means of stairs. 8. The complex for processing containers according to claim 1, characterized in that the sealing post of the lid is made with the enclosing structure located on the arched structure. 9. The complex for processing containers according to claim 1, characterized in that the vibrating device is located at the sealing post of the lid.