An isolation device and a radioactive waste treatment system

Abstract

An embodiment of the present invention provides an isolation device and a radioactive waste treatment system. The isolation device is applied to the radioactive waste treatment system, and the radioactive waste treatment system is arranged in a containing chamber. The containing chamber is divided into a first containing space and a second containing space by the isolation device. The isolation device includes an isolation layer, and a loading channel is formed on the isolation layer. The loading channel allows radioactive waste to move from the first containing space to the second containing space. A movable sealing cover is further arranged on the isolation layer. When the sealing cover moves to a first position to close the loading channel, the first containing space is isolated from the second containing space. When the sealing cover moves to a second position to unseal the loading channel, the first containing space is communicated with the second containing space. The embodiment of the present invention makes the radioactive waste treatment system have relatively high safety through the isolation device.

Description

Technical Field

[0001] The present invention relates to the technical field of waste treatment, and particularly to an isolation device and a radioactive waste treatment system. Background Art

[0002] The development of nuclear engineering and nuclear technology has led to the generation of an increasing amount of radioactive waste. Radioactive waste is harmful to the human body and cannot be placed randomly, and must be properly disposed of. In the prior art, radioactive waste is usually compressed first, and then the compressed waste after compression is loaded into a barrel for grouting treatment manually. The compression treatment and grouting treatment of radioactive waste are carried out in the same area, resulting in that the grouting staff is extremely vulnerable to the radiation damage of the stored radioactive waste. Therefore, the safety of the radioactive waste treatment system in the prior art is relatively low. Summary of the Invention

[0003] Embodiments of the present invention provide an isolation device and a radioactive waste treatment system to solve the problem that the safety of the radioactive waste treatment system in the prior art is relatively low.

[0004] In a first aspect, embodiments of the present invention provide an isolation device applied to a radioactive waste treatment system, where the radioactive waste treatment system is disposed in a containing chamber, and the containing chamber is divided into a first containing space and a second containing space by the isolation device;

[0005] The isolation device includes an isolation layer, a loading channel is formed on the isolation layer, the loading channel allows radioactive waste to move from the first containing space to the second containing space, and a movable sealing cover is further disposed on the isolation layer. When the sealing cover moves to a first position to close the loading channel, the first containing space is isolated from the second containing space. When the sealing cover moves to a second position to unseal the loading channel, the first containing space is communicated with the second containing space.

[0006] Optionally, a sliding assembly is disposed on the isolation layer, and the sealing cover is connected to the sliding assembly.

[0007] Optionally, the sliding assembly is at least two guide rails, the guide rails are respectively installed on both sides of the loading channel, and both ends of the sealing cover are connected to the guide rails.

[0008] Optionally, a driving assembly is disposed on the isolation layer, the driving assembly is connected to the sealing cover, and is used to drive the sealing cover to move on the sliding assembly.

[0009] Optionally, the driving assembly includes a hydraulic cylinder, and a piston on the hydraulic cylinder is connected to the sealing cover.

[0010] Optionally, a position switch is provided on the isolation layer, and the position switch is used to limit the moving position of the sealing cover.

[0011] Optionally, a sealing assembly is disposed around one side of the loading channel close to the first accommodating space, and the sealing assembly can cooperate with the sealing cover.

[0012] In a second aspect, an embodiment of the present invention provides a radioactive waste treatment system. The radioactive waste treatment system is disposed in an accommodating chamber. The radioactive waste treatment system includes the isolation device according to any one of the first aspects. The radioactive waste treatment system further includes:

[0013] A compression device, the compression device is disposed in the first accommodating space, and the compression device is used to compress radioactive waste;

[0014] A grouting device, the grouting device is disposed in the second accommodating space, and the grouting device is used to grout the radioactive waste after compression treatment.

[0015] Optionally, the compression device includes a clamping assembly, and the clamping assembly is used to move the radioactive waste after compression treatment from the first accommodating space to the second accommodating space through the loading channel.

[0016] Optionally, the grouting device includes a container, the container can be connected to the loading channel, and the container is used to receive the radioactive waste after compression treatment.

[0017] An embodiment of the present invention provides an isolation device and a radioactive waste treatment system. The isolation device is applied to a radioactive waste treatment system. The radioactive waste treatment system is disposed in an accommodating chamber. The accommodating chamber is divided into a first accommodating space and a second accommodating space by the isolation device. The isolation device includes an isolation layer. A loading channel is formed on the isolation layer. The loading channel allows radioactive waste to move from the first accommodating space to the second accommodating space. A movable sealing cover is further disposed on the isolation layer. When the sealing cover moves to a first position to close the loading channel, the first accommodating space is isolated from the second accommodating space. When the sealing cover moves to a second position to unseal the loading channel, the first accommodating space is in communication with the second accommodating space. The embodiment of the present invention has a high safety for the radioactive waste treatment system through the isolation device. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a receiving chamber provided by an embodiment of the present invention;

[0020] Figure 2 It is a schematic structural diagram of an isolation device provided by an embodiment of the present invention. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides an isolation device applied to a radioactive waste treatment system. The radioactive waste treatment system is disposed in a receiving chamber 1, and the receiving chamber 1 is divided into a first receiving space 11 and a second receiving space 12 by the isolation device;

[0023] The isolation device includes an isolation layer 2. A loading channel 3 is formed on the isolation layer 1. The loading channel 3 allows radioactive waste to move from the first receiving space 11 to the second receiving space 12. A movable sealing cover 4 is further disposed on the isolation layer 2. When the sealing cover 4 moves to a first position to close the loading channel 3, the first receiving space 11 is isolated from the second receiving space 12. When the sealing cover 4 moves to a second position to unseal the loading channel 3, the first receiving space 11 is in communication with the second receiving space 12.

[0024] Among them, the accommodation chamber 1 can be a cabinet, or can be a place such as a factory building for placing a radioactive waste treatment system. The isolation device can be welded by steel plates or steel structures and is connected to the civil engineering foundation through bolts. The interface position and shape of the isolation device are coordinated with the civil engineering foundation or designed according to a preset structure. The isolation layer 2 can be an isolation board, or can be an isolation wall of a factory building, etc. The isolation layer 2 can divide the accommodation chamber 1 into two upper and lower accommodation spaces, or can divide the accommodation chamber 1 into two left and right accommodation spaces. The embodiments of the present invention do not limit this. Preferably, for the convenience of moving radioactive waste from the first accommodation space 11 to the second accommodation space 12, the isolation layer 2 divides the accommodation chamber 1 into two upper and lower accommodation spaces, and the first accommodation space 11 is located above the second accommodation space 12. The loading channel 3 can be a through hole, and the shape of the through hole is not limited. Preferably, the loading channel 3 can be a round hole. The sealing cover 4 is used to close the loading channel 3. The form of the sealing cover 4 can be circular or square, etc. Preferably, the sealing cover 4 is square.

[0025] Among them, a compression device can be placed in the first accommodation space 11 for compressing radioactive waste, storing more uncompressed and already compressed radioactive waste. The first accommodation space 11 has a high radioactive radiation. The second accommodation space 12 can place a grouting device for grouting the compressed radioactive waste, with a low radioactive radiation. After moving the compressed radioactive waste from the first accommodation space 11 to the second accommodation space 12, by moving the sealing cover 4 to the first position to close the loading channel 3, so that the first accommodation space 11 is isolated from the second accommodation space 12, physical shielding isolation of the radiation zoning between the high-radiation area and the low-radiation area can be achieved. The isolation device can also provide a logistics or operation channel for shielding walls of similar radioactive factory buildings to isolate various radioactive factory buildings, etc. The first accommodation space 11 and the second accommodation space 12 can also be used to place other radioactive waste treatment devices.

[0026] Among them, the radioactive waste treatment system can be controlled by a PLC (Programmable Logic Controller), and the movement of the sealing cover 4 is controlled by the PLC.

[0027] An embodiment of the present invention provides an isolation device, which is applied to a radioactive waste treatment system. The radioactive waste treatment system is disposed in a containment chamber 1. The containment chamber 1 is divided into a first containment space 11 and a second containment space 12 by the isolation device. The isolation device includes an isolation layer 2. A loading channel 3 is formed on the isolation layer 1. The loading channel 3 allows radioactive waste to move from the first containment space 11 to the second containment space 12. A movable sealing cover 4 is further disposed on the isolation layer 2. When the sealing cover 4 moves to a first position to close the loading channel 3, the first containment space 11 is isolated from the second containment space 12. When the sealing cover 4 moves to a second position to unseal the loading channel 3, the first containment space 11 is in communication with the second containment space 12. The embodiment of the present invention provides a relatively high safety for the radioactive waste treatment system through the isolation device.

[0028] Optionally, a sliding assembly is disposed on the isolation layer 2. The sealing cover 4 is connected to the sliding assembly. Among them, the sliding assembly may include a guide rail 5 or a pulley, etc. The movement of the sealing cover 4 is controlled by the sliding assembly, and the automation degree of the isolation device is relatively high.

[0029] Optionally, the sliding assembly is at least two guide rails 5. The guide rails 5 are respectively installed on both sides of the loading channel 3. Both ends of the sealing cover 4 are connected to the guide rails 5. The movement of the sealing cover 4 is controlled by the guide rails 5, which is convenient for controlling the movement direction of the sealing cover 4 and the control effect is better.

[0030] Optionally, a driving assembly 6 is disposed on the isolation layer 2. The driving assembly 6 is connected to the sealing cover 4 and is used to drive the sealing cover 4 to move on the sliding assembly. Among them, the driving assembly 6 may be a hydraulic cylinder or a pneumatic cylinder, etc. The movement of the sealing cover 4 is controlled by the driving assembly 6, which further improves the automation degree of the isolation device.

[0031] Optionally, the driving assembly 6 includes a hydraulic cylinder. A piston on the hydraulic cylinder is connected to the sealing cover 4. The piston may be located on a side of the sealing cover 4 away from the loading channel 3. The piston may be connected to the surface of the sealing cover 4, and the movement direction of the piston is parallel to the setting direction of the guide rail 5. When the piston moves repeatedly, the piston drives the sealing cover 4 to move repeatedly along the setting direction of the guide rail 5, so that the sealing cover 4 moves to the first position to close the loading channel 3, or the sealing cover 4 moves to the second position to unseal the loading channel 3. By using a hydraulic cylinder as the driving assembly 6, the structure of the isolation device is relatively simple, and the safe and stable movement of the sealing cover 4 can be achieved.

[0032] Optionally, a position switch is provided on the isolation layer 2, and the position switch is used to limit the moving position of the sealing cover 4. The position switch can be arranged at the end of the guide rail 5 or on the hydraulic cylinder, for controlling the stroke of the hydraulic cylinder and state monitoring, limiting the moving position of the sealing cover 4 along the direction of the guide rail 5, enabling precise control of the sealing cover 4 to move to the first position to close the loading channel 3, and also preventing the sealing cover 4 from detaching from the guide rail 5.

[0033] Optionally, a sealing assembly is disposed around one side of the loading channel 3 close to the first accommodating space 11, and the sealing assembly can cooperate with the sealing cover 4. The sealing assembly can be a sealing ring, and the sealing ring can cooperate with the sealing cover 4 to completely isolate the first accommodating space 11 and the second accommodating space 12, for ensuring the relative sealing integrity of the entire device.

[0034] An embodiment of the present invention further provides a radioactive waste treatment system, which is disposed in the accommodating chamber 1. The radioactive waste treatment system includes the isolation device described in the embodiment of the present invention, and the radioactive waste treatment system further includes:

[0035] A compression device, which is disposed in the first accommodating space 11, and the compression device is used for compressing radioactive waste;

[0036] A grouting device, which is disposed in the second accommodating space 12, and the grouting device is used for grouting the compressed radioactive waste.

[0037] Among them, the compression device is used for compressing radioactive waste. Specifically, radioactive waste can be placed in a compression mold for compression.

[0038] The radioactive waste treatment system of the embodiment of the present invention uses the isolation device to divide the accommodating chamber 1 into a first accommodating space 11 and a second accommodating space 12, so that the safety of the radioactive waste treatment system is relatively high.

[0039] Optionally, the compression device includes a clamping assembly, and the clamping assembly is used for moving the compressed radioactive waste from the first accommodating space 11 to the second accommodating space 12 through the loading channel 3. The clamping assembly can be a mechanical gripper. By using the clamping assembly to clamp the compressed radioactive waste and move it from the first accommodating space 11 to the second accommodating space 12, the automation degree of the radioactive waste treatment system is further improved.

[0040] Optionally, the grouting device includes a container which can be connected to the loading channel 3 and is used to receive the compressed radioactive waste. The container can be a barrel, specifically, a 200L standard waste barrel. The container can be connected to the loading channel 3. Specifically, the container can be arranged below the loading channel 3 and connected to the loading channel 3 through a flange, so that the container can receive the compressed radioactive waste passing through the loading channel 3. The flange can adjust the vertical distance between the bottom of the loading channel 3 and the container at the container loading station within a certain stroke. By setting the connection between the container and the loading channel 3, it is avoided that the compressed radioactive waste scatters from the loading channel 3 and affects the subsequent grouting operation.

[0041] Optionally, the number of the loading channels 3 is at least two, and the number of the sealing covers 4 is the same as that of the loading channels 3. By setting the number of the loading channels 3 to be multiple, the waste treatment efficiency of the radioactive waste treatment system can be improved.

[0042] A specific embodiment is used to illustrate the radioactive waste treatment system of the present invention:

[0043] The radioactive waste is compressed by a compression device and can be compressed into a cake shape. The receiving packaging barrel for containing the cake-shaped radioactive solid waste is placed on the cake-shaped radioactive solid waste loading station in the second accommodation space, so that the receiving packaging barrel is directly below the loading channel. By adjusting the height of the non-standard flange on the loading channel, the loading channel is connected to the receiving packaging barrel. In the initial state, the sealing cover is located at the first position to close the loading channel, and the first accommodation space and the second accommodation space are in a relatively independent state. After the compression device completes the overpressure operation on the radioactive waste, under the action of the hydraulic cylinder driving mechanism, the sealing cover is moved to the second position to unseal the loading channel. The single cake-shaped radioactive solid waste is horizontally lifted by a special mechanical gripper equipped on the compression device to directly above the loading channel, and the special mechanical gripper puts the cake-shaped radioactive solid waste into the loading channel and makes it enter the receiving packaging barrel. When a receiving packaging barrel is full, under the action of the hydraulic cylinder driving mechanism, the sealing cover is moved to the first position to close the loading channel. The above operations can be repeated to continue loading the second receiving packaging barrel. After the cake-shaped radioactive solid waste loading is completed, the sealing cover is moved to the first position to ensure the shielding isolation between the first accommodation space and the second accommodation space.

[0044] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0046] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "set", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. Fixed connections can be common technical solutions such as welding, screw connection, and clamping. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An isolation device, characterized in that, Applied to a radioactive waste treatment system, the radioactive waste treatment system is arranged in a containment chamber, and the containment chamber is divided into a first containment space and a second containment space by the isolation device, and the first containment space is located above the second containment space; The isolation device includes an isolation layer, and a loading channel is formed on the isolation layer. The loading channel allows radioactive waste to move from the first containment space to the second containment space. A movable sealing cover is also arranged on the isolation layer. When the sealing cover moves to the first position to close the loading channel, the first containment space is isolated from the second containment space. When the sealing cover moves to the second position to unseal the loading channel, the first containment space is communicated with the second containment space. The loading channel is a through hole; Among them, the first containment space is used for compressing radioactive waste, and the second containment space is used for grouting the compressed radioactive waste.

2. The isolation device according to claim 1, characterized in that, A sliding component is arranged on the isolation layer, and the sealing cover is connected to the sliding component.

3. The isolation device according to claim 2, characterized in that, The sliding component is at least two guide rails, and the guide rails are respectively installed on both sides of the loading channel, and both ends of the sealing cover are connected to the guide rails.

4. The isolation device according to claim 2, wherein, A driving component is arranged on the isolation layer, and the driving component is connected to the sealing cover and is used for driving the sealing cover to move on the sliding component.

5. The isolation device according to claim 4, wherein, The driving component includes a hydraulic cylinder, and the piston on the hydraulic cylinder is connected to the sealing cover.

6. The isolation device according to claim 1, wherein A position switch is arranged on the isolation layer, and the position switch is used for restricting the moving position of the sealing cover.

7. The isolation device according to claim 1, characterized in that, A sealing component is arranged around the side of the loading channel close to the first containment space, and the sealing component can cooperate with the sealing cover.

8. A radioactive waste treatment system, characterized in that, The radioactive waste treatment system is arranged in a containment chamber. The radioactive waste treatment system includes the isolation device according to any one of claims 1-7, and the radioactive waste treatment system further includes: A compression device, the compression device is arranged in the first containment space, and the compression device is used for compressing radioactive waste; A grouting device, the grouting device is arranged in the second containment space, and the grouting device is used for grouting the compressed radioactive waste.

9. The radioactive waste treatment system according to claim 8, characterized in that, The compression device includes a clamping component, and the clamping component is used for moving the compressed radioactive waste from the first containment space to the second containment space through the loading channel.

10. The radioactive waste treatment system according to claim 8, characterized in that, The grouting device includes a container, and the container can be connected to the loading channel, and the container is used for receiving the compressed radioactive waste.

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