阅读说明：本技术 放射性废物的整备线及整备方法 (Radioactive waste preparation line and preparation method ) 是由 郑建坤 刘玉平 张潇楠 石翠燕 翟丽娜 李楠 王刚 曹端 高松 赵思远 牛绪祥 于 2021-08-23 设计创作，主要内容包括：本发明提供一种放射性废物的整备线及整备方法,包括有整备线屏蔽箱室,整备线屏蔽箱室的下部的中间处设有转运小车通道,整备线屏蔽箱室的上部设有整备室,转运小车通道两侧设有多个固废室,固废室位于整备室下方；整备室上设有多个机械手,整备室的底部设有与固废室数量相等的整备室内盖,整备室内盖下方设有投料口,投料口与固废室一一对应；固废室的顶部设有密封件,固废室的底部设有定心夹紧驱动部件,定心夹紧驱动部件上安装有固废桶,固废桶的入料口位于投料口的正下方。本发明实现了放射性废物的安全转移,避免整备室操作放射性物质时对固废室内环境的污染,避免固废桶从固废室转移出来时对人员操作环境的污染,保证环境和工作人员的安全。(The invention provides a preparation line and a preparation method of radioactive wastes, comprising a preparation line shielding box chamber, wherein the middle part of the lower part of the preparation line shielding box chamber is provided with a transfer trolley channel, the upper part of the preparation line shielding box chamber is provided with a preparation chamber, two sides of the transfer trolley channel are provided with a plurality of solid waste chambers, and the solid waste chambers are positioned below the preparation chamber; the preparation chamber is provided with a plurality of manipulators, the bottom of the preparation chamber is provided with preparation chamber inner covers with the number equal to that of the solid waste chambers, feed ports are arranged below the preparation chamber inner covers, and the feed ports correspond to the solid waste chambers one by one; the top of the solid waste chamber is provided with a sealing element, the bottom of the solid waste chamber is provided with a centering clamping driving part, a solid waste barrel is installed on the centering clamping driving part, and a feeding port of the solid waste barrel is positioned under the feeding port. The invention realizes the safe transfer of radioactive wastes, avoids the pollution to the environment in the solid waste chamber when the preparation chamber operates radioactive substances, avoids the pollution to the operating environment of personnel when the solid waste barrel is transferred out of the solid waste chamber, and ensures the safety of the environment and the personnel.)

1. The radioactive waste preparation line is characterized by comprising a preparation line shielding box chamber, wherein a transfer trolley channel is arranged in the middle of the lower portion of the preparation line shielding box chamber, a preparation chamber is arranged on the upper portion of the preparation line shielding box chamber, a plurality of solid waste chambers are arranged on two sides of the transfer trolley channel, and the solid waste chambers are located below the preparation chamber;

the preparation chamber is provided with a plurality of manipulators, the bottom of the preparation chamber is provided with preparation chamber inner covers with the number equal to that of the solid waste chambers, and feed ports are arranged below the preparation chamber inner covers and correspond to the solid waste chambers one by one;

the solid waste chamber is characterized in that a sealing element is arranged at the top of the solid waste chamber, a centering clamping driving part is arranged at the bottom of the solid waste chamber, a solid waste barrel is mounted on the centering clamping driving part, the centering clamping driving part is used for driving the solid waste barrel to vertically move up and down, and a feeding port of the solid waste barrel is located under the feeding port.

2. The radioactive waste preparation line according to claim 1, wherein the centering and clamping driving means includes a centering and clamping base, a plurality of centering and clamping blocks, a plurality of driving members, and a centering post fixedly installed at the center of the centering and clamping base, the centering and clamping base is fixedly installed at the bottom of the fixed waste chamber, the centering and clamping blocks are installed on the centering and clamping base, and the driving members are fixedly installed at the bottom of the centering and clamping base.

3. The radioactive waste preparation line according to claim 2, wherein the centering gripping block is slidably connected to the centering gripping base.

4. The radioactive waste preparation line according to any one of claims 1 to 3, wherein the waste fixing barrel is horizontally installed on the centering-clamping driving member, and an upper end surface of the waste fixing barrel is parallel to the sealing member.

5. The radioactive waste preparation line according to any one of claims 1 to 3, wherein a hollow cylinder matched with the feed port of the solid waste barrel is protruded downwards from the upper wall surface of the solid waste chamber, one end of the hollow cylinder is hermetically connected with the feed port, and the sealing member is installed on the inner wall surface of the hollow cylinder.

6. The radioactive waste preparation line according to any one of claims 1 to 3, wherein a shield door is provided on an inner wall surface of the waste fixing chamber, and a sealing strip is provided on the shield door.

7. The finishing line for radioactive waste of any one of claims 1 to 3, further comprising a liquid waste temporary storage assembly located at one side of the shielded compartment of the finishing line and a liquid waste storage tank, the liquid waste temporary storage assembly being in communication with the liquid waste storage tank.

8. The radioactive waste preparation line according to claim 7, wherein the liquid waste staging assembly includes a plurality of liquid surge tanks.

9. A method of servicing radioactive waste, comprising:

hermetically transferring the radioactive waste into a preparation chamber;

moving the solid waste barrel into a solid waste chamber, lifting the solid waste barrel to enable a feeding port of the solid waste barrel to be in sealed butt joint with a feeding port of a preparation chamber, then opening an inner cover of the preparation chamber, and at the moment, communicating the solid waste barrel with the preparation chamber, and isolating the preparation chamber from the solid waste chamber;

classifying and preparing the radioactive wastes, transferring the solid radioactive wastes into a solid waste barrel, and transferring the liquid radioactive wastes into a liquid buffer tank;

and closing the inner cover of the preparation chamber to isolate the preparation chamber from the solid waste barrel, and isolating the solid waste barrel to be placed in the solid waste chamber for decay.

10. The method for conditioning radioactive waste, according to claim 9, wherein the step of transferring the solid radioactive waste into a solid waste container comprises:

transferring the solid radioactive waste into a solid waste barrel in a first solid waste chamber, transferring the solid radioactive waste into a solid waste barrel in a second solid waste chamber after the solid waste barrel in the first solid waste chamber is filled with the radioactive waste, and so on;

radioactive waste in the solid waste barrel in the first solid waste chamber decays to reach the standard of the dose rate which can be operated by personnel, the solid waste barrel filled with the radioactive waste is transferred out of the first solid waste chamber, a new solid waste barrel is transferred into the first solid waste chamber, and then the radioactive waste is transferred into the solid waste barrel in the first solid waste chamber again;

when the solid waste barrel in the first solid waste chamber is filled with radioactive waste again, the radioactive waste in the solid waste barrel in the second solid waste chamber decays to reach the standard of the dosage rate which can be operated by personnel, the solid waste barrel in the second solid waste chamber is replaced by a new solid waste barrel, then the radioactive waste is transferred into the second solid waste chamber, and the like, and the cyclic use is formed between two or more solid waste chambers.

Technical Field

The invention relates to the technical field of radioactive waste treatment, in particular to a radioactive waste preparation line and a radioactive waste preparation method.

Background

A certain amount of radioactive waste is generated during the production of radiopharmaceuticals. The radioactive waste is generally placed in a sealed transfer barrel at a waste generating position, then transferred to a designated position by a transfer trolley, transferred into a waste storage barrel, finally transferred to a special place for storage decay until the radioactive substances decay to an uncontrollable level, and then treated as the common waste.

Because the radioactive waste still has certain radioactivity, if no reasonable and effective preparation scheme is available for preparing and storing the radioactive waste, radioactive substances can be easily leaked, the safety of workers is threatened, and the environment is also polluted. Therefore, how to realize safe preparation and storage of radioactive waste without leakage of radioactive materials is an important issue to be solved in the industry at present.

Disclosure of Invention

The invention provides a radioactive waste preparation line and a radioactive waste preparation method, which are used for solving the defects that radioactive substances are easy to leak when the radioactive waste is transferred and stored in the prior art, so that the environmental pollution is caused and the safety of workers is threatened, realizing the safe transfer of the radioactive waste, avoiding the environmental pollution and ensuring the safety of the workers.

The invention provides a radioactive waste preparation line, which comprises a preparation line shielding box chamber, wherein a transfer trolley channel is arranged in the middle of the lower part of the preparation line shielding box chamber, a preparation chamber is arranged on the upper part of the preparation line shielding box chamber, a plurality of solid waste chambers are arranged on two sides of the transfer trolley channel, and the solid waste chambers are positioned below the preparation chambers;

the preparation chamber is provided with a plurality of manipulators, the bottom of the preparation chamber is provided with preparation chamber inner covers with the number equal to that of the solid waste chambers, and feed ports are arranged below the preparation chamber inner covers and correspond to the solid waste chambers one by one;

the solid waste chamber is characterized in that a sealing element is arranged at the top of the solid waste chamber, a centering clamping driving part is arranged at the bottom of the solid waste chamber, a solid waste barrel is mounted on the centering clamping driving part, the centering clamping driving part is used for driving the solid waste barrel to vertically move up and down, and a feeding port of the solid waste barrel is located under the feeding port.

According to the radioactive waste preparation line provided by the invention, the centering and clamping driving part comprises a centering and clamping base, a plurality of centering and clamping blocks, a plurality of driving parts and a centering column fixedly installed at the center of the centering and clamping base, the centering and clamping base is fixedly installed at the bottom of the waste fixing chamber, the centering and clamping blocks are installed on the centering and clamping base, and the driving parts are fixedly installed at the bottom of the centering and clamping base.

According to the radioactive waste preparation line provided by the invention, the centering clamping block is connected with the centering clamping base in a sliding manner.

According to the radioactive waste preparation line provided by the invention, the solid waste barrel is horizontally arranged on the centering clamping driving part, and the upper end surface of the solid waste barrel is parallel to the sealing part.

According to the radioactive waste preparation line provided by the invention, the upper wall surface of the solid waste chamber is downwards protruded with a hollow cylinder matched with the feeding port of the solid waste barrel, one end of the hollow cylinder is hermetically connected with the feeding port, and the sealing element is arranged on the inner wall surface of the hollow cylinder.

According to the radioactive waste preparation line provided by the invention, the inner wall surface of the waste fixing chamber is provided with the shielding door, and the shielding door is provided with the sealing strip.

According to the radioactive waste preparation line provided by the invention, the radioactive waste preparation line further comprises a liquid waste temporary storage assembly and a liquid waste storage tank, the liquid waste temporary storage assembly is positioned on one side of the shielded box chamber of the preparation line, and the liquid waste temporary storage assembly is communicated with the liquid waste storage tank.

According to the radioactive waste preparation line provided by the invention, the liquid waste temporary storage assembly comprises a plurality of liquid buffer tanks.

The invention also provides a preparation method of the radioactive waste, which comprises the following steps:

hermetically transferring the radioactive waste into a preparation chamber;

moving the solid waste barrel into a solid waste chamber, lifting the solid waste barrel to enable a feeding port of the solid waste barrel to be in sealed butt joint with a feeding port of a preparation chamber, then opening an inner cover of the preparation chamber, and at the moment, communicating the solid waste barrel with the preparation chamber, and isolating the preparation chamber from the solid waste chamber;

classifying and preparing the radioactive wastes, transferring the solid radioactive wastes into a solid waste barrel, and transferring the liquid radioactive wastes into a liquid buffer tank;

and closing the inner cover of the preparation chamber to isolate the preparation chamber from the solid waste barrel, and isolating the solid waste barrel to be placed in the solid waste chamber for decay.

According to the method for preparing the radioactive waste, the step of transferring the solid radioactive waste into the solid waste barrel specifically comprises the following steps:

transferring the solid radioactive waste into a solid waste barrel in a first solid waste chamber, transferring the solid radioactive waste into a solid waste barrel in a second solid waste chamber after the solid waste barrel in the first solid waste chamber is filled with the radioactive waste, and so on;

radioactive waste in the solid waste barrel in the first solid waste chamber decays to reach the standard of the dose rate which can be operated by personnel, the solid waste barrel filled with the radioactive waste is transferred out of the first solid waste chamber, a new solid waste barrel is transferred into the first solid waste chamber, and then the radioactive waste is transferred into the solid waste barrel in the first solid waste chamber again;

when the solid waste barrel in the first solid waste chamber is filled with radioactive waste again, the radioactive waste in the solid waste barrel in the second solid waste chamber decays to reach the standard of the dosage rate which can be operated by personnel, the solid waste barrel in the second solid waste chamber is replaced by a new solid waste barrel, then the radioactive waste is transferred into the second solid waste chamber, and the like, and the cyclic use is formed between two or more solid waste chambers.

According to the radioactive waste preparation line and the preparation method provided by the invention, the radioactive waste is placed on the transfer barrel on the transfer trolley, then the transfer trolley is moved to the transfer trolley passage through external force, and then the transfer barrel is lifted through the lifting mechanism carried by the transfer trolley, so that the transfer barrel is communicated with the preparation chamber, and the preparation chamber is isolated from the outside. Then the solid waste barrel is placed on the centering clamping driving part, the centering clamping driving part drives the solid waste barrel to vertically move upwards, so that a feeding port of the solid waste barrel is aligned with a feeding port, the solid waste barrel is abutted to the sealing piece, the preparation chamber and the solid waste chamber are isolated, and then an inner cover of the preparation chamber is opened, so that the preparation chamber is communicated with the solid waste barrel. Then carry out solid-liquid separation to the radioactive waste in the transfer bucket through the manipulator, the manipulator extracts the storage container with liquid radioactive waste bucket in, then the manipulator snatchs out solid radioactive waste from the transfer bucket, and drop into solid waste bucket through the dog-house, and then realized the safe transfer of radioactive waste, to the pollution of the interior environment of solid waste when having avoided the radioactive substance of service room operation, and then avoided the solid waste bucket that receives the pollution to personnel's operational environment when transferring out from solid waste room, thereby environment and staff's safety has been guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is one of the schematic structural views of a finishing line for radioactive waste provided by the present invention;

FIG. 2 is a second schematic view of the radioactive waste preparation line according to the present invention;

FIG. 3 is a cross-sectional view of the centering and clamping driving member of the disposable line of radioactive waste provided by the present invention;

FIG. 4 is one of the schematic structural views of the centering-clamping driving member of the radioactive waste preparation line provided by the present invention;

FIG. 5 is a second schematic view of the configuration of the centering-clamping driving unit of the radioactive waste preparation line according to the present invention;

FIG. 6 is a third schematic view of the construction of the radioactive waste disposal line according to the present invention;

FIG. 7 is a fourth schematic view of the radioactive waste disposal line according to the present invention;

FIG. 8 is an enlarged partial schematic view of a finishing line for radioactive waste provided by the present invention;

FIG. 9 is a flow chart of a method of servicing radioactive waste provided by the present invention;

reference numerals:

1: a shielded box room for the reserve line; 2: a liquid waste temporary storage assembly; 3: a liquid waste storage tank;

11: a preparation chamber; 12: a solid waste chamber; 13: a manipulator;

14: an inner cover of the preparation chamber; 15: a feeding port; 16: a seal member;

17: a centering and clamping driving member; 18: a solid waste barrel; 19: a transfer trolley channel;

121: a hollow cylinder; 122: a shield door; 151: an upper automatic switch assembly;

152: a lower recloser assembly; 153: a detection element; 154: an electrically operated valve;

171: a centering clamping base; 172: a centering clamping block; 173: a drive member;

174: a centering column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The finishing line and the finishing method of radioactive waste according to the present invention will be described with reference to fig. 1 to 9.

As shown in fig. 1 and 2, the radioactive waste preparation line includes a preparation line shielding box chamber 1, a transfer trolley passage 19 is disposed in the middle of the lower portion of the preparation line shielding box chamber 1, a preparation chamber 11 is disposed on the upper portion of the preparation line shielding box chamber 1, a plurality of solid waste chambers 12 are disposed on two sides of the transfer trolley passage 19, and the solid waste chambers 12 are disposed below the preparation chamber 11.

Specifically, the preparation chamber 11 is provided with a plurality of robots 13. The bottom of the preparation chamber 11 is provided with preparation chamber inner covers 14 with the same number as the solid waste chambers 12, feed ports 15 are arranged below the preparation chamber inner covers 14, and the feed ports 15 correspond to the solid waste chambers 12 one by one.

The top of the solid waste chamber 12 is provided with a sealing element 16, the bottom of the solid waste chamber 12 is provided with a centering clamping driving part 17, a solid waste barrel 18 is installed on the centering clamping driving part 17, the centering clamping driving part 17 is used for driving the solid waste barrel 18 to vertically move up and down, and a feeding port of the solid waste barrel 18 is positioned under the feeding port 15.

When using, place radioactive waste on the transport bucket on transporting the dolly, then will transport the dolly and move to transport dolly 19 department through external force, then will transport the bucket lifting through the lifting mechanism of transporting the dolly own area for transport bucket and service room 11 intercommunication, and service room 11 keeps completely cut off with the external world this moment. Then the solid waste barrel 18 is placed on the centering clamping driving part 17, the centering clamping driving part 17 drives the solid waste barrel 18 to vertically move upwards, so that the feeding port of the solid waste barrel 18 is aligned with the feeding port 15, the solid waste barrel 18 is abutted with the sealing part 16, the preparation chamber 11 is isolated from the solid waste chamber 12, and then the preparation chamber inner cover 14 is opened, so that the preparation chamber 11 is communicated with the solid waste barrel 18. Then carry out solid-liquid separation to the radioactive waste in the transfer barrel through manipulator 13, manipulator 13 extracts the liquid radioactive waste bucket to storage container, then manipulator 13 snatchs out the solid radioactive waste from the transfer bucket, and drop into solid waste bucket 18 through dog-house 15, and then realized the safe transfer of radioactive waste, to the pollution of the interior environment of solid waste room 12 when having avoided the radioactive substance of preparation room 11 operation, and then avoided the pollution of the personnel operation environment when the contaminated solid waste bucket 18 shifts out from solid waste room 12, thereby environment and staff's safety has been guaranteed.

When the solid waste barrel 18 in one solid waste chamber 12 is filled with radioactive waste, the inner cover 14 of the preparation chamber is closed to isolate the preparation chamber 11 from the solid waste barrel 18, the manipulator 13 transfers new radioactive waste into the solid waste barrel 18 in the other solid waste chamber 12, and so on until the radioactive waste in the solid waste barrel 18 in the first solid waste chamber 12 decays to a non-radioactive standard, the solid waste barrel 18 is taken out and put into the empty solid waste barrel 18 again, then the manipulator 13 can transfer the radioactive waste into the solid waste barrel 18 in the first solid waste chamber 12 again, when the solid waste barrel 18 in the first solid waste chamber 12 is filled, the radioactive waste in the solid waste barrel 18 in the second solid waste chamber 12 decays to a non-radioactive standard, and so on, so that the solid waste chambers 12 are recycled.

Wherein in an alternative embodiment of the invention the sealing member 16 is for example a sealing gasket. It should be understood that any other suitable structure having a sealing function may be used as the seal member 16.

Among them, in an alternative embodiment of the present invention, the shielded compartment 1 for the service wire is composed of a shield wall. It should be understood that the shielded compartment 1 may be formed of any other suitable shielding structure.

In an alternative embodiment of the present invention, the transfer barrel of the transfer cart uses a double-lid sealing and locking mechanism disclosed in patent No. CN201811099206.9, and the double-lid sealing and locking mechanism is used to realize the sealing and communication between the transfer barrel and the preparation room. It should be understood that the transfer drum may have any other suitable sealing and locking structure.

Further, as shown in fig. 1, fig. 3, fig. 4 and fig. 5, the centering and clamping driving part 17 includes a centering and clamping base 171, a plurality of centering and clamping blocks 172, a plurality of driving parts 173 and a centering post 174 fixedly installed at the center of the centering and clamping base 171, the centering and clamping base 171 is fixedly installed at the bottom of the waste fixing chamber 12, the centering and clamping blocks 172 are installed on the centering and clamping base 171, the driving parts 173 are fixedly installed at the bottom of the centering and clamping base 171, and the bottom of the waste fixing barrel 18 is provided with a groove matched with the centering post. When in use, the solid waste barrel 18 is arranged on the centering clamping base 171, so that the centering column 174 is inserted into the groove of the solid waste barrel 18, the centering clamping block 172 is used for fixing the solid waste barrel 18, the feeding port of the solid waste barrel 18 is always positioned right below the feeding port 15, then the driving component 173 drives the centering clamping base 171 to move upwards, the solid waste barrel 18 moves upwards along with the upward movement until the material inlet of the solid waste barrel 18 is aligned with the material feeding port 15, the solid waste barrel 18 is abutted with the sealing element 16, further realizing the stable upward movement of the solid waste barrel 18, ensuring the tight connection between the solid waste barrel 18 and the feeding port 15, isolating the preparation room 11 from the solid waste room 12, avoiding the pollution to the environment in the solid waste room 12 when the preparation room 11 operates radioactive substances, further, the pollution to the operator operation environment when the polluted solid waste barrel 18 is transferred out of the solid waste chamber 12 is avoided, thereby ensuring the safety of the environment and the workers.

Wherein, the centering clamping block 172 is slidably connected with the centering clamping base 171. When the device is used, the worker can adjust the position of the centering clamping block 172 according to the specification and size of the solid waste barrel 18 in actual use, so that the centering clamping block 172 can just clamp and fix the solid waste barrel 18, and the practicability of the transfer box chamber is improved.

As shown in fig. 3, 4 and 5, in an alternative embodiment of the present invention, the number of the centering clamp blocks 172 is four, for example, and four centering clamp blocks 172 are mounted on the centering clamp base 171 at equal intervals.

Further, as shown in fig. 1 and 2, the solid waste barrel 18 is horizontally mounted on the centering and clamping driving member 17, and the upper end surface of the solid waste barrel 18 is parallel to the sealing member 16. When the device is used, the centering clamping driving part 17 drives the solid waste barrel 18 to vertically move upwards, the upper end face of the solid waste barrel 18 is always kept parallel to the sealing element 16, the solid waste barrel 18 can be just butted with the feed opening 15, the upper end face of the solid waste barrel 18 is abutted against the sealing element 16, the feed opening 15 is only communicated with the solid waste barrel 18, the feed opening 15 is isolated from the solid waste chamber 12, the pollution to the environment in the solid waste chamber 12 when the radioactive substances are operated by the preparation chamber 11 is avoided, the pollution to the operator operation environment when the polluted solid waste barrel 18 is transferred out from the solid waste chamber 12 is further avoided, and the safety of the environment and workers is ensured.

Further, as shown in fig. 6, a hollow cylinder 121 matched with the material inlet of the solid waste barrel 18 is protruded downwards from the upper wall surface of the solid waste chamber 12, one end of the hollow cylinder 121 is hermetically connected with the material inlet 15, and the sealing element 16 is installed on the inner wall surface of the hollow cylinder 121. When the device is used, the centering clamping driving part 17 drives the solid waste barrel 18 to move upwards, so that the upper end of the solid waste barrel 18 is embedded into the hollow cylinder 121, the feeding port of the solid waste barrel 18 is in butt joint with the feeding port 15, the sealing part 16 is located between the solid waste barrel 18 and the hollow cylinder 121 at the moment, the hollow cylinder 121 and the solid waste chamber 12 are isolated, the preparation chamber 11 and the solid waste chamber 12 are isolated, the pollution to the environment in the solid waste chamber 12 when the radioactive substances are operated by the preparation chamber 11 is avoided, the pollution to the operator operation environment when the polluted solid waste barrel 18 is transferred out from the solid waste chamber 12 is avoided, and the safety of the environment and workers is ensured.

Further, as shown in fig. 1 and fig. 2, a shielding door 122 is provided on an inner wall surface of the solid waste chamber 12, and a sealing strip is provided on the shielding door 122. When the radioactive waste detector is used, the shielding door 122 is opened, the solid waste barrel 18 can conveniently enter and exit the solid waste chamber 12, when the solid waste barrel 18 is placed in the solid waste chamber 12 to transport radioactive waste, the shielding door 122 is closed to prevent the radioactive waste from leaking, the sealing strips can further ensure that the solid waste chamber 12 is isolated from the outside, the radioactive material in the solid waste chamber 12 cannot leak to pollute the environment, when the decay of the radioactive waste in the solid waste barrel 18 in the solid waste chamber 12 reaches the standard of the dose rate which can be operated by a person, the shielding door 122 is opened, and then the solid waste barrel 18 is transferred to a specified position to be placed.

Further, as shown in fig. 7, the radioactive waste preparation line further includes a liquid waste temporary storage assembly 2 and a liquid waste storage tank 3, the liquid waste temporary storage assembly 2 is located at one side of the shielded enclosure 1 of the preparation line, and the liquid waste temporary storage assembly 2 is communicated with the liquid waste storage tank 3. When using, radioactive waste shifts and carries out solid-liquid separation in the room 11 of readying, and manipulator 13 is inhaled liquid waste in the liquid waste temporary storage subassembly 2, after liquid waste fills up in the liquid waste temporary storage subassembly 2, discharges liquid waste from liquid waste temporary storage subassembly 2 to liquid waste storage jar 3 again, has avoided directly to shift liquid waste to liquid waste storage jar 3 in and the pipeline liquid waste that leads to remain more, be not convenient for carry out the spot check scheduling problem to liquid waste.

Wherein, the liquid waste temporary storage component 2 comprises a plurality of liquid buffer tanks. When using, in earlier extracting the liquid waste to the liquid buffer tank, fill liquid waste back when liquid buffer tank, discharge liquid waste from the liquid buffer tank in the liquid waste storage jar 3 again, and in order to avoid frequently changing the storage jar, general liquid waste storage jar 3's volume is great, and most all bury underground, through setting up the liquid buffer tank, can make things convenient for the staff to carry out the selective examination to liquid waste, and effectively avoided having too much liquid waste to remain in the pipeline.

Further, as shown in fig. 8, an upper automatic switch assembly 151 and a lower automatic switch assembly 152 are disposed in the feeding port 15, the lower automatic switch assembly 152 is located below the upper automatic switch assembly 151, and a transfer cavity is disposed between the upper automatic switch assembly 151 and the lower automatic switch assembly 152. When the radioactive waste is transferred into the solid waste barrel 18 through the feeding port 15, the manipulator 13 clamps the radioactive waste from the transfer barrel, moves the radioactive waste to the feeding port 15, then drops the radioactive waste into the feeding port 15, then the upper automatic switch component 151 is opened, the lower automatic switch component 152 is closed, the radioactive waste drops into the transfer cavity, then the upper automatic switch component 151 is closed, the lower automatic switch component 152 is opened, the radioactive waste drops into the solid waste barrel 18, then the lower automatic switch component 152 is closed, the transfer of the radioactive waste is realized, the preparation chamber 11 and the solid waste chamber 12 are further isolated, the pollution to the environment in the solid waste chamber 12 when the preparation chamber 11 operates the radioactive waste is avoided, and the pollution to the operation environment of a person when the polluted solid waste barrel 18 is transferred out from the solid waste chamber 12 is further avoided, thereby ensuring the safety of the environment and the working personnel.

As shown in fig. 8, each of the upper automatic opening and closing assembly 151 and the lower automatic opening and closing assembly 152 includes a sensing element 153 and an electric valve 154, and the sensing element 153 is located above the electric valve 154. When the radioactive waste transfer device is used, when the detection element 153 detects that an object passes through, the detection element 153 sends a corresponding signal to the electric valve 154, and the electric valve 154 is opened, so that the upper switch assembly and the lower switch assembly are automatically opened and closed, and the automation degree of radioactive waste transfer is improved.

Here, in an alternative embodiment of the present invention, the detecting element 153 is, for example, an infrared sensor, but it should be understood that any other suitable element having a detecting function may be used as the detecting element 153.

In another aspect, as shown in fig. 9, the present invention also provides a method for reconditioning radioactive waste, comprising:

401. hermetically transferring the radioactive waste into a preparation chamber;

402. moving the solid waste barrel into a solid waste chamber, lifting the solid waste barrel to enable a feeding port of the solid waste barrel to be in sealed butt joint with a feeding port of a preparation chamber, then opening an inner cover of the preparation chamber, and at the moment, communicating the solid waste barrel with the preparation chamber, and isolating the preparation chamber from the solid waste chamber;

403. classifying and preparing the radioactive wastes, transferring the solid radioactive wastes into a solid waste barrel, and transferring the liquid radioactive wastes into a liquid buffer tank;

404. and closing the inner cover of the preparation chamber to isolate the preparation chamber from the solid waste barrel, and isolating the solid waste barrel to be placed in the solid waste chamber for decay.

When the radioactive waste is transferred into the preparation room, the preparation room is isolated from a transfer trolley channel to prevent radioactive substances from leaking, then the radioactive waste is transferred into the solid waste barrel through the feed opening, after the solid waste barrel is filled, an inner cover of the preparation room needs to be closed first, then the solid waste barrel is moved downwards, the preparation room and the solid waste room are kept in an isolated state all the time, the pollution to the environment in the solid waste chamber when the preparation room operates radioactive substances is avoided, the pollution to the operating environment of personnel when the polluted solid waste barrel is transferred out of the solid waste chamber is avoided, and the safety of the environment and the personnel is ensured.

Further, the step of transferring the solid radioactive waste into a solid waste bin specifically comprises:

501. transferring the solid radioactive waste into a solid waste barrel in a first solid waste chamber, transferring the solid radioactive waste into a solid waste barrel in a second solid waste chamber after the solid waste barrel in the first solid waste chamber is filled with the radioactive waste, and so on;

502. radioactive waste in the solid waste barrel in the first solid waste chamber decays to reach the standard of the dose rate which can be operated by personnel, the solid waste barrel filled with the radioactive waste is transferred out of the first solid waste chamber, a new solid waste barrel is transferred into the first solid waste chamber, and then the radioactive waste is transferred into the solid waste barrel in the first solid waste chamber again;

503. when the solid waste barrel in the first solid waste chamber is filled with radioactive waste again, the radioactive waste in the solid waste barrel in the second solid waste chamber decays to reach the standard of the dosage rate which can be operated by personnel, the solid waste barrel in the second solid waste chamber is replaced by a new solid waste barrel, then the radioactive waste is transferred into the second solid waste chamber, and the like, and the cyclic use is formed between two or more solid waste chambers.

When in use, according to the amount of the solid radioactive wastes generated by the production line, the half life period of the radioactive wastes and the capacity of the solid waste barrel, can calculate the required number of the solid waste barrels, can adjust the number of the solid waste barrels according to the actual situation in the practical application, thereby realizing the recycling of a plurality of solid waste barrels, and the required number of the liquid buffer tanks can be calculated in the same way to realize the recycling of the liquid buffer tanks, and each solid waste barrel is independently arranged in a solid waste chamber, thereby effectively avoiding the influence generated between the solid waste barrels, ensuring that when the decay time of the radioactive waste is reached, the radioactive waste in the solid waste barrel can reach the standard of the dose rate which can be operated by personnel, the safe transfer of the radioactive waste is realized, the leakage of radioactive substances can not occur, the cross contamination of different environments is avoided, and the safety of the working personnel is ensured.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.