Decontamination device for metal plate polluted by radioactive substances

Abstract

The invention provides a decontamination device for a metal plate polluted by radioactive substances, and relates to the technical field of the nuclear industry. The roller line is arranged in the glove box; the decontamination platform is fixedly connected with the roller line; a tray is arranged on the roller line; the ray detector is arranged in the glove box and located on the first side of the decontamination platform; the decontamination robot is arranged in the glove box and located on the second side of the decontamination platform; the recognition camera and the laser equipment are fixedly connected to the decontamination robot; and the laser equipment is fixedly connected with a dust collection cover. According to the scheme, a better collection effect on radioactive particles, aerosol and the like generated by laser decontamination is achieved, limitation of the size of a workpiece is avoided, the pollution level of plate metal can be rapidly reduced, and the decontamination efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear industry, in particular to a device for decontaminating a metal plate contaminated by radioactive substances. Background Art

[0002] During the decommissioning process of nuclear facilities, a large amount of α-contaminated waste is generated. For medium-level radioactive α-contaminated waste (radioactive contamination mainly comes from transuranic nuclides that emit α particles with a half-life greater than 5 years), the existing technology generally uses α double-layer sealed barrels to package the waste and send it to a waste temporary storage facility for temporary storage, which not only occupies the scarce temporary storage resources of the waste facility, but also brings great difficulties to subsequent processing and disposal.

[0003] In the prior art, an external air tent or an internal cavity is usually used to contain and isolate the radioactive contaminants generated during the laser decontamination process. Although the former prevents the spread of radioactive contaminants to the external environment, the system devices in the air tent will also be contaminated; although the latter reduces the scope of contamination by adding a built-in cavity, it also limits the size of the workpiece and has low decontamination efficiency. Summary of the invention

[0004] The invention provides a radioactive substance contaminated metal plate decontamination device to solve the problem of cross contamination and limitation of workpiece size during the decontamination process of the radioactive substance contaminated metal plate.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A device for decontaminating a metal plate contaminated by radioactive substances, comprising:

[0007] Glove box;

[0008] A roller line disposed inside the glove box;

[0009] A decontamination platform fixedly connected to the drum line;

[0010] The roller line is provided with a tray;

[0011] A radiation detector disposed inside the glove box and located on a first side of the decontamination platform;

[0012] A decontamination robot disposed inside the glove box and located on the second side of the decontamination platform;

[0013] An identification camera and a laser device fixedly connected to the decontamination robot;

[0014] A dust collecting cover is fixedly connected to the laser equipment;

[0015] The radioactive contaminated metal plate is placed on the pallet. After the radiation detector detects the contamination value of the radioactive contaminated metal plate, the pallet is transported to the decontamination platform through the roller line, and the decontamination robot decontaminates the radioactive contaminated metal plate.

[0016] Optionally, the decontamination platform comprises:

[0017] Bracket;

[0018] A dust collecting hole provided on the top of the bracket;

[0019] A dust collecting pipeline is arranged at the bottom of the dust collecting hole.

[0020] Optionally, the dust collecting hood comprises:

[0021] Cover body;

[0022] An air blowing pipeline is fixedly connected to the cover body.

[0023] Optionally, a motion actuator is provided on the first side of the decontamination platform;

[0024] A moving and flipping mechanism is provided on one side of the motion actuator, and the moving and flipping mechanism flips the radioactive material contaminated metal plate on the decontamination platform;

[0025] The ray detector is fixedly connected to the motion actuator.

[0026] Optionally, the tray comprises:

[0027] a first pallet and a second pallet;

[0028] The first support plate and the second support plate are fixedly connected by a positioning column;

[0029] The second pallet is placed on the roller line.

[0030] Optionally, a locking device is provided on the first support plate.

[0031] Optionally, both the decontamination platform and the drum line are provided with positioning mechanisms, and the positioning mechanisms are used to position the metal plate contaminated by radioactive substances.

[0032] Optionally, fixing mechanisms are provided on both sides of the decontamination platform, and the fixing mechanisms clamp the metal plate contaminated by the radioactive substance so that the metal plate contaminated by the radioactive substance is fixed on the decontamination platform.

[0033] Optionally, the radioactive material contaminated metal plate decontamination device further comprises: a transition cabin;

[0034] The transition cabin is arranged outside the glove box and is fixedly connected to the glove box.

[0035] Optionally, the radioactive material contaminated metal plate decontamination device further comprises:

[0036] A ventilation and exhaust system disposed outside the glove box and communicating with the interior of the glove box;

[0037] The ventilation and exhaust system includes a pipeline, and the pipeline is connected to the glove box;

[0038] An air pump is fixedly connected to the pipeline.

[0039] The above solution of the present invention includes at least the following beneficial effects:

[0040] The above scheme of the present invention includes: a glove box; a roller line arranged inside the glove box; a decontamination platform fixedly connected to the roller line; a tray arranged on the roller line; a radiation detector arranged inside the glove box and located on the first side of the decontamination platform; a decontamination robot arranged inside the glove box and located on the second side of the decontamination platform; a recognition camera and a laser device fixedly connected to the decontamination robot; a dust hood fixedly connected to the laser device; a radioactive contaminated metal plate is placed on the tray, the radiation detector detects the contamination value of the radioactive contaminated metal plate, and then the tray is transported to the decontamination platform through the roller line, and the decontamination robot decontaminates the radioactive contaminated metal plate. The scheme of the present invention has a better collection effect on radioactive particles, aerosols, etc. generated by laser decontamination, is not limited by the size of the workpiece, can quickly reduce the contamination level of plate metal, and effectively improves the decontamination efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of a radioactive substance contaminated metal plate decontamination device provided by an embodiment of the present invention;

[0042] Figure 2 is a top view of a radioactive substance contaminated metal plate decontamination device provided by an embodiment of the present invention;

[0043] Figure 3 is a side view of a radioactive substance contaminated metal plate decontamination device provided by an embodiment of the present invention;

[0044] Figure 4 is a schematic structural diagram of a decontamination platform provided by an embodiment of the present invention;

[0045] Figure 5 is a side view of a decontamination platform provided by an embodiment of the present invention;

[0046] Figure 6is a schematic structural diagram of a tray provided by an embodiment of the present invention;

[0047] Figure 7 is a schematic diagram of the structure of a recognition camera and a laser device provided in an embodiment of the present invention;

[0048] Figure 8 is a side view of a recognition camera and a laser device provided by an embodiment of the present invention;

[0049] Fig. 9 is a schematic structural diagram of a ventilation and exhaust system provided by an embodiment of the present invention;

[0050] Fig.10 It is a decontamination process flow chart of a radioactive substance contaminated metal plate decontamination device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0052] like Figures 1 to 3 As shown, an embodiment of the present invention provides a device for decontaminating a metal plate contaminated by radioactive substances, comprising:

[0053] A glove box 7; a roller line 2 arranged inside the glove box 7; a decontamination platform 1 fixedly connected to the roller line 2; a tray 3 is arranged on the roller line 2; a radiation detector 4 is arranged inside the glove box 7 and located on a first side of the decontamination platform 1; a decontamination robot 5 is arranged inside the glove box 7 and located on a second side of the decontamination platform 1; a recognition camera 51 and a laser device 52 fixedly connected to the decontamination robot 5; a dust hood 521 is fixedly connected to the laser device 52; a metal plate contaminated with radioactive substances is placed on the tray 3, the radiation detector 4 detects the contamination value of the metal plate contaminated with radioactive substances, and then transports the tray 3 to the decontamination platform 1 through the roller line 2, and the decontamination robot 5 decontaminates the metal plate contaminated with radioactive substances.

[0054] In this embodiment, the glove box 7 includes a front glove box, an operating glove box and a rear glove box. The front glove box, the operating glove box and the rear glove box are interconnected through an automatic hatch. The overall process flow of this device is completed in the glove box 7 to contain and isolate radioactive contaminated substances.

[0055] The front glove box is used for the isolation of metal plate pretreatment operations and pollution detection operations, and the radiation detector 4 and the motion actuator 61 are placed in the front glove box;

[0056] The working glove box is used for the isolation of the metal plate camera recognition operation and the laser decontamination operation. The recognition camera 51, the moving and turning mechanism 62, the laser equipment 52, and the robot are placed in the working glove box;

[0057] The rear-end glove box is used to isolate the pollution detection operation. After the metal plate is decontaminated, the metal plate is transported to the rear-end glove box for secondary pollution value detection. The rear-end glove box is also equipped with a rear-end radiation detector and a motion actuator.

[0058] The roller line 2 is used for conveying metal plates. The front glove box and the rear glove box are both provided with roller lines 2, which are used for loading and unloading metal plates respectively.

[0059] The pallet 3 is placed on the roller line 2 to transport the metal plates and isolate the metal plates from the roller line 2 .

[0060] The ray detector 4 is used to detect the contamination on the surface of the metal plate, and one set is provided in each of the front glove box and the rear glove box.

[0061] The recognition camera 51 is used to photograph and obtain the size information of the metal plate and perform decontamination auxiliary positioning. The laser device 52 is used for laser decontamination of the surface of the metal plate. The decontamination robot 5 is used to carry the recognition camera 51 and the laser device 52 to realize the automatic movement of the recognition camera 51 and the laser device 52.

[0062] In this embodiment, for the metal plate contaminated by radioactive substances, the pretreatment is first performed before loading, the metal plate is placed on the tray 3, the size of the metal plate (two-dimensional point cloud model) is obtained by the recognition camera 51, the pollution detection zone is designed and determined according to the size of the metal plate and the plate surface size detected by the radiation detector 4, and the surface pollution detection is performed according to the detection zone, and the surface pollution level data of each detection zone is transmitted to the control system for logical operation, and the decontamination sequence and decontamination times of each detection zone are designed by setting the pollution threshold, and the decontamination path is automatically planned and generated. The decontamination robot 5 is equipped with a laser device 52 to realize automatic laser decontamination according to the decontamination path generated by the plan. The decontamination platform 1 is the decontamination station of the laser device 52. The bottom of the decontamination platform 1 is provided with dust collection holes and pipelines to collect the purged particles and reduce cross contamination during the laser decontamination process. A focus retainer is provided at the laser device 52. During the decontamination process, the distance between the laser device 52 and the metal plate can be adjusted in real time to ensure that the metal plate is always at the laser focal length, so as to improve the decontamination effect and will not limit the size of the workpiece.

[0063] After the decontamination is completed, the metal plate is tested for contamination again. Qualified products are removed and unqualified products are returned for decontamination again until they are qualified.

[0064] The radioactive material contaminated metal plate decontamination device of this embodiment, through the design of the decontamination platform and the dust collection hood, has a better collection effect on the radioactive particles, aerosols, etc. generated by laser decontamination, reduces the cross contamination during the decontamination process, and introduces the system's built-in algorithm to make the entire laser decontamination process more targeted. It is not limited by the size of the workpiece, can quickly reduce the contamination level of plate metals, and effectively improves the decontamination efficiency.

[0065] like Figure 4 As shown, in an optional embodiment of the present invention, the decontamination platform 1 includes: a bracket 11; a dust collecting hole 12 arranged on the top of the bracket 11; and a dust collecting pipeline 13 arranged at the bottom of the dust collecting hole 12.

[0066] In this embodiment, the decontamination platform 1 includes a bracket 11, a dust collection hole 12 and a dust collection pipeline 13. The decontamination platform 1 is set at the position of the decontamination robot 5, and the metal plate is transported to the decontamination platform 1, and the decontamination operation is performed by the decontamination robot 5. The decontamination platform 1 is provided with a dust collection hole 12 and a dust collection pipeline 13, and the dust collection pipeline 13 completely covers the dust collection hole 12, and all particles fall from the dust collection hole 12 into the dust collection pipeline 13, and the purged particles are collected, thereby reducing cross contamination during the laser decontamination process.

[0067] like Figure 6 , Figure 7 As shown, in an optional embodiment of the present invention, the dust collecting hood 521 includes: a hood body 522; and an air blowing pipeline 523 fixedly connected to the hood body 522.

[0068] In this embodiment, the dust hood 521 is installed on the laser device 52. A through hole is provided in the central area of ​​the axis of the dust hood 521. The laser head of the laser device 52 can be sleeved inside the through hole. The laser head emits laser light from the central area of ​​the dust hood 521 to remove dirt from the metal plate; the air blowing pipeline 523 is connected to the side of the cover body 522. While the laser device 52 is performing the decontamination operation, the air blowing pipeline 523 blows air into the cover body 522, so that a negative pressure airflow is formed around the dust hood 521 to sweep away the particles generated during the laser decontamination process on the metal surface.

[0069] In an optional embodiment of the present invention, a motion actuator 61 is provided on the first side of the decontamination platform 1; a moving and flipping mechanism 62 is provided on one side of the motion actuator 61, and the moving and flipping mechanism 62 controls the movement and flipping of the radioactive material contaminated metal plate on the decontamination platform 1; the radiation detector 4 is fixedly connected to the motion actuator 61.

[0070] In this embodiment, the entire decontamination device is provided with two sets of motion actuators 61, which are respectively located in the front glove box and the rear glove box. The radiation detector 4 is arranged on the motion actuator 61. The motion actuator 61 is provided with a servo motor and a guide rail. The servo motor drives the radiation detector 4 to move on the guide rail, thereby realizing the movement of the radiation detector 4 in the X, Y, and Z axis directions.

[0071] The moving and flipping mechanism 62 is arranged in the working glove box, and the moving and flipping mechanism 62 can clamp the metal plate to realize the movement and flipping of the metal plate in the working glove box. When the roller line 2 transports the metal plate from the front glove box to the working glove box through the pallet 3, the moving and flipping mechanism 62 clamps the metal plate from the pallet 3 and moves it to the decontamination platform 1, and the decontamination robot 5 controls the laser device 52 to perform laser decontamination on the metal plate. When decontaminating, both the front and back sides of the metal plate need to be decontaminated. After the decontamination of the first side of the metal plate is completed, the moving and flipping mechanism 62 clamps the metal plate and flips it, and then decontaminates the second side of the metal plate.

[0072] like Figure 6 As shown, in an optional embodiment of the present invention, the pallet 3 includes: a first pallet 31 and a second pallet 32; the first pallet 31 and the second pallet 32 ​​are fixedly connected by a positioning column 33; and the second pallet 32 ​​is placed on the roller line 2.

[0073] In an optional embodiment of the present invention, a locking device is provided on the first supporting plate 31 .

[0074] In the above embodiment, the tray 3 includes a first pallet 31 and a second pallet 32 ​​. The first pallet 31 and the second pallet 32 ​​are fixed by positioning columns 33 . The first pallet 31 is used to place the metal plate, and the second pallet 32 ​​is placed on the roller line 2 .

[0075] Two limiting grooves are provided at the two top corners of the first support plate 31, which can enable the top corners of the metal plate to be clamped in the limiting grooves. Two limiting columns are provided at the edge on the side opposite to the limiting grooves, which also play a limiting role for the metal plate. The metal plate can be fixed on the pallet 3 through the two limiting grooves and the two limiting columns, so as to prevent the metal plate from shaking, falling, and other problems during the transportation of the roller line 2.

[0076] A groove is provided between the two limiting posts of the first support plate 31 , through which the moving and turning mechanism 62 can easily clamp the metal plate from the tray 3 .

[0077] A hollow structure is provided in the middle of the second support plate 32 , which can reduce the overall weight of the tray 3 and reduce the pressure on the roller line 2 .

[0078] The positioning column 33 is connected to the first supporting plate 31 and the second supporting plate 32 through upper and lower bolts respectively.

[0079] In an optional embodiment of the present invention, a positioning mechanism 21 is provided on both the decontamination platform 1 and the roller line 2, and the positioning mechanism 21 is used to position the metal plate contaminated by radioactive substances.

[0080] In this embodiment, after the roller line 2 transports the metal plate to the detection area of ​​the radiation detector 4, the positioning mechanism 21 positions the metal plate. After the positioning mechanism 21 determines that the metal plate is located at the preset detection position, the radiation detector 4 starts to detect the radiation level of the metal plate to obtain the radiation value of the metal plate. After the detection is completed, the roller line 2 transports the metal plate to the work glove box, and the positioning mechanism 21 positions the metal plate. After the positioning mechanism 21 determines that the metal plate is located at the preset moving position, the moving and flipping mechanism 62 clamps the metal plate to the decontamination platform 1, and the decontamination robot 5 starts to perform decontamination operations on the metal plate.

[0081] In an optional embodiment of the present invention, fixing mechanisms 22 are provided on both sides of the decontamination platform 1 , and the fixing mechanisms 22 clamp the metal plate contaminated by the radioactive substance so that the metal plate contaminated by the radioactive substance is fixed on the decontamination platform 1 .

[0082] In this embodiment, fixing mechanisms 22 are provided on both sides of the decontamination platform 1. After the moving and flipping mechanism 62 clamps the metal plate onto the decontamination platform 1, the two fixing mechanisms 22 clamp and fix the metal plate, and the decontamination robot 5 starts decontamination to ensure that the metal plate does not slide during the decontamination process.

[0083] After the fixing mechanism 22 clamps and fixes the metal plate, the identification camera 51 is used to assist in positioning the metal plate to determine the edge position of the metal plate, thereby assisting the laser device 52 in determining the decontamination edge of the decontamination area.

[0084] When the decontamination is completed, the fixing mechanism 22 releases the metal plate. At this time, the moving and flipping mechanism 62 receives the signal, and the moving and flipping mechanism 62 clamps the metal plate to the preset moving position. The positioning mechanism 21 performs positioning. After determining the position of the metal plate, the roller line 2 transports the metal plate to the rear glove box. The rear positioning mechanism 21 positions again. After positioning is completed, the radiation level of the metal plate is detected again by the radiation detector 4. If the product is qualified, it will be unloaded through the roller line 2 in the rear glove box; the unqualified product will be returned for re-decontamination treatment until it is qualified.

[0085] like Figures 1 to 3 As shown, in an optional embodiment of the present invention, the radioactive material contaminated metal plate decontamination device further includes: a transition cabin 8; the transition cabin 8 is arranged outside the glove box 7 and fixedly connected to the glove box 7.

[0086] In this embodiment, a transition cabin 8 is provided at the front glove box and the rear glove box respectively, which is used to isolate the front glove box and the rear glove box from the external environment during the loading and unloading process of plate metal.

[0087] The transition cabin 8 is a sealed structure, and its size is compatible with the glove box. A door for loading and unloading is provided on the outer wall on one side of the transition cabin 8, and the other side is connected to the door of the glove box, so that the metal plate is completely isolated during loading and unloading and has no contact with the outside world, thus practicing the principle of minimizing radioactive waste, reducing the radiation dose of personnel during the decontamination operation, and protecting the public and environmental safety.

[0088] like Fig. 9 As shown, in an optional embodiment of the present invention, the device for decontaminating metal plates contaminated by radioactive substances further includes: a ventilation and exhaust system arranged outside the glove box 7 and connected to the interior of the glove box 7; the ventilation and exhaust system includes a pipe 91, and the pipe 91 is connected to the glove box 7; and an air pump 92 fixedly connected to the pipe 91.

[0089] In this embodiment, the ventilation and exhaust system is connected to the glove box 7 and is used for ventilation, exhaust and purification in the front glove box, the working glove box and the rear glove box.

[0090] The ventilation and exhaust system includes a pipe 91 and an air pump 92. The pipe 91 is connected to the glove box 7. The pipe 91 includes two pipes, which are responsible for exhausting air and delivering air respectively. The air pump 92 is connected to the pipe 91. The dust, smoke and radioactive gas generated during the decontamination process of the air pump 92 are quickly discharged from the glove box 7, and then the outside air is sent into the glove box 7 to filter and purify the air in the glove box 7.

[0091] In an optional embodiment of the present invention, the radioactive material contaminated metal plate decontamination device also includes: a control system, which is used to control the entire device, including receiving signals sent by the radiation detector 4, the identification camera 51, and the positioning mechanism 21, controlling the movement of the decontamination robot 5, controlling the decontamination process of the laser equipment 52, controlling the movement of the motion actuator 61, the moving and flipping mechanism 62, and the fixing mechanism 22.

[0092] The radioactive material contaminated metal plate decontamination device also includes an air circuit interface, a water circuit interface, and a floor drain collection system. The air circuit interface is used to introduce compressed air during the subsequent decontamination process of the device body. The water circuit interface and the floor drain collection are used to introduce high-pressure water during the subsequent decontamination process of the device body.

[0093] like Fig.10 As shown, it is a decontamination process flow chart of the radioactive material contaminated metal plate decontamination device of this embodiment, and the specific process flow is:

[0094] For the metal plate contaminated by radioactive substances, pretreatment is first performed before loading. After loading, the workpiece size (two-dimensional point cloud model) of the metal plate is obtained through the recognition camera 51. The pollution detection zone is determined according to the workpiece size and the detection surface size of the radiation detector 4. The motion actuator 61 is equipped with the radiation detector 4 to perform surface pollution detection according to the pollution detection zone, and the surface pollution level data of each detection zone is transmitted to the control system for logical operation. By setting the pollution threshold and the built-in algorithm, the decontamination sequence and decontamination times of each detection zone are designed, and the decontamination path is automatically planned and generated. The decontamination robot 5 is equipped with a laser device to realize the automatic laser decontamination of the metal plate contaminated by radioactive substances according to the decontamination path generated by the plan. The laser device 52 is provided with a focus holding instrument. During the decontamination process, the distance between the laser head and the workpiece can be adjusted in real time to ensure that the workpiece is always at the laser focal length to improve the decontamination effect. After the decontamination is completed, the workpiece is tested for pollution again. Qualified products are unloaded, and unqualified products are returned for re-decontamination treatment until they are qualified.

[0095] The radioactive material contaminated metal plate decontamination device described in the above-mentioned embodiment of the present invention can realize laser decontamination of radioactive material contaminated metal plates, better implements the principle of waste minimization, and can be widely used in the technical fields of nuclear facility decommissioning and three-waste treatment; by introducing the system's built-in algorithm, the entire laser decontamination process is made more targeted, and the contamination level of the metal plate can be quickly reduced, effectively improving the decontamination efficiency; the special design of the dust hood has a better collection effect on the radioactive particles, aerosols, etc. generated by laser decontamination, is not limited by the size of the workpiece, and reduces cross contamination; the long-distance, semi-automatic decontamination operation process greatly reduces the radiation dose and labor intensity of personnel during the waste degradation process.

[0096] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for decontaminating a metal plate contaminated by radioactive substances, characterized in that: include: Glove box (7); A roller line (2) arranged inside the glove box (7); A decontamination platform (1) fixedly connected to the drum line (2); A tray (3) is provided on the roller line (2); A radiation detector (4) disposed inside the glove box (7) and located on a first side of the decontamination platform (1); A decontamination robot (5) disposed inside the glove box (7) and located on a second side of the decontamination platform (1); A recognition camera (51) and a laser device (52) fixedly connected to the decontamination robot (5); A dust collecting cover (521) is fixedly connected to the laser device (52); The radioactive material contaminated metal plate is placed on the pallet (3), and after the radiation detector (4) detects the contamination value of the radioactive material contaminated metal plate, the pallet (3) is transported to the decontamination platform (1) via the roller line (2), and the decontamination robot (5) decontaminates the radioactive material contaminated metal plate.

2. The radioactive material contaminated metal plate decontamination device according to claim 1, characterized in that: The decontamination platform (1) comprises: Bracket (11); A dust collecting hole (12) arranged on the top of the bracket (11); A dust collecting pipeline (13) is arranged at the bottom of the dust collecting hole (12). Laser equipment.

3. The radioactive material contaminated metal plate decontamination device according to claim 1, characterized in that: The dust collecting hood (521) comprises: Cover body (522); An air blowing pipeline (523) fixedly connected to the cover body (522).

4. The radioactive material contaminated metal plate decontamination device according to claim 1, characterized in that: A motion actuator (61) is provided on the first side of the decontamination platform (1); A moving and flipping mechanism (62) is provided on one side of the motion actuator (61), and the moving and flipping mechanism (62) controls the movement and flipping of the radioactive material contaminated metal plate on the decontamination platform (1); The ray detector (4) is fixedly connected to the motion actuator (61).

5. The radioactive material contaminated metal plate decontamination device according to claim 1, characterized in that: The tray (3) comprises: A first support plate (31) and a second support plate (32); The first support plate (31) and the second support plate (32) are fixedly connected via a positioning column (33); The second support plate (32) is placed on the roller line (2).

6. The radioactive material contaminated metal plate decontamination device according to claim 5, characterized in that: The first support plate (31) is provided with a locking device.

7. The radioactive material contaminated metal plate decontamination device according to claim 5, characterized in that: The decontamination platform (1) and the roller line (2) are both provided with positioning mechanisms (21), and the positioning mechanisms (21) are used to position the metal plate contaminated by radioactive substances.

8. The radioactive material contaminated metal plate decontamination device according to claim 7, characterized in that: Fixing mechanisms (22) are provided on both sides of the decontamination platform (1), and the fixing mechanisms (22) clamp the radioactive material contaminated metal plate so that the radioactive material contaminated metal plate is fixed on the decontamination platform (1).

9. The radioactive material contaminated metal plate decontamination device according to claim 1, characterized in that: Also includes: Transition cabin (8); The transition compartment (8) is arranged outside the glove box (7) and is fixedly connected to the glove box (7).

10. The radioactive material contaminated metal plate decontamination device according to claim 1, characterized in that: Also includes: A ventilation and exhaust system disposed outside the glove box (7) and communicating with the interior of the glove box (7); The ventilation and exhaust system comprises a pipeline (91), and the pipeline (91) is connected to the glove box (7); An air pump (92) is fixedly connected to the pipeline (91).

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