Radioactive substance transportation shielding box

Abstract

The invention discloses a radioactive substance transportation shielding box, and relates to the technical field of radioactive waste disposal, the shielding box comprises a shielding box main body and a box door, and the box door is movably connected with the shielding box main body; a sealing gasket is arranged at the contact position of the box door and the shielding box main body; a shielding layer is sleeved in the shielding box main body and is used for blocking rays radiated outwards by radioactive wastes; a plurality of layers of partition plates are horizontally arranged in the shielding layer, and a liquid collecting tank and an adsorption material are arranged at the bottom in the shielding layer and used for collecting and adsorbing scattered radioactive waste; the shielding box main body and the box door are provided with door locks; the outer top of the shielding box body is provided with the lifting lugs to facilitate vehicle loading and unloading. Universal wheels with brakes are arranged at the bottom of the outer side of the shielding box body, so that overall movement and fixation are facilitated; and the shielding box is provided with a radioactive mark. The shielding box provided by the invention is convenient for placing, loading, unloading and carrying the radioactive sample container, avoids the diffusion of radioactive substances in the road transportation process, and reduces the ray pollution of the radioactive sample to the environment as much as possible.

Description

Technical Field

[0001] The invention belongs to the technical field of radioactive waste treatment, and in particular relates to a radioactive material transport shielding box. Background Art

[0002] Radioactive waste is generated during the operation of nuclear facilities. The "Radioactive Waste Classification" announcement jointly issued by the three ministries and commissions proposed the categories and limits of radioactive waste. The "Safety Regulations for Near Surface Disposal of Low- and Intermediate-Level Radioactive Solid Waste" (GB9132-2018) pointed out that the activity concentration of radioactive solid waste disposed near the surface should comply with the provisions of the "Radioactive Waste Classification". Therefore, it is necessary to measure and analyze the activity concentration of nuclides before disposing of radioactive waste. Sample containers of different specifications will be used for sampling and nuclide measurement and analysis of different types of radioactive waste, and the radioactive samples will be transported to qualified laboratories for difficult-to-measure nuclide analysis and quality assurance sample analysis. Containers of different specifications containing radioactive samples need to be properly placed during transportation. Summary of the invention

[0003] In view of the defects existing in the prior art, the purpose of the present invention is to provide a shielding box for transporting radioactive materials. The shielding box is used to facilitate the placement of containers containing radioactive samples, facilitate loading and unloading, avoid the spread of radioactive materials during road transportation, and minimize the radiation pollution of radioactive samples to the environment.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A radioactive material transport shielding box, comprising a shielding box body and a box door, wherein the box door is movably connected to the shielding box body; a circle of sealing gaskets is arranged at the position where the box door contacts the shielding box body, for improving the overall sealing of the shielding box; a shielding layer is sleeved inside the shielding box body, for blocking the radiation radiated outward by radioactive waste; multiple layers of partitions are arranged horizontally inside the shielding layer, for placing radioactive waste containers; a liquid collecting tank and an adsorbent material are arranged at the bottom of the shielding layer, for collecting and adsorbing spilled radioactive waste respectively;

[0006] The shielding box body and the box door are equipped with door locks to prevent unauthorized personnel from opening the box door and causing sample loss; the top outer side of the shielding box body is provided with a lifting lug to facilitate vehicle loading and unloading; the bottom outer side of the shielding box body is equipped with a universal wheel with a brake to facilitate overall movement and fixation; the shielding box is equipped with a radioactive mark to prevent unauthorized personnel from close contact and causing unnecessary exposure.

[0007] Furthermore, in the radioactive material transport shielding box as described above, the shielding box body is made of stainless steel, carbon steel or other alloy materials.

[0008] Furthermore, in the radioactive material transport shielding box as described above, the box door is movably connected to the shielding box body through a lotus leaf or a hinge.

[0009] Furthermore, in the radioactive material transport shielding box as described above, the sealing gasket is made of rubber or polytetrafluoroethylene.

[0010] Furthermore, in the radioactive material transport shielding box as described above, the radioactive shielding material used in the shielding layer is a metal or non-metal material with a shielding effect, and the shielding material is iron, lead, tungsten or cement.

[0011] Furthermore, in the radioactive material transport shielding box as described above, the adsorption material is a molded molecular sieve or resin.

[0012] Furthermore, in the above-mentioned radioactive material transport shielding box, the position of the partition is adjusted according to the size of the sample container, and the partition spacing is adjusted by using a snap plate or a slider and a locking screw.

[0013] Furthermore, in the radioactive material transport shielding box as described above, the door lock is a password lock or a padlock.

[0014] Furthermore, in the radioactive material transport shielding box as described above, a lifting ear is provided at each of the four corners of the top outer side of the shielding box body, and is welded to the shielding box body; the universal wheel is fixed to the bottom outer side of the shielding box body by threaded connection or welding.

[0015] Furthermore, in the above-mentioned radioactive material transport shielding box, the radioactive label is set on the shielding box by spraying, pasting or laser engraving.

[0016] Compared with the prior art, the radioactive material transport shielding box provided by the present invention has the following beneficial effects:

[0017] The shielding box is equipped with 2-8 layers of partitions, and the positions of the partitions can be adjusted according to the size of the sample container; a shielding layer is arranged on the radioactive box body, which can reduce the gamma-ray dose rate generated by radioactive waste by 1-6 orders of magnitude; a liquid collecting trough and adsorption material are arranged at the bottom of the shielding layer, and a sealing gasket is designed on the contact surface between the box door and the box body to prevent the spread of radioactive materials after the sample leaks; the bottom of the box body is equipped with universal wheels with brakes for easy movement and fixation; the top of the box body is provided with lifting ears for easy vehicle loading and unloading; it is equipped with a door lock to prevent irrelevant personnel from opening the door and losing the sample; it is equipped with a radioactive label to prevent irrelevant personnel from close contact and causing unnecessary exposure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of a radioactive material transport shielding box provided in an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A side view of the shielding box;

[0020] In the figure: 1-shielding box body; 2-box door; 3-sealing gasket; 4-shielding layer; 5-partition; 6-door lock; 7-lifting ear; 8-universal wheel. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1-Figure 2 A schematic structural diagram of a radioactive material transport shielding box provided in an embodiment of the present invention is shown, the shielding box comprising a shielding box main body 1 and a box door 2, the box door 2 and the shielding box main body 1 are movably connected; a circle of sealing gaskets 3 are arranged at the position where the box door 2 contacts the shielding box main body 1, for improving the overall sealing of the shielding box and avoiding the diffusion of radioactive materials after the sample leaks; a shielding layer 4 is sleeved inside the shielding box main body 1, for blocking the rays radiated outward by the radioactive waste, and can reduce the gamma ray dose rate generated by the radioactive waste by 1-6 orders of magnitude; a multi-layer partition 5 is horizontally arranged inside the shielding layer 4, for placing radioactive waste containers; a liquid collecting tank and adsorption material are arranged at the bottom of the shielding layer 4, for collecting and adsorbing spilled radioactive waste.

[0023] In addition, the shielding box body 1 and the box door 2 are equipped with door locks 6 to prevent unauthorized personnel from opening the box door and causing loss of samples; a lifting lug 7 is provided on the top outer side of the shielding box body 1 to facilitate vehicle loading and unloading; the bottom outer side of the shielding box body 1 is equipped with a universal wheel 8 with a brake to facilitate overall movement and fixation; the shielding box is equipped with a radioactive mark to prevent unauthorized personnel from close contact and causing unnecessary exposure.

[0024] In a specific embodiment, the shielding box body 1 is made of stainless steel, carbon steel or other alloy materials.

[0025] In a specific embodiment, the box door 2 and the shielding box body 1 are connected in a lotus leaf, hinge or other safe and sealed manner.

[0026] In a specific embodiment, the sealing gasket 3 is made of rubber, polytetrafluoroethylene or other materials with good sealing properties, which can improve the overall sealing properties of the shielding box and prevent the internal radioactive substances from diffusing outwards during transportation.

[0027] In a specific embodiment, the radiation shielding material used in the shielding layer 4 is various metal or non-metal materials with shielding effects, such as iron, lead, tungsten, cement, etc.

[0028] In a specific embodiment, the adsorption material at the bottom of the shielding layer 4 is various non-dispersible substances such as molded molecular sieves and resins.

[0029] In a specific embodiment, 2-8 layers of partitions 5 are arranged in the shielding box body 1, and the position of the partitions 5 can be adjusted according to the size of the sample container, so as to facilitate the simultaneous placement of radioactive wastes of various specifications. The partitions 5 can be freely taken out or put in, and the partition spacing can be adjusted by means of snap plates or sliders with locking screws.

[0030] In a specific embodiment, the configured door lock 6 is a password lock or a padlock.

[0031] In a specific embodiment, a lifting ear 7 is provided at each of the four corners of the top of the outer side of the shielding box body, and is connected to the shielding box body by welding.

[0032] In a specific embodiment, the universal wheel 8 is fixed to the outer bottom of the shielding box body 1 by means of thread connection or welding.

[0033] In a specific embodiment, the radioactive label is placed on the shielding box by spraying, pasting or laser engraving.

[0034] Example

[0035] Use the above shielding box to transport the cylindrical sample container with a height of 190 mm to the designated location. The operation process is as follows:

[0036] S1. Shielding box in place: Move the shielding box to the designated location by manual pushing, forklift transfer or hoisting transfer, and lock the four universal wheel brakes;

[0037] S2. Open the shielding box door: The person in charge of this transportation enters the preset password or uses the key to unlock the door, and then opens the shielding box door;

[0038] S3. Adjust the height of the partition: adjust the position of the snap plate or move the slider to adjust the height of the layer where the sample needs to be placed to 200mm;

[0039] S4. Place samples: Move the sample container to the vicinity of the shielding box, and manually place the samples neatly on a layer with adjusted height;

[0040] S5. Lock the door: After placing the sample containers to be transported, close the door and lock it by scrambling the password or using a key;

[0041] S6. Loading and shipment: The shielding box is transferred to the radioactive material transport vehicle by forklift or hoisting, the four universal wheel brakes are locked, and the shielding box is fixed to the designated position in the vehicle with ropes;

[0042] S7. Sample reception: After the samples are transported to the designated location, the person in charge of the transportation will unlock the door and the shielding box door. The sample analysis and testing personnel will confirm the integrity of the sample container and then take out the sample container. After confirming that the sample is correct, it will be stored in the designated location.

[0043] The radioactive material transport shielding box provided by the present invention has 2-8 layers of partitions arranged inside the box, and the positions of the partitions can be adjusted according to the size of the sample container; the radioactive box body is provided with a shielding layer, which can reduce the gamma ray dose rate generated by radioactive waste by 1-6 orders of magnitude; a liquid collecting trough and adsorption material are arranged at the bottom of the shielding layer, and a sealing gasket is designed on the contact surface between the box door and the box body to avoid the diffusion of radioactive materials after the sample leaks; the bottom of the box body is equipped with universal wheels with brakes for easy movement and fixation; the top of the box body is provided with lifting ears for easy vehicle loading and unloading; the door is equipped with a door lock to prevent irrelevant personnel from opening the door and losing the sample; and the radioactive mark is provided to prevent irrelevant personnel from close contact and causing unnecessary exposure.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A radioactive material transport shielding box, characterized in that: The shielding box comprises a shielding box body (1) and a box door (2), wherein the box door (2) is movably connected to the shielding box body (1); a circle of sealing gaskets (3) are arranged at the position where the box door (2) contacts the shielding box body (1), so as to improve the sealing performance of the shielding box as a whole; a shielding layer (4) is arranged inside the shielding box body (1), so as to block the radiation radiated outward by the radioactive waste; a plurality of partitions (5) are arranged horizontally inside the shielding layer (4), so as to place a container for containing radioactive waste; a liquid collecting tank and an adsorbent material are arranged at the bottom of the shielding layer (4), so as to collect and adsorb the spilled radioactive waste respectively; The shielding box body (1) and the box door (2) are provided with door locks (6); the top of the outer side of the shielding box body (1) is provided with a lifting lug (7) to facilitate vehicle loading and unloading; the bottom of the outer side of the shielding box body (1) is provided with a universal wheel (8) with a brake to facilitate overall movement and fixation; the shielding box is provided with a radioactive mark to prevent unnecessary exposure caused by close contact of irrelevant personnel.

2. The radioactive material transport shielding box according to claim 1, characterized in that: The shielding box body (1) is made of stainless steel, carbon steel or other alloy materials.

3. The radioactive material transport shielding box according to claim 2, characterized in that: The box door (2) is movably connected to the shielding box body (1) via a lotus leaf or a hinge.

4. The radioactive material transport shielding box according to claim 3, characterized in that: The sealing gasket (3) is made of rubber or polytetrafluoroethylene.

5. The radioactive material transport shielding box according to claim 4, characterized in that: The radioactive shielding material used in the shielding layer (4) is a metal or non-metal material with a shielding effect, and the shielding material is iron, lead, tungsten or cement.

6. The radioactive material transport shielding box according to any one of claims 1 to 5, characterized in that: The adsorption material is a formed molecular sieve or resin.

7. The radioactive material transport shielding box according to claim 6, characterized in that: The position of the partition (5) is adjusted according to the size of the sample container, and the partition spacing is adjusted by means of a snap plate or a slider and a locking screw.

8. The radioactive material transport shielding box according to claim 7, characterized in that: The door lock (6) is a password lock or a padlock.

9. The radioactive material transport shielding box according to claim 8, characterized in that: A lifting ear (7) is provided at each of the four corners of the top of the outer side of the shielding box body, and is welded to the shielding box body (1); the universal wheel (8) is fixed to the outer bottom of the shielding box body (1) by threaded connection or welding.

10. The radioactive material transport shielding box according to any one of claims 7 to 9, characterized in that: The radioactive mark is set on the shielding box by spraying, pasting or laser engraving.

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