Efficient shielding alpha waste bin
By designing locking and anti-pull mechanisms, the problems of cumbersome packaging and weak positioning ability of α waste bins are solved, achieving efficient and stable packaging results and preventing radiation leakage.
Patent Information
- Application Number
- CN202420752969.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing α waste bins have cumbersome outer casing sealing operations, weak positioning capabilities, and cannot be adjusted, which can easily lead to radiation leakage.
The system employs a locking mechanism and an anti-pull-out mechanism. The outer barrel sealing cap is fixed by a rotating arm and bolts, while the inner barrel is positioned by a limiting groove and a limiting plate. The anti-pull-out mechanism prevents the inner barrel from coming out, ensuring the stability and speed of the sealing process.
It achieves efficient and stable packaging, prevents radiation leakage, improves packaging efficiency and post-packaging stability, and avoids contamination caused by the inner barrel coming loose.
Smart Images
Figure CN222319765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of radioactive waste containers, in particular to an alpha waste barrel with high efficiency shielding. Background Art
[0002] Alpha waste refers to radioactive solid wastes whose radioactivity of alpha emitter nuclides with a half-life greater than 30 years is greater than 4×10^6Bq / kg in a single package (for near-surface disposal facilities, the average alpha specific activity of multiple packages is greater than 4×10^5Bq / kg). Alpha wastes are mainly produced in spent fuel reprocessing plants and facilities or activities that operate plutonium and other transuranic nuclides. They have a long half-life, high toxicity, and high processing and disposal costs. In actual processing, alpha waste containers with radiation shielding capabilities are usually used to load alpha wastes and perform operations such as permanent burial. Alpha waste containers usually consist of an inner barrel and an outer barrel. After the inner barrel is filled and sealed, the outer barrel is packaged. The inner barrel needs to be sealed by welding, and the outer barrel is sealed by bolts. At present, the sealing method is relatively cumbersome. In addition, the existing packaging method lacks positioning capability, and the bolts need to penetrate the sealing cover and the barrel body at the same time. They cannot be adjusted again after installation. If there is a deviation, it is easy to expose the gap and cause radiation leakage. Based on the above problems, an alpha waste barrel with high efficiency shielding is proposed. Utility Model Content
[0003] The utility model aims to provide an alpha waste barrel with high efficiency shielding, so as to solve the problems in the above background technology that the existing outer barrel packaging operation is cumbersome and inefficient, the positioning ability is weak, and the barrel cannot be adjusted after being fixed.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an alpha waste barrel with high efficiency shielding, comprising: an outer barrel, an outer barrel sealing cover is installed on the top of the outer barrel, the outer barrel and the outer barrel sealing cover are fixedly connected by a locking mechanism, wherein the number of the locking mechanisms is several, and they are equidistantly arranged on the circumference of the outer wall of the outer barrel.
[0005] The locking mechanism includes: a fixed block, which is fixedly installed on the outer wall of the outer barrel, a rotating arm is rotatably installed on the outer wall of the fixed block, a positioning groove is opened on the top outer wall of the outer barrel sealing cover, the free end of the rotating arm is slidably embedded in the inner cavity of the positioning groove, an extension seat is installed on the outer wall of the free end of the rotating arm, a bolt passes through the outer wall of the extension seat, a screw hole is opened on the top of the outer wall of the outer barrel sealing cover, and the bottom end of the bolt is screwed into the inner cavity of the screw hole.
[0006] Preferably, a through hole is formed on the outer wall of the rotating arm.
[0007] Preferably, a sealing seat is installed at the bottom end of the outer barrel sealing cover, and the sealing seat is adapted to the inner diameter of the outer barrel, and a rubber ring is sleeved on the outer wall of the sealing seat.
[0008] Preferably, an inner barrel is placed in the inner cavity of the outer barrel, wherein an inner barrel sealing cover is welded and sealed at the top end of the inner barrel.
[0009] Preferably, the inner barrel is positioned with the inner cavity of the outer barrel by a positioning component, and the number of the positioning components is several and they are equidistantly arranged on the circumference of the outer wall of the inner barrel;
[0010] The positioning component includes: a limiting groove and a limiting plate, the limiting groove is installed on the inner wall of the outer barrel, the limiting plate is installed on the outer wall of the inner barrel, and the limiting plate is slidably embedded in the inner cavity of the limiting groove.
[0011] Preferably, a plurality of anti-pull mechanisms are equidistantly installed on the inner wall of the outer barrel, and the anti-pull mechanisms can prevent the inner barrel from falling out upwards.
[0012] Preferably, the anti-pullout mechanism includes: a first rotating rod, the first rotating rod is rotatably mounted on the inner wall of the outer barrel, one end of the second rotating rod is rotatably mounted on the free end of the first rotating rod, a slider is rotatably mounted on the other end of the second rotating rod, a sliding groove is opened on the inner wall of the outer barrel, and the slider is slidably embedded in the inner cavity of the sliding groove, one end of the spring is fixedly mounted on the outer wall of the slider, and the other end of the spring is fixedly mounted on the inner wall of the sliding groove.
[0013] Preferably, a rubber pad is installed on the outer wall of the first rotating rod on the side opposite to the inner barrel.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the highly efficient shielded α waste barrel, by rotating the rotating arm so that its free end is embedded in the inner cavity of the positioning groove, completes the positioning of the outer barrel sealing cover and the outer barrel, and then screws the bolt into the inner cavity of the screw hole to complete the packaging and fixation of the outer barrel sealing cover, and completes the centering positioning of the inner barrel through the cooperation of the limit groove and the limit plate, and through the cooperation of the first rotating rod and the second rotating rod, the inner barrel is subjected to great resistance when moving upward, thereby preventing the inner barrel from falling out upward and ensuring stability. In actual use, the positioning and placement of the inner barrel can be quickly completed and centered to ensure the normal progress of subsequent operations, and at the same time, the inner barrel can be prevented from moving upward, and the inner barrel can be prevented from falling out and contaminating the soil after being permanently filled. The outer barrel sealing cover can also be quickly positioned and fixed, thereby improving the overall efficiency of packaging and avoiding leakage caused by misalignment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the front view of the utility model.
[0016] Figure 2 It is a schematic diagram of the locking mechanism of the utility model in the released state.
[0017] Figure 3 It is a structural schematic diagram of the anti-pullout mechanism of the utility model.
[0018] Figure 4 It is an enlarged view of point A of the present utility model.
[0019] Figure 5 It is a top view of the limiting plate of the utility model.
[0020] In the figure: 1. outer barrel, 2. outer barrel sealing cover, 3. locking mechanism, 31. fixed block, 32. rotating arm, 33. positioning groove, 34. extension seat, 35. bolt, 36. screw hole, 37. through hole, 4. sealing seat, 5. rubber ring, 6. inner barrel, 7. inner barrel sealing cover, 8. anti-pullout mechanism, 81. first rotating rod, 82. second rotating rod, 83. rubber pad, 84. slide groove, 85. slider, 86. spring, 9. limit groove, 10. limit plate. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-5 The utility model provides a technical solution for an alpha waste barrel with high efficiency shielding: an alpha waste barrel with high efficiency shielding, comprising: an outer barrel 1, an outer barrel sealing cover 2 is installed on the top of the outer barrel 1, a sealing seat 4 is installed on the bottom of the outer barrel sealing cover 2, and the sealing seat 4 is adapted to the inner diameter of the outer barrel 1, the outer barrel sealing cover 2 is buckled downward, so that the sealing seat 4 enters the inner cavity of the outer barrel 1 to increase the packaging stability, an outer wall of the sealing seat 4 is sleeved with a rubber ring 5, the rubber ring 5 is fitted with the inner wall of the outer barrel 1 to increase the air tightness, an inner barrel 6 is placed in the inner cavity of the outer barrel 1, the inner barrel 6 is used to fill alpha waste, and the top of the inner barrel 6 is welded and sealed with an inner barrel sealing cover 7, wherein the inner barrel 6 and the inner barrel sealing cover 7 are both made of radiation-proof materials, such as lead plates.
[0023] In the above scheme, the outer barrel 1 and the outer barrel sealing cover 2 are fixedly connected by a locking mechanism 3, wherein the number of the locking mechanisms 3 is several, which are equidistantly arranged on the outer wall circumference of the outer barrel 1, and the locking mechanism 3 includes: a fixed block 31, the fixed block 31 is fixedly installed on the outer wall of the outer barrel 1, and a rotating arm 32 is rotatably installed on the outer wall of the fixed block 31, and a positioning groove 33 is opened on the top outer wall of the outer barrel sealing cover 2, and the free end of the rotating arm 32 is slidably embedded in the inner cavity of the positioning groove 33. When the free end of the rotating arm 32 is embedded in the inner cavity of the positioning groove 33, the positioning between the outer barrel sealing cover 2 and the outer barrel 1 is accurate, and an extension seat 34 is installed on the outer wall of the free end of the rotating arm 32, and a bolt 35 is penetrated through the outer wall of the extension seat 34, and a screw hole 36 is opened on the top of the outer wall of the outer barrel sealing cover 2, and the bottom end of the bolt 35 is screwed to the inner cavity of the screw hole 36. At this time, the extension seat 34 fits the top of the outer barrel sealing cover 2 to achieve the fixation of the outer barrel sealing cover 2.
[0024] A through hole 37 is formed on the outer wall of the rotating arm 32 , and the inner wall of the through hole 37 is adapted to the shape of a finger, so that the worker can pull it easily.
[0025] As a preferred solution, further, the inner barrel 6 is positioned with the inner cavity of the outer barrel 1 by a positioning component. There are several positioning components, which are equidistantly arranged on the outer wall circumference of the inner barrel 6. The positioning components include: a limit groove 9 and a limit plate 10. The limit groove 9 is installed on the inner wall of the outer barrel 1, and the limit plate 10 is installed on the outer wall of the inner barrel 6. The limit plate 10 is slidably embedded in the inner cavity of the limit groove 9. When the inner barrel 6 enters the inner cavity of the outer barrel 1 from top to bottom, the limit plate 10 is ensured to slide into the inner cavity of the limit groove 9, which can ensure that the inner barrel 6 is centered and will not rotate, thereby ensuring that the thickness is equal at all places when the cement is subsequently encapsulated, thereby ensuring the encapsulation quality.
[0026] As a preferred embodiment, further, the inner wall of the outer barrel 1 is equidistantly installed with a plurality of anti-pull mechanisms 8, and the anti-pull mechanism 8 can prevent the inner barrel 6 from slipping out upward. The anti-pull mechanism 8 includes: a first rotating rod 81, the first rotating rod 81 is rotatably installed on the inner wall of the outer barrel 1, and the free end of the first rotating rod 81 is rotatably installed with one end of the second rotating rod 82, the first rotating rod 81 is tilted downward, and the second rotating rod 82 is tilted upward, and the other end of the second rotating rod 82 is rotatably installed with a slider 85, and the inner wall of the outer barrel 1 is provided with a slide groove 84, and the slider 85 is slidably embedded in the inner cavity of the slide groove 84, and the outer wall of the slider 85 is fixedly installed with one end of a spring 86, and the other end of the spring 86 is fixedly installed On the inner wall of the slide groove 84, when the inner barrel 6 is placed downward, the first rotating rod 81 and the second rotating rod 82 are forced to rotate, and the connection between the two moves outward, thereby driving the slider 85 to move downward and compressing the spring 86. When the inner barrel 6 is placed and stationary, the elastic force of the spring 86 is used to drive the slider 85 upward, so that the connection between the first rotating rod 81 and the second rotating rod 82 is always in contact with the outer wall of the inner barrel 6. When the inner barrel 6 moves upward, the second rotating rod 82 will rotate upward under the action of friction and the inner side needs to move inward, but at this time it is blocked by the outer wall of the inner barrel 6, so the second rotating rod 82 cannot rotate upward, thereby ensuring that the upward movement of the inner barrel 6 is blocked and the pull-out resistance is improved.
[0027] A rubber pad 83 is installed on the outer wall of the first rotating rod 81 on the side opposite to the inner barrel 6 to increase the friction force when resisting pulling.
[0028] The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and no longer explains the electrical control.
[0029] When in use, α waste is loaded into the inner cavity of the inner barrel 6, and then the inner barrel sealing cover 7 is placed on the top of the inner barrel 6 and welded to complete the overall packaging of the inner barrel 6, and then the inner barrel 6 is placed in the inner cavity of the outer barrel 1, ensuring that each limiting plate 10 slides and embeds into the inner cavity of the limiting groove 9, so as to ensure the accurate positioning of the inner barrel 6. In this process, under the limiting action of the outer wall of the inner barrel 6, the first rotating rod 81 and the second rotating rod 82 rotate respectively, and the slider 85 moves downward and compresses the spring 86. When the inner barrel 6 is placed, the elastic force of the spring 86 drives the slider 85 upward, so that the connection between the first rotating rod 81 and the second rotating rod 82 fits the outer wall of the inner barrel 6. When the inner barrel 6 moves upward, it has a huge distance resistance to prevent the inner barrel 6 from Move upward, and then fill cement into the gap between the inner barrel 6 and the outer barrel 1, then cover the outer barrel sealing cover 2 downward, so that the sealing seat 4 is embedded in the inner cavity of the outer barrel 1, and then rotate the rotating arm 32 so that its free end is embedded in the inner cavity of the positioning groove 33. At this time, the outer barrel sealing cover 2 is accurately positioned, and the bolt 35 is aligned with the screw hole 36. After rotating the bolt 35 to make it enter the inner cavity of the screw hole 36, the outer barrel 1 and the outer barrel sealing cover 2 are packaged. In actual use, it can not only ensure that the inner barrel 6 is placed in the center of the inner cavity of the outer barrel 1, but also enhance the pull-out resistance of the inner barrel 6, avoid the subsequent landfill due to the overall skewness caused by geological changes, resulting in the inner barrel 6 falling out, but also can quickly realize the sealing of the outer barrel sealing cover 2, thereby improving the equipment assembly efficiency.
[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "center position", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and limited, the terms "snapping", "plugging", "welding", "installation", "setting", "interference fit", "screw connection", "pin connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An efficient shielded alpha waste barrel, characterized in that: include: An outer barrel (1), wherein an outer barrel sealing cover (2) is installed at the top end of the outer barrel (1), and the outer barrel (1) and the outer barrel sealing cover (2) are fixedly connected via a locking mechanism (3), wherein the number of the locking mechanisms (3) is a plurality, and the locking mechanisms (3) are equidistantly arranged on the circumference of the outer wall of the outer barrel (1); The locking mechanism (3) comprises: a fixed block (31), the fixed block (31) is fixedly mounted on the outer wall of the outer barrel (1), a rotating arm (32) is rotatably mounted on the outer wall of the fixed block (31), a positioning groove (33) is provided on the top outer wall of the outer barrel sealing cover (2), the free end of the rotating arm (32) is slidably embedded in the inner cavity of the positioning groove (33), an extension seat (34) is installed on the outer wall of the free end of the rotating arm (32), a bolt (35) penetrates the outer wall of the extension seat (34), a screw hole (36) is provided on the top outer wall of the outer barrel sealing cover (2), and the bottom end of the bolt (35) is screwed into the inner cavity of the screw hole (36).
2. The highly efficient shielded alpha waste barrel according to claim 1, characterized in that: The outer wall of the rotating arm (32) is provided with a through hole (37).
3. A highly efficient shielded alpha waste barrel according to claim 1 or 2, characterized in that: A sealing seat (4) is installed at the bottom end of the outer barrel sealing cover (2), and the sealing seat (4) is adapted to the inner diameter of the outer barrel (1), and a rubber ring (5) is sleeved on the outer wall of the sealing seat (4).
4. The highly efficient shielded alpha waste barrel according to claim 3, characterized in that: An inner barrel (6) is placed in the inner cavity of the outer barrel (1), wherein the top end of the inner barrel (6) is welded and sealed with an inner barrel sealing cover (7).
5. The highly efficient shielded alpha waste barrel according to claim 4, characterized in that: The inner barrel (6) is positioned with the inner cavity of the outer barrel (1) by means of positioning components, and the number of the positioning components is several and they are respectively and equidistantly arranged on the circumference of the outer wall of the inner barrel (6); The positioning component comprises: a limiting groove (9) and a limiting plate (10); the limiting groove (9) is mounted on the inner wall of the outer barrel (1); the limiting plate (10) is mounted on the outer wall of the inner barrel (6); and the limiting plate (10) is slidably embedded in the inner cavity of the limiting groove (9).
6. The highly efficient shielded alpha waste barrel according to claim 4, characterized in that: The inner wall of the outer barrel (1) is provided with a plurality of anti-pullout mechanisms (8) at equal intervals, and the anti-pullout mechanisms (8) can prevent the inner barrel (6) from falling out upwards.
7. The highly efficient shielded alpha waste barrel according to claim 6, characterized in that: The anti-pullout mechanism (8) comprises: a first rotating rod (81), the first rotating rod (81) is rotatably mounted on the inner wall of the outer barrel (1), one end of a second rotating rod (82) is rotatably mounted on the free end of the first rotating rod (81), and a slider (85) is rotatably mounted on the other end of the second rotating rod (82), a sliding groove (84) is provided on the inner wall of the outer barrel (1), and the slider (85) is slidably embedded in the inner cavity of the sliding groove (84), one end of a spring (86) is fixedly mounted on the outer wall of the slider (85), and the other end of the spring (86) is fixedly mounted on the inner wall of the sliding groove (84).
8. The highly efficient shielded alpha waste barrel according to claim 7, characterized in that: A rubber pad (83) is installed on the outer wall of the first rotating rod (81) on the side opposite to the inner barrel (6).