A container for low and intermediate level radioactive waste
Patent Information
- Application Number
- CN202522367637.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-07
AI Technical Summary
外圆、内圆混凝土高整体容器的优点是：内部与圆形钢桶匹配，后期灌浆填充物小；其缺点是：浇筑后内部圆形模具拆除困难；外部为圆形，夹具不易固定，搬运和吊装困难；倾倒时容易滚动，容易产生二次伤害；在运输过程中需要配置专用约束框架，以避免在运输过程中混凝土高整体容器倾倒、掉落
[0021]本申请提供的中低水平放射性废物用容器，通过将罐体的外壁设计为非回转体形状，当罐体倾倒时，不会轻易发生滚动，不产生二次伤害；同时通过第一弧形豁口和第二弧形豁口可形成灌浆口，罐盖与放置槽之间的间隙能够实现灌浆，从而加强罐盖与罐体之间的连接强度并保证罐盖与罐体具有优良的密封性；特别地，灌浆口内灌浆后将形成柱状混凝土柱，这将能够进一步增强罐盖与罐体之间的连接强度。
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Figure CN224841290U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of nuclear waste treatment technology, specifically to a container for low- to medium-level radioactive waste. Background Technology
[0002] Large quantities of low- and intermediate-level radioactive waste are generated during nuclear industry activities, radioactive medical and scientific research, oil and gas extraction, and metallurgical and rare earth smelting processes. These low- and intermediate-level radioactive wastes typically require incineration, compression, or solidification methods for disposal, and are typically disposed of near the surface or through geological processes.
[0003] After solidification, low- and intermediate-level radioactive waste needs to be stored in steel drums, steel boxes, or concrete containers for centralized disposal. Concrete containers have a lifespan of up to 300 years and offer advantages such as high strength, long service life, corrosion resistance, high safety, and cost-effectiveness.
[0004] High-concrete integrated containers (HCICs) often use either an outer circular and inner circular concrete structure, or an outer square and inner square concrete structure. The outer square and inner square concrete structure is suitable for holding large waste bags. For small waste bags, they are usually first wrapped in 200L or 400L steel drums and then placed in the circular concrete structure for disposal. The advantages of outer and inner circular concrete structures are: the internal structure matches the circular steel drum, allowing for less grout filling later; the disadvantages are: difficulty in removing the internal circular mold after pouring; the circular exterior makes it difficult to secure with clamps, hindering handling and hoisting; the containers are prone to rolling during tipping, increasing the risk of secondary injuries; and a special restraint frame is required during transportation to prevent the concrete structure from tipping over or falling. Utility Model Content
[0005] This application aims to address at least one of the technical problems in the background art by providing a container for low- to medium-level radioactive waste.
[0006] This application is achieved through the following technical solution:
[0007] A container for low- to medium-level radioactive waste, comprising:
[0008] The tank body has an outer wall that is non-rotational and an interior that is a circular placement groove. A first protrusion is formed on the wall of the placement groove, and the placement groove has a first arc-shaped notch along the axial direction of the groove opening.
[0009] The can lid is adapted to the shape of the groove of the placement groove and is located on the first protrusion. The side wall of the can lid is provided with a second arc-shaped notch. The can lid is also provided with a grouting channel that can connect the second arc-shaped notch with the inside of the placement groove. There is a gap between the can lid and the groove wall of the placement groove.
[0010] The container for low- and medium-level radioactive waste provided in this application is designed with a non-rotating outer wall, which prevents the container from easily rolling when tilted, thus avoiding secondary damage. Simultaneously, a grouting port can be formed through the first and second arc-shaped notches, allowing grouting to be performed between the container cover and the placement slot, thereby strengthening the connection between the cover and the container and ensuring excellent sealing. In particular, grouting inside the grouting port will form a columnar concrete column, further enhancing the connection between the cover and the container.
[0011] In some alternative embodiments, the outer wall of the tank is square in shape.
[0012] In some optional embodiments, the tank is divided into a first segment and a second segment along the axial direction, and a fixing buckle is connected to the second segment. From the axial perspective of the tank, the projected area of the first segment is larger than the projected area of the second segment, and the projection of the fixing buckle is located within the projected area of the first segment.
[0013] In some alternative embodiments, the fastener is attached to a corner position on the second segment.
[0014] In some alternative embodiments, the fixing buckle includes a pre-embedded pipe and an exposed buckle, the exposed buckle being threadedly connected to the pre-embedded pipe.
[0015] In some optional embodiments, the junction between the bottom and the wall of the placement groove is rounded.
[0016] In some alternative embodiments, the tank is also connected to lifting spikes for accommodating a crane.
[0017] In some alternative embodiments, the tank body has a spherical groove, and the hanging nail is located in the spherical groove.
[0018] In some alternative embodiments, the lifting pin is welded to the structural reinforcement inside the tank.
[0019] In some alternative embodiments, a second protrusion is formed on the inner wall of the placement slot to fit the cap of the nuclear waste steel drum.
[0020] Compared with the prior art, this application has the following advantages and beneficial effects:
[0021] The container for low- and medium-level radioactive waste provided in this application is designed with a non-rotating outer wall, which prevents the container from easily rolling when tilted, thus avoiding secondary damage. Simultaneously, a grouting port can be formed through the first and second arc-shaped notches, allowing grouting to be performed between the container cover and the placement slot, thereby strengthening the connection between the cover and the container and ensuring excellent sealing. In particular, grouting inside the grouting port will form a columnar concrete column, further enhancing the connection between the cover and the container. Attached Figure Description
[0022] The accompanying drawings, which are included to provide a further understanding of the embodiments of this application and form part of this application, do not constitute a limitation on the embodiments of this application. In the drawings:
[0023] Figure 1 This is a schematic diagram of the structure of a container for low- and medium-level radioactive waste provided in an embodiment of this application;
[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of a container for low- and medium-level radioactive waste provided in an embodiment of this application.
[0025] Figure 3 This is a schematic diagram of the fixing buckle structure provided in an embodiment of this application;
[0026] Figure 4 This is a schematic diagram of the exposed buckle structure provided in an embodiment of this application;
[0027] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the grouting port provided in an embodiment of this application.
[0028] The attached diagram shows the markings and corresponding component names:
[0029] 1-Tank body, 11-First section, 12-Second section, 13-Placement groove, 14-First boss, 15-First arc-shaped notch, 16-Second boss, 2-Tank cover, 21-Second arc-shaped notch, 22-Grouting channel, 3-Fixing buckle, 31-Embedded pipe, 32-Exposed buckle, 321-Ring, 322-Screw. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this application are only for explaining this application and are not intended to limit this application.
[0031] like Figures 1-5 As shown, this application provides a container for low-to-medium level radioactive waste, which includes a container body 1 and a container lid 2.
[0032] The tank body 1 is cast from C60 grade concrete. The outer wall of the tank body 1 is a non-circular shape, meaning that from the perspective of the length direction of the tank body 1, the outline of the tank body 1 is not circular. For example, it can be a triangle, square, rectangle, pentagon, or other polygonal shape. For ease of placement, storage, and manufacturing, the outer wall of the tank body 1 is square. This square can be a square or a rectangle, preferably designed as a square. Therefore, the overall shape of the tank body 1 is a cuboid. The interior of the tank body 1 has a circular placement slot 13, which is opened from one end face along the length direction of the tank body 1. The groove is formed, and the diameter of the placement groove 13 is 50mm larger than that of a typical outer and inner circle container. The wall thickness of the tank body 1 is designed to be 100~200mm. A first boss 14 is constructed on the groove wall of the placement groove 13, which means that the spatial shape of the placement groove 13 is a multi-diameter cylinder. The placement groove 13 has a first arc-shaped notch 15 opened from the groove opening along the axial direction of the placement groove 13, which means that the placement groove 13 has an arc-shaped groove opened from the groove wall. The arc-shaped groove penetrates the end face of the groove opening of the placement groove 13 on the tank body 1 along the length direction of the tank body 1. The number of first arc-shaped notches 15 can be one or more.
[0033] The shape of the can lid 2 is adapted to the groove of the placement slot 13, meaning the can lid 2 is disc-shaped. The can lid 2 is located on the first boss 14, meaning the first boss 14 provides support for the can lid 2. A second arc-shaped notch 21 is provided on the side wall of the can lid 2. The length direction of the second arc-shaped notch 21 is parallel to the axial direction of the can lid 2. The second arc-shaped notch 21 penetrates at least one axial end face of the can lid 2 along its length direction. By aligning the positions of the first arc-shaped notch 15 and the second arc-shaped notch 21, a grouting port can be formed. The sizes of the first arc-shaped notch 15 and the second arc-shaped notch 21 can be the same or different, as long as it allows the grouting equipment to inject grout. The number of arc-shaped notches 21 corresponds to the sum of the number of first arc-shaped notches 15, meaning that the number of second arc-shaped notches 21 can be one or more. The can lid 2 is also provided with a grouting channel 22 that can connect the second arc-shaped notches 21 with the interior of the placement groove 13. The grouting channel 22 is a circular channel with a diameter of 15mm. There is a gap between the can lid 2 and the groove wall of the placement groove 13. In actual implementation, the width of the gap is 5mm and the shape of the gap is annular. When there are multiple first arc-shaped notches 15, two adjacent grouting ports will be connected by the gap, meaning that during the grouting process, the mortar will be able to fill the gap.
[0034] The container for low-to-medium level radioactive waste provided in this application embodiment, by designing the outer wall of the container 1 as a non-rotating shape, will not easily roll when the container 1 is tilted, thus preventing secondary damage. Simultaneously, a grouting port can be formed through the first arc-shaped notch 15 and the second arc-shaped notch 21. In actual implementation, there are three of each type, evenly distributed along the circumference of the placement groove 13. The cross-sectional size of the grouting hole is not less than a circular area with a diameter of 20 mm. The gap between the container cover 2 and the placement groove 13 allows for grouting, thereby strengthening the connection between the container cover 2 and the container 1 and ensuring excellent sealing between them. In particular, after grouting, a columnar concrete column will be formed in the grouting port, which will further enhance the connection strength between the container cover 2 and the container 1.
[0035] In some optional embodiments, the tank body 1 is divided into a first segment 11 and a second segment 12 along the axial direction. A fixing buckle 3 is connected to the second segment 12. From the axial perspective of the tank body 1, the projected area of the first segment 11 is larger than the projected area of the second segment 12. This means that the tank body 1 as a whole can be regarded as being composed of two square columns, one of which has a larger cross-sectional profile than the other. The junction of the first segment 11 and the second segment 12 is a rounded corner structure to prevent stress concentration, which can help improve the demolding effect when casting the tank body 1. The projection of the fixing buckle 3 is located within the projection area of the first segment 11.
[0036] In this embodiment, the fixing buckle 3 facilitates the fixing of the tank 1. For example, during the transportation of the container, the fixing buckle 3 can be used in conjunction with a rope and the rope can be tied to the fixed structure to fix the tank 1. Furthermore, the projection of the fixing buckle 3 is located within the projection area of the first segment 11, which can prevent the fixing buckle 3 from being damaged when the tank 1 is tilted.
[0037] In some alternative embodiments, the fixing buckle 3 is connected to the corner position on the second segment 12, and the corner position is more conducive to fixing the rope, thereby improving the stability of the tank 1 after it is tied.
[0038] In some optional embodiments, the fixing buckle 3 includes a pre-embedded pipe 31 and an exposed buckle 32. The exposed buckle 32 is threadedly connected to the pre-embedded pipe 31. The exposed buckle 32 is composed of a ring 321 and a screw 322. The screw 322 of the exposed buckle 32 is inserted into the pre-embedded pipe 31 and threadedly engages with the pre-embedded pipe 31. The pre-embedded pipe 31 is pre-embedded in the tank 1 during the casting process to ensure the stability of the pre-embedded pipe 31. The length of the pre-embedded pipe 31 is 60mm. The threaded connection between the exposed buckle 32 and the pre-embedded pipe 31 facilitates subsequent maintenance and replacement work. At the same time, it also allows for the replacement of exposed buckles 32 of different sizes, enabling it to adapt to large-diameter ropes.
[0039] In some optional embodiments, the junction between the bottom and the wall of the placement groove 13 is rounded; this design is beneficial for the demolding effect when casting the tank body 1.
[0040] In some optional embodiments, the tank body 1 is also connected to lifting spikes for use with cranes. The lifting spikes are made of stainless steel to facilitate the lifting of the tank body 1.
[0041] In some optional embodiments, a spherical groove is provided on the tank body 1, and the hanging nail is located in the spherical groove. The hanging nail has a distance of 2~3mm from the axial end face of the tank body 1. With this design, the hanging nail can be hidden below the end face of the tank body 1, which plays a protective role for the hanging nail.
[0042] In some alternative embodiments, the lifting pins are welded to the structural reinforcement bars inside the tank body 1; this design ensures the connection strength between the lifting pins and the tank body 1.
[0043] In some alternative embodiments, a second protrusion 16 is formed on the inner wall of the placement slot 13 to fit the cap of the nuclear waste steel drum.
[0044] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details are included in the above description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0045] It should be noted that in this specification, similar reference numerals and letters in the above figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0046] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A container for low- to medium-level radioactive waste, characterized in that, include: The tank (1) has an outer wall that is non-rotational and an inner circular placement groove (13). A first boss (14) is constructed on the groove wall of the placement groove (13). The placement groove (13) has a first arc-shaped notch (15) opened from the groove opening along the axial direction of the placement groove (13). The can lid (2) is adapted to the shape of the groove of the placement groove (13) and is located on the first boss (14). The side wall of the can lid (2) is provided with a second arc-shaped notch (21). The can lid (2) is also provided with a grouting channel (22) that can connect the second arc-shaped notch (21) with the inside of the placement groove (13). There is a gap between the can lid (2) and the groove wall of the placement groove (13).
2. The container for low- and medium-level radioactive waste according to claim 1, characterized in that, The outer wall of the tank (1) is square in shape.
3. The container for low- and medium-level radioactive waste according to claim 2, characterized in that, The tank (1) is divided into a first section (11) and a second section (12) along the axial direction. A fixing buckle (3) is connected to the second section (12). From the axial perspective of the tank (1), the projected area of the first section (11) is greater than the projected area of the second section (12), and the projection of the fixing buckle (3) is located within the projection area of the first section (11).
4. The container for low- and intermediate-level radioactive waste according to claim 3, characterized in that, The fixing buckle (3) is connected to the corner position on the second segment (12).
5. The container for low- and intermediate-level radioactive waste according to claim 3, characterized in that, The fixing buckle (3) includes a pre-embedded pipe (31) and an exposed buckle (32), and the exposed buckle (32) is threadedly connected to the pre-embedded pipe (31).
6. The container for low- and intermediate-level radioactive waste according to claim 1, characterized in that, The junction between the bottom and the wall of the placement groove (13) is rounded.
7. The container for low- and intermediate-level radioactive waste according to claim 1, characterized in that, The tank (1) is also connected to a lifting nail for adapting to a crane.
8. The container for low- and intermediate-level radioactive waste according to claim 7, characterized in that, The tank body (1) has a spherical groove, and the hanging nail is located in the spherical groove.
9. The container for low- and intermediate-level radioactive waste according to claim 7, characterized in that, The lifting nail is welded to the structural reinforcement inside the tank body (1).
10. The container for low- and intermediate-level radioactive waste according to claim 1, characterized in that, The inner wall of the placement slot (13) is provided with a second protrusion (16) to fit the cap of the nuclear waste steel drum.