Spent fuel storage container disassembly equipment

Abstract

The utility model discloses spent fuel storage container disintegration equipment which comprises a cutting device, a conveying device and a lifting device, the cutting device comprises a cutting workbench and a cutter, the cutter is installed on the cutting workbench, the conveying device is installed below the cutting workbench, and the lifting device is installed below the cutting workbench. The lifting device is installed below the conveying device and connected with the bottom of the conveying device, the lifting device is installed below the cutter in the vertical direction, a stainless steel storage container can be effectively cut, complex structures such as steel pipes and rib plates in the container can be flexibly handled, efficient and accurate automatic disintegration is achieved, and the production efficiency is improved. The disassembly efficiency of the spent fuel storage container is remarkably improved, the working intensity and health risk of operators are reduced, meanwhile, waste generation is reduced, and overall optimization and upgrading of the spent fuel treatment process are promoted.

Description

Technical Field

[0001] This utility model relates to the field of dismantling equipment technology, and in particular to a dismantling equipment for a spent fuel storage container. Background Technology

[0002] In spent fuel reprocessing, the safe and efficient dismantling of spent fuel transport and storage containers is crucial for ensuring smooth transfer and subsequent processing of spent fuel. Traditionally, the dismantling of these large stainless steel storage containers (approximately 2770 mm long and over 700 mm in diameter) has relied primarily on manual labor. This is not only time-consuming and labor-intensive but also increases the health risks to operators due to the higher radiation dose at the bottom of the containers. Furthermore, errors and uncertainties introduced during manual cutting also affect dismantling efficiency and the overall safety of the process.

[0003] Currently, disassembling stainless steel storage containers faces multiple challenges. On the one hand, the containers are large and complex in structure, containing stainless steel tubes and ribs for internal partitions. These complex structures make it difficult to effectively apply conventional cutting methods such as laser cutting, plasma cutting, waterjet cutting, and high-speed wire cutting. These cutting methods not only may generate large amounts of smoke or wastewater, increasing the difficulty of waste disposal, but also are difficult to adapt to the automated cutting requirements of the complex internal structure of the containers.

[0004] On the other hand, with the continuous development of the nuclear energy industry, the amount of spent fuel being processed is increasing year by year, which places higher demands on the efficiency and automation level of storage container dismantling. In order to shorten working time, improve cutting efficiency, reduce the radiation dose level of operators, and reduce secondary waste generated during the cutting process, it is urgent to develop a special equipment suitable for the unloading hall environment that can automatically dismantle storage containers.

[0005] Therefore, this utility model proposes a spent fuel storage container dismantling device to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to solve the above-mentioned technical problems and provide a spent fuel storage container dismantling device. This invention can effectively cut stainless steel storage containers and can flexibly handle complex internal structures such as steel pipes and stiffeners, achieving efficient and precise automated dismantling. It significantly improves the dismantling efficiency of spent fuel storage containers, reduces the workload and health risks of operators, reduces waste generation, and promotes the overall optimization and upgrading of the spent fuel processing process.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a spent fuel storage container dismantling device, including a cutting device, a conveying device and a lifting device. The cutting device includes a cutting workbench and a cutter. The cutter is installed on the cutting workbench. The conveying device is installed below the cutting workbench. The lifting device is installed below the conveying device and connected to the bottom of the conveying device. The lifting device is installed at a position below the cutter in the vertical direction.

[0008] Preferably, the cutter includes a fixed base and a cutting saw, with both ends of the cutting saw mounted on the fixed base to cut the storage container, and the fixed base mounted on the upper surface of the cutting workbench.

[0009] Preferably, the cutter further includes an arc-shaped cutting groove, on which a cutting saw is mounted, and the diameter of the arc-shaped cutting groove is larger than the diameter of the storage container.

[0010] Preferably, the cutting worktable has a cutting opening, which is located above the lifting device, and the fixed base is installed on the cutting opening.

[0011] Preferably, the conveying device includes an inlet conveyor, an intermediate conveyor, and an outlet conveyor. The intermediate conveyor is located between the inlet conveyor and the outlet conveyor. The inlet conveyor, the intermediate conveyor, and the outlet conveyor are connected end to end in sequence. The intermediate conveyor is installed directly below the cutting opening, and the lifting device is installed below the intermediate conveyor.

[0012] Preferably, the lifting device includes a scissor lift and a lifting platform, with the scissor lift connected to the bottom of the lifting platform and an intermediate conveyor installed on the lifting platform.

[0013] Preferably, the infeed conveyor includes an infeed conveyor belt and an infeed support, wherein the infeed conveyor belt is mounted on the infeed support and the infeed support is fixed to the ground;

[0014] The intermediate conveyor includes an intermediate conveyor belt and an intermediate support frame. The intermediate conveyor belt is mounted on the intermediate support frame, which is fixed to the ground.

[0015] The discharge conveyor includes a discharge conveyor belt and a discharge support. The discharge conveyor belt is installed on the discharge support, which is fixed to the ground. The inlet conveyor belt, the intermediate conveyor belt, and the outlet conveyor belt are connected end to end in sequence.

[0016] Preferably, the conveying device further includes a waste cylinder, which is placed on the inlet conveyor belt, the intermediate conveyor belt and the outlet conveyor belt.

[0017] The beneficial effects of this utility model are:

[0018] 1. Because the cutting process of this utility model is highly automated, operators can operate and control the equipment away from the radiation source, thereby significantly reducing the radiation dose level received by the operators and ensuring the health and safety of the staff.

[0019] 2. Automated cutting reduces the uncertainty and errors of human operation, lowering the risk of safety accidents caused by improper operation. At the same time, mechanical cutting tools are more stable and reliable, capable of continuous and stable operation in complex environments;

[0020] 3. The cutting tool is not only suitable for stainless steel storage containers, but can also flexibly handle complex internal structures such as steel pipes and reinforcing plates. This versatility allows the equipment to perform well in various cutting scenarios, improving its utilization rate and applicability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the cutting steps of this utility model.

[0023] Figure 3 This is a schematic diagram of the working steps of this utility model.

[0024] In the diagram: 1. Cutting device; 11. Cutting workbench; 12. Cutter; 121. Fixed base; 122. Cutting saw; 123. Arc-shaped cutting groove; 2. Conveying device; 21. Inlet conveyor; 211. Inlet conveyor belt; 212. Inlet support; 22. Intermediate conveyor; 221. Intermediate conveyor belt; 222. Intermediate support; 23. Outlet conveyor; 231. Outlet conveyor belt; 232. Outlet support; 24. Waste cylinder; 3. Lifting device; 31. Scissor lift; 32. Lifting platform. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1-3 As shown, the present invention provides a spent fuel storage container dismantling device, including a cutting device 1, a conveying device 2, and a lifting device 3. The cutting device 1 includes a cutting workbench 11 and a cutter 12. The cutter 12 is installed on the cutting workbench 11. The conveying device 2 is installed below the cutting workbench 11. The lifting device 1 is installed below the conveying device 2 and connected to the bottom of the conveying device 2. The lifting device 1 is installed vertically below the cutter 12.

[0027] By adopting the above technical solution, the equipment integrates three major functional modules: cutting, conveying, and lifting, realizing a fully automated process from storage container conveying to cutting and then to waste disposal. The highly integrated automated design significantly improves the dismantling efficiency of spent fuel storage containers. Due to the high degree of automation in the cutting process, operators can operate and control the equipment in a safe area away from radiation sources, thereby effectively reducing the radiation dose level received by operators and ensuring the health and safety of staff.

[0028] The cutter 12 includes a fixed base 121 and a cutting saw 122. The two ends of the cutting saw 122 are mounted on the fixed base 121 to cut the storage container. The fixed base 121 is mounted on the upper surface of the cutting workbench 11.

[0029] By adopting the above technical solution, the fixed base 121 is firmly installed on the upper surface of the cutting worktable 11, providing a stable working platform for the cutting saw 122. The stable support structure helps to reduce vibration and offset during the cutting process, ensuring cutting accuracy and stability. The two ends of the cutting saw 122 are installed on the fixed base 121, and their positions are relatively fixed and precise, so that the cutting saw can maintain a stable running trajectory during the cutting process, thereby improving the cutting accuracy and consistency.

[0030] The cutter 12 also includes an arc-shaped cutting groove 123, on which the cutting saw 122 is mounted. The diameter of the arc-shaped cutting groove 123 is larger than the diameter of the storage container.

[0031] A cutting opening 111 is provided on the cutting worktable 11. The cutting opening 111 is located above the lifting device 3, and the fixed base 121 is installed on the cutting opening 111.

[0032] By adopting the above technical solution, by setting the cutting opening 111 above the lifting device 3 and installing the fixed base 121 at this position, it can be ensured that when the lifting device lifts the storage container to the predetermined position, the container can be accurately aligned with the cutting saw 122, reducing the time and error of manual adjustment and improving the accuracy and efficiency of cutting.

[0033] The conveying device 2 includes an inlet conveyor 21, an intermediate conveyor 22, and an outlet conveyor 23. The intermediate conveyor 22 is located between the inlet conveyor 21 and the outlet conveyor 23. The inlet conveyor 21, the intermediate conveyor 22, and the outlet conveyor 23 are connected end to end in sequence. The intermediate conveyor 22 is installed directly below the cutting opening 111, and the lifting device 3 is installed below the intermediate conveyor 22.

[0034] By adopting the above technical solution, the sequential connection of the infeed conveyor 21, the intermediate conveyor 22 and the outfeed conveyor 23 ensures seamless connection and continuous operation of the storage container throughout the dismantling process.

[0035] The lifting device 3 includes a scissor lift 31 and a lifting platform 32. The scissor lift 31 is connected to the bottom of the lifting platform 32, and the intermediate conveyor 22 is installed on the lifting platform 32.

[0036] By adopting the above technical solution, the intermediate conveyor 22 is installed directly below the cutting opening 111. This means that when the storage container is conveyed to the intermediate conveyor 22, it is located directly below the cutting saw 122, making the cutting alignment more accurate and reducing the cutting error caused by position deviation.

[0037] The infeed conveyor 21 includes an infeed conveyor belt 211 and an infeed support 212. The infeed conveyor belt 211 is mounted on the infeed support 212, and the infeed support 212 is fixed to the ground.

[0038] The intermediate conveyor 22 includes an intermediate conveyor belt 221 and an intermediate support 222. The intermediate conveyor belt 221 is mounted on the intermediate support 222, and the intermediate support 222 is fixed to the ground.

[0039] The discharge conveyor 23 includes a discharge conveyor belt 231 and a discharge support 232. The discharge conveyor belt 231 is installed on the discharge support 232, and the discharge support 232 is fixed on the ground. The inlet conveyor belt 211, the intermediate conveyor belt 221 and the discharge conveyor belt 231 are connected end to end in sequence.

[0040] By adopting the above technical solution, the inlet conveyor belt 211, the intermediate conveyor belt 221 and the outlet conveyor belt 231 are connected end to end to form a continuous conveying path, which allows the storage container to be transported from one end to the other without interruption, improving the conveying efficiency. The continuous operation of the conveyor belt also reduces waiting time and manual intervention, further improving the overall operation efficiency. Each conveyor is an independent module that can be installed and maintained separately. When a part needs to be repaired or replaced, it can be easily disassembled from the whole system without affecting the normal operation of other parts, thus reducing maintenance costs.

[0041] The conveying device 2 also includes a waste cylinder 24, which is placed on the inlet conveyor belt 211, the intermediate conveyor belt 221 and the outlet conveyor belt 231.

[0042] In a specific implementation of this utility model, the cutting device 1, the conveying device 2, and the lifting device 3 are all in standby mode. The cutting saw 122 is located in the arc-shaped cutting groove 123 and is not performing cutting operations. The conveyor belts of the infeed conveyor 21, the intermediate conveyor 22, and the outfeed conveyor 23 are all stationary, waiting for the storage container to enter. The waste cylinder 24 is placed on the conveyor belt to collect the waste generated during the cutting process. The scissor lift 31 of the lifting device 3 is in the lowest position, and the lifting platform 32 and the intermediate conveyor 22 on it are also in the lowest position.

[0043] Waste cylinder 24 is placed on the inlet conveyor belt 211 of inlet conveyor 21. As the conveyor belt moves, the storage container is transported to the position where it connects with the intermediate conveyor belt 221 of intermediate conveyor 22.

[0044] When the storage container is hoisted by the overhead crane to the top of the intermediate conveyor 22, the storage container is aligned with the cutting opening 111 of the cutting table 11, and the storage container is accurately positioned in the cutter 12. The cutting saw 122 of the cutter 12 starts to work, cutting the storage container along the trajectory of the arc-shaped cutting groove 123. Since the diameter of the arc-shaped cutting groove 123 is larger than the diameter of the storage container, the cutting saw 122 can smoothly perform operations such as ring cutting or opening the container. The waste cylinder 24 is transported to the intermediate conveyor belt 221 of the intermediate conveyor 22. The waste generated during the cutting process falls into the waste cylinder 24 below, realizing the centralized collection of waste.

[0045] After the cut storage containers enter the waste cylinder 24, the next waste cylinder 24 is transported to the intermediate conveyor belt 221 to continue cutting the remaining storage containers. After cutting is completed, the lifting device 3 lowers the lifting platform 32 and the intermediate conveyor 22 back to their original positions. The cut storage containers (or opened container lids) continue to move with the intermediate conveyor belt 221 to the outlet conveyor belt 231 of the outlet conveyor 23. Driven by the outlet conveyor belt 231, the storage containers (or container lids) are transported to the subsequent processing area for further dismantling or processing.

[0046] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dismantling device for spent fuel storage containers, characterized in that: The device includes a cutting device (1), a conveying device (2), and a lifting device (3). The cutting device (1) includes a cutting worktable (11) and a cutter (12). The cutter (12) is installed on the cutting worktable (11). The conveying device (2) is installed below the cutting worktable (11). The lifting device (3) is installed below the conveying device (2) and connected to the bottom of the conveying device (2). The lifting device (3) is installed vertically below the cutter (12).

2. The spent fuel storage container dismantling device according to claim 1, characterized in that: The cutter (12) includes a fixed base (121) and a cutting saw (122). The two ends of the cutting saw (122) are mounted on the fixed base (121) to cut the storage container. The fixed base (121) is mounted on the upper surface of the cutting workbench (11).

3. The spent fuel storage container dismantling device according to claim 2, characterized in that: The cutter (12) also includes an arc-shaped cutting groove (123), and a cutting saw (122) is mounted on the arc-shaped cutting groove (123). The diameter of the arc-shaped cutting groove (123) is larger than the diameter of the storage container.

4. The spent fuel storage container dismantling device according to claim 2, characterized in that: The cutting workbench (11) has a cutting opening (111) which is located above the lifting device (3). The fixed base (121) is installed on the cutting opening (111).

5. The spent fuel storage container dismantling device according to claim 4, characterized in that: The conveying device (2) includes an inlet conveyor (21), an intermediate conveyor (22) and an outlet conveyor (23). The intermediate conveyor (22) is located between the inlet conveyor (21) and the outlet conveyor (23). The inlet conveyor (21), the intermediate conveyor (22) and the outlet conveyor (23) are connected end to end in sequence. The intermediate conveyor (22) is installed directly below the cutting opening (111). The lifting device (3) is installed below the intermediate conveyor (22).

6. The spent fuel storage container dismantling device according to claim 5, characterized in that: The lifting device (3) includes a scissor lift (31) and a lifting platform (32). The scissor lift (31) is connected to the bottom of the lifting platform (32), and an intermediate conveyor (22) is installed on the lifting platform (32).

7. The spent fuel storage container dismantling device according to claim 5, characterized in that: The inlet conveyor (21) includes an inlet conveyor belt (211) and an inlet support (212). The inlet conveyor belt (211) is installed on the inlet support (212), and the inlet support (212) is fixed to the ground. The intermediate conveyor (22) includes an intermediate conveyor belt (221) and an intermediate support (222). The intermediate conveyor belt (221) is installed on the intermediate support (222), and the intermediate support (222) is fixed to the ground. The discharge conveyor (23) includes a discharge conveyor belt (231) and a discharge support (232). The discharge conveyor belt (231) is installed on the discharge support (232), and the discharge support (232) is fixed on the ground. The inlet conveyor belt (211), the intermediate conveyor belt (221) and the outlet conveyor belt (231) are connected end to end in sequence.

8. The spent fuel storage container dismantling device according to claim 1 or 7, characterized in that: The conveying device (2) also includes a waste cylinder (24), which is placed on the inlet conveyor belt (211), the intermediate conveyor belt (221) and the outlet conveyor belt (231).

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