A loading and unloading, sampling and cleaning integrated device

Abstract

The utility model discloses a kind of loading and unloading sampling cleaning integrated device, including main body fixed mechanism, equipment main body movement mechanism, tank elevator mechanism, tank transfer platform mechanism, material rod lifting mechanism, sample cup taking and placing mechanism, furnace end lifting mechanism, furnace end cleaning mechanism and fluidized tube dust extraction mechanism.The utility model adopts whole-process integrated design, four big core functions of loading, unloading, sampling and cleaning are integrated in modular system, seamless link of material flow and information flow is realized, process fragmentation problem of traditional segmented process is eliminated, cross-equipment material transfer link is reduced, through modular integrated design, equipment floor area is small, realize the promotion of space utilization, loading efficiency is improved, density control precision reaches ±1%, unloading time is greatly shortened, residual rate is reduced to 0.1% below, cleaning time is shortened, equipment comprehensive utilization is high, radioactive operation area manual intervention rate is effectively controlled.

Description

Technical Field

[0001] This utility model belongs to the field of nuclear fuel technology in the nuclear industry, and specifically relates to an integrated device for loading, unloading, sampling and cleaning. Background Technology

[0002] With the rapid development of fourth-generation nuclear energy systems, high-temperature gas-cooled reactors (HTGRs) have become a key focus of global nuclear energy technology research and development due to their inherent safety and high efficiency. As the core fuel form of HTGRs, silicon carbide coated pellet fuel (TRISO) effectively encapsulates fission products through multi-layer ceramic coatings. Its preparation and processing technologies directly affect the safe operation and economic efficiency of the reactor. However, existing TRISO fuel processing technologies suffer from significant technical bottlenecks, necessitating the development of an integrated, end-to-end processing device to overcome these technological barriers.

[0003] Currently, TRISO fuel processing primarily employs a segmented process system, including a loading module, an unloading module, an offline sampling system, and a manual cleaning process. In the loading stage, traditional mechanical vibration loading technology suffers from uneven particle distribution and large fluctuations in loading density, with typical loading efficiency below 85% and requiring multiple calibrations. The unloading process relies on a combination of gravity unloading and screw conveyor, with an average unloading time exceeding 45 minutes per batch and a residual unloading rate as high as 0.3-0.5%. The sampling stage requires interrupting the production process, employing manual sampling, with each sampling taking approximately 20 minutes and posing a risk of radioactive contamination. The cleaning process relies on compressed air purging and manual wiping, with an average cleaning cycle of 3 hours and equipment downtime exceeding 25%. Currently, no equipment can effectively solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an integrated loading, unloading, sampling, and cleaning device to solve the aforementioned problems in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an integrated device for loading, unloading, sampling, and cleaning, comprising: Main fixed mechanism; The main moving mechanism of the equipment is slidably mounted on the main fixed mechanism, and the main moving mechanism of the equipment can translate along the main fixed mechanism. The material tank lifting mechanism is set on the main fixed mechanism and is used to lift and move the material tank to a designated position. The material tank is used to store silicon carbide coated particulate fuel. The material tank transfer platform mechanism is set on the main moving mechanism of the equipment. It is used to clamp the material tanks conveyed by the material tank elevator mechanism and transfer them to the designated position for unloading. After unloading, the empty material tank is sent back to the material tank elevator mechanism. The material rod lifting mechanism is installed on the main moving mechanism of the equipment and is used to drive the material rod to move up and down. The sample cup picking and placing mechanism is set on the main body fixing mechanism. It is used to clamp the sample cup to the bottom of the material rod for sampling and to send out the sample cup after sampling. The furnace head lifting mechanism is installed on the main moving mechanism of the equipment. It is used to pick up the furnace head, place it in a designated position for cleaning, and put the cleaned furnace head back on the top of the furnace. The burner head cleaning mechanism, mounted on the main fixing mechanism, is used to clean the carbon black from the burner head; and The fluidized pipe dust extraction mechanism is installed on the main fixed mechanism and is used to remove the dust generated during the loading and unloading process.

[0006] As an optional implementation of the above technical solution, the main moving mechanism of the equipment includes a fixed seat, a movable seat and a first driving mechanism. The fixed seat is installed on the main fixed mechanism, and a two-stage slide rail is provided between the movable seat and the fixed seat. The first driving mechanism is used to drive the movable seat to translate relative to the fixed seat.

[0007] As an optional embodiment of the above technical solution, the material tank lifting mechanism includes a material tank clamping assembly, a lifting guide rail, and a second driving mechanism. The material tank clamping assembly is used to clamp the material tank and is slidably disposed on the lifting guide rail. A drag chain is provided between the material tank clamping assembly and the lifting guide rail. The second driving mechanism is used to drive the material tank clamping assembly to move up and down along the lifting guide rail.

[0008] As an optional embodiment of the above technical solution, the material tank transfer platform mechanism includes a gripper assembly, a rotating platform, a lifting guide rail, a third drive mechanism, and a fourth drive mechanism. The gripper assembly is used to grip the material tank and is slidably mounted on the lifting guide rail. The third drive mechanism is used to drive the gripper assembly to move up and down along the lifting guide rail. The lifting guide rail is mounted on the rotating platform, and the rotating platform is rotatably connected to the main motion mechanism of the equipment. The fourth drive mechanism is used to drive the rotating platform to rotate on the main motion mechanism of the equipment.

[0009] As an optional embodiment of the above technical solution, the material rod lifting mechanism includes a material rod fixing seat, a lifting track and a fifth driving mechanism. The material rod fixing seat is provided with a material rod and is slidably disposed on the lifting track. The fifth driving mechanism is used to drive the material rod fixing seat to move up and down along the lifting track.

[0010] As an optional embodiment of the above technical solution, the sample cup picking and placing mechanism includes a sampling fixed seat, a sampling sliding seat, a sampling rotating seat, a sampling gripper, a sixth driving mechanism, and a seventh driving mechanism. The sampling gripper is disposed on the sampling rotating seat and is used to grip the sample cup. The sixth driving mechanism is used to drive the sampling sliding seat to slide on the sampling fixed seat, and the seventh driving mechanism is used to drive the sampling rotating seat to rotate on the sampling sliding seat.

[0011] As an optional embodiment of the above technical solution, the furnace head lifting mechanism includes a furnace head fixing seat, a lifting guide rail, and an eighth drive mechanism. The furnace head fixing seat is used to fix the furnace head, and the eighth drive mechanism is used to drive the furnace head fixing seat to move up and down along the lifting guide rail.

[0012] As an optional implementation of the above technical solution, the furnace head cleaning mechanism includes an ash collection bucket, a furnace head support platform on the top of the ash collection bucket, a rotating shaft inside the ash collection bucket, a ninth drive mechanism connected to the rotating shaft, and a horizontal brush and a vertical brush on the rotating shaft. The horizontal brush is used to clean the opening of the furnace head, and the vertical brush is used to clean the inside of the furnace head.

[0013] The beneficial effects of this utility model are as follows: This utility model adopts a fully integrated design, integrating the four core functions of loading, unloading, sampling, and cleaning into a modular system. This achieves seamless connection between material flow and information flow, eliminates the process fragmentation problem of traditional segmented processes, reduces material transfer links across equipment, and improves space utilization through modular integrated design. Loading efficiency is improved, density control accuracy reaches ±1%, unloading time is greatly shortened, residual rate is reduced to below 0.1%, cleaning time is shortened, equipment comprehensive utilization rate is high, and manual intervention rate in radioactive operation areas is effectively controlled. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the integrated loading, unloading, sampling and cleaning device according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the main body fixing mechanism in one embodiment of the present utility model; Figure 3 This is a schematic diagram of the main moving mechanism and the furnace head lifting mechanism in one embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the material tank elevator mechanism in one embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the material tank transfer platform mechanism in one embodiment of this utility model; Figure 6This is a schematic diagram of the material rod lifting mechanism in one embodiment of this utility model; Figure 7 This is a schematic diagram of the sample cup taking and placing mechanism in one embodiment of this utility model; Figure 8 This is a schematic diagram of the structure of the furnace head cleaning mechanism in one embodiment of this utility model; Figure 9 This is a schematic diagram of the structure of the fluidized tube dust extraction mechanism in one embodiment of this utility model.

[0015] In the diagram: 1-Main body fixing mechanism; 2-Main body moving mechanism of equipment; 3-Tank elevator mechanism; 4-Tank transfer platform mechanism; 5-Tank lifting mechanism; 6-Sample cup picking and placing mechanism; 7-Furnace head lifting mechanism; 8-Furnace head cleaning mechanism; 9-Fluidized pipe dust extraction mechanism; 21-Fixed base; 22-Moving base; 23-First drive mechanism; 24-Two-stage slide rail; 31-Tank clamping assembly; 32-Lifting guide rail; 33-Second drive mechanism; 41-Gripper assembly; 42-Rotating platform; 43-Lifting guide rail; 44-Third drive mechanism; 45-Fourth drive mechanism; 51-Material rod fixing seat; 52-Lifting track; 53-Fifth drive mechanism; 54-Material rod; 61-Sampling fixed seat; 62-Sampling sliding seat; 63-Sampling rotating seat; 64-Sampling gripper; 65-Sixth drive mechanism; 66-Seventh drive mechanism; 71-Furnace head fixing seat; 72-Lifting guide rail; 73-Eighth drive mechanism; 81-Ash collection bucket; 82-Furnace head support platform; 83-Rotating shaft; 84-Horizontal brush; 85-Vertical brush. Detailed Implementation

[0016] like Figures 1-9 As shown in the figure, this embodiment provides an integrated loading, unloading, sampling and cleaning device, which mainly consists of a main body fixing mechanism 1, a main body moving mechanism 2, a material tank lifting mechanism 3, a material tank transfer platform mechanism 4, a material rod lifting mechanism 5, a sample cup picking and placing mechanism 6, a furnace head lifting mechanism 7, a furnace head cleaning mechanism 8, an aluminum profile frame, a fluidized pipe dust extraction mechanism 9 and an electrical control cabinet.

[0017] The main moving mechanism 2 is slidably mounted on the main fixing mechanism 1, and the main moving mechanism 2 can translate along the main fixing mechanism 1. Figure 3As shown, the main moving mechanism 2 of the equipment includes a fixed base 21, a movable base 22, and a first driving mechanism 23. The fixed base 21 is mounted on the main fixed mechanism 1. A two-stage slide rail 24 is provided between the movable base 22 and the fixed base 21. The first driving mechanism 23 is used to drive the movable base 22 to translate relative to the fixed base 21. The first driving mechanism 23 includes a servo motor, a reducer, a helical gear, and a helical rack. The loading, unloading, sampling, and cleaning actions are completed through the two-stage telescopic movement of the two-stage slide rail 24.

[0018] The material tank lifting mechanism 3 is mounted on the main fixing mechanism 1 and is used to lift and move the material tank to a designated position. The material tank is used to store silicon carbide coated pellet fuel. Figure 4 As shown, the material tank lifting mechanism 3 includes a material tank clamping assembly 31, a lifting guide rail 32, and a second drive mechanism 33. The material tank clamping assembly 31 is used to clamp the material tank and is slidably mounted on the lifting guide rail 32. A drag chain is provided between the material tank clamping assembly 31 and the lifting guide rail 32. The second drive mechanism 33 is used to drive the material tank clamping assembly 31 to move up and down along the lifting guide rail 32. The second drive mechanism 33 includes a servo motor, a reducer, a ball screw, and a screw sleeve. The screw sleeve is mounted on the material tank clamping assembly 31, and the material tank is driven to rise and translate to a designated position through the cooperation of the ball screw and the screw sleeve.

[0019] The material tank transfer platform mechanism 4 is installed on the main moving mechanism 2 of the equipment. It is used to clamp the material tanks conveyed by the material tank lifting mechanism 3 and transfer them to a designated position for unloading. After unloading, the empty material tank is returned to the material tank lifting mechanism 3. Figure 5 As shown, the material tank transfer platform mechanism 4 includes a gripper assembly 41, a rotating platform 42, a lifting guide rail 43, a third drive mechanism 44, and a fourth drive mechanism 45. The gripper assembly 41 is used to grip the material tank and is slidably mounted on the lifting guide rail 43. The third drive mechanism 44 is used to drive the gripper assembly 41 to move up and down along the lifting guide rail 43. The lifting guide rail 43 is mounted on the rotating platform 42, which is rotatably connected to the main motion mechanism 2 of the equipment. The fourth drive mechanism 45 is used to drive the rotating platform 42 to rotate on the main motion mechanism 2 of the equipment. The third drive mechanism 44 includes a servo motor, a reducer, a ball screw, and a screw sleeve. The screw sleeve is mounted on the gripper assembly 41. After the rotating platform 42 grips the material tank of the material tank lifting mechanism 3 and rotates it to a designated position, it unloads the material. After unloading, it rotates back to return the empty material tank to the material tank lifting mechanism 3.

[0020] The material rod lifting mechanism 5 is mounted on the main moving mechanism 2 of the equipment and is used to drive the material rod 54 to move up and down. Figure 6As shown, the material rod lifting mechanism 5 includes a material rod fixing seat 51, a lifting track 52, and a fifth drive mechanism 53. A material rod 54 is mounted on the material rod fixing seat 51, which is slidably disposed on the lifting track 52. The fifth drive mechanism 53 drives the material rod fixing seat 51 to move up and down along the lifting track 52. The fifth drive mechanism 53 includes a servo motor, a reducer, a synchronous belt, and two synchronous pulleys. The synchronous belt causes the material rod fixing seat 51 to slide on the lifting track 52, thus realizing the up-and-down movement of the material rod 54.

[0021] The sample cup picking and placing mechanism 6 is mounted on the main body fixing mechanism 1. It is used to clamp the sample cup below the material rod 54 for sampling and to deliver the sample cup after sampling. Figure 7 As shown, the sample cup handling mechanism 6 includes a sampling fixing seat 61, a sampling sliding seat 62, a sampling rotating seat 63, a sampling gripper 64, a sixth drive mechanism 65, and a seventh drive mechanism 66. The sampling gripper 64 is mounted on the sampling rotating seat 63 and is used to grip the sample cup. The sixth drive mechanism 65 drives the sampling sliding seat 62 to slide on the sampling fixing seat 61, and the seventh drive mechanism 66 drives the sampling rotating seat 63 to rotate on the sampling sliding seat 62. The sixth drive mechanism 65 includes a servo motor, a synchronous belt, and two synchronous pulleys, using the synchronous belt to slide the sampling sliding seat 62 on the sampling fixing seat 61. The seventh drive mechanism 66 includes a servo motor, using the servo motor to drive the sampling rotating seat 63 to rotate on the sampling sliding seat 62, thereby rotating and delivering the sample cup.

[0022] The furnace head lifting mechanism 7 is mounted on the main moving mechanism 2 of the equipment. It is used to clamp the furnace head, place it in a designated position for cleaning, and then return the cleaned furnace head to the top of the furnace. Figure 3 As shown, the furnace head lifting mechanism 7 includes a furnace head fixing seat 71, a lifting guide rail 72, and an eighth drive mechanism 73. The furnace head fixing seat 71 is used to fix the furnace head, and the eighth drive mechanism 73 is used to drive the furnace head fixing seat 71 to move up and down along the lifting guide rail 72. The eighth drive mechanism 73 includes a servo motor and a worm gear screw jack. The furnace head fixing seat 71 is equipped with a photoelectric detection device for detecting the furnace head. The eighth drive mechanism 73 drives the furnace head fixing seat 71 to move up and down, and the furnace head fixing seat 71 can move back and forth with the main body movement mechanism 2 to clamp the furnace head, and then place it above the furnace head cleaning mechanism 8. After the furnace head is cleaned, it is placed back on top of the furnace.

[0023] The furnace head cleaning mechanism 8 is mounted on the main body fixing mechanism 1 and is used to clean the carbon black on the furnace head. For example... Figure 8As shown, the furnace head cleaning mechanism 8 includes an ash collection bin 81. A furnace head support platform 82 is located on the top of the ash collection bin 81. A rotating shaft 83 is located inside the ash collection bin 81. The rotating shaft 83 is connected to a ninth drive mechanism. A transverse brush 84 and a longitudinal brush 85 are mounted on the rotating shaft 83. The transverse brush 84 is used to clean the opening of the furnace head, and the longitudinal brush 85 is used to clean the interior of the furnace head. The ninth drive mechanism includes a servo motor, which is connected to the rotating shaft 83 via a coupling. The rotation of the servo motor drives the transverse brush 84 and the longitudinal brush 85 to clean the carbon black on the furnace head.

[0024] The fluidized tube dust extraction mechanism 9 is installed on the main fixing mechanism 1 and is used to remove dust generated during loading and unloading. The fluidized tube dust extraction mechanism 9 mainly consists of a cylinder and a linear guide rail, and effectively extracts dust when the fluidized tube is lifted by opening and closing the cylinder.

[0025] This equipment is a specialized piece of equipment for coating cleaning and automatic transfer projects, integrating loading, unloading, sampling, and cleaning. The pipeline connection for material feeding is precise, leak-free, and jam-free, ensuring smooth movement. The cleaning process utilizes a fluidized bed dust extraction mechanism, effectively eliminating dust pollution, improving the working environment, and reducing environmental and personnel contamination of materials, thus enhancing cleanliness.

[0026] This utility model adopts a fully integrated design, integrating the four core functions of loading, unloading, sampling, and cleaning into a modular system. This achieves seamless connection between material flow and information flow, eliminates the process fragmentation problem of traditional segmented processes, reduces material transfer links across equipment, and improves space utilization through modular integrated design. Loading efficiency is improved, density control accuracy reaches ±1%, unloading time is greatly shortened, residual rate is reduced to below 0.1%, cleaning time is shortened, equipment comprehensive utilization rate is high, and manual intervention rate in radioactive operation areas is effectively controlled.

[0027] The successful development of this device will significantly reduce the manufacturing cost of TRISO fuel elements and greatly increase annual processing capacity. Through fully automated control, it can reduce human intervention and significantly improve the inherent safety level of nuclear fuel processing. Simultaneously, this technology can be extended to other particle-type nuclear fuel processing fields, providing key equipment support for the large-scale development of advanced nuclear energy systems. This technological solution, through multidisciplinary innovation, breaks through the long-standing efficiency and safety bottlenecks in the field of nuclear fuel processing, which will strongly promote my country's competitiveness in the field of nuclear energy technology and provide a feasible solution for the clean utilization of nuclear energy globally.

[0028] In this description of the utility model, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. They can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model. Furthermore, the specific features and structures described in the embodiments are included in at least one implementation method. Those skilled in the art can combine features from different implementation methods without contradiction. The scope of protection of this utility model is not limited to the specific implementation methods described above. Based on the basic technical concept of this utility model, implementation methods that can be conceived by those skilled in the art without creative effort are all within the scope of protection of this utility model.

Claims

1. An integrated device for loading, unloading, sampling, and cleaning, characterized in that, include: Main fixing mechanism (1); The main moving mechanism (2) of the equipment is slidably set on the main fixed mechanism (1), and the main moving mechanism (2) of the equipment can translate along the main fixed mechanism (1); The material tank lifting mechanism (3) is set on the main body fixing mechanism (1) and is used to lift and move the material tank to a designated position. The material tank is used to store silicon carbide coated particulate fuel. The material tank transfer platform mechanism (4) is set on the main motion mechanism (2) of the equipment. It is used to clamp the material tanks conveyed by the material tank lifting mechanism (3) and transfer them to the designated position for unloading. After unloading, the empty material tanks are sent back to the material tank lifting mechanism (3). The material rod lifting mechanism (5) is installed on the main motion mechanism (2) of the equipment and is used to drive the material rod (54) to lift and lower. The sample cup picking and placing mechanism (6) is set on the main body fixing mechanism (1) and is used to pick up the sample cup to the bottom of the material rod (54) for sampling and to send out the sample cup after sampling. The furnace head lifting mechanism (7) is set on the main body movement mechanism (2) of the equipment. It is used to pick up the furnace head and place it in a designated position for cleaning, and put the cleaned furnace head back on the top of the furnace. The furnace head cleaning mechanism (8) is set on the main body fixing mechanism (1) and is used to clean the carbon black on the furnace head; as well as The fluidized pipe dust extraction mechanism (9) is installed on the main body fixing mechanism (1) and is used to extract the dust generated during the loading and unloading process.

2. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The main moving mechanism (2) of the equipment includes a fixed seat (21), a movable seat (22) and a first driving mechanism (23). The fixed seat (21) is installed on the main fixed mechanism (1). A two-stage slide rail (24) is provided between the movable seat (22) and the fixed seat (21). The first driving mechanism (23) is used to drive the movable seat (22) to translate relative to the fixed seat (21).

3. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The material tank lifting mechanism (3) includes a material tank clamping assembly (31), a lifting guide rail (32), and a second driving mechanism (33). The material tank clamping assembly (31) is used to clamp the material tank. The material tank clamping assembly (31) is slidably arranged on the lifting guide rail (32). A drag chain is provided between the material tank clamping assembly (31) and the lifting guide rail (32). The second driving mechanism (33) is used to drive the material tank clamping assembly (31) to move up and down along the lifting guide rail (32).

4. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The material tank transfer platform mechanism (4) includes a gripper assembly (41), a rotating platform (42), a lifting guide rail (43), a third drive mechanism (44), and a fourth drive mechanism (45). The gripper assembly (41) is used to grip the material tank. The gripper assembly (41) is slidably mounted on the lifting guide rail (43). The third drive mechanism (44) is used to drive the gripper assembly (41) to move up and down along the lifting guide rail (43). The lifting guide rail (43) is mounted on the rotating platform (42). The rotating platform (42) is rotatably connected to the main motion mechanism (2) of the equipment. The fourth drive mechanism (45) is used to drive the rotating platform (42) to rotate on the main motion mechanism (2) of the equipment.

5. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The material rod lifting mechanism (5) includes a material rod fixing seat (51), a lifting track (52) and a fifth drive mechanism (53). The material rod fixing seat (51) is provided with a material rod (54). The material rod fixing seat (51) is slidably arranged on the lifting track (52). The fifth drive mechanism (53) is used to drive the material rod fixing seat (51) to move up and down along the lifting track (52).

6. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The sample cup picking and placing mechanism (6) includes a sampling fixed seat (61), a sampling sliding seat (62), a sampling rotating seat (63), a sampling gripper (64), a sixth driving mechanism (65), and a seventh driving mechanism (66). The sampling gripper (64) is disposed on the sampling rotating seat (63) and is used to grip the sample cup. The sixth driving mechanism is used to drive the sampling sliding seat (62) to slide on the sampling fixed seat (61), and the seventh driving mechanism (66) is used to drive the sampling rotating seat (63) to rotate on the sampling sliding seat (62).

7. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The furnace head lifting mechanism (7) includes a furnace head fixing seat (71), a lifting guide rail (72) and an eighth drive mechanism (73). The furnace head fixing seat (71) is used to fix the furnace head, and the eighth drive mechanism (73) is used to drive the furnace head fixing seat (71) to move up and down along the lifting guide rail (72).

8. The integrated loading, unloading, sampling, and cleaning device according to claim 1, characterized in that, The furnace head cleaning mechanism (8) includes an ash collection bucket (81), a furnace head support platform (82) is provided on the top of the ash collection bucket (81), a rotating shaft (83) is provided inside the ash collection bucket (81), the rotating shaft (83) is connected to a ninth drive mechanism, and a horizontal brush (84) and a vertical brush (85) are provided on the rotating shaft (83). The horizontal brush (84) is used to clean the opening of the furnace head, and the vertical brush (85) is used to clean the inside of the furnace head.

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