Rod arranging device, spent fuel assembly processing system and rod arranging method

Abstract

The invention discloses a bar sorting device, a spent fuel assembly processing system and a bar sorting method, which are used for sequentially moving a plurality of bars entering the bar sorting device in a stepped stock bin so as to orderly sort the plurality of bars through a plurality of sub-stock bins and finally achieve the purpose of feeding a single bar. The rod arranging device comprises an overturning bin (2) and a stepped bin (3). The stepped stock bin (3) comprises two end plates which are oppositely arranged and a material arranging assembly. The material arranging assembly is located between the two end plates. A sub-stock bin is formed in the area defined by each material arranging assembly and the two end plates, and the multiple bars transferred into the stepped stock bin (3) from the overturning bin (2) firstly enter the first sub-stock bin close to the overturning bin (2). The material arranging assemblies are used for transferring the multiple bars from the first sub-bin close to the overturning bin (2) to the last sub-bin farthest from the overturning bin (2) step by step, and the single bar is transferred out of the last sub-bin.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power, and in particular relates to a rod material handling device, a spent fuel assembly processing system and a rod material handling method. Background Art

[0002] Spent fuel assembly disassembly is a key, complex and necessary process in spent fuel reprocessing plants, which is used to shred the fuel rods in the spent fuel assembly. At present, most of the spent fuel disassembly devices in my country are shears, and shears may cause some adverse consequences when processing spent fuel assemblies with stainless steel outer sleeves. Therefore, it is necessary to push out the fuel rods in the spent fuel assembly before processing.

[0003] A spent fuel assembly includes multiple fuel rods. After the multiple fuel rods in the spent fuel assembly are ejected, they need to be sorted and then sent one by one to the shredding device for subsequent processing. This process is cumbersome, requires manual assistance and is time-consuming.

[0004] There is currently no device that can comb multiple fuel rods into single ones and then transport them to the shredding device. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a rod handling device, a spent fuel assembly processing system and a rod handling method in view of the above-mentioned deficiencies in the prior art, which can enable multiple rods entering the rod handling device to move in sequence in a stepped silo, comb the multiple rods through multiple sub-silos, and finally achieve the purpose of single-rod feeding.

[0006] In a first aspect, an embodiment of the present invention provides a rod handling device, which includes a turning bin and a step bin. The turning bin is used to receive a plurality of rods and then turn them sideways to transfer the plurality of rods to the step bin laterally. The step bin is located on one side of the turning bin. The step bin includes two end plates and a material handling assembly that are arranged opposite to each other. The material handling assembly is located between the two end plates, and there are multiple of them, and the multiple material handling assemblies are connected in sequence; each material handling assembly and the area surrounded by the two end plates form a sub-bin, and the plurality of rods transferred from the turning bin to the step bin first enter the first sub-bin close to the turning bin. Each of the material handling assemblies is used to transfer the plurality of rods from the first sub-bin close to the turning bin step by step to the last sub-bin farthest from the turning bin, and transfer a single rod out from the last sub-bin.

[0007] In some embodiments, along the first direction, each of the material sorting components includes a first plate, a lifting plate, and a second plate, which are arranged between the two end plates, the first plate and the second plate are close to each other and form a V-shape, the lifting plate is attached to the second plate and is parallel to the plate surface of the second plate; the top end of the second plate of the previous material sorting component is directly connected to the top end of the first plate of the next material sorting component; the first direction is the direction away from the flip bin. In each of the lifting plates, the top surface of the lifting plate is inclined toward the first direction, and the lifting plate can reciprocate up and down along the surface of the second plate; when the lifting plate rises, the rods in the corresponding sub-bin are driven to rise along the surface of the second plate through its top surface, and when the position of the rods is higher than the top end of the second plate, the rods slide into the next sub-bin, and finally a single rod is rolled out of the last sub-bin.

[0008] In some embodiments, the diameter of the rod is d, the thickness of the lifting plate is D, and 1.1d≤D≤1.3d.

[0009] In some embodiments, the flip bin includes a flip bin door, which can be opened when flipped under the action of an external force and closed under the action of its own gravity.

[0010] In some embodiments, the rod material handling device further comprises a first drive assembly and a second drive assembly. The first drive assembly is connected to each of the lifting plates, and is used to drive each of the lifting plates to reciprocate up and down. The second drive assembly is connected to the flip bin, and is used to drive the flip bin to flip so that the rods in the flip bin are transversely transferred to the step bin, and to drive the flip bin to reset after flipping.

[0011] In some embodiments, the rod material is a spent fuel rod, and the flip bin and the stepped bin are both arranged in a shielded room. The first drive assembly includes a first drive member and a first transmission member, the first drive member is arranged outside the shielded room, the first transmission member is arranged in the shielded room, and is connected to each of the lifting plates; the first drive member is connected to the first transmission member after passing through the shielding wall of the shielded room, so as to drive each of the lifting plates to reciprocate up and down through the first transmission member. The second drive assembly includes a second drive member and a second transmission member, the second drive member is arranged outside the shielded room, the second transmission member is arranged on the stepped bin in the shielded room, and is connected to the flip bin; the second drive member is connected to the second transmission member after passing through the shielding wall of the shielded room, so as to drive the flip bin to flip and reset through the second transmission member.

[0012] In some embodiments, the first driving member is detachably connected to the first transmission member via a first docking module, and the second driving member is detachably connected to the second transmission member via a second docking module.

[0013] In some embodiments, the rod material processing device further comprises a fixed bracket. The first transmission member is arranged on the fixed bracket, and the stepped material bin is detachably arranged on the fixed bracket through a first quick release mechanism. The tops of the two end plates of the stepped material bin are both provided with first lifting ears.

[0014] Therefore, the rod handling device in the embodiment of the present invention can make the turning bin flip sideways after receiving multiple rods by setting up a turning bin and a step bin, and transfer multiple rods to the step bin laterally. By setting up multiple material handling components between the two end plates of the step bin, each material handling component and the area surrounded by the two end plates can form a sub-bin; after the multiple material handling components are connected in sequence, the multiple sub-bins are also connected in sequence; by making each material handling component transfer the rods from the first sub-bin close to the turning bin to the last sub-bin farthest from the turning bin step by step, the multiple material handling components can drive the rods to move in the multiple sub-bins in sequence. In this process, the multiple sub-bins can orderly organize the rods by step-by-step material handling, and finally transfer a single rod from the last sub-bin to achieve the output of a single rod.

[0015] In a second aspect, an embodiment of the present invention further provides a spent fuel assembly processing system, which includes a disassembly device and a rod handling device in the first aspect. The disassembly device is used to receive the spent fuel assembly and separate multiple spent fuel rods in the spent fuel assembly, and then transport the spent fuel rods to the rod handling device. The rod handling device is used to receive the multiple spent fuel rods, handle the multiple spent fuel rods, and finally roll a single spent fuel rod out of the last sub-bin of the stepped bin.

[0016] In the third aspect, an embodiment of the present invention further provides a method for sorting rods, which uses the rod sorting device of the first aspect, and comprises: the turning bin receives a plurality of rods and then performs sideways turning, and laterally transferring the rods to a first sub-bin of a stepped bin close to the turning bin; a plurality of material sorting components transfer the rods step by step from the first sub-bin close to the turning bin to the last sub-bin farthest from the turning bin, and transfer a single rod out from the last sub-bin.

[0017] The spent fuel assembly processing system and the rod material handling method provided in the embodiments of the present invention have the same beneficial effects as the above-mentioned rod material handling device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : A forward schematic diagram of a rod processing device provided by an embodiment of the present invention;

[0019] Figure 2 : A schematic diagram of a rod material processing device provided by an embodiment of the present invention from the back;

[0020] Figure 3 : A partial structural diagram of a rod processing device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0022] Embodiment 1:

[0023] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a rod material processing device, which is used in the process of bar material processing and conveying, and is used to comb multiple rods into a single rod and output it to a subsequent process.

[0024] like Figure 1 and Figure 2 As shown, the rod handling device includes a turning bin 2 and a step bin 3. The turning bin 2 is used to receive a plurality of rods and then turn them sideways to transfer the plurality of rods to the step bin 3 laterally.

[0025] Exemplarily, the turning bin 2 is arranged near the bar stock generating device, and the generated multiple bar stocks are conveyed to the turning bin 2; alternatively, multiple bar stocks can be placed manually in the turning bin 2. The turning bin 2 can temporarily store multiple bar stocks.

[0026] Exemplarily, the shape of the turning bin 2 is a long strip, and the length of the turning bin 2 may be slightly greater than the length of the bar material, so that a plurality of bar materials may be arranged in order after entering the turning bin 2 .

[0027] In the initial position, the flip bin 2 is in a horizontal state, which is convenient for receiving the rods and temporarily storing them in the flip bin 2; when the rods in the flip bin 2 need to be transferred to the step bin 3, the flip bin 2 is flipped sideways, and the rods slide into the step bin 3 due to gravity; after that, the flip bin 2 can be restored to a horizontal state.

[0028] like Figure 1 and Figure 2 As shown, the stepped bin 3 is located on one side of the tilting bin 2. Figure 3The step bin 3 includes two end plates and a material sorting assembly that are arranged opposite to each other. The material sorting assembly is located between the two end plates, and there are multiple material sorting assemblies, which are connected in sequence. Each material sorting assembly and the area surrounded by the two end plates form a sub-bin, and the multiple bar materials transferred from the turnover bin 2 to the step bin 3 first enter the first sub-bin close to the turnover bin 2. Each material sorting assembly is used to transfer multiple bar materials from the first sub-bin close to the turnover bin 2 to the last sub-bin farthest from the turnover bin 2 step by step, and transfer a single bar material from the last sub-bin.

[0029] like Figure 1 As shown, the two end plates are vertically arranged to protect the bars entering the sub-bin and prevent the bars from falling.

[0030] Exemplarily, the number of material sorting components may be two, three or four, etc. This embodiment shows two material sorting components. Multiple material sorting components can achieve better material sorting function.

[0031] The multiple material sorting components are connected in sequence, so the multiple material sorting components are connected in sequence to the multiple sub-bins formed by the two end plates. After the multiple bars enter the first sub-bin near the turning bin 2, the multiple material sorting components drive the bars to move in the multiple sub-bins in sequence. In this process, the multiple sub-bins arrange the bars in an orderly manner through a step-by-step sorting method, and finally a single bar is transferred out from the last sub-bin to achieve the output of a single bar.

[0032] Therefore, the rod handling device in the embodiment of the present invention can make the turning bin 2 turn sideways after receiving multiple rods by setting the turning bin 2 and the step bin 3, and transfer the multiple rods to the step bin 3 laterally. By setting multiple material handling components between the two end plates of the step bin 3, each material handling component and the area surrounded by the two end plates can form a sub-bin; after the multiple material handling components are connected in sequence, the multiple sub-bins are also connected in sequence; by making each material handling component transfer the rods from the first sub-bin close to the turning bin 2 to the last sub-bin farthest from the turning bin 2 step by step, the multiple material handling components can drive the rods to move in the multiple sub-bins in sequence. In this process, the multiple sub-bins can orderly organize the rods by step-by-step material handling, and finally transfer a single rod from the last sub-bin to achieve the output of a single rod.

[0033] In some embodiments, in combination Figure 1 and Figure 3, along the first direction X, each material sorting assembly includes a first plate 4, a lifting plate 6 and a second plate 5, which are arranged between two end plates, the first plate 4 and the second plate 5 are close to each other and form a V shape, the lifting plate 6 is attached to the second plate 5 and is parallel to the plate surface of the second plate 5; the top end of the second plate 5 of the previous material sorting assembly is directly connected to the top end of the first plate 4 of the next material sorting assembly; the first direction X is the direction away from the flip bin 2. In each lifting plate 6, the top surface of the lifting plate 6 is inclined toward the first direction X, and the lifting plate 6 can reciprocate up and down along the surface of the second plate 5; when the lifting plate 6 rises, it drives the rods in the corresponding sub-bin to rise along the surface of the second plate 5 through its top surface, and when the position of the rods is higher than the top end of the second plate 5, the rods slide into the next sub-bin, and finally make the single rod roll out of the last sub-bin.

[0034] Exemplarily, the first plate 4, the lifting plate 6 and the second plate 5 can be made of metal materials such as stainless steel and aluminum, so that the strength of the first plate 4, the lifting plate 6 and the second plate 5 is higher and the service life of the first plate 4, the lifting plate 6 and the second plate 5 is improved. Of course, the first plate 4, the lifting plate 6 and the second plate 5 can also be made of non-metallic materials.

[0035] Exemplarily, the first plate 4, the lifting plate 6 and the second plate 5 can be independent of each other, and the top end of the second plate 5 of the previous material sorting component is connected to the top end of the first plate 4 of the next material sorting component by welding; or, the second plate 5 in the previous material sorting component and the first plate 4 in the next material sorting component are formed by bending the same plate.

[0036] Understandable, such as Figure 3 As shown, the shape of each sub-silo is also V-shaped.

[0037] Exemplary, combined Figure 1 and Figure 3 , a protective plate is also provided on the side of the first sub-bin close to the turning bin 2, which is stacked on the corresponding first plate 4 and then bent upward to prevent the bars entering the first sub-bin from falling. A hopper 16 is provided on the outside of the last sub-bin away from the turning bin 2, and the hopper 16 is connected to the corresponding second plate 5 to receive the bars rolled out of the last sub-bin and guide the bars so that the bars can roll along the hopper 16 to the target position (for example, in a single-bar transfer device).

[0038] Exemplarily, the first plate 4 , the lifting plate 6 , and the second plate 5 are in contact with each other in sequence, which can prevent the bar from falling from the gap between the first plate 4 and the lifting plate 6 , and the gap between the lifting plate 6 and the second plate 5 .

[0039] Exemplarily, the up and down reciprocating motion of each lifting plate 6 may be synchronous or asynchronous.

[0040] It should be noted that, when each lifting plate 6 is lowered, it can be lowered to the lowest point of the corresponding sub-bin.

[0041] Combination Figure 3 , when there are bars in the sub-bin and the lifting plate 6 descends to the lowest point of the sub-bin, because the shape of the sub-bin is V-shaped, the bars will move to the lowest point and get stuck in the gap between the top surface of the lifting plate 6 and the plate surface of the second plate 5; when the lifting plate 6 rises, the top surface of the lifting plate 6 pushes the bars to rise along the surface of the second plate 5; when the position of the bars is higher than the top of the second plate 5, due to the oblique pushing force of the top surface of the lifting plate 6, the bars slide into the next sub-bin.

[0042] Through the up and down reciprocating motion of the lifting plates 6 in the multiple material sorting components, the rods in the previous sub-bin are continuously driven into the next sub-bin, and in this process, each lifting plate 6 can only drive part of the rods in the previous sub-bin to rise and slide into the next sub-bin, which makes the number of rods in the next sub-bin smaller than the number of rods in the previous bin. This process is repeated to achieve material sorting of the rods, and ultimately achieve only a single rod rolling out of the last sub-bin at a time.

[0043] In some embodiments, the diameter of the rod is d, the thickness of the lifting plate 6 is D, and 1.1d≤D≤1.3d.

[0044] Exemplarily, when the diameter d of the rod is 10 cm, the thickness D of the lifting plate 6 satisfies 11 cm≤D≤13 cm. For example, the thickness of the lifting plate 6 may be 11 cm, 12 cm, or 13 cm.

[0045] Combination Figure 3 Through the above arrangement, the width of the top surface of the lifting plate 6 can be increased, and the size of the gap between the top surface of the lifting plate 6 and the second plate 5 can be increased, so that it is convenient for the bar to be inserted into the gap between the top surface of the lifting plate 6 and the second plate 5; and even if the bar is slightly bent, the slightly bent bar can be inserted into the gap between the top surface of the lifting plate 6 and the second plate 5, so that the lifting plate 6 can better push the bar to rise along the surface of the second plate 5 through the top surface, and transport the bar to the next sub-bin.

[0046] In some examples, the first plate 4, the lifting plate 6 and the second plate 5 are all detachably arranged on the two end plates to facilitate replacement according to the shape and size of the rods, so that the first plate 4, the lifting plate 6 and the second plate 5 can adapt to rods of different types and sizes.

[0047] In some examples, a plurality of baffle plates are further arranged on the end plate, one baffle plate is arranged directly above a second plate 5, and the distance between the baffle plate and the top of the second plate 5 is only enough for one bar to pass through. When the lifting plate 6 drives the multiple stacked bars to rise, the baffle plate can prevent the excess bars from entering the next sub-bin, so that the number of bars entering the next sub-bin is only one.

[0048] In some embodiments, Figure 1 As shown, the flip bin 2 includes a flip bin door 1, which can be opened when flipped under the action of an external force and closed under the action of its own gravity.

[0049] As described above, the reversing bin 2 is arranged close to the bar stock generating device, and an ejection bracket is arranged at the outlet of the bar stock generating device. After generating a plurality of bar stocks, the bar stock generating device moves toward the reversing bin door 1 of the reversing bin 2, and the reversing bin door 1 is turned and opened by the ejection bracket, and a plurality of bar stocks enter the reversing bin 2 through the outlet of the bar stock generating device. Afterwards, the bar stock generating device leaves, and the reversing bin door 1 is closed under its own gravity, so that the reversing bin 2 is closed.

[0050] The above arrangement facilitates the bar material of the bar material producing device to enter the turning bin 2 , and the turning bin 2 is automatically closed after the bar material enters the turning bin 2 , thereby preventing the bar material from leaking out of the turning bin door 1 .

[0051] In some embodiments, the rod material handling device further includes a first drive assembly and a second drive assembly. The first drive assembly is connected to each lifting plate 6, and is used to drive each lifting plate 6 to reciprocate up and down. The second drive assembly is connected to the turning bin 2, and is used to drive the turning bin 2 to turn over so that the rods in the turning bin 2 are transversely transferred to the step bin 3, and to drive the turning bin 2 to reset after turning over.

[0052] Exemplarily, the bottom of each lifting plate 6 is connected to the first driving assembly, and the first driving assembly can simultaneously drive each lifting plate 6 to reciprocate up and down.

[0053] Exemplarily, the first driving component may be a cylinder capable of reciprocating motion, a linear motor, etc.

[0054] Exemplarily, the flip bin 2 is hinged on a fixed plate, and the second driving assembly can provide a torsional force to the flip bin 2 to drive the flip bin 2 to flip.

[0055] Through the above arrangement, it is convenient to control the movements of the lifting plate 6 and the turning bin 2.

[0056] In some embodiments, the rod material is a spent fuel rod, and the tilting bin 2 and the stepped bin 3 are both arranged in a shielded room.

[0057] Exemplarily, the above-mentioned rod material generating device may be a spent fuel assembly disassembling device, which is used to separate a plurality of spent fuel rods inside the spent fuel assembly and transport the separated plurality of spent fuel rods to the turning chamber 2 .

[0058] In some embodiments, the first driving assembly includes a first driving member and a first transmission member. The first driving member is arranged outside the shielding room, and the first transmission member is arranged inside the shielding room and is connected to each lifting plate 6. The first driving member passes through the shielding wall of the shielding room and is connected to the first transmission member to drive each lifting plate 6 to reciprocate up and down through the first transmission member.

[0059] Exemplarily, the first driving member may be a general motor, etc., and the first driving member passes through the shielding wall through the penetration member. The first driving member is arranged outside the shielding room to reduce the impact of radiation on the first driving member and facilitate the inspection and replacement of the first driving member.

[0060] like Figure 2 As shown, the first transmission member may include a commutator 9 and an elevator 8 , the commutator 9 is transmission-connected to the motor, the commutator 9 is transmission-connected to the elevator 8 , and the elevator 8 is connected to each lifting plate 6 .

[0061] In some examples, the elevator 8 is movably connected to each lifting plate 6 to facilitate disassembly between the elevator 8 and each lifting plate 6.

[0062] refer to Figure 2 The power of the motor (i.e., the first driving member) is transmitted to the commutator 9, and the commutator 9 converts the vertically transmitted power into the horizontally transmitted power and transmits it to the elevator 8 to drive the elevator 8 to move. After the elevator 8 moves, it drives each lifting plate 6 to reciprocate up and down.

[0063] The above arrangement facilitates the modularization of the first drive assembly, and facilitates the assembly, maintenance and replacement of the first drive assembly.

[0064] In some embodiments, Figure 2 As shown, the second driving assembly includes a second driving member and a second transmission member 7. The second driving member is arranged outside the shielding room, and the second transmission member 7 is arranged on the stepped silo 3 in the shielding room and connected to the flipping bin 2. The second driving member is connected to the second transmission member 7 after passing through the shielding wall of the shielding room, so as to drive the flipping bin 2 to flip and reset through the second transmission member 7.

[0065] Exemplarily, the second driving member can be a general motor, etc., and the second driving member passes through the shielding wall through the penetration member. The second driving member is arranged outside the shielding room to reduce the impact of radiation on the second driving member and facilitate the inspection and replacement of the second driving member.

[0066] Exemplarily, the stepped silo 3 has a flip bracket, and the flip bin 2 is hinged on the flip bracket, so that the flip bin 2 can flip to one side of the stepped silo 3.

[0067] Exemplarily, the second transmission member 7 may be a reducer.

[0068] The turnover chamber 2 can accommodate a large number of spent fuel rods, and the reducer can amplify the driving force of the second driving member so that the second transmission member 7 has sufficient driving force to drive the turnover chamber 2 to flip.

[0069] The above arrangement facilitates the modularization of the second drive assembly, and facilitates the assembly, maintenance and replacement of the second drive assembly.

[0070] In some embodiments, Figure 2 As shown, the first driving member is detachably connected to the first transmission member via the first docking module 12 , and the second driving member is detachably connected to the second transmission member 7 via the second docking module 15 .

[0071] Exemplarily, one end of the first docking module 12 is connected to the first driving member through a quick interface, and the other end is connected to the first transmission member through a quick interface. One end of the second docking module 15 is connected to the second driving member through a quick interface, and the other end is connected to the second transmission member through a quick interface.

[0072] Through the above arrangement, the first drive member and the first transmission member can be quickly disassembled, which is beneficial to improving the convenience of disassembly and assembly of the first drive member and the first transmission member, and improving the convenience of disassembly and assembly of the second drive member and the second transmission member.

[0073] In some embodiments, Figure 2 As shown, the rod material handling device also includes a fixed bracket. The first transmission member is arranged on the fixed bracket, and the step bin 3 is detachably arranged on the fixed bracket through a first quick release mechanism 13. The tops of the two end plates of the step bin 3 are both provided with first lifting ears 14.

[0074] Exemplarily, the first quick release mechanism 13 is a C-type quick release mechanism. Both end plates of the stepped silo 3 have a first fixing plate extending outward, and a second fixing plate is arranged on the fixing bracket at a position corresponding to the first fixing plate.

[0075] After the stepped silo 3 is placed on the fixed bracket, the first fixed plate contacts the second fixed plate. At this time, the first fixed plate and the second fixed plate are clamped by the C-type quick release mechanism, so that the stepped silo 3 is fixed on the fixed bracket.

[0076] When the stepped bin 3 needs to be separated, the rod handling device can be divided into two independent parts by only unloading the force of the C-type quick-release mechanism and then removing it, wherein the first part is the stepped bin 3 and the turning bin 2, and the second part is the fixed bracket and the first transmission member. Therefore, the lifting tool can lift the first part through the first lifting lug 14 for separate maintenance or replacement.

[0077] Therefore, the difficulty of disassembling and assembling the rod material processing device can be reduced, and the remote disassembling and assembling and maintenance functions of the rod material processing device can be realized easily.

[0078] In some examples, such as Figure 2 As shown, the above-mentioned fixing bracket includes a first fixing bracket and a second fixing bracket, the first fixing bracket is arranged above the second fixing bracket, and the first fixing bracket is provided with a second lifting ear 18. The above-mentioned first part is arranged on the first fixing bracket, and the first transmission member is arranged on the first fixing bracket; the second fixing bracket is placed on a fixed surface (or the ground) to provide support for each component arranged on the second fixing bracket.

[0079] Similarly, the first fixing bracket is detachably arranged on the second fixing bracket through the second quick release mechanism 19, and the second quick release mechanism 19 can also be a C-type quick release mechanism, so that the lifting device can lift the first fixing bracket and the first transmission member separately through the second lifting lug 18 for maintenance or replacement.

[0080] In some examples, such as Figure 1 As shown, a material drop detection device 17 is also provided on the stepped silo 3 , and the material drop detection device 17 is used to detect the number of rods outputted from the last sub-silo of the stepped silo 3 .

[0081] Exemplarily, the material drop-in-place detection device 17 may be a counter, such as an electronic counter.

[0082] Through the above arrangement, the number of bars output by the bar processing device can be counted, which serves as a basis for processing by subsequent devices.

[0083] Combine the following Figure 1 , Figure 2 and Figure 3 The working process of the rod material processing device in this embodiment is described. In the initial state, the turning bin 2 is in a horizontal state.

[0084] S1. Multiple bars enter the turning bin 2 through the turning bin door 1.

[0085] S2, the second driving member is started, and the turning bin 2 is turned over by the second transmission member 7, and the multiple rods in the turning bin 2 all slide into the stepped bin 3 and enter a sub-bin closest to the turning bin 2.

[0086] S3, the second driving member drives the flip bin 2 to return to a horizontal state through the second transmission member 7, and the second driving member is closed.

[0087] S4, the first driving member is started, and each lifting plate 6 is driven to reciprocate up and down through the first transmission member. In each sub-bin, when the lifting plate 6 drops to the lowest point, a single bar is stuck in the gap between the top surface of the lifting plate 6 and the second plate 5. After that, the lifting plate 6 rises along the surface of the second plate 5, and the bar is driven to rise along the surface of the second plate 5 through the top surface of the lifting plate 6. When the lifting plate 6 rises to the highest point, the height of the top surface of the lifting plate 6 exceeds the height of the second plate 5. Because the top surface of the lifting plate 6 is inclined to the first direction X, the bar slides in the first direction X and enters the next sub-bin. Repeat the above actions, the bar advances in multiple sub-bins in turn, and finally the last sub-bin transports one bar to the outside at a time.

[0088] S5. After all the bars in the stepped bin 3 are output through the last sub-bin, the first driving member is closed.

[0089] At this point, the multiple bars entering the bar handling device can be moved in sequence in the stepped silo 3, so that the multiple bars can be orderly sorted by the multiple material handling components of the stepped silo 3, and finally the purpose of single bar feeding can be achieved.

[0090] Embodiment 2:

[0091] The embodiment of the present invention also provides a spent fuel assembly processing system for use in the post-processing process of spent fuel assemblies. The spent fuel assembly processing system includes a disassembly device and the rod handling device in Example 1. The disassembly device is used to receive the spent fuel assembly and separate multiple spent fuel rods in the spent fuel assembly, and then transport the spent fuel rods to the rod handling device. The rod handling device is used to receive multiple spent fuel rods, handle the multiple spent fuel rods, and finally roll a single spent fuel rod out of the last sub-bin of the stepped bin 3 to the subsequent device.

[0092] Exemplarily, the disassembly device is used to separate the stainless steel outer sleeve of the spent fuel assembly and the multiple spent fuel rods inside, so that the spent fuel rods can be processed separately, avoiding the adverse consequences that may be caused by the shearing machine in the prior art processing the spent fuel assembly with the stainless steel outer sleeve.

[0093] After the disassembly device separates the multiple spent fuel rods, the multiple spent fuel rods are transported to the turning bin 2 of the rod handling device.

[0094] Exemplarily, the above-mentioned subsequent device may be a spent fuel rod shredding device to shred the spent fuel rods into short segments.

[0095] Through the above arrangement, after the disassembly device separates multiple spent fuel rods, the multiple spent fuel rods can be sorted so that a single spent fuel rod rolls out from the last sub-bin of the stepped silo 3, thereby realizing the single-rod feeding function of the spent fuel assembly processing system.

[0096] Embodiment 3:

[0097] The embodiment of the present invention also provides a bar material sorting method, which uses the bar material sorting device in embodiment 1 for use in a scenario where a single bar material needs to be output. The bar material sorting method includes: after receiving multiple bar materials, the turning bin 2 is turned sideways, and the bar materials are transversely transferred to the first sub-bin of the stepped bin 3 close to the turning bin 2; multiple material sorting components transfer the bar materials from the first sub-bin close to the turning bin 2 step by step to the last sub-bin farthest from the turning bin 2, and the single bar material is transferred out from the last sub-bin.

[0098] After the turning bin 2 is turned over, multiple rods in the turning bin 2 are transferred laterally to the first sub-bin of the step bin 3 close to the turning bin 2. In the process that the multiple material sorting components of the step bin 3 transfer the rods from the first sub-bin close to the turning bin 2 step by step to the last sub-bin farthest from the turning bin 2, multiple sub-bins organize the rods in an orderly manner through a step-by-step material sorting method, and finally a single rod is transferred out from the last sub-bin, thereby realizing the material sorting of the rods and the output of a single rod, meeting the usage requirements of the scenario that requires the output of a single rod.

[0099] After that, the turning bin 2 is reset to wait for the input of the next batch of bars.

[0100] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A rod cooking device, characterized in that: include: A turning bin (2) is used for receiving a plurality of bar materials and then turning them sideways to transfer the plurality of bar materials laterally to a stepped bin (3); and, The stepped material bin (3) is located on one side of the tilting bin (2); the stepped material bin (3) comprises: Two end plates arranged opposite to each other, and A material sorting component is located between the two end plates, and the number of the material sorting components is multiple, and the multiple material sorting components are connected in sequence; each material sorting component and the area enclosed by the two end plates form a sub-bin, and the multiple bars transferred from the turning bin (2) to the stepped bin (3) first enter the first sub-bin close to the turning bin (2); Each of the material sorting components is used to transfer the multiple bar materials from the first sub-bin close to the turning bin (2) step by step to the last sub-bin farthest from the turning bin (2), and to transfer a single bar material out of the last sub-bin.

2. The rod cooking device according to claim 1, characterized in that: Along the first direction, each of the material sorting components comprises a first plate (4), a lifting plate (6) and a second plate (5), which are arranged between the two end plates, the first plate (4) and the second plate (5) are close to each other and form a V shape, the lifting plate (6) is attached to the second plate (5) and is parallel to the plate surface of the second plate (5); the top end of the second plate (5) of the previous material sorting component is directly connected to the top end of the first plate (4) of the next material sorting component; the first direction is the direction away from the turning bin (2); In each of the lifting plates (6), the top surface of the lifting plate (6) is inclined toward the first direction, and the lifting plate (6) can reciprocate up and down along the surface of the second plate (5); when the lifting plate (6) rises, the rods in the corresponding sub-bin are driven to rise along the surface of the second plate (5) through its top surface, and when the position of the rods is higher than the top of the second plate (5), the rods slide into the next sub-bin, and finally a single rod rolls out of the last sub-bin.

3. The rod cooking device according to claim 1, characterized in that: The diameter of the bar is d, the thickness of the lifting plate (6) is D, and 1.1d≤D≤1.3d.

4. The rod cooking device according to claim 1, characterized in that: The flip bin (2) comprises a flip bin door (1), and the flip bin door (1) can be opened when flipped under the action of an external force, and closed under the action of its own gravity.

5. The rod cooking device according to any one of claims 1 to 4, characterized in that: Also includes: A first driving assembly, connected to each of the lifting plates (6), and used to drive each of the lifting plates (6) to reciprocate up and down; and, The second driving component is connected to the flip bin (2) and is used to drive the flip bin (2) to flip so that the bar materials in the flip bin (2) are transversely transferred to the stepped bin (3), and to drive the flip bin (2) to reset after flipping.

6. The rod cooking device according to claim 5, characterized in that: The rod material is a spent fuel rod, and the turning bin (2) and the stepped bin (3) are both arranged in a shielded room; The first driving assembly comprises a first driving member and a first transmission member, wherein the first driving member is arranged outside the shielding room, and the first transmission member is arranged inside the shielding room and is connected to each of the lifting plates (6); the first driving member passes through the shielding wall of the shielding room and is connected to the first transmission member, so as to drive each of the lifting plates (6) to reciprocate up and down through the first transmission member; The second driving assembly comprises a second driving member and a second transmission member (7), wherein the second driving member is arranged outside the shielding room, and the second transmission member (7) is arranged on the stepped silo (3) inside the shielding room and connected to the overturning silo (2); the second driving member passes through the shielding wall of the shielding room and is connected to the second transmission member (7) so as to drive the overturning silo (2) to overturn and reset through the second transmission member (7).

7. The rod cooking device according to claim 6, characterized in that: The first driving member is detachably connected to the first transmission member via a first docking module (12); The second driving member is detachably connected to the second transmission member (7) via a second docking module (15).

8. The rod cooking device according to claim 7, characterized in that: Also included is a fixing bracket; The first transmission member is arranged on the fixed bracket, and the stepped material bin (3) is detachably arranged on the fixed bracket via a first quick-release mechanism (13); The tops of the two end plates of the stepped silo (3) are both provided with first lifting ears (14).

9. A spent fuel assembly processing system, characterized in that: include: A disassembly device, used for receiving a spent fuel assembly and separating a plurality of spent fuel rods in the spent fuel assembly, and then transporting the spent fuel rods to a rod handling device; and, The rod handling device according to any one of claims 1 to 8 is used to handle the multiple spent fuel rods after receiving them, and finally roll a single spent fuel rod out of the last sub-bin of the stepped silo 3.

10. A method for sorting bar material, characterized in that: Using the rod material processing device according to any one of claims 1 to 8, the rod material processing method includes: After receiving a plurality of bar materials, the turning bin (2) turns sideways, and the bar materials are transversely transferred to the first sub-bin of the stepped bin (3) close to the turning bin (2); A plurality of material sorting components transfer the bar material from the first sub-bin close to the turning bin (2) step by step to the last sub-bin farthest from the turning bin (2), and transfer a single bar material out from the last sub-bin.

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