Bar disintegration device and method and spent fuel assembly treatment system

Abstract

The invention discloses a bar disintegration device and method and a spent fuel assembly treatment system. The bar disintegration device and method can directly shred and disintegrate bars after the bars are received. The bar disintegration device comprises a bar transfer assembly (1) and a shredding and disintegration assembly (3). The bar material transferring assembly (1) is used for receiving the bar materials (2) and transferring the single bar materials (2) into the shredding and disintegration assembly (3). The shredding and disintegration assembly (3) and the bar transferring assembly (1) are oppositely arranged, and the shredding and disintegration assembly (3) is used for shredding the bars (2) transferred into the shredding and disintegration assembly (3) into small sections after the bars (2) are cut off.

Description

Technical Field

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

[0002] In the spent fuel post-processing process, the commonly used spent fuel disintegration device is a shearing machine, which directly shears the spent fuel assembly with a stainless steel outer sleeve. The short segments formed after the spent fuel assembly with the outer sleeve is sheared have a clumping phenomenon, resulting in a larger aggregate size of the short segments, which will affect the subsequent process. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a rod disassembly device and method thereof, and a spent fuel assembly processing system in view of the above-mentioned deficiencies in the prior art, which can directly shred and disassemble the rods after receiving them.

[0004] The inventors of the present application have discovered that the above-mentioned problem can be avoided by first removing the outer sleeve and then directly shredding and dismantling the fuel rods with the outer sleeve removed.

[0005] To this end, in a first aspect, an embodiment of the present invention provides a bar material disassembly device, which includes a bar material transfer component and a shredding and disassembling component. The bar material transfer component is used to receive the bar material and transfer a single bar material to the shredding and disassembling component. The shredding and disassembling component is arranged opposite to the bar material transfer component, and is used to cut the bar material transferred to the inside thereof and shred it into small segments.

[0006] In some embodiments, the shredding and disintegration assembly includes a housing, a clamp, a first cutter, and a second cutter. The clamp is disposed on the inner side of the housing and is used to clamp the bar stock; the bar stock passes through the clamp after entering the housing. The first cutter is rotatably disposed on the housing and is located on the inner side of the clamp, and is used to cut off the bar stock passing through the clamp. The second cutter is rotatably disposed in the housing and is located below the first cutter, and is used to tear the bar stock cut off by the first cutter into small segments.

[0007] In some embodiments, the shredding and disintegrating assembly further includes a first driving member and a first transmission member. One end of the first transmission member is connected to the first driving member, and the other end is connected to the first cutter and the second cutter respectively, for driving the first cutter and the second cutter to rotate respectively.

[0008] In some embodiments, the shredding and disintegration assembly further includes: a guide baffle; the guide baffle is disposed between the first tool and the second tool for guiding the bar stock; the bar stock cut off by the first tool slides into the second tool under the guidance of the guide baffle.

[0009] In some embodiments, the bar material transfer assembly includes a feeding bin and a second driving member. The feeding bin is used to accommodate the bar materials; the feeding bin has a discharge port, and the discharge port is opposite to the housing of the shredding and disintegration assembly; a guide rail is provided inside the feeding bin, and the bar materials slide onto the guide rail after entering the feeding bin. The second driving member is provided on the feeding bin, and is used to drive the bar materials on the guide rail to enter the housing of the shredding and disintegration assembly through the discharge port.

[0010] In some embodiments, the feed side of the feeding bin has a sealing cover that can be opened and closed. The bar transfer assembly also includes a third driving member, a counter and a controller. The third driving member is fixed to the feeding bin, and is used to drive the sealing cover to open and close. The counter is set on the feeding bin, and is used to detect the number of bars falling into the feeding bin. The controller is electrically connected to the counter and the third driving member, respectively, and is used to control the third driving member to drive the sealing cover to open and close according to the number of bars falling into the feeding bin.

[0011] In some embodiments, the bottom plate of the feeding bin can be raised and lowered, and the guide rail is arranged on the bottom plate. The bar material transfer assembly further includes a lifting assembly. The lifting assembly is arranged below the feeding bin and connected to the bottom plate of the feeding bin, and is used to drive the bottom plate of the feeding bin to be raised and lowered, so as to drive the bars on the bottom plate to be raised and lowered. The controller is also electrically connected to the lifting assembly, and is also used to control the lifting assembly to drive the bottom plate to be raised and lowered according to the number of bars falling into the feeding bin.

[0012] In some embodiments, the second driving member includes a push rod, a second transmission member, a split coupling and a power member. The push rod is arranged in the feeding bin, and is used to push the bar material on the guide rail to move. One end of the second transmission member is connected to the push rod, and the other end is connected to the first end of the split coupling. The power member is connected to the second end of the split coupling, and is used to drive the split coupling to rotate, so as to drive the push rod to move through the split coupling and the second transmission member.

[0013] Therefore, the rod dismantling device in the embodiment of the present invention, by setting up a rod transfer component and a shredding and dismantling component, and arranging the shredding and dismantling component relative to the rod transfer component, can enable the rod transfer component to transfer a single rod to the shredding and dismantling component after receiving the rod, so as to avoid interference between multiple rods, and finally cut the rod transferred into the shredding and dismantling component and shred it into small sections, thereby realizing the shredding and dismantling of the rod.

[0014] In a second aspect, an embodiment of the present invention further provides a spent fuel assembly processing system, which includes a spent fuel assembly separation device and a rod disassembly device in the first aspect. The spent fuel assembly separation device is used to separate the fuel rods inside the spent fuel assembly and transport the separated fuel rods to the rod transfer assembly of the rod disassembly device; and.

[0015] In a third aspect, an embodiment of the present invention further provides a rod dismantling method, which adopts the rod dismantling device in the first aspect, and the method includes: conveying the rods to a rod transfer assembly, and after the rod transfer assembly receives the rods, transferring the single rods to a shredding and dismantling assembly; cutting the rods by the shredding and dismantling assembly and shredding them into small sections.

[0016] The spent fuel assembly processing system and the rod disassembly method provided in the embodiments of the present invention have the same beneficial effects as the above-mentioned rod disassembly device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : A structural diagram of a bar material transfer assembly provided in an embodiment of the present invention;

[0018] Figure 2 : A structural diagram of a shredding and disintegration assembly provided in an embodiment of the present invention;

[0019] Figure 3 : A structural diagram of a first tool and a second tool provided in an embodiment of the present invention;

[0020] Figure 4 : A partial structural diagram of a bar material transfer assembly 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 disassembly device, which is applied in a spent fuel reprocessing plant to process fuel rods in a spent fuel assembly.

[0024] like Figure 1 and Figure 2 As shown, the bar material disassembly device comprises a bar material transfer assembly 1 and a shredding and disassembling assembly 3. The bar material transfer assembly 1 is used to receive the bar material 2 and transfer a single bar material 2 to the shredding and disassembling assembly 3. The shredding and disassembling assembly 3 is arranged opposite to the bar material transfer assembly 1 and is used to cut and shred the bar material 2 transferred thereto into small segments.

[0025] Exemplarily, the rod 2 is a fuel rod in a spent fuel assembly, and the rod transfer assembly 1 is arranged near a preceding device (for example, a preprocessing device of a spent fuel assembly, used to remove the fuel rods of the spent fuel assembly). At this time, the rod transfer assembly 1 and the shredding and disintegration assembly 3 are both arranged in the hot chamber.

[0026] Exemplarily, the shredding and disintegration assembly 3 and the bar material transfer assembly 1 can be fixed on the ground respectively. A docking port is provided on the side of the shredding and disintegration assembly 3 facing the bar material transfer assembly 1, and the docking port contacts and presses the discharge port of the bar material transfer assembly 1 to achieve a seal between the shredding and disintegration assembly 3 and the bar material transfer assembly 1. After the single bar material 2 in the bar material transfer assembly 1 is discharged from the discharge port of the bar material transfer assembly 1, it passes through the docking port and enters the interior of the shredding and disintegration assembly 3.

[0027] The bar material transfer component 1 transfers a single bar material 2 to the shredding and disintegration component 3, which can avoid interference between multiple bar materials 2 and facilitate the shearing and shredding of the single bar material 2 by the shredding and disintegration component 3. The shredding and disintegration component 3 first cuts the bar material 2 into large sections, and then shreds the large sections into small sections, so as to facilitate the subsequent processing of the small sections.

[0028] In this way, the shredding and disintegration component 3 can be set shorter to process longer rods 2, and can process rods 2 of various lengths, which is beneficial to reducing the volume of the shredding and disintegration component 3; and compared with directly shredding the entire rod 2, it also reduces the power requirement during the shredding operation.

[0029] Therefore, the bar dismantling device in the embodiment of the present invention, by setting up the bar transfer component 1 and the shredding and dismantling component 3, and setting the shredding and dismantling component 3 relative to the bar transfer component 1, can enable the bar transfer component 1 to transfer a single bar 2 to the shredding and dismantling component 3 after receiving the bar 2, so as to avoid interference between multiple bar 2, and finally cut the bar 2 transferred to the inside through the shredding and dismantling component 3 and shred it into small segments, so as to realize the shredding and dismantling of the bar 2.

[0030] In some embodiments, in combination Figure 2 and Figure 3 The shredding and disintegration assembly 3 includes a housing 4, a clamp 5, a first cutter 6, and a second cutter 7. The clamp 5 is disposed on the inner side of the housing 4 and is used to clamp the bar 2. The bar 2 passes through the clamp 5 after entering the housing 4. The first cutter 6 is rotatably disposed on the housing 4 and is located on the inner side of the clamp 5, and is used to cut off the bar 2 passing through the clamp 5. The second cutter 7 is rotatably disposed in the housing 4 and is located below the first cutter 6, and is used to tear the bar 2 cut by the first cutter 6 into small segments.

[0031] The shell 4 is used to form a sealed space to prevent the debris formed when the rod material 2 inside is torn into pieces from scattering to the outside of the shell 4.

[0032] For example, Figure 2 As shown, a conical silo is formed at the bottom of the housing 4. The shredded small segments of the bar material 2 enter the next device (such as a dissolver) along the conical silo for subsequent operation. An air blowing pipe is installed on the top plate of the housing 4, and the air blowing pipe can blow air into the conical silo to drive the debris and dust formed when the bar material 2 is shredded into the conical silo, further suppressing the dispersion of dust.

[0033] Exemplarily, the clamp 5 is driven by a cylinder, and the cylinder drives the clamp 5 to close and clamp a single bar 2. The bar transfer assembly 1 is configured to transfer a single bar 2 to the shredding and disintegration assembly 3, which also facilitates the clamp 5 to clamp a single bar 2, and avoids the occurrence of unstable clamping when the clamp 5 clamps multiple bars 2.

[0034] It should be noted that when the clamp 5 clamps the bar 2, it can limit the bar 2. At this time, the bar 2 can still move relative to the clamp 5 so that the part of the bar 2 that has not entered the shell 4 can continue to pass through the clamp 5 and enter the shell 4.

[0035] Exemplarily, the first tool 6 is a five-claw tool, which can complete a cutting action by rotating 1 / 5 of a circle, thereby cutting off the portion of the bar 2 that passes through the fixture 5 .

[0036] As the remaining portion of the bar 2 enters the housing 4, the first cutter 6 continues to rotate, eventually cutting the entire bar 2 into several large sections.

[0037] Exemplarily, the second cutter 7 includes a main shredding cutter and an auxiliary shredding cutter, the cutter shafts of the main shredding cutter and the cutter shafts of the auxiliary shredding cutter are meshed with each other, and when the cutter shafts of the main shredding cutter and the cutter shafts of the auxiliary shredding cutter rotate, the cutter teeth of the main shredding cutter and the cutter teeth of the auxiliary shredding cutter cross each other. After the bar material 2 cut by the first cutter 6 falls between the main shredding cutter and the auxiliary shredding cutter below, the cutter teeth of the main shredding cutter and the cutter teeth of the auxiliary shredding cutter tear the bar material 2 into small pieces by relative movement.

[0038] Through the above arrangement, the bar material 2 can be cut by the first cutter 6 first, and the cut bar material 2 can fall into the second cutter 7 below and be torn into small pieces.

[0039] In some examples, a camera is disposed above the first cutter 6 and the second cutter 7 , and the situation inside the housing 4 can be observed through the camera, for example, the tearing effect of the bar 2 can be observed.

[0040] In some embodiments, Figure 2 and Figure 3As shown, the shredding and disintegrating assembly 3 further includes a first driving member 8 and a first transmission member 9. One end of the first transmission member 9 is connected to the first driving member 8, and the other end is connected to the first cutter 6 and the second cutter 7 respectively, for driving the first cutter 6 and the second cutter 7 to rotate respectively.

[0041] Exemplarily, the first driving member 8 may include a motor, etc., for providing power for the first tool 6 and the second tool 7 to rotate.

[0042] The first transmission member 9 may include a gear box, a transmission shaft, etc., and is used to transmit the power of the first driving member 8 to the first tool 6 and the second tool 7 respectively, so as to drive the first tool 6 and the second tool 7 to rotate respectively.

[0043] Exemplarily, when the rod material 2 is a fuel rod of a spent fuel assembly, the first driving member 8 can be arranged outside the hot chamber and connected to one end of the first transmission member 9. The other end of the first transmission member 9 passes through the shielding wall of the hot chamber and is respectively connected to the first tool 6 and the second tool 7 in the hot chamber.

[0044] Through the above arrangement, the first tool 6 and the second tool 7 are driven by the first driving member 8 and the first transmission member 9 .

[0045] In some embodiments, Figure 3 As shown, the shredding and disintegrating assembly 3 further includes a guide baffle 10 . The guide baffle 10 is disposed between the first cutter 6 and the second cutter 7 to guide the bar 2 ; the bar 2 cut by the first cutter 6 slides down into the second cutter 7 under the guidance of the guide baffle 10 .

[0046] Exemplarily, the guide baffle 10 is fixed on the housing 4. After the cut rod 2 hits the guide baffle 10, it falls along the guide baffle 10 to the outside of the knife shaft of the main shredder of the second cutter 7, and the rotating knife shaft of the main shredder rolls the fuel rod between the knife shaft of the main shredder and the knife shaft of the auxiliary shredder, and is finally shredded into small segments.

[0047] Through the above arrangement, the cut bar material 2 can be guided so that the cut bar material 2 falls into the shredding position of the second cutter 7, so that the bar material 2 can be shredded quickly.

[0048] In some embodiments, Figure 1 and Figure 4 As shown, the bar material transfer assembly 1 includes a feeding bin 11 and a second driving member 12. The feeding bin 11 is used to accommodate the bar material 2; the feeding bin 11 has a discharge port 11A, and the discharge port 11A is opposite to the housing 4 of the shredding and disintegration assembly 3. A guide rail 19 is arranged inside the feeding bin 11, and the bar material 2 slides on the guide rail 19 after entering the feeding bin 11. The second driving member 12 is arranged on the feeding bin 11, and is used to drive the bar material 2 on the guide rail 19 to enter the housing 4 of the shredding and disintegration assembly 3 through the discharge port 11A.

[0049] The discharge port 11A is opposite to the shell 4 so that the bar material 2 in the feeding bin 11 can be easily transported to the shell 4 of the shredding and disintegrating component 3 through the discharge port 11A.

[0050] For example, Figure 4 As shown, the guide rail 19 is arranged at the bottom of the feeding bin 11 , and the guide rail 19 can guide the bar material 2 , and the bar material 2 slides along the guide rail 19 and finally enters the shell 4 of the shredding and disintegrating assembly 3 from the discharge port 11A.

[0051] Exemplarily, the second driving member 12 is disposed on a side of the feeding bin 11 away from the housing 4 of the shredding and disintegrating assembly 3 .

[0052] The above arrangement can facilitate the transportation of the bar material 2 in the feeding bin 11 .

[0053] In some embodiments, Figure 1 As shown, the feeding side of the feeding bin 11 has a sealing cover plate 13 which can be opened and closed.

[0054] Exemplarily, the bottom end of the sealing cover plate 13 is hinged to the side plate of the feeding bin 11 .

[0055] When the bar material 2 needs to be transported into the feeding bin 11 , the sealing cover plate 13 is opened; after the bar material 2 enters the feeding bin 11 , the sealing cover plate 13 is closed to ensure the sealing of the feeding bin 11 .

[0056] Exemplarily, the sealing cover plate 13 is provided with a guide groove, and the bar material 2 conveyed by the preceding device first falls toward the sealing cover plate 13 and enters the interior of the feeding bin 11 along the guide groove.

[0057] like Figure 1 As shown, the bar material transfer assembly 1 further includes a third driving member 14, a counter and a controller. The third driving member 14 is fixed on the feeding bin 11, and is used to drive the sealing cover plate 13 to open and close. The counter is set on the feeding bin 11, and is used to detect the number of bar materials 2 falling into the feeding bin 11. The controller is electrically connected to the counter and the third driving member 14, respectively, and is used to control the third driving member 14 to drive the sealing cover plate 13 to open and close according to the number of bar materials 2 falling into the feeding bin 11.

[0058] The number of the third driving member 14 can be one or more. Figure 1 Two third drive members 14 are shown.

[0059] For example, Figure 1 As shown, the third driving member 14 is fixed on the top plate of the feeding bin 11 , and the free end of the third driving member 14 is connected to the top end of the sealing cover plate 13 .

[0060] Exemplarily, the third driving member 14 is a cylinder, and the free end of the cylinder drives the top end of the sealing cover plate 13 to rotate relative to the bottom end of the sealing cover plate 13 through extension and contraction, thereby realizing the opening and closing of the sealing cover plate 13.

[0061] Exemplarily, the counter may be a mechanical counter, a radar counter, an infrared counter, etc. The counter may be arranged near the sealing cover plate 13 to detect the number of the bars 2 falling into the feeding bin 11 .

[0062] The controller may be a general-purpose programmable logic controller.

[0063] It can be understood that when one rod 2 is conveyed into the feeding bin 11 at a time, the rod 2 will not affect the normal movement of the second driving member 12 after sliding onto the guide rail 19; when multiple rods 2 are conveyed into the feeding bin 11 at a time, the multiple rods 2 will be stacked, which may cause the rods 2 to stack on the guide rail 19, thereby affecting the normal movement of the second driving member 12, resulting in the second driving member 12 being unable to drive the rods 2 on the guide rail 19 through the discharge port 11A into the shell 4 of the shredding and disintegration assembly 3.

[0064] Exemplarily, when the counter does not detect the entry of the bar 2 (the counter count is 0 at this time), the third driving member 14 will not start, and the sealing cover 10 will remain in the open state. When the counter detects the entry of a single bar 2 (the counter count is 1 at this time), the third driving member 14 will start, driving the sealing cover 10 to close. When the counter detects the entry of multiple bars 2 (the counter count is greater than 1 at this time), the third driving member 14 will not start, and the sealing cover 10 will remain in the open state. At this time, the robot or power hand is required to take out the excess bars 2 so that only a single bar 2 remains in the feeding bin 11.

[0065] Through the above arrangement, the number of rods 2 falling into the feeding bin 11 can be detected, and according to the number of rods 2 falling into the feeding bin 11, the third driving member 14 can be controlled to drive the sealing cover plate 13 to open and close, thereby ensuring that the number of rods 2 entering the feeding bin 11 meets the demand.

[0066] In some embodiments, in combination Figure 1 and Figure 4 The bottom plate of the feeding bin 11 can be raised and lowered, and the guide rail 19 is arranged on the bottom plate. The bar material transfer assembly 1 also includes a lifting assembly 15. The lifting assembly 15 is arranged below the feeding bin 11 and connected to the bottom plate of the feeding bin 11, and is used to drive the bottom plate of the feeding bin 11 to be raised and lowered, so as to drive the bars 2 on the bottom plate to be raised and lowered. The controller is also electrically connected to the lifting assembly 15, and is also used to control the lifting assembly 15 to drive the bottom plate to be raised and lowered according to the number of bars 2 falling into the feeding bin 11.

[0067] Exemplarily, the lifting assembly 15 includes a motor and a commutator, and the commutator is used to convert the rotational force of the motor into a driving force in the vertical direction to drive the bottom plate of the feeding bin 11 to rise and fall.

[0068] Exemplarily, when the counter does not detect the entry of the bar 2 (the counter count is 0 at this time), and when the counter detects the entry of a single bar 2 (the counter count is 1 at this time), the lifting assembly 15 does not start, and the bottom plate position of the feeding bin 11 remains unchanged. When the counter detects the entry of multiple bars 2 (the counter count is greater than 1 at this time), the lifting assembly 15 starts, driving the bottom plate of the feeding bin 11 to descend, and the manipulator or power arm takes out the excess bars 2, so that only a single bar 2 remains on the bottom plate guide rail 19 of the feeding bin 11, and then the lifting assembly 15 drives the bottom plate of the feeding bin 11 to rise to the initial position.

[0069] Through the above arrangement, the lifting assembly 15 can be controlled to drive the bottom plate to rise and fall according to the number of rods 2 falling into the feeding bin 11, so that the staff can take away the excess rods 2 from the bottom plate of the feeding bin 11.

[0070] In some embodiments, in combination Figure 1 and Figure 4 The second driving member 12 includes a push rod 18, a second transmission member 16, a separation coupling 17 and a power member. The push rod 18 is disposed in the feeding bin 11 and is used to push the bar material 2 on the guide rail 19 to move. One end of the second transmission member 16 is connected to the push rod 18, and the other end is connected to the first end of the separation coupling 17. The power member is connected to the second end of the separation coupling 17 and is used to drive the separation coupling 17 to rotate, so as to drive the push rod 18 to move through the separation coupling 17 and the second transmission member 16.

[0071] Exemplarily, the end of the push rod 18 can extend out of the feeding bin 11 to push the bar material 2 completely into the housing 4 of the shredding and disintegrating assembly 3 .

[0072] The second transmission member 16 can convert the driving force in other directions into a driving force along the extending direction of the guide rail 19 , so as to drive the push rod 18 to move along the guide rail 19 .

[0073] Exemplarily, the second transmission member 16 includes an open chain drive assembly and a chain box located below the open chain drive assembly. The power member may include a motor, etc. When the rod material 2 is a fuel rod of a spent fuel assembly, the power member may be arranged outside the hot chamber, and the power member is connected to the second end of the split coupling 17 through a through-piece.

[0074] For example, Figure 4 As shown, a seal 20 is provided between the open chain drive assembly and the feeding bin 11 to maintain the seal between the open chain drive assembly and the feeding bin 11. The seal 20 may be an inflatable seal.

[0075] When the two ends of the separation coupling 17 are connected to each other, the power of the power member can be transmitted to the second transmission member 16 ; when the two ends of the separation coupling 17 are separated from each other, the power of the power member cannot be transmitted to the second transmission member 16 .

[0076] Exemplarily, the above-mentioned power part (such as a motor) is provided with a torque detection component for detecting the power value of the power part. When an abnormal power value is detected on the power part (for example, the power value suddenly increases), the movement of the push rod 18 may be abnormal. The staff can separate the two ends of the separate coupling 17 from each other to disconnect the power of the power part and avoid production accidents.

[0077] Through the above arrangement, the push rod 18 can be driven, and the power transmitted to the second transmission member 16 can be controlled through the separation coupling 17. The separation coupling 17 can also facilitate the installation and removal of the equipment at both ends of the separation coupling 17.

[0078] Embodiment 2:

[0079] The embodiment of the present invention provides a spent fuel assembly processing system for processing spent fuel assemblies. The spent fuel assembly processing system includes a spent fuel assembly separation device and a rod disassembly device in Example 1. The spent fuel assembly separation device is used to separate the fuel rods inside the spent fuel assembly and transport the separated fuel rods to the rod transfer assembly 1 of the rod disassembly device.

[0080] The spent fuel assembly separation device can remove the outer sleeve of the spent fuel assembly, making it easier for the rod disassembly device to handle the fuel rods.

[0081] The spent fuel assembly processing system in this embodiment separates the fuel rods inside the spent fuel assembly and then shreds and disintegrates the fuel rods, which can avoid the short-segment clumping phenomenon caused by using a shearing machine to directly shear the spent fuel assembly with a stainless steel outer sleeve in the prior art, thereby facilitating the implementation of subsequent processes in the spent fuel assembly processing process.

[0082] Embodiment 3:

[0083] An embodiment of the present invention provides a rod disassembly method, which adopts the rod disassembly device in Example 1, and the method includes: conveying the rod 2 to the rod transfer component 1, and after the rod transfer component 1 receives the rod 2, the single rod 2 is transferred to the shredding and disassembly component 3; the rod 2 is cut by the shredding and disassembly component 3 and then shredded into small segments.

[0084] Therefore, the bar material transfer assembly 1 can transfer each bar material to the shredding and disintegration assembly 3 in turn, avoid interference between multiple bars, and realize the shredding and disintegration of the bar material 2 in the shredding and disintegration assembly 3.

[0085] 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 bar disassembly device, characterized in that: include: A bar material transfer assembly (1) is used to receive the bar materials (2) and transfer the single bar material (2) to the shredding and disintegration assembly (3); and, The shredding and disintegrating component (3) is arranged opposite to the bar material transfer component (1) and is used to cut the bar material (2) transferred into the inside thereof and then shred it into small sections.

2. The bar disassembling device according to claim 1, characterized in that: The tearing and disintegrating component (3) comprises: Housing (4); A clamp (5) is arranged on the inner side of the shell (4) and is used to clamp the bar (2); the bar (2) passes through the clamp (5) after entering the shell (4); a first cutter (6) rotatably mounted on the housing (4) and located inside the fixture (5) for cutting off the bar (2) passing through the fixture (5); and The second cutter (7) is rotatably disposed in the housing (4) and is located below the first cutter (6), and is used to tear the bar material (2) cut by the first cutter (6) into small pieces.

3. The bar disassembling device according to claim 2, characterized in that: The tearing and disintegrating component (3) also includes: a first driving member (8); and, A first transmission member (9) has one end connected to the first driving member (8) and the other end connected to the first tool (6) and the second tool (7) respectively, and is used to drive the first tool (6) and the second tool (7) to rotate respectively.

4. The bar disassembling device according to claim 2, characterized in that: The shredding and disintegrating assembly (3) further comprises: a guide baffle (10); The guide baffle (10) is arranged between the first tool (6) and the second tool (7) and is used to guide the bar (2); the bar (2) cut by the first tool (6) slides into the second tool (7) under the guidance of the guide baffle (10).

5. The bar disassembling device according to claim 2, characterized in that: The bar material transfer assembly (1) comprises: A feeding bin (11) is used to accommodate the bar material (2); the feeding bin (11) has a discharge port (11A), and the discharge port (11A) is opposite to the shell (4) of the shredding and disintegration component (3); a guide rail (19) is arranged inside the feeding bin (11), and the bar material (2) slides onto the guide rail (19) after entering the feeding bin (11); and, The second driving member (12) is arranged on the feeding bin (11) and is used to drive the bar material (2) on the guide rail (19) to enter the shell (4) of the shredding and disintegrating assembly (3) through the discharge port (11A).

6. The bar disassembling device according to claim 5, characterized in that: The feeding side of the feeding bin (11) is provided with a sealing cover plate (13) which can be opened and closed; The bar material transfer assembly (1) further comprises: A third driving member (14), fixed on the feeding bin (11), and used for driving the sealing cover plate (13) to open and close; a counter, arranged on the feeding bin (11), for detecting the number of bars (2) falling into the feeding bin (11); and, The controller is electrically connected to the counter and the third driving member (14) respectively, and is used to control the third driving member (14) to drive the sealing cover plate (13) to open and close according to the number of rods (2) falling into the feeding bin (11).

7. The bar disassembling device according to claim 6, characterized in that: The bottom plate of the feeding bin (11) can be raised and lowered, and the guide rail (19) is arranged on the bottom plate; The bar material transfer assembly (1) further comprises a lifting assembly (15); The lifting assembly (15) is arranged below the feeding bin (11) and connected to the bottom plate of the feeding bin (11), and is used to drive the bottom plate of the feeding bin (11) to rise and fall, thereby driving the bar material (2) on the bottom plate to rise and fall; The controller is also electrically connected to the lifting assembly (15), and is also used to control the lifting assembly (15) to drive the bottom plate to rise and fall according to the number of rods (2) falling into the feeding bin (11).

8. The bar disassembling device according to claim 5, characterized in that: The second driving member (12) comprises: A push rod (18), arranged in the feeding bin (11), used for pushing the bar material (2) on the guide rail (19) to move; A second transmission member (16), one end of which is connected to the push rod (18), and the other end of which is connected to the first end of the split coupling (17); Split coupling (17); The power member is connected to the second end of the separation coupling (17) and is used to drive the separation coupling (17) to rotate, so as to drive the push rod (18) to move through the separation coupling (17) and the second transmission member (16).

9. A spent fuel assembly processing system, characterized in that: include: A spent fuel assembly separation device, used to separate the fuel rods inside the spent fuel assembly and transport the separated fuel rods to a rod transfer assembly (1) of a rod disassembly device; and, The bar disassembling device according to any one of claims 1 to 8.

10. A bar disassembly method, characterized in that: Using the bar disassembly device according to any one of claims 1 to 8, the method comprises: The bar material (2) is transported to the bar material transfer component (1), and after the bar material transfer component (1) receives the bar material (2), the single bar material (2) is transferred to the shredding and disintegration component (3); The bar material (2) is cut and then shredded into small pieces by a shredding and disintegrating assembly (3).

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