Demolition devices and demolition equipment

Abstract

The present application relates to a dismantling device and dismantling equipment. The dismantling device includes a main body, a driving member, a first drill bit, an alignment member, and a second drill bit. The driving member is fixed to the main body, and the first drill bit is connected to the driving member. The driving member is configured to drive the first drill bit to move relative to the main body along a first direction. The alignment member is used to align the first drill bit with the fixed structure on the graphite block. The second drill bit is connected to the main body. When the dismantling device is in a demolition mode, the first drill bit is aligned with the fixed structure on the graphite block, and the driving member drives the first drill bit to feed along the first direction so that the first drill bit can destroy the fixed structure. When the dismantling device is in a tensioning mode, the main body drives the first drill bit and the second drill bit to feed along the first direction so that the first drill bit and the second drill bit can drill into the graphite block and be tensioned and fixed to the graphite block. The above-mentioned dismantling device can achieve stable grasping of graphite blocks with high density and large weight, solving the problem of difficult nuclear graphite dismantling.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear facility decommissioning and demolition, and in particular to a demolition device for dismantling nuclear graphite in a reactor pit. Background Art

[0002] In the nuclear industry, graphite is used as a moderator and reflector material in nuclear reactors. Prolonged neutron irradiation in the nuclear graphite in these reactors can activate impurities and cause them to become radioactive. Exposure to fast neutrons can also cause the nuclear graphite itself to swell, deform, bend, or mechanically fracture, complicating subsequent removal. Following the decommissioning of a nuclear facility, this discarded nuclear graphite needs to be removed. Currently, there are no dismantling devices designed specifically for nuclear graphite removal, and general-purpose grippers such as manipulator grippers and robotic grippers are not suitable for this application, making nuclear graphite removal difficult. Summary of the Invention

[0003] Based on this, it is necessary to provide a dismantling device and a dismantling equipment for dismantling nuclear graphite in the reactor pit in order to solve the problem of difficulty in dismantling nuclear graphite.

[0004] According to a first aspect of the present application, an embodiment of the present application provides a dismantling device for dismantling nuclear graphite in a reactor pit, wherein the nuclear graphite includes a plurality of graphite blocks, and adjacent graphite blocks are fixed together by a fixing structure, and the dismantling device includes:

[0005] Main body;

[0006] a driving member and a first drill bit, wherein the driving member is fixed to the main body, the first drill bit is connected to the driving member, and the driving member is configured to drive the first drill bit to move relative to the main body along a first direction;

[0007] an aligning member, used for aligning the first drill bit with the fixing structure on the graphite block;

[0008] a second drill bit connected to the main body;

[0009] The demolition device has a demolition mode and a tensioning mode;

[0010] The demolition device is in the demolition mode, the first drill bit is aligned with the fixed structure on the graphite block, and the driving member drives the first drill bit to feed along the first direction so that the first drill bit can destroy the fixed structure;

[0011] When the removal device is in the tensioning mode, the main body drives the first drill bit and the second drill bit to feed along the first direction, so that the first drill bit and the second drill bit can drill into the graphite block and be tensioned and fixed to the graphite block.

[0012] In one embodiment, the removal device further comprises a support member;

[0013] The support member is elastically connected to the main member so that the support member can elastically abut against the graphite block;

[0014] The support member is configured to allow the first drill bit and the second drill bit to pass through along the first direction.

[0015] In one embodiment, the removal device further includes a telescopic member;

[0016] The telescopic member is configured to be telescopic along the first direction, and two ends of the telescopic member are respectively connected to the support member and the main body member.

[0017] In one embodiment, the telescopic member has a locked state and an unlocked state;

[0018] The demolition device is in the demolition mode, the telescopic member is in the locked state, and the telescopic member is incompressible along the first direction, so that when the driving member drives the first drill bit to feed along the first direction, the support member and the main member are relatively fixed in the first direction;

[0019] The dismantling device is in the tensioning mode, the telescopic part is in the unlocked state, and the telescopic part is compressible along the first direction so that the support part can approach the main part along the first direction during the process of the main part driving the first drill bit and the second drill bit to feed along the first direction.

[0020] In one embodiment, the telescopic member includes an outer cylinder and an inner cylinder;

[0021] The outer cylinder is slidably sleeved on the inner cylinder along the first direction;

[0022] One of the outer cylinder and the inner cylinder is connected to the main body, and the other one of the outer cylinder and the inner cylinder is connected to the support member;

[0023] The dismantling device further includes an elastic unit disposed inside the outer cylinder and the inner cylinder.

[0024] In one embodiment, the alignment member includes a positioning pin provided on a side of the support member facing away from the main body member.

[0025] In one embodiment, the removal device further includes a vacuum suction cup disposed on the main body.

[0026] In one embodiment, the first drill bit and the second drill bit are evenly arranged around the circumference of the vacuum chuck.

[0027] According to a second aspect of the present application, an embodiment of the present application further provides a dismantling device, comprising a control device, a transfer device, and the above-mentioned dismantling device;

[0028] The control device is connected to the main body to drive the main body to move;

[0029] The transfer device is used to store and transfer the graphite blocks removed from the nuclear graphite by the removal device.

[0030] In one embodiment, the removal device further includes a connection conversion head provided on the main body;

[0031] The main body is detachably connected to the control device by means of the connection conversion head.

[0032] In the above-mentioned demolition device and demolition equipment, the demolition device includes at least a main body, a driving member, a first drill bit, an alignment member, and a second drill bit. In the demolition mode, the demolition device realizes the independent feeding of the first drill bit through the driving member. After the first drill bit successfully destroys a fixed structure, the first drill bit is aligned with the next fixed structure through the alignment member, and the next demolition action can be performed, which is not limited by the number of fixed structures and the spacing distance between different fixed structures. In this way, the independently fed first drill bit, on the one hand, makes the demolition device highly versatile and can meet the demolition needs of different graphite blocks, and on the other hand, makes the structure of the demolition device compact, which is convenient for flexible operation in a narrow reactor pit. In the tightening mode, the demolition device realizes the synchronous feeding of the first drill bit and the second drill bit through the main body, realizes tightening and fixing by drilling, and can achieve gripping by using one surface of the graphite block, and can exert a large gripping force, thereby achieving stable gripping of high-density and heavy-weight graphite blocks, solving the problem of difficult nuclear graphite demolition. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a dismantling device in one embodiment of the present application;

[0034] Figure 2 This is a schematic diagram of the structure of a single graphite block in a certain nuclear graphite;

[0035] Figure 3 for Figure 1 A schematic diagram of the structure of the demolition device in the demolition mode;

[0036] Figure 4 for Figure 1 A schematic diagram of the structure of the removal device in the tensioning mode;

[0037] Figure 5 for Figure 1 A schematic structural diagram of the dismantling device shown in another perspective.

[0038] Description of reference numerals:

[0039] 1. Graphite block; 101. Pin hole; 102. Pipe hole;

[0040] 100. Dismantling device; 10. Main body; 11. Fixing plate; 12. Frame; 20. Driving member; 30. First drill bit; 40. Second drill bit; 50. Support member; 51. Through hole; 60. Telescopic member; 61. Outer cylinder; 62. Inner cylinder; 70. Vacuum suction cup; 80. Connecting conversion head. DETAILED DESCRIPTION

[0041] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0044] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0045] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0047] In the nuclear industry, graphite is used as a moderator and reflector material in nuclear reactors. Prolonged neutron irradiation in these reactors can activate impurities in the graphite, making it radioactive. Exposure to fast neutrons can also cause the graphite itself to swell, deform, bend, or mechanically fracture, complicating subsequent removal. Following decommissioning of nuclear facilities, this discarded graphite must be removed. Because the size, shape, structure, and material of graphite in reactors vary from country to country, the methods used for removal also vary, including underwater cutting, mechanical gripping, vacuum suction, robotic removal, and manual removal.

[0048] In the reactor pit, nuclear graphite is made up of multiple graphite blocks. Adjacent graphite blocks are fixed to each other by fixing structures such as mortise and tenon structures or graphite pins. Graphite blocks in the same layer are densely arranged, and different layers are stacked layer by layer to form a dense whole. Therefore, when dismantling nuclear graphite, it is necessary to consider issues such as the adhesion between graphite blocks and the dismantling of fixed structures. In addition, the high density and weight of graphite blocks, the obstruction of the sides of the graphite blocks, the small contact area, and the limited operating space in the reactor pit are also issues that need to be considered in the dismantling of nuclear graphite. There is currently no dismantling device designed for nuclear graphite dismantling, and general grippers such as manipulator grippers and robot grippers are not suitable for use in nuclear graphite dismantling scenarios, which makes nuclear graphite dismantling difficult.

[0049] For example, some related robotic grippers utilize multiple suction cups to hold a loaded sheet material. Due to the performance limitations of the vacuum cups, these devices can only be used for lightweight flat panels, but they are insufficient for gripping objects like graphite blocks, which are dense, heavy, and have a relatively small contact area. Furthermore, these devices are bulky, making them difficult to deploy within the confined space of a reactor pit.

[0050] For example, some related robotic grippers use a combination of mechanical gripping and vacuum suction cups to grasp objects. Because multiple suction cups are distributed across different gripping arms, their spatially dispersed arrangement limits the suction performance of a single vacuum cup. Furthermore, this device requires gripping objects from both sides, making it unsuitable for situations like the reactor pit where graphite blocks are obscured on all sides by other graphite blocks.

[0051] In response to the problems existing in the above-mentioned related technologies, the embodiments of the present application provide a dismantling device and a dismantling equipment for dismantling nuclear graphite in a reactor pit.

[0052] Figure 1 A schematic structural diagram of a dismantling device in one embodiment of the present application is shown; Figure 2 A schematic diagram of the structure of a single graphite block in a certain nuclear graphite is shown.

[0053] In some embodiments, see Figure 1 and Figure 2 The embodiment of the present application provides a dismantling device 100 for dismantling nuclear graphite (not shown) in a reactor pit. The nuclear graphite includes a plurality of graphite blocks 1, and adjacent graphite blocks 1 are fixed together by means of a fixing structure. Figure 2 In the embodiment shown, the fixing structure is a graphite pin, and a plurality of pin holes 101 are provided at intervals on the graphite block 1. Adjacent graphite blocks 1 are fixedly connected by the graphite pins in the pin holes 101. In other embodiments, the fixing structure may also be a mortise and tenon structure.

[0054] The dismantling device 100 includes a main body 10, a driving member 20, a first drill bit 30, an alignment member (not shown) and a second drill bit 40. The driving member 20 is fixed to the main body 10, the first drill bit 30 is connected to the driving member 20, and the driving member 20 is configured to be able to drive the first drill bit 30 to move relative to the main body 10 along a first direction (direction a in the figure). The alignment member is used to align the first drill bit 30 with the fixed structure on the graphite block 1. The second drill bit 40 is connected to the main body 10. Among them, the dismantling device 100 has a demolition mode and a tensioning mode. When the dismantling device 100 is in the demolition mode, the first drill bit 30 is aligned with the fixed structure on the graphite block 1, and the driving member 20 drives the first drill bit 30 to feed along the first direction so that the first drill bit 30 can destroy the fixed structure. The removal device 100 is in the tensioning mode, and the main body 10 drives the first drill bit 30 and the second drill bit 40 to feed along the first direction, so that the first drill bit 30 and the second drill bit 40 can drill into the graphite block 1 and be tensioned and fixed to the graphite block 1.

[0055] The specific operation of the removal device 100 will be described below. During the removal of a single graphite block 1, the removal device 100 is first activated in its breaking mode, causing the first drill bit 30 to destroy the fixing structure between adjacent graphite blocks 1, thereby reducing the resistance during the removal of the graphite block 1. After all the fixing structures on a single graphite block 1 have been destroyed, the removal device 100 is activated in its tightening mode, allowing the first drill bit 30 and the second drill bit 40 to drill into the graphite block 1 and tighten and secure it to the graphite block 1. Finally, the graphite block 1 is removed by moving the main body 10, and then the first drill bit 30 and the second drill bit 40 are reversed to remove the graphite block 1, thereby completing the removal of the single graphite block 1.

[0056] In the demolition mode, the above-mentioned demolition device 100 realizes the independent feeding of the first drill bit 30 through the driving member 20. After the first drill bit 30 successfully destroys a fixed structure, the first drill bit 30 is aligned with the next fixed structure through the positioning member, and the next demolition action can be performed, which is not limited by the number of fixed structures and the spacing distance between different fixed structures. In this way, the independent feeding of the first drill bit 30 makes the demolition device 100 highly versatile and can meet the demolition needs of different graphite blocks 1. On the other hand, it makes the structure of the demolition device 100 compact and convenient for flexible operation in a narrow reactor pit. In the tensioning mode, the demolition device 100 realizes the synchronous feeding of the first drill bit 30 and the second drill bit 40 through the main body 10, and realizes tensioning and fixing by drilling. Grasping can be achieved by using one surface of the graphite block 1, and the grasping force that can be applied is large, thereby achieving stable grasping of the high-density and heavy-weight graphite block 1, solving the problem of difficult nuclear graphite demolition.

[0057] It should be noted that when the fixing structure is a graphite pin, the alignment member is used to align the first drill bit 30 with the pin hole 101 in the graphite block. Optionally, the outer diameter of the first drill bit 30 is slightly smaller than the inner diameter of the pin hole 101. This allows the first drill bit 30 to penetrate the pin hole 101 directly before contacting the graphite pin, without requiring expansion. After drilling through the graphite pin, the first drill bit 30 can also be directly withdrawn from the pin hole 101 without reversing and unscrewing. This facilitates the rapid demolition process while reducing energy loss.

[0058] Optionally, the driving member 20 may adopt a hydraulic cylinder, an electric cylinder, a pneumatic cylinder, an electric push rod, a gear rack, a worm gear, etc., which can drive the first drill bit 30 to move relative to the main body 10 along the first direction.

[0059] Figure 3 Shown Figure 1 A schematic diagram of the structure of the demolition device in the demolition mode; Figure 4 Shown Figure 1 Schematic diagram of the structure of the removal device in the tensioning mode.

[0060] In some embodiments, see Figure 1 、 Figure 3 and Figure 4 The removal device 100 further includes a support member 50, which is elastically connected to the main member 10, enabling it to elastically abut against the graphite block 1. The support member 50 is configured to allow the first drill bit 30 and the second drill bit 40 to pass through in a first direction. This maintains surface contact between the removal device 100 and the graphite block 1 via the support member 50, facilitating stable feeding of the first and second drill bits 30, 40, thereby improving the stability of the removal device 100 during operation.

[0061] Specifically, the support member 50 is provided with a through hole 51 for the first drill bit 30 and the second drill bit 40 to pass through. Figure 3 The support member 50 elastically contacts the graphite block 1, and the driving member 20 controls the independent feeding of the first drill bit 30. The first drill bit 30 enters the graphite block 1 through the through hole 51 to destroy the fixed structure on the graphite block 1. During this process, the distance between the main member 10 and the support member 50 remains basically unchanged (the support member 50 may shake slightly due to vibration). When the dismantling device 100 is in the tensioning mode, see Figure 4 The support member 50 elastically abuts against the graphite block 1, and the main body 10 controls the synchronous feeding of the first drill bit 30 and the second drill bit 40. The first drill bit 30 and the second drill bit 40 drill into the graphite block 1 through the through hole 51 to be tightened and fixed with the graphite block 1. During this process, the main body 10 approaches the graphite block 1 along the first direction.

[0062] In some embodiments, the removal device 100 further includes a telescopic member 60. The telescopic member 60 is configured to extend and retract along a first direction, with its ends connected to the support member 50 and the main member 10, respectively. As the support member 50 and the main member 10 move toward and away from each other, the telescopic member 60 can guide the support member 50 along the first direction, thereby ensuring stable advancement and withdrawal of the first drill bit 30 and the second drill bit 40, further ensuring operational stability of the removal device 100.

[0063] In some embodiments, the telescopic member 60 has a locked state and an unlocked state. When the demolition device 100 is in the demolition mode, the telescopic member 60 is in the locked state and is incompressible along the first direction. This allows the support member 50 and the main body 10 to be relatively fixed in the first direction while the driver 20 drives the first drill bit 30 to advance in the first direction. When the demolition device 100 is in the tensioning mode, the telescopic member 60 is in the unlocked state and is compressible along the first direction. This allows the support member 50 to approach the main body 10 along the first direction while the main body 10 drives the first drill bit 30 and the second drill bit 40 to advance in the first direction.

[0064] It can be understood that in the demolition mode, the first drill bit 30 is fed independently with the help of the driving member 20, and the position of the main body 10 in the first direction remains unchanged. By locking the telescopic member 60 to make it incompressible along the first direction, the distance between the main body 10 and the support member 50 is also kept unchanged, avoiding the support member 50 from shaking due to vibration, and further ensuring the stable and independent feeding of the first drill bit 30 in the demolition mode.

[0065] In some embodiments, see Figure 4 and Figure 5 The telescopic member 60 includes an outer cylinder 61 and an inner cylinder 62, the outer cylinder 61 is slidably sleeved on the inner cylinder 62 along a first direction, one of the outer cylinder 61 and the inner cylinder 62 is connected to the main body 10, and the other of the outer cylinder 61 and the inner cylinder 62 is connected to the support member 50. The dismantling device 100 also includes an elastic unit (not shown) arranged inside the outer cylinder 61 and the inner cylinder 62. Specifically, as the inner cylinder 62 gradually enters the outer cylinder 61, the support member 50 can approach the main body 10 along the first direction. At the same time, the elastic unit located inside the outer cylinder 61 and the inner cylinder 62 is also compressed to generate elastic force, so that the support member 50 can elastically abut against the graphite block 1. In this way, while realizing the elastic connection between the support member 50 and the main body 10, the elastic unit is integrated into the interior of the telescopic member 60, which helps to make the dismantling device 100 compact and convenient for flexible operation in a narrow reactor pit.

[0066] Alternatively, the elastic unit may be a coil spring, a gas spring, a hydraulic spring, etc. The telescopic member 60 and the elastic unit as a whole may be a gas pressure rod, a hydraulic rod, etc. Of course, in other embodiments, independent elastic connectors and the telescopic member 60 may also be used, and this application does not limit this.

[0067] In some embodiments, the alignment member includes a positioning pin (not shown) disposed on the side of the support member 50 facing away from the main member 10. In this way, the positioning pin can cooperate with the hole or groove on the graphite block 1 to achieve precise positioning of the first drill bit 30 and the fixed structure. For example, continue to see Figure 2 The graphite block 1 is provided with a pin hole 101 and a through-tube hole 102. The positioning pin can be positioned with the pin hole 101 or the through-tube hole 102 to achieve precise positioning. In other embodiments, the positioning member can also be positioned by laser positioning or ultrasonic positioning, which is not limited in this application.

[0068] In some embodiments, see Figure 1 、 Figure 3 and Figure 4 The dismantling device 100 further includes a vacuum suction cup 70 disposed on the main body 10. This allows, on the one hand, for the first drill bit 30 to destroy the fixed structure and the first and second drill bits 30 and 40 to drill the graphite block 1, the vacuum suction cup 70 to absorb the graphite dust generated by the demolition and drilling operations, thereby suppressing the spread of radioactive graphite dust during operation and reducing diffuse pollution. On the other hand, as the main body 10 approaches the graphite block 1 along the first direction, the vacuum suction cup 70 can adhere to the surface of the graphite block 1, achieving dual fixation through drilling, tensioning, and vacuum absorption, further increasing the gripping force and ensuring stable gripping of the graphite block 1.

[0069] Figure 5 Shown Figure 1 A schematic structural diagram of the dismantling device shown in another perspective.

[0070] In some embodiments, see Figure 5 The first drill bit 30 and the second drill bit 40 are evenly arranged around the vacuum chuck 70. This arrangement, on the one hand, allows the centrally located vacuum chuck 70 to better absorb radioactive graphite dust, thereby effectively suppressing its spread. On the other hand, this arrangement effectively utilizes the installation space on the main body 10, making the dismantling device 100 compact and easily maneuverable in the narrow reactor pit.

[0071] Specific to Figure 5In the illustrated embodiment, there are two second drill bits 40, with the first drill bit 30 and the two second drill bits 40 evenly distributed in a triangular pattern around the vacuum chuck 70. This ensures stable force on the graphite block 1 and facilitates reliable gripping of the graphite block 1. Furthermore, there are three telescopic members 60, with the first drill bit 30 and the two second drill bits 40 distributed in a regular triangle pattern, and the three telescopic members 60 distributed in an inverted triangle pattern. This helps to make the dismantling device 100 compact and facilitates flexible operation in the narrow reactor pit.

[0072] In some embodiments, see Figure 3 and Figure 4 The main body 10 includes a fixed plate 11 and a frame 12 connected to each other. The fixed plate 11 is used to mount the second drill bit 40, the telescopic member 60, and the vacuum cup 70, ensuring that these components move synchronously in the first direction. The fixed plate 11 is also configured to allow the first drill bit 30 to pass through in the first direction. The frame 12 is used to mount the driver 20, as well as air pipes, electrical circuits, and other structures not shown.

[0073] Based on the same inventive concept, an embodiment of the present application further provides a dismantling device, comprising a control device (not shown), a transfer device (not shown), and the aforementioned dismantling device 100. The control device is connected to the main body 10 to drive the main body 10 to move. The transfer device is used to store and transfer the graphite blocks 1 removed from the nuclear graphite by the dismantling device 100.

[0074] Alternatively, the control device may employ a multi-axis robotic arm, a multi-head gantry support, a crane, or the like, to move the main body 10 to thereby achieve movement of the entire dismantling device 100. The transfer device may employ a combination of a waste transfer box and a crane. Specifically, the dismantling equipment operates as follows: the empty waste transfer box is hoisted into the reactor pit using the crane, the graphite blocks 1 in the nuclear graphite are removed using the dismantling device 100, the dismantling device 100 is moved by the control device, the removed graphite blocks 1 are removed and placed in the waste transfer box until the waste transfer box is full, and the full waste transfer box is hoisted out of the reactor pit using the crane.

[0075] In some embodiments, see Figure 1 The removal device 100 also includes a connector adapter 80 mounted on the main body 10. The main body 10 is removably connected to the control device via the connector adapter 80, thereby enabling installation and replacement of the removal device 100 with the control device. The specific structure and operating principle of the connector adapter 80 are conventional in the relevant field and will not be detailed here.

[0076] In summary, in the demolition device 100 and demolition equipment provided in the embodiment of the present application, the demolition device 100 includes a main body 10, a driving member 20, a first drill bit 30, an alignment member, a second drill bit 40, a support member 50, a telescopic member 60, a vacuum suction cup 70 and a connection conversion head 80. In the demolition mode, the demolition device 100 realizes the independent feeding of the first drill bit 30 through the driving member 20, and aligns the first drill bit 30 with the fixed structure through the alignment member. On the one hand, the demolition device 100 has strong versatility and can meet the demolition needs of different graphite blocks 1. On the other hand, the demolition device 100 has a compact structure and can be flexibly operated in a narrow reactor pit. In the tensioning mode, the demolition device 100 realizes the synchronous feeding of the first drill bit 30 and the second drill bit 40 through the main body 10, and realizes tensioning and fixing by drilling. Grasping can be achieved by using one surface of the graphite block 1, and the grasping force that can be applied is large. The support member 50 is used to abut against the graphite block 1, and the telescopic member 60 is used to guide the support member 50 in a first direction, thereby ensuring stable feeding and withdrawal of the first drill bit 30 and the second drill bit 40. The vacuum suction cup 70 is used to absorb radioactive graphite dust and to adsorb and fix the surface of the graphite block 1. The connecting adapter 80 is used to facilitate the installation and replacement of the removal device 100 and the control device. The removal device 100 can achieve stable grasping of high-density and heavy graphite blocks 1, solving the problem of difficult nuclear graphite removal.

[0077] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of this patent shall be determined by the appended claims.

Claims

1. A dismantling device for dismantling nuclear graphite in a reactor pit, wherein the nuclear graphite comprises a plurality of graphite blocks, adjacent graphite blocks being fixed together by means of a fixing structure, characterized in that: The dismantling device comprises: Main body; a driving member and a first drill bit, wherein the driving member is fixed to the main body, the first drill bit is connected to the driving member, and the driving member is configured to drive the first drill bit to move relative to the main body along a first direction; an aligning member, used for aligning the first drill bit with the fixing structure on the graphite block; a second drill bit connected to the main body; The demolition device has a demolition mode and a tensioning mode; The demolition device is in the demolition mode, the first drill bit is aligned with the fixed structure on the graphite block, and the driving member drives the first drill bit to feed along the first direction so that the first drill bit can destroy the fixed structure; The removal device is in the tensioning mode, and the main body drives the first drill bit and the second drill bit to feed along the first direction, so that the first drill bit and the second drill bit can drill into the graphite block and be tightened and fixed to the graphite block; The dismantling device further includes a support member and a telescopic member, wherein the telescopic member is configured to be telescopic along the first direction, and two ends of the telescopic member are respectively connected to the support member and the main member; The telescopic member has a locked state and an unlocked state; The demolition device is in the demolition mode, the telescopic member is in the locked state, and the telescopic member is incompressible along the first direction, so that when the driving member drives the first drill bit to feed along the first direction, the support member and the main member are relatively fixed in the first direction; The dismantling device is in the tensioning mode, the telescopic part is in the unlocked state, and the telescopic part is compressible along the first direction so that the support part can approach the main part along the first direction during the process of the main part driving the first drill bit and the second drill bit to feed along the first direction.

2. The removal device according to claim 1, characterized in that The telescopic member includes an outer cylinder and an inner cylinder; The outer cylinder is slidably sleeved on the inner cylinder along the first direction; One of the outer cylinder and the inner cylinder is connected to the main body, and the other one of the outer cylinder and the inner cylinder is connected to the support member; The dismantling device further includes an elastic unit disposed inside the outer cylinder and the inner cylinder.

3. The removal device according to claim 1, characterized in that The alignment member includes a positioning pin arranged on a side of the support member away from the main body member.

4. The removal device according to any one of claims 1 to 3, characterized in that: The dismantling device further comprises a vacuum suction cup arranged on the main body.

5. The removal device according to claim 4, characterized in that: The first drill bits and the second drill bits are evenly arranged around the circumference of the vacuum suction cup.

6. A dismantling device comprising a control device, a transfer device and the dismantling device according to any one of claims 1 to 5; The control device is connected to the main body to drive the main body to move; The transfer device is used to store and transfer the graphite blocks removed from the nuclear graphite by the removal device.

7. The removal device according to claim 6, characterized in that The dismantling device further includes a connection conversion head provided on the main body; The main body is detachably connected to the control device by means of the connection conversion head.

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