Cathode and anode replacement system based on plasma high-temperature melting process

Abstract

The invention provides a cathode and anode replacement system based on a plasma high-temperature melting process, and belongs to the technical field of plasma torches, the cathode and anode replacement system comprises a first-layer conveying channel, a second-layer conveying channel, a third-layer conveying channel and a fourth-layer conveying channel, the cover taking and sealing assembly is located on the first-layer conveying channel; the lifting mechanism is used for lifting the packaging box to the second-layer conveying channel or the third-layer conveying channel; one end of the second-layer conveying channel or one end of the third-layer conveying channel is provided with the feeding assembly and the pole changing assembly, the feeding assembly is located between the pole changing assembly and the feeding assembly, and by arranging the second-layer conveying channel or the third-layer conveying channel, cathode or anode replacement can be conducted on the melting furnace and the combustion furnace. The replacement of the cathode or the anode of the melting furnace and the combustion furnace is mutually independent and can be simultaneously carried out, and secondly, the automatic taking and transferring of the cathode and the anode can be automatically completed by arranging the feeding assembly, the loading assembly and the anode replacement assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of plasma torches, and in particular is an anode and cathode replacement system based on a plasma high-temperature melting process. Background Art

[0002] A plasma torch is a device used to generate a directed flow of plasma. Plasma jets can be used for applications such as plasma cutting, plasma arc welding, plasma spraying, and plasma gasification for waste treatment.

[0003] The plasma high-temperature melting process of the main process system of the advanced waste treatment center of the nuclear power plant includes a plasma high-temperature pyrolysis melting furnace and a plasma combustion furnace. Both the plasma high-temperature pyrolysis melting furnace and the plasma combustion furnace are equipped with plasma torches for melting and combustion. During normal use, the plasma torch needs to be repaired or replaced. However, due to the problem of nuclear radiation, the cathode and anode in the plasma torch cannot be replaced manually. Therefore, it is necessary to develop a plasma torch anode and cathode replacement system. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide an anode and cathode replacement system based on a plasma high-temperature melting process.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a cathode and anode replacement system based on plasma high temperature melting process, comprising: A conveyor belt, wherein the conveyor belt is used to convey packaging boxes; A cover removal assembly, which is located on a conveyor path on the first floor and is used to remove or cover the upper cover of the packaging box; A lifting mechanism, the lifting mechanism is used to lift the packaging box to the second-layer conveyor path or the third-layer conveyor path, and the second-layer conveyor path and the third-layer conveyor path are used to transport the packaging box; A loading assembly, one end of the second-layer conveyor or the third-layer conveyor is equipped with a loading assembly, and the loading assembly is used to take and place the cathode or anode in the packaging box; A pole-changing assembly is installed on one side of the second-layer conveyor or the third-layer conveyor, and the pole-changing assembly is used to replace the cathode or anode in the plasma torch in the melting furnace and the combustion furnace; A feeding assembly is located between the pole-changing assembly and the loading assembly, and is used to transport the cathode or the anode.

[0006] As a further improvement scheme: the pole changing assembly includes a linear moving assembly, a moving rod, and a structural frame, a plurality of linear moving assemblies are installed on the structural frame, the output end of the linear moving assembly is connected to two moving frames, a carrying frame is rotatably installed on the moving frame, a first motor is installed on the carrying frame, a moving rod is slidably installed on the carrying frame, a transmission assembly is installed between the moving rod and the first motor, the transmission assembly is used to drive the moving rod to move linearly through the first motor, and one end of the moving rods on the two moving frames are respectively connected to a cathode tool head and an anode tool head.

[0007] As a further improvement scheme: the feeding assembly includes a moving assembly, a rotating motor, a transfer jig, and a frame structure. The moving assembly is installed on the frame structure. The output end of the moving assembly is connected to a sliding frame. The rotating motor is installed on the sliding frame. The output end of the rotating motor is connected to the transfer jig.

[0008] As a further improvement scheme: the loading assembly includes a supporting frame and a first three-axis gantry mechanism, the supporting frame is connected to the first three-axis gantry mechanism, the output end of the first three-axis gantry mechanism is connected to the cathode tool head and the anode tool head, and the first three-axis gantry mechanism is used to drive the cathode tool head and the anode tool head to move in the X, Y and Z directions.

[0009] As a further improvement scheme: the first three-axis gantry mechanism includes an X-axis motion mechanism, a Y-axis motion mechanism, and a Z-axis motion mechanism. The X-axis motion mechanism is installed on the support frame, the Y-axis motion mechanism is installed at the output end of the X-axis motion mechanism, and two Z-axis motion mechanisms are installed at the output end of the Y-axis motion mechanism. The output end of the Z-axis motion mechanism is connected to a connecting rod, and the connecting rods on the two Z-axis motion mechanisms are respectively connected to the cathode tool head and the anode tool head.

[0010] As a further improvement scheme: the cathode tool head includes a mounting flange, a connecting shaft, a spring, a cylinder, and a clamping jaw. The mounting flange is rotatably mounted with a connecting shaft, a spring is connected between the mounting flange and the cylinder, and a plurality of clamping jaws are connected to the output end of the cylinder.

[0011] As a further improvement: a positioning block is installed on the inner wall of the clamping jaw.

[0012] As a further improvement scheme: the anode tool head includes a second motor, a screw, a threaded sleeve, an expansion sleeve, an expansion shaft, and an external structural part. The output end of the second motor is connected to a screw, and the screw is threadedly connected to the threaded sleeve. The screw and the external structural part are located inside the external structural part, an expansion shaft is fixedly installed on the threaded sleeve, and an expansion shaft is installed on one end of the external structural part close to the expansion shaft.

[0013] As a further improvement scheme: the cover removal assembly includes a mounting frame, a lifting mechanism, and a horizontal positioning mechanism. The mounting frame is equipped with a lifting mechanism and a horizontal positioning mechanism. The lifting mechanism is used to lift and remove the upper cover, and the horizontal positioning mechanism is used to position the packaging box.

[0014] As a further improvement scheme: it also includes a glove box cover, a connecting conveyor path, a second three-axis gantry mechanism, a glove port, and a waste bin. The glove box cover is provided with a glove port, and the interior of the glove box cover is provided with a connecting conveyor path and a second three-axis gantry mechanism. The connecting conveyor path is used to transport the packaging boxes, and the second three-axis gantry mechanism is used to grab and maintain the cathode or anode in the packaging box or grab and place it in the waste bin.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing a two-layer conveyor path or a three-layer conveyor path, the cathode or anode of the melting furnace and the combustion furnace can be replaced respectively, and the replacement of the cathode or anode of the melting furnace and the combustion furnace is independent of each other and can be carried out simultaneously; secondly, by providing a feeding assembly, a loading assembly and a pole changing assembly, the cathode and anode can be automatically taken and transported, making the entire replacement process more automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an anode-cathode replacement system based on a plasma high-temperature melting process; Figure 2 It is a schematic diagram of a combination of a two-layer platform pole-changing component, a loading component and a feeding component of an anode-cathode replacement system based on a plasma high-temperature melting process; Figure 3 A schematic diagram of the structure of a pole-changing component of an anode-cathode replacement system based on a plasma high-temperature melting process; Figure 4 It is a schematic diagram of the cross-sectional structure of a pole-changing component of a cathode-cathode replacement system based on a plasma high-temperature melting process; Figure 5 It is a schematic diagram of the structure of a feeding component of an anode-cathode replacement system based on a plasma high-temperature melting process; Figure 6 Schematic diagram of the loading component structure of a cathode and anode replacement system based on plasma high-temperature melting process Figure 1 ; Figure 7 Schematic diagram of the loading component structure of a cathode and anode replacement system based on plasma high-temperature melting process Figure 2 ; Figure 8 A schematic diagram of the structure of a cathode tool head of an anode-cathode replacement system based on a plasma high-temperature melting process; Fig. 9 A schematic diagram of the structure of an anode tool head of an anode-cathode replacement system based on a plasma high-temperature melting process; Fig.10 Schematic diagram of the cross-sectional structure of the anode tool head of an anode-cathode replacement system based on a plasma high-temperature melting process Figure 1 ; Fig.11 Schematic diagram of the cross-sectional structure of the anode tool head of an anode-cathode replacement system based on a plasma high-temperature melting process Figure 2 ; Fig.12 A schematic diagram of the structure of a cover removal component of an anode and cathode replacement system based on a plasma high-temperature melting process; Fig.13 A schematic diagram of the glove box structure of an anode-cathode replacement system based on a plasma high-temperature melting process; Fig.14 A schematic diagram of the cross-sectional structure of a glove box for an anode-cathode replacement system based on a plasma high-temperature melting process; In the figure: 1. glove box cover; 2. first-layer conveyor; 3. lifting mechanism; 4. pole-changing assembly; 41. structural frame; 42. linear moving assembly; 43. slide rail; 44. mobile frame; 45. bearing frame; 46. first motor; 47. transmission assembly; 48. moving rod; 5. loading assembly; 51. supporting frame; 52. first three-axis gantry mechanism; 521. X-axis motion mechanism; 522. Y-axis motion mechanism; 523. connecting rod; 524. Z-axis motion mechanism; 6. feeding assembly; 61. frame structure; 62. sliding frame; 63. rotating motor; 64. transfer fixture; 65. moving assembly; 7. removing and sealing assembly; 71. mounting frame; 72. lifting mechanism; 73. horizontal positioning mechanism; 8. second-layer conveyor Conveyor path; 9. Three-layer conveyor path; 10. Load-bearing frame; 11. Melting furnace; 12. Combustion furnace; 13. Second-layer platform; 14. Third-layer platform; 15. Packing box; 16. Cathode tool head; 160. Cathode; 161. Mounting flange; 162. Connecting shaft; 163. Spring; 164. Cylinder; 165. Clamp; 166. Positioning block; 17. Anode tool head; 170. Anode; 171. Second motor; 172. Reducer; 173. External structural parts; 174. Coupling; 175. Screw; 176. Threaded sleeve; 177. Expansion sleeve; 178. Expansion shaft; 19. Display screen; 20. Automatic door; 21. Glove port; 22. Connecting conveyor path; 23. Second three-axis gantry mechanism; 24. Waste bin. DETAILED DESCRIPTION

[0017] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0018] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0019] See also Figures 1 to 14 In one embodiment, a cathode and anode replacement system based on a plasma high temperature melting process comprises: A first-layer conveyor path 2, wherein the first-layer conveyor path 2 is used to convey the packaging box 15; A cover removal assembly 7, the cover removal assembly 7 is located on a first-layer conveying path 2, and the cover removal assembly 7 is used to remove or cover the upper cover of the packaging box 15; The lifting mechanism 3 is used to lift the packaging box 15 to the second-layer conveyor 8 or the third-layer conveyor 9. The second-layer conveyor 8 and the third-layer conveyor 9 are used to transport the packaging box 15. A roller platform is arranged at the bottom of the lifting mechanism 3, which can realize the horizontal movement of the packaging box 15 inside the platform. The lifting mechanism 3 is respectively installed with 3 sets of sensors at the positions of the first-layer conveyor 2, the second-layer conveyor 8 and the third-layer conveyor 9, which can realize the precise control of the lifting function of the internal roller platform. In order to ensure the safety and stability of the descent of the lifting mechanism 3, a buffer is arranged at the bottom of the lifting mechanism 3, and a chain tensioning mechanism is arranged at the bottom of the lifting mechanism 3 to adjust the tension of the chain to ensure the smooth operation of the lifting elevator. The lifting mechanism 3 mainly adopts the principle of elevator lifting and lowering, and is mainly powered by a reduction motor. In order to better control the lifting and lowering of the elevator, a combination of a servo motor and a reduction motor is adopted.

[0020] A loading assembly 5, one end of the second-layer conveyor 8 or the third-layer conveyor 9 is equipped with a loading assembly 5, and the loading assembly 5 is used to take and place the cathode 160 or the anode 170 in the packaging box 15; A pole-changing assembly 4 is installed on one side of the second-layer conveyor 8 or the third-layer conveyor 9, and the pole-changing assembly 4 is used to replace the cathode or anode in the plasma torch in the melting furnace 11 and the combustion furnace 12; The feeding assembly 6 is located between the pole changing assembly 4 and the loading assembly 5, and is used for transporting the cathode or the anode.

[0021] In the present embodiment, a load-bearing frame 10 is also included, on which a melting furnace 11 and a combustion furnace 12 are installed. The melting furnace 11 is a plasma high-temperature pyrolysis melting furnace, and the combustion furnace 12 is a plasma combustion furnace. Both the plasma high-temperature pyrolysis melting furnace and the plasma combustion furnace are provided with plasma torches. Naturally, it is necessary to repair and replace the cathode or anode in the plasma torch. A second-layer platform 13 and a third-layer platform 14 are provided on the load-bearing frame 10. The cathode or anode of the plasma torch on the melting furnace 11 is replaced by a loading assembly 5, a pole changing assembly 4, and a feeding assembly 6 on the second-layer platform 13. The replacement process includes: The waste cathode or anode of the plasma torch is transferred to the packaging box 15, and the new cathode or anode in the packaging box 15 is transferred to the plasma torch for installation. The lifting mechanism 3 is located on one side of the load-bearing frame 10, and the second-layer platform 13 and the third-layer platform 14 are connected through the lifting mechanism 3. The second-layer platform 13 and the third-layer platform 14 are both installed with a loading component 5, a pole-changing component 4, and a feeding component 6. The first-layer conveyor 2 is installed with an automatic shielding door, which is used to block the inner and outer areas of the through-wall conveyor line. The automatic shielding door has good sealing performance. When there is through-wall conveying, the automatic shielding door is opened; when there is no conveying task, the automatic shielding door is closed. The automatic shielding door is linked with the first-layer conveyor 2 and is controlled by an automatic control system, and runs quickly and accurately.

[0022] The first-layer conveyor 2 is composed of three 90° curved rollers and a straight roller, which is responsible for transporting the packaging boxes 15 containing new cathodes and anodes from the glove box to the capping station, and sending the packaging boxes 15 to the lifting mechanism 3 after the capping; or sending the packaging boxes 15 containing old cathodes and anodes to the capping station, and sending the packaging boxes 15 containing old cathodes and anodes to the shielding door after capping, and sending the packaging boxes 15 to the glove box after the shielding door is opened. The glove box door automatically opens and the packaging boxes 15 enter the glove box.

[0023] The second-layer conveyor paths 8 are all straight-segment roller paths, which are responsible for transporting materials from the lifting mechanism 3 to the replacement system station, or from the replacement system station to the lifting mechanism 3, according to the use of the material replacement box.

[0024] The three-layer conveyor 9 is composed of a 90° curved roller and a straight roller, and its function is the same as that of the two-layer conveyor 8.

[0025] The first-layer conveyor 2, the second-layer conveyor 8, and the third-layer conveyor 9 are all provided with baffle structures, which are mainly used for guiding the packaging box 15 during transportation. The baffle structure includes a retractable guide plate, wherein the retractable length of the guide plate can be adjusted by adjusting the fixed position by adjusting the screw, thereby adjusting the width of the conveying track.

[0026] See also Figure 2 , Figure 3 , Figure 4 In one embodiment, the pole changing assembly 4 includes a linear moving assembly 42, a moving rod 48, and a structural frame 41. A plurality of linear moving assemblies 42 are installed on the structural frame 41. The output end of the linear moving assembly 42 is connected to two moving frames 44. A supporting frame 45 is rotatably installed on the moving frame 44. A first motor 46 is installed on the supporting frame 45. A moving rod 48 is slidably installed on the supporting frame 45. A transmission assembly 47 is installed between the moving rod 48 and the first motor 46. The transmission assembly 47 is used to drive the moving rod 48 to move linearly through the first motor 46. One end of the moving rod 48 on the two moving frames 44 is respectively connected to the cathode tool head 16 and the anode tool head 17.

[0027] In this embodiment, two linear motion components 42 are installed on the structural frame 41, and the two linear motion components 42 are symmetrically arranged. The linear motion components 42 adopt a high-power linear motor structure. The linear motion components 42 can also adopt a screw assembly. A slide rail 43 is provided on the structural frame 41 at a position corresponding to the linear motion component 42. The moving frame 44 is slidably connected to the slide rail 43. The transmission component 47 adopts a gear rack structure. The transmission component 47 can also adopt a linear motor. A carrier frame 45 is installed on the moving frame 44 by rotation, so that the inclination angle of the carrier frame 45 can be adjusted.

[0028] The structural frame 41 of the pole-changing assembly 4 on the second-layer platform 13 adopts an integral structure, and the structural frame 41 of the pole-changing assembly 4 on the third-layer platform 14 adopts a split structure, that is, the structural frames 41 corresponding to the two linear moving assemblies 42 are separated from each other, so that the overall debugging is easier. Considering that the linear motor itself has insufficient force strength, two slide rails 43 are added to the outside of the structural frame 41 to increase the structural force. In order to save space at the upper end, we adopt a gear rack structure design in the motion space of the Y-axis. This design has small vertical shaking and high operating accuracy.

[0029] See also Figure 5 In one embodiment, the feeding assembly 6 includes a moving assembly 65, a rotating motor 63, a transfer fixture 64, and a frame structure 61. The moving assembly 65 is installed on the frame structure 61. The output end of the moving assembly 65 is connected to a sliding frame 62. The rotating motor 63 is installed on the sliding frame 62. The output end of the rotating motor 63 is connected to the transfer fixture 64.

[0030] In this embodiment, the feeding assembly 6 is used to transfer the cathode and the anode between the loading assembly 5 and the pole changing assembly 4. The rotating motor 63 has high angular rotation accuracy and can adjust the tilt angle of the transfer fixture 64.

[0031] See also Figure 6 , Figure 7 In one embodiment, the loading assembly 5 includes a support frame 51 and a first three-axis gantry mechanism 52. The support frame 51 is connected to the first three-axis gantry mechanism 52. The output end of the first three-axis gantry mechanism 52 is connected to the cathode tool head 16 and the anode tool head 17. The first three-axis gantry mechanism 52 is used to drive the cathode tool head 16 and the anode tool head 17 to move in the X, Y and Z directions.

[0032] In this embodiment, the first three-axis gantry mechanism 52 is mainly used to take out the cathode and cathode from the packaging box 15 and place the cathode and cathode 170 in the transfer fixture 64 in sequence.

[0033] See also Figure 6 , Figure 7 In one embodiment, the first three-axis gantry mechanism 52 includes an X-axis motion mechanism 521, a Y-axis motion mechanism 522, and a Z-axis motion mechanism 524. The X-axis motion mechanism 521 is installed on the support frame 51, and the Y-axis motion mechanism 522 is installed at the output end of the X-axis motion mechanism 521. Two Z-axis motion mechanisms 524 are installed at the output end of the Y-axis motion mechanism 522. The output end of the Z-axis motion mechanism 524 is connected to a connecting rod 523, and the connecting rods 523 on the two Z-axis motion mechanisms 524 are respectively connected to the cathode tool head 16 and the anode tool head 17.

[0034] In this embodiment, the X-axis motion mechanism 521 and the Y-axis motion mechanism 522 can use a servo motor to drive the screw module to move, and the Z-axis motion mechanism 524 adopts a gear rack structure, and is driven by a servo motor plus a high-speed reducer mode. In order to meet the needs of taking the cathode and anode, we set a double-acting sub-module on the Y-axis.

[0035] See also Figure 8 In one embodiment, the cathode tool head 16 includes a mounting flange 161, a connecting shaft 162, a spring 163, a cylinder 164, and a clamp 165. The mounting flange 161 is rotatably mounted with the connecting shaft 162. A spring 163 is connected between the mounting flange 161 and the cylinder 164. A plurality of clamps 165 are connected to the output end of the cylinder 164.

[0036] In this embodiment, by fully considering the characteristics of the material to be grasped, the clamp 165 is used to grasp the recessed portion of the upper edge of the cathode 160, or the anode 170 is grasped by an expansion method, and a self-locking mechanism is designed in the cathode tool head 16 to effectively prevent the risk of the cathode 160 or the anode 170 falling due to gas and power outages.

[0037] The cylinder used is the SMC MHS3 series, which has a three-jaw centering accuracy and a wedge-shaped structure inside, which can obtain a larger clamping force; the front end of the piston is provided with an anti-collision pad design, which effectively reduces the metal impact sound when the clamp 165 is released; a force sensor is installed at the end of the cathode tool head 16, which can obtain the force value of each placement of the cathode 160 through signal feedback, helping humans to judge whether it is in place.

[0038] See also Figure 8 In one embodiment, a positioning block 166 is installed on the inner wall of the clamping jaw 165 .

[0039] In this embodiment, the grasping of the cathode 160 is mainly aimed at grasping the upper disc flange of the cathode 160. A positioning block 166 is installed on the clamp 165, which can limit the upper and lower degrees of freedom to ensure the stability of grasping. The mounting flange 161, the connecting shaft 162 and the spring 163 are combined to form an elastic clamping mechanism, which provides a clamping force for the cathode 160 after it is placed on the plasma torch to ensure that the cathode 160 is installed in place. The use of the spring 163 for clamping can avoid excessive pressure during clamping.

[0040] See also Fig. 9 , Fig.10 , Fig.11 In one embodiment, the anode tool head 17 includes a second motor 171, a screw 175, a threaded sleeve 176, an expansion sleeve 17, an expansion shaft 178, and an external structural part 173. The output end of the second motor 171 is connected to the screw 175, and the screw 175 is threadedly connected to the threaded sleeve 176. The screw 175 and the threaded sleeve 176 are located in the external structural part 173, and the expansion shaft 178 is fixedly installed on the threaded sleeve 176. The expansion shaft 178 is installed at one end of the external structural part 173 close to the expansion shaft 178.

[0041] In this embodiment, one end of the second motor 171 is connected to a reducer 172, the output end of the reducer 172 is connected to a coupling 174, and the end of the coupling 174 away from the reducer 172 is connected to a screw 175. When the screw 175 and the threaded sleeve 176 are both in the initial position, the expansion sleeve 17 is not expanded, and the anode tool head 17 is in a contracted state, which meets the size conditions for entering the interior of the plasma torch anode 170.

[0042] When the anode tool head 17 enters the specified position, the second motor 171 operates the expansion shaft 178 to extend forward, so that the expansion sleeve 17 is squeezed and expanded, and is stuck at the internal step of the anode 170, so that the anode 170 is taken out.

[0043] The main structure of the anode tool head 17 is to use a servo motor with a reducer 172 connected to a screw rod 175 through a coupling 174. The screw rod 175 is driven to rotate by the rotation of the second motor 171, thereby driving the expansion shaft 178 to expand and contract, so that the expansion sleeve 17 expands so that the anode tool head 17 can grasp the anode 170.

[0044] See also Fig.12 In one embodiment, the cover removal assembly 7 includes a mounting frame 71, a lifting mechanism 72, and a horizontal positioning mechanism 73. The mounting frame 71 is equipped with a lifting mechanism 72 and a horizontal positioning mechanism 73. The lifting mechanism 72 is used to lift and remove the upper cover, and the horizontal positioning mechanism 73 is used to position the packaging box 15.

[0045] In this embodiment, the cathode 160 and the anode 170 will be contaminated with some pollutants after being taken out. In order to prevent the surface dirt of the cathode and anode 170 from spreading in the air after entering the maintenance room, we add a movable sealing cover to the packaging box 15. When the packaging box 15 passes through the capping device, the device starts, the mechanism operates, and the movable sealing cover on the packaging box 15 is lifted. The lifting power is provided to the capping device by the lifting mechanism 72, and its main lifting power comes from the cylinder, and the lifting guide is realized by four linear bearings.

[0046] In order to ensure that pollutants will not enter the indoor air after the anode and cathode 170 waste enters the maintenance room, and in order to meet the positioning requirements of the cathode 160 and the anode 170, we designed a packaging box 15 for the transportation of the cathode 160 and the anode 170. Stainless steel handles are set on both sides of the packaging box 15 to facilitate the transportation of the material box. A movable cover is set on the material box, and a handle is installed on the movable cover. A hollow O-ring is set on the upper edge of the packaging box 15 to achieve a sealing effect. See also Fig.13 , Fig.14 In one embodiment, it also includes a glove box cover 1, a connecting conveying path 22, a second three-axis gantry mechanism 23, a glove port 21, and a waste bin 24. The glove box cover 1 is provided with a glove port 21, and the glove box cover 1 is provided with a connecting conveying path 22 and a second three-axis gantry mechanism 23. The connecting conveying path 22 is used to transport the packaging box 15, and the second three-axis gantry mechanism 23 is used to grab and maintain the cathode or anode of the packaging box 15 or grab and place it in the waste bin 24.

[0047] In this embodiment, a display screen 19 and an automatic door 20 are also provided on the glove box cover 1. The second three-axis gantry mechanism 23 is completely identical in structure to the first three-axis gantry mechanism 52. The plasma torch, cathode 160 and anode 170 are maintained and transferred by providing a glove box. A manual capping device is provided to remove the cap from the packaging box 15 containing the discarded cathode 160 and anode 170. A tool kit is also provided to assist in grabbing the cathode 160 and anode 170. A fan is also provided in the glove box cover 1 to process the equipment exhaust generated during the maintenance operation of the plasma torch (pole) and to maintain the negative pressure in the glove box to prevent radioactive substances from entering the environment.

[0048] The glove box is a workstation for manual inspection of special packaging boxes (new and old) and maintenance. It is equipped with a hoisting electric nut to facilitate workers to quickly loosen the nuts of the packaging box 15. The vacuum chamber and exhaust chamber are used to maintain the negative pressure of the glove box at -500Pa, and filter the exhaust of the equipment in the glove box to prevent radioactive substances from entering the environment. The rear is connected to the exhaust treatment system to treat the exhaust harmlessly.

[0049] The glove box serves as the processing center for the transfer and barreling of waste cathodes. To ensure the visualization of the interior of the glove box, we have set windows on both sides of the glove box and installed explosion-proof LED lights inside. To ensure that the aerosol content in the internal environment of the glove box is qualified, we have set a fan inside the glove box, and the exhaust air is connected to the environmental exhaust duct through the exhaust external pipe above the glove box. The waste barrel 24 and packaging box 15 in the glove box are both sent into the glove box from the external first-layer conveyor 2 through the connecting conveyor 22. The opening of the packaging box 15 and the waste barrel 24 in the glove box requires manual opening and closing, and the staff use radiation-resistant gloves for manual work.

[0050] Through the mobile platform equipped with the anode and cathode replacement tool head, the anode and cathode are replaced in turn from the plasma high-temperature pyrolysis melting furnace 11 and the plasma combustion furnace 12, and the taken out cathode or anode (old) is placed in the special packaging box 15; then the anode (new) and cathode (new) are installed in turn, and the cathode or anode (old) special packaging box 15 enters the lifting mechanism 3 from the third-layer platform 14 and the second-layer platform 13 through the third-layer conveying path 9 and the second-layer conveying path 8 and descends to the first-layer conveying path 2, and is transported to the glove box room through the connecting conveying path 22.

[0051] The cathode or anode (new) special packaging box 15 enters the lifting mechanism 3 from the first-layer conveyor 2 and rises to the third-layer platform 14 and the second-layer platform 13, and is then transported to the plasma high-temperature pyrolysis melting furnace 11 and the plasma combustion furnace 12 through the third-layer conveyor 9 and the second-layer conveyor 8. After the pole changing operation is completed, the packaging box 15 returns to the original route and enters the glove box. The old cathode and anode are placed in the 200L waste barrel 24 through the three-axis system in the glove box.

[0052] The special packaging box 15 containing new cathodes and anodes starts from the glove box, passes through the first floor roller conveyor, and arrives at the lifting platform after the cover is opened at the cover removal device. After coming out of the lifting platform, it is sent to the corresponding replacement system station on the second or third floor. The new cathode is taken out by the mechanical device for replacement, and the replaced old cathode is stored in the special packaging box 15 (old), and returns along the original route after it is full.

[0053] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cathode and anode replacement system based on plasma high temperature melting process, characterized in that: include: A conveyor belt, wherein the conveyor belt is used to convey packaging boxes; A cover removal assembly, which is located on a conveyor path on the first floor and is used to remove or cover the upper cover of the packaging box; A lifting mechanism, the lifting mechanism is used to lift the packaging box to the second-layer conveyor path or the third-layer conveyor path, and the second-layer conveyor path and the third-layer conveyor path are used to transport the packaging box; A loading assembly, one end of the second-layer conveyor or the third-layer conveyor is equipped with a loading assembly, and the loading assembly is used to take and place the cathode or anode in the packaging box; A pole-changing assembly is installed on one side of the second-layer conveyor or the third-layer conveyor, and the pole-changing assembly is used to replace the cathode or anode in the plasma torch in the melting furnace and the combustion furnace; A feeding assembly is located between the pole-changing assembly and the loading assembly, and is used to transport the cathode or the anode.

2. According to claim 1, a cathode and anode replacement system based on plasma high temperature melting process is characterized in that: The pole changing assembly includes a linear moving assembly, a moving rod, and a structural frame. A plurality of linear moving assemblies are installed on the structural frame. Two moving frames are connected to the output end of the linear moving assembly. A carrying frame is rotatably installed on the moving frame. A first motor is installed on the carrying frame. A moving rod is slidably installed on the carrying frame. A transmission assembly is installed between the moving rod and the first motor. The transmission assembly is used to drive the moving rod to move linearly through the first motor. One end of the moving rods on the two moving frames is respectively connected to a cathode tool head and an anode tool head.

3. The anode and cathode replacement system based on plasma high temperature melting process according to claim 1 is characterized in that: The feeding assembly includes a moving assembly, a rotating motor, a transfer fixture, and a frame structure. The moving assembly is installed on the frame structure. The output end of the moving assembly is connected to a sliding frame. The rotating motor is installed on the sliding frame. The output end of the rotating motor is connected to the transfer fixture.

4. The anode and cathode replacement system based on plasma high temperature melting process according to claim 1 is characterized in that: The feeding assembly includes a supporting frame and a first three-axis gantry mechanism. The supporting frame is connected to the first three-axis gantry mechanism. The output end of the first three-axis gantry mechanism is connected to a cathode tool head and an anode tool head. The first three-axis gantry mechanism is used to drive the cathode tool head and the anode tool head to move in the X, Y and Z directions.

5. The anode-cathode replacement system based on plasma high-temperature melting process according to claim 4 is characterized in that: The first three-axis gantry mechanism includes an X-axis motion mechanism, a Y-axis motion mechanism, and a Z-axis motion mechanism. The X-axis motion mechanism is installed on the support frame, and the Y-axis motion mechanism is installed on the output end of the X-axis motion mechanism. Two Z-axis motion mechanisms are installed on the output end of the Y-axis motion mechanism. The output end of the Z-axis motion mechanism is connected to a connecting rod, and the connecting rods on the two Z-axis motion mechanisms are respectively connected to the cathode tool head and the anode tool head.

6. A cathode and anode replacement system based on a plasma high temperature melting process according to any one of claims 1 to 5, characterized in that: The cathode tool head comprises a mounting flange, a connecting shaft, a spring, a cylinder and clamping jaws. The mounting flange is rotatably mounted with the connecting shaft. A spring is connected between the mounting flange and the cylinder. The output end of the cylinder is connected with a plurality of clamping jaws.

7. The anode and cathode replacement system based on plasma high temperature melting process according to claim 6, characterized in that: A positioning block is installed on the inner side wall of the clamping jaw.

8. A cathode and anode replacement system based on a plasma high temperature melting process according to any one of claims 1 to 5, characterized in that: The anode tool head includes a second motor, a screw, a threaded sleeve, an expansion sleeve, an expansion shaft, and an external structural part. The output end of the second motor is connected to a screw, the screw is threadedly connected to the threaded sleeve, the screw and the external structural part are located inside the external structural part, an expansion shaft is fixedly installed on the threaded sleeve, and an expansion shaft is installed at one end of the external structural part close to the expansion shaft.

9. The anode and cathode replacement system based on plasma high temperature melting process according to claim 1, characterized in that: The cover removal assembly comprises a mounting frame, a lifting mechanism and a horizontal positioning mechanism. The lifting mechanism and the horizontal positioning mechanism are installed on the mounting frame. The lifting mechanism is used to lift and remove the upper cover, and the horizontal positioning mechanism is used to position the packaging box.

10. The anode and cathode replacement system based on plasma high temperature melting process according to claim 1, characterized in that: It also includes a glove box cover, a connecting conveyor path, a second three-axis gantry mechanism, a glove opening, and a waste bin. The glove box cover is provided with a glove opening, and the interior of the glove box cover is provided with a connecting conveyor path and a second three-axis gantry mechanism. The connecting conveyor path is used to transport the packaging boxes, and the second three-axis gantry mechanism is used to grab and maintain the cathode or anode in the packaging box or grab and place it in the waste bin.

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