A slag receiving device for plasma treatment of radioactive waste

Abstract

The present invention discloses a slag receiving device for treating radioactive waste with plasma, comprising a treatment box, a treatment tank installed on the left side of the top of the treatment box, and a fixed box installed on the right side of the top of the treatment box, and the present invention relates to the technical field of radioactive waste treatment machine tools. The slag receiving device for treating radioactive waste with plasma is provided with a closing mechanism. After the slag receiving is completed, the driving operation of the material pressing and closing unit is used to firstly drive the material pressing plate to flatten the waste slag carried by the slag receiving box, and then the material closing plate is moved relatively, and the sealing plate is driven to perform a closing operation synchronously, so as to realize the integrated linkage operation of flattening the waste slag after the material dropping is completed, closing the material outlet and closing the slag receiving port, so as to avoid personnel from contacting with radioactive substances, effectively improve the efficiency of slag receiving, improve the sealing after the slag receiving is completed, and avoid the problem of radioactive waste overflow.

Description

Technical Field

[0001] The invention relates to the technical field of radioactive waste treatment, in particular to a slag collecting device for plasma treatment of radioactive waste. Background Art

[0002] With the rapid development of nuclear technology, radioactive materials have been increasingly widely used in the fields of nuclear power generation, medical treatment, etc., playing an irreplaceable role in promoting the development of national economy and science and technology. While radioactive materials have made great contributions to human progress, they have inevitably brought about a large amount of radioactive waste.

[0003] Referring to the patent document, the patent name is: A device for plasma treatment of radioactive waste (patent application number: CN113436774A, patent application date: 2021.09.24). The furnace body includes a molten pool connected to its bottom, the side wall of the molten pool is a water-cooled wall, and a slag outlet is provided at the bottom, and a slag outlet is provided at the slag outlet. There are also several plasma torches located between the furnace body and the slag outlet in the molten pool. The plasma torch heats the garbage material layer in the molten pool, so as to control the temperature of medium and low-level radioactive waste, thermally decompose the organic matter in the waste into volatile matter, inhibit the migration of nuclides, and increase the life of the furnace body.

[0004] After the operation of the equipment, although the radioactive waste forms a vitreous body, it still has medium-low radioactivity, so it is necessary to load the waste slag for subsequent burial. However, there are still the following problems in the process of slag collection:

[0005] 1. Before the waste slag was dropped, its drop opening was in a closed state. However, when the material was received, the drop opening and the opening of the slag receiving box were not closed synchronously, so that the opening of the slag receiving box was not closed after the slag was received, causing the spillage of radioactive materials and the impact on personnel and the environment;

[0006] 2. After the slag box is loaded, the accumulation of medium and low-level radioactive waste will cause the height of the waste to be higher than the opening of the slag box, and when it is closed, it will cause the problem of spillage of excess radioactive waste.

[0007] To this end, the present invention provides a plasma treatment radioactive waste slag collecting device. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a slag collecting device for plasma treatment of radioactive waste, which solves the problem that in the prior slag collecting process, the synchronous closing operation of the material drop port and the opening of the slag collecting box cannot be achieved, and after the slag collecting box is loaded, the height of the medium and low radioactive waste will be higher than the opening of the slag collecting box after accumulation, and the problem of excess radioactive waste being spilled when it is closed.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plasma treatment radioactive waste slag receiving device, comprising a treatment box, a treatment tank is installed on the left side of the top of the treatment box, and a fixed box is installed on the right side of the top of the treatment box, a discharge box is installed inside the treatment box and is connected with the drop-off place of the treatment tank through a pipeline, a slag receiving box is slidably installed inside the treatment box and directly below the discharge box, a closing mechanism is provided on the top of the slag receiving box for sealing the slag port, the closing mechanism comprises symmetrical sealing plates, vertical plates are installed on the tops of the two sealing plates, and a sealing plate is provided between the opposite sides of the sealing plates. A closing assembly is provided, and sliding plates are installed on the front and rear sides of the sealing plate. A feed trough is provided on the top of the slag receiving box, and a sliding groove is provided on the groove wall of the feed trough. The sealing plate and the sliding plate are both located on the inner wall of the sliding groove to realize horizontal sliding on the left and right sides, and the vertical plate realizes the closing operation of the feed trough through the pressing and closing unit arranged in the discharge box. Actuating rods are symmetrically penetrated through the surface of the slag receiving box and located on the front and rear sides of the sliding groove and can slide relative to the slag receiving box. A limit block is installed on one end of the actuating rod inside the sliding groove, and actuating spring is sleeved on the surface of the actuating rod, and both ends of the actuating spring are fixed to the limit block and the opposite sides of the sliding groove.

[0010] Preferably, the closing assembly includes a wrapping frame installed on the right side of the left sealing plate, a snap-in plate is installed on the left side of the right sealing plate, and a groove adapted to slide with the snap-in plate is opened on the right side of the wrapping frame. When closed, the snap-in plate moves into the groove of the wrapping frame and makes the opposite sides of the two sealing plates fit in contact.

[0011] Preferably, the material pressing and closing unit includes a driving motor installed on the inner wall of a fixed box, one end of the driving motor output shaft is fixedly connected to a driving shaft through a coupling, and the surface of the driving shaft enables the auxiliary shaft to rotate on the inner wall of the fixed box through an intermittent component, the rear end of the auxiliary shaft enables the vertical shaft to rotate at the top of the inner cavity of the fixed box through a pulling component, and the bottom of the vertical shaft is provided with a control component to enable the symmetrical closing plates to move relative to each other, and the bottom of the closing plate is provided with an adjusting component to control the movement of the sealing plate, a pressing rod is sliding through the top of the discharge box, and a pressing plate is installed at the bottom of the pressing rod, and an arc ring is installed at the top of the pressing rod, and a rotating plate is installed at the front end of the driving shaft, and the convex column on the surface of the rotating plate slides in the ring groove of the arc ring and enables the arc ring to perform vertical lifting operations.

[0012] Preferably, the intermittent assembly includes a driving gear mounted on the surface of the driving shaft and an auxiliary gear mounted on the surface of the auxiliary shaft, and when the surface of the driving gear is meshed with the surface of the auxiliary gear, the driving shaft and the auxiliary shaft rotate synchronously.

[0013] Preferably, the pulling assembly includes a driving wheel and a transmission wheel. The surface of the auxiliary shaft is fixed to the driving wheel through a one-way shaft, and the driving wheel can be driven to rotate synchronously when the auxiliary shaft rotates. The transmission wheel is fixedly installed on the surface of the vertical shaft, and a pulling rope is fixedly installed at the wire grooves of the driving wheel and the transmission wheel.

[0014] Preferably, the control component includes symmetrical moving rods, a center rod is rotatably installed between one ends of the two moving rods, and a rear support plate is installed on the rear side of the discharge box, and a center rotating shaft is installed at the center of the rear side surface of the center rod and rotates with the inner wall of the rear support plate, the other end of the moving rod is rotatably connected to a connecting rod through a rotating pin, and the connecting rod is fixed to the rear side of the closing plate, a pushing block is installed on the rear side of the moving rod and at the rotating pin, the pushing block on the left side is pushed by a pneumatic component to realize the opening operation of the closing plate, and the pushing block on the right side is connected to the vertical rotating shaft through an engaging component.

[0015] Preferably, the pneumatic assembly comprises a cylinder installed inside the rear support plate, a piston rod is slidably installed inside the cylinder, and one end of the piston rod is fixed to the side surface of the push block on the left side.

[0016] Preferably, the meshing assembly includes a meshing rack installed on the side of the pushing block on the right side, and the meshing rack extends through to the outside of the rear support plate. A meshing gear is fixedly installed on the surface of the vertical rotating shaft, and the meshing gear and the meshing rack are meshed with each other.

[0017] Preferably, the adjustment assembly includes a front supporting plate installed on the front side of the discharge box, a symmetrical trapezoidal groove is opened on the inner side of the front supporting plate, a positioning plate is installed at the bottom of the closing plate, and a toggle plate is slidably arranged inside the positioning plate and at the lower opening, a return spring is installed between the opposite sides of the toggle plate and the positioning plate, a sliding column is installed on the front side of the toggle plate and extends through to the outside of the positioning plate, the sliding column slides inside the trapezoidal groove and controls the positioning plate to perform lifting and lowering and left and right movement operations.

[0018] Beneficial Effects

[0019] The present invention provides a plasma treatment radioactive waste slag collection device. Compared with the prior art, it has the following beneficial effects:

[0020] (1) The plasma treatment radioactive waste slag receiving device is provided with a closing mechanism. After the slag receiving is completed, the driving operation of the material pressing and closing unit is used to first drive the material pressing plate to flatten the waste slag carried by the slag receiving box, and then the closing plate is moved relatively, and the sealing plate is driven to perform a closing operation simultaneously, so as to realize the integrated linkage operation of flattening the waste slag after the material is dropped, closing the material outlet and closing the slag receiving port, thereby preventing personnel from contacting with radioactive substances, effectively improving the efficiency of slag receiving, improving the sealing after the slag receiving is completed, and avoiding the problem of radioactive waste overflow.

[0021] (2) The plasma treatment radioactive waste slag receiving device is provided with a material pressing and closing unit, which uses the drive motor to drive the intermittent component to rotate, and drives the material pressing plate to move downward to flatten the waste that exceeds the height of the slag box. At the same time, during the process of resetting the material pressing plate, the closing plate is synchronously moved relative to complete the synchronous closing operation of the discharge port and the slag receiving port, so that when the slag box is replaced, there is no exposure of radioactive waste, which improves the safety of subsequent personnel operations.

[0022] (3) The plasma treatment radioactive waste slag receiving device is provided with an adjustment component, which utilizes the sliding column to slide inside the trapezoidal groove, so that the toggle plate moves from the top to the bottom and is located on the side away from each other of the two vertical plates during the opening process of the closing plate, thereby avoiding collision with the vertical plates during the opening process, and facilitating the subsequent synchronous closing operation of the discharge port and the slag receiving port, thereby avoiding human contact and improving the efficiency of subsequent slag receiving operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an external three-dimensional structural diagram of the present invention;

[0024] Figure 2 It is an internal three-dimensional structure diagram of the present invention;

[0025] Figure 3 It is a disassembled diagram of the internal three-dimensional structure of the present invention;

[0026] Figure 4 It is a three-dimensional structural diagram of the material pressing and closing unit of the present invention;

[0027] Figure 5 It is a three-dimensional structural diagram of the intermittent component of the present invention;

[0028] Figure 6 It is a three-dimensional structural diagram of the control component of the present invention;

[0029] Figure 7 For the present invention Figure 6 Partial three-dimensional structure diagram;

[0030] Figure 8 This is a three-dimensional structural exploded view of the adjustment component of the present invention;

[0031] Fig. 9 It is a three-dimensional structural diagram of the slag receiving box of the present invention;

[0032] Fig.10 It is a three-dimensional structural exploded diagram of the closing mechanism of the present invention;

[0033] Fig.11 For the present invention Fig.10 A magnified view of the local structure at center A;

[0034] Fig.12 It is a three-dimensional structural exploded view of the sealing component of the present invention.

[0035] In the figure: 1-processing box, 2-processing tank, 3-fixed box, 4-discharging box, 5-slag receiving box, 6-closing mechanism, 61-sealing plate, 62-vertical plate, 63-closing component, 63-1-wrapping frame, 63-2-clamping plate, 64-sliding plate, 65-feeding trough, 66-sliding trough, 67-resisting rod, 68-limiting block, 69-resisting spring, 7-pressing and closing unit, 71-driving motor, 72-driving shaft, 73-intermittent component, 73-1-driving gear, 73-2-auxiliary gear, 74-pulling component, 74-1-driving wheel, 74-2-transmission wheel, 74-3-pulling rope, 75-control component, 75-1-moving Rod, 75-2-center rod, 75-3-rear bearing plate, 75-4-connecting rod, 75-5-pushing block, 75-6-center shaft, 75-7-pneumatic assembly, 75-71-cylinder, 75-72-piston rod, 75-8-meshing assembly, 75-81-meshing rack, 75-82-meshing gear, 76-adjusting assembly, 76-1-front bearing plate, 76-2-trapezoidal groove, 76-3-positioning plate, 76-4-sliding plate, 76-5-reset spring, 76-6-sliding column, 77-secondary driving shaft, 78-vertical shaft, 79-closing plate, 710-pressing rod, 711-pressing plate, 712-arc ring, 713-rotating plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides two technical solutions:

[0038] See also Figure 1-Figure 12A slag receiving device for plasma treatment of radioactive waste comprises a treatment box 1, a treatment tank 2 is installed on the left side of the top of the treatment box 1, and a fixed box 3 is installed on the right side of the top of the treatment box 1, a discharge box 4 is installed inside the treatment box 1 and is connected with the material drop of the treatment tank 2 through a pipeline, the bottom of the discharge box 4 is in close contact with a slag receiving box 5 placed below it, a slag receiving box 5 is slidably installed inside the treatment box 1 and directly below the discharge box 4, the bottom of the slag receiving box 5 and the bottom of the inner cavity of the treatment box 1 are limitedly slid in the front and rear directions through a sliding assembly, which comprises a slider installed at the bottom of the slag receiving box 5 and a slide groove opened at the bottom of the inner cavity of the treatment box 1, and the slider and the slide groove are adapted to slide, and a closing mechanism 6 is provided on the top of the slag receiving box 5 for sealing the slag port;

[0039] The closing mechanism 6 includes symmetrical sealing plates 61, and vertical plates 62 are installed on the top of the two sealing plates 61. The top surface of the vertical plate 62 is flush with the top of the slag receiving box 5. A closing assembly 63 is arranged between the opposite sides of the sealing plates 61, and sliding plates 64 are installed on the front and rear sides of the sealing plates 61. A feed trough 65 is opened on the top of the slag receiving box 5, and a sliding groove 66 is opened on the groove wall of the feed trough 65. The sealing plates 61 and the sliding plates 64 are both located on the inner wall of the sliding groove 66 to realize horizontal sliding on the left and right sides, and the vertical plates 62 are connected to the vertical plate 62. The closing operation of the feed trough 65 is realized by the material pressing and closing unit 7 arranged in the discharge box 4. The surface of the slag receiving box 5 and the front and rear sides of the sliding groove 66 are symmetrically penetrated by a push rod 67 and can slide relative to the slag receiving box 5. One end of the push rod 67 is located inside the sliding groove 66 and a limit block 68 is installed. The surface of the push rod 67 is sleeved with a push spring 69. The push spring 69 is used to realize the limiting of the sliding plate 64 by the limit block 68, and the two ends of the push spring 69 are fixed to the opposite sides of the limit block 68 and the sliding groove 66.

[0040] Among them, the end faces of the symmetrical limit blocks 68 in the left and right directions that are away from each other are arc surfaces, and the opposite sides of the symmetrical limit blocks 68 in the left and right directions are planes in the front and rear directions, and the sliding plate 64 slides in the sliding groove 66 and slides to contact the arc surface of the limit block 68, so that the limit block 68 is pushed until the sliding plate 64 is out of contact with the arc surface of the limit block 68, and the limit block 68 is reset under the elasticity of the push spring 69, thereby completing the limit of the sliding plate 64 by the limit block 68.

[0041] By providing a closing mechanism 6, after the slag connection is completed, the driving operation of the material pressing and closing unit 7 is utilized to first drive the material pressing plate 711 to flatten the waste slag carried by the slag box 5, and then the closing plate 79 is moved relatively, and the sealing plate 61 is simultaneously driven to perform a closing operation, so as to realize the integrated linkage operation of flattening the waste slag after the material is dropped, closing the material outlet and closing the slag connection port, which can effectively improve the efficiency of slag connection and the sealing after the slag connection is completed, and avoid the problem of radioactive waste material overflow.

[0042] See also Figure 9-10 and Fig.12 In this embodiment, the closing component 63 includes a wrapping frame 63-1 installed on the right side of the left sealing plate 61, a snap-in plate 63-2 is installed on the left side of the right sealing plate 61, and a groove adapted to slide with the snap-in plate 63-2 is opened on the right side of the wrapping frame 63-1. When closed, the snap-in plate 63-2 moves into the groove of the wrapping frame 63-1 and makes the opposite sides of the two sealing plates 61 fit in contact.

[0043] See also Figure 2-Figure 8 In this embodiment, the material pressing and closing unit 7 includes a driving motor 71 installed on the inner wall of the fixed box 3. The driving motor 71 is a three-phase asynchronous motor. The driving motor 71 is electrically connected to an external power supply. The driving motor 71 realizes the opening and closing operation through the external control panel operated by a person. One end of the output shaft of the driving motor 71 is fixedly connected to a driving shaft 72 through a coupling, and the surface of the driving shaft 72 is connected to the inner wall of the fixed box 3 through an intermittent component 73, and the rear end of the auxiliary shaft 77 is connected to the vertical shaft 78 at the top of the inner cavity of the fixed box 3 through a pulling component 74. The bottom of the vertical rotating shaft 78 is provided with a control component 75 to enable the symmetrical closing plates 79 to move relative to each other, and the bottom of the closing plates 79 is provided with an adjustment component 76 to control the movement of the sealing plate 61. A pressing rod 710 slides through the top of the discharge box 4, and a pressing plate 711 is installed at the bottom end of the pressing rod 710, and an arc ring 712 is installed at the top of the pressing rod 710. A rotating plate 713 is installed at the front end of the driving shaft 72. The convex column on the surface of the rotating plate 713 slides in the ring groove of the arc ring 712 and enables the arc ring 712 to be lifted and lowered in the vertical direction.

[0044] Among them, by providing a material pressing and closing unit 7, the intermittent component 73 is rotated by the drive motor 71, and the material pressing plate 711 is driven to move downward to flatten the waste that exceeds the height of the slag box 5. At the same time, during the resetting process of the material pressing plate 711, the closing plate 79 is synchronously moved relative to complete the synchronous closing operation of the discharge port and the slag receiving port, so that when the slag box 5 is replaced, there is no exposure of radioactive waste, which improves the safety of subsequent personnel operations.

[0045] See also Figure 2-Figure 5 In this embodiment, the intermittent component 73 includes a driving gear 73-1 installed on the surface of the driving shaft 72 and an auxiliary gear 73-2 installed on the surface of the auxiliary shaft 77. The surface of the driving gear 73-1 is installed with a protrusion, and the surface of the auxiliary gear 73-2 is installed with a cam plate. When the protrusion contacts the cam plate, the driving gear 73-1 can avoid the problem of reverse rotation. When the surface of the driving gear 73-1 is meshed with the surface of the auxiliary gear 73-2, the driving shaft 72 and the auxiliary shaft 77 rotate synchronously, and each rotation of the driving gear 73-1 drives the auxiliary gear 73-2 to rotate half a circle.

[0046] See also Figure 2-Figure 4 In this embodiment, the pulling assembly 74 includes a driving wheel 74-1 and a transmission wheel 74-2. The surface of the auxiliary shaft 77 is fixed to the driving wheel 74-1 through a one-way shaft, and when the auxiliary shaft 77 rotates, the driving wheel 74-1 can be driven to rotate synchronously. On the contrary, when the driving wheel 74-1 is driven to rotate, the auxiliary shaft 77 does not rotate. The transmission wheel 74-2 is fixedly installed on the surface of the vertical shaft 78, and a pulling rope 74-3 is fixedly installed at the wire grooves of the driving wheel 74-1 and the transmission wheel 74-2.

[0047] See also Figure 6-Figure 7 In this embodiment, the control component 75 includes symmetrical moving rods 75-1, a center rod 75-2 is rotatably installed between one ends of the two moving rods 75-1, and a rear support plate 75-3 is installed on the rear side of the discharge box 4, and a center shaft 75-6 is installed at the center of the rear side of the center rod 75-2 and rotates with the inner wall of the rear support plate 75-3, the other end of the moving rod 75-1 is rotatably connected to the connecting rod 75-4 through a rotating pin, and the connecting rod 75-4 is fixed to the rear side of the closing plate 79, a pushing block 75-5 is installed on the rear side of the moving rod 75-1 and at the rotating pin, the left pushing block 75-5 is pushed by the pneumatic component 75-7 to realize the opening operation of the closing plate 79, and the right pushing block 75-5 is connected to the vertical rotating shaft 78 through the meshing component 75-8.

[0048] See also Figure 7 In this embodiment, the pneumatic component 75-7 includes a cylinder 75-71 installed inside the rear support plate 75-3, the cylinder 75-71 is connected to the external air circuit, and the cylinder 75-71 is opened and closed by a person operating the external control panel, and a piston rod 75-72 is slidably installed inside the cylinder 75-71, and one end of the piston rod 75-72 is fixed to the side of the left push block 75-5.

[0049] See also Figure 2-Figure 4 and Figure 6In this embodiment, the meshing assembly 75-8 includes a meshing rack 75-81 installed on the side of the right push block 75-5, and the meshing rack 75-81 extends through the outside of the rear support plate 75-3, and a meshing gear 75-82 is fixedly installed on the surface of the vertical shaft 78, and the meshing gear 75-82 and the meshing rack 75-81 are meshed with each other.

[0050] Embodiment 2

[0051] The difference compared with the first embodiment is:

[0052] See also Figure 6 and Figure 8 , in this embodiment, the adjustment component 76 includes a front supporting plate 76-1 installed on the front side of the discharge box 4, and a symmetrical trapezoidal groove 76-2 is opened on the inner side of the front supporting plate 76-1, and a positioning plate 76-3 is installed at the bottom of the closing plate 79, and a toggle plate 76-4 is slidably arranged inside the positioning plate 76-3 and at the lower opening, and a return spring 76-5 is installed between the opposite sides of the toggle plate 76-4 and the positioning plate 76-3. The return spring 76-5 is used to realize that when the sliding column 76-6 is in the vertical section groove of the trapezoidal groove 76-2, the sliding column 76-6 is installed on the front side of the toggle plate 76-4 and extends through to the outside of the positioning plate 76-3. The sliding column 76-6 slides inside the trapezoidal groove 76-2 and controls the positioning plate 76-3 to perform lifting and lowering and left and right side movement operations.

[0053] By providing an adjustment component 76 and utilizing the sliding column 76-6 to slide inside the trapezoidal groove 76-2, the toggle plate 76-4 is moved from the top to the bottom and positioned away from each other on the two vertical plates 62 during the opening process of the closing plate 79, thereby avoiding collision with the vertical plates 62 during the opening process and facilitating the subsequent synchronous closing operation of the discharge port and the slag receiving port, thereby avoiding human contact and improving the efficiency of subsequent slag receiving operations.

[0054] In this article, sealing gaskets are installed on the surfaces of the external structural parts of the fixed box 3, the discharge box 4 and the slag receiving box 5, and sealing rings are installed at the penetrations between the structural parts, which effectively avoids the radiation problem of radioactive waste materials and improves the sealing performance.

[0055] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0056] During operation, firstly, the top feed chute 65 of the empty slag receiving box 5 is opened, and the slag receiving box 5 is placed under the discharge box 4 from the outside of the processing box 1. Then, the cylinder 75-71 is started to drive the piston rod 75-72 to move, and the push block 75-5 drives a moving rod 75-1 to move, so that the center rod 75-2 rotates around the center shaft 75-6, and at the same time drives the two closing plates 79 to open. At this time, during the movement, the sliding column 76-6 on the toggle plate 76-4 slides inside the trapezoidal groove 76-2, and when it moves to the inclined surface of the trapezoidal groove 76-2, the toggle plate 76-4 moves to the side away from the vertical plate 62, so as to facilitate the subsequent closing operation of the sealing plate 61.

[0057] Then, by opening the control valve of the pipe connecting the discharge box 4 and the processing tank 2, the glass-like waste material is allowed to fall from the discharge port of the discharge box 4 into the slag receiving box 5. After the material dropping is completed, the drive motor 71 is started to drive the drive shaft 72 to rotate, and the drive shaft 72 drives the rotating plate 713 to rotate, so that the convex column on the surface of the rotating plate 713 slides in the annular groove of the arc ring 712 and the arc ring 712 moves downward, so that the pressing rod 710 and the pressing plate 711 extend to the inside of the slag receiving box 5 and flatten the waste slag. At this time, during the pressing operation, the auxiliary driving shaft 77 does not rotate.

[0058] The rotation of the drive shaft 72 causes the driving gear 73-1 to rotate, so that the driving gear 73-1 meshes with the surface of the auxiliary gear 73-2 and drives the auxiliary gear 73-2 and the auxiliary shaft 77 to rotate. At this time, the auxiliary shaft 77 drives the driving wheel 74-1 to rotate to realize the winding operation of the pulling rope 74-3, and the winding of the pulling rope 74-3 causes the transmission wheel 74-2 and the vertical shaft 78 to rotate synchronously, and the rotation of the vertical shaft 78 drives the meshing gear 75-82 to rotate, wherein the meshing gear 75-82 drives the meshing rack 75-81 to move to the left, so that the right pushing block 75-5 is pushed, driving the rotation operation of the moving rod 75-1 and the center rod 75-2, and driving the closing plate 79 to perform relative movement operation, synchronously driving the sealing plate 61 to perform movement operation, completing the synchronous closing operation of the discharge port and the slag receiving port;

[0059] Among them, the movement of the sealing plate 61 will drive the sliding plate 64 to slide inside the sliding groove 66, driving the sliding plate 64 to contact the arc surface of the limit block 68, so that the limit block 68 is pushed until the sliding plate 64 is out of contact with the arc surface of the limit block 68, and the limit block 68 is reset under the elasticity of the push spring 69, thereby completing the limiting of the sliding plate 64 by the limit block 68, and when closed, the snap-in plate 63-2 moves to the inside of the groove of the wrapping frame 63-1 and makes the opposite sides of the two sealing plates 61 fit in contact.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag receiving device for plasma treatment of radioactive waste, comprising a treatment box (1), a treatment tank (2) being installed on the left side of the top of the treatment box (1), and a fixed box (3) being installed on the right side of the top of the treatment box (1), a discharge box (4) being installed inside the treatment box (1) and being connected to a discharge point of the treatment tank (2) through a pipeline, and a slag receiving box (5) being slidably installed inside the treatment box (1) and directly below the discharge box (4), characterized in that: The top of the slag receiving box (5) is provided with a closing mechanism (6) for sealing the slag receiving opening; The closing mechanism (6) comprises symmetrical sealing plates (61), the tops of the two sealing plates (61) are provided with vertical plates (62), a closing assembly (63) is provided between the opposite sides of the sealing plates (61), and sliding plates (64) are provided on the front and rear sides of the sealing plates (61), a feed trough (65) is provided on the top of the slag receiving box (5), and a sliding groove (66) is provided on the groove wall of the feed trough (65), and the sealing plates (61) and the sliding plates (64) are both located on the inner wall of the sliding groove (66) to achieve horizontal sliding on the left and right sides, and vertical sliding on the left and right sides. The plate (62) realizes the closing operation of the feed chute (65) through the material pressing and closing unit (7) provided in the discharge box (4); a moving rod (67) is symmetrically penetrated through the surface of the slag receiving box (5) and is located in the front and rear sides of the sliding groove (66) and can slide relative to the slag receiving box (5); one end of the moving rod (67) is located inside the sliding groove (66) and a limit block (68) is installed; a moving spring (69) is sleeved on the surface of the moving rod (67), and two ends of the moving spring (69) are fixed to the limit block (68) and the opposite sides of the sliding groove (66); The material pressing and closing unit (7) comprises a driving motor (71) mounted on the inner wall of the fixed box (3), one end of the output shaft of the driving motor (71) is fixedly connected to a driving shaft (72) via a coupling, and the surface of the driving shaft (72) causes a secondary rotating shaft (77) to rotate on the inner wall of the fixed box (3) via an intermittent component (73), the rear end of the secondary rotating shaft (77) causes a vertical rotating shaft (78) to rotate on the top of the inner cavity of the fixed box (3) via a pulling component (74), and the bottom of the vertical rotating shaft (78) causes a symmetrical material closing plate (78) to rotate via a control component (75) 9) perform relative movement operation, and an adjustment component (76) is provided at the bottom of the closing plate (79) to realize the control of the movement of the sealing plate (61), a pressing rod (710) is slidably passed through the top of the discharge box (4), and a pressing plate (711) is installed at the bottom end of the pressing rod (710), and an arc ring (712) is installed at the top end of the pressing rod (710), and a rotating plate (713) is installed at the front end of the driving shaft (72), and the convex column on the surface of the rotating plate (713) slides in the annular groove of the arc ring (712) and enables the arc ring (712) to perform vertical lifting operation; The pulling assembly (74) comprises a driving wheel (74-1) and a transmission wheel (74-2); the surface of the auxiliary driving shaft (77) is fixed to the driving wheel (74-1) via a one-way shaft, and when the auxiliary driving shaft (77) rotates, the driving wheel (74-1) can be synchronously driven to rotate; the transmission wheel (74-2) is fixedly mounted on the surface of a vertical rotating shaft (78); and a pulling rope (74-3) is fixedly mounted at the wire grooves of the driving wheel (74-1) and the transmission wheel (74-2); The control assembly (75) comprises symmetrical moving rods (75-1), a center rod (75-2) is rotatably mounted between one end of the two moving rods (75-1), a rear support plate (75-3) is mounted on the rear side of the discharge box (4), a center rotating shaft (75-6) is mounted at the center of the rear side of the center rod (75-2) and rotates with the inner wall of the rear support plate (75-3), the other end of the moving rod (75-1) is rotatably connected to a connecting rod (75-4) via a rotating pin, and the connecting rod (75-4) is fixed to the rear side of the closing plate (79), a pushing block (75-5) is mounted on the rear side of the moving rod (75-1) and at the rotating pin, the pushing block (75-5) on the left side is pushed by the pneumatic assembly (75-7) to realize the opening operation of the closing plate (79), and the pushing block (75-5) on the right side is connected to the vertical rotating shaft (78) via a meshing assembly (75-8); The adjustment assembly (76) comprises a front bearing plate (76-1) mounted on the front side of the discharge box (4), a symmetrical trapezoidal groove (76-2) being provided on the inner side of the front bearing plate (76-1), a positioning plate (76-3) being mounted on the bottom of the closing plate (79), a toggle plate (76-4) being slidably mounted inside the positioning plate (76-3) and at the lower opening, a return spring (76-5) being mounted between the opposite sides of the toggle plate (76-4) and the positioning plate (76-3), a sliding column (76-6) being mounted on the front side of the toggle plate (76-4) and extending through to the outside of the positioning plate (76-3), the sliding column (76-6) sliding inside the trapezoidal groove (76-2) and controlling the positioning plate (76-3) to perform lifting and lowering and left-right movement operations.

2. The plasma treatment radioactive waste slag collecting device according to claim 1, characterized in that: The closure assembly (63) comprises a wrapping frame (63-1) mounted on the right side of the left sealing plate (61); a snap-in plate (63-2) is mounted on the left side of the right sealing plate (61); and a groove adapted to slide with the snap-in plate (63-2) is provided on the right side of the wrapping frame (63-1); when closed, the snap-in plate (63-2) moves into the groove of the wrapping frame (63-1) and enables the opposite sides of the two sealing plates (61) to fit and contact each other.

3. The plasma treatment radioactive waste slag collecting device according to claim 1, characterized in that: The intermittent assembly (73) comprises a driving gear (73-1) mounted on the surface of the driving shaft (72) and an auxiliary gear (73-2) mounted on the surface of the auxiliary shaft (77); when the surface of the driving gear (73-1) is meshed with the surface of the auxiliary gear (73-2), the driving shaft (72) and the auxiliary shaft (77) rotate synchronously.

4. The plasma treatment radioactive waste slag collecting device according to claim 1, characterized in that: The pneumatic assembly (75-7) comprises a cylinder (75-71) installed inside the rear support plate (75-3), a piston rod (75-72) is slidably installed inside the cylinder (75-71), and one end of the piston rod (75-72) is fixed to the side surface of the push block (75-5) on the left side.

5. The plasma treatment radioactive waste slag collecting device according to claim 1, characterized in that: The meshing assembly (75-8) comprises a meshing rack (75-81) mounted on the side of the right push block (75-5), and the meshing rack (75-81) extends through and extends to the outside of the rear support plate (75-3), and a meshing gear (75-82) is fixedly mounted on the surface of the vertical shaft (78), and the meshing gear (75-82) and the meshing rack (75-81) are meshed with each other on the surface.

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