Core combustion high-temperature incineration treatment device and method for nuclear radiation contaminated soil

Abstract

The invention discloses an inner core combustion high-temperature incineration treatment device and method for nuclear radiation contaminated soil, and particularly relates to the field of soil treatment.The inner core combustion high-temperature incineration treatment device for the nuclear radiation contaminated soil comprises a rotary kiln base, a driving mechanism is installed on the rotary kiln base, and an incineration furnace barrel is installed on the driving mechanism; a feeding mechanism and a discharging mechanism are arranged at the two ends of the incinerator cylinder correspondingly, the height of the feeding mechanism is larger than that of the discharging mechanism, and a refractory brick lining layer is laid on the inner wall of the incinerator cylinder. A cleaning mechanism is arranged on the outer side of the rotary kiln base and movably installed at the position, close to the discharging mechanism, of the incinerator barrel. The repair mud is sprayed to the damaged part through the mud spraying box and the cover plate in the repair assembly, and synchronous work of front end cleaning and rear end repair is completed, so that the maintenance efficiency is improved, the splicing seam of the refractory brick lining layer is completely filled with the refractory mud, the refractory bricks are prevented from being quickly corroded, the refractory bricks are firmly installed, and the structural safety of a furnace body is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of soil treatment, and more specifically to a device and method for treating nuclear radiation contaminated soil by high temperature incineration of the inner core. Background Art

[0002] After nuclear radiation contaminated soil is incinerated at high temperatures (usually over 1000°C), the organic pollutants in the soil can be decomposed into harmless gases (such as carbon dioxide) while fixing the radioactive substances.

[0003] The specific steps for the high-temperature incineration of the core of radioactive contaminated soil include:

[0004] Pretreatment: crush and screen the contaminated soil to remove large impurities; incineration: heat the soil in a high-temperature incinerator to decompose organic pollutants and fix radioactive substances; tail gas treatment: the gas produced by incineration needs to be filtered, adsorbed and treated to ensure that the emission meets the standards; residue treatment: the residue after incineration needs to be further solidified to ensure the stability of the radioactive substances.

[0005] The existing technology uses a rotary kiln incinerator to incinerate and heat the soil, which has the advantages of continuously processing a large amount of soil and stabilizing the temperature at 1000-1200°C. The main structure of the rotary kiln incinerator is a long cylinder, and its inner wall needs to be resistant to high temperatures, so refractory materials (such as refractory bricks or castables) are laid to form high-temperature resistant furnace walls. In scenarios with high temperatures, corrosion and radiation protection requirements, refractory bricks are more resistant to long-term high temperatures and thermal shocks than castables. Refractory bricks have the advantages of excellent thermal shock stability, resistance to slag erosion, good shielding performance, and high local maintenance efficiency. Therefore, the use of refractory bricks as refractory materials in rotary kiln incinerators is more in line with production needs.

[0006] Since the refractory bricks in the rotary kiln incinerator are laid by splicing, there are inevitably splicing seams, and the location of the splicing seams is a "low-lying area". Therefore, the existing technology uses refractory mud (such as high-alumina, silicon or silicon carbide) that matches the refractory bricks to fill the splicing seams. The temperature resistance of the refractory mud must be ≥ the operating temperature of the incinerator (such as above 1300°C).

[0007] During the treatment process, metal oxides (such as ferric oxide and aluminum oxide) in the nuclear radiation contaminated soil will adhere to the furnace wall to form slag blocks after high-temperature melting. Excessive accumulation of slag blocks will reduce the heat transfer efficiency and corrode the furnace wall. Therefore, the prior art uses a rotating scraper system to clean the slag blocks adhered to the furnace wall. When the machine is shut down, the rotating scraper system is started and the slag blocks are scraped off by the scraper. Since the cylinder of the rotary kiln incinerator rotates continuously during operation, the slag blocks are more likely to stay at the joints of the "low-lying areas", resulting in a large volume of slag blocks at this location. The larger the volume of the slag blocks, the larger the area of ​​refractory mud they adhere to. When the scraper cleans large-volume slag blocks, the more refractory mud is brought out. After repeated cleaning, the joints that have lost refractory mud filling become larger and larger, resulting in high-temperature molten slag penetrating into the unfilled joints, aggravating the corrosion of refractory bricks and making them more likely to fall off, thereby affecting the safety of the furnace structure. Summary of the invention

[0008] The present invention provides a device and method for high-temperature incineration treatment of nuclear radiation contaminated soil with inner core combustion, and aims to solve the problem that, in the existing device for high-temperature incineration treatment of nuclear radiation contaminated soil with inner core combustion, when the scraper cleans large-volume slag blocks, more refractory mud is brought out, resulting in high-temperature molten slag penetrating into the unfilled joint seams.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nuclear core combustion high-temperature incineration treatment device for nuclear radioactive contaminated soil, comprising a rotary kiln seat, a driving mechanism is installed on the rotary kiln seat, an incineration furnace barrel is installed on the driving mechanism, a feeding mechanism and a discharging mechanism are respectively provided at both ends of the incineration furnace barrel, and the height of the feeding mechanism is greater than the height of the discharging mechanism, and the inner wall of the incineration furnace barrel is paved with a refractory brick lining layer; a cleaning mechanism is provided on the outer side of the rotary kiln seat, and the cleaning mechanism is movably installed in the incineration furnace barrel near the discharging mechanism; the cleaning mechanism comprises a driving seat, a driving shaft is installed on the driving seat, and detection components and repair components are relatively installed on both sides of the driving shaft, a scraper component is installed at one end of the driving shaft, and the detection component, the repair component and the scraper component are all movably arranged inside the incineration furnace barrel; a spraying mechanism is installed on the repairing component, and the spraying mechanism comprises a mud spraying box, and the outlet at one end of the mud spraying box is connected to a cover plate, and the mud spraying box sprays repair mud through the cover plate.

[0010] In a preferred embodiment, a linear motor is installed on the drive seat, the drive shaft includes a rotating shaft and a guide shaft, the detection component, the repair component and the scraper component are all installed on the rotating shaft, the linear motor drives the guide shaft to perform axial linear motion, a servo motor is installed at one end or inside the guide shaft, and the servo motor drives the rotating shaft to rotate.

[0011] In a preferred embodiment, the detection component includes an infrared camera, and the infrared camera transmits data to a processing terminal, the processing terminal includes an image recognition module and a control module of a servo motor, and the center of the infrared camera and the center of the cover plate are located on the same straight line.

[0012] In a preferred embodiment, the repair assembly includes a repair box, the spraying mechanism is installed inside the repair box, a linear drive is installed inside the repair box, the linear drive is used to drive the spraying mechanism to move laterally, a pump box is installed on the repair box, and a control box is provided on one side of the pump box.

[0013] In a preferred embodiment, a mud chamber and a pressure chamber are provided inside the mud spraying box, and the pressure chamber is connected between the mud chamber and the conveying cylinder. The mud chamber and the pump box are connected by a pipeline, and the repair mud inside the mud chamber is conveyed to the conveying cylinder through the pressure chamber.

[0014] In a preferred embodiment, a cooling port is provided on one side of the mud chamber, a feeding port is provided on the side of the mud chamber away from the cooling port, and a cleaning port is provided on the end of the mud spraying box away from the conveying cylinder.

[0015] In a preferred embodiment, a pressurizing port is opened on one side of the pressurizing chamber, a sealing cover is hinged on the mud spraying box, and the sealing cover is used to close the mud chamber and the top of the pressurizing chamber.

[0016] In a preferred embodiment, a support plate 1 is fixedly provided at one end of the conveying cylinder, a conveying sleeve is installed inside the conveying cylinder, and a support plate 2 is fixedly provided between the conveying cylinder and the support plate 1.

[0017] In a preferred embodiment, a collecting component is provided below the repairing component, a linear drive three is installed on one side of the collecting component, and the linear drive three is fixedly installed on the repairing component, a waste barrel is fixedly provided at the bottom of the collecting component, a connecting port is opened inside the collecting component, a positioning plate is fixedly provided at one end of the collecting component, and two groups of positioning plates are arranged opposite to each other, a linear drive two is installed at one end of the collecting component, a squeegee plate is slidably provided between the two groups of positioning plates, and the linear drive two drives the squeegee plate to move vertically.

[0018] The present invention also provides a method for treating nuclear radiation contaminated soil by a core combustion high temperature incineration treatment device, comprising the following steps:

[0019] S1: Visual inspection, using infrared camera and image recognition module to rotate the angle in real time to locate the damaged part of the refractory brick lining;

[0020] S2: according to the location of the damaged part of the refractory brick lining, move the repair component to the damaged part;

[0021] S3: Turn on the spraying mechanism, aim at the damaged part of the refractory brick lining, and spray the repair slurry under pressure;

[0022] S4: Smoothing the repair slurry at the damaged part of the refractory brick lining through the collecting assembly and recovering the remaining material;

[0023] S5: After all cleaning is completed, withdraw and raise the furnace temperature to 1100℃ and maintain for 10 minutes until the repair mud is completely solidified.

[0024] The beneficial effects of the present invention are:

[0025] The present invention sprays repair mud to the damaged part through the mud spraying box and the cover plate in the repair component, completes the synchronous work of front-end cleaning and rear-end repair, thereby improving the maintenance efficiency, filling the refractory mud in the joints of the refractory brick lining layer completely, avoiding the rapid corrosion of the refractory bricks and making them firmly installed, thereby ensuring the safety of the furnace body structure.

[0026] The present invention drives the trowel plate to move vertically through the second linear drive. The trowel plate slides closely against the damaged part of the refractory brick lining layer, smoothes the repair mud and scrapes off the excess repair mud. The excess repair mud falls on the collection component and then flows into the inside of the waste barrel through the connection port for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a three-dimensional schematic diagram of the cleaning mechanism structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the end of the cleaning mechanism of the present invention.

[0030] Figure 4 It is a schematic diagram of the cross-sectional structure of the repair component of the present invention.

[0031] Figure 5 It is a schematic diagram of the spraying mechanism structure of the present invention.

[0032] Figure 6 It is a structural schematic diagram of one side of the mud spraying box of the present invention.

[0033] Figure 7 It is an exploded schematic diagram of the spraying mechanism structure of the present invention.

[0034] Figure 8 It is a schematic top view of the spraying mechanism structure of the present invention.

[0035] Fig. 9 It is a schematic structural diagram of the rear end portion of the spraying mechanism of the present invention.

[0036] Fig.10It is a schematic structural diagram of the front end portion of the spraying mechanism of the present invention.

[0037] Fig.11 It is a schematic diagram of the structure of the collection component of the present invention.

[0038] Fig.12 It is a schematic diagram of the processing method of the present invention.

[0039] The accompanying drawings are marked as follows: 1, rotary kiln seat; 11, driving mechanism; 2, incineration furnace tube; 21, feeding mechanism; 22, discharging mechanism; 23, refractory brick lining; 3, cleaning mechanism; 31, driving seat; 32, driving shaft; 33, detection component; 34, repair component; 341, repair box; 342, pump box; 343, control box; 344, linear drive 1; 35, scraper component; 36, collection component; 361, connection port; 3 62. Positioning plate; 363. Linear drive 2; 37. Linear drive 3; 38. Waste barrel; 39. Smoothing plate; 4. Spraying mechanism; 41. Mud spraying box; 411. Mud chamber; 412. Cooling port; 413. Pressurizing port; 414. Sealing cover plate; 415. Pressurizing chamber; 42. Conveying barrel; 421. Support plate 1; 422. Conveying sleeve; 423. Support plate 2; 43. Cover plate; 44. Feeding port; 45. Cleaning port. DETAILED DESCRIPTION

[0040] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0041] Refer to the instruction manual Figures 1 to 5 A nuclear core combustion high temperature incineration treatment device for nuclear radioactive contaminated soil comprises a rotary kiln seat 1, a driving mechanism 11 is installed on the rotary kiln seat 1, an incineration furnace tube 2 is installed on the driving mechanism 11, a feeding mechanism 21 and a discharging mechanism 22 are respectively arranged at both ends of the incineration furnace tube 2, and the height of the feeding mechanism 21 is greater than the height of the discharging mechanism 22, and the inner wall of the incineration furnace tube 2 is paved with a refractory brick lining layer 23; a cleaning mechanism 3 is arranged on the outer side of the rotary kiln seat 1, and the cleaning mechanism 3 is movably installed on the incineration furnace tube 2 near the discharging mechanism 22; The cleaning mechanism 3 includes a driving seat 31, on which a driving shaft 32 is installed, and detection components 33 and repair components 34 are installed on both sides of the driving shaft 32. A scraper component 35 is installed at one end of the driving shaft 32. The detection component 33, the repair component 34 and the scraper component 35 are all movably arranged inside the incineration furnace tube 2; a spraying mechanism 4 is installed on the repairing component 34, and the spraying mechanism 4 includes a mud spraying box 41, and an outlet at one end of the mud spraying box 41 is connected to a cover plate 43, and the mud spraying box 41 sprays out repair mud through the cover plate 43.

[0042] It should be noted that the driving mechanism 11, the feeding mechanism 21 and the discharging mechanism 22 are all existing mature technologies. The driving mechanism 11 includes a driving motor for driving the incineration furnace barrel 2 to rotate. The incineration furnace barrel 2 is rotatably connected to the feeding mechanism 21 and the discharging mechanism 22 respectively.

[0043] In this embodiment, the implementation scenario is specifically as follows: crushing the radioactive contaminated soil to a particle size of less than 5 cm, screening out large impurities such as stones and metals, reducing the moisture content of the soil by hot air or natural drying, and finally mixing with a combustion aid or stabilizer to obtain the soil to be treated, feeding the soil to be treated from the feeding mechanism 21 into the incinerator tube 2 for combustion, monitoring the temperature in the incinerator tube 2 in real time, and maintaining the temperature in the incinerator tube 2 stable by adjusting the fuel supply and air flow, so that the radioactive nuclides melt with silicates, aluminates, etc. in the soil at high temperature. The glassy substance is formed, and by adding stabilizers such as phosphates and zeolites, it reacts with the radioactive substance to form insoluble compounds, completing the fixation of the radioactive substance. Finally, the treated soil is discharged through the discharge mechanism 22 for subsequent treatment. When cleaning the slag blocks adhered to the refractory brick lining layer 23, the cleaning mechanism 3 is installed at one end of the incinerator tube 2 close to the discharge mechanism 22, and the detection component 33, the repair component 34 and the scraper component 35 are driven axially and linearly into the interior of the incinerator tube 2 through the drive seat 31, and the drive shaft 32 is driven to rotate through the drive seat 31. The scraper assembly 35 rotates to clean the slag adhered to the refractory brick lining layer 23 in front. The cleaning work of the scraper assembly 35 is carried out in sections. At the first section, the scraper assembly 35 stops moving forward and rotates 3-5 times in place, and then moves the scraper assembly 35 to the second section. The scraper assembly 35 also rotates 3-5 times in the second section and continues to move forward. When the scraper assembly 35 enters the second section, the detection assembly 33 and the repair assembly 34 enter the first section. At this time, the scraper assembly 35 rotates in the second section, and the detection assembly 33 and the repair assembly 34 are in the first section. The first section rotates, and during the 1st to 2nd revolutions, the detection assembly 33 is used to perform surface inspection on the first section and locate the damaged part. During the 2nd to 3rd revolutions, the repair assembly 34 is ready. During the 3rd to 5th revolutions, the repair mud is sprayed to the damaged part through the mud spraying box 41 and the cover plate 43 in the repair assembly 34, completing the front-end cleaning and the rear-end repair synchronously, thereby improving the maintenance efficiency, filling the joints of the refractory brick lining 23 with refractory mud completely, avoiding rapid corrosion of the refractory bricks and making them securely installed, thereby ensuring the safety of the furnace structure.

[0044] Refer to the instruction manual Figures 2 to 11 A linear motor is installed on the driving seat 31, and the driving shaft 32 includes a rotating shaft and a guide shaft. The detection component 33, the repair component 34 and the scraper component 35 are all installed on the rotating shaft. The linear motor drives the guide shaft to perform axial linear motion. A servo motor is installed at one end or inside of the guide shaft, and the servo motor drives the rotating shaft to rotate.

[0045] It should be noted that the length of the guide shaft is greater than the rotating shaft. The detection component 33, the repair component 34 and the scraper component 35 on the rotating shaft rotate synchronously. The servo motor is equipped with an angle sensor for detecting the rotation angle of the rotating shaft to assist in positioning.

[0046] Furthermore, the detection component 33 includes an infrared camera, and the infrared camera transmits data to a processing terminal, the processing terminal includes an image recognition module and a control module of a servo motor, and the center of the infrared camera and the center of the cover plate 43 are located on the same straight line.

[0047] It should be noted that the infrared camera is used to visually detect the surface of the refractory brick lining 23, upload the surface image data of the refractory brick lining 23 to the processing terminal, and compare it through the image recognition module to obtain the result of whether the surface of the refractory brick lining 23 at that location is qualified.

[0048] Furthermore, the repair component 34 includes a repair box 341, the spray mechanism 4 is installed inside the repair box 341, a linear drive 344 is installed inside the repair box 341, the linear drive 344 is used to drive the spray mechanism 4 to move laterally, a pump box 342 is installed on the repair box 341, and a control box 343 is provided on one side of the pump box 342.

[0049] It should be noted that the linear drive 344 drives the spraying mechanism 4 to move laterally out of the repair box 341 and close to the refractory brick lining 23. The pump box 342 is used to install a variety of conveying pumps, such as material pumps and air pumps. The control box 343 is used to install a controller to control the switches of electrical appliances such as material pumps, air pumps, and linear drives 344.

[0050] Furthermore, a mud chamber 411 and a pressure chamber 415 are provided inside the mud spraying box 41, and the pressure chamber 415 is connected between the mud chamber 411 and the conveying cylinder 42, and the mud chamber 411 is connected to the pump box 342 through a pipeline, and the repair mud inside the mud chamber 411 is conveyed to the conveying cylinder 42 through the pressure chamber 415.

[0051] It should be noted that the repair mud is stored inside the mud chamber 411 , and the repair mud is pumped into the pressure chamber 415 by a material pump, and the repair mud is sprayed out through the delivery tube 42 and the cover plate 43 .

[0052] Furthermore, a cooling port 412 is provided at one side of the mud chamber 411 , a feeding port 44 is provided at a side of the mud chamber 411 away from the cooling port 412 , and a cleaning port 45 is provided at one end of the mud spraying box 41 away from the conveying tube 42 .

[0053] It should be noted that the cooling port 412 is connected to a cooling device for reducing the temperature of the repair mud inside the mud cavity 411 , the feeding port 44 is used to add the repair mud into the mud cavity 411 , and the cleaning port 45 is used to clean the residual material inside the mud cavity 411 .

[0054] Furthermore, a pressurizing port 413 is opened on one side of the pressurizing chamber 415 , and a sealing cover plate 414 is hinged on the mud spraying box 41 , and the sealing cover plate 414 is used to seal the top of the mud chamber 411 and the pressurizing chamber 415 .

[0055] It should be noted that the pressurizing port 413 is connected to an external pressurizing device to adjust the internal pressure of the pressurizing chamber 415 , thereby adjusting the injection pressure of the pressurizing chamber 415 .

[0056] Furthermore, a support plate 1 421 is fixedly provided at one end of the conveying cylinder 42 , a conveying sleeve 422 is installed inside the conveying cylinder 42 , and a support plate 2 423 is fixedly provided between the conveying cylinder 42 and the support plate 1 421 .

[0057] It should be noted that the mud spraying box 41 and the conveying tube 42 are detachably connected through the support plate 1 421 and the support plate 2 423 , and pressure-maintaining conveying is performed through the conveying sleeve 422 .

[0058] Furthermore, a collecting component 36 is provided below the repairing component 34, a linear driver three 37 is installed on one side of the collecting component 36, and the linear driver three 37 is fixedly installed on the repairing component 34, a waste barrel 38 is fixedly provided at the bottom of the collecting component 36, a connecting port 361 is opened inside the collecting component 36, a positioning plate 362 is fixedly provided at one end of the collecting component 36, and two groups of positioning plates 362 are arranged opposite to each other, a linear driver two 363 is installed at one end of the collecting component 36, a squeegee plate 39 is slidably provided between the two groups of positioning plates 362, and the linear driver two 363 drives the squeegee plate 39 to move vertically.

[0059] It should be noted that the bottom of the collecting assembly 36 is open, the connecting port 361 is connected to the waste barrel 38, and the second linear drive 363 is connected to the squeegee plate 39 through the existing gear and toothed plate structure.

[0060] In this embodiment, the implementation scenario is specifically as follows: the spraying mechanism 4 is transported to the outside of the repair component 34 through the linear drive 1 344, the spraying mechanism 4 is close to the refractory brick lining layer 23, and the collection component 36 is driven by the linear drive 3 37 to be close to the refractory brick lining layer 23, and the repair mud in the mud cavity 411 is transported to the inside of the pressurizing cavity 415, and the inside of the pressurizing cavity 415 is pressurized through the pressurizing port 413 and the pressurizing device, and the repair mud is sprayed to the damaged part of the refractory brick lining layer 23 through the conveying sleeve 422 to maintain pressure and convey. The trowel plate 39 is driven to move vertically by the linear drive 2 363. The trowel plate 39 slides close to the damaged part of the refractory brick lining 23, smoothes the repair mud and scrapes off the excess repair mud. The excess repair mud falls on the collecting component 36 and then flows into the waste barrel 38 through the connecting port 361 for storage. After the cleaning work is completed, the cleaning mechanism 3 is withdrawn from the incinerator barrel 2, and the incinerator barrel 2 is started to raise the furnace temperature to 1100°C and maintain it for 10 minutes. Wait for the repair mud to completely solidify before incineration.

[0061] Refer to the instruction manual Fig.12 The present invention also provides a method for treating nuclear radiation contaminated soil by a core combustion high temperature incineration treatment device, comprising the following steps:

[0062] S1: visual inspection, using an infrared camera and an image recognition module to rotate the angle in real time to locate the damaged part of the refractory brick lining 23;

[0063] S2: according to the location of the damaged part of the refractory brick lining layer 23, the repair assembly 34 is moved to the damaged part;

[0064] S3: Start the spraying mechanism 4 and aim at the damaged part of the refractory brick lining 23 to spray the repair slurry under pressure;

[0065] S4: Smoothing the repair slurry at the damaged part of the refractory brick lining 23 through the collecting assembly 36 and recovering the remaining material;

[0066] S5: After all cleaning is completed, withdraw and raise the furnace temperature to 1100℃ and maintain for 10 minutes until the repair mud is completely solidified.

[0067] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A nuclear core combustion high temperature incineration treatment device for nuclear radioactive contaminated soil, comprising a rotary kiln seat (1), a driving mechanism (11) being installed on the rotary kiln seat (1), an incineration furnace tube (2) being installed on the driving mechanism (11), a feeding mechanism (21) and a discharging mechanism (22) being respectively provided at both ends of the incineration furnace tube (2), and the height of the feeding mechanism (21) is greater than the height of the discharging mechanism (22), and the inner wall of the incineration furnace tube (2) is paved with a refractory brick lining layer (23), characterized in that: A cleaning mechanism (3) is provided on the outer side of the rotary kiln seat (1), and the cleaning mechanism (3) is movably installed on the incineration furnace tube (2) near the discharge mechanism (22); The cleaning mechanism (3) comprises a driving seat (31), a driving shaft (32) is mounted on the driving seat (31), a detection assembly (33) and a repair assembly (34) are mounted on two sides of the driving shaft (32) opposite to each other, a scraper assembly (35) is mounted on one end of the driving shaft (32), and the detection assembly (33), the repair assembly (34) and the scraper assembly (35) are all movably arranged inside the incinerator tube (2); The repair component (34) is provided with a spraying mechanism (4), the spraying mechanism (4) comprising a mud spraying box (41), an outlet at one end of the mud spraying box (41) being connected to a cover plate (43), and the mud spraying box (41) sprays repair mud through the cover plate (43).

2. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 1, characterized in that: A linear motor is installed on the driving seat (31), the driving shaft (32) includes a rotating shaft and a guide shaft, the detection component (33), the repair component (34) and the scraper component (35) are all installed on the rotating shaft, the linear motor drives the guide shaft to perform axial linear motion, a servo motor is installed at one end or inside of the guide shaft, and the servo motor drives the rotating shaft to rotate.

3. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 2, characterized in that: The detection component (33) includes an infrared camera, and the infrared camera transmits data to a processing terminal, the processing terminal includes an image recognition module and a servo motor control module, and the center of the infrared camera and the center of the cover plate (43) are located on the same straight line.

4. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 3, characterized in that: The repair assembly (34) comprises a repair box (341), the spray mechanism (4) is installed inside the repair box (341), a linear drive (344) is installed inside the repair box (341), and the linear drive (344) is used to drive the spray mechanism (4) to move laterally. A pump box (342) is installed on the repair box (341), and a control box (343) is provided on one side of the pump box (342).

5. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 4, characterized in that: The mud spraying box (41) is provided with a mud chamber (411) and a pressurizing chamber (415) inside, and the pressurizing chamber (415) is connected between the mud chamber (411) and the conveying cylinder (42). The mud chamber (411) and the pump box (342) are connected through a pipeline, and the repair mud inside the mud chamber (411) is conveyed to the conveying cylinder (42) through the pressurizing chamber (415).

6. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 5, characterized in that: A cooling port (412) is provided on one side of the mud chamber (411), a feeding port (44) is provided on a side of the mud chamber (411) away from the cooling port (412), and a cleaning port (45) is provided on an end of the mud spraying box (41) away from the conveying tube (42).

7. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 6, characterized in that: A pressurizing port (413) is provided on one side of the pressurizing chamber (415), and a sealing cover plate (414) is hingedly connected to the mud spraying box (41), and the sealing cover plate (414) is used to seal the mud chamber (411) and the top of the pressurizing chamber (415).

8. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 7, characterized in that: A support plate 1 (421) is fixedly provided at one end of the conveying cylinder (42), a conveying sleeve (422) is installed inside the conveying cylinder (42), and a support plate 2 (423) is fixedly provided between the conveying cylinder (42) and the support plate 1 (421).

9. The device for high temperature incineration of nuclear radiation contaminated soil according to claim 8, characterized in that: A collecting component (36) is provided below the repairing component (34), a linear driver three (37) is installed on one side of the collecting component (36), and the linear driver three (37) is fixedly installed on the repairing component (34), a waste barrel (38) is fixedly provided at the bottom of the collecting component (36), a connecting port (361) is provided inside the collecting component (36), a positioning plate (362) is fixedly provided at one end of the collecting component (36), and two groups of positioning plates (362) are arranged opposite to each other, a linear driver two (363) is installed at one end of the collecting component (36), a smear plate (39) is slidably provided between the two groups of positioning plates (362), and the linear driver two (363) drives the smear plate (39) to move vertically.

10. A method for treating radioactive contaminated soil by a nuclear core combustion high temperature incineration treatment device as claimed in claim 9, characterized in that: The steps include: S1: visual inspection, using an infrared camera and an image recognition module to locate the damaged part of the refractory brick lining layer (23) by rotating the angle in real time; S2: according to the location of the damaged part of the refractory brick lining layer (23), the repair component (34) is moved to the damaged part; S3: starting the spraying mechanism (4) and aiming it at the damaged part of the refractory brick lining layer (23), and spraying the repair slurry under pressure; S4: Smoothing the repair slurry at the damaged part of the refractory brick lining layer (23) through the collecting assembly (36) and recovering the remaining material; S5: After all cleaning is completed, withdraw and raise the furnace temperature to 1100℃ and maintain for 10 minutes until the repair mud is completely solidified.

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