Radioactive slurry microwave curing treatment device

Abstract

The invention belongs to the technical field of waste treatment, and discloses a radioactive slurry microwave curing treatment device which comprises the following steps: a waste liquid recycling device: performing centralized treatment on slurry waste, collecting waste liquid and feeding the waste liquid into a microwave evaporation furnace; after the waste liquid is recycled, the slurry enters the microwave evaporation furnace through an efficient conveying pipeline, and the microwave evaporation furnace removes moisture in the slurry through microwave heating; the glass raw material adding device is used for uniformly mixing the dried slurry dry material with a glass raw material in a preset proportion in a mixing screw mechanism to form a material suitable for melting; the mixed materials are conveyed into the microwave melting furnace through a screw; rapidly heating the materials to 1400 DEG C by utilizing microwave heating; in the microwave secondary combustion chamber, tail gas generated in the melting process enters the microwave secondary combustion chamber, and secondary heating is carried out to remove harmful substances such as dioxin in the tail gas; according to the tail gas treatment device, after passing through the microwave secondary combustion chamber, dust in tail gas is removed through a dust removal device and a spraying device, and cleanliness of exhausted gas is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of waste treatment, and in particular relates to a radioactive mud microwave solidification treatment device. Background Art

[0002] Radioactive mud is a key issue that needs to be solved in the field of radioactive pollution prevention and control. It mainly comes from radioactive nuclide sediments produced in the process of uranium mining, hydrometallurgy, nuclear fuel manufacturing and reactor operation, and is an important source of global radioactive pollution. At present, the cumulative storage volume of medium and high radioactive mud in the world has exceeded 3 million cubic meters. Radioactive mud contains a variety of radioactive nuclides and heavy metal pollutants such as radium, uranium, and thorium. It has the characteristics of long life and strong dispersibility. Its potential hazards not only pose a long-term threat to the ecological environment, but also bring immeasurable losses to economic development and public health. Converting radioactive mud into a stable solid body and ensuring the long-term isolation of nuclides from the biosphere has become an important part of radioactive pollution control.

[0004] At present, radioactive mud solidification technology mainly includes cement solidification and glass solidification, but both have significant technical bottlenecks. Cement solidification technology has a short life, low strength, and high leaching rate of the solidified body, which is easy to break and leak under the action of external forces, posing a long-term threat to the environment; while glass solidification technology faces problems such as high energy consumption, long sintering time, and poor uniformity, resulting in insufficient chemical stability of the solidified body. The limitations of the above technologies have seriously restricted the effect of radioactive mud solidification treatment. Developing new solidification technologies, improving the performance of the solidified body and achieving long-term safe isolation have become the key to radioactive mud management.

[0005] Microwave curing technology has shown broad prospects in the fields of inorganic material processing and ceramic sintering due to its advantages such as fast heating speed, low energy consumption and short sintering time. The application of microwave technology to radioactive mud curing can improve the uniformity and corrosion resistance of the solidified body, while achieving mud volume reduction. However, the microwave curing technology of radioactive mud is still in the theoretical research stage, and key scientific issues remain to be resolved. In-depth research on the microwave action mechanism, establishment of stability models, optimization of solidified body performance, and development of engineering equipment are important breakthroughs in achieving efficient treatment of radioactive mud and environmental safety. Summary of the invention

[0006] In view of the problems existing in the prior art, the present invention provides a radioactive mud microwave solidification treatment device.

[0007] The present invention is implemented as follows: a radioactive mud microwave solidification treatment device, comprising:

[0008] Waste liquid recovery device: Centralize the treatment of medium / high level mud waste, collect the waste liquid and send it to the microwave evaporation furnace.

[0009] Microwave evaporation furnace: After the waste liquid is retrieved, the mud enters the microwave evaporation furnace through the high-efficiency conveying pipeline. The microwave evaporation furnace uses microwave heating to remove the moisture in the mud. The water vapor is discharged by the tail gas treatment device, and the evaporated mud dry material is conveyed to the mixing spiral mechanism through the spiral.

[0010] Glass raw material adding device: the dried mud dry material and the glass raw material of the preset proportion are evenly mixed in the mixing spiral mechanism to form a material suitable for melting.

[0011] Microwave melting furnace: The mixed materials are conveyed into the microwave melting furnace by screw conveyor. The materials are quickly heated to 1400℃ by microwave heating to reach a molten state. The molten mixture flows into the glass liquid storage tank in an overflow manner.

[0012] Microwave secondary combustion chamber: The tail gas generated during the melting process enters the microwave secondary combustion chamber for secondary heating to remove harmful substances such as dioxins in the tail gas.

[0013] Tail gas treatment device: After passing through the microwave secondary combustion chamber, the dust in the tail gas is removed by the dust removal device and the spray device to ensure the cleanliness of the exhaust gas. The treated tail gas is discharged into the air by the fan, which meets the environmental emission standards.

[0014] Furthermore, the waste liquid retrieval device is at the forefront of the system, which is used to collect and centrally treat medium / high radioactive mud waste liquid. The retrieval device transports the waste liquid to the microwave evaporation furnace through the connected delivery pipeline. The device ensures the effective collection and accurate delivery of mud waste liquid, providing a continuous and stable waste liquid source for subsequent treatment.

[0015] Furthermore, the waste liquid recovery device is connected to the microwave evaporation furnace, and the mud is transported to the microwave evaporation furnace through a pipeline. The working principle of the microwave evaporation furnace is to use microwaves to heat the mud to remove moisture. The characteristic of microwave heating is that it can evaporate moisture efficiently in a short time to dry the mud. A spiral conveying device is provided at the bottom of the evaporation furnace to transport the evaporated mud dry material to the mixing spiral mechanism. At the same time, the water vapor generated by evaporation is collected and discharged by the exhaust gas treatment device, thereby reducing the moisture inside the system and ensuring the dryness of the treatment environment.

[0016] Furthermore, the dried slurry enters the mixing spiral mechanism and is evenly mixed with the glass raw material in a preset ratio. The glass raw material adding device is connected to the mixing spiral mechanism, and the ratio controller is used to ensure the accurate ratio of the glass raw material and the slurry dry material. The process ensures the uniform mixing of the two materials through spiral stirring to generate a mixed material suitable for microwave melting. The uniformity of mixing plays a key role in the subsequent melting effect.

[0017] Further, the mixture enters the microwave melting furnace through a screw conveyor. The microwave melting furnace uses microwave heating technology to quickly heat the mixture to 1400°C, making it completely molten. In this high temperature environment, the mud and the glass raw material merge to form molten glass. The melting furnace adopts an overflow design to ensure that the molten mixture automatically flows into the glass liquid storage tank through the overflow port to avoid excessive molten material accumulation affecting the temperature balance in the furnace.

[0018] Furthermore, the tail gas (including harmful substances such as dioxins) generated during the melting process flows into the microwave secondary combustion chamber through a pipeline. The secondary combustion chamber oxidizes and decomposes the harmful substances remaining in the tail gas through secondary microwave heating. The secondary combustion process significantly reduces the pollutant content in the tail gas, especially has a highly effective removal effect on harmful substances such as dioxins. The tail gas outlet of the secondary combustion chamber is connected to the tail gas treatment device, and the treated tail gas is transmitted to the next step of the filtration device.

[0019] Furthermore, the tail gas outlet of the microwave secondary combustion chamber is connected to the tail gas treatment device, which includes a dust removal and spraying system. The tail gas first passes through the dust removal device to remove solid dust particles in the tail gas, and then enters the spraying device to further remove residual pollutants and particles in the tail gas. After multi-stage treatment, the clean tail gas is discharged into the air through the fan, which meets the environmental emission standards. The tail gas treatment device is connected to the atmospheric discharge port, which ensures that the emissions are clean and environmentally friendly.

[0020] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0021] First, the technical solution of the present invention realizes efficient and safe solidification treatment of medium / high radioactive mud, and its technical effects include:

[0022] 1. Improve processing efficiency: Microwave heating can remove moisture and melt, and the processing speed is faster, which improves the overall efficiency of mud processing compared with traditional methods.

[0023] 2. Improve safety and environmental protection: After the mud and glass raw materials are melted together, the radioactive mud is solidified in the glass matrix to prevent secondary pollution; the secondary combustion chamber and the exhaust gas treatment device can effectively remove harmful substances in the exhaust gas and meet environmental emission standards.

[0024] 3. Reduce equipment loss: Microwave heating is uniform and efficient, which reduces thermal shock to the equipment, extends the service life of the equipment, and reduces maintenance and operating costs.

[0025] 4. Reduce the volume of radioactive waste: Drying and melting after evaporation of water can significantly reduce the volume of waste, making it easier for subsequent storage and treatment.

[0026] Second, the present invention mainly solves several key problems in the treatment of medium / high radioactive mud:

[0027] 1. Efficient water removal: Traditional heating methods are difficult to quickly remove water from mud. Microwave heating can evaporate water efficiently in a short time, reduce the volume of mud, and thus reduce processing costs and equipment pressure.

[0028] 2. Safe solidification of radioactive mud: By melting the mud with glass raw materials, the radioactive mud can be solidified in the glass matrix to avoid the diffusion of radioactive substances, thereby improving the safety of treatment.

[0029] 3. Pollutant control in tail gas treatment: During the melting process, the microwave secondary combustion chamber can effectively remove harmful substances such as dioxins. The tail gas meets the emission standards after dust removal and spraying treatment, thus solving the tail gas pollution problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a working flow chart of a radioactive mud microwave curing treatment device provided by an embodiment of the present invention;

[0031] Figure 2 is a stereoscopic diagram of a radioactive mud microwave curing treatment device provided by an embodiment of the present invention;

[0032] Figure 3 This is a front view of a radioactive mud microwave curing treatment device provided by an embodiment of the present invention;

[0033] In the figure: 1. Waste liquid recovery device; 2. Microwave evaporation furnace; 3. Glass raw material adding device; 4. Microwave melting furnace; 5. Microwave secondary combustion chamber; 6. Tail gas treatment device. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] like Figure 1 As shown, the medium / high-pressure mud treatment system is equipped with a waste liquid recovery device 1, a microwave evaporation furnace 2, a glass raw material adding device 3, a microwave melting furnace 4, a microwave secondary combustion chamber 5, a glass liquid storage tank, and an exhaust gas treatment device 6.

[0036] Step 1: The mud is first concentrated through the waste liquid recovery device 1, and then the mud is directly guided to the microwave evaporation furnace 2 through the high-efficiency conveying pipeline. The function of the microwave evaporation furnace 2 is to remove the moisture in the mud by microwave heating. The generated mud dry material is conveyed to the mixing spiral mechanism by the spiral, and the water vapor is discharged by the tail gas treatment device 6;

[0037] Step 2: The slurry dry material and the glass raw material are mixed in a certain ratio and conveyed to the microwave melting furnace 4 through a screw;

[0038] Step 3: The mixture of the slurry dry material and the glass raw material is rapidly heated to 1400°C under the action of microwave heating, reaches a molten state, and flows into the glass solution storage tank in the form of overflow;

[0039] In the fourth step, the tail gas generated during melting passes through the microwave secondary combustion chamber 5 to remove harmful substances such as dioxins in the tail gas, and the dust is removed by the dust removal device and the spray device, and the clean tail gas is discharged into the air through the fan.

[0040] like Figure 2 , Figure 3 As shown, the present invention uses microwave heating technology and multi-stage processing equipment to gradually process medium / high radioactive mud waste to achieve safe and efficient mud waste solidification. The processing process of the system is as follows:

[0041] Waste liquid recovery device 1: Centrally treat medium / high level mud waste, collect waste liquid and send it to microwave evaporation furnace 2.

[0042] Microwave evaporation furnace 2: After the waste liquid is retrieved, the mud enters the microwave evaporation furnace 2 through the high-efficiency conveying pipeline. The microwave evaporation furnace 2 uses microwave heating to remove the moisture in the mud. The water vapor is discharged by the tail gas treatment device 6, and the evaporated mud dry material is conveyed to the mixing screw mechanism through the screw.

[0043] Glass raw material adding device 3: the dried mud dry material and the glass raw material of the preset proportion are uniformly mixed in the mixing spiral mechanism to form a material suitable for melting.

[0044] Microwave melting furnace 4: The mixed materials are conveyed into the microwave melting furnace 4 by screw conveyor. The materials are quickly heated to 1400°C by microwave heating to reach a molten state. The molten mixture flows into the glass liquid storage tank in an overflow manner.

[0045] Microwave secondary combustion chamber 5: The tail gas generated during the melting process enters the microwave secondary combustion chamber 5 and is heated for a second time to remove harmful substances such as dioxins in the tail gas.

[0046] Tail gas treatment device 6: After passing through the microwave secondary combustion chamber 5, the dust in the tail gas is removed by the dust removal device and the spray device to ensure the cleanliness of the exhaust gas. The treated tail gas is discharged into the air by the fan, which meets the environmental emission standards.

[0047] Working principle of medium / high pressure mud treatment system:

[0048] 1. Waste liquid recovery device 1

[0049] The waste liquid retrieval device 1 is at the front end of the system, and is used to collect and centrally treat medium / high radioactive mud waste liquid. The retrieval device transports the waste liquid to the microwave evaporation furnace 2 through the connected conveying pipeline. The device ensures the effective collection and accurate transportation of mud waste liquid, and provides a continuous and stable waste liquid source for subsequent treatment.

[0050] 2. Microwave evaporation furnace 2

[0051] The waste liquid recovery device 1 is connected to the microwave evaporation furnace 2, and the mud is transported to the microwave evaporation furnace 2 through a pipeline. The working principle of the microwave evaporation furnace 2 is to use microwaves to heat the mud to remove moisture. The characteristic of microwave heating is that it can evaporate moisture efficiently in a short time to dry the mud. A spiral conveying device is provided at the bottom of the evaporation furnace to transport the evaporated mud dry material to the mixing spiral mechanism. At the same time, the water vapor generated by evaporation is collected and discharged by the exhaust gas treatment device 6, thereby reducing the moisture inside the system and ensuring the dryness of the treatment environment.

[0052] 3. Glass raw material adding device 3

[0053] The dried slurry enters the mixing spiral mechanism and is evenly mixed with the glass raw material in a preset ratio. The glass raw material adding device 3 is connected to the mixing spiral mechanism, and the ratio controller is used to ensure the accurate ratio of the glass raw material and the slurry dry material. The process ensures the uniform mixing of the two materials through spiral stirring to generate a mixed material suitable for microwave melting. The uniformity of mixing plays a key role in the subsequent melting effect.

[0054] 4. Microwave melting furnace 4

[0055] The mixture enters the microwave melting furnace 4 through a screw conveyor. The microwave melting furnace 4 rapidly heats the mixture to 1400°C through microwave heating technology to make it completely molten. In this high temperature environment, the mud and the glass raw material merge to form molten glass. The melting furnace adopts an overflow design to ensure that the molten mixture automatically flows into the glass liquid storage tank through the overflow port to avoid excessive molten material accumulation affecting the temperature balance in the furnace.

[0056] 5. Microwave secondary combustion chamber 5

[0057] The tail gas (including harmful substances such as dioxins) generated during the melting process flows into the microwave secondary combustion chamber 5 through a pipeline. The secondary combustion chamber oxidizes and decomposes the harmful substances remaining in the tail gas through secondary microwave heating. The secondary combustion process significantly reduces the pollutant content in the tail gas, especially has a highly efficient removal effect on harmful substances such as dioxins. The tail gas outlet of the secondary combustion chamber is connected to the tail gas treatment device 6, and the treated tail gas is transmitted to the next step of the filtering device.

[0058] 6. Exhaust gas treatment device 6

[0059] The tail gas outlet of the microwave secondary combustion chamber 5 is connected to the tail gas treatment device 6, which includes a dust removal and spraying system. The tail gas first passes through the dust removal device to remove solid dust particles in the tail gas, and then enters the spraying device to further remove residual pollutants and particles in the tail gas. After multi-stage treatment, the clean tail gas is discharged into the air through a fan, which meets environmental emission standards. The tail gas treatment device 6 is connected to the atmospheric discharge port, and by ensuring that the emissions are clean, it achieves environmental friendliness.

[0060] The various devices in the system are connected through conveying pipes, spiral transmission and overflow design, achieving the continuity and effectiveness of waste liquid recovery, drying, mixing, melting and exhaust gas purification.

[0061] The following are two specific embodiments of the medium / high pressure mud processing system:

[0062] Example 1: Treatment of radioactive slurry waste in nuclear power plants

[0063] During the operation of a nuclear power plant, the medium / high radioactive mud waste generated needs to be safely handled to prevent the spread of radioactive substances. In this scenario, the processing system of the present invention can be used in the mud waste processing station inside the nuclear power plant:

[0064] 1. Waste liquid collection and transportation: The waste liquid recovery device 1 collects the mud waste liquid containing radioactive substances in the cooling system and cleaning process of the nuclear power plant, and transports it to the microwave evaporation furnace 2 through a sealed pipeline after concentration.

[0065] 2. Drying and mixing: In the microwave evaporation furnace 2, the water in the mud waste is quickly evaporated by microwave heating, and the dried mud is mixed with the glass raw material in proportion through spiral conveying.

[0066] 3. Melting and solidification: The mixture enters the microwave melting furnace 4 and forms a glassy solid body at high temperature, thereby stably sealing the radioactive material in the glass matrix. The molten glassy waste overflows into the storage tank for centralized storage.

[0067] 4. Tail gas treatment: The harmful tail gas generated during the melting process passes through the microwave secondary combustion chamber 5 and the tail gas treatment device 6 to remove harmful substances such as dioxins, and is discharged after meeting the standards.

[0068] This embodiment can directly process radioactive mud waste inside a nuclear power plant, achieve volume reduction of the mud and safe solidification of radioactive materials, and reduce potential pollution risks to the surrounding environment.

[0069] Example 2: Centralized treatment system for radioactive waste treatment center

[0070] In the radioactive waste treatment center, it is necessary to treat the slurry waste containing medium / high radioactive materials collected from various places. The application of this system in the treatment center is as follows:

[0071] 1. Centralized waste liquid treatment: Medium / high-level waste mud from different sources is collected and sorted, concentrated using a waste liquid recovery device 1, and then sent to a microwave evaporation furnace 2.

[0072] 2. Water removal: In the microwave evaporation furnace 2, the water in the waste liquid is removed by microwave heating to reduce the waste volume, and the mud dry material is transported to the mixing mechanism by screw conveying.

[0073] 3. Mixing and glass solidification: The dry mud material and the raw glass material are mixed in a mixing screw mechanism according to a preset ratio, and after ensuring uniformity, they are sent to the microwave melting furnace 4 for high-temperature melting. The molten glass solidification body is convenient for safe storage and further disposal.

[0074] 4. Tail gas emission control: The tail gas generated during the treatment process is treated by high temperature in the secondary combustion chamber and then enters the tail gas treatment device 6. After dust removal and spraying treatment, it finally meets the emission standards.

[0075] This embodiment is suitable for centralized treatment of medium / high radioactive mud waste from different sources, and has the advantages of high treatment efficiency, strict emission control, and stable solidification effect, and provides a reliable technical solution for regional radioactive waste management.

[0076] The following is a systematic approach for the treatment of medium / high radioactive slurry waste, based on microwave heating technology and multi-stage treatment devices to achieve efficient solidification of waste:

[0077] 1. Waste liquid recovery and centralized treatment

[0078] The waste liquid retrieval device 1 is used to centrally collect medium / high-level radioactive mud waste.

[0079] The waste liquid is guided to the microwave evaporation furnace 2 through a sealed conveying pipe to prepare for subsequent treatment.

[0080] 2. Microwave evaporation and drying treatment

[0081] The waste mud liquid is input into the microwave evaporation furnace 2, and microwave heating is started to remove the moisture in the mud.

[0082] The water is discharged in the form of water vapor through the tail gas treatment device 6, and the evaporated dry mud material is transported to the mixing device through the screw conveying mechanism.

[0083] 3. Adding and mixing glass raw materials

[0084] The glass raw material adding device 3 is used to uniformly mix the dried mud dry material and the glass raw material according to a preset ratio.

[0085] The mixed materials are conveyed to the microwave melting furnace 4 by a screw conveying device to ensure the uniformity and adaptability of the materials.

[0086] 4. Microwave melting and glass solidification

[0087] The mixed material is heated by microwaves in the microwave melting furnace 4, so that its temperature is rapidly raised to 1400° C., forming a molten glassy mixture.

[0088] The molten glass waste automatically flows into the glass storage tank by overflow for storage and cooling.

[0089] 5. Exhaust treatment and emission control

[0090] The harmful tail gas generated during the melting process enters the microwave secondary combustion chamber 5 for secondary heating to remove harmful substances such as dioxins.

[0091] The exhaust gas passes through the dust removal device and the spraying device to further remove the dust and residual pollutants.

[0092] The treated exhaust gas is discharged into the air through a fan to ensure compliance with environmental emission standards.

[0093] 6. Waste storage and safety management

[0094] The melted and solidified glass waste is stored in a glass liquid storage tank to ensure the safe containment of radioactive materials.

[0095] Move the storage tanks to a secure storage area and regularly monitor the condition of the waste to ensure its long-term safety.

[0096] Microwave heating control: Precisely control microwave power and temperature in evaporation and melting furnaces to ensure rapid water removal and uniform melting of mixed materials.

[0097] Proportional mixing control: The ratio of glass raw material and mud dry material is accurately set by automatic control device to ensure the stability of glass matrix after melting and meet the treatment requirements of different waste materials.

[0098] Exhaust emission monitoring: Multi-stage sensors are installed at the exhaust treatment device 6 and the exhaust port to monitor harmful components in the exhaust in real time to ensure that the emissions meet environmental standards.

[0099] This method achieves efficient evaporation, solidification and safe storage of medium / high radioactive mud waste through the combination of microwave heating and multi-stage processing equipment. Each step is closely connected, which can effectively reduce the volume of radioactive waste, while sealing the radioactive material in a stable glass matrix, providing a waste management solution that meets environmental standards.

[0100] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0101] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A radioactive mud microwave curing treatment device, characterized in that: include: Waste liquid recovery device: centrally treat medium / high level waste mud, collect waste liquid and send it to microwave evaporation furnace; Microwave evaporation furnace: After the waste liquid is retrieved, the mud enters the microwave evaporation furnace through the high-efficiency conveying pipeline. The microwave evaporation furnace uses microwave heating to remove the moisture in the mud; the water vapor is discharged by the tail gas treatment device, and the evaporated mud dry material is conveyed to the mixing spiral mechanism through the spiral; Glass raw material adding device: the dried mud dry material and the glass raw material of the preset proportion are evenly mixed in the mixing spiral mechanism to form a material suitable for melting; Microwave melting furnace: The mixed materials enter the microwave melting furnace through spiral conveyor; the materials are quickly heated to 1400℃ by microwave heating to reach a molten state; the molten mixture flows into the glass liquid storage tank in an overflow manner; Microwave secondary combustion chamber: The tail gas generated during the melting process enters the microwave secondary combustion chamber for secondary heating to remove harmful substances such as dioxins in the tail gas; Tail gas treatment device: After passing through the microwave secondary combustion chamber, the dust in the tail gas is removed by the dust removal device and the spray device to ensure the cleanliness of the exhaust gas; the treated tail gas is discharged into the air by the fan, which meets the environmental emission standards.

2. The radioactive mud microwave curing treatment device according to claim 1, characterized in that: The waste liquid retrieval device is at the front end of the system, and is used to collect and centrally treat medium / high radioactive mud waste liquid; the retrieval device transports the waste liquid to the microwave evaporation furnace through the connected conveying pipeline; the device ensures the effective collection and precise transportation of mud waste liquid, providing a continuous and stable waste liquid source for subsequent treatment.

3. The radioactive mud microwave curing treatment device according to claim 1, characterized in that: The waste liquid recovery device is connected to the microwave evaporation furnace, and the mud is transported to the microwave evaporation furnace through a pipeline; the working principle of the microwave evaporation furnace is to use microwaves to heat the mud to remove moisture; the characteristic of microwave heating is that it can efficiently evaporate moisture in a short time to dry the mud; a spiral conveying device is provided at the bottom of the evaporation furnace to transport the evaporated mud dry material to the mixing spiral mechanism; at the same time, the water vapor generated by evaporation is collected and discharged by the exhaust gas treatment device, thereby reducing the moisture inside the system and ensuring the dryness of the treatment environment.

4. The radioactive mud microwave curing treatment device according to claim 1, characterized in that: The dried mud dry material enters the mixing spiral mechanism and is evenly mixed with the glass raw material in a preset ratio; the glass raw material adding device is connected to the mixing spiral mechanism, and the precise ratio of the glass raw material and the mud dry material is ensured through a proportion controller; this process ensures the uniform mixing of the two materials through spiral stirring to generate a mixed material suitable for microwave melting; the uniformity of mixing plays a key role in the subsequent melting effect.

5. The radioactive mud microwave curing treatment device according to claim 1, characterized in that: The mixture enters the microwave melting furnace through a screw conveyor; the microwave melting furnace quickly heats the mixture to 1400°C through microwave heating technology to make it reach a completely molten state; under this high temperature environment, the mud and the glass raw material merge to form molten glass liquid; the melting furnace adopts an overflow design to ensure that the molten mixture automatically flows into the glass liquid storage tank through the overflow port, avoiding the accumulation of excessive molten material affecting the temperature balance in the furnace.

6. The radioactive mud microwave curing treatment device according to claim 1, characterized in that: The tail gas generated during the melting process flows into the microwave secondary combustion chamber through a pipeline; the secondary combustion chamber oxidizes and decomposes the harmful substances remaining in the tail gas through secondary microwave heating; the secondary combustion process significantly reduces the pollutant content in the tail gas, especially has a high efficiency in removing harmful substances such as dioxins; the tail gas outlet of the secondary combustion chamber is connected to the tail gas treatment device, and the treated tail gas is transmitted to the next step of filtering device.

7. The radioactive mud microwave curing treatment device according to claim 1, characterized in that: The exhaust gas outlet of the microwave secondary combustion chamber is connected to the exhaust gas treatment device, which includes a dust removal and spray system; the exhaust gas first passes through the dust removal device to remove solid dust particles in the exhaust gas, and then enters the spray device to further remove residual pollutants and particulates in the exhaust gas; after multi-stage treatment, the clean exhaust gas is discharged into the air through the fan, which meets environmental emission standards; the exhaust gas treatment device is connected to the atmospheric emission port, which ensures that the emissions are clean, thereby achieving environmental friendliness.

Images