Radioactive incineration ash glass curing system

Abstract

A radioactive incineration ash glass solidification system comprises an incineration ash feeding module, a molten material feeding module and a conveying unit. The conveying unit comprises an incineration ash feeding position and a melt feeding position. The incineration ash feeding module is arranged above the incineration ash feeding position, and the molten material feeding module is arranged above the molten material feeding position; a furnace body is arranged on the molten material feeding position and is positioned below the molten material feeding module; the incineration ash feeding module is used for injecting radioactive incineration ash into a storage tank arranged on an incineration ash feeding position; the conveying unit is used for conveying the storage tank into which the radioactive incineration ash is injected into the furnace body; the molten material feeding module is used for injecting a molten material in a non-molten state into the storage tank arranged at the molten material feeding position; the tail gas treatment module is communicated with the molten material feeding module; and gas generated when the radioactive incineration ash in the storage tank is heated by the furnace body is purified by the tail gas treatment module.

Description

Technical Field

[0001] This invention relates to the field of nuclear waste treatment technology, and in particular to a system for solidifying radioactive incineration ash. Background Technology

[0002] The nuclear industry inevitably generates a large amount of radioactive waste during production and operation. Reducing and rendering radioactive waste harmless has become an important means of radioactive hazardous waste safety management.

[0003] Radioactive incineration ash is a high-risk waste generated during the operation of nuclear power plants and nuclear facilities, primarily originating from the incineration of radioactive combustible waste. Currently, commonly used incineration ash treatment technologies include cement solidification, vitrification, and plasma melting. Cement solidification technology is simple, reliable, and technologically mature, but it has a significant volume-increasing effect, a high nuclide leaching rate, and poor containment of incineration ash containing complex nuclides. Vitrification and melting technologies involve mixing the target waste with a flux and additives that readily form a glassy phase, treating it under high-temperature conditions. This causes the organic matter to be incinerated, gasified, or pyrolyzed, while the inorganic matter forms a homogeneous molten state. Cooling then forms a glassy substance with an amorphous structure. Its application has expanded from solidifying high-level radioactive waste liquids to the treatment and environmental remediation of other radioactive wastes, featuring low nuclide leaching rates, significant volume reduction effects, and good long-term chemical stability. However, existing glass solidification and melting technologies use metal furnaces or ceramic furnaces as furnace bodies for waste treatment. However, metal furnaces are susceptible to corrosion by waste, resulting in a short furnace life, while ceramic furnaces have technical drawbacks such as large size and high difficulty in decommissioning.

[0004] How to harmlessly treat radioactive incineration ash while simultaneously extending the service life of the metal furnaces used in glass curing technology has become a pressing technical challenge for the industry. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide a radioactive incineration ash glass solidification system that improves the service life of the furnace body.

[0006] To achieve the above objectives, this application provides a radioactive incineration ash glass curing system, comprising: Incineration ash feeding module, molten material feeding module, and conveying unit; The transmission unit includes an incinerator ash feeding station and a molten material feeding station; The incineration ash feeding module is located above the incineration ash feeding position, and the molten material feeding module is located above the molten material feeding position; A furnace body is provided at the molten material feeding position, and the furnace body is located below the molten material feeding module; The incineration ash feeding module is used to inject radioactive incineration ash into the storage tank placed at the incineration ash feeding position; The transfer unit is used to transport the storage tank containing the injected radioactive incinerator ash into the furnace body; The molten material feeding module is used to inject non-molten molten material into the storage tank located at the molten material feeding position; The exhaust gas treatment module is connected to the molten material feeding module. The gas generated when the furnace body heats the radioactive incineration ash in the storage tank is purified by the exhaust gas treatment module.

[0007] Preferably, a moving platform is also provided at the molten material feeding position. The moving platform consists of two platform bodies, which are arranged on both sides of the forward direction of the conveying unit. The furnace body consists of two half-body sections, with one half-body section corresponding to each platform body. The two half-body structures are set facing each other. When the two platform bodies move towards each other, the two half-body structures close together and restrict the storage tank located at the molten material feeding position inside the furnace. When the two halves of the body move in opposite directions, the two halves separate and release the restriction on the storage tank located at the molten material feeding position.

[0008] Preferably, the two platform bodies are movably mounted on the track; The platform moves in a direction perpendicular to the storage tank.

[0009] Preferably, the volume inside the furnace is matched with that of the storage tank; When the storage tank is confined by two half-body structures, the opening of the storage tank is located outside the furnace body.

[0010] Preferably, the transmission unit is provided with a storage tank support for placing the storage tank; When the storage tank is placed on the storage tank support, there is a gap between the storage tank and the transmission unit.

[0011] Preferably, the transmission unit further includes: A lead screw, on which a transmission slider is fitted; The storage tank support is fixed on the transmission slider. When the transmission screw rotates, the transmission slider drives the storage tank support to move.

[0012] Preferably, the molten material feeding module includes: A molten material feeding pipe that connects the molten material feeding bin to the molten material feeding interface; The molten material feeding interface matches the opening of the storage tank; The molten material feeding pipe is at least partially a telescopic pipe; A first valve is installed on the molten material feeding pipe.

[0013] Preferably, the exhaust gas treatment module includes: A heat exchanger that connects the particulate filter and the exhaust gas emission unit; The particle catcher is connected to the molten material feeding pipe via the first valve and the molten material feeding interface.

[0014] Preferably, the incineration ash feeding module includes: An incineration ash feeding pipe that connects the incineration ash feeding silo to the incineration ash feeding interface; The incineration ash feeding interface matches the opening of the storage tank; The incineration ash feeding pipeline is at least partially a telescopic pipeline; A second valve is also installed on the incineration ash feeding pipeline.

[0015] Preferably, a dust collection unit is provided between the incineration ash feeding pipe and the inlet of the particle trap; The inlet of the dust collection unit is connected to the incineration ash feeding pipe between the second valve and the incineration ash feeding interface.

[0016] The above-mentioned technical solutions not only perform vitrification treatment on radioactive incineration ash, but also improve the service life of the furnace body; the dust collection unit prevents the leakage of radioactive incineration ash when it is injected into the storage tank; the induced draft fan further improves the dust collection effect and reduces the risk of radioactive incineration ash leakage; and the exhaust gas treatment module further improves the harmless treatment capacity.

[0017] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a radioactive incineration ash vitrification system according to an embodiment of this application; Figure 2 This is a schematic diagram of the furnace body placed on a mobile platform according to an embodiment of this application.

[0019] Figure label: 10-Incineration ash feeding bin; 11-Incineration ash feeding pipe; 12-Incineration ash feeding interface; 13-Storage tank; 14-Storage tank support; 15-Transmission screw; 16-Moving platform; 161-Platform body; 17-Furnace body; 1071-Half-width body; 18-Molten material feeding bin; 19-Molten material feeding pipe; 20-Molten material feeding interface; 21-Particle catcher; 22-Dust collection unit; 23-Heat exchange cooler; 24-Torque emission unit; 25-Induced draft fan; 26-First valve; 27-Second valve; 28-Transmission slider; 29-Railway. Detailed Implementation

[0020] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0022] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0023] It should be noted that the terms "first" and "second" may be used in this application only to distinguish different devices, components or parts, and are not used to define the order of functions performed by these devices, components or parts or their interdependence.

[0024] It should be noted that the terms "one" and "more" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "More" should be understood as two or more.

[0025] The radioactive incineration ash glass curing system of this application includes: Incineration ash feeding module, molten material feeding module, and conveying unit; The transmission unit includes an incinerator ash feeding station and a molten material feeding station; The incineration ash feeding module is located above the incineration ash feeding position, and the molten material feeding module is located above the molten material feeding position; A furnace body is provided at the molten material feeding position, and the furnace body is located below the molten material feeding module; The incineration ash feeding module is used to inject radioactive incineration ash into the storage tank placed at the incineration ash feeding position; The transfer unit is used to transport the storage tank containing the injected radioactive incinerator ash into the furnace body; The molten material feeding module is used to inject non-molten molten material into the storage tank located at the molten material feeding position; The exhaust gas treatment module is connected to the molten material feeding module. The gas generated when the furnace body heats the radioactive incineration ash in the storage tank is purified by the exhaust gas treatment module.

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1 Figure 1 This is a schematic diagram of a radioactive incineration ash vitrification system according to an embodiment of this application. Figure 2 This is a schematic diagram of the furnace body placed on a moving platform according to an embodiment of this application, as shown below. Figure 1 and Figure 2 As shown, the radioactive incineration ash glass curing system of this application embodiment includes: an incineration ash feeding module, a molten material feeding module, and a transmission unit.

[0028] In one exemplary embodiment, the transmission unit includes an incineration ash feeding station and a molten material feeding station, with the incineration ash feeding module disposed above the incineration ash feeding station and the molten material feeding module disposed above the molten material feeding station.

[0029] In one exemplary embodiment, a furnace body 17 is provided at the molten material feeding position, and the furnace body 17 is located below the molten material feeding module.

[0030] In one exemplary embodiment, the incineration ash feeding module is used to inject radioactive incineration ash into the storage tank 13 located at the incineration ash feeding position.

[0031] In one exemplary embodiment, the transfer unit is used to transport the storage tank 13, which has been filled with radioactive incineration ash, into the furnace body 17.

[0032] In one exemplary embodiment, the molten material feeding module is used to inject non-molten molten material into the storage tank 13 located at the molten material feeding position.

[0033] In one exemplary embodiment, the molten material includes, for example, glass beads, water, etc.

[0034] In one exemplary embodiment, the radioactive incineration ash glass curing system of this application further includes: a tail gas treatment module, which is connected to the molten material feeding module.

[0035] In one exemplary embodiment, the exhaust gas treatment module includes a heat exchanger 23 that connects the particulate filter 21 and the exhaust gas emission unit 24.

[0036] In one exemplary embodiment, the particle catcher 21 is connected to the molten material feeding pipe via a first valve 26 and a molten material feeding interface.

[0037] In one exemplary embodiment, the gas generated when the furnace body 17 heats the radioactive incineration ash in the storage tank 13 is purified by the exhaust gas treatment module.

[0038] In one exemplary embodiment, the incineration ash feeding module includes an incineration ash feeding pipe 11 that connects the incineration ash feeding bin 10 and the incineration ash feeding interface 12.

[0039] In one exemplary embodiment, the incineration ash feeding port 12 matches the opening of the storage tank 13.

[0040] In one exemplary embodiment, the incineration ash feeding pipe 11 is at least partially a telescopic pipe.

[0041] In one exemplary embodiment, the incineration ash feeding pipe 11 is at least partially a spiral conveyor pipe.

[0042] In one exemplary embodiment, a second valve 27 is also provided on the incineration ash feeding pipe 11.

[0043] In one exemplary embodiment, the second valve 27 is provided to facilitate the closure of the radioactive incineration ash injected into the storage tank 13 from the incineration ash feeding bin 10, thereby preventing the leakage of radioactive incineration ash.

[0044] In one exemplary embodiment, the molten material feeding module includes a molten material feeding pipe 19 that connects the molten material feeding chamber 18 and the molten material feeding interface 20.

[0045] In one exemplary embodiment, the molten material feeding port 20 matches the opening of the storage tank 13.

[0046] In one exemplary embodiment, the molten material feeding pipe 19 is at least partially a telescopic pipe, such as a flexible metal hose, similar to the incinerator ash feeding pipe 11.

[0047] In an exemplary embodiment, both the incinerator ash feeding port 12 and the molten material feeding port 20 may have telescopic functions as needed. Taking the incinerator ash feeding port 12 as an example, the incinerator ash feeding port 12 is provided with a telescopic pipe inside, such as a telescopic metal hose. The upper end of the metal hose is connected to the incinerator ash feeding pipe 11, and the lower end is sealed to the opening of the storage tank 13. When it is necessary to connect the incinerator ash feeding port 12 to the storage tank 13, the metal hose inside the incinerator ash feeding port 12 extends to connect the incinerator ash feeding port 12 to the storage tank 13. When the injection of radioactive incinerator ash into the storage tank 13 is completed, the incinerator ash feeding port 12 is disconnected from the storage tank 13, and then the metal hose inside the incinerator ash feeding port 12 contracts to move the incinerator ash feeding port 12 upward away from the storage tank 13.

[0048] In one exemplary embodiment, a first valve 26 is provided on the molten material feeding pipe 19.

[0049] In an exemplary embodiment, when the molten material feeding pipe 19 and the incinerator ash feeding pipe 11 are corrugated pipe structures, the valves that are matched with them are corrugated pipe valves.

[0050] In one exemplary embodiment, the first valve 26 may also be a valve combination, such as a slide gate valve and a bellows valve, as needed. In this case, the slide gate valve is placed at the upper end of the bellows valve. The function of the slide gate valve is to block the molten material from entering the molten material feeding pipe 19 and to regulate the flow rate of the molten material in the molten material feeding pipe 19; while the bellows valve is mainly used to block the leakage of radioactive materials.

[0051] In one exemplary embodiment, the particle catcher 21 is connected to the molten material feeding pipe 19 between the first valve 26 on the molten material feeding pipe 19 and the molten material feeding interface 20.

[0052] In one exemplary embodiment, a dust collection unit 22 is provided between the inlet of the incineration ash feeding pipe 11 and the inlet of the particle trap 21; the inlet of the dust collection unit 22 is connected to the incineration ash feeding pipe 11 between the second valve 27 and the incineration ash feeding interface 12.

[0053] In one exemplary embodiment, if necessary, an induced draft fan 25 is also connected to the outlet end of the exhaust gas emission unit 24. The induced draft fan 25 keeps the exhaust gas emission unit 24 under negative pressure, which is beneficial for the collection of radioactive particulate dust and gas treatment in the incineration ash feeding pipe 11 and molten material feeding pipe 19 connected thereto.

[0054] In an exemplary embodiment, for example, the dust collection unit 22 is set up so that after the incineration ash feeding interface 12 is connected to the storage tank 13, the second valve 27 is opened to inject the radioactive incineration ash into the storage tank 13. The dust collection unit 22 is set up to facilitate the collection of particulate dust in the radioactive incineration ash and reduce the pollution of the radioactive incineration ash environment. For example, the induced draft fan 25 set at the outlet end of the exhaust gas emission unit 24 introduces the particulate dust in the radioactive incineration ash into the dust collection unit 22.

[0055] In one exemplary embodiment, a moving platform 16 is also provided at the molten material feeding position. The moving platform 16 consists of two platform bodies 161, which are arranged on both sides of the forward direction of the transmission unit.

[0056] In an exemplary embodiment, the furnace body 17 is composed of two half-body bodies 1071, with one half-body body 1071 correspondingly disposed on each platform body 161; it can be understood that the furnace body 17 has a decomposed structure, for example, the furnace body 17 is designed to be composed of two half-body bodies 1071, the half-body bodies 1071 are as if the furnace body 17 is split vertically from the central axis, and each half-body body 1071 is placed on a platform body 161 respectively.

[0057] In one exemplary embodiment, the mobile platform 16 has a matching track 29 underneath, meaning that the two half-body bodies 1071 can move in opposite directions or in opposite directions on the track 29.

[0058] In an exemplary embodiment, when the two half-body bodies 1071 move in opposite directions, the furnace body 17 closes, thus confining the storage tank 13 located at the molten material feeding position within the furnace body 17. This facilitates subsequent heating and melting of the radioactive incineration ash and molten material in the storage tank 13 within the furnace body 17. That is, when the two half-body bodies 1071 are arranged facing each other and the two platform bodies 161 move in opposite directions, the two half-body bodies 1071 close together, confining the storage tank 13 located at the molten material feeding position within the furnace body 17.

[0059] In an exemplary embodiment, when the two half-body bodies 1071 are closed together and the storage tank 13 located at the molten material feeding position is confined within the furnace body 17, a small gap is provided between the inner wall of the furnace body 17 and the storage tank 13 as needed, that is, the furnace body 17 melts the material in the storage tank 13 through thermal radiation.

[0060] In one exemplary embodiment, the furnace body 17 opens when the two half-body bodies 1071 move in opposite directions, and the two half-body bodies 1071 separate to release the restriction on the storage tank 13 located at the molten material feeding position; for example, after the melting and cooling of the molten material in the storage tank 13 located in the furnace body 17 is completed, the furnace body 17 opens, the restriction on the storage tank 13 is released, and then the storage tank 13 can be driven away from the molten material feeding position by the rotation of the transmission screw 15.

[0061] In an exemplary embodiment, when the two half-body 1071 are closed to restrict the storage tank 13, it can be understood that the furnace body wraps around the storage tank 13, and the opening of the storage tank 13 is located outside the furnace body 17; the purpose of this arrangement is to facilitate the docking of the molten material feeding interface 20 with the storage tank 13.

[0062] In one exemplary embodiment, the direction of movement of the platform body 161 is perpendicular to the direction of movement of the storage tank 13, such as... Figure 2 As shown.

[0063] In one exemplary embodiment, the movement direction of the platform body 161 is parallel to the movement direction of the furnace body 17, such as... Figure 2 As shown.

[0064] In one exemplary embodiment, the transmission unit is provided with a storage tank support 14 for placing the storage tank 13.

[0065] In one exemplary embodiment, since the storage tank 13 is specifically designed for storing radioactive incineration ash, it can be a disposable corrosion-resistant steel tank, for example, cylindrical in shape. The matching storage tank support 14 is a circular base slightly larger than the diameter of the storage tank 13. To facilitate fixing the storage tank 13 to the support 14, several cylinders are welded to the edge of the support 14, ensuring the waste tank is secured within these cylinders and preventing it from tipping over. This can be understood as the multiple cylinders around the support 14 holding the storage tank 13 in place. In one exemplary embodiment, when the multiple cylinders around the support 14 hold the storage tank 13 in place as needed, the bottom of the storage tank 13 is in contact with the upper surface of the support 14.

[0066] In one exemplary embodiment, to prevent the heating of the furnace body 17 from damaging the transmission unit when the storage tank 13 enters the furnace body 17, the heating unit inside the furnace body 17 can be positioned at the upper middle part of the storage tank 13. When the storage tank 13 is placed on the storage tank support 14, there is a gap between the storage tank 13 and the transmission unit, that is, the storage tank 13 is suspended on the transmission unit. For example, the transmission unit includes a transmission screw 15, a transmission slider 28 sleeved on the transmission screw 15, and a storage tank support 14 fixed on the transmission slider 28. When the storage tank 13 is placed on the storage tank support 14, the bottom of the storage tank 13 does not directly contact the upper surface of the storage tank support 14. This design is to reduce the temperature rise of the storage tank 13 on the transmission screw 15 and the transmission slider 28 when it is heated inside the furnace body 17.

[0067] In one exemplary embodiment, the levitation of the storage tank 13 on the transmission unit can be understood as the storage tank 13 being levitation achieved by multiple cylinders around the storage tank support 14 clamping the storage tank 13; of course, the levitation of the storage tank 13 by being clamped by multiple cylinders around the storage tank support 14 is only an option to be selected as needed.

[0068] In one exemplary embodiment, as needed, after the storage tank 13 enters the molten material feeding position along with the storage tank support 14, and the furnace body 17 is closed, the upper surface of the storage tank support 14 is flush with or slightly higher than the bottom of the furnace body. At this time, the heating unit inside the furnace body 17, for example, a heating wire, is provided inside the furnace body and is positioned upward from the upper surface of the storage tank support 14.

[0069] In one exemplary embodiment, the storage tank support 14 is fixed on the transmission slider 28. When the transmission screw 15 rotates, the transmission slider 28 drives the storage tank support 14 to move.

[0070] In an exemplary embodiment, the internal cavity of the furnace body 17 is cylindrical and is divided into a hollow layer, a furnace lining layer and a furnace shell layer from the inside out. A hole for the storage tank 13 is reserved at the top of the furnace body 17, that is, the storage tank 13 is placed in the hollow layer and the hollow layer is tightly fitted with the storage tank 13. The furnace lining layer is a refractory brick, i.e., a fiber composite structure, and the furnace lining layer is divided into a refractory layer and a heat insulation layer from the inside out.

[0071] In one exemplary embodiment, the furnace shell layer is made of high-temperature resistant steel.

[0072] In one exemplary embodiment, the heating element disposed within the hollow layer can be formed from a silicon rod element made of high-resistance alloy material, which is uniformly distributed on the inner wall of the furnace lining.

[0073] In an exemplary embodiment, the radioactive incineration ash glass curing system of this application involves placing radioactive incineration ash into the incineration ash feeding hopper 10 and sealing the hopper 10 to prevent leakage. The incineration ash feeding interface 12 is connected to the storage tank 13 located at the incineration ash feeding position, and the radioactive incineration ash in the incineration ash feeding hopper 10 is injected into the storage tank 13. After injection, the second valve 27 is closed. Once the radioactive incineration ash particles and dust are introduced into the dust collection unit 22 by the induced draft fan 25, and the radioactive incineration ash in the storage tank 13 has stabilized, the transmission screw 15 rotates, moving the storage tank 13 to the molten material feeding position. To facilitate the storage tank 13 entering the molten material feeding position, the furnace body 17 is open at this time. That is, the platform body 161 is in a split state. After the storage tank 13 enters the molten material feeding position, the two half-body bodies 1071 of the platform body 161 move towards each other and close together, restricting the storage tank 13 located at the molten material feeding position inside the furnace body 17. The opening of the storage tank 13 is located outside the furnace body 17. At this time, the molten material feeding interface 20 is connected to the opening of the storage tank 13. After the connection is completed, the glass beads, water and other molten materials in the molten material feeding bin 18 are injected into the storage tank 13. Then the heating module is started to heat the storage tank 13 in the furnace body 17 until the molten material in the storage tank 13 is completely melted and the heating is stopped. After the storage tank 13 cools down, the radioactive incineration ash in the storage tank 13 melts together with the molten material and solidifies inside the storage tank 13.

[0074] In one exemplary embodiment, after the storage tank 13 has cooled, the platform body 161 moves in opposite directions to open the furnace body 17, and the transmission screw 15 rotates in the opposite direction to remove the storage tank 13 from the molten material feeding position, and then enters the next cycle.

[0075] In one exemplary embodiment, while the furnace body 17 is heating the storage tank 13, the exhaust gas treatment module remains connected to the storage tank 13, and the gas generated by the heating is purified and particulate matter is collected by the exhaust gas treatment module.

[0076] In an exemplary embodiment, a weighing unit is provided at the bottom of both the incineration ash feeding silo 10 and the molten material feeding silo 18 as needed, for controlling the weight of the material entering the storage tank 13. That is, the on / off state of the incineration ash feeding pipe 11 or the molten material feeding pipe 19 can be controlled according to the data from the weighing unit.

[0077] In one exemplary embodiment, when the incineration ash feeding pipe 11 is a spiral pipe, the spiral pipe can be driven by a drive motor, and the radioactive incineration ash can be continuously and smoothly fed into the storage tank 13 by spiral conveying, thereby reducing the occurrence of blockage in the incineration ash feeding pipe 11.

[0078] In one exemplary embodiment, the storage tank 13, while meeting the requirements of corrosion resistance, also needs to have good thermal conductivity, such as being able to withstand high temperatures of 1000 degrees Celsius, since it needs to be heated inside the furnace body 17, and is required to be free from manufacturing or welding defects to prevent leakage of radioactive incineration ash.

[0079] In one exemplary embodiment, although there is a certain distance between the heating unit and the transmission screw 15 when heating inside the furnace body 17, in order to improve the service life, the transmission screw 15 is required to be made of high-temperature resistant alloy steel to ensure that it does not deform under heat and to extend its service life.

[0080] In one exemplary embodiment, the storage tank 13 in this application embodiment requires a certain degree of sealing when it is connected to the incineration ash feeding interface 12 and the molten material feeding interface 20.

[0081] It will be understood by those skilled in the art that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A system for solidifying radioactive incineration ash glass, characterized in that, include: Incineration ash feeding module, molten material feeding module, and conveying unit; The transmission unit includes an incineration ash feeding station and a molten material feeding station; The incineration ash feeding module is located above the incineration ash feeding position, and the molten material feeding module is located above the molten material feeding position; A furnace body is provided at the molten material feeding position, and the furnace body is located below the molten material feeding module; The incineration ash feeding module is used to inject radioactive incineration ash into the storage tank placed at the incineration ash feeding position; The transmission unit is used to transport the storage tank, after the radioactive incineration ash has been injected, into the furnace body; The molten material feeding module is used to inject non-molten molten material into the storage tank located at the molten material feeding position; An exhaust gas treatment module, which is connected to the molten material feeding module; The gas generated when the furnace body heats the radioactive incineration ash in the storage tank is purified by the exhaust gas treatment module.

2. The radioactive incineration ash vitrification system according to claim 1, characterized in that, A moving platform is also provided at the molten material feeding position. The moving platform consists of two platform bodies, which are arranged on both sides of the forward direction of the transmission unit. The furnace body is composed of two half-body sections, with one half-body section correspondingly set on each platform body. The two half-body structures are arranged facing each other. When the two platform bodies move towards each other, the two half-body structures close together and restrict the storage tank located at the molten material feeding position within the furnace body. When the two halves of the body move in opposite directions, the two halves of the body separate and release the restriction on the storage tank located at the molten material feeding position.

3. The radioactive incineration ash vitrification system according to claim 2, characterized in that, The two platform bodies are movably mounted on the track; The direction of movement of the platform body is perpendicular to the direction of movement of the storage tank.

4. The radioactive incineration ash vitrification system according to claim 2, characterized in that, The volume inside the furnace body matches that of the storage tank; When the two halves of the body restrict the storage tank, the opening of the storage tank is located outside the furnace body.

5. The radioactive incineration ash vitrification system according to claim 1, characterized in that, The transmission unit is provided with a storage tank support, which is used to place the storage tank. When the storage tank is placed on the storage tank support, there is a gap between the storage tank and the transmission unit.

6. The radioactive incineration ash vitrification system according to claim 5, characterized in that, The transmission unit further includes: A lead screw, on which a transmission slider is fitted; The storage tank support is fixed on the transmission slider. When the transmission screw rotates, the transmission slider drives the storage tank support to move.

7. The radioactive incineration ash vitrification system according to claim 1, characterized in that, The molten material feeding module includes: A molten material feeding pipe that connects the molten material feeding bin to the molten material feeding interface; The molten material feeding port matches the opening of the storage tank; The molten material feeding pipe is at least partially a telescopic pipe; The molten material feeding pipe is equipped with a first valve.

8. The radioactive incineration ash vitrification system according to claim 7, characterized in that, The exhaust gas treatment module includes: A heat exchanger that connects the particulate filter and the exhaust gas emission unit; The particle catcher is connected to the molten material feeding pipe via the first valve and the molten material feeding interface.

9. The radioactive incineration ash vitrification system according to claim 8, characterized in that, The incineration ash feeding module includes: An incineration ash feeding pipe that connects the incineration ash feeding silo to the incineration ash feeding interface; The incineration ash feeding interface matches the opening of the storage tank; The incineration ash feeding pipe is at least partially a telescopic pipe; A second valve is also installed on the incineration ash feeding pipeline.

10. The radioactive incineration ash vitrification system according to claim 9, characterized in that, A dust collection unit is provided between the incineration ash feeding pipe and the inlet of the particle trap; The inlet of the dust collection unit is connected to the incineration ash feeding pipe between the second valve and the incineration ash feeding interface.

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