Equipment for simulating high-radioactivity waste liquid

Abstract

The invention discloses high-radioactivity waste liquid simulation equipment, belongs to the technical field of high-radioactivity waste liquid treatment, and particularly relates to the high-radioactivity waste liquid simulation equipment which comprises a first stirring tank, at least two sets of second stirring tanks and a feeding pipeline, the first stirring tank is connected to a water supply mechanism, and a first discharging opening is formed in the first stirring tank; the second stirring tank is connected to the water supply mechanism, and the second stirring tank is provided with a second discharge port; the second discharging opening is connected to an inlet of the feeding pipeline, and an outlet of the feeding pipeline is connected to the first stirring tank. The first stirring tank is used for stirring and mixing part of materials, the second stirring tank is used for stirring and mixing part of materials, and the materials stirred and mixed by the second stirring tank are guided into the first stirring tank to be continuously stirred and mixed, so that materials with different components can be flexibly adapted, the uniformity of a solution is ensured, and the deviation from real waste liquid is reduced; and thus, the consistency of the simulated high-radioactivity waste liquid and the real waste liquid is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-level radioactive waste treatment, and in particular to an apparatus for simulating high-level radioactive waste. Background Art

[0002] In the process of spent fuel reprocessing in the nuclear energy industry, high-level radioactive waste (HLW) with high radioactive concentration, significant heat release rate, and strong toxicity is generated. Such waste liquid not only has fluidity and strong corrosiveness, but also contains some artificial radionuclides (such as minor actinides and long-lived fission products) that do not exist in nature, thus posing a very high hazard to the environment and organisms. To achieve safe disposal, it is necessary to convert the HLW into a solidified body with high chemical stability and strong mechanical strength (such as borosilicate glass) for subsequent temporary storage and deep geological disposal. At present, the glass solidification technology has become the mainstream solution for HLW treatment recognized internationally, and the first glass solidification facility in China has been successfully applied in engineering, verifying the feasibility of this technology.

[0003] Before the glass solidification facility is put into operation, it is necessary to verify the system performance through cold tests, including key processes such as waste liquid transportation, glass melting, and solidified body forming. However, due to the extremely strong radioactivity and the presence of non-natural nuclides in the real HLW, there are technical obstacles and safety risks in directly using it for cold tests. Therefore, it is necessary to prepare a simulated waste liquid in which radioactive nuclides are replaced by non-radioactive isotopes and the chemical composition is the same as that of the real waste liquid. For example, by replacing curium (Cm) with stable isotope europium (Eu), plutonium (Pu) with gadolinium (Gd), etc., to reproduce the chemical behavior and physicochemical properties of key elements in the waste liquid.

[0004] Existing apparatuses for preparing simulated waste liquid have significant defects: on the one hand, due to the differences in the components of waste liquid generated by different reprocessing processes (such as nitrate system and sulfate system), it is difficult for existing apparatuses to flexibly adapt to complex and variable waste liquid formulas; on the other hand, precipitates (such as phosphate precipitate) are easily generated during the preparation of simulated waste liquid, resulting in a decrease in the uniformity of the solution and a deviation from the high solubility characteristics of the real waste liquid. This inconsistency in components and physical properties not only reduces the reliability of cold test results, but also may cause problems such as abnormal melting and bubble defects during the hot operation of the glass solidification facility, seriously affecting the equipment commissioning efficiency and the progress of engineering application.

[0005] Therefore, how to improve the consistency between the simulated high-level radioactive waste liquid and the real waste liquid is a technical problem to be solved urgently. Summary of the Invention

[0006] The object of the present invention is to provide a device for simulating high-level radioactive waste liquid to solve the problems existing in the above-mentioned prior art. By using a first stirring tank to stir and mix part of the materials, and a second stirring tank to stir and mix part of the materials, and introducing the materials stirred and mixed by the second stirring tank into the first stirring tank for continuous stirring and mixing, it can flexibly adapt to materials with different components, ensure the uniformity of the solution, reduce the deviation from the real waste liquid, and thus improve the consistency between the simulated high-level radioactive waste liquid and the real waste liquid.

[0007] To achieve the above object, the present invention provides the following solution:

[0008] The present invention provides a device for simulating high-level radioactive waste liquid, including a first stirring tank, at least two groups of second stirring tanks and a feeding pipeline. The first stirring tank is connected to a water supply mechanism, and the first stirring tank is provided with a first discharge port; the second stirring tank is connected to the water supply mechanism, and the second stirring tank is provided with a second discharge port; the second discharge port is connected to the inlet of the feeding pipeline, and the outlet of the feeding pipeline is connected to the first stirring tank.

[0009] In an embodiment, the first stirring tank and / or the second stirring tank is provided with a stirring mechanism. The stirring mechanism includes a stirring motor, a stirring shaft and stirring blades. The stirring motor is power-connected to the stirring shaft, and the stirring blades are installed on the stirring shaft.

[0010] In an embodiment, the stirring blades are arranged at intervals along the axial direction of the stirring shaft. The stirring blades are spindle-shaped. One end of the spindle shape is connected to the stirring shaft, and a flow disturbing hole is formed in the middle of the spindle shape.

[0011] In an embodiment, it further includes a first circulation device. The first circulation device includes a first circulation pipeline, a first circulation pump and a first circulation valve. The inlet of the first circulation pump is connected to the lower part of the first stirring tank, the outlet of the first circulation pump is connected to the upper part of the first stirring tank through the first circulation pipeline. The first circulation pipeline is provided with the first circulation valve. The first discharge port is arranged between the first circulation valve and the first circulation pump, and a discharge valve is arranged at the first discharge port.

[0012] In an embodiment, it further includes a second circulation device. The second circulation device includes a second circulation pipeline, a second circulation pump and a second circulation valve. The inlet of the second circulation pump is connected to the lower part of the second stirring tank, the outlet of the second circulation pump is connected to the upper part of the second stirring tank through the second circulation pipeline. The second circulation pipeline is provided with the second circulation valve. The second discharge port is arranged between the second circulation valve and the second circulation pump, and a feeding valve is arranged at the second discharge port.

[0013] In one embodiment, the water supply mechanism includes a water storage tank, a water storage pipeline, and a water storage pump. The water storage tank is connected to the outlet of the water storage pump through the water storage pipeline. The inlet of the water storage pump is used to connect to a water source. The water storage tank is connected to a water supply pipeline through a water supply pump. The water supply pipeline is provided with water supply branch pipelines respectively connecting to the first mixing tank and the second mixing tank, and water supply valves are respectively arranged on each water supply branch pipeline.

[0014] In one embodiment, both the feeding pipeline and the water supply branch pipeline are connected to the upper part of the first mixing tank; the water storage pipeline is connected to the upper part of the water storage tank, and the water supply pump is connected to the lower part of the water storage tank.

[0015] In one embodiment, a heating component is further included, and the heating component is respectively arranged on the outer walls of the first mixing tank and the second mixing tank.

[0016] In one embodiment, an air extraction mechanism is further included. The air extraction mechanism includes an air extraction fan, an air extraction pipeline, and an air extraction hood. The air extraction fan is connected to the air extraction hood through the air extraction pipeline, and multiple air extraction hoods are respectively arranged above the first mixing tank and above the second mixing tank.

[0017] In one embodiment, a temperature measuring component is further included, and the temperature measuring component is respectively arranged on the top of the first mixing tank and on the top of the second mixing tank.

[0018] The present invention has achieved the following technical effects compared with the prior art:

[0019] The present invention is provided with a first mixing tank and a second mixing tank which are connected to each other. It can use the first mixing tank to stir and mix part of the materials, use the second mixing tank to stir and mix part of the materials, and introduce the materials stirred and mixed by the second mixing tank into the first mixing tank for continuous stirring and mixing, which can flexibly adapt to materials with different components, ensure the uniformity of the solution, reduce the deviation from the real waste liquid, and further improve the consistency between the simulated high-level radioactive waste liquid and the real waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the equipment for simulating high-level radioactive waste liquid in the embodiment of the present invention;

[0022] Figure 2 ForFigure 1 Schematic diagram of the enlarged structure at A in the middle

[0023] Wherein, 1, the first stirring tank; 2, the first circulation pump; 3, the first circulation valve; 4, the discharge valve; 5, the first circulation pipeline; 6, the feeding pipeline; 7, the second stirring tank; 8, the second circulation pump; 9, the second circulation valve; 10, the feeding valve; 11, the second circulation pipeline; 12, the water storage tank; 13, the water supply pipeline; 14, the water supply pump; 15, the water supply valve; 16, the water storage pipeline; 17, the water storage pump; 18, the stirring motor; 19, the stirring shaft; 20, the stirring blades; 21, the exhaust fan; 22, the exhaust duct; 23, the exhaust hood; 24, the flow disturbance holes; 25, the heating component; 26, the temperature measuring component. Specific implementation manner

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] The purpose of the present invention is to provide a device for simulating high-level radioactive waste liquid to solve the problems existing in the prior art. By using the first stirring tank to stir and mix part of the materials, and the second stirring tank to stir and mix part of the materials, and introducing the materials stirred and mixed by the second stirring tank into the first stirring tank for continuous stirring and mixing, it can flexibly adapt to materials with different components, ensure the uniformity of the solution, reduce the deviation from the real waste liquid, and thus improve the consistency between the simulated high-level radioactive waste liquid and the real waste liquid.

[0026] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0027] As Figure 1 and Figure 2As shown in the figure, the present invention provides a device for simulating high-level radioactive waste liquid, including a first stirring tank 1, at least two groups of second stirring tanks 7, and a feeding pipeline 6. Among them, the first stirring tank 1 is connected to a water supply mechanism, and the water supply mechanism is used to supply water (such as deionized water) to the first stirring tank 1 to dissolve the materials in the first stirring tank 1 for solution preparation. The first stirring tank 1 is provided with a first discharge port, and the simulated waste liquid mixed in the first stirring tank 1 is discharged through the first discharge port for subsequent experiments. The water supply mechanism can be directly connected to a water source or provided with a water storage tank 12 to facilitate the replenishment or supply of water at any time. The second stirring tank 7 is connected to the water supply mechanism, and the water supply mechanism is used to supply water (such as deionized water) to different second stirring tanks 7 respectively to dissolve the materials in the second stirring tanks 7 for solution preparation. The same materials or different materials can be dissolved in different second stirring tanks 7. The dissolution process can be controlled by controlling conditions such as the ratio of materials to water, reaction time, and reaction temperature. The second stirring tank 7 is provided with a second discharge port, and the mixed liquid mixed in the second stirring tank 7 is discharged from the second discharge port. The second discharge port is connected to the inlet of the feeding pipeline 6, and the outlet of the feeding pipeline 6 is connected to the first stirring tank 1. The same or different mixed liquids obtained from multiple second stirring tanks 7 enter the first stirring tank 1 through the feeding pipeline 6 via the second discharge port respectively for further mixing, and the simulated liquid obtained from the first stirring tank 1 is discharged through the first discharge port for application.

[0028] The present invention is provided with a first stirring tank 1 and a second stirring tank 7 which are connected to each other. The first stirring tank 1 can be used to stir and mix some materials, and the second stirring tank 7 can be used to stir and mix some materials. The materials stirred and mixed by multiple second stirring tanks 7 are introduced into the first stirring tank 1 for continuous stirring and mixing. It can flexibly adapt to materials with different components, ensure the uniformity of the solution, reduce the deviation from the real waste liquid, and thus improve the consistency between the simulated high-level radioactive waste liquid and the real waste liquid.

[0029] In an embodiment, the volume of the first stirring tank 1 is greater than or equal to the volume of the second stirring tank 7. In this example, the solution in the second stirring tank 7 can all enter the first stirring tank 1 for further mixing. Thus, the second stirring tank 7 can be used to pretreat relatively insoluble chemical reagents (such as zirconium nitrate, sodium molybdate, sodium vanadate, etc.). After being dissolved by multiple groups of second stirring tanks 7, they enter the first stirring tank 1 and are mixed with the relatively easily soluble chemical reagents in the first stirring tank 1 again. In this way, the dissolution efficiency can be effectively improved.

[0030] In one embodiment, the first stirring tank 1 is provided with a stirring mechanism, or the second stirring tank 7 is provided with a stirring mechanism, or both the first stirring tank 1 and the second stirring tank 7 are provided with stirring mechanisms. The stirring mechanism can mix and stir the materials and water in the first stirring tank 1 and the second stirring tank 7 to improve the dissolution efficiency and the uniformity of dissolution. In this example, the stirring mechanism includes a stirring motor 18, a stirring shaft 19, and stirring blades 20. In the stirring mechanism provided in the first stirring tank 1, the stirring motor 18 is located at the top of the first stirring tank 1 and outside the first stirring tank 1. In the stirring mechanism provided in the second stirring tank 7, the stirring motor 18 is located at the top of the second stirring tank 7 and outside the second stirring tank 7. The stirring motor 18 is power-connected to the stirring shaft 19. By driving the stirring shaft 19 to rotate through the stirring motor 18, the stirring blades 20 are installed on the stirring shaft 19. When the stirring shaft 19 rotates, the stirring blades 20 can be driven to rotate, thereby realizing the stirring of the solution.

[0031] The setting of the stirring mechanism facilitates the full mixing and stirring of the chemical reagents in the first stirring tank 1 and the second stirring tank 7. The stirring motor 18 can drive the stirring shaft 19 to rotate in both forward and reverse directions, and the adjustment of the rotation speed and frequency can improve the stirring effect.

[0032] In one embodiment, the stirring blades 20 are arranged at intervals along the axial direction of the stirring shaft 19, and all or most of the stirring blades 20 are immersed below the liquid level of the solution to improve the stirring effect on the solution. A plurality of stirring blades 20 can be arranged symmetrically on both sides of the stirring shaft 19. In this example, the stirring blades 20 are spindle-shaped. One end of the spindle shape is connected to the stirring shaft 19, and a turbulence hole 24 is provided in the middle of the spindle shape. The setting of the turbulence hole 24, on the one hand, enables the wide position in the middle of the spindle shape to pass through the solution, reducing the resistance, and on the other hand, can improve the turbulence effect and the material mixing and dissolution ability.

[0033] In one embodiment, it further includes a first circulation device. The first circulation device is connected to the first mixing tank 1. The first circulation device includes a first circulation pipeline 5, a first circulation pump 2, and a first circulation valve 3. The inlet of the first circulation pump 2 is connected to the lower part of the first mixing tank 1. Through the pumping action of the first circulation pump 2, the solution in the first mixing tank 1 can be pumped out. The outlet of the first circulation pump 2 is connected to the upper part of the first mixing tank 1 through the first circulation pipeline 5. The solution pumped out by the first circulation pump 2 returns to the first mixing tank 1 again through the first circulation pipeline 5, so as to circulate the solution at the bottom in the first mixing tank 1 to the top, improving the mixing uniformity of the solution in the first mixing tank 1. The first circulation pipeline 5 is provided with a first circulation valve 3. By opening and closing the first circulation valve 3, it can be controlled whether the first circulation pipeline 5 is connected to the first mixing tank 1, so as to control whether the solution circulates. A first discharge port is provided between the first circulation valve 3 and the first circulation pump 2. The first discharge port is provided with a discharge valve 4. After closing the first circulation valve 3, by opening the discharge valve 4, the solution can be transported out by relying on the self-weight of the solution or under the action of the first circulation pump 2.

[0034] In one embodiment, it further includes a second circulation device. The second circulation device is connected to the second mixing tank 7. The second circulation device includes a second circulation pipeline 11, a second circulation pump 8, and a second circulation valve 9. The inlet of the second circulation pump 8 is connected to the lower part of the second mixing tank 7. Through the pumping action of the second circulation pump 8, the solution in the second mixing tank 7 can be pumped out. The outlet of the second circulation pump 8 is connected to the upper part of the second mixing tank 7 through the second circulation pipeline 11. The solution pumped out by the second circulation pump 8 returns to the second mixing tank 7 again through the second circulation pipeline 11, so as to circulate the solution at the bottom in the second mixing tank 7 to the top, improving the mixing uniformity of the solution in the second mixing tank 7. The second circulation pipeline 11 is provided with a second circulation valve 9. By opening and closing the second circulation valve 9, it can be controlled whether the second circulation pipeline 11 is connected to the second mixing tank 7, so as to control whether the solution circulates. A second discharge port is provided between the second circulation valve 9 and the second circulation pump 8. The second discharge port is provided with a feeding valve 10. After closing the second circulation valve 9, by opening the feeding valve 10, the solution can be transported to the feeding pipeline 6 under the action of the second circulation pump 8, and then enter the first mixing tank 1 through the feeding pipeline 6.

[0035] In one embodiment, the water supply mechanism includes a water storage tank 12, a water storage pipeline 16, and a water storage pump 17. The water storage tank 12 is connected to the outlet of the water storage pump 17 through the water storage pipeline 16. The inlet of the water storage pump 17 is used to connect to a water source. Through the water storage pump 17, the water from the water source can be transported to the water storage tank 12 for storage. The water storage tank 12 is connected to a water supply pipeline 13 through a water supply pump 14. The water supply pipeline 13 is provided with water supply branch pipelines respectively connecting to a first mixing tank 1 and a second mixing tank 7. Through the water supply pipeline 13, the water in the water storage tank 12 can be pumped and transported to the first mixing tank 1 and the second mixing tank 7. Water supply valves 15 are respectively arranged on each water supply branch pipeline. By opening and closing the water supply valves 15, water supply can be selected to be supplied to the mixing tank that requires water supply.

[0036] It should be noted that: to ensure the smooth entry of materials (such as chemical reagents) into the first mixing tank 1 and the second mixing tank 7, feed inlets can be opened on the first mixing tank 1 and the second mixing tank 7, and materials can be directly added through the feed inlets; in addition, a filling mechanism can be provided. The filling mechanism is connected to the water supply branch pipeline. When the water supply branch pipeline is used for water supply, the materials can be carried into the first mixing tank 1 or the second mixing tank 7 together.

[0037] In one embodiment, the feeding pipeline 6 and the water supply branch pipelines are both connected to the upper part of the first mixing tank 1. The feeding pipeline 6 collects the solutions of each second mixing tank 7 and then transports them to the first mixing tank 1, reducing the number of openings on the first mixing tank 1. In addition, the connection method to the upper part of the first mixing tank 1 can effectively avoid the backflow of the solution in the first mixing tank 1. The water storage pipeline 16 is connected to the upper part of the water storage tank 12, which can avoid the backflow of the water body in the water storage tank 12. The water supply pump 14 is connected to the lower part of the water storage tank 12, and can rely on the self-weight of the water body in the water storage tank 12 to be discharged, reducing the power requirement for the water supply pump 14.

[0038] In one embodiment, a heating assembly 25 is further included. The heating assembly 25 can adopt methods such as electric heating, oil heating, or steam heating. Structurally, it can adopt a sandwich structure or a coil structure. The outer walls of the first mixing tank 1 and the second mixing tank 7 are respectively provided with the heating assembly 25. By using the heating assembly 25, the temperature in the tank can be maintained at a set level, improving the dissolution efficiency. In this example, the steam heating principle is adopted. The tank body (the first mixing tank 1 and the second mixing tank 7) is heated by the coils (high-temperature steam flows inside the coils) wound around the tank body, which has the advantages of uniform heating and stable temperature, and can effectively improve the mixing effect.

[0039] In one embodiment, it further includes an exhaust mechanism. The solutions dissolved in the first stirring tank 1 and the second stirring tank 7 (such as nitrate solutions) are volatile, and the volatilized gases are toxic. The exhaust mechanism can extract and absorb the volatile and overflowing toxic gases in the first stirring tank 1 and the second stirring tank 7. Specifically, the exhaust mechanism includes an exhaust fan 21, an exhaust duct 22, and an exhaust hood 23. The exhaust fan 21 is connected to the exhaust hood 23 through the exhaust duct 22. A plurality of exhaust hoods 23 are respectively disposed above the first stirring tank 1 and the second stirring tank 7. The exhaust fan 21 can provide negative pressure suction, which is convenient for gas collection at the position of the exhaust hood 23. Thus, the setting of the exhaust mechanism can adsorb toxic and harmful gases, avoiding harm to the surrounding environment and the physical health of personnel. In addition, the air outlet of the exhaust fan 21 can be connected with a purification and filtration device or an adsorption device to collect or process the adsorbed toxic and harmful gases.

[0040] In one embodiment, it further includes a temperature measuring component 26. The temperature measuring component 26 is respectively disposed at the top of the first stirring tank 1 and the top of the second stirring tank 7. The temperature measuring component 26 can be an inserted temperature sensor with a remote transmission function, or it can be a thermometer with on-site display. Through the setting of the temperature measuring component 26, the temperature of the solution can be monitored in real time, and accordingly, the heating component 25 can be adjusted and controlled, so that the solution is stirred and mixed within a suitable temperature range, improving the dissolution efficiency.

[0041] The working process of the present invention is as follows:

[0042] First, through the use of the water storage tank 12, the water supply pipeline 13, the water supply pump 14, the water supply valve 15, the water storage pipeline 16, and the water storage pump 17, it is convenient to fill the water storage tank 12 with deionized water in time through the water storage pipeline 16 and the water storage pump 17, and supply the deionized water for the application in the first stirring tank 1 and the second stirring tank 7;

[0043] Then, open the water supply pump 14 and the water supply valve 15 corresponding to the first stirring tank 1 to inject deionized water into the first stirring tank 1 until the specified water level is reached;

[0044] Then, add soluble chemical reagents to the first stirring tank 1 according to the order and dosage in the simulated feed liquid preparation list. The chemical reagents in the first stirring tank 1 are fully stirred by the stirring mechanism. While stirring, open the first circulation pump 2 and the first circulation valve 3 to realize the internal circulation of the first stirring tank 1, improve the stirring effect, and make the stirring more sufficient. Since the nitrate solution in the first stirring tank 1 is volatile and the volatilized gas is toxic, it is necessary to extract and absorb the volatile and overflowing toxic gas in the first stirring tank 1 through the exhaust mechanism;

[0045] By using the feeding pipeline 6, the second stirring tank 7, the second circulation pump 8, the second circulation valve 9, the second feeding valve 10 and the second circulation pipeline 11, turn on the water supply pump 14 and the water supply valve 15 corresponding to the second stirring tank 7 to inject deionized water into the second stirring tank 7 until the specified water level is reached;

[0046] Then, according to the sequence and dosage of the simulated feed liquid preparation list, add the poorly soluble chemical reagents into the second stirring tank 7. Use the stirring mechanism to fully stir the chemical reagents in the second stirring tank 7. While stirring, turn on the second circulation pump 8 and the second circulation valve 9 to achieve the internal circulation of the second stirring tank 7, improve the stirring effect, and make the stirring more sufficient. Since the nitrate solution in the second stirring tank 7 is volatile and the volatile gas is toxic, it is necessary to use the exhaust mechanism to extract and absorb the toxic gas overflowing from the second stirring tank 7;

[0047] After the second stirring tank 7 is stirred and mixed, open the corresponding feeding valve 10 and close the corresponding second circulation valve 9 to transport the preliminarily mixed chemical reagents in multiple groups of the second stirring tank 7 to the first stirring tank 1 for overall full stirring and mixing again. This is equivalent to pre-stirring and dissolving the poorly soluble chemical reagents in multiple groups of the second stirring tank 7, and then carrying out overall full stirring and mixing again in the first stirring tank 1 to improve the dissolution efficiency.

[0048] By applying the above-mentioned simulated high-level radioactive waste liquid equipment, it can be closest to the real high-level radioactive waste to the greatest extent, and the simulated high-level radioactive waste liquid is not prone to precipitation, enhancing the use efficiency and effect of the simulated high-level radioactive waste liquid equipment, and having high practicability.

[0049] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An apparatus for simulating high-level radioactive waste liquid, characterized in that Comprising: A first stirring tank, the first stirring tank is connected to a water supply mechanism, and the first stirring tank is provided with a first discharge port; At least two groups of second stirring tanks, the second stirring tanks are connected to the water supply mechanism, and the second stirring tanks are provided with second discharge ports; And a feeding pipeline, the second discharge port is connected to the inlet of the feeding pipeline, and the outlet of the feeding pipeline is connected to the first stirring tank.

2. The simulated high-level radioactive waste liquid equipment according to claim 1, wherein: The first stirring tank and / or the second stirring tank is provided with a stirring mechanism, the stirring mechanism includes a stirring motor, a stirring shaft and stirring blades, the stirring motor is power-connected to the stirring shaft, and the stirring blades are installed on the stirring shaft.

3. The simulated high-level radioactive waste liquid equipment according to claim 2, wherein: The stirring blades are arranged at intervals along the axial direction of the stirring shaft, the stirring blades are spindle-shaped, one end of the spindle shape is connected to the stirring shaft, and a flow disturbance hole is formed in the middle of the spindle shape.

4. The simulated high-level radioactive waste liquid equipment according to claim 1, characterized in that: It further includes a first circulation device, the first circulation device includes a first circulation pipeline, a first circulation pump and a first circulation valve, the inlet of the first circulation pump is connected to the lower part of the first stirring tank, the outlet of the first circulation pump is connected to the upper part of the first stirring tank through the first circulation pipeline, the first circulation pipeline is provided with the first circulation valve, the first discharge port is arranged between the first circulation valve and the first circulation pump, and a discharge valve is arranged at the first discharge port.

5. The simulated high-level radioactive waste liquid equipment according to claim 1, characterized in that: It further includes a second circulation device, the second circulation device includes a second circulation pipeline, a second circulation pump and a second circulation valve, the inlet of the second circulation pump is connected to the lower part of the second stirring tank, the outlet of the second circulation pump is connected to the upper part of the second stirring tank through the second circulation pipeline, the second circulation pipeline is provided with the second circulation valve, the second discharge port is arranged between the second circulation valve and the second circulation pump, and a feeding valve is arranged at the second discharge port.

6. The simulated high-level radioactive waste liquid equipment according to claim 1, characterized in that: The water supply mechanism includes a water storage tank, a water storage pipeline and a water storage pump, the water storage tank is connected to the outlet of the water storage pump through the water storage pipeline, the inlet of the water storage pump is used for connecting to a water source, the water storage tank is connected to a water supply pipeline through a water supply pump, the water supply pipeline is provided with water supply branch pipelines respectively connected to the first stirring tank and the second stirring tank, and water supply valves are respectively arranged on each water supply branch pipeline.

7. The simulated high-level radioactive waste liquid equipment according to claim 6, characterized in that: The feeding pipeline and the water supply branch pipelines are both connected to the upper part of the first stirring tank; the water storage pipeline is connected to the upper part of the water storage tank, and the water supply pump is connected to the lower part of the water storage tank.

8. The simulated high-level radioactive waste liquid equipment according to claim 1, wherein: It further includes a heating component, and the heating component is respectively arranged on the outer walls of the first stirring tank and the second stirring tank.

9. The simulated high-level radioactive waste liquid equipment according to claim 1, wherein: It further includes an air extraction mechanism, the air extraction mechanism includes an air extraction fan, an air extraction pipeline and an air extraction hood, the air extraction fan is connected to the air extraction hood through the air extraction pipeline, and a plurality of the air extraction hoods are respectively arranged above the first stirring tank and above the second stirring tank.

10. The simulated high-level radioactive waste liquid equipment according to claim 1, characterized in that: It further includes a temperature measuring component, and the temperature measuring component is respectively arranged on the tops of the first stirring tank and the second stirring tank.

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