Radioactive sludge containing wastewater transport system

Abstract

The application discloses a radioactive slag-containing wastewater conveying system, which comprises a sealed tank, a flow tank and a flow tank outlet. The sealed tank comprises a sealed tank body and a sealed tank overflow part arranged on the sealed tank body. The sealed tank overflow part is open towards the horizontal line and is used for overflow of radioactive slag-containing wastewater in the sealed tank body. The flow tank comprises a flow tank body and a flow tank outlet. The flow tank body is provided with a flow tank inlet. The flow tank inlet is connected with the outlet of the sealed tank overflow part. The height of the flow tank inlet is lower than that of the outlet of the sealed tank overflow part. The flow tank outlet is arranged at the bottom of the flow tank body and is used for outflow of the material. The conveying system of the application is provided with the sealed tank, has liquid sealing property and can prevent backflow of tail gas generated by the calcining furnace connected subsequently. The conveying system of the application can ensure stable feeding of the mixed liquid and control the batch discharging ratio of the glass beads, has simple structure and can meet the requirement of remote replacement in the hot chamber.

Description

Technical Field

[0001] This invention belongs to the field of radioactive wastewater conveyance technology, and specifically relates to a radioactive wastewater conveyance system. Background Technology

[0002] In recent years, glass curing technology has been used to treat radioactive wastewater. The glass curing process first pre-treats the radioactive wastewater by calcination to convert it into oxides. Then, it is mixed with glass substrate in a certain proportion, melted, and cast in a calcination furnace. After annealing, the radionuclides are fixed in the glass network to form a stable glass curing body.

[0003] Cold crucible glass hardening is suitable for treating high, medium, and low-level radioactive waste liquids and organic waste liquids. It features high heating temperature, simple operation, and long service life. Existing conveyor systems connected to the furnace cannot continuously supply materials to the calcining furnace. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art by providing a radioactive wastewater conveying system for stable feeding of the material circulation system and control of the batch feeding ratio of glass beads to form a liquid seal.

[0005] The technical solution adopted to solve the technical problem of this invention is to provide a radioactive wastewater conveying system, comprising:

[0006] A sealed container includes: a sealed container body and a sealed container overflow section disposed on the sealed container body, the opening of the sealed container overflow section facing the horizontal line, and the sealed container overflow section is used for the overflow of radioactive wastewater containing residue inside the sealed container body.

[0007] The manifold includes: a manifold body and a manifold discharge section. The manifold body is provided with a manifold inlet, which is connected to the overflow outlet of the sealed tank. The height of the manifold inlet is lower than the height of the overflow outlet of the sealed tank. The manifold discharge section is located at the bottom of the manifold body and is used for the outflow of materials inside the manifold body.

[0008] The overflow section of the sealed tank is at a certain angle to the main body of the sealed tank, allowing the highly radioactive wastewater containing slag to overflow into the manifold when the liquid and slag reach a certain level. The discharge section of the manifold is also at a certain angle to the main body of the manifold, facilitating the gravity flow of the slag to the connected calcining furnace.

[0009] Preferably, the bottom surface of the manifold body is inclined, and the height of the side of the bottom surface of the manifold body near the manifold inlet is higher than the height of the side of the bottom surface of the manifold body near the manifold outlet.

[0010] Preferably, the radioactive wastewater conveying system further includes:

[0011] The feeding device is connected to the sealed tank and is used to transport radioactive wastewater containing slag into the sealed tank.

[0012] Preferably, the feeding device is connected to the sealed tank via a first pipe, which extends below the surface of the radioactive wastewater containing slag inside the sealed tank.

[0013] Preferably, the feeding device includes:

[0014] The slag-water feeding tank is used to introduce and stir radioactive slag-containing wastewater.

[0015] The gas-liquid separator is connected to the slag and water supply tank. The gas-liquid separator is used for gas-liquid separation of radioactive slag-containing wastewater.

[0016] The metering device is connected to the gas-liquid separator and is used to measure the radioactive wastewater containing residue after gas-liquid separation. The metering device is also connected to the sealed tank.

[0017] Preferably, the radioactive wastewater conveying system further includes:

[0018] The compressed air ejector is connected to the gas-liquid separator and is used to create negative pressure.

[0019] An air lifting device is installed between the gas-liquid separator and the metering device. The air lifting device is connected to both the gas-liquid separator and the metering device and is used to transport radioactive wastewater containing slag into a sealed tank.

[0020] Preferably, the radioactive wastewater conveying system further includes: a third compressed air pipeline.

[0021] The compressed air ejector is equipped with a third compressed air port, and a third compressed air pipeline is connected to the third compressed air port. The pressure of the compressed air entering the third compressed air port is 0.3MPa to 2MPa, and the flow rate is 0.5 to 12Nm³. 3 / h.

[0022] A vacuum-assisted air lifting device is used to create negative pressure through a compressed air injector. The auxiliary air lifting device transports the slag-containing wastewater to a gas-liquid separator. After passing through a metering device, it is transported to a sealed tank and a manifold. The wastewater then flows by gravity to the connected calcining furnace, which can ensure a stable feed of the mixed liquid and control the batch feeding ratio of glass beads.

[0023] Preferably, the radioactive wastewater conveying system further includes: a first compressed air pipeline, wherein the wastewater supply trough is provided with a first compressed air inlet.

[0024] The first compressed air pipeline is connected to the first compressed air port, and the outlet of the first compressed air pipeline extends below the surface of the radioactive slag-containing wastewater in the slag-water feeding tank. The first compressed air pipeline is used to introduce compressed air into the slag-water feeding tank to stir the radioactive slag-containing wastewater.

[0025] Preferably, the radioactive wastewater conveying system further includes: a second compressed air pipeline, wherein the sealed tank body is provided with a second compressed air port.

[0026] The second compressed air pipeline is connected to the second compressed air inlet, and the outlet of the second compressed air pipeline extends below the surface of the radioactive wastewater containing slag inside the sealed tank body. The second compressed air pipeline is used to introduce compressed air into the sealed tank body to stir the radioactive wastewater containing slag.

[0027] A fourth compressed air port is installed on the pipeline between the gas-liquid separator and the metering device. The fourth compressed air port is connected to a fourth compressed air pipeline, and compressed air is introduced through the fourth compressed air port to form a negative pressure.

[0028] A first compressed air port is installed on the pipeline between the slag and water feeding tank and the gas-liquid separator. The first compressed air port is connected to a first compressed air pipeline, and compressed air is introduced through the first compressed air port to form a negative pressure.

[0029] A second slag and water inlet is provided on the slag and water feed trough. The second slag and water inlet is connected to a second slag and water feed pipe, through which radioactive slag-containing wastewater is introduced into the slag and water feed trough.

[0030] Preferably, the radioactive wastewater conveying system further includes:

[0031] The system includes a circulating washing liquid pipeline, a high-radioactive wastewater pipeline, and a first deionized water pipeline. The sealed tank body is equipped with a circulating washing liquid inlet, a high-radioactive wastewater inlet, and a first deionized water inlet.

[0032] The circulating washing liquid pipeline is connected to the circulating washing liquid inlet; the high-radioactive wastewater pipeline is connected to the high-radioactive wastewater inlet; and the first deionized water pipeline is connected to the first deionized water inlet.

[0033] The outlet of the circulating washing liquid pipe extends below the material surface inside the sealed tank body; the outlet of the highly radioactive wastewater pipe extends below the material surface inside the sealed tank body; and the outlet of the first deionized water pipe extends below the material surface inside the sealed tank body.

[0034] The circulating washing liquid inlet is used to introduce radioactive circulating washing liquid into the sealed tank body, the high radioactive wastewater inlet is used to introduce high radioactive wastewater into the sealed tank body, and the first deionized water inlet is used to introduce deionized water into the sealed tank body.

[0035] Preferably, the radioactive wastewater conveying system further includes:

[0036] The second deionized water pipeline has a second deionized water inlet on the main body of the manifold.

[0037] The second deionized water pipe is connected to the second deionized water inlet. The outlet of the second deionized water pipe extends below the material liquid level inside the manifold body. The second deionized water inlet is used to introduce deionized water into the manifold body.

[0038] Preferably, the sealing container further includes: a sealing container support lug disposed on the sealing container body;

[0039] The manifold also includes manifold lugs installed on the manifold body.

[0040] Preferably, the total volume of the sealed container is 0.005–0.01 m³. 3 The operating temperature is 30℃;

[0041] The total volume of the manifold is 0.005–0.015 m³. 3 The operating temperature is 30℃.

[0042] The beneficial effects of the radioactive slag-containing wastewater conveyance system of the present invention are as follows:

[0043] 1. The radioactive slag water conveying system of the present invention is equipped with a sealed tank, which has liquid sealing properties and can prevent the backflow of tail gas generated by the calcining furnace connected downstream.

[0044] 2. The radioactive slag-water conveying system of the present invention is equipped with a sealed tank and a manifold tank. The radioactive slag-containing wastewater is conveyed to the sealed tank and the manifold tank through a vacuum-assisted air lifting device. The discharge part of the manifold tank is set at a certain angle to facilitate the gravity flow of the slag-water to the subsequent connected calcining furnace, which can ensure the stable feeding of the mixed liquid.

[0045] The radioactive wastewater conveying system of the present invention can ensure stable feeding of mixed liquid and control the batch feeding ratio of glass beads, and has a simple structure that can meet the requirements of long-distance replacement in a hot chamber. Attached Figure Description

[0046] Figure 1 This is a diagram of the sealing tank and manifold tank in Embodiment 2 of the present invention.

[0047] Figure 2 This is a schematic diagram of the radioactive slag-containing wastewater conveying system in Embodiment 2 of the present invention.

[0048] In the diagram: 1. First deionized water inlet; 2. Exhaust / ventilation inlet; 3. Circulating washing liquid inlet; 4. High-radioactive wastewater inlet; 5. High-radioactive wastewater inlet; 6. Second deionized water inlet; 7. Second compressed air inlet; 8. Manifold discharge section; 9. First compressed air inlet; 10. Exhaust / ventilation inlet; 11. Second sludge / water inlet; 12. Sludge / water feeding trough; 13. Third compressed air inlet; 14. Gas-liquid separator; 15. Metering device; 16. Fourth compressed air inlet; 17. Sealed tank; 18. Manifold; 19. Compressed air ejector; 20. Air lifting device; 21. Sealed tank overflow section. Detailed Implementation

[0049] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0051] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0052] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0053] The system / technology provided in this application is applicable to the transportation of radioactive slag-containing wastewater. The following describes the high radioactive slag-containing wastewater transportation system and remote operation technology of this application embodiment in conjunction with the cold crucible glass solidification process.

[0054] Example 1

[0055] This embodiment provides a radioactive wastewater containing slag transportation system, including:

[0056] A sealed container includes: a sealed container body and a sealed container overflow section disposed on the sealed container body, the opening of the sealed container overflow section facing the horizontal line, and the sealed container overflow section is used for the overflow of radioactive wastewater containing residue inside the sealed container body.

[0057] The manifold includes: a manifold body and a manifold discharge section. The manifold body is provided with a manifold inlet, which is connected to the overflow outlet of the sealed tank. The height of the manifold inlet is lower than the height of the overflow outlet of the sealed tank. The manifold discharge section is located at the bottom of the manifold body and is used for the outflow of materials inside the manifold body.

[0058] The beneficial effects of the radioactive wastewater conveyance system containing slag in this embodiment are as follows:

[0059] 1. The radioactive slag water conveying system of this embodiment is equipped with a sealed tank, which has liquid sealing properties and can prevent the backflow of tail gas generated by the calcining furnace connected later.

[0060] 2. The radioactive slag-water conveying system in this embodiment is equipped with a sealed tank and a manifold. The radioactive slag-containing wastewater is conveyed to the sealed tank and the manifold through a vacuum-assisted air lifting device. The discharge part of the manifold is set at a certain angle to facilitate the gravity flow of the slag-water to the subsequently connected calcining furnace, which can ensure the stable feeding of the mixed liquid.

[0061] The radioactive wastewater conveying system of this embodiment can ensure stable feeding of the mixed liquid and control the batch feeding ratio of glass beads. It also has a simple structure and can meet the requirements for long-distance replacement in the hot chamber.

[0062] Example 2

[0063] like Figure 1 , 2 As shown, this embodiment provides a radioactive wastewater containing slag transportation system, including:

[0064] The sealed container 17 includes: a sealed container body and a sealed container overflow part 21 disposed on the sealed container body. The opening of the sealed container overflow part 21 faces the horizontal line and is used for the overflow of radioactive wastewater containing residue inside the sealed container body.

[0065] The manifold 18 includes: a manifold body and a manifold discharge section 8. The manifold body is provided with a manifold inlet, which is connected to the outlet of the sealed tank overflow section 21. The height of the manifold inlet is lower than the height of the outlet of the sealed tank overflow section 21. The manifold discharge section 8 is located at the bottom of the manifold body and is used for the outflow of materials inside the manifold body.

[0066] Specifically, the overflow section 21 of the sealed tank is at a certain angle to the main body of the sealed tank, so that when the liquid and slag water reach a certain level, the highly radioactive slag-containing wastewater can overflow into the manifold 18. The discharge section 8 of the manifold is at a certain angle to the main body of the manifold, so that the slag water can flow by gravity to the connected calcining furnace.

[0067] Preferably, the bottom surface of the manifold body is a slope, and the height of the side of the bottom surface of the manifold body near the manifold inlet is higher than the height of the side of the bottom surface of the manifold body near the manifold discharge section 8.

[0068] Preferably, the radioactive wastewater conveying system further includes:

[0069] The feeding device is connected to the sealed tank 17 and is used to transport radioactive wastewater containing slag into the sealed tank 17.

[0070] Preferably, the feeding device is connected to the sealed tank 17 via a first pipe, which extends below the surface of the radioactive wastewater containing slag inside the sealed tank body.

[0071] Preferably, the feeding device includes:

[0072] Slag and water supply tank 12 is used to introduce radioactive slag-containing wastewater and stir it.

[0073] The gas-liquid separator 14 is connected to the slag and water feeding tank 12. The gas-liquid separator 14 is used for gas-liquid separation of radioactive slag-containing wastewater.

[0074] Metering device 15 is connected to gas-liquid separator 14. Metering device 15 is used to meter the radioactive slag-containing wastewater after gas-liquid separation. Metering device 15 is also connected to sealed tank 17. Metering device 15 is also connected to slag-water feed tank 12.

[0075] Preferably, the radioactive wastewater conveying system further includes:

[0076] Compressed air ejector 19 is connected to gas-liquid separator 14, and compressed air ejector 19 is used to create negative pressure;

[0077] An air lifting device 20 is installed between the gas-liquid separator 14 and the metering device 15. The air lifting device 20 is connected to the gas-liquid separator 14 and the metering device 15 respectively. The air lifting device 20 is used to transport radioactive wastewater containing slag into the sealed tank 17.

[0078] Preferably, the radioactive wastewater conveying system further includes: a third compressed air pipeline, wherein the compressed air injector 19 is provided with a third compressed air port 13.

[0079] The third compressed air pipeline is connected to the third compressed air port 13. The pressure of the compressed air entering the third compressed air port 13 is 0.3MPa~2MPa, and the flow rate is 0.5~12Nm³. 3 / h.

[0080] The vacuum-assisted air lifting device 20 is used to create negative pressure through the compressed air ejector 19. The auxiliary air lifting device 20 transports the slag-containing wastewater to the gas-liquid separator 14, and then through the metering device 15 to the sealed tank 17 and the manifold 18. The wastewater then flows by gravity to the connected calcining furnace, which can ensure the stable feeding of the mixed liquid and control the batch feeding ratio of glass beads.

[0081] Preferably, the radioactive wastewater containing slag conveying system further includes: a first compressed air pipeline, wherein the slag water supply tank 12 is provided with a first compressed air port 9.

[0082] The first compressed air pipeline is connected to the first compressed air port 9. The outlet of the first compressed air pipeline extends below the surface of the radioactive slag-containing wastewater in the slag-water feeding tank 12. The first compressed air pipeline is used to introduce compressed air into the slag-water feeding tank 12 to stir the radioactive slag-containing wastewater.

[0083] Preferably, the radioactive wastewater conveying system further includes: a second compressed air pipeline, wherein the sealed tank body is provided with a second compressed air port 7.

[0084] The second compressed air pipeline is connected to the second compressed air port 7. The outlet of the second compressed air pipeline extends below the surface of the radioactive wastewater containing slag inside the sealed tank body. The second compressed air pipeline is used to introduce compressed air into the sealed tank body to stir the radioactive wastewater containing slag.

[0085] A fourth compressed air port 16 is provided on the pipeline between the gas-liquid separator 14 and the metering device 15. The fourth compressed air port 16 is connected to the fourth compressed air pipeline, and compressed air is introduced through the fourth compressed air port 16 to form a negative pressure.

[0086] A first compressed air port 9 is provided on the pipeline between the slag and water feeding tank 12 and the gas-liquid separator 14. The first compressed air port 9 is connected to the first compressed air pipeline, and compressed air is introduced through the first compressed air port 9 to form a negative pressure.

[0087] The manifold 18 is provided with an exhaust port 2, which is used to discharge the exhaust generated in the manifold 18.

[0088] The slag and water feed trough is equipped with a second slag and water inlet 11, which is connected to a second slag and water feed pipe. Radioactive slag-containing wastewater is introduced into the slag and water feed trough through the second slag and water feed pipe.

[0089] Preferably, the radioactive wastewater conveying system further includes:

[0090] The system includes a circulating washing liquid pipeline, a high-radioactive wastewater pipeline, and a first deionized water pipeline. The sealed tank body is equipped with a circulating washing liquid inlet 3, a high-radioactive wastewater inlet 4, and a first deionized water inlet 1.

[0091] The circulating washing liquid pipeline is connected to the circulating washing liquid port 6, the high radioactive wastewater pipeline is connected to the high radioactive wastewater inlet 4, and the first deionized water pipeline is connected to the first deionized water port 1.

[0092] The outlet of the circulating washing liquid pipe extends below the material liquid surface inside the sealed tank body, the outlet of the high radioactive wastewater pipe extends below the material liquid surface inside the sealed tank body, and the outlet of the first deionized water pipe extends below the material liquid surface inside the sealed tank body, all forming a liquid seal.

[0093] The circulating washing liquid inlet 6 is used to introduce radioactive circulating washing liquid into the sealed tank body, the high radioactive wastewater inlet 4 is used to introduce high radioactive wastewater into the sealed tank body, and the first deionized water inlet 1 is used to introduce deionized water into the sealed tank body.

[0094] Specifically, in this embodiment, the sealed tank 17 is used to mix highly radioactive wastewater containing slag, highly radioactive wastewater (high-emission liquid), and circulating washing liquid (waste liquid), and is connected to the storage tank ventilation system. The outlet of the overflow section 21 of the sealed tank is at a certain angle to the main body of the sealed tank, facilitating the overflow of the slag-containing wastewater to the manifold 18. A second compressed air port 7 needs to be retained on the sealed tank 17 to ensure that the radioactive wastewater containing slag and the circulating washing liquid (waste liquid) are fully stirred to prevent particle deposition. During calcination, deionized water also needs to be introduced through the first deionized water port 1. The total volume of the sealed tank 17 is 0.006-0.009 m³. 3 The normal operating temperature is 30℃, and it can be replaced over a long distance.

[0095] Preferably, the radioactive wastewater conveying system further includes:

[0096] The second deionized water pipeline has a second deionized water inlet 6 on the main body of the manifold.

[0097] The second deionized water pipe is connected to the second deionized water inlet 6.

[0098] The outlet of the second deionized water pipe extends below the material liquid level inside the manifold body, forming a liquid seal.

[0099] The second deionized water inlet 6 is used to introduce deionized water into the manifold body.

[0100] Specifically, in this embodiment, the manifold 18 receives the slag-containing wastewater flowing into the sealed tank 17, and the resulting calcined material is transported to the calcining furnace. The manifold 18 and the sealed tank 17 are connected by an inclined pipe to facilitate the overflow of the liquid and slag-water from the sealed tank. A second deionized water inlet 6 is provided on the manifold body for use during calcination. The second deionized water inlet 9 extends below the liquid surface; the design takes into account the liquid-sealing properties of the sealed tank 17 and the manifold 18 to prevent the exhaust gas generated in the calcining furnace from flowing back to the metering device 15. The total volume of the manifold 18 is 0.007-0.01 m³. 3 The normal operating temperature is 30℃, and it can be replaced over a long distance.

[0101] Preferably, the sealed container 17 further includes a sealing container support lug disposed on the sealed container body;

[0102] The manifold 18 also includes manifold lugs disposed on the manifold body.

[0103] Specifically, in this embodiment, the sealing tank body is vertically arranged and hung on the wall via sealing tank supports. The manifold tank body is also vertically arranged and hung on the wall via manifold tank supports.

[0104] Preferably, the total volume of the sealed container 17 is 0.005–0.01 m³. 3 The operating temperature is 30℃;

[0105] The total volume of manifold 18 is 0.005–0.015 m³. 3 The operating temperature is 30℃.

[0106] Specifically, the specific transportation technology of this radioactive wastewater containing slag transportation system is as follows:

[0107] In this embodiment, when the transported liquid is highly radioactive slag-containing wastewater, the pressure of the compressed air introduced into the slag-water supply tank 12 is 0.3 MPa-1 MPa, and the flow rate is 0.7-12 Nm³. 3 / h, Figure 2The specific conveying process of this embodiment is shown. Radioactive wastewater containing slag is thoroughly stirred in the slag-water supply tank 12 by a stirring device. Negative pressure is created by a compressed air ejector 19, and an auxiliary air lifting device 20 conveys the wastewater to a gas-liquid separator 14. A portion of the generated exhaust gas is discharged into the storage tank ventilation system. Part of the liquid in the gas-liquid separator 14 flows back to the slag-water supply tank 12 by gravity, while the remaining liquid is conveyed to a sealed tank 17 via a slag-water metering device 15. The sealed tank 17 receives not only highly radioactive wastewater containing slag but also highly radioactive wastewater (high-emission liquid) and circulating washing liquid (waste liquid). Compressed air is introduced into the sealed tank 17 to facilitate thorough mixing of these three solutions, preventing slag sedimentation and particle generation. The washing liquid used for cleaning and decontamination can be conveyed out via a steam jet pump. Deionized water is introduced during calcination for rinsing and decontamination. When the liquid level in the sealed tank 17 reaches a certain height, it overflows into a manifold 18. Due to gravity, the liquid flowing into the manifold 18 flows out from the discharge section 8 at the lower right and is transported to the calcining furnace for calcination and melting. When the liquid level in the sealed tank 17 does not reach the overflow height, the liquid is stored in the sealed tank 17. Due to the special structural design of the sealed tank 17 and the manifold 18, this slag-water conveying system operates on a real-time input and output basis. When a stable mixture of liquid enters the conveying system, the manifold 18 continuously delivers the liquid to the calcining furnace.

[0108] In the receiving and feeding system, highly radioactive wastewater containing slag is stably and quantitatively fed through an air lifting device 20 and a metering device 15. The problems of stable feeding of the mixed liquid and batch feeding ratio control of glass beads can be solved by the arrangement of equipment and pipelines and the liquid seal of the sealed tank 17.

[0109] In this embodiment, the sealing tank 17 and the manifold 18 are connected by a jumper pipe, the manifold 18 is connected to the calcining furnace by a jumper pipe, the sealing tank 17 is connected to the metering device 15 by a jumper pipe, and other media supply pipes are arranged on a support plate of the equipment and connected to the supply pipes by a flexible hose that can be operated remotely.

[0110] When the sealed tank 17 and manifold 18 need to be replaced remotely, use a power wrench and impact wrench to remove the jumper and various media supply hoses, and finally use a crane to move them to complete the remote replacement.

[0111] In this embodiment, the radioactive wastewater containing slag flows into the sealed tank 17 after passing through the slag-water feeding tank 12. When it reaches a certain liquid level, it overflows into the manifold 18, preparing for the next stage of glass curing. This achieves stable feeding of the mixed liquid and controls the batch feeding ratio of glass beads. It also liquid seals the exhaust gas generated by subsequent equipment, ensuring continuous glass curing production. In addition, the design of this embodiment considers long-distance replacement in the hot chamber.

[0112] The beneficial effects of the radioactive wastewater conveyance system containing slag in this embodiment are as follows:

[0113] 1. The radioactive slag water conveying system of this embodiment is equipped with a sealed tank 17, which has liquid sealing properties and can prevent the tail gas generated by the calcining furnace connected later from flowing back to the metering device 15.

[0114] 2. The radioactive slag-water conveying system of this embodiment is equipped with a sealed tank 17 and a manifold tank 18. The radioactive slag-containing wastewater is conveyed to the sealed tank 17 and the manifold tank 18 through a vacuum-assisted air lifting device 20. The discharge part 8 of the manifold tank is set at a certain angle to facilitate the gravity flow of the slag-water to the subsequent connected calcining furnace, which can ensure the stable feeding of the mixed liquid.

[0115] The radioactive wastewater conveying system of this embodiment can ensure stable feeding of the mixed liquid and control the batch feeding ratio of glass beads. It also has a simple structure and can meet the requirements for long-distance replacement in the hot chamber.

[0116] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A system for conveying radioactive wastewater containing slag, characterized in that, include: A sealed container includes: a sealed container body and a sealed container overflow section disposed on the sealed container body, the opening of the sealed container overflow section facing the horizontal line, and the sealed container overflow section is used for the overflow of radioactive wastewater containing residue inside the sealed container body. The manifold includes: a manifold body and a manifold discharge section. The manifold body has a manifold inlet connected to the overflow outlet of the sealed tank. The height of the manifold inlet is lower than the height of the overflow outlet of the sealed tank. The manifold discharge section is located at the bottom of the manifold body and is used for the outflow of material from the manifold body. The bottom surface of the manifold body is sloped, and the height of the side of the bottom surface of the manifold body near the manifold inlet is higher than the height of the side of the bottom surface of the manifold body near the manifold discharge section. A feeding device, connected to a sealed tank, is used to transport radioactive slag-containing wastewater into the sealed tank. The feeding device and the sealed tank are connected via a first pipe that extends below the surface of the radioactive slag-containing wastewater inside the sealed tank. The feeding device includes: a slag-water feeding tank for introducing and stirring the radioactive slag-containing wastewater; a gas-liquid separator connected to the slag-water feeding tank for gas-liquid separation of the radioactive slag-containing wastewater; and a metering device connected to the gas-liquid separator for metering the radioactive slag-containing wastewater after gas-liquid separation. The metering device is also connected to the sealed tank. An air lifting device is installed between the gas-liquid separator and the metering device. The air lifting device is connected to both the gas-liquid separator and the metering device and is used to transport radioactive wastewater containing slag into a sealed tank.

2. The radioactive slag-containing wastewater conveying system according to claim 1, characterized in that, Also includes: The compressed air ejector is connected to the gas-liquid separator and is used to create negative pressure.

3. The radioactive slag-containing wastewater conveying system according to claim 2, characterized in that, Also includes: The third compressed air pipeline is connected to the third compressed air port on the compressed air ejector. The pressure of the compressed air entering the third compressed air port is 0.3MPa~2MPa, and the flow rate is 0.5~12 Nm³. 3 / h.

4. The radioactive slag-containing wastewater conveying system according to claim 1, characterized in that, Also includes: The first compressed air pipeline is provided on the slag and water supply tank. The first compressed air pipe is connected to the first compressed air port. The outlet of the first compressed air pipeline extends into the slag and water supply tank below the surface of the radioactive slag-containing wastewater. The first compressed air pipeline is used to introduce compressed air into the slag and water supply tank to stir the radioactive slag-containing wastewater.

5. The radioactive slag-containing wastewater conveying system according to claim 1, characterized in that, Also includes: The second compressed air pipeline is provided on the sealed tank body, and the second compressed air port is connected to the second compressed air pipeline. The outlet of the second compressed air pipeline extends into the sealed tank body below the surface of the radioactive wastewater containing slag. The second compressed air pipeline is used to introduce compressed air into the sealed tank body to stir the radioactive wastewater containing slag.

6. The radioactive slag-containing wastewater conveying system according to any one of claims 1 to 5, characterized in that, Also includes: The sealed tank body is equipped with a circulating washing liquid pipeline, a high-radioactive wastewater pipeline, and a first deionized water pipeline. The circulating washing liquid pipeline is connected to the circulating washing liquid pipeline, the high-radioactive wastewater pipeline is connected to the high-radioactive wastewater inlet, and the first deionized water pipeline is connected to the first deionized water pipeline. The outlet of the circulating washing liquid pipeline extends below the material surface inside the sealed tank body, the outlet of the high-radioactive wastewater pipeline extends below the material surface inside the sealed tank body, and the outlet of the first deionized water pipeline extends below the material surface inside the sealed tank body. The circulating washing liquid pipeline is used to introduce radioactive circulating washing liquid into the sealed tank body, the high-radioactive wastewater inlet is used to introduce high-radioactive wastewater into the sealed tank body, and the first deionized water pipeline is used to introduce deionized water into the sealed tank body.

7. The radioactive slag-containing wastewater conveying system according to any one of claims 1 to 5, characterized in that, Also includes: The second deionized water pipe is provided on the main body of the manifold. The second deionized water pipe is connected to the second deionized water pipe. The outlet of the second deionized water pipe extends into the material liquid surface inside the main body of the manifold. The second deionized water pipe is used to introduce deionized water into the main body of the manifold.

8. The radioactive slag-containing wastewater conveying system according to any one of claims 1 to 5, characterized in that, The sealed container also includes: a sealing container support lug disposed on the sealed container body; The manifold also includes manifold lugs installed on the manifold body.

9. The radioactive slag-containing wastewater conveying system according to any one of claims 1 to 5, characterized in that, The total volume of the sealed container is 0.005~0.01 m³. 3 The operating temperature is 30°C. ; The total volume of the manifold is 0.005~0.015 m³. 3 The operating temperature is 30°C. .

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