Powder delivery device and handling system for radioactive powder

Abstract

The application discloses a powder conveying device and a radioactive powder processing system, which are used for effectively controlling radioactive powder in a conveying device during a conveying process and meeting the requirements of plant cleaning and personnel radiation protection. The powder conveying device comprises a vacuum assembly and a storage assembly. The vacuum assembly comprises a vacuum feeding machine (6), a vacuum generator (12) and a negative pressure generator (4). A feeding port of the vacuum feeding machine (6) is used for sucking in powder. The vacuum generator (12) is arranged in the vacuum feeding machine (6) and is close to the feeding port of the vacuum feeding machine (6). The negative pressure generator (4) is communicated with the vacuum feeding machine (6) and is used for keeping a negative pressure environment of the vacuum assembly. The storage assembly comprises a storage tank (7), the storage tank (7) is arranged below the vacuum feeding machine (6) and is communicated with the vacuum feeding machine (6), and is used for storing powder entering the vacuum feeding machine (6) and conveying the stored powder outward.

Description

Technical Field

[0001] This invention specifically relates to a powder conveying device and a system for processing radioactive powder. Background Technology

[0002] Products or raw materials used in nuclear facilities are typically in powder form, which is generally radioactive and consists of fine particles. During the generation, transport, temporary storage, and transfer of these powders, each stage must prevent radioactive powder from spilling into the facility and forming radioactive aerosols, and must minimize the radiation dose received by personnel at each stage, ensuring compliance with facility cleanliness and personnel radiation protection requirements. Therefore, a powder transport method is needed to control radioactive powder within the transport device during transport. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the prior art by providing a powder conveying device and a radioactive powder handling system, which can effectively control radioactive powder within the conveying device during the conveying process, thereby meeting the requirements of factory cleanliness and personnel radiation protection.

[0004] In a first aspect, embodiments of the present invention provide a powder conveying device, comprising: a vacuum assembly and a storage assembly. The vacuum assembly includes a vacuum feeder, a vacuum generator, and a negative pressure generator. The feed inlet of the vacuum feeder is used to draw in powder. The vacuum generator is disposed within the vacuum feeder and near its feed inlet, and is used to create a vacuum at the feed inlet of the vacuum feeder to draw in powder. The negative pressure generator is connected to the vacuum feeder and is used to maintain a negative pressure environment in the vacuum assembly. The storage assembly includes a storage tank disposed below and connected to the vacuum feeder, used to store powder entering the vacuum feeder and to convey the stored powder outwards.

[0005] The powder conveying device provided in this embodiment of the invention utilizes a vacuum generator to create a vacuum, allowing the inlet of the vacuum feeder to draw powder from the product container through a pipe extending into the container, thus achieving powder conveying. The air inlet of the negative pressure generator is connected to the interior of the vacuum generator, maintaining a negative pressure state within the vacuum assembly. This confines the powder within the vacuum assembly, preventing powder leakage into the factory during conveying and meeting factory cleanliness and personnel radiation protection requirements. A storage tank can temporarily store the powder drawn in by the vacuum generator, preventing excessive powder accumulation in the vacuum generator from affecting its powder-drawing capacity.

[0006] In some embodiments, the vacuum generator is a jet-type vacuum generator, and the air inlet of the jet-type vacuum generator passes through the outer wall of the vacuum feeder and is connected to a compressed air pipeline.

[0007] In some embodiments, the powder conveying device further includes a control assembly comprising a controller and a first control valve. The first control valve is disposed on the jet vacuum generator and is electrically connected to the controller. The controller is configured to control the first control valve to open or close the jet vacuum generator upon receiving a first operational signal indicating that powder needs to be drawn from the feed inlet of the vacuum feeder.

[0008] In some embodiments, the outlet of the storage tank is connected to the dissolving tank. The control assembly further includes a pneumatic valve disposed on a first pipeline between the storage tank and the dissolving tank, the pneumatic valve being electrically connected to the controller. The controller is configured to control the pneumatic valve to open or close the first pipeline upon receiving a second operational signal requiring powder to be conveyed through the first pipeline.

[0009] In some embodiments, the storage assembly further includes a metering tank disposed below the storage tank, the metering tank being in communication with the storage tank, and the discharge pipe of the metering tank extending into the melting tank. A pneumatic valve is disposed on the discharge pipe of the metering tank.

[0010] In some embodiments, the vacuum assembly further includes a filter disposed within the vacuum feeder for filtering gas flowing toward the negative pressure generator.

[0011] In some embodiments, the vacuum assembly further includes a backflush gas reservoir disposed on the vacuum feeder, the outlet of the backflush gas reservoir facing the filter. The control assembly further includes a second control valve disposed on the outlet of the backflush gas reservoir, the second control valve being electrically connected to the controller. The controller is configured to control the second control valve to open or close the outlet of the backflush gas reservoir upon receiving a third operation signal indicating that backflushing of the filter is required.

[0012] In some embodiments, the control assembly further includes a vibrator disposed on the vacuum feeder, the vibrator being electrically connected to the controller. The controller is configured to control the vibrator to vibrate upon receiving a fourth operational signal indicating that powder within the vacuum feeder needs to be conveyed downwards.

[0013] In some embodiments, the control assembly further includes a third control valve disposed on a second pipeline between the vacuum feeder and the storage tank, the third control valve being electrically connected to the controller. The controller is configured to control the third control valve to open or close the second pipeline upon receiving a fifth operation signal indicating that powder needs to be conveyed through the second pipeline.

[0014] In some embodiments, the powder is loaded in a product barrel, and the inlet of the vacuum feeder extends into the product barrel through a pipe. The bottom of the product barrel has a weighing device with remote transmission capability, which is electrically connected to the controller. The controller is used to control the weighing device to start weighing the powder in the product barrel upon receiving a sixth operation signal indicating that the weight of the powder in the product barrel needs to be obtained.

[0015] In some embodiments, the powder is loaded into a product barrel. The vacuum assembly further includes a product barrel emptying glove box disposed between the product barrel and the vacuum feeder. The product barrel emptying glove box includes a housing, an operating component, a drive component, and a suction gun. The operating component is disposed on the housing. The drive component is fixed inside the housing and electrically connected to the operating component. The suction gun is fixed to the drive component and located inside the housing, with one end connected to the feed inlet of the vacuum feeder via a telescopic hose, and the other end extending out of the housing and into the product barrel. The drive component is used to move the suction gun under the control of the operating component.

[0016] Secondly, embodiments of the present invention also provide a system for processing radioactive powder, including a product container, any of the powder conveying devices described above, a transport component, and a dissolving tank. The product container contains radioactive powder. The transport component is used to transport the product container to the inlet of the vacuum feeder. The dissolving tank is equipped with a pump impeller, and the dissolving tank is used to dissolve the powder under the stirring action of the pump impeller.

[0017] The radioactive powder processing system provided in this embodiment of the invention has the same beneficial effects as the powder conveying device described above, and will not be repeated here. Attached Figure Description

[0018] Figure 1 : A structural diagram of a radioactive powder processing system provided in an embodiment of the present invention;

[0019] Figure 2 : A structural diagram of a vacuum feeder provided in an embodiment of the present invention;

[0020] Figure 3 : A structural diagram of a product barrel emptying glove box provided in an embodiment of the present invention. Detailed Implementation

[0021] 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 embodiments.

[0022] Example 1:

[0023] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a powder conveying device for use in a nuclear power plant. The powder conveying device includes a vacuum assembly and a storage assembly. The vacuum assembly includes a vacuum feeder 6, a vacuum generator 12, and a negative pressure generator 4. The feed inlet 6A of the vacuum feeder 6 is used to draw in powder. The vacuum generator 12 is disposed inside the vacuum feeder 6 and close to the feed inlet 6A of the vacuum feeder 6, and is used to create a vacuum at the feed inlet 6A of the vacuum feeder 6 to draw in powder. The negative pressure generator 4 is connected to the vacuum feeder 6 and is used to maintain a negative pressure environment in the vacuum assembly. The storage assembly includes a storage tank 7, which is disposed below the vacuum feeder 6 and is connected to the vacuum feeder 6, for storing the powder entering the vacuum feeder 6 and conveying the stored powder outward.

[0024] For example, the powder described above is radioactive, and leakage of the powder needs to be prevented during the transport of the powder.

[0025] In some examples, the powder is loaded into product barrel 2, and the feed port 6A of the vacuum feeder 6 extends into product barrel 2 through a pipe.

[0026] The vacuum generated by the vacuum generator 12 allows the feed port 6A of the vacuum feeder 6 to draw powder from the product barrel 2 through the pipe extending into the product barrel 2, thus realizing the powder conveying.

[0027] For example, the negative pressure generator 4 can be a vacuum pump.

[0028] The air inlet of the negative pressure generator 4 is connected to the inside of the vacuum generator 12, which can maintain a negative pressure state inside the vacuum assembly, confining the powder inside the vacuum assembly and preventing the powder from leaking into the factory during the transportation process. This can meet the requirements of factory cleanliness and personnel radiation protection.

[0029] For example, the exhaust port of the negative pressure generator 4 can be set at the ventilation port of the orange zone, which can also prevent powder from leaking into the factory and meet the requirements of factory cleanliness and personnel radiation protection.

[0030] The storage tank 7 can temporarily store the powder sucked in by the vacuum generator 12, so as to avoid the vacuum generator 12 having too much powder in it and affecting its ability to suck in powder.

[0031] For example, every 0.5 hours, the vacuum generator 12 transfers powder to the storage tank 7, thereby maintaining a small amount of powder in the vacuum generator 12.

[0032] In some embodiments, such as Figure 2 As shown, the vacuum generator 12 is a jet-type vacuum generator, and the air inlet 12A of the jet-type vacuum generator passes through the outer wall of the vacuum feeder 6 and is connected to the compressed air pipeline.

[0033] A jet vacuum generator consists of a nozzle that contracts and then expands, a negative pressure chamber, and an interface pipe. The airflow enters through the inlet, passes through the nozzle, and exits as a high-speed jet. Due to the viscosity of the gas, the high-speed jet draws away the gas in the negative pressure chamber, creating a vacuum within that chamber.

[0034] Understandably, the feed port 6A of the vacuum feeder 6 is connected to the aforementioned negative pressure chamber in order to transfer the vacuum environment in the negative pressure chamber to the feed port 6A of the vacuum feeder 6.

[0035] The jet-type vacuum generator features a simple structure and high reliability, thus reducing the probability of vacuum generator 12 failure and the frequency of vacuum component maintenance. By adjusting the pressure and flow rate of the compressed air connected to the jet-type vacuum generator, the vacuum level of the vacuum environment generated by the jet-type vacuum generator can be quickly adjusted, thereby controlling the powder intake speed at the feed port 6A of the vacuum feeder 6.

[0036] Furthermore, the compressed air introduced by the jet vacuum generator can provide atmospheric protection for the powder entering the vacuum feeder 6, which helps to reduce the accumulation of powder that may clog the outlet of the vacuum feeder 6. Therefore, it can further reduce the probability of the vacuum feeder 6 malfunctioning and reduce the frequency of maintenance of the vacuum components.

[0037] In some embodiments, combined with Figure 1 and Figure 2 The powder conveying device also includes a control assembly, which includes a controller 13 and a first control valve 14. The first control valve 14 is disposed on the jet vacuum generator and is electrically connected to the controller 13. The controller 13 is used to control the first control valve 14 to open or close the jet vacuum generator when it receives a first operation signal that requires powder to be drawn from the feed port 6A of the vacuum feeder 6.

[0038] For example, controller 13 can be a programmable logic controller (PLC), which can receive, process and output instructions, and is commonly used in automated control systems.

[0039] For example, the first control valve 14 can be a solenoid valve. By inputting different electrical signals to the first control valve 14, the opening or closing of the first control valve 14 can be controlled, or the opening degree of the first control valve 14 can be controlled.

[0040] For example, the first operation signal mentioned above can be issued manually by the staff.

[0041] For example, staff can remotely issue the aforementioned first operation signal via control buttons on the control panel.

[0042] Alternatively, in other examples, the product barrel 2 is equipped with a sensor (e.g., a position sensor) for detecting whether the opening of the product barrel 2 is open. When the sensor detects that the opening of the product barrel 2 is open, it can send the detection result signal to the controller 13 so that the controller 13 can issue the first operation signal mentioned above based on the detection result signal.

[0043] With the above settings, the controller can control the opening, closing and opening degree of the first control valve 14, thereby controlling the vacuum generator 12 to start feeding, stop feeding or adjust the feeding speed. This enables remote automated control of the first control valve 14 by the operator, reduces the operator's contact with radioactive powder, and simplifies the operation of feeding through the vacuum generator 12.

[0044] In some embodiments, such as Figure 1 As shown, the outlet of the storage tank 7 is connected to the dissolving tank 10. The control assembly also includes a pneumatic valve 9 disposed on a first pipeline between the storage tank 7 and the dissolving tank 10, and the pneumatic valve 9 is electrically connected to the controller 13. The controller 13 is used to control the pneumatic valve 9 to open or close the first pipeline when it receives a second operation signal that requires powder to be conveyed through the first pipeline.

[0045] For example, the powder in the storage tank 7 can be conveyed to the dissolving tank 10 and dissolved in the dissolving tank 10.

[0046] For example, the pneumatic valve 9 includes a drive switch and an actuator. The drive switch is electrically connected to the controller 13. After receiving the second operation signal, the drive switch operates and opens or closes the first pipeline through the actuator.

[0047] For example, the conveying capacity of the pneumatic valve 9 ranges from 50 kg / h to 800 kg / h.

[0048] The pneumatic valve 9 is driven by gas and has a low failure rate. Therefore, by setting the pneumatic valve 9, the maintenance frequency of the control components can be reduced, thereby reducing labor costs.

[0049] For example, the second operation signal mentioned above can be issued manually by the staff.

[0050] For example, staff can remotely issue the aforementioned second operation signal via control buttons on the control panel.

[0051] Alternatively, the storage tank 7 may be equipped with a sensor (e.g., a weight sensor) to detect the amount of material inside the storage tank 7. When the sensor detects that there is a large amount of material inside the storage tank 7, it sends the detection result signal to the controller 13, so that the controller 13 issues the aforementioned second operation signal based on the detection result signal.

[0052] With the above settings, the pneumatic valve 9 can be opened or closed by the controller 13, thereby controlling whether the powder is transported through the first pipeline. This realizes remote automated control of the powder being transported from the storage tank 7 to the storage tank 7 through the first pipeline, reducing the contact between workers and radioactive powder.

[0053] In some embodiments, such as Figure 1 As shown, the storage assembly also includes a metering tank 8 located below the storage tank 7. The metering tank 8 is connected to the storage tank 7, and the discharge pipe of the metering tank 8 extends into the melting tank 10. A pneumatic valve 9 is installed on the discharge pipe of the metering tank 8.

[0054] For example, the pneumatic valve 9 can control whether the material in the metering tank 8 enters the dissolving tank 10.

[0055] With the above settings, the material entering the metering tank 8 from the storage tank 7 can be weighed. Then, the material in the metering tank 8 enters the dissolving tank 10 through the pneumatic valve 9. Therefore, the weight of the material entering the dissolving tank 10 can be accurately known.

[0056] In some embodiments, such as Figure 2 As shown, the vacuum assembly also includes a filter 15 disposed within the vacuum feeder 6, which is used to filter the gas flowing toward the negative pressure generator 4.

[0057] For example, the filter 15 is located in the upper part of the vacuum feeder 6, so that the amount of powder adhering to the filter 15 can be reduced due to the gravity of the powder.

[0058] By implementing the above settings, the amount of powder leaking from the vacuum feeder 6 to the negative pressure generator 4 can be reduced, thus reducing powder waste and preventing powder from clogging the negative pressure generator 4, thereby lowering the failure rate of the negative pressure generator 4.

[0059] In some embodiments, such as Figure 2 As shown, the vacuum assembly also includes a backflush gas reservoir 16 mounted on the vacuum feeder 6, with the outlet of the backflush gas reservoir 16 facing the filter 15. The control assembly also includes a second control valve 17 mounted on the outlet of the backflush gas reservoir 16, which is electrically connected to the controller 13. The controller 13 is used to control the second control valve 17 to open or close the outlet of the backflush gas reservoir upon receiving a third operation signal indicating that the filter 15 needs to be backflushed.

[0060] For example, the backflush gas tank 16 stores compressed gas.

[0061] For example, the second control valve 17 can be a solenoid valve.

[0062] After the second control valve 17 is opened, the compressed gas in the backflush gas tank 16 is ejected from the outlet, blowing away the powder adhering to the filter 15.

[0063] For example, the third operation signal mentioned above can be issued manually by the staff.

[0064] For example, staff can remotely send the aforementioned third operation signal through the control buttons on the control panel.

[0065] Alternatively, the backflush gas storage tank 16 is equipped with a timing device that sends a signal to the controller 13 every predetermined time interval (e.g., 0.2 hours) so that the controller 13 can issue a third operation signal based on the signal.

[0066] With the above settings, the controller 13 can control the opening or closing of the second control valve 17 to control whether the backflushing gas tank 16 backflushes the filter 15, realizing remote automated control of backflushing the filter 15, which can reduce the clogging of the filter 15 by powder and reduce the contact between workers and radioactive powder.

[0067] In some embodiments, such as Figure 2 As shown, the control assembly also includes a vibrator 18 mounted on the vacuum feeder 6, which is electrically connected to the controller 13. The controller 13 controls the vibrator 18 to vibrate upon receiving a fourth operation signal indicating that powder within the vacuum feeder 6 needs to be conveyed downwards.

[0068] For example, the vibrator 18 can be positioned near the discharge port of the vacuum feeder 6.

[0069] By setting up the vibrator 18, the falling of powder can be accelerated, which helps to speed up the speed at which the vacuum feeder 6 conveys powder outward.

[0070] For example, the fourth operation signal mentioned above can be issued manually by the staff.

[0071] For example, staff can remotely issue the fourth operation signal mentioned above through the control buttons on the control panel.

[0072] Alternatively, the vacuum feeder 6 may be equipped with a sensor (e.g., a position sensor) to detect whether the outlet of the vacuum feeder 6 is open. After the sensor detects that the outlet of the vacuum feeder 6 is open, the sensor sends the detection result signal to the controller 13, so that the controller 13 issues the aforementioned fourth operation signal based on the detection result signal.

[0073] The above settings enable remote automated control of the vibrator 18, which helps reduce the contact between workers and radioactive powder and speeds up the powder conveying speed of the vacuum feeder 6.

[0074] In some embodiments, the control assembly further includes a third control valve 19 disposed on the second pipeline between the vacuum feeder 6 and the storage tank 7, the third control valve 19 being electrically connected to the controller 13. The controller 13 is used to control the third control valve 19 to open or close the second pipeline upon receiving a fifth operation signal indicating that powder needs to be conveyed through the second pipeline.

[0075] For example, the third control valve 19 can be a solenoid valve.

[0076] After the third control valve 19 is opened, the powder temporarily stored in the vacuum feeder 6 can be transported to the storage tank 7 through the second pipeline.

[0077] For example, the fifth operation signal mentioned above can be issued manually by the staff.

[0078] For example, staff can remotely issue the fifth operation signal mentioned above through the control buttons on the control panel.

[0079] Alternatively, the vacuum feeder 6 is equipped with a timing device that starts timing after the vacuum feeder 6 begins to suck up powder. After the timing reaches a certain time (e.g., 0.2 hours), the timing device sends a signal to the controller 13, so that the controller 13 issues a fifth operation signal based on the signal.

[0080] With the above settings, remote automated control of the powder conveying from the vacuum feeder 6 to the storage tank 7 can be achieved, which helps to reduce the contact between workers and radioactive powder and avoids storing too much powder in the vacuum feeder 6.

[0081] In some embodiments, the bottom of the product container 2 has a weighing device 20 with remote transmission function, and the weighing device 20 is electrically connected to the controller 13. The controller 13 is used to control the weighing device 20 to start upon receiving a sixth operation signal indicating that the weight of the powder in the product container 2 needs to be obtained, so as to weigh the powder in the product container 2.

[0082] For example, the weight of the powder in the product barrel 2 weighed by the weigher 20 can be transmitted to a display, so that the staff can intuitively see the current weight of the powder in the product barrel 2.

[0083] By weighing the powder in product barrel 2 more than 20 times with a weighing device, the change in the weight of the powder in product barrel 2 can be obtained, and thus the weight of the powder entering the vacuum feeder 6 can be obtained.

[0084] For example, the sixth operation signal mentioned above can be issued manually by the staff.

[0085] For example, staff can remotely issue the sixth operation signal mentioned above through the control buttons on the control panel.

[0086] Alternatively, the first control valve 14 on the aforementioned vacuum generator 12 is equipped with a linkage device. When the first control valve 14 is open and the vacuum feeder 6 starts feeding, the linkage device sends the first status signal to the controller 13 according to the aforementioned status, so that the controller 13 issues a sixth operation signal according to the first status signal; when the first control valve 14 is closed and the vacuum feeder 6 stops feeding, the linkage device sends the second status signal to the controller 13, so that the controller 13 issues a sixth operation signal according to the second status signal. The total weight of powder absorbed by the vacuum feeder 6 can be obtained by weighing the powder in the product barrel 2 at the start of feeding and the powder in the product barrel 2 at the stop of feeding by the weighing device 20.

[0087] Through the above settings, remote automated control of the weighing device 20 can be achieved, which helps to reduce the contact between workers and radioactive powder, facilitates workers to obtain the weight of the powder in the product barrel 2 in a timely manner, and obtains the total weight of the powder picked up by the vacuum feeder 6. It can also control the feeding speed and feeding termination time of the vacuum feeder 6 by obtaining the weight of the powder in the product barrel 2 in real time.

[0088] In some embodiments, combined with Figure 1 and Figure 3 The vacuum assembly also includes a product barrel emptying glove box 3 disposed between the product barrel 2 and the vacuum feeder 6. The product barrel emptying glove box 3 includes a housing 21, an operating component 22, a drive component 23, and a suction gun 24. The operating component 22 is disposed on the housing 21. The drive component 23 is fixed inside the housing 21 and electrically connected to the operating component 22. The suction gun 24 is fixed to the drive component 23 and located inside the housing 21; one end of it is connected to the feed inlet of the vacuum feeder 6 via a telescopic hose, and the other end extends out of the housing 21 and into the product barrel 2. The drive component 23 is used to move the suction gun 24 under the control of the operating component 22.

[0089] For example, the enclosure 21 is also equipped with a shielding layer, a ventilation system, and a lighting and viewing system to facilitate staff to observe the operation of the various components inside the enclosure 21.

[0090] For example, the inlet of the vacuum feeder 6 is connected to the outlet on the housing 21, and the outlet on the housing 21 is connected to the suction gun 24 through a telescopic hose.

[0091] For example, the control component 22 can be a handle, the drive component 23 can be a robotic arm, and a transmission mechanism can also be provided between the drive component 23 and the suction gun 24 to transmit power.

[0092] By manipulating component 22, the operator can move the drive component 23 and drive the suction gun 24 to move.

[0093] With the above setup, operators use component 22 to operate drive component 23, causing suction gun 24 to accurately extend into product barrel 2 to extract powder from inside. Furthermore, the vacuum environment at the inlet of vacuum feeder 6 can be transmitted through pipes to suction gun 24. After suction gun 24 extends into product barrel 2, a negative pressure environment is created inside product barrel 2, preventing powder from overflowing from the barrel opening. This further controls radioactive powder within the conveying device, meeting the requirements for factory cleanliness and personnel radiation protection.

[0094] In some embodiments, such as Figure 1 As shown, the vacuum assembly also includes a filter device 5 disposed between the vacuum feeder 6 and the negative pressure generator 4, and the filter device 5 is provided with a removable filter element.

[0095] For example, the filtration accuracy of the filter device 5 is 15 μm.

[0096] The above-described setup allows for further filtration of the gas entering the negative pressure generator 4, removing powder particles and preventing damage to the generator. Furthermore, the replaceable filter element in the filtration device 5 reduces the difficulty of maintenance and repair.

[0097] Example 2

[0098] like Figure 1 As shown, this embodiment of the invention also provides a radioactive powder processing system, including a product container 2, the powder conveying device, the transport component 1, and a dissolving tank 10 as described in Embodiment 1 above. The product container 2 contains radioactive powder. The transport component 1 is used to transport the product container 2 to the inlet of the vacuum feeder 6. A pump impeller is installed in the dissolving tank 10, which is used to dissolve the powder under the stirring action of the pump impeller.

[0099] For example, the transport component 1 is a transport trolley, which is equipped with a lifting mechanism to move the product barrel 2 to a suitable position.

[0100] For example, the above-mentioned radioactive powder processing system can transport radioactive powder with a particle size range of 20 μm to 800 μm, and the transport capacity ranges from 200 kg / h to 1000 kg / h.

[0101] With the above setup, the radioactive powder in product barrel 2 can be transported to dissolving tank 10 for dissolution, reducing the spillage of radioactive powder during the transportation process, which helps to reduce the contact between workers and radioactive powder, and ensures the cleanliness of the factory and the radiation protection requirements of personnel.

[0102] 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 powder conveying device for conveying radioactive powder loaded in a product barrel (2), characterized in that, include: Vacuum components and storage components; The vacuum assembly includes: The vacuum feeder (6) has an inlet for sucking up powder; A vacuum generator (12), disposed within the vacuum feeder (6) and near the feed inlet of the vacuum feeder (6), is used to create a vacuum at the feed inlet of the vacuum feeder (6) to draw in powder; and, A negative pressure generator (4), connected to the vacuum feeder (6), is used to maintain a negative pressure environment for the vacuum assembly; and A product barrel emptying glove box (3) is disposed between the product barrel (2) and the vacuum feeder (6), the product barrel emptying glove box (3) comprising: Box (21); The control component (22) is disposed on the housing (21); The drive assembly (23) is fixed inside the housing (21) and electrically connected to the operating assembly (22); and, The suction gun (24) is fixed on the drive assembly (23) and located inside the housing (21). One end of the gun is connected to the feed port of the vacuum feeder (6) through a telescopic hose, and the other end extends out of the housing (21) and into the product barrel (2). The drive component (23) is used to drive the suction gun (24) to move under the control of the manipulation component (22); The storage component includes a storage tank (7), which is located below the vacuum feeder (6) and communicates with the vacuum feeder (6) for storing powder entering the vacuum feeder (6) and conveying the stored powder outward.

2. The powder conveying device according to claim 1, characterized in that, The vacuum generator (12) is a jet-type vacuum generator, and the air inlet of the jet-type vacuum generator passes through the outer wall of the vacuum feeder (6) and is connected to the compressed air pipeline.

3. The powder conveying device according to claim 2, characterized in that, The powder conveying device also includes a control component, which includes a controller (13) and a first control valve (14). The first control valve (14) is disposed on the jet vacuum generator and is electrically connected to the controller (13); The controller (13) is used to control the first control valve (14) to open the jet vacuum generator when it receives a first operation signal that requires powder to be sucked in from the feed port of the vacuum feeder (6).

4. The powder conveying device according to claim 3, characterized in that, The outlet of the storage tank (7) is connected to the dissolving tank (10); The control assembly also includes a pneumatic valve (9) disposed on a first pipeline between the storage tank (7) and the dissolving tank (10), the pneumatic valve (9) being electrically connected to the controller (13); The controller (13) is used to control the pneumatic valve (9) to open the first pipeline when a second operation signal is received requiring powder to be transported through the first pipeline.

5. The powder conveying device according to claim 4, characterized in that, The storage assembly also includes a metering tank (8) disposed below the storage tank (7), the metering tank (8) being connected to the storage tank (7), and the discharge pipe of the metering tank (8) extending into the dissolving tank (10); The pneumatic valve (9) is installed on the discharge pipe of the metering tank (8).

6. The powder conveying device according to claim 3, characterized in that, The vacuum assembly also includes a filter (15) disposed within the vacuum feeder (6), the filter (15) being used to filter the gas flowing toward the negative pressure generator (4).

7. The powder conveying device according to claim 6, characterized in that, The vacuum assembly also includes a backflush gas tank (16) disposed on the vacuum feeder (6), with the outlet of the backflush gas tank (16) facing the filter (15). The control assembly also includes a second control valve (17) disposed on the outlet of the backflush gas tank (16), the second control valve (17) being electrically connected to the controller (13); The controller (13) is used to control the second control valve (17) to open the outlet of the backflush gas tank (16) when a third operation signal is received indicating that the filter (15) needs to be backflushed.

8. The powder conveying device according to claim 3, characterized in that, The control assembly also includes a vibrator (18) disposed on the vacuum feeder (6), the vibrator (18) being electrically connected to the controller (13); The controller (13) is used to control the vibrator (18) to vibrate when it receives a fourth operation signal that requires the powder in the vacuum feeder (6) to be conveyed downward.

9. The powder conveying device according to claim 3, characterized in that, The control assembly also includes a third control valve (19) disposed on a second pipeline between the vacuum feeder (6) and the storage tank (7), the third control valve (19) being electrically connected to the controller (13); The controller (13) is used to control the third control valve (19) to open the second pipeline when a fifth operation signal is received indicating that powder needs to be transported through the second pipeline.

10. The powder conveying device according to claim 3, characterized in that, The powder is loaded into the product barrel (2), and the feed port of the vacuum feeder (6) extends into the product barrel (2) through a pipe; The bottom of the product barrel (2) has a weighing device (20) with remote transmission function, and the weighing device (20) is electrically connected to the controller (13). The controller (13) is used to control the weigher (20) to start when a sixth operation signal is received indicating that the weight of the powder in the product barrel (2) needs to be obtained, so as to weigh the powder in the product barrel (2).

11. A system for processing radioactive powder, characterized in that, include: Product barrel (2), wherein radioactive powder is placed inside the product barrel (2); The powder conveying device as described in any one of claims 1 to 10; Transport component (1) for transporting the product barrel (2) to the feed port of the vacuum feeder (6); and, A dissolving tank (10) is provided with a pump wheel, and the dissolving tank (10) is used to dissolve powder under the stirring of the pump wheel.

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