Extraction and separation device

Abstract

The present application relates to the technical field of extraction and separation, and proposes an extraction and separation device, comprising: a main body, on which a sample tray, a reagent bottle and an extraction column tray are provided, and the extraction column tray is provided with a plurality of separation columns, which are used for the selective adsorption and separation of the uranium matrix and impurity elements; a first robotic arm, which is provided on the main body; a liquid adding component, which is provided on the first robotic arm, and the liquid adding component is used to take liquid from the reagent bottle and perform liquid adding operations; a pipetting component, which is provided on the first robotic arm, and the pipetting component is used to take samples from the sample tray and perform sample loading operations; a second robotic arm, which is provided on the main body; a pressurizing device, which is provided on the second robotic arm, and the pressurizing device is used to perform a sealing and pressurizing operation on the separation column; a receiving component, which is provided on the main body, and the receiving component can move relative to the main body, and the receiving component is used to collect sample solutions and waste liquids. It solves many problems in manual separation operations and realizes the automatic completion of the entire process of sample loading, rinsing, elution, receiving, volume determination, and waste liquid collection.

Description

Technical Field

[0001] The present application relates to the technical field of extraction and separation, and in particular to an extraction and separation device. Background Art

[0002] The physical and chemical properties, composition, and distribution of fuel elements are closely linked to the core power distribution. The levels of impurities (such as cadmium, chromium, gadolinium, samarium, thorium, molybdenum, tin, dysprosium, and europium) in the fuel directly impact reactor safety. Chromatographic separation is typically used to separate these impurities. However, this method is cumbersome, time-consuming, and labor-intensive, significantly impacting work progress and efficiency. Furthermore, fuel elements often contain significant amounts of uranium, and manual separation can easily contaminate the laboratory environment and expose humans to radiation.

[0003] Therefore, how to overcome the above-mentioned defects becomes a problem that needs to be solved urgently. Summary of the Invention

[0004] In order to solve the technical problems of large manpower requirements in fuel and material analysis, which affects work progress and efficiency, and easily causes laboratory environment contamination and human radioactive exposure, the present application proposes an extraction and separation device.

[0005] In view of this, the present application proposes an extraction and separation device for the automated separation of uranium matrices in fuel and material analysis, comprising: a main body, on which a sample tray, a reagent bottle and an extraction column tray are provided, and the extraction column tray is provided with multiple separation columns, which are used for the selective adsorption and separation of the uranium matrix and impurity elements; a first robotic arm, which is arranged on the main body; a liquid adding component, which is arranged on the first robotic arm, and the liquid adding component is used to take liquid from the reagent bottle and perform liquid adding operations; a pipetting component, which is arranged on the first robotic arm, and the pipetting component is used to take samples from the sample tray and perform sample loading operations; a second robotic arm, which is arranged on the main body; a pressurizing device, which is arranged on the second robotic arm, and the pressurizing device is used to perform a sealing and pressurizing operation on the separation column; a receiving component, which is arranged on the main body, and the receiving component can move relative to the main body, and the receiving component is used to collect sample solution and waste liquid.

[0006] The extraction and separation device provided in this application includes a main body, a first robotic arm, a liquid adding component, a pipetting component, a second robotic arm, a pressurizing device and a receiving component. The components work together to achieve fully automated operation of separating uranium matrix and impurity elements.

[0007] The sample tray holds the sample to be processed, while the reagent bottles contain the reagents used for extraction and separation. Each reagent is stored separately, and the extraction column tray integrates multiple separation columns to support batch separation of samples. The separation columns are filled with specific adsorption materials (such as TBP resin or leaching resin), which selectively adsorb uranium at specific acidity levels, separating impurity elements from the extraction material matrix.

[0008] The first and second robotic arms work in tandem. The dosing and pipetting components move with the first arm, while the pressurizing device moves with the second. The first arm handles liquid operations (dosing / pipetting / sampling / loading). The dosing component precisely controls the addition of reagents, while the pipetting component enables quantitative transfer of samples. The second arm applies controlled pressure to the separation column, accelerating the diffusion and binding of uranyl ions within the adsorbent material and shortening separation time.

[0009] The receiving component adopts a movable design and automatically locates according to the position of the separation column to achieve classified collection of sample solution and waste liquid.

[0010] The extraction and separation device provided in this application automatically completes the entire process of loading, rinsing, eluting, receiving, volume setting, and waste liquid classification and collection. The entire process is completed by the first robotic arm, the second robotic arm and program control, which reduces human operating errors, improves separation work efficiency, reduces labor costs, and avoids environmental radioactive pollution and human radioactive damage.

[0011] In some technical solutions, optionally, the liquid adding component includes: multiple injection pumps, which are arranged on the first robotic arm, and the multiple injection pumps are used to take liquid from the reagent bottle and add liquid to the separation column; the reagent bottle stores activation liquid, washing liquid and eluent; the pressure regulating structure is arranged on the injection pump, which is used to control the liquid taking speed and liquid adding speed.

[0012] In some technical solutions, optionally, the liquid adding component also includes: a reagent pipeline group, the reagent pipeline group includes multiple pipelines, one end of each pipeline is connected to an injection pump, and each pipeline is used for adding different reagents; a multi-way control valve, connected to all pipelines of the reagent pipeline group, and realizing selective circulation of different reagents by switching the valve position.

[0013] In some technical solutions, optionally, the pipetting assembly includes: a plurality of samplers, which are arranged on the first robotic arm, and the plurality of samplers can realize sampling and loading operations of a plurality of samples.

[0014] In some technical solutions, optionally, the number of the second robotic arms is at least two, and the at least two second robotic arms are arranged opposite to each other; each second robotic arm is provided with at least one pressurizing device.

[0015] In some technical solutions, optionally, the receiving component includes a sample receiving tray and a waste liquid collection tank, and the extraction and separation device also includes: a guide rail, arranged below the sample receiving tray and the waste liquid collection tank, the sample receiving tray can move along the guide rail to receive the sample solution, and the waste liquid collection tank can move along the guide rail to receive the waste liquid.

[0016] In some technical solutions, optionally, the pressurizing device includes: an air circuit, arranged on the second robotic arm, for adjusting the air pressure in the separation column; a sealing layer, arranged on the air circuit, the sealing layer being used to seal the air circuit; and a sealing cover, arranged on the second robotic arm, for sealing the outer port of the separation column.

[0017] In some technical solutions, optionally, the extraction and separation device further includes: a waste liquid bottle, the waste liquid bottle includes a first waste liquid bottle and a second waste liquid bottle, the first waste liquid bottle and the second waste liquid bottle are used to store different waste liquids; a peristaltic pump, arranged on the main body, the peristaltic pump is used to pump the waste liquid collected in the waste liquid collection tank to the waste liquid bottle.

[0018] In some technical solutions, optionally, the extraction and separation device also includes: a control system, which is connected to the first robotic arm, the liquid adding component, the pipetting component, the second robotic arm, the pressurizing device and the receiving component, and the control system can issue control instructions to the first robotic arm, the liquid adding component, the pipetting component, the second robotic arm, the pressurizing device and the receiving component.

[0019] In some technical solutions, optionally, the first robotic arm and the second robotic arm are two-axis robotic arms, and the surfaces of the first robotic arm and the second robotic arm are coated with an anti-corrosion material layer.

[0020] Compared with the existing technology, this application has the following technical effects:

[0021] The extraction and separation device provided in this application can automatically extract and separate impurity elements in fuel elements, and is used to realize the automated separation of uranium matrices in various fuel and material analyses. It accurately adds activation liquid, rinsing liquid, and eluent based on a high-precision injection pump, and uses a pipette-type pipetting and adding module to fully transfer and load the sample solution, automatically pierce the gun tip, and automatically remove the gun tip, thereby realizing the automatic completion of the entire process of automatic loading, rinsing, elution, receiving, volume adjustment, and waste liquid classification and collection.

[0022] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 A schematic structural diagram of an extraction and separation device according to an embodiment of the present application is shown;

[0025] Figure 2 A schematic diagram of a system flow path of an extraction and separation device according to an embodiment of the present application is shown;

[0026] Figure 3A schematic structural diagram of an extraction and separation device according to another embodiment of the present application is shown;

[0027] Figure 4 A schematic structural diagram of a first robotic arm according to an embodiment of the present application is shown;

[0028] Figure 5 A schematic diagram showing a sample loading state of a first robotic arm according to an embodiment of the present application is shown;

[0029] Figure 6 A schematic structural diagram of a receiving component according to an embodiment of the present application is shown;

[0030] Figure 7 A schematic structural diagram of a waste gun tip box of a receiving assembly according to one embodiment of the present application is shown;

[0031] Figure 8 Shown Figure 3 A schematic structural diagram of the extraction and separation device of the illustrated embodiment in an open cover state;

[0032] Figure 9 The figure shows an elution curve diagram of an extraction and separation device for automatically separating a uranium matrix according to an embodiment of the present application.

[0033] in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names is as follows:

[0034] 100 Extraction and separation device, 110 main body, 112 sample tray, 114 reagent bottle, 116 extraction column tray, 118 gun tip box, 119 waste gun tip box, 120 first robotic arm, 130 liquid adding assembly, 132 syringe pump, 136 reagent pipeline group, 138 multi-way control valve, 140 pipetting assembly, 142 sampler, 150 second robotic arm, 160 pressurizing device, 166 sealing cover, 170 receiving assembly, 172 sample receiving tray, 174 waste liquid collection tank, 180 guide rail, 190 peristaltic pump, 192 waste liquid bottle. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0037] Refer to the following Figures 1 to 9An extraction separation device 100 according to some embodiments of the present application is described.

[0038] like Figure 1 、 Figure 3 and Figure 8 As shown, the present application proposes an extraction and separation device 100 for the automated separation of uranium matrix in fuel and material analysis, comprising: a body 110, on which is disposed a sample tray 112, a reagent bottle 114, and an extraction column tray 116, on which are disposed a plurality of separation columns for selectively adsorbing and separating the uranium matrix and impurity elements; a first robotic arm 120, disposed on the body 110; a liquid adding assembly 130, disposed on the first robotic arm 120, for collecting liquid from the reagent bottle 114; and a liquid adding assembly 130 for collecting liquid from the reagent bottle 114. 4 and performs a liquid adding operation; a pipetting component 140, which is provided on the first robotic arm 120, and the pipetting component 140 is used to take a sample from the sample tray 112 and perform a sample loading operation; a second robotic arm 150, which is provided on the main body 110; a pressurizing device 160, which is provided on the second robotic arm 150, and the pressurizing device 160 is used to perform a sealing and pressurizing operation on the separation column; a receiving component 170, which is provided on the main body 110, and the receiving component 170 can move relative to the main body 110, and the receiving component 170 is used to collect sample solution and waste liquid.

[0039] The extraction and separation device 100 provided in the present application includes a body 110, a first robotic arm 120, a liquid adding component 130, a pipetting component 140, a second robotic arm 150, a pressurizing device 160 and a receiving component 170. The components work together to achieve fully automated operation of uranium matrix separation.

[0040] Sample tray 112 stores samples to be processed, while reagent bottles 114 contain reagents used for extraction and separation. Each reagent is stored separately. Extraction column tray 116 integrates multiple separation columns to support batch separation of samples. These columns are filled with specific adsorption materials (such as TBP resin or leaching resin), which selectively adsorb uranium at specific acidity levels, separating impurity elements from the extraction material matrix.

[0041] The first and second robotic arms 120 and 150 work in a collaborative manner. The liquid adding assembly 130 and the pipetting assembly 140 can move with the first robotic arm 120, while the pressurizing device 160 can move with the second robotic arm 150. The first robotic arm 120 is responsible for liquid operations (liquid addition / pipetting / sampling / loading). The liquid adding assembly 130 precisely controls the addition of reagents, while the pipetting assembly 140 enables quantitative transfer of samples to be processed. The second robotic arm 150 applies controllable pressure to the separation column, accelerating the diffusion and binding of uranyl ions in the adsorbent material and shortening separation time.

[0042] The receiving component 170 adopts a movable design and automatically positions itself according to the position of the separation column to achieve classified collection of sample solution and waste liquid.

[0043] The extraction and separation device 100 provided in the present application automatically completes the entire process including sample loading, rinsing, elution, receiving, volume setting, and waste liquid classification and collection. The entire process is completed by the first robotic arm 120, the second robotic arm 150 and program control, which reduces human operation errors, improves separation work efficiency, reduces labor costs, and avoids environmental radioactive pollution and human radioactive damage.

[0044] In some embodiments, optionally, as Figure 2 As shown, the liquid adding component 130 includes: multiple injection pumps 132, which are arranged on the first robotic arm 120, and the multiple injection pumps 132 are used to take liquid from the reagent bottle 114 and add liquid to the separation column; the reagent bottle 114 stores activation liquid, washing liquid and eluent; a pressure regulating structure, which is arranged on the injection pump 132, is used to control the liquid taking speed and liquid adding speed.

[0045] In this embodiment, the liquid addition assembly 130 includes multiple syringe pumps 132 and a pressure-regulating structure. Reagent bottles 114 contain activation solution, eluent, and elution solution. The syringe pumps 132 and pressure-regulating structure precisely control the delivery of the reagents, ensuring efficient and reliable uranium matrix separation.

[0046] Each syringe pump 132 can independently control the addition of different reagents (such as activation solution, washing solution, and eluent) through different lines to avoid cross contamination between different reagents.

[0047] By adjusting the pressure output of the pressure regulating structure (such as a pneumatic drive or an electric plunger), accurate control of the liquid extraction speed (sucking liquid from the reagent bottle 114) and the liquid addition speed (injecting liquid into the separation column) is achieved.

[0048] The pressure regulating structure can integrate a pressure sensor to monitor the pipeline resistance in real time and automatically adjust the pressurization parameters to prevent the risk of leakage caused by pipeline blockage or excessive column pressure.

[0049] Reagent bottles 114 feature independent liquid storage, with labels or QR codes identifying the reagent type and expiration date, enabling automated identification and dispatch. When the remaining reagent level falls below a threshold, the system automatically triggers an alarm and generates a replenishment list.

[0050] For perishable reagents, the reagent bottle 114 can be integrated with a micro-refrigeration module to maintain the storage environment temperature and extend the service life of the reagent.

[0051] The liquid addition assembly 130 achieves full automation and intelligence of the separation process through the maneuverability of the first robotic arm 120, the precision of the injection pump 132, and the controllability of the pressure regulating structure, significantly improving the reliability, repeatability, and analysis throughput of uranium matrix analysis.

[0052] In some embodiments, optionally, as Figure 2 As shown, the liquid adding component 130 also includes: a reagent pipeline group 136, the reagent pipeline group 136 includes multiple pipelines, one end of each pipeline is connected to the injection pump 132, and each pipeline is used for adding different reagents; a multi-way control valve 138, which is connected to all pipelines of the reagent pipeline group 136, and realizes the selective circulation of different reagents by switching the valve position.

[0053] In this embodiment, the liquid adding assembly 130 further includes a reagent pipeline assembly 136 and a multi-way control valve 138. The reagent pipeline assembly 136 includes multiple pipelines, which can achieve parallel management of multiple reagents.

[0054] The number of reagent line groups 136 is the same as the number of syringe pumps 132. Each line of a single reagent line group 136 is independently connected to a specific reagent reservoir in the reagent bottle 114, forming a physically isolated liquid channel to avoid cross contamination between different reagents.

[0055] The number of pipelines can be flexibly expanded according to demand, supporting the parallel use of more types of reagents and adapting to complex separation processes.

[0056] The multi-way control valve 138 can precisely control the flow of reagents. By rotating the valve core or electromagnetically actuating it, the multi-way control valve 138 can switch the valve position, connecting the target reagent line to the separation column while keeping other lines closed.

[0057] If a pipeline is blocked or leaking, the multi-way control valve 138 can immediately close the passage and trigger an alarm to prevent contamination from spreading to other reagents or separation columns.

[0058] Through the coordinated action of the reagent pipeline group 136 and the multi-way control valve 138, precise control of reagent delivery, high automation of the process and significant improvement of analysis throughput are achieved.

[0059] In some embodiments, optionally, as Figure 1 、 Figure 4 and Figure 5 As shown, the pipetting assembly 140 includes a multi-channel sampler 142 disposed on the first robotic arm 120 . The multi-channel sampler 142 can implement sampling and loading operations of multiple samples.

[0060] In this embodiment, the pipetting assembly 140 includes a multi-channel sampler 142, which can be loaded with multiple pipette tips at a time to simultaneously aspirate samples from the sample tray 112. After sampling, the first robotic arm 120 moves directly to the top of the separation column, achieving a seamless "sampling-movement-loading" process.

[0061] Relying on the closed-loop control system of the first robotic arm 120, the sampling gun head can be accurately positioned to avoid droplet residue or cross contamination. Figure 7 As shown, after the sample is loaded, the gun tip can be automatically removed. The motor drive control is used to automatically control the removal of the gun tip. The mechanical force is small and the structure is stable. The discarded gun tip can be automatically placed in the waste gun tip box 119.

[0062] Through the cooperation of the multi-channel sampler 142 and the first robotic arm 120, high efficiency, accuracy and process automation of sample processing are achieved.

[0063] In some embodiments, optionally, as Figure 1 As shown, there are at least two second robotic arms 150 , and at least two second robotic arms 150 are arranged opposite to each other; each second robotic arm 150 is provided with at least one pressurizing device 160 .

[0064] In this embodiment, there are at least two second robotic arms 150 , and each second robotic arm 150 is provided with at least one pressurizing device 160 .

[0065] At least two second robotic arms 150 are disposed opposite to each other and can be independently applied to different extraction column disks 116. This can multiply the throughput of a multi-column separation system (such as a 4-column or 8-column system) and improve the analytical throughput.

[0066] The relatively arranged robotic arms can form a "mirror" motion trajectory within a limited space, reducing the risk of collision between robotic arms while expanding the operating coverage.

[0067] Each second robotic arm 150 is equipped with at least one pressurizing device 160, which independently adjusts the operating pressure of the corresponding separation column. This device 160 supports programmable pressure changes to adapt to the needs of the separation process. The coordinated and independent pressure control of at least two second robotic arms 150 ensures efficient, flexible, and scalable separation system.

[0068] In some embodiments, optionally, as Figure 1 and Figure 6 As shown, the receiving component 170 includes a sample receiving tray 172 and a waste liquid collection tank 174, and the extraction and separation device 100 also includes: a guide rail 180, which is arranged below the sample receiving tray 172 and the waste liquid collection tank 174, and the sample receiving tray 172 can move along the guide rail 180 to receive the sample solution, and the waste liquid collection tank 174 can move along the guide rail 180 to receive the waste liquid.

[0069] In this embodiment, the receiving component 170 includes a sample receiving tray 172 and a waste liquid collection tank 174, and a guide rail 180 is provided below the sample receiving tray 172 and the waste liquid collection tank 174. The sample receiving tray 172 moves along the guide rail 180 and can be accurately positioned at the sample solution output position. The waste liquid collection tank 174 moves along the guide rail 180 and dynamically adjusts its position according to the waste liquid generation rate. Each separation column is allocated an independent waste liquid tank to avoid cross contamination. The waste liquid tank is equipped with a weighing sensor or an infrared liquid level meter to monitor the amount of waste liquid in real time. When the preset threshold is reached, a reminder is issued.

[0070] Automated waste management reduces the risk of human contact with hazardous reagents and lowers the probability of laboratory accidents. The sample receiving tray 172 and waste collection trough 174 can be moved to the edge of the device when not in use, facilitating maintenance. The rail-mounted receiving assembly 170 design enables flexible management, intelligent monitoring, and efficient processing of samples and waste.

[0071] In some embodiments, optionally, as Figure 1 and Figure 3 As shown, the pressurizing device 160 includes: an air circuit, which is arranged on the second robotic arm 150 and is used to adjust the air pressure in the separation column; a sealing layer, which is arranged on the air circuit and is used to seal the air circuit; and a sealing cover 166, which is arranged on the second robotic arm 150 and is used to seal the outer port of the separation column.

[0072] In this embodiment, pressurizing device 160 comprises a gas circuit, a sealing layer, and a sealing cap 166. The gas circuit regulates gas flow via a solenoid valve or proportional valve, enabling precise control of the pressure within the separation column. The gas circuit sealing layer forms a compression seal at the gas circuit interface, preventing gas leakage, ensuring pressure stability, and preventing pressure fluctuations that could affect the separation effect.

[0073] The separation column sealing cap 166, located at the end of the robotic arm and driven pneumatically or electrically, quickly docks with the column opening after reaching the separation column position, completing the seal. Automatic opening and closing of the sealing cap 166 reduces the risk of manual contact with the high-temperature, high-pressure column. Dynamic control of the gas path and a dual-seal design ensure the efficiency, safety, and scalability of the separation system.

[0074] like Figure 8 As shown, in some embodiments, optionally, the extraction and separation device 100 further includes: a waste liquid bottle 192, the waste liquid bottle 192 includes a first waste liquid bottle and a second waste liquid bottle, the first waste liquid bottle and the second waste liquid bottle are used to store different waste liquids; a peristaltic pump 190, which is arranged on the main body 110, and the peristaltic pump 190 is used to pump the waste liquid collected in the waste liquid collection tank 174 to the waste liquid bottle 192.

[0075] In this embodiment, the extraction and separation device 100 further includes a waste liquid bottle 192 and a peristaltic pump 190. Waste liquid bottle 192 is made of corrosion-resistant material. A capacitive or ultrasonic level sensor is built into waste liquid bottle 192. When the waste liquid level approaches a capacity threshold, an early warning system is automatically triggered, notifying the operator to replace waste liquid bottle 192.

[0076] Specifically, the first waste liquid bottle is used to store uranium-containing waste liquid, and the second waste liquid bottle is used to store uranium-free waste liquid, so that uranium-containing waste liquid and non-uranium-free waste liquid can be discharged separately to minimize radioactive waste.

[0077] Peristaltic pump 190 compresses the elastic hose to generate negative pressure, pumping waste liquid from the collection tank to waste liquid bottle 192. This prevents the pump from coming into direct contact with corrosive waste liquid, extending the life of the equipment. Precise control of waste liquid flow is achieved by adjusting the pump head speed or hose inner diameter.

[0078] The peristaltic pump 190 is equipped with a one-way valve to prevent waste liquid from flowing back into the collection tank during shutdown, ensuring a one-way flow of waste liquid. Through the safe storage of waste liquid in the waste bottle 192 and the precise delivery of the peristaltic pump 190, efficient, safe and compliant waste liquid management is achieved.

[0079] In some embodiments, optionally, the extraction and separation device 100 further includes: a control system, which is connected to the first robotic arm 120, the liquid adding component 130, the pipetting component 140, the second robotic arm 150, the pressurizing device 160 and the receiving component 170, and the control system can issue control instructions to the first robotic arm 120, the liquid adding component 130, the pipetting component 140, the second robotic arm 150, the pressurizing device 160 and the receiving component 170.

[0080] In this embodiment, the extraction and separation device 100 further includes: a control system, which is controlled by a computer program and has high control accuracy, good stability, and is very convenient to operate.

[0081] The control system can realize the coordinated control of multiple components and full process automation, and coordinate the control of the actions of the first robotic arm 120 (sample transfer), the liquid adding component 130 (reagent addition), the pipetting component 140 (precise sampling), the second robotic arm 150 (separation column pressurization operation), the pressurizing device 160 (pressure regulation) and the receiving component 170 (sample / waste liquid collection).

[0082] The control system uses a dynamic scheduling algorithm to adjust the timing of each component's operation in real time based on its operating status. For example, while the liquid adding component 130 is injecting reagents, the first robotic arm 120 is pre-loading the next sample, reducing waiting time.

[0083] The system collects operating parameters of each component (such as robotic arm position, pressure, and liquid level) in real time, displaying system status on a dashboard interface. Pressure warning: When the pressure within the separation column exceeds the set threshold, an alarm is automatically triggered and the experiment is paused. Liquid level monitoring: When the waste liquid collection tank 174 is nearing full, it automatically switches to a backup tank. The system precisely controls the operation of each component (such as robotic arm positioning accuracy and pressure control precision). The integrated control system design achieves a high degree of automation, intelligence, and informationization for the pressurizing device 160.

[0084] In some embodiments, optionally, the first robotic arm 120 and the second robotic arm 150 are two-axis robotic arms, and the surfaces of the first robotic arm 120 and the second robotic arm 150 are coated with an anti-corrosion material layer.

[0085] In this embodiment, a two-axis robotic arm can be driven by a stepper motor or servo motor to achieve precise positioning within a set plane (e.g., a horizontal plane). The precise positioning and optimized motion of the two-axis robotic arm increase the sample and reagent transfer speed, adapting to the needs of high-throughput separations.

[0086] The control system uses a path planning algorithm to avoid collisions between multiple robotic arms during movement, improving efficiency. The first and second robotic arms 120 and 150 are entirely coated with PVC (polyvinyl chloride) anti-corrosion material to effectively protect against acid corrosion.

[0087] The separation system achieves high efficiency, stability and durability through precise motion control of the two-axis robotic arm and chemical protection of the anti-corrosion material layer.

[0088] In a specific embodiment, Figure 2 As shown, the system fluidics utilize eight high-precision syringe pumps 132 (P1, P2, ..., P8) for liquid addition and pipetting operations. Liquid lines utilize 1 / 8" PTFE (polytetrafluoroethylene) tubing. A separate gas line provides pressurization. Syringe pumps P1-P8 132 utilize 10 mL syringes to power liquid aspiration. A multi-way control valve 138 switches between reagents, such as activation solution, eluent, and wash solution. The gas line controls the flow rate through the column.

[0089] like Figure 1 As shown, the present application adopts a first robotic arm 120 and two second robotic arms 150, and all three robotic arms are two-axis robotic arms. The robotic arms are entirely coated with PVC anti-corrosion material, which can effectively avoid the corrosion of acid.

[0090] The first robotic arm 120 integrates a dosing module (dosing assembly 130) and a pipetting module (pipetting assembly 140). The dosing module includes eight syringe pump lines and a sealed, pressurized, and speed-regulating mechanism (pressure regulating mechanism). These eight lines independently add reagents, supporting the independent addition of different reagents such as eluents and elutions, enabling both integrated and individual dosing. The liquid-contacting materials are all PTFE, resistant to strong acids (such as HNO3, HCl, HF, and HCLO4). The syringe pump 132 ensures accurate dosing. With a 10 ml syringe, the dosing accuracy is better than 10 ml ± 0.1 ml.

[0091] The pipetting module integrates an 8-channel automatic sampler to realize the functions of automatic withdrawal of the gun tip, automatic sampling, loading, and the addition of various reagents such as activation liquid, washing liquid and eluent in the separation column. The sampler 142 is set at the end of the first robotic arm 120 and can be accurately transferred to the sample tube with the first robotic arm 120 to perform simultaneous sampling and loading operations of 8 samples to ensure sample processing efficiency. The occurrence of cross contamination between samples is avoided. The device is designed with an automatic gun tip removal structure, which adopts motor drive control to automatically control the gun tip removal action. The mechanical force is small and the structure is stable. The discarded gun tips can be automatically placed in the waste gun tip box 119.

[0092] The pressurizing device 160 installed on the second robotic arm 150 is equipped with an air circuit and a sealing ring, which controls the flow rate by adjusting the air pressure. The polyurethane sealing cover and the outer port are sealed to prevent cross contamination. The design of the seal can ensure that the column always remains under pressure during the extraction process.

[0093] Sample tray 112 is constructed of corrosion-resistant plastic, ensuring strength, portability, and reliability. Each tray holds 16 sample receiving tubes, each row accommodating eight samples, corresponding to the automated sampling and loading channels. Sample tray 112 features a tilted design, allowing sample tubes to be positioned at an angle, ensuring complete transfer and minimizing sample loss.

[0094] The extraction column tray 116 is made of corrosion-resistant plastic and holds 16 separation columns (8 per tray, for a total of two trays). Columns can be inserted from the top, making replacement easy. Column dimensions can be customized to meet specific requirements. The tray features a universal interface for storing separation columns, ensuring uniform placement. The number of channels per row matches that of the tip box 118 and sample tray 112.

[0095] The sample solution and waste liquid receiver is designed to be horizontally movable, with a motor-driven horizontal guide rail 180. This allows for automatic movement of the sample solution and waste liquid receiver to the bottom of the separation column according to the configured flow. The sample receiving tray 172 has 16 slots across two trays, each with 8 slots. Each row can accommodate eight sample tubes, each containing a 25ml volumetric flask. After receiving the sample solution, the entire tray can be manually removed for volume adjustment.

[0096] Waste liquid collection troughs 174 are provided on both sides of the sample receiving tray 172. The bottom of each trough is connected to a waste liquid collection bucket. The waste liquid collection troughs 174 are made of corrosion-resistant materials and can be discharged to a designated waste liquid bottle via a peristaltic pump, realizing automatic waste liquid collection and transfer functions, meeting the requirements of laboratory waste liquid management regulations. The waste liquid collection troughs 174 have a certain tilt angle, so that even when the waste liquid is small, it can be discharged into the waste liquid collection bucket. In addition, a fixed position is provided for reagent rinse waste liquid. The volume of each waste liquid collection trough 174 is approximately 200 ml.

[0097] The control system is controlled by a computer program, with high control accuracy, good stability and easy operation.

[0098] Verification method of the extraction and separation device 100: First, a simulated solution containing elements such as Fe, Mn, Co, Ni, Cu, Zn, Ba, Cr, V, Ti, Mo, Mg, Pb, and Al was prepared, and the elution curve of the simulated solution separated by the automatic extraction and separation device was verified. The experimental results are as follows: Figure 9 As shown in the figure, the experimental results show that as the elution volume increases, each element is eluted from the separation column. All elements reach their maximum elution volume at an elution volume of 4 mL. When the elution volume increases to 10 mL, most elements are eluted. The experimental results demonstrate that the extraction and separation device 100 can effectively separate impurity elements.

[0099] The extraction column tray 116 is equipped with 16 separation columns (8 columns per tray, a total of 2 tray designs), namely extraction column tray A and extraction column tray B. The following is the automated operation logic of the extraction and separation device 100 provided in this application for batch processing of 16 samples:

[0100] (1) Preparation: The laboratory operator places the sample to be processed in the designated sample rack, edits the separation method in the system software, including activation solution, eluent, eluent, eluent volume, elution volume, sample tray 112 position, waste liquid classification collection and corresponding column flow rate, and starts the process;

[0101] (2) Draining: The system is powered on, the pressurizing module (pressurizing device 160) is lifted, and the liquid in the separation column is drained into the waste liquid collection tank 174 and waits for activation;

[0102] (3) Activation of the extraction column tray A: The system automatically draws the corresponding activation solution (3M HNO3, i.e., 3 mol / L nitric acid solution) through the syringe pump 132 and adds the set activation solution to the eight columns on the extraction column tray A at the same time. At the same time, the waste liquid collection tank 174 at the bottom moves to the target waste liquid position to automatically collect the activation solution;

[0103] (4) Sealing and pressurizing the extraction column disk A: After the sample is loaded, the pressurizing device 160 moves to the top of the extraction column disk A to seal it and ventilate it to pressurize and accelerate activation;

[0104] (5) Activation of the extraction column disk B: At the same time, the system draws the corresponding activation liquid through the injection pump 132 and adds the set activation liquid to the 8 columns on the extraction column disk B at the same time. At the same time, the waste liquid collection tank 174 at the bottom moves to the target waste liquid position to automatically collect the activation liquid;

[0105] (6) Sealing and pressurizing the extraction column disk B: After the sample is loaded, the pressurizing device 160 moves to the top of the extraction column disk B to seal it and ventilate it to pressurize and accelerate activation;

[0106] (7) Loading the extraction column disk A: After activation, the pressurizing device 160 is removed, and the first robotic arm 120 carries the liquid adding assembly 130 to the clean gun tip box 118, automatically picks up the gun tip, and then transfers it to the sample disk 112, and simultaneously aspirates and transfers 8 samples to the top of the separation column for automatic loading;

[0107] (8) Sealing the extraction column disk A: the pressurizing device 160 moves to the top of the extraction column disk A to seal;

[0108] (9) Loading the extraction column disk B: After activation, the pressurizing device 160 is removed, and the first robotic arm 120 carries the liquid adding assembly 130 to the clean gun tip box 118, automatically picks up the gun tip, and then transfers it to the sample disk 112, and simultaneously aspirates and transfers 8 samples to the top of the separation column for automatic loading;

[0109] (10) Sealing the extraction column disk B: the pressurizing device 160 moves to the top of the extraction column disk B to seal;

[0110] (11) Discarding the tip: After the sample is loaded, the first robotic arm 120 carries the liquid adding assembly 130 and returns the tip to the waste tip box 119;

[0111] (12) Extraction column A elution and reception: According to the set process, after a certain period of time, the system automatically transfers the sample receiving tube to the bottom of the separation column, and the liquid adding component 130 adds eluent (3M HNO3) for elution, corresponding to receiving about 15 ml of sample solution;

[0112] (13) Extraction column disk B elution and reception: According to the set process, after a certain period of time, the system automatically transfers the sample receiving tube to the bottom of the separation column, and the liquid adding component 130 adds liquid for elution, corresponding to receiving about 15 ml of sample solution;

[0113] (14) Elution and waste discharge of extraction column disk A: The corresponding eluent is sucked by the injection pump 132, and the set eluent is added to the 8 columns on the extraction column disk A at the same time. At the same time, the waste liquid classification collection tray at the bottom moves to the target waste liquid position to automatically collect the waste liquid;

[0114] (15) Sealing of the extraction column disk A: After the elution is completed, the pressurizing device 160 moves to the top of the extraction column disk A for sealing;

[0115] (16) Elution and waste discharge of extraction column disk B: The corresponding eluent is sucked by the injection pump 132, and the set eluent is added to the 8 columns on the extraction column disk B at the same time. At the same time, the waste liquid classification collection tray at the bottom moves to the target waste liquid position to automatically collect the waste liquid;

[0116] (17) Sealing of the extraction column disk B: After the elution is completed, the pressurizing device 160 moves to the top of the extraction column disk B for sealing;

[0117] (18) End: After all processes are completed, the sealing cover 166 is pressed on the top of the column to keep the separation column moist, ensuring that the separation column is sealed and leak-proof, and the system enters the standby state.

[0118] In summary, the present invention has innovatively established an extraction and separation device 100 for automated separation of uranium matrix in fuel and material analysis, which has the following beneficial effects:

[0119] 1. The present invention provides an automatic extraction and separation device 100 for the automated separation of uranium matrices in fuel analysis, which is used to achieve the automated separation of uranium matrices in various fuel and material analyses, and can efficiently separate and extract impurity elements in the material matrix.

[0120] 2. The extraction and separation device 100 accurately adds activation liquid, rinsing liquid, and eluent based on the high-precision injection pump 132, and uses the pipette-type pipetting component 140 and the liquid adding module to fully transfer and load the sample solution, automatically pierce the gun tip and automatically remove the gun tip, and realize automatic completion of the entire process of automatic loading, rinsing, elution, receiving, volume setting, and waste liquid classification and collection.

[0121] 3. The extraction and separation device 100 includes a liquid adding component 130, a pipetting component 140, and two independent pressurizing devices 160, wherein the liquid adding component 130 performs the liquid adding and sample loading processes. The first robotic arm 120 automatically picks up the gun tip, and the syringe pump 132 ensures the accuracy of liquid aspiration, simulating the form of a pipette to fully transfer the sample, which can ensure that the sample is free of cross-contamination. The high-precision syringe pump 132 is used to activate, rinse, and elute the separation column; the pressurizing device 160 includes a sealing layer and an air circuit. The sealing layer is made of polyurethane material to ensure the sealing effect. The independent air circuit is used to pressurize and control the flow rate, which can seal and pressurize the extraction column disk 116.

[0122] 4. An automated separation method for uranium matrix in fuel and material analysis based on the automatic extraction and separation device 100 was established.

[0123] The extraction and separation device established by the present invention for the automated separation of uranium matrices in fuel and material analysis can be directly applied to the automated separation of uranium matrices in fuel and material analysis, realizing automated control of the sample separation process, freeing up manpower, improving efficiency, reducing environmental and human pollution, and improving safety.

[0124] In this application, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrally connected; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0125] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0126] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An extraction and separation device (100) for automated separation of uranium matrix in fuel and material analysis, characterized in that: include: A body (110), wherein a sample tray (112), a reagent bottle (114) and an extraction column tray (116) are provided on the body (110), and a plurality of separation columns are provided on the extraction column tray (116), wherein the separation columns are used for selective adsorption and separation of uranium matrix and impurity elements; A first mechanical arm (120), disposed on the body (110); a liquid adding component (130), arranged on the first robotic arm (120), the liquid adding component (130) being used to take liquid from the reagent bottle (114) and perform a liquid adding operation; a pipetting assembly (140), disposed on the first robotic arm (120), the pipetting assembly (140) being used to take samples from the sample tray (112) and perform a sample loading operation; A second mechanical arm (150), disposed on the body (110); a pressurizing device (160), provided on the second mechanical arm (150), the pressurizing device (160) being used to perform a sealing and pressurizing operation on the separation column; A receiving component (170) is disposed on the body (110), the receiving component (170) is movable relative to the body (110), and the receiving component (170) is used to collect sample solutions and waste liquids; The receiving assembly (170) includes a sample receiving tray (172) and a waste liquid collecting tank (174), and the extraction and separation device (100) further includes: a guide rail (180) disposed below the sample receiving tray (172) and the waste liquid collecting tank (174), the sample receiving tray (172) being movable along the guide rail (180) for receiving the sample solution, and the waste liquid collecting tank (174) being movable along the guide rail (180) for receiving the waste liquid; The pressurizing device (160) comprises: an air circuit, provided on the second mechanical arm (150), for adjusting the air pressure in the separation column; a sealing layer, provided on the air circuit, for forming a compression seal at the air circuit interface; and a sealing cover (166), provided on the end of the second mechanical arm (150), for sealing the outer opening of the separation column; The liquid adding component (130) includes: a plurality of injection pumps (132) provided on the first mechanical arm (120), the plurality of injection pumps (132) being used to take liquid from the reagent bottle (114) and add liquid to the separation column; the reagent bottle (114) stores an activation liquid, a washing liquid, and an eluent; the reagent bottle is integrated with a micro-refrigeration module; A pressure regulating structure is provided on the injection pump (132) and is used to control the liquid extraction speed and the liquid addition speed; the pressure regulating structure integrates a pressure sensor to monitor the pipeline resistance in real time and automatically adjust the pressurization parameters; A waste liquid bottle (192), the waste liquid bottle (192) comprising a first waste liquid bottle and a second waste liquid bottle, the first waste liquid bottle and the second waste liquid bottle being used to store different waste liquids; the first waste liquid bottle being used to store uranium-containing waste liquid, and the second waste liquid bottle being used to store non-uranium-containing waste liquid.

2. The extraction separation device (100) according to claim 1, characterized in that: The liquid adding component (130) further includes: A reagent pipeline group (136), wherein the reagent pipeline group (136) includes a plurality of pipelines, one end of each pipeline is connected to the injection pump (132), and each pipeline is used for adding a different reagent; The multi-way control valve (138) is connected to all pipelines of the reagent pipeline group (136) and realizes the selective circulation of different reagents by switching the valve position.

3. The extraction separation device (100) according to claim 1, characterized in that: The pipetting assembly (140) comprises: A plurality of samplers (142) are provided on the first robotic arm (120), and the plurality of samplers (142) can realize sampling and loading operations of a plurality of samples.

4. The extraction separation device (100) according to claim 1, characterized in that: The number of the second robotic arms (150) is at least two, and the at least two second robotic arms (150) are arranged opposite to each other; Each of the second mechanical arms (150) is provided with at least one of the pressurizing devices (160).

5. The extraction separation device (100) according to any one of claims 1 to 4, characterized in that: Also includes: A peristaltic pump (190) is provided on the body (110), and the peristaltic pump (190) is used to pump the waste liquid collected in the waste liquid collection tank (174) to the waste liquid bottle (192).

6. The extraction separation device (100) according to any one of claims 1 to 4, characterized in that: Also includes: A control system is connected to the first robotic arm (120), the liquid adding component (130), the pipetting component (140), the second robotic arm (150), the pressurizing device (160) and the receiving component (170), and the control system is capable of issuing control instructions to the first robotic arm (120), the liquid adding component (130), the pipetting component (140), the second robotic arm (150), the pressurizing device (160) and the receiving component (170).

7. The extraction separation device (100) according to any one of claims 1 to 4, characterized in that: The first robotic arm (120) and the second robotic arm (150) are two-axis robotic arms, and surfaces of the first robotic arm (120) and the second robotic arm (150) are coated with an anti-corrosion material layer.

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