Multi-module cooperative wet assay gold adding acid dissolution automatic device and method

Abstract

The application belongs to the technical field of wet assay, and provides a multi-module cooperative wet assay acid-dissolution automation device and method. The wet assay acid-dissolution automation device integrates a positive aqua regia real-time preparation pump group, a negative aqua regia real-time preparation pump group, a drop horizontal movement module and a cover opening module. The aqua regia real-time preparation, automatic cover opening, quantitative liquid addition and dynamic shaking are integrated in a single device, thereby solving the process fragmentation and cooperation failure caused by the traditional manual + multiple single machine mode.

Description

Technical Field

[0001] This invention belongs to the technical field of wet assay, and particularly relates to an automated device and method for acid dissolution in wet assay with multi-module collaboration. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Hydrometallurgical assays (or fire assay-hydrometallurgical combination method) are a key pretreatment technique for precious metal analysis. The core step, "acid dissolution," has long relied heavily on manual operation. A typical procedure includes: placing the sample in a reaction vessel; preparing highly corrosive and oxidizing reagents such as aqua regia or reverse aqua regia on-site; adding these reagents step-by-step and at set times according to a predetermined procedure; allowing the reaction to complete; then adding distilled water for dilution and rinsing the inner wall of the vessel to ensure complete dissolution and transfer of the reaction products.

[0004] However, the existing manual operation mode has the following drawbacks: (1) High operational safety risks and difficulty in standardizing the process. Operators need to frequently and directly handle hazardous chemicals such as concentrated hydrochloric acid, concentrated nitric acid, hydrofluoric acid, and perchloric acid, exposing them to significant risks of corrosion, poisoning, and chemical burns. In addition, manual shaking or stirring can easily cause liquid splashing, further exacerbating safety hazards. The entire process is fragmented and greatly affected by the operator's skill level and concentration. Significant human differences exist in reaction time, liquid addition sequence, and mixing uniformity, resulting in poor process reproducibility and making it difficult to achieve standardized and regulated operations.

[0005] (2) Low processing efficiency and high resource costs. Manual operation cannot achieve parallel processing of multiple samples, and each process is time-consuming, which becomes a bottleneck restricting high-throughput sample analysis. At the same time, the process is highly dependent on skilled technicians, resulting in high labor costs, and is not suitable for scenarios that require long-term or unattended operation.

[0006] (3) Existing technologies have proposed some single-step automated or semi-automated alternatives, such as using quantitative pumps or automatic liquid preparation units to replace manual preparation of aqua regia in order to improve the accuracy of the ratio; or using automatic shaking devices to replace manual mixing in order to make the reaction more complete and uniform.

[0007] However, these solutions only optimize isolated steps in the complete acid addition and dissolution process, failing to achieve full automation and integration from sampling, acid addition, reaction control to post-processing. In practical applications, this often results in a complex mode of "manual operation in collaboration with multiple independent devices." This mode not only fails to completely liberate personnel from hazardous environments but also introduces new operational complexities and risks of collaborative errors due to increased human-machine interfaces and fragmented operating procedures. More importantly, such decentralized systems typically lack unified process monitoring and fault-tolerant interlocking mechanisms. When local equipment malfunctions or human error occurs, the system cannot promptly and automatically execute safe shutdown or emergency procedures, potentially escalating the danger and causing more severe material losses or even personal injury.

[0008] Therefore, there is an urgent need in this field for a technical solution that can completely replace manual labor and achieve full automation, integration, and closed-loop intelligent control of the acid addition and sample dissolution process, so as to fundamentally solve problems such as operational safety, process standardization, processing efficiency, and system reliability. Summary of the Invention

[0009] To overcome the shortcomings of the prior art, the present invention provides an automated device and method for acid dissolution in wet assay with multi-module collaboration. The multi-module collaborative acid dissolution device realizes the integrated operation of a single unit in the acid dissolution process, thereby improving stability and repeatability.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides an automated device for acid dissolution of wet assay metals using a multi-module collaborative process, comprising: A two-tiered workbench; a daily nitric acid storage tank, a daily hydrochloric acid storage tank, and a distilled water storage tank are located on the lower tier of the workbench; The above-ground aqua regia pump set, reverse aqua regia pump set, drip transverse shift module and lid opening module are installed on the upper layer of the workbench. The control system is used to control the positive aqua regia preparation pump group and the negative aqua regia preparation pump group to draw acid solution into the corresponding preparation tank and mix it to form aqua regia after receiving the material loading signal. At the same time, it drives the lid opening module to move above the beaker to remove the beaker lid. After receiving the opening and lifting signal, the liquid dispensing horizontal movement module is controlled to move from the initial position to the liquid dispensing station. Then, the liquid dispensing pump group is controlled to draw a certain amount of aqua regia from the preparation tank and add it to the beaker. After the liquid addition is completed, the droplet horizontal movement module is controlled to return to the initial position, and the lid opening module is controlled to move the beaker lid back to its original position. After detecting that the lid has descended to the correct position and the droplet horizontal movement module is in the initial position, the vibration component is activated to shake the beaker, so that the sample to be tested and aqua regia are fully mixed and reacted. The steps of adding liquid, resetting, lidding, and shaking are repeated according to the preset logic until all acid additions are completed.

[0011] Secondly, the present invention provides an automated method for acid dissolution of wet assay metals using a multi-module collaborative approach, comprising: The control system is activated. Upon receiving the material loading signal, the metering pump is controlled to draw acid solution into the corresponding mixing tanks to form positive aqua regia and negative aqua regia. At the same time, the opening module is driven to move above the beaker to remove the beaker lid. After receiving the signal to open the lid and lift it to the position, the control unit moves the liquid dispensing horizontal movement module from the initial position to the liquid dispensing station. Then, the control unit draws a certain amount of aqua regia from the prepared tank and adds it to the beaker. After the liquid addition is completed, control the dripping horizontal movement module to return to the initial position, and control the lid opening module to move the beaker lid back to its original position; After detecting that the lid has descended to the correct position and the droplet transverse module is in its initial position, the vibration component is activated to shake the beaker, so that the sample to be tested is fully mixed and reacted with the aqua regia. Repeat the steps of adding liquid, resetting, capping, and shaking according to the preset logic until all acid additions are completed.

[0012] Thirdly, the present invention provides an electronic device including a memory and a processor, and computer instructions stored in the memory and running on the processor, wherein the computer instructions, when executed by the processor, perform the method described in the second aspect.

[0013] Fourthly, the present invention provides a computer-readable storage medium for storing computer instructions, which, when executed by a processor, perform the method described in the second aspect.

[0014] Fifthly, the present invention provides a computer program product, including a computer program that, when executed by a processor, performs the method described in the second aspect.

[0015] The above one or more technical solutions have the following beneficial effects: In this invention, the automated wet assay acid dissolution device integrates aqua regia preparation pump set, reverse aqua regia preparation pump set, droplet transverse module and cap opening module, integrating multiple steps such as aqua regia preparation, automatic cap opening, quantitative liquid addition and dynamic mixing into a single device, solving the problems of process fragmentation and coordination errors caused by the traditional manual + multiple single machine mode.

[0016] In this invention, by detecting the positioning signals of each module, such as the lid opening and lifting into position, or the liquid dripping and lateral movement into position, it is ensured that the next action is only performed under safe conditions, thus avoiding mechanical collisions and accidental leaks.

[0017] In this invention, the functions of fixing the beaker, horizontal movement, and shaking are integrated into the same dripping horizontal movement module, which reduces the equipment footprint and eliminates the need to move the beaker between different devices, thus reducing contamination and positioning errors. Through the cooperation of the drive component and the ground slide rail, the beaker can move back and forth precisely between the initial position and the dripping position, ensuring that the dripping port and the beaker mouth are accurately aligned and preventing acid spillage.

[0018] In this invention, the lid-opening module can be moved laterally after opening the lid, making room for the liquid-dispensing lateral movement module to enter and exit, thus enabling safe and coordinated operation of two independent motion modules within a limited space. The beaker lid is moved and replaced using a vertical lifting method with a lid plate fork, avoiding shaking or splashing during manual opening; and the beaker remains sealed during non-liquid addition phases, effectively suppressing acid mist emission and improving the laboratory environment.

[0019] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is a front view of the automated wet assay acid dissolution device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the ground-rail robot structure in an embodiment of the present invention; Figure 3 This is a top view of the automated wet assay acid dissolution device in an embodiment of the present invention; Figure 4 This is an isometric view of the automated wet assay acid dissolution device in an embodiment of the present invention; Figure 5 This is a control logic block diagram of the automated wet assay acid dissolution device in an embodiment of the present invention; Figure 6 This is a flowchart of the automated wet assay acid dissolution method in an embodiment of the present invention; 1. Aqua regia preparation tank; 2. Daily nitric acid pump; 3. Daily hydrochloric acid pump; 4. Daily distilled water pump; 5. Daily nitric acid storage tank; 6. Daily hydrochloric acid storage tank; 7. Daily distilled water storage tank; 8. Beaker module; 9. Lid opening module; 10. Drip lateral movement module; 11. Aqua regia preparation pump set; 12. Reverse aqua regia preparation tank; 13. Reverse aqua regia preparation pump set; 14. Ground slide rail; 15. Cup lid plate fork; 16. Lifting platform; 17. First lateral movement platform; 18. First rodless cylinder; 19. Accordion cover; 20. Shaking table; 21. Second lateral movement platform; 22. Second rodless cylinder; 23. Drip pump; 24. Workbench frame; 25. Drip platform; 26. Ground rail; 27. Robotic arm; 28. Two-claw fingers; 29. ​​Cable chain unit. Detailed Implementation

[0022] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations of the present invention.

[0024] Where there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0025] Example 1 This embodiment discloses an automated device for acid dissolution in wet assay with multi-module collaboration, comprising: A two-tiered workbench; a daily nitric acid storage tank, a daily hydrochloric acid storage tank, and a distilled water storage tank are located on the lower tier of the workbench; The above-ground aqua regia pump set, reverse aqua regia pump set, drip transverse shift module and lid opening module are installed on the upper layer of the workbench. The control system is used to control the positive aqua regia preparation pump group and the negative aqua regia preparation pump group to draw acid solution into the corresponding preparation tank and mix them to form aqua regia after receiving the material loading signal. At the same time, it drives the lid opening module to move above the beaker to remove the beaker lid. After receiving the opening and lifting signal, the liquid dispensing horizontal movement module is controlled to move from the initial position to the liquid dispensing station, and then the liquid dispensing pump group is controlled to draw a certain amount of aqua regia from the preparation tank and add it to the beaker. After the liquid addition is completed, the droplet horizontal movement module is controlled to return to the initial position, and the lid opening module is controlled to move the beaker lid back to its original position. After detecting that the lid has descended to the correct position and the droplet horizontal movement module is in the initial position, the vibration component is activated to shake the beaker, so that the sample to be tested and aqua regia are fully mixed and reacted. The steps of adding liquid, resetting, lidding, and shaking are repeated according to the preset logic until all acid additions are completed.

[0026] The following is a detailed description of the automated wet assay acid dissolution device with multi-module collaboration proposed in this embodiment: The system includes a two-tiered workbench. The lower tier houses a daily-use nitric acid storage tank 5, a daily-use hydrochloric acid storage tank 6, and a daily-use distilled water storage tank 7. Three transfer pumps are also located near the outer edge. The upper tier contains aqua regia preparation pump sets, anti-aqua regia preparation pump sets, a drip-shifting module, and a lid-opening module. The aqua regia preparation pump sets and anti-aqua regia preparation pump sets each include a daily-use nitric acid pump 2, a daily-use hydrochloric acid pump 3, and a daily-use distilled water pump 4, respectively. The aqua regia preparation pump sets are connected to the aqua regia preparation tanks, and the anti-aqua regia preparation pump sets are connected to the anti-aqua regia preparation tanks. Both sets are mounted on a raised platform.

[0027] The dripping transverse module includes a first support frame that cooperates with a ground slide rail, a first drive component disposed within the first support frame, a vibration component disposed on the first support frame, a beaker fixing bracket disposed on the vibration component, and a dripping pump assembly; the first drive component is used to drive the dripping transverse module to move from an initial position to a dripping station on the ground slide rail, or to move from a dripping station to the initial position.

[0028] Specifically, the first driving component is a second rodless cylinder 22 that can move linearly, and the vibration component is a shaker 20. The shaker 20 is equipped with a beaker holder with five fixed positions for placing beakers with lids. The entire dripping transverse module is located on the left side of the ground slide rail. The right side of the ground slide rail is the lid opening module.

[0029] The lid opening module includes a second drive assembly and a second support frame that cooperates with the ground slide rail. The second drive assembly is used to drive the lid opening module to move along the ground slide rail so that it can move from the standby position to directly above the beaker module. A lifting mechanism is connected to the second support frame to drive the lid plate fork to remove the beaker lid. The lifting mechanism is specifically a vertical motion cylinder.

[0030] Specifically, the bellows cover is mounted on the second support frame, and the second drive assembly is mounted inside the bellows cover. The second drive assembly is specifically the first rodless cylinder 22. The second support frame, which is in contact with the ground slide rail, is connected to a vertical motion cylinder, which is used to push the cup lid plate fork 15 above to move up and down. The entire workflow is controlled by a PLC + host computer, realizing closed-loop control of the entire process and acquisition of the operating status signals of each mechanism.

[0031] It also includes a ground-rail robot, which is connected to the control system. The ground-rail robot is used to move the beaker module to the loading position on the workbench and to move the beaker module to the next work station after the acid dissolution process is completed. The ground-rail robot includes a robotic arm 27 mounted on a ground rail 26. The end of the robotic arm 27 is equipped with two claw fingers 28. One end of a cable chain unit 29 is fixed to the base of the ground rail 26, and the other end moves along the ground rail 26 with the base of the robotic arm 27. The cable chain unit 29 is used to store, protect and guide the power line, signal line and air / liquid pipe of the robotic arm 27 as it moves along the ground rail 26.

[0032] This workbench adopts a control method of PLC + host computer working together. The host computer is used for setting process parameters, starting and stopping the process, displaying the running status, and recording process data. The PLC, as the core control unit, is equipped with a state machine process control unit, a module coordination and interlocking logic unit, a metering pump control unit, a motion control unit, and a safety interlock and abnormal handling unit. The PLC receives the position signals, status feedback signals, and safety signals of each actuator through the input interface, and performs real-time control of the cap opening module, the dripping transverse movement module, the shaker, and each metering pump group through the output interface, thereby realizing unified scheduling and closed-loop control of the entire acid addition and dissolution process.

[0033] The digital input terminals of the PLC are used to collect status information of various actuators and safety components, and mainly include the following fields: Material loading signal field: Used to receive the arrival confirmation signal after the ground rail robot places the beaker module on the worktable, as a trigger condition for starting the acid addition and dissolution process.

[0034] Opening and lateral movement signal field: Used to detect the status feedback signal after the opening module moves along the ground slide rail to the specified opening position.

[0035] The "Lid Opening and Lifting to Position Signal" field is used to detect whether the lifting mechanism of the lid opening module has raised the beaker lid to the predetermined height to confirm that the beaker is in the open state.

[0036] The dripping lateral movement positioning signal field is used to detect whether the dripping lateral movement module has moved to the dripping station, which is a prerequisite for allowing the acid dripping action to be performed.

[0037] The initial position signal field for droplet lateral movement is used to detect whether the droplet lateral movement module has returned to the initial safe position in order to avoid mechanical interference in subsequent actions.

[0038] Shaker Stop Status Signal Field: Used to confirm whether the shaker is in a stopped state, serving as an interlock condition that allows lateral movement or lid opening actions to be performed.

[0039] Emergency stop trigger signal field: Used to receive the trigger signal from the emergency stop button. When this signal is valid, the PLC immediately enters the safe stop state.

[0040] The digital output terminals of a PLC are used to start, stop, and control the direction of various actuators. They mainly include the following fields: Opening and lateral movement start control field: Used to control the start and stop of the opening module lateral movement drive mechanism, so that it moves along the ground slide rail to the designated work position.

[0041] The lid opening and lifting control field is used to control the lifting mechanism of the lid opening module to move upward, so as to lift the beaker lid.

[0042] The lid opening lifting and lowering control field is used to control the downward movement of the lid opening module lifting mechanism to achieve the placement and sealing of the beaker lid.

[0043] The droplet lateral movement start control field is used to control the lateral movement of the droplet lateral movement module, so that the shaker and beaker modules switch between the initial position and the droplet position.

[0044] Shaker start control field: Used to control the start-up and operation of the shaker actuator to carry out the shaking reaction after acid addition.

[0045] Shaking table stop control field: Used to control the shaking table actuator to stop running as a condition for entering the next process.

[0046] The analog or pulse output of a PLC is used for precise control of a fixed displacement pump and some motion actuators, and mainly includes the following fields: The metering control field for daily nitric acid pumps controls the running time or metering pulse count of the pump by outputting analog or pulse signals, thereby achieving quantitative delivery of daily nitric acid usage.

[0047] The metering control field for daily hydrochloric acid pumps is used to control the quantitative delivery process of the daily hydrochloric acid pumps, enabling the quantitative replenishment of hydrochloric acid from the main tank to the daily tanks.

[0048] Distilled water pump metering control field: Used to control the quantitative output of the distilled water pump to meet the needs of cleaning the inner wall of the beaker and diluting the solution.

[0049] The control field for the Zhengwangshui (a type of aqua regia) mixing pump is used to control the metering output of each pump in the Zhengwangshui mixing pump set, and to prepare the amount of Zhengwangshui needed for a single use according to the set ratio.

[0050] Anti-aqua regia preparation pump control field: Used to control the metering output of each pump in the anti-aqua regia preparation pump set to realize the on-site preparation of anti-aqua regia.

[0051] The metering control field for the drip pump group is used to control the metering output of multiple drip pumps, so that aqua regia, anti-aqua regia, or distilled water are added to the beaker in batches according to the set volume.

[0052] This embodiment integrates a multi-module collaborative automated acid dissolution workbench structure, comprising a positive aqua regia dispensing pump set, a negative aqua regia dispensing pump set, a dripping lateral movement module, and a cap-opening module, to achieve single-unit integrated operation of the acid dissolution process. Multiple originally independent metering pumps, shakers, lateral movement mechanisms, and cap-opening mechanisms are integrated into the same workbench frame, forming a compact, single-station automated acid dissolution system. This improves stability and repeatability.

[0053] This embodiment adopts an acid supply system with a three-level storage structure of "main tank - daily use tank - on-site preparation tank" and is deeply coupled with the automatic acid addition process to realize the graded isolation of hazardous chemicals and on-site preparation.

[0054] In this embodiment, the automated acid dissolution system architecture, which is centrally controlled by PLC, incorporates multiple modules into a unified control logic and safety interlocking system, ensuring the controllability and safety of the process. This provides a complete and reliable automated solution to address the long-standing problems in this field, such as high safety risks, low efficiency, and reliance on human experience for results.

[0055] In this embodiment, an automatic recording method for process parameters, achieved through collaboration between a PLC and a host computer, stores the acid addition time, volume, and shaking duration for each sample. This digital recording and traceability mechanism for the acid addition and dissolution process meets the needs of laboratory quality control and compliance auditing. The control system architecture can be expanded to integrate online sensors such as temperature and pH, providing an interface foundation for subsequent intelligent upgrades.

[0056] This embodiment of the device is applicable to programmable control platforms with different acid addition and dissolution process parameters, and has the ability to quickly switch processes. It is a flexible automated platform that can be adapted to different sample throughputs and reagent volumes by changing the metering pump range or control parameters. The fully automated operation mode reduces reliance on highly skilled operators, improving the standardization and consistency of laboratory operations. The fully automated acid addition and dissolution operation mode eliminates the need for human contact with hazardous chemicals throughout the entire process, achieving human-machine isolation from the hazardous environment. The control strategy of maintaining a sealed beaker during non-acid addition stages reduces acid mist emission and exposure to harmful gases.

[0057] Example 2 The purpose of this embodiment is to provide an automated method for acid dissolution of wet assay metals using a multi-module collaborative approach, including: The control system is activated. Upon receiving the material loading signal, the metering pump is controlled to draw acid solution into the corresponding mixing tanks to form aqua regia and anti-aqua regia. At the same time, the opening module is driven to move above the beaker to remove the beaker lid. After receiving the signal to open the lid and lift it to the position, the control unit moves the liquid dispensing horizontal movement module from the initial position to the liquid dispensing station. Then, the control unit draws a certain amount of aqua regia from the prepared tank and adds it to the beaker. After the liquid addition is completed, control the dripping horizontal movement module to return to the initial position, and control the lid opening module to move the beaker lid back to its original position; After detecting that the lid has descended to the correct position and the droplet transverse module is in its initial position, the vibration component is activated to shake the beaker, so that the sample to be tested is fully mixed and reacted with the aqua regia. Repeat the steps of adding liquid, resetting, capping, and shaking according to the preset logic until all acid additions are completed.

[0058] In this embodiment, at the start of operation, during the first loading, the daily usage tank draws the required amount of liquid for one day from the main tank via a metering pump, including nitric acid, hydrochloric acid, and distilled water. The ground-rail robot places the beaker assembly within the upper limit space of the loading position on the worktable, fixing the beaker's position above the shaker 20. Then, the second drive component drives the lid-opening module to move linearly along the track to the designated position. The lid plate fork, driven by a lifting mechanism, lifts the beaker lid from bottom to top. After lifting, the first drive component drives the dripping lateral movement module to move along the track to the designated dripping position. When the beaker reaches the loading position, the positive and negative aqua regia dispensing pumps begin dispensing the required single-use amount of positive and negative aqua regia. The positive and negative aqua regia are added in batches according to the specified amounts. After each addition, the first drive component drives the dripping transverse module to return to its initial position along the track. The lifting mechanism then drives the lid plate fork to place the lid back into the beaker and secure it. The shaker then begins to shake the mixture. After repeating the reaction multiple times, the first drive component drives the dripping transverse module back to the dripping position. The beaker wall is then cleaned with distilled water, and distilled water is added again to dilute the solution. Finally, the solution returns to its initial position via the linear movement of the first drive component. The lifting mechanism then drives the lid plate fork to descend, placing the beaker lid onto the beaker opening on the beaker rack. The system then awaits the next batch of material.

[0059] like Figure 4 As shown, an automated method for wet assay acid dissolution using a multi-module collaborative approach specifically includes the following steps: Step 1: When the workbench is turned on, start the entire workbench through the host computer. First, add the daily acid and distilled water. Control the daily nitric acid pump 2, daily hydrochloric acid pump 3, and daily distilled water pump 4 through the PLC quantitative pump control unit to pump the daily amount of solution into the daily nitric acid tank 5, daily hydrochloric acid tank 6, and daily distilled water tank 7, waiting for the subsequent preparation of positive and negative aqua regia.

[0060] Step 2: When the PLC module detects that the ground-rail robot has placed the sample into the beaker module 8, it simultaneously starts the aqua regia preparation process and the cap opening process. The quantitative pump control unit controls the positive aqua regia preparation pump group 11 and the negative aqua regia preparation pump group 13 to pump the solution from the daily use tank for preparation according to the ratio parameters transmitted from the host computer. The solution is then injected into the positive aqua regia preparation tank 1 and the negative aqua regia preparation tank 12 respectively, waiting to be added.

[0061] The first rodless cylinder 18 of the lid opening module is driven by the solenoid valve controlled by the motion control unit to move the first transverse stage 17 along the ground slide rail 14 to the designated position on the left, and controls the lifting motor to move the lifting platform 16 upward, which in turn moves the beaker lid upward through the lid plate fork 15, thus completing the separation of the lid.

[0062] Step 3: The PLC controls the droplet horizontal movement module to move to the left to reach the droplet position. The quantitative pump control unit controls multiple droplet pumps 23 to draw a quantitative amount of liquid from the aqua regia preparation tank or the reverse aqua regia preparation tank according to preset volume parameters, and adds it to the beaker in batches to achieve the acid dissolution of the sample.

[0063] Then, the PLC controls the dripping horizontal movement module to move to the right to the initial position, and controls the lifting mechanism in the lid opening module to drive the lifting platform 16 to descend, thereby driving the beaker lid on the lid plate fork 15 to descend, restoring the beaker lid to its original position and fixing it.

[0064] The PLC controls the shaker to unlock based on the signal from the logic interlock unit, and then the motion control unit controls the shaker 20 to start working, mixing the liquid. The above acid addition and mixing process is repeated according to the preset logic until the process is completed.

[0065] Step 4: The PLC quantitative pump control unit controls the aqua regia preparation pump group 11 to add an appropriate amount of distilled water to the aqua regia preparation tank 1. Then, five drip pumps 23 are controlled to draw distilled water from the aqua regia preparation tank 1 to clean the beaker walls and dilute the solution concentration. Finally, the second drive assembly drives the drip lateral movement module to move to the right to the initial position. The lifting platform 16 in the lid opening module lowers the beaker lid on the lid plate fork 15, restoring the lid to its original position and securing it. A signal is sent from the host computer to the ground-rail robot, which then moves the beaker module to the next workstation.

[0066] The PLC's safety interlock and anomaly handling unit continuously monitors emergency stop signals, access control status, and the arrival signals of each module. When an anomaly is detected, the PLC immediately stops the operation of the relevant actuators and sends an alarm message to the host computer, thereby ensuring the safe operation of the equipment. The above-mentioned aqua regia preparation process and lid opening action are executed in parallel under the coordinated control of the PLC to shorten the overall running time of a single process.

[0067] In this embodiment, the acid dissolution process is divided into multiple switchable states, and multi-module interlocking control logic is used to achieve safety constraints between opening the lid, dripping, shaking, and lateral movement operations. A parallel control strategy for the acid preparation and lid opening processes shortens the overall running time without interference. A closed-loop control method based on position detection and status feedback ensures that each actuator is in position before proceeding to the next process. A safety control mechanism that uniformly interrupts all actions under abnormal conditions prevents dangerous situations from escalating.

[0068] In this embodiment, a process control method that automatically performs capping and shaking actions after each acid addition transforms the reaction process from a "static reaction" to a "dynamic reaction." A precision liquid addition control method based on a metering pump programmatically controls the volume of acid added each time, reducing human error. This significantly improves reaction completeness and suppresses liquid splashing.

[0069] In further embodiments, the following is also provided: An electronic device includes a memory and a processor, as well as computer instructions stored in the memory and running on the processor. When executed by the processor, the computer instructions perform the method described in Embodiment 1. For brevity, further details are omitted here.

[0070] It should be understood that in this embodiment, the processor can be a central processing unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0071] Memory may include read-only memory and random access memory, and provides instructions and data to the processor. A portion of memory may also include non-volatile random access memory. For example, memory may also store information about the device type.

[0072] A computer-readable storage medium for storing computer instructions, which, when executed by a processor, perform the method described in Embodiment 1.

[0073] The method in Embodiment 1 can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor. The software modules can reside in readily available storage media in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, a detailed description is not provided here.

[0074] A computer program product includes a computer program that, when executed by a processor, implements the method described in Embodiment 1.

[0075] The present invention also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, which execute in a device on a target real or virtual processor to perform the processes / methods described above. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided among program modules as needed. The machine-executable instructions for the program modules can execute within a local or distributed device. In a distributed device, the program modules can reside in both local and remote storage media.

[0076] The computer program code used to implement the methods of the present invention may be written in one or more programming languages. This computer program code may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the computer or other programmable data processing device, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a computer, partially on a computer, as a stand-alone software package, partially on a computer and partially on a remote computer, or entirely on a remote computer or server.

[0077] In the context of this invention, computer program code or related data may be carried by any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and the like. Examples of signals may include electrical, optical, radio, sound, or other forms of propagation signals, such as carrier waves, infrared signals, etc.

[0078] Those skilled in the art will recognize that the units and algorithm steps described in conjunction with the embodiments herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0079] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. An automated device for wet assay acid dissolution with multi-module collaboration, characterized in that, include: A two-tiered workbench; Daily nitric acid storage tank, daily hydrochloric acid storage tank, and distilled water storage tank are located on the lower layer of the workbench; The above-ground aqua regia pump set, reverse aqua regia pump set, drip transverse shift module and lid opening module are installed on the upper layer of the workbench. The control system is used to control the positive aqua regia preparation pump group and the negative aqua regia preparation pump group to draw acid solution into the corresponding preparation tank and mix them to form aqua regia after receiving the material loading signal. At the same time, it drives the lid opening module to move above the beaker to remove the beaker lid. After receiving the opening and lifting signal, the liquid dispensing horizontal movement module is controlled to move from the initial position to the liquid dispensing station. Then, the liquid dispensing pump group is controlled to draw a certain amount of aqua regia from the preparation tank and add it to the beaker. After the liquid addition is completed, the droplet horizontal movement module is controlled to return to the initial position, and the lid opening module is controlled to move the beaker lid back to its original position. After detecting that the lid has descended to the correct position and the droplet horizontal movement module is in the initial position, the vibration component is activated to shake the beaker, so that the sample to be tested and aqua regia are fully mixed and reacted. The steps of adding liquid, resetting, lidding, and shaking are repeated according to the preset logic until all acid additions are completed.

2. The automated wet assay acid dissolution device with multi-module collaboration as described in claim 1, characterized in that, The dripping transverse module includes a first support frame that cooperates with a ground slide rail, a first drive component disposed within the first support frame, a vibration component disposed on the first support frame, a beaker fixing frame disposed on the vibration component, and a dripping pump assembly; the first drive component is used to drive the dripping transverse module to move from an initial position to a dripping station on the ground slide rail, or to move from a dripping station to an initial position.

3. The automated wet assay acid dissolution device with multi-module collaboration as described in claim 1, characterized in that, The lid opening module includes a second drive component and a second support frame that cooperates with the ground slide rail; the second drive component is used to drive the lid opening module to move along the ground slide rail so as to move from the standby position to directly above the beaker module; A vertical motion cylinder is connected to the second support frame. The vertical motion cylinder is used to drive the lid plate fork to remove the beaker lid.

4. The automated wet assay acid dissolution device with multi-module collaboration as described in claim 1, characterized in that, The aqua regia fresh-mixing pump set and the aqua regia reverse-mixing pump set respectively include a daily nitric acid pump, a daily hydrochloric acid pump, and a daily distilled water pump; the aqua regia fresh-mixing pump set is connected to the aqua regia fresh-mixing tank, and the aqua regia reverse-mixing pump set is connected to the aqua regia fresh-mixing tank.

5. The automated wet assay acid dissolution device with multi-module collaboration as described in claim 1, characterized in that, It also includes a ground-rail robot, which is communicatively connected to the control system. The ground-rail robot is used to transfer the beaker module to the loading position of the workbench and to transfer the beaker module to the next work station after the acid dissolution process is completed.

6. An automated method for wet assay acid dissolution using multi-module collaboration, characterized in that, include: The control system is activated. Upon receiving the material loading signal, the metering pump is controlled to draw acid solution into the corresponding mixing tanks to form positive aqua regia and negative aqua regia. At the same time, the opening module is driven to move above the beaker to remove the beaker lid. After receiving the signal to open the lid and lift it to the position, the control unit moves the liquid dispensing horizontal movement module from the initial position to the liquid dispensing station. Then, the control unit draws a certain amount of aqua regia from the prepared tank and adds it to the beaker. After the liquid addition is completed, control the dripping horizontal movement module to return to the initial position, and control the lid opening module to move the beaker lid back to its original position; After detecting that the lid has descended to the correct position and the droplet transverse module is in its initial position, the vibration component is activated to shake the beaker, so that the sample to be tested is fully mixed and reacted with the aqua regia. Repeat the steps of adding liquid, resetting, capping, and shaking according to the preset logic until all acid additions are completed.

7. The automated method for acid dissolution of wet assay metals using multi-module collaboration as described in claim 6, characterized in that, Also includes: Control the aqua regia preparation pump group to add distilled water to the aqua regia preparation tank, then control the drip pump group to draw distilled water to rinse the inner wall of the beaker, and add distilled water to dilute the solution; After rinsing and dilution are completed, the droplet lateral movement module is controlled to return to its initial position, and the lid opening module is controlled to reset and fix the beaker lid; then the ground rail robot is controlled to move the beaker module to the next station.

8. An electronic device, characterized in that, It includes a memory and a processor, as well as computer instructions stored in the memory and running on the processor, which, when executed by the processor, perform the method according to any one of claims 6-7.

9. A computer-readable storage medium, characterized in that, Used to store computer instructions, which, when executed by a processor, perform the method described in any one of claims 6-7.

10. A computer program product, characterized in that, Includes a computer program, which, when executed by a processor, implements the method described in any one of claims 6-7.

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