An automated sample preparation system and its preparation process for aluminum electrolyte testing

Abstract

This invention relates to an automated sample preparation system and process for aluminum electrolyte testing in the field of sample preparation and testing technology for the aluminum industry. The system includes an equipment cabinet, a loading / unloading tray assembly, a loading / unloading robot, a sorting robot, a grinding system, a tilting and unloading system, a pressing system, a conveying system, a control and management system, a cleaning and drying system, and a dust removal system. Except for manual loading and unloading, all other sample preparation steps are automated, and data management is intelligent. It offers advantages such as safety, high efficiency, low labor costs, improved working environment for workers, stable sample quality, high testing efficiency, and a high degree of automation. It achieves a high degree of hardware and software integration, is simple to operate, and has stable performance. It can automatically read, record, store, share, statistically analyze, and process data. It occupies a small space and can process samples in batches within a closed space, which helps to shorten the sample preparation time for a single sample and ensure the stability of sample quality.

Description

Technical Field

[0001] This invention belongs to the field of sample preparation and testing technology in the aluminum industry. Specifically, it relates to an automated sample preparation system and its sample preparation process for aluminum electrolyte testing. Background Technology

[0002] Electrolyte testing and sample preparation are crucial for aluminum electrolysis enterprises to improve production, efficiency, and quality. For a long time, electrolyte sample preparation has been done manually, resulting in low efficiency and high labor intensity. Taking a 400,000-ton aluminum electrolysis plant as an example, currently, manual sample preparation only allows for the testing of one electrolyte sample / cell every 3-4 days. This cannot promptly reflect the physicochemical changes of materials and components within 72-96 hours, causing significant delays in the control of molecular ratios and quality in electrolysis production, leading to unstable production, fluctuations in output and quality, and low production efficiency. Furthermore, the open working environment during sample preparation poses safety and environmental hazards due to dust pollution and worker safety issues. Summary of the Invention

[0003] The purpose of this invention is to provide an automated sample preparation system and process for aluminum electrolyte testing to solve the above-mentioned technical problems.

[0004] Based on one aspect of the present invention, the following technical solution is adopted:

[0005] An automated sample preparation system for aluminum electrolyte testing includes an equipment cabinet, a loading / unloading tray assembly, a loading / unloading robot, a sorting robot, a conveying system, a grinding system, a tipping and unloading system, a pressing system, a cleaning and drying system, a dust removal system, and a control and management system.

[0006] The loading / unloading tray assembly is used for loading and unloading raw materials and finished products for aluminum electrolyte testing samples;

[0007] The loading and unloading robot is used to add the raw materials of aluminum electrolyte testing samples to the grinding system and to pick up the finished products when the pressing system discharges.

[0008] The grinding system includes a grinding machine body and a grinding assembly, used to grind the raw materials of aluminum electrolyte test samples into fine powder. The grinding assembly includes a grinding cover, a grinding block and a grinding jar.

[0009] The sorting robot is used to pick up and place the grinding components between the grinding machine body, the pressing system, the cleaning and drying system, and the tipping and unloading system.

[0010] The tipping and pouring system is used to pour the fine powder prepared in the grinding component into the pressing system;

[0011] The conveying system includes a lifting cylinder, a position sensor, a cylinder clamping assembly, and a belt conveyor, used to realize the assembly and transportation of the grinding sample assembly;

[0012] The sample pressing system is used to press fine powder into a preliminary sample for aluminum electrolyte testing.

[0013] The equipment cabinet is used to integrate the loading / unloading tray assembly, loading and unloading robot, sorting robot, conveying system, grinding system, tilting and unloading system, pressing system, cleaning and drying system, dust removal system and control and management system into a machine tool integrated structure, and to provide a closed dust removal space for the preparation of aluminum electrolyte test samples;

[0014] The cleaning and drying system includes a high-speed jet flushing system, an air curtain, and a drying device, which are used to flush and dry the used grinding jars to prevent contamination of subsequent electrolyte sample preparation when the grinding jars are reused.

[0015] The dust removal system is used to perform negative pressure dust removal in the enclosed dust removal space inside the equipment cabinet;

[0016] The control and management system is used to control the loading / unloading tray assembly, loading and unloading robot, sorting robot, conveying system, grinding system, tipping and unloading system, pressing system, cleaning and drying system and dust removal system to start, stop and operate according to predetermined working conditions.

[0017] Preferably, the loading / unloading tray assembly includes a loading tray and an unloading tray, both of which are equipped with position sensors, and the loading tray and unloading tray are respectively matched with the raw material quantity and finished product quantity of more than 50 aluminum electrolytic testing samples.

[0018] Preferably, the grinding system is used to process the raw materials of aluminum electrolyte testing samples into fine powder with a particle size ≥80 mesh. The grinding machine body adopts a ball mill mechanism and is connected to the equipment cabinet with a separate anti-vibration base, so that the vibration will not be transmitted to the equipment cabinet. It is also equipped with an automatically opening anti-slip and flip-over protective cover. The grinding tank is used to hold the grinding blocks and the raw materials of aluminum electrolyte testing samples. The grinding cover is detachably installed on the grinding tank.

[0019] Preferably, the belt conveyor is provided with a grinding tank station, a grinding block station and a grinding cover station above it, and each station is equipped with a position sensor. The cylinder clamping assembly includes a lifting cylinder and a clamping cylinder configured at each station for lifting and clamping the grinding assembly.

[0020] Preferably, the control and management system includes a host computer, a slave computer, and chemical testing equipment, and has full life-cycle management functions for the sample preparation process. The host computer sets the processing parameters of the automated aluminum electrolyte chemical testing sample preparation system, displays the testing, alarm, and process information of the automated aluminum electrolyte chemical testing sample preparation system in real time, and can communicate with third-party software via an interface. The slave computer operates according to a predetermined process flow and work rhythm, monitors the operation information and process execution status of the automated aluminum electrolyte chemical testing sample preparation system in real time, and sends this information to the host computer. The slave computer can also control the automated aluminum electrolyte chemical testing sample preparation system to automatically stop in an emergency and send fault information to the host computer for storage and analysis. The host computer can receive and send production status information data from remote production units, perform sample preparation planning, sample tracking, sample preparation process monitoring, equipment operation status monitoring, quality recording, test data statistics, and sample traceability management, and automatically acquire sample preparation data and analyze quality documents.

[0021] Preferably, the high-speed jet rinsing device is used to rinse the used grinding sample assembly with a high-speed jet, the air curtain is used to blow away large water droplets on the cleaned grinding sample assembly, the drying device uses high-temperature and high-pressure air to dry the grinding sample assembly, and the production cycle of the cleaning and drying system is ≤90s / piece.

[0022] Preferably, the automated sample preparation system for aluminum electrolyte testing achieves a single loading / unloading of ≥50 aluminum electrolyte samples, a single sample preparation time of ≤150s, a single grinding tank cleaning and drying production cycle of ≤90s, and an electrolyte particle size of ≥80 mesh (discharge). The equipment cabinet has a dustproof rating of IP3 to IP5, noise control at level III, and the equipment cabinet is equipped with protective doors for convenient loading and unloading of raw materials and finished products for aluminum electrolyte testing. The dust removal system is equipped with a negative pressure dust collector.

[0023] Preferably, the overturning and pouring system includes a overturning device, a pushing device, a hopper, and a pressing ring. The overturning device is used to overturn the grinding tank by 180° so that the electrolyte ground into fine powder in the grinding tank is poured into the pressing ring through the hopper. The pushing device is used to push the pressing ring into the pressing system.

[0024] Preferably, the sample pressing system includes a sample pressing device, a lifting device, a sample pressing ring placement tray, and a coding device. The lifting device is used to drive the sample pressing ring placement tray to move upward. When the fine powder in the sample pressing ring contacts the bottom of the sample pressing device, the pressure begins to increase. After reaching the set working pressure and maintaining it for a set working time, the fine powder in the sample pressing ring can be prepared into a preliminary sample for aluminum electrolyte testing. After the lifting device resets and drives the sample pressing tray to move downward, the preliminary sample is picked up by a sorting robot and written with a code by the coding device. Then, it is picked up by a loading and unloading robot and placed into a material receiving tray.

[0025] Based on another aspect of the present invention, the present invention also provides an automated sample preparation process for aluminum electrolyte testing, comprising the following steps:

[0026] (1) Manually position the loading tray and unloading tray, and close the protective cover door;

[0027] (2) The grinding sample jar is conveyed to the loading position by the conveying system. The loading and unloading robot pours the raw material of the aluminum electrolyte test sample in the material cup of the loading tray into the grinding sample jar. After the grinding sample block is placed in the grinding sample jar, the grinding sample cover is closed. The sorting robot grabs the grinding sample jar onto the grinding machine body and grinds the sample according to the instructions of the control and management system.

[0028] (3) After the grinding is completed, the sorting robot grabs the grinding cover and grinding block to the cleaning and drying system for cleaning and drying, and clamps the grinding tank to the tipping and pouring system. The tipping and pouring system pours the fine powder in the grinding tank into the pressing ring, and pushes the pressing ring into the pressing system. The pressing is completed in the pressing system to obtain the initial product. At the same time, the sorting robot grabs the grinding tank after the fine powder has been poured out to the cleaning and drying system for cleaning and drying.

[0029] (4) The initial product is picked up by the sorting robot and placed on the inkjet printer. The inkjet printer prints the initial product according to the coding rules to obtain a sample.

[0030] (5) The loading and unloading robot picks up the sample piece and puts it into the material tray, thereby completing the sample preparation for aluminum electrolyte testing.

[0031] The automated sample preparation process for aluminum electrolyte testing can achieve ≥50 aluminum electrolyte samples loaded / unloaded in a single run, with a single sample preparation time of ≤150s, a single grinding tank cleaning and drying cycle of ≤90s, and an electrolyte particle size of ≥80 mesh (discharge). The equipment cabinet has a dustproof rating of IP3 to IP5 and noise control at level III.

[0032] This invention also includes other equipment or components that enable the automated sample preparation system for aluminum electrolyte testing to function properly. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not specifically defined in this invention employ conventional techniques in the art. For example, a high-speed jet rinsing device includes a high-pressure water pump, a nozzle, and a water supply pipeline; an air curtain includes a fan and a distribution duct; a drying device includes a compressed air pipeline and an electric heater located within the compressed air pipeline; a flipping device includes a flipping cylinder and flipping grippers; a pushing device includes a pushing cylinder and a pushing plate; a sample pressing device includes a pressure plate matching the sample pressing ring; a lifting device includes a lifting cylinder and a top plate; and a coding device uses a coding machine. Those skilled in the art can select the appropriate model and installation method of the device and component according to actual usage requirements, and clearly understand how to install and control them. These will not be described in detail here.

[0033] The beneficial effects of this invention are that it is used for the preparation and testing of electrolytes in the electrolytic aluminum industry. After the overall system is integrated, except for manual loading and unloading, all other sample preparation and distribution actions are automated, data information management is intelligent, and wireless and wired communication interfaces are configured to realize data request and transmission functions with the front-end automatic sampling machine and the back-end data processing system, realizing one-click operation. This invention relates to sample preparation for electrolytes in the electrolytic aluminum industry. It offers advantages such as safety, high efficiency, low labor costs, improved working environment, inherent safety, stable sample quality, high testing efficiency, and high automation. It achieves a high degree of hardware and software integration, is simple to operate, has stable performance, high production efficiency, and is safe and reliable. It features cleaning, drying, and environmental dust removal functions, and can automatically read, record, store, share, statistically analyze, and process data. It occupies a small space and can process samples in batches within a closed space. The production process includes automatic dust collection, cleaning, drying, early warning processing, and interactive one-button operation, which helps shorten the sample preparation time per piece. It can process ≥50 samples in a single batch within a closed space, with a sample preparation time of ≤150 seconds per piece, while ensuring stable sample quality. Attached Figure Description

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is an overall structural layout diagram of the present invention in an embodiment.

[0036] Figure 2 This is an external structural diagram of the present invention in an embodiment.

[0037] Figure 3 This is a process flow diagram of the present invention in the embodiments.

[0038] Figure 4 This is the control logic diagram of the present invention in the embodiment.

[0039] In the diagram: 1-Top / Top material tray assembly, 2-Loading and unloading robot, 3-Sorting robot, 4-Conveying system, 5-Grinding system, 6-Tilting and unloading system, 7-Pressure system, 8-Control and management system, 9-Cleaning and drying system, 11-Dust removal system, 12-Equipment cabinet. Detailed Implementation

[0040] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely illustrative and is not intended to limit the scope of the invention. Any modifications, equivalent substitutions, or improvements made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the scope of protection of the present invention.

[0041] Example 1

[0042] Please refer to Figures 1-4 The present invention provides an automated sample preparation system for aluminum electrolyte testing, comprising an equipment cabinet 12, a loading / unloading tray assembly 1, a loading / unloading robot 2, a sorting robot 3, a conveying system 4, a grinding system 5, a turning and unloading system 6, a pressing system 7, a control and management system 8, a cleaning and drying system 9, and a dust removal system 11.

[0043] The loading / unloading tray assembly 1 is used for loading and unloading raw materials and finished products for aluminum electrolyte testing samples;

[0044] The loading and unloading robot 2 is used to add the raw materials of aluminum electrolyte testing samples to the grinding system 5, and to pick up the finished products when the pressing system 7 discharges.

[0045] The grinding system 5 includes a grinding machine body and a grinding assembly, used to grind the raw materials of aluminum electrolyte test samples into fine powder. The grinding assembly includes a grinding cover, a grinding block and a grinding tank.

[0046] The sorting robot 3 is used to pick up and place the grinding components between the grinding machine body, the pressing system 7, the cleaning and drying system 9 and the flipping and unloading system 6;

[0047] The tipping and pouring system 6 is used to pour the fine powder prepared in the grinding component into the pressing system 7;

[0048] The conveying system 4 includes a lifting cylinder, a position sensor, a cylinder clamping assembly, and a belt conveyor, which are used to realize the assembly and transportation of the grinding sample assembly;

[0049] The sample pressing system 7 is used to press fine powder into a preliminary sample for aluminum electrolyte testing.

[0050] The equipment cabinet 12 is used to integrate the loading / unloading tray assembly 1, loading and unloading robot 2, sorting robot 3, conveying system 4, grinding system 5, turning and pouring system 6, pressing system 7, control and management system 8, cleaning and drying system 9 and dust removal system 11 into one unit, and to provide a closed dust removal space for the preparation of aluminum electrolyte test samples.

[0051] The cleaning and drying system 9 includes a high-speed jet flushing system, an air curtain, and a drying device, which are used to flush and dry the used grinding jars to prevent contamination of subsequent electrolyte sample preparation when the grinding jars are reused.

[0052] The dust removal system 11 is used to perform negative pressure dust removal in the enclosed dust removal space inside the equipment cabinet 12;

[0053] The control and management system 8 is used to control the loading / unloading tray assembly 1, loading and unloading robot 2, sorting robot 3, conveying system 4, grinding system 5, tipping and unloading system 6, pressing system 7, cleaning and drying system 9 and dust removal system 11 to start, stop and operate according to predetermined working conditions.

[0054] As a further improvement to the above embodiments, the loading / unloading tray assembly 1 includes a loading tray and an unloading tray, both of which are equipped with position sensors, and the loading tray and unloading tray are respectively matched with the raw material quantity and finished product quantity of more than 50 aluminum electrolysis test samples.

[0055] As a further improvement to the above embodiments, the grinding system 5 is used to process the raw materials of aluminum electrolyte testing samples into fine powder with a particle size ≥ 80 mesh. The grinding machine body adopts a ball mill mechanism and is connected to the equipment cabinet 12 with a separate anti-vibration base, so that vibration is not transmitted to the equipment cabinet 12. It is also equipped with an automatically opening anti-slip and flip-over protective cover. The grinding tank is used to hold the grinding blocks and the raw materials of aluminum electrolyte testing samples. The grinding cover is detachably installed on the grinding tank.

[0056] As a further improvement to the above embodiment, a grinding tank station, a grinding block station, and a grinding cover station are respectively arranged above the belt conveyor. Each station is equipped with a position sensor. The cylinder clamping assembly includes a lifting cylinder and a clamping cylinder arranged at each station for lifting and clamping the grinding assembly. As a further improvement to the above embodiment, the control management system 8 includes a host computer, a slave computer, and a chemical testing device (not shown in the figure), and has a full life cycle management function for the sample preparation process. This control and management system 8 uses a PLC controller as its hardware foundation and software programming as its medium to control the working process and logic of the automated sample preparation system for aluminum electrolyte testing. It sets system parameters and monitors test, alarm, and process information, and can communicate with third-party software via an interface. The lower-level machine operates according to a predetermined process flow and work rhythm, monitoring the operation information and process execution status of the automated sample preparation system for aluminum electrolyte testing in real time and sending this information to the upper-level machine. The lower-level machine can also control the automated sample preparation system to automatically stop in an emergency and send fault information to the upper-level machine for storage and analysis. The upper-level machine can receive and send production status information data from remote production units, perform sample preparation planning, sample tracking, sample preparation process monitoring, equipment operation status monitoring, quality recording, test data statistics, sample traceability, and automatically acquire sample preparation data and analyze quality documents.

[0057] As a further improvement to the above embodiment, the high-speed jet rinsing device includes a high-pressure water pump, a nozzle, and a water supply pipeline, used to perform high-speed jet rinsing on the used grinding sample components. The air curtain includes a fan and a distribution duct, used to blow away large water droplets on the cleaned grinding sample components. The drying device includes a compressed air pipeline and an electric heater installed in the compressed air pipeline, using high-temperature and high-pressure air to dry the grinding sample components. The production cycle of the cleaning and drying system is ≤90s / piece.

[0058] As a further improvement to the above embodiments, the automated sample preparation system for aluminum electrolyte testing achieves a single loading / unloading of ≥50 aluminum electrolyte samples, a single sample preparation time of ≤150s, a single grinding tank cleaning and drying production cycle of ≤90s, and an electrolyte particle size of ≥80 mesh (discharge). The equipment cabinet 12 has a dustproof rating of IP5 and noise control at level III. The equipment cabinet 12 is equipped with a protective cover door for convenient loading and unloading of raw materials and finished products for aluminum electrolyte testing. The dust removal system 11 is equipped with a negative pressure dust collector.

[0059] As a further improvement to the above embodiment, the overturning and pouring system 6 includes a overturning device, a pushing device, a hopper, and a pressing ring. The overturning device includes a overturning cylinder for overturning the grinding tank by 180° so that the electrolyte ground into fine powder in the grinding tank is poured into the pressing ring through the hopper. The pushing device includes a pushing cylinder for pushing the pressing ring into the pressing system.

[0060] As a further improvement to the above embodiments, the sample pressing system 7 includes a sample pressing device, a lifting device, a sample pressing ring placement plate, and a coding device. The lifting device includes a lifting cylinder for driving the sample pressing ring placement plate to move upward. The sample pressing device includes a pressure plate. When the fine powder in the sample pressing ring contacts the bottom of the pressure plate of the sample pressing device, the pressure begins to increase. After reaching the set working pressure and maintaining it for a period of time, the fine powder in the sample pressing ring can be prepared into a preliminary sample for aluminum electrolyte testing. After the lifting device resets and drives the sample pressing placement plate to move downward, the sorting robot places the preliminary sample under the coding device to write the code and form the finished product.

[0061] This invention is used for sample preparation and testing of electrolytes in the electrolytic aluminum industry. It has the advantages of safety, high efficiency, low labor costs, improved working environment for workers, inherent safety, stable sample quality, high testing efficiency, and high degree of automation. It can achieve a high degree of integration of hardware and software, is simple to operate, has stable performance, high production efficiency, and is safe and reliable. It has cleaning, drying and environmental dust removal functions, and can realize automatic data reading, recording, storage, sharing, statistics and processing functions. It occupies a small space and can process ≥50 samples in a single batch in a closed space, with a single sample preparation time ≤150 seconds, and the sample quality is stable.

[0062] Example 2

[0063] Please refer to Figures 1-4 The present invention provides an automated sample preparation process for aluminum electrolyte testing, comprising the following steps:

[0064] (1) Manually position the loading tray and unloading tray, and close the protective cover door;

[0065] (2) The grinding sample jar is conveyed to the loading position by the conveying system 4. The loading and unloading robot 2 pours the raw material of the aluminum electrolyte test sample in the material cup of the loading tray into the grinding sample jar. After the grinding sample block is placed in the grinding sample jar, the grinding sample cover is closed. The sorting robot 3 grabs the grinding sample jar onto the grinding machine body and performs grinding according to the instructions of the control management system 8.

[0066] (3) After the grinding is completed, the sorting robot 3 grabs the grinding cover and grinding block to the cleaning and drying system 9 for cleaning and drying, and clamps the grinding tank to the flipping and pouring system 6. The fine powder in the grinding tank is poured into the pressing ring through the flipping and pouring system 6, and the pressing ring is pushed into the pressing system 7. The pressing is completed in the pressing system 7 to obtain the initial product. At the same time, the sorting robot 3 also grabs the grinding tank after the fine powder has been poured to the cleaning and drying system 9 for cleaning and drying.

[0067] (4) The initial product is picked up by the sorting robot 3 and placed on the inkjet printer. The inkjet printer prints the initial product according to the coding rules to obtain a sample.

[0068] (5) The loading and unloading robot 2 picks up the sample piece into the material tray to obtain the finished product; thus completing the sample preparation for aluminum electrolyteization test.

[0069] The automated sample preparation process for aluminum electrolyte testing can achieve ≥50 aluminum electrolyte samples loaded / unloaded in a single run, with a single sample preparation time of ≤150s, a single grinding tank cleaning and drying cycle of ≤90s, and an electrolyte particle size of ≥80 mesh (discharge). The equipment cabinet has a dustproof rating of IP3 to IP5 and noise control at level III.

[0070] After the sample preparation is completed, the sorting robot 3 can grab the finished product to the testing and analysis instrument for testing. After the testing is completed, the sorting robot 3 will grab the finished product to the temporary storage table. The testing and analysis instrument will store, analyze and display the tested data. The feeding tray and the unloading tray can hold more than 50 aluminum electrolytic testing samples at a time, corresponding to the amount of raw material and finished product.

[0071] In this embodiment, the upper-level computer is an industrial all-in-one machine, and the lower-level computer is a PLC control system. The PLC control system is responsible for controlling the entire process flow, controlling each device in the system to complete the corresponding process through I / O connections and communication, monitoring the operation information of each device and the execution status of the process in real time, and sending the data to the industrial all-in-one machine. When a device in the system malfunctions, it automatically performs an emergency stop and sends the fault information to the industrial all-in-one machine for storage, facilitating later maintenance. The management system performs tasks such as production scheduling / quality and recording / production history, automatic recording / test data analysis, storage, and uploading in the entire automated sample preparation system for aluminum electrolyte testing. It is responsible for entering the identity of the test sample and issuing it to the PLC control system; tracking the product flow during production; and automatically acquiring and analyzing quality documents when the workpiece measurement is completed and it is taken off the line, forming quality data, and storing and recording it in the quality database.

[0072] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An automated sample preparation system for aluminum electrolyte testing, comprising an equipment cabinet, characterized in that: It also includes loading / unloading trays, loading and unloading robots, sorting robots, conveying systems, grinding systems, tipping and unloading systems, pressing systems, cleaning and drying systems, dust removal systems, and control and management systems; The loading / unloading tray assembly is used for loading and unloading raw materials and finished products of aluminum electrolysis test samples. The loading / unloading tray assembly includes a loading tray and an unloading tray, both of which are equipped with position sensors. The loading tray and the unloading tray are respectively matched with the amount of raw materials and finished products of more than 50 aluminum electrolysis test samples. The loading and unloading robot is used to add the raw materials of aluminum electrolyte testing samples to the grinding system and to pick up the finished products when the pressing system discharges. The grinding system includes a grinding machine body and a grinding assembly, used to grind the raw materials of aluminum electrolyte test samples into fine powder. The grinding assembly includes a grinding cover, a grinding block and a grinding jar. The grinding machine body adopts a ball mill mechanism and is connected to the equipment cabinet with a separate anti-vibration base, so that vibration is not transmitted to the equipment cabinet. The sorting robot is used to pick up and place the grinding components between the grinding machine body, the pressing system, the cleaning and drying system, and the tipping and unloading system. The conveying system includes a lifting cylinder, a position sensor, a cylinder clamping assembly, and a belt conveyor, used to assemble and transport the grinding sample assembly; the belt conveyor is equipped with a grinding sample tank station, a grinding sample block station, and a grinding sample cover station, each station being equipped with a position sensor; the cylinder clamping assembly includes a lifting cylinder and a clamping cylinder configured at each station for lifting and clamping the grinding sample assembly; The tipping and pouring system is used to pour the fine powder prepared in the grinding component into the pressing system; The sample pressing system is used to press fine powder into a preliminary sample for aluminum electrolyte testing. The equipment cabinet integrates the loading / unloading tray assembly, loading and unloading robot, sorting robot, conveying system, grinding system, tilting and unloading system, pressing system, control and management system, cleaning and drying system, and dust removal system into a single machine tool structure, providing a sealed dust-free space for the preparation of aluminum electrolytic testing samples. The equipment cabinet has a dustproof rating of IP3 to IP5, noise level controlled at level III, and is equipped with protective doors for convenient loading and unloading of raw materials and finished products for aluminum electrolytic testing samples. The cleaning and drying system includes a high-speed jet rinsing device, an air curtain, and a drying device. It is used to rinse and dry used grinding jars to prevent contamination of subsequent electrolyte sample preparation when the jars are reused. The high-speed jet rinsing device is used to rinse the used grinding components with a high-speed jet. The air curtain is used to blow away large water droplets from the cleaned grinding components. The drying device uses high-temperature, high-pressure air to dry the grinding components. The production cycle of the cleaning and drying system is ≤90s / piece. The dust removal system is used to perform negative pressure dust removal in the enclosed dust removal space inside the equipment cabinet, and is equipped with a negative pressure dust collector. The control and management system is used to control the loading / unloading tray assembly, loading and unloading robot, sorting robot, conveying system, grinding system, tipping and unloading system, pressing system, cleaning and drying system, and dust removal system to start, stop, and operate according to predetermined working conditions. The control and management system includes a host computer, slave computers, and chemical testing equipment, and has full lifecycle management functions for the sample preparation process, including sample preparation planning, sample tracking, sample preparation process monitoring, equipment operating status monitoring, quality recording, test data statistics, and sample traceability management. Processing parameters are set through the host computer, and test, alarm, and process information are displayed in real time. It can also communicate with third-party software via an interface. The slave computer operates according to a predetermined process, monitors operating information in real time and sends it to the host computer, and can control the system to automatically stop in an emergency and send fault information.

2. The automated sample preparation system for aluminum electrolyte testing according to claim 1, characterized in that: The grinding system is used to process the raw materials of aluminum electrolyte testing samples into fine powder with a particle size ≥80 mesh, and is equipped with an automatically opening anti-slip and flip-over protective cover; the grinding tank is used to hold the grinding blocks and the raw materials of aluminum electrolyte testing samples, and the grinding cover is detachably installed on the grinding tank.

3. The automated sample preparation system for aluminum electrolyte testing according to claim 1, characterized in that: The overturning and pouring system includes an overturning device, a pushing device, a hopper, and a pressing ring. The overturning device is used to overturn the grinding tank 180° so that the electrolyte ground into fine powder in the grinding tank is poured into the pressing ring through the hopper. The pushing device is used to push the pressing ring into the pressing system.

4. The automated sample preparation system for aluminum electrolyte testing according to claim 1, characterized in that: The sample pressing system includes a sample pressing device, a lifting device, a sample pressing ring placement tray, and a coding device. The lifting device is used to drive the sample pressing ring placement tray to move upward. When the fine powder in the sample pressing ring contacts the bottom of the sample pressing device, the pressure begins to increase. After reaching the set working pressure and maintaining it for a set working time, the fine powder in the sample pressing ring can be prepared into a preliminary sample for aluminum electrolyte testing. After the lifting device resets and drives the sample pressing placement tray to move downward, the preliminary sample is picked up by a sorting robot and written with a code by the coding device. Then, it is picked up by a loading and unloading robot and placed into a material receiving tray.

5. The automated sample preparation system for aluminum electrolyte testing according to claim 1, characterized in that: The automated sample preparation system for aluminum electrolyte testing can handle ≥50 aluminum electrolyte samples per batch, with a single sample preparation time of ≤150s, a single grinding tank cleaning and drying cycle of ≤90s, and an electrolyte particle size of ≥80 mesh after grinding.

6. The automated sample preparation system for aluminum electrolyte testing according to claim 1, characterized in that: The high-speed jet flushing device includes a high-pressure water pump, a nozzle, and a water supply pipeline; the air curtain includes a fan and a distribution duct; and the drying device includes a compressed air pipeline and an electric heater installed inside the compressed air pipeline.

7. An automated sample preparation process for aluminum electrolyte testing, characterized in that: The sample is prepared using the automated sample preparation system for aluminum electrolyte testing as described in any one of claims 1 to 6, and includes the following steps: (1) Manually position the loading tray and unloading tray, and close the protective cover door; (2) The grinding sample tank is conveyed to the loading position by the conveying system. The raw material of the aluminum electrolyte test sample in the material cup of the loading tray is poured into the grinding sample tank by the loading and unloading robot. After the grinding sample block is placed in the grinding sample tank, the grinding sample cover is covered. The sorting robot grabs the grinding sample tank onto the grinding machine body and grinds the sample according to the instructions of the control and management system. (3) After the grinding is completed, the sorting robot grabs the grinding cover and grinding block to the cleaning and drying system for cleaning and drying, and clamps the grinding tank to the tipping and pouring system. The tipping and pouring system pours the fine powder in the grinding tank into the pressing ring, and pushes the pressing ring into the pressing system. The pressing is completed in the pressing system to obtain the initial product. At the same time, the sorting robot grabs the grinding tank after pouring the fine powder to the cleaning and drying system for cleaning and drying. (4) The initial product is picked up by the sorting robot and placed on the inkjet printer. The inkjet printer prints the initial product according to the coding rules to obtain a sample. (5) The loading and unloading robot picks up the sample piece and puts it into the material tray, thereby completing the sample preparation for aluminum electrolyte testing; The automated sample preparation process for aluminum electrolyte testing can achieve ≥50 aluminum electrolyte samples loaded / unloaded in a single run, with a single sample preparation time of ≤150s, a single grinding tank cleaning and drying cycle of ≤90s, and an output electrolyte particle size of ≥80 mesh after grinding. The equipment cabinet has a dustproof rating of IP3~IP5 and noise control at level III.

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