Automated xrf detection cabinet for metal-containing solid materials

Abstract

This application relates to an automated XRF testing cabinet for metal-containing solid materials, belonging to the field of XRF testing technology. The automated XRF testing cabinet of this application includes: a cabinet body and a control unit, a feeding and drying unit, a sieving unit, a sample preparation press, a material transfer unit, and an XRF testing unit integrated within the cabinet body. This application highly integrates the pretreatment and testing processes of metal-containing solid materials into the testing cabinet, enabling automated XRF testing and analysis of metal-containing solid materials in a compact cabinet. This avoids the influence of human operational errors on the sample state, and helps improve the accuracy and reliability of the test results.

Description

Technical Field

[0001] This application relates to the field of XRF detection technology, and in particular to an automated XRF detection cabinet for solid materials containing metal. Background Technology

[0002] XRF (X-ray fluorescence spectrometry) is a method for determining the types and contents of trace elements in a substance. It is widely used in material composition analysis, such as in the analysis of the types and contents of metallic solid materials in raw ore during non-ferrous metal smelting. Currently, XRF detection technology can relatively quickly and effectively achieve accurate detection of the types and contents of corresponding elements in raw ore, thereby meeting the control requirements of non-ferrous metal smelting processes.

[0003] According to the XRF testing principle, after the sample is excited by X-rays, it generates a laser spectrum. Different types and amounts of elements produce energy spectra with different wavelengths and energy levels. The energy spectrum photons are counted by a receiver and converted into count values, thus determining the content of each element. For metal-containing solid materials, the particle size, density, and other physical properties of the sample have a significant impact on the precision and accuracy of XRF detection results. Therefore, before XRF testing, a series of sample preparation and compression pretreatment processes must be performed on the metal-containing solid materials to ensure that the samples have the same or uniform physical properties. This allows for the establishment of detection model algorithms corresponding to material samples with these physical properties, thereby minimizing the impact of complex factors on the detection results.

[0004] Currently, most metal-containing solid material sample testing is conducted in laboratories. The material pretreatment process requires manual operation by researchers, which not only results in low testing efficiency but also increases the impact of human factors on the consistency of sample pretreatment, affecting the accuracy and reliability of the test results. Furthermore, the metal sample pretreatment process generates a certain amount of gas containing heavy metal particles, which can have irreversible effects on the health of operators. In addition, applications requiring the testing of metal-containing solid materials, such as non-ferrous metal smelting, often involve mountainous areas, mines, and other complex processes. Therefore, the complex terrain and working conditions, coupled with the large amount of equipment involved in the pretreatment and testing of metal-containing solid materials, make proper installation and deployment difficult in industrial settings. Summary of the Invention

[0005] This application provides an automated XRF detection cabinet for metal-containing solid materials, which highly integrates the pretreatment and detection processes of metal-containing solid materials into the detection cabinet, enabling automated XRF detection and analysis of metal-containing solid materials in a compact detection cabinet.

[0006] This application discloses an automated XRF detection cabinet for metal-containing solid materials. The automated XRF detection cabinet includes: a cabinet body and a control unit, a feeding and drying unit, a sieving unit, a sample preparation press, a material transfer unit, and an XRF detection unit integrated within the cabinet body. The feeding and drying unit includes a material cylinder, a heating device, and a feeding port located on the cabinet body. The feeding and drying unit is used to quantitatively receive the metal-containing solid material and is capable of drying the metal-containing solid material. The sieving unit is used to sieve the metal-containing solid material and is located below the feeding and drying unit. The material transfer unit is used to transfer the metal-containing solid material. The material transfer unit is located below the sieving unit; the sample pressing machine is used to press the metal-containing solid material into a test sample, and the sample pressing machine can demold the test sample; the XRF detection unit is used to perform XRF detection analysis on the test sample located at the detection position; the control unit is signal-connected to the feeding and drying unit, the sieving unit, the sample pressing machine, the material transfer unit, and the XRF detection unit, and the control unit controls the material transfer unit to transfer the metal-containing solid material to the sample pressing machine and to transfer the test sample to the detection position of the XRF detection unit in a timing sequence.

[0007] The automated XRF detection cabinet for metal-containing solid materials provided in this application integrates multiple functional units, including a control unit, a feeding and drying unit, a sieving unit, a sample pressing unit, a material transfer unit, and an XRF detection unit, within the cabinet. This highly integrated cabinet boasts a compact structure and reasonable size, enabling it to adapt to complex terrains and working conditions. The control unit sequentially controls the operation of each functional unit, automating the drying, sieving, pressing, and XRF analysis of the received metal-containing solid material samples. The material transfer unit transfers the metal-containing solid material before and after pressing to a designated location, eliminating the need for manual operation. This avoids the influence of human error on the sample state, resulting in samples with consistent physical properties and improving the accuracy and reliability of the detection results. Furthermore, fully automated XRF detection saves labor and time costs, improves detection efficiency, and avoids health hazards to operators from heavy metal particles during pretreatment.

[0008] Preferably, the material transfer unit includes a horizontal drive module and a sample pressing mold. The horizontal drive module is signal-connected to the control unit, and the control unit can control the horizontal drive module to drive the sample pressing mold to move horizontally. The automated XRF testing cabinet is equipped with a scraper in the horizontal movement direction of the sample pressing mold, and the lower edge of the scraper is flush with the upper surface of the sample pressing mold. This application places the sample pressing mold in the material transfer unit, enabling it to receive metal-containing solid material samples that meet the screening conditions. Simultaneously, a scraper with its lower edge at the same horizontal plane as the upper surface of the sample pressing mold is provided. After the sample pressing mold is full of samples, during horizontal movement, as it passes under the scraper, the scraper can scrape away excess sample above the upper surface of the sample pressing mold, smoothing the upper surface of the sample in the mold and ensuring consistent sample volume for subsequent pressing, thereby ensuring the consistency of the pressed samples for testing.

[0009] Preferably, the sample preparation press includes a demolding ejector pin, which is used to demold the test sample. After demolding, the position of the test sample is higher than the upper surface of the sample preparation mold. After XRF detection and analysis, the demolding ejector pin pushes the test sample out from below. The sample preparation mold can then move horizontally and cooperate with a scraper. Taking advantage of the fact that the position of the test sample is higher than the upper surface of the sample preparation mold after demolding, the scraper scrapes the test sample away from the sample preparation mold, thus achieving automatic removal of the test sample after detection.

[0010] Preferably, the initial position of the sample pressing mold, the sample pressing position of the sample press, the demolding position, and the detection position of the XRF detection unit are on the same horizontal plane; the scraper is the side plate of the XRF detection unit. With these four positions on the same horizontal plane, the sample pressing mold can complete the connection between material handling, sample pressing, detection, and demolding processes simply by horizontal movement, which helps reduce the need for additional drive modules. Simultaneously, using the side panel of the XRF detection unit as a scraper to clean the sample from the sample pressing mold and remove the demolded sample allows for a more streamlined and compact structure of the automated XRF detection cabinet, further reducing its size. Furthermore, if sample pressing fails and the height of the test sample exceeds the sample pressing mold, the side panel can remove the failed test sample during its movement to the detection position of the XRF detection cabinet, improving the efficiency of XRF detection analysis.

[0011] Preferably, the automated XRF testing cabinet further includes a material crushing unit for crushing the metal-containing solid material. The material crushing unit is connected to the feeding and drying unit and the sieving unit. This application's material crushing unit, used to crush the dried metal-containing solid material, can control the particle size of the metal-containing solid material before sieving, improving its ability to pass through the sieve of the sieve unit, reducing waste, increasing the utilization rate of the material sample, and also helping to reduce the risk of clogging the sieve unit.

[0012] Preferably, the automated XRF testing cabinet further includes a material flow unit, which connects the material crushing unit and the sieving unit, and / or connects the sieving unit and the material transfer unit.

[0013] Preferably, the sieving unit includes a cylindrical screen and a rotary motor. The cylindrical screen is arranged horizontally or inclined, and the rotary motor can drive the cylindrical screen to rotate.

[0014] Preferably, the automated XRF testing cabinet further includes a waste discharge pipe, which is connected to the inside of the cylindrical screen. The waste discharge pipe is used to transfer metal-containing solid materials that do not meet the screening conditions out of the cabinet.

[0015] Preferably, the automated XRF testing cabinet further includes an XRF testing dustproof unit, which includes a drive motor and a dustproof cover that matches the testing port of the XRF testing unit. The dustproof cover is used to cover the testing port when the XRF testing unit is not in the testing state.

[0016] Preferably, the automated XRF testing cabinet further includes a dust removal fan and a constant temperature control unit, the dust removal fan and the constant temperature control unit being signal-connected to the control unit respectively; the dust removal fan is used to perform negative pressure dust removal inside the cabinet; the constant temperature control unit is used to control the temperature inside the cabinet.

[0017] Based on the automated XRF testing cabinet for metal-containing solid materials provided in this application, the control unit controls the sequential operation of each functional unit, and the material concentrator and transfer unit transfer the metal-containing solid material between processes. This eliminates the need for manual operation, automatically performing drying, sieving, pressing, and XRF testing on the received metal-containing solid material samples. This avoids the influence of human error on the sample state, resulting in press samples with consistent physical properties and improving the accuracy and reliability of the test results. Furthermore, fully automated XRF testing saves labor and time costs, improves testing efficiency, and avoids health hazards to operators from heavy metal particles during pretreatment. Additionally, the automated XRF testing cabinet has a compact structure, facilitating installation in complex working conditions and on-site environments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of an automated XRF detection cabinet containing metallic solid materials according to one embodiment of this application;

[0020] Figure 2 This is a front view of an automated XRF inspection cabinet containing metal solid materials according to one embodiment of this application.

[0021] Figure 3 A schematic diagram of the appearance of an integrated automated XRF detection device for metal-containing solid materials.

[0022] Reference numerals: 1. Control unit; 11. Server unit; 12. Overall machine control screen; 13. Keyboard drawer; 14. System and data control screen; 15. Warning panel; 2. Feeding and drying unit; 21. Material cylinder; 22. Feed inlet; 3. Sieving unit; 31. Waste discharge pipe; 4. Sample preparation press; 41. Hydraulic power module; 42. Sample preparation press electrical control box; 43. Pressing cylinder; 5. Material transfer unit; 6. XRF detection unit; 7. Material crushing unit; 8. Material confluence unit; 81. First collection funnel; 82. Second collection funnel; 83. Dust removal fan; 84. Constant temperature control unit; 91. Dustproof guard plate; 92. Support frame; 911. Ventilation and air exchange panel; 93. Positioning casters; 94. Partition plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] This application enables automated XRF detection of five metallic elements (copper, lead, zinc, cadmium, and arsenic) in the ore carried by the material conveyor belt in the feeding section of a zinc concentrate roasting kiln through the following technical solution: belt conveying speed 0.5 m / s, ore powder moisture content 10%, and ambient temperature 30℃.

[0025] Please refer to Figure 1 and Figure 2 This application provides an automated XRF detection cabinet for metal-containing solid materials. The automated XRF detection cabinet includes: a cabinet body and a control unit 1, a feeding and drying unit 2, a sieving unit 3, a sample preparation press 4, a material transfer unit 5, and an XRF detection unit 6 integrated inside the cabinet body. The feeding and drying unit 2 includes a material cylinder 21, a heating device (not shown in the figure), and a feeding port 22 located on the cabinet body; the feeding and drying unit 2 is used to quantitatively receive metal-containing solid materials, and can dry the metal-containing solid materials. The sieving unit 3 is used to sieve the metal-containing solid materials, and the sieving unit is located below the feeding and drying unit 2. The material transfer unit 5 is used to transfer the metal-containing solid materials, and the material transfer unit 5 is located below the sieving unit 3. The sample preparation press 4 is used to press the metal-containing solid materials into a test sample, and the sample preparation press 4 can demold the test sample. The XRF detection unit 6 is used to perform XRF detection analysis on the test sample located at the detection position. The control unit 1 is connected to the feeding and drying unit 2, the sieving unit 3, the sample preparation press 4, the material transfer unit 5, and the XRF detection unit 6. The control unit 1 controls the material transfer unit 5 to transfer the metal-containing solid material to the sample preparation press 4 in a time sequence and controls the material transfer unit 5 to transfer the test sample to the detection position.

[0026] In some embodiments, the control unit 1 is equipped with a programmable controller, and the control unit 1 is the access point for the external power supply of the device, as well as the power output point for each functional unit inside the automated XRF testing cabinet.

[0027] Please refer to Figure 2The automated XRF testing cabinet also includes a server unit 11, which is connected to the control unit 1 via a signal. The server unit 11, based on the Windows operating system, can build execution programs for each functional unit in the automated XRF testing cabinet containing metallic solid materials, detection data analysis and processing software, and programs for data communication with the XRF testing unit 6. It can set data and cooperate with the programmable controller set inside the control unit 1 to control each functional unit to work according to the built-in program and set data, thereby achieving precise control of the physical properties of metallic solid materials and further improving the accuracy of XRF detection and analysis.

[0028] Please refer to Figure 1 The automated XRF testing cabinet may also include a whole machine control screen 12, which is connected to the control unit 1 by signal. The whole machine control screen 12 can manually operate each functional unit by issuing commands to the control unit 1. It can be used for operation in the equipment debugging and maintenance state. The whole machine control screen 12 also configures the execution software and corresponding programs of each functional unit.

[0029] Please refer to Figure 2 The automated XRF testing cabinet may also include a keyboard drawer 13 and a system and data control panel 14, which is signal-connected to the server unit 11. Operators can use the system and data control panel 14 to operate the keyboard and / or mouse connected to the server unit 11 from the corresponding keyboard drawer 13, enabling them to set, execute, stop, and reset the programs of each functional unit of the automated XRF testing cabinet. The system and data control panel 14 can also output and display the analyzed testing data.

[0030] Please refer to Figure 2 The automated XRF testing cabinet may also include a warning panel 15, which is a status indicator panel for the automated XRF testing cabinet. The warning panel 15 may include three types of indicator lights with colors of red, green and yellow. When the internal functional units of the equipment encounter operational faults such as execution errors or timeouts, the red, green and yellow indicator lights on the warning panel 15 will provide a direct warning and prompt the operator to take appropriate action.

[0031] The automated XRF inspection cabinet of this application can be connected to a material conveyor belt, and the metal-containing solid material on the material conveyor belt can be automatically transferred to the feed port 22 of the automated XRF inspection cabinet.

[0032] In some embodiments, weight sensors are arranged at both ends of the feed cylinder 21 of the feeding drying unit 2 to measure the weight of the metal-containing solid material received by the feed cylinder 21. When the metal-containing solid material enters the feed cylinder 21 of the feeding drying unit 2, the weight sensors transmit the real-time weight value to the control unit 1. The control unit 1 calculates the feed amount through its internal program, and issues a signal command to stop receiving material when the program set value is reached.

[0033] The heating device of the feeding and drying unit 2 can be a heating element, which can be arranged on the outer wall of the material cylinder 21. When the material weight meets the requirements, the heating element heats the outer wall of the material cylinder 21, and the material is dried at a specified temperature for a certain period of time under program control to remove most of the moisture in the material, thereby reducing the impact of moisture on the detection accuracy of XRF analysis.

[0034] Please refer to Figure 2 The material transfer unit 5 includes a horizontal drive module 51 and a pressing mold 52. The horizontal drive module 51 is signal-connected to the control unit 1, which can control the horizontal drive module 51 to drive the pressing mold 52 to move horizontally. The automated XRF testing cabinet has a scraper on the horizontal movement direction of the pressing mold 52, with the lower edge of the scraper flush with the upper surface of the pressing mold. In its initial position, the pressing mold 52 can connect to the material outlet of the sieving unit 3 to receive metal-containing solid materials that meet the sieving conditions. When the material is full, the horizontal drive module 51 drives the pressing mold 52, which contains the material, to move horizontally towards the pressing position of the sample press 4. During the transfer, the scraper can scrape off excess material higher than the upper surface of the pressing mold 52, leveling the upper surface of the material in the pressing mold 52 to ensure consistent sample volume for subsequent pressing, thereby ensuring the consistency of the pressed samples for testing.

[0035] The horizontal drive module 51 can be a lead screw slide with a drive motor, and the sample pressing mold 52 is placed at a fixed position on the lead screw slide. For example, the drive motor can be a servo motor or a stepper motor.

[0036] In some embodiments, a waste collection device, such as a trash can, may be provided below the scraper to collect excess sample scraped off by the scraper.

[0037] In some embodiments, the sample pressing press 4 includes a hydraulic power module 41, a sample pressing press electrical control box 42, a pressing cylinder 43, hydraulic oil pipes, a lower pressing plate, an upper pressing plate, and a demolding ejector. The sample pressing press electrical control box 42 can serve as an independent controller for the sample pressing press 4, enabling automated sample pressing and demolding processes.

[0038] Optionally, the hydraulic power module 41 consists of a hydraulic oil tank, a hydraulic oil pump, an oil pump motor, a solenoid directional valve, and a throttle speed control valve. The hydraulic power module 41 provides power for the pressing and demolding actions of the sample preparation press 4. After the material transfer unit 5 transfers the sample mold 52 containing the material to the pressing position, the sample preparation press 4, according to the system control program, operates under the power of the hydraulic power module 41, with the upper and lower plates of the press working together to press the metal-containing solid material in the sample mold 52, forming a test sample. After pressing, the sample preparation press 4, driven by the hydraulic power module 41, resets its operation according to the system control program, awaiting the next action.

[0039] After pressing is completed, the material transfer unit 5 moves the pressing mold 52 containing the test sample to the detection position directly below the detection port of the XRF detection unit 6. After being transferred to the detection position, the XRF detection unit 6 begins XRF detection and analysis of the material. After the XRF detection unit 6 finishes detecting and processing the data according to the built-in program, the XRF detection and analysis ends, and the test results will be displayed on the system and data control screen 14.

[0040] Optionally, the sample preparation press 4 includes a demolding ejector column, which is used to demold the test sample. After demolding, the position of the test sample is higher than the upper surface of the sample mold 52. After XRF detection and analysis, the material transfer unit 5 transfers the sample mold 52 with the test sample to the demolding position of the sample preparation press 4. The sample preparation press 4, according to the system control program, operates the demolding ejector column under the power of the hydraulic power module 41 to push the test sample out from below, completing the demolding of the test sample. After demolding, the position of the test sample is higher than the upper surface of the sample mold 52. The sample preparation press 4, under the power of the hydraulic power module 41, resets according to the system control program. The sample mold 52 can move horizontally and cooperate with a scraper. When passing the scraper position, the scraper can scrape the test sample higher than the surface of the sample mold 52 from the sample mold 52, realizing automatic removal of the test sample after detection. After the test sample is removed, the material transfer unit 5 returns to its initial position, the entire testing process is completed, and it awaits the start of the next testing process.

[0041] Reference Figure 2 In this embodiment, the initial position of the sample pressing mold 52, the sample pressing position of the sample press 4, the demolding position, and the detection position of the XRF detection unit 6 are on the same horizontal plane; the scraper can be the side plate of the XRF detection unit 6.

[0042] Please refer to Figure 1The automated XRF testing cabinet also includes a material crushing unit 7, which is connected to the feeding and drying unit 2 and the screening unit 3. The material crushing unit 7 is signal-connected to the control unit 1. The material crushing unit 7 can crush the metal-containing solid material received and dried by the feeding and drying unit 2, and after crushing to the specified particle size, it enters the screening unit 3.

[0043] In some embodiments, the automated XRF testing cabinet further includes a material confluence unit 8, which is connected to the material crushing unit 7 and the sieving unit 3, and / or the material confluence unit 8 is connected to the sieving unit 3 and the material transfer unit 5.

[0044] For example, the material confluence unit can be selected from one or any combination of a material collection funnel, a confluence plate, and a flow guide channel.

[0045] Reference Figure 1 and Figure 2 In this embodiment, the material collection unit 8 can be a first collection funnel 81, or a second collection funnel 82, or the material collection unit 8 includes both a first collection funnel 81 and a second collection funnel 82. The first collection funnel 81 connects to the material outlet of the material crushing unit 7 and the material inlet of the sieving unit 3, and the second collection funnel 82 connects to the material outlet of the sieving unit 3 and the sample pressing mold 52 of the material transfer unit 5. The collection funnels collect and transfer materials, reducing material loss and the impact of dust on each functional unit. The metal-containing solid material crushed by the material crushing unit 7 enters the first collection funnel 81, which then conveys the material to the sieving unit 3 for sieving. Fine material that meets the sieving conditions (meets the sample pressing requirements) enters the second collection funnel 82 and is conveyed to the material transfer unit 5 to await transfer to the sample pressing machine 4.

[0046] In some embodiments, the sieving unit 3 includes a cylindrical screen and a rotary motor. The cylindrical screen is arranged horizontally or inclined, and the rotary motor can drive the cylindrical screen to rotate. Exemplarily, the screen mesh of the cylindrical screen is 50 mesh to 200 mesh, for example, the screen mesh is 100 mesh.

[0047] Reference Figure 1In this embodiment, the automated XRF testing cabinet also includes a waste discharge pipe 31, which is connected to the inside of the cylindrical screen. Coarse material that does not meet the screening conditions (cannot meet the requirements for pressed samples) after screening is discharged from the screening unit 3 to the waste discharge pipe 31. The waste discharge pipe 31 can transfer metal-containing solid materials that do not meet the screening conditions out of the cabinet. The waste discharge pipe 31 can be modified from a stainless steel hollow square tube. The opening at the top of the square tube corresponds to the coarse material outlet of the screening unit 3, allowing it to receive coarse material that does not meet the screening conditions obtained by the screening unit 3. A sealing door can be installed at the bottom opening of the square tube, which can be opened periodically by the operator to discharge the coarse material from the waste discharge pipe 31.

[0048] Optionally, the automated XRF testing cabinet also includes an XRF testing dustproof unit 61. This dustproof unit includes a drive motor and a dustproof cover that matches the testing port of the XRF testing unit 6. The dustproof cover is used to cover the testing port when the XRF testing unit 6 is not in testing mode. The drive motor can be a linear motor, and the dustproof cover can be dustproof cotton installed at the end of the linear motor. When the XRF testing unit 6 is not in testing mode, the linear motor can rise according to programmed instructions, driving the dustproof cotton at its end to block the testing port of the XRF testing unit 6, reducing dust contamination of the internal core components of the XRF testing unit 6.

[0049] Reference Figure 1 and Figure 2 As shown, the automated XRF testing cabinet also includes a dust removal fan 83 and a constant temperature control unit 84, both of which are connected to the control unit 1 via signal connections. The dust removal fan 83 is used for negative pressure dust removal inside the cabinet; the constant temperature control unit 84 is used to control the temperature inside the cabinet. The dust removal fan 83 can be a negative pressure fan, with its inlet located inside the equipment and its outlet leading to the outside of the cabinet. This allows for the discharge of fine dust generated during drying, sieving, crushing, and sample pressing processes to the outside of the cabinet. This achieves negative pressure dust removal for the material dust generated by the various functional units inside the automated XRF testing cabinet containing metallic solid materials, ensuring the cleanliness of the testing cabinet and reducing interference or damage to electronic components. The constant temperature control unit 84 can be a 220V cabinet-type air conditioner.

[0050] Reference Figure 2 and Figure 3 In this embodiment, the automated XRF testing cabinet also includes a dustproof panel 91 and a support frame 92. The dustproof panel 91 can be made of aluminum alloy sheet cut into sections according to the cabinet dimensions and can be fixed to the support frame 92 with bolts. For example, the thickness of the aluminum alloy sheet is 3mm or more. The support frame 92 can be spliced ​​from aluminum alloy profiles, bearing the weight of the entire equipment and ensuring the stability of the equipment structure.

[0051] In some embodiments, the automated XRF inspection cabinet further includes multi-layer partitions 94, with each functional unit arranged on the partition of the corresponding layer according to its relative position.

[0052] Please refer to Figure 3 The automated XRF testing cabinet also includes a ventilation panel 911 with ventilation holes. The ventilation holes of the ventilation panel 911 are connected to the constant temperature control unit 6 to assist the constant temperature control unit 6 in balancing the internal temperature of the automated XRF testing cabinet.

[0053] Reference Figure 2 and Figure 3 In one embodiment, the automated XRF inspection cabinet also includes positioning casters 93, which are used to move the automated XRF inspection cabinet and fix it in the application site.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automated XRF testing cabinet for metal-containing solid materials, characterized in that, The automated XRF testing cabinet includes: a cabinet body and a control unit, a feeding and drying unit, a sieving unit, a sample preparation press, a material transfer unit, and an XRF testing unit integrated inside the cabinet body; The feeding and drying unit includes a material cylinder, a heating device, and a feeding port located on the cabinet. The feeding and drying unit is used to quantitatively receive the metal-containing solid material and is capable of drying the metal-containing solid material. The sieving unit is used to sieve the metal-containing solid material, and the sieving unit is located below the feeding and drying unit; The material transfer unit is used to transfer the metal-containing solid material, and the material transfer unit is disposed below the sieving unit; The sample preparation press is used to press the metal-containing solid material into shape to obtain a test sample, and the sample preparation press is capable of demolding the test sample; The XRF detection unit is used to perform XRF detection and analysis on the detection sample located at the detection position; The control unit is signal-connected to the feeding and drying unit, the sieving unit, the sample preparation press, the material transfer unit, and the XRF detection unit. The control unit controls the material transfer unit to transfer the metal-containing solid material to the sample preparation press and controls the material transfer unit to transfer the test sample to the detection position of the XRF detection unit in a time sequence. The material transfer unit includes a horizontal drive module and a pressing mold. The horizontal drive module is signal-connected to the control unit, and the control unit can control the horizontal drive module to drive the pressing mold to move horizontally. The automated XRF testing cabinet is equipped with a scraper in the horizontal movement direction of the sample pressing mold, and the lower edge of the scraper is flush with the upper surface of the sample pressing mold. The initial position of the sample pressing mold, the sample pressing position of the sample press, the demolding position, and the detection position of the XRF detection unit are all on the same horizontal plane; The scraper is a side plate of the XRF detection unit; The automated XRF testing cabinet also includes a dust removal fan and a constant temperature control unit, which are respectively connected to the control unit via signals. The dust removal fan is used to perform negative pressure dust removal inside the cabinet, and the constant temperature control unit is used to control the temperature inside the cabinet.

2. The automated XRF inspection cabinet of claim 1, wherein, The sample preparation press includes a demolding top column, which is used to demold the test sample. After demolding, the position of the test sample is higher than the upper surface of the sample preparation mold.

3. The automated XRF testing cabinet according to claim 1, characterized in that, The automated XRF testing cabinet also includes a material crushing unit, which is used to crush the metal-containing solid material. The material crushing unit is connected to the feeding and drying unit and the screening unit.

4. The automated XRF testing cabinet according to claim 3, characterized in that, The automated XRF testing cabinet also includes a material flow unit, which connects the material crushing unit and the sieving unit, and / or connects the sieving unit and the material transfer unit.

5. The automated XRF testing cabinet according to claim 1, characterized in that, The sieving unit includes a cylindrical screen and a rotary motor. The cylindrical screen is arranged horizontally or at an incline, and the rotary motor can drive the cylindrical screen to rotate.

6. The automated XRF testing cabinet according to claim 5, characterized in that, The automated XRF testing cabinet also includes a waste discharge pipe, which is connected to the inside of the cylindrical screen. The waste discharge pipe is used to transfer metal-containing solid materials that do not meet the screening conditions out of the cabinet.

7. The automated XRF testing cabinet according to claim 1, characterized in that, The automated XRF testing cabinet also includes an XRF testing dustproof unit, which includes a drive motor and a dustproof cover that matches the testing port of the XRF testing unit. The dustproof cover is used to cover the testing port when the XRF testing unit is not in the testing state.

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