A molybdenum ore sample detection device based on FP-XRF method detection

Abstract

This utility model relates to the field of molybdenum ore sample detection technology, and discloses a molybdenum ore sample detection device based on the FP-XRF method. This utility model solves the problems of inaccurate excitation of samples of different shapes and sizes, unstable clamping of irregular samples, poor continuity of the detection process, and low efficiency in existing molybdenum ore detection technologies. The device uses a housing as its core support, with top components for easy operation and monitoring, side heat dissipation grilles to ensure a safe operating environment, and a front door for convenient operation. The internal six-degree-of-freedom translation stage flexibly adjusts the X-ray excitation source to adapt to various samples; the adaptive clamp precisely fixes irregular samples, avoiding displacement deviation; and the trapezoidal stage drive system combined with a position sensor allows for omnidirectional sample inspection. Simultaneously, the optimized semiconductor detector and integrated signal processing unit enhance signal acquisition and processing capabilities.

Description

Technical Field

[0001] This utility model relates to the field of molybdenum ore sample detection technology, specifically a molybdenum ore sample detection device based on the FP-XRF method. Background Technology

[0002] FP-XRF, or Basic Parametric X-ray Fluorescence Spectroscopy, is an elemental analysis technique based on the principle of X-ray fluorescence. In this method, when a sample is irradiated with X-rays, the elements in the sample are excited to produce characteristic X-ray fluorescence. FP-XRF determines the type and abundance of elements in the sample by measuring the energy and intensity of these characteristic X-rays.

[0003] Chinese patent CN218938272U discloses a rotatable mineral sample testing mechanism, mainly comprising a housing, a positioning mechanism, and a detection head. The positioning mechanism consists of a U-shaped frame, a clamping plate one, and a clamping plate two. During operation, the mineral sample is placed between clamping plates one and two. The piston rod of the electric push rod two extends, bringing clamping plate two closer to clamping plate one, clamping the mineral sample. The motor starts, and gear two at its output end drives gear one on the transmission shaft to rotate, causing the transmission shaft to rotate the U-shaped frame vertically, adjusting the position of the mineral sample. The piston rod of the electric push rod one extends and retracts, driving clamping plate one to rotate horizontally through the cooperation of a rack and pinion gear three, further changing the orientation of the mineral sample. In the detection head driving mechanism, the extension and retraction of electric push rod three moves a slider within a groove, and electric push rod four adjusts the height and horizontal position of the detection head, enabling the detection head to test different parts of the mineral sample. However, this method has poor accuracy in excitation of samples of different shapes and sizes, poor stability in holding irregular samples, and insufficient continuity in the detection process, resulting in relatively low efficiency.

[0004] In response to the aforementioned technologies, a molybdenum ore sample detection device based on the FP-XRF method is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a molybdenum ore sample detection device based on the FP-XRF method. By using this device, the problems of inaccurate excitation of samples of different shapes and sizes, unstable clamping of irregular samples, poor continuity of detection process and low efficiency in existing molybdenum ore detection technologies are solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molybdenum ore sample detection device based on FP-XRF method, comprising a housing, a status indicator light, an emergency stop button and a data transmission interface fixedly installed on the top of the housing, a heat dissipation grille fixedly installed on the side of the housing, an openable and closable hatch movably connected to the front of the housing via a hinge, and a trapezoidal platform fixedly installed at the bottom of the housing, characterized in that: a six-degree-of-freedom translation stage is fixedly installed at the top of the interior of the housing, an X-ray excitation source with a lead shielding shell is fixedly installed at the output end of the six-degree-of-freedom translation stage, a sample placement stage is rotatably arranged below the X-ray excitation source inside the housing, an adaptive clamp is fixedly installed on the sample placement stage, and a semiconductor detector and a signal processing unit are fixedly installed on the inner wall of the housing on one side of the sample placement stage;

[0007] The adaptive clamp includes an electric lifting arm, the top of which is movably connected to a movable rod via a joint bearing. One end of the movable rod is fixedly connected to a rotary motor, and the other end of the movable rod is fixedly connected to two electric telescopic rods on both sides. The output end of the electric telescopic rod is fixedly connected to a hexagonal clamping frame. Each side of the hexagonal clamping frame is screwed with a limit rod. One end of the limit rod is detachably connected to an elastic abutment block, which is in contact with the molybdenum ore sample. The other end of the limit rod is hinged to a movable locking pin for locking the stepping position.

[0008] Preferably, a brushless motor is fixedly installed inside the trapezoidal platform, and the output shaft of the brushless motor is fixedly connected to a rotating shaft via a coupling. One end of the rotating shaft, which extends into the box, is fixedly connected to the sample placement stage.

[0009] Preferably, a position sensor for feedback of the rotation position of the sample placement stage is fixedly installed on the rotating shaft, and the position sensor is electrically connected to an external control unit via a signal line.

[0010] Preferably, the semiconductor detector is positioned at an angle of 45 to 60 degrees to the sample placement stage.

[0011] Preferably, the semiconductor detector is provided with a metal casing, and the metal casing is provided with thermally conductive silicone.

[0012] Preferably, the signal processing unit is composed of a multi-layer circuit board, on which amplifiers, filters and analog-to-digital converters are integrated. The signal processing unit is electrically connected to a semiconductor detector and an external control unit via ribbon cables.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model proposes a molybdenum ore sample detection device based on the FP-XRF method. Its internal top-mounted six-degree-of-freedom translation stage possesses multi-directional translation and rotational capabilities, allowing for flexible and precise adjustment of the X-ray excitation source's spatial position for molybdenum ore samples of different shapes and sizes. This ensures stable and reliable excitation effects, significantly improving detection accuracy and applicability, and effectively solving the problem of inaccurate excitation detection due to varying sample morphologies in existing technologies. Simultaneously, the lead shielding shell of the X-ray excitation source effectively blocks X-ray scattering, reduces the risk of radiation leakage, and effectively protects the health of operators and the safety of the surrounding environment.

[0015] 2. This utility model proposes a molybdenum ore sample detection device based on the FP-XRF method. The adaptive clamp on the sample placement stage works in concert with multiple components such as an electric lifting arm, a rotary motor, and an electric telescopic rod. It can adaptively adjust the clamping posture and force according to the thickness, shape, and other characteristics of the molybdenum ore sample, achieving stable gripping of various irregular samples and ensuring that the sample remains stationary during the detection process, avoiding detection errors caused by sample displacement. In addition, the brushless motor in the trapezoidal base drives the rotating shaft to rotate the sample placement stage. With the help of a high-precision position sensor for real-time monitoring and feedback, the sample is illuminated from all directions. Combined with a semiconductor detector set at a specific angle with optimized heat dissipation and electromagnetic shielding structure, and a signal processing unit with an integrated multi-functional circuit board, the device comprehensively ensures the high efficiency and accuracy of the entire process from signal acquisition, transmission to processing output, improving detection sensitivity, accuracy, and result reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of one side of the structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the brushless motor structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the adaptive clamp structure of this utility model.

[0021] In the diagram: 1. Housing; 11. Status indicator light; 12. Emergency stop button; 13. Data transmission interface; 2. Heat dissipation grille; 3. Door; 4. Trapezoidal base; 5. Brushless motor; 51. Rotary axis; 52. Position sensor; 6. Six-DOF translation stage; 61. X-ray excitation source; 7. Sample placement stage; 71. Adaptive fixture; 72. Electric lifting arm; 73. Movable rod; 74. Rotary motor; 75. Hexagonal clamping frame; 76. Limiting rod; 761. Elastic abutment block; 762. Movable locking pin; 8. Semiconductor detector; 9. Signal processing unit. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] Combination Figures 1-5 A molybdenum ore sample detection device based on the FP-XRF method is disclosed, comprising a housing 1, which serves as the basic structure of the entire device, providing protection and mounting support for internal components. A status indicator light 11 is fixedly installed on its top, providing clear light signals to the operator to provide real-time feedback on the device's operating status, such as a solid green light for stable operation and a flashing yellow light for fault warnings, allowing the operator to quickly understand the device's condition. An emergency stop button 12 is also provided; in an emergency, pressing the emergency stop button 12 will immediately shut down the device, preventing potential dangers and ensuring the safety of personnel and equipment. A data transmission interface 13 is also provided, used to connect to external storage or analysis devices to achieve rapid and stable output of detection data, providing support for subsequent data processing and research. A heat dissipation grille 2 is fixedly installed on the side of the housing 1. The heat dissipation grille 2, with its porous structure, promotes air circulation, effectively dissipating the heat generated during device operation, maintaining a suitable internal temperature environment, ensuring the stable performance of each component, and extending its service life. The front of the housing 1 is hinged to an openable door 3. The door 3's opening and closing design allows operators to easily insert or remove molybdenum ore samples, improving operational convenience and efficiency. A trapezoidal base 4 is fixedly installed at the bottom of the housing 1. The trapezoidal base 4 provides stable support with its unique trapezoidal structure, bearing the weight of the entire device and effectively preventing the device from shaking or shifting during operation, which could affect the detection accuracy.

[0025] A six-degree-of-freedom translation stage 6 is fixedly installed at the top of the interior of housing 1. This stage is capable of translation along the X, Y, and Z axes and rotation around these axes. Through precise control, the spatial position of the X-ray excitation source 61, equipped with a lead-shielded shell, mounted at its output end, can be flexibly adjusted. For molybdenum ore samples of varying shapes and sizes, the irradiation angle and area of ​​the X-ray excitation source 61 can be precisely controlled, ensuring the stability and reliability of the excitation effect and laying the foundation for subsequent accurate detection. The lead-shielded shell effectively blocks X-ray scattering, greatly reducing the risk of radiation leakage, protecting operators from radiation hazards, and preventing adverse effects on the surrounding environment.

[0026] Inside the chamber, a sample placement stage 7 is rotatably mounted below the X-ray excitation source 61. This stage provides a support platform for the molybdenum ore sample, and an adaptive clamp 71 is fixedly mounted on it. The adaptive clamp 71 includes an electrically operated lifting arm 72, the top of which is movably connected to a movable rod 73 via a joint bearing. This electrically operated lifting function allows for flexible height adjustment based on the thickness of the molybdenum ore sample, ensuring precise sample fit. One end of one movable rod 73 is fixedly connected to a rotary motor 74, which drives the connected movable rod and its associated components to rotate. For irregularly shaped samples, the clamping posture can be dynamically adjusted for stable gripping. The other end of the movable rod 73 is fixedly connected to two electrically operated telescopic rods 731. These rods have a telescopic stroke set according to the common size variations of molybdenum ore samples, and their output ends are fixedly connected to hexagonal clamping frames 75. These frames, in conjunction with the electric telescopic rods 731, allow for size adjustment to meet the clamping needs of samples of different sizes. Each side of the hexagonal clamping frame 75 is screwed with a limiting rod 76. One end of the limiting rod 76 is detachably connected to an elastic abutment block 761. The elastic abutment block 761 is made of highly elastic, wear-resistant rubber material. When it comes into contact with the molybdenum ore sample, it can adaptively adjust the contact area and pressure according to the sample contour to ensure that the sample remains stationary during the testing process. The other end of the limiting rod 76 is hinged to a movable locking pin 762 for locking the step position. The operator can easily operate the movable locking pin 762 to quickly and accurately adjust the extension length of the limiting rod 76 according to the actual sample and lock it to ensure testing accuracy.

[0027] A semiconductor detector 8 and a signal processing unit 9 are fixedly installed on the inner wall of the housing 1 on one side of the sample placement stage 7. The signal processing unit 9 consists of a multi-layer circuit board, on which amplifiers, filters, and analog-to-digital converters are tightly integrated. The amplifier linearly amplifies the weak fluorescence signal collected by the semiconductor detector 8, the filter effectively removes noise interference from the signal, and the analog-to-digital converter converts the analog signal into a digital signal for subsequent processing. The signal processing unit 9 is electrically connected to the semiconductor detector 8 and the external control unit via ribbon cables, enabling fast and accurate signal transmission and processing, providing a strong guarantee for the final output of accurate detection results.

[0028] A brushless motor 5 is fixedly installed inside the trapezoidal base 4. The output shaft of the brushless motor 5 is fixedly connected to a rotating shaft 51 via a coupling, providing stable power to the rotating shaft 51 and driving it to rotate smoothly. One end of the rotating shaft 51, which extends into the housing 1, is fixedly connected to the sample placement stage 7, causing the sample placement stage 7 and the molybdenum ore sample on it to rotate in all directions. This ensures that all parts of the sample can be fully tested, avoiding deviations in test results due to differences in local features.

[0029] A position sensor 52 for feedback of the rotation position of the sample placement stage 7 is fixedly installed on the rotating shaft 51. The position sensor 52 adopts high-precision sensing technology to monitor the rotation angle and position information of the rotating shaft 51 in real time and accurately. It is electrically connected to an external control unit through a signal line. The external control unit accurately controls the start, stop and rotation direction of the brushless motor 5 according to the feedback information to ensure the positioning accuracy of the sample during the rotation process and ensure the accuracy of the detection process.

[0030] The semiconductor detector 8 is positioned at an angle of 45°-60° to the sample stage 7. Experiments have verified that within this angle range, the semiconductor detector 8 can receive characteristic fluorescence signals at its optimal state, improving the sensitivity and accuracy of detection and providing more reliable data support for the compositional analysis of molybdenum ore samples. The semiconductor detector 8 is equipped with a metal casing, which serves a dual function: firstly, it acts as an electromagnetic barrier, isolating external electromagnetic interference and ensuring the normal operation of the internal electronic components of the detector; secondly, thanks to the thermally conductive silicone on it, it quickly conducts the heat generated by the detector during operation, maintaining a suitable operating temperature and ensuring that the semiconductor detector 8 can continue to operate efficiently in a stable environment, thus improving the stability of detection performance.

[0031] The signal processing unit 9 consists of a multi-layer circuit board, on which amplifiers, filters, and analog-to-digital converters are integrated, each performing its specific function. The amplifier amplifies the weak fluorescence signal, the filter removes noise, and the analog-to-digital converter converts the analog signal into a digital signal. These three components work together, and in conjunction with the signal processing unit 9, they are electrically connected to the semiconductor detector 8 and the external control unit via ribbon cables to achieve smooth and accurate signal transmission and processing, laying a solid foundation for the accurate output of detection results.

[0032] Working Principle: When this molybdenum ore sample detection device based on the FP-XRF method is in operation, firstly, the molybdenum ore sample is placed on the sample placement stage 7. The adaptive clamp 71 functions, the electric lifting arm 72 adjusts its height according to the sample thickness, and the rotary motor 74 drives the movable rod 73 to rotate to adjust the clamping posture. The electric telescopic rod 731 drives the hexagonal clamping frame 75, in conjunction with the limiting rod 76, the elastic abutment block 761, and the movable locking pin 762, to firmly fix the sample. Next, the six-degree-of-freedom translation stage 6 at the top of the housing 1 is precisely controlled, driving the X-ray excitation source 61 with a lead-shielded shell to adjust its spatial position for precise irradiation of the sample. The lead-shielded shell prevents radiation leakage. Simultaneously, the brushless motor 5 inside the trapezoidal base 4 drives the rotating shaft 51 to rotate, causing the sample placement stage 7 to rotate. The position sensor 52 monitors and provides feedback in real time to ensure positioning accuracy and allow the sample to be irradiated from all directions. Finally, the semiconductor detector 8 receives the characteristic fluorescence signal at an angle of 45°-60°. After processing by the amplifier, filter, and analog-to-digital converter in the signal processing unit 9, accurate results are output. Among them, the multi-component collaborative adaptive clamping of the adaptive fixture 71 and the flexible adjustment of the irradiation position by the six-degree-of-freedom translation stage 6 are innovative highlights, ensuring efficient and accurate detection.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molybdenum ore sample detection device based on FP-XRF method, comprising a housing (1), wherein a status indicator light (11), an emergency stop button (12), and a data transmission interface (13) are fixedly installed on the top of the housing (1), a heat dissipation grille (2) is fixedly installed on the side of the housing (1), an openable door (3) is movably connected to the front of the housing (1) via a hinge, and a trapezoidal base (4) is fixedly installed at the bottom of the housing (1), characterized in that: A six-degree-of-freedom translation stage (6) is fixedly installed at the top of the interior of the box (1). An X-ray excitation source (61) with a lead shielding shell is fixedly installed at the output end of the six-degree-of-freedom translation stage (6). A sample placement stage (7) is rotatably installed inside the box (1) below the X-ray excitation source (61). An adaptive clamp (71) is fixedly installed on the sample placement stage (7). A semiconductor detector (8) and a signal processing unit (9) are fixedly installed on the inner wall of the box (1) on one side of the sample placement stage (7). The adaptive clamp (71) includes an electric lifting arm (72), the top of which is movably connected to a movable rod (73) via a joint bearing. One end of the movable rod (73) is fixedly connected to a rotary motor (74), and the other end of the movable rod (73) is fixedly connected to two electric telescopic rods (731). The output end of the electric telescopic rod (731) is fixedly connected to a hexagonal clamping frame (75). Each side of the hexagonal clamping frame (75) is screwed with a limit rod (76). One end of the limit rod (76) is detachably connected to an elastic abutment block (761), which is in contact with the molybdenum ore sample. The other end of the limit rod (76) is hinged to a movable locking pin (762) for locking the step position.

2. The molybdenum ore sample detection device based on FP-XRF method according to claim 1, characterized in that: A brushless motor (5) is fixedly installed inside the trapezoidal base (4). The output shaft of the brushless motor (5) is fixedly connected to a rotating shaft (51) via a coupling. One end of the rotating shaft (51) that extends into the box (1) is fixedly connected to the sample placement stage (7).

3. A molybdenum ore sample detection device based on FP-XRF method according to claim 2, characterized in that: A position sensor (52) for feedback of the rotation position of the sample placement stage (7) is fixedly installed on the rotating shaft (51). The position sensor (52) is electrically connected to an external control unit through a signal line.

4. A molybdenum ore sample detection device based on FP-XRF method according to claim 1, characterized in that: The semiconductor detector (8) is set at an angle of 45°-60° to the sample placement stage (7).

5. A molybdenum ore sample detection device based on FP-XRF method according to claim 1, characterized in that: The semiconductor detector (8) is provided with a metal shell, and the metal shell is provided with thermally conductive silicone.

6. A molybdenum ore sample detection device based on FP-XRF method according to claim 1, characterized in that: The signal processing unit (9) consists of a multi-layer circuit board, on which amplifiers, filters and analog-to-digital converters are integrated. The signal processing unit (9) is electrically connected to the semiconductor detector (8) and the external control unit via a ribbon cable.

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