Alloy slag purity real-time measurement equipment fused with laser-induced breakdown spectroscopy

Abstract

The invention relates to the technical field of alloy slag purity detection, in particular to alloy slag purity real-time measurement equipment fused with laser-induced breakdown spectroscopy, which comprises a laser emission module, a spectrum acquisition module, a fixed bracket and an adjusting assembly. The laser emission module generates plasma on the surface of a sample through the focusing lens, and the spectrum acquisition module converts optical signals into electric signals and transmits the electric signals to the spectrum analyzer for analysis. The adjusting assembly achieves accurate adjustment of the height and the position through a lifting table and a sliding supporting piece, and the fixing support drives a sliding block to move through a threaded rod so as to optimize the laser focus position. According to the equipment, complex sample pretreatment is avoided through non-contact detection, the anti-interference capability and the signal quality are improved by using a shock pad and an optical filter, the detection efficiency and the accuracy are remarkably improved, and the equipment is suitable for various environmental conditions and has relatively high practicability and popularization value.

Description

Technical Field

[0001] The present invention belongs to the technical field of metallurgy and spectral analysis, and in particular relates to a real-time measurement device for alloy slag purity integrating laser induced breakdown spectroscopy. Background Art

[0002] During alloy production, the purity of alloy slag is a key indicator of product quality and performance. Currently, several slag purity testing devices based on chemical analysis and spectral detection techniques have emerged on the market. However, these devices often require complex sample pretreatment processes and exhibit low detection efficiency. Furthermore, these devices have high environmental requirements in practical applications, potentially limiting their widespread use in real-time on-site monitoring.

[0003] For example: the "A device for detecting the flatness of the edge of insulating glass" disclosed in application number: 202310677481.9, its specification discloses: comprising a fixed base plate, a support rod fixedly connected to the fixed base plate, a protective top plate fixedly connected to the top end of the support rod, a first spring fixedly connected inside the fixed base plate, a sliding block fixedly connected to the other end of the first spring, the sliding block limitedly slidingly connected inside the fixed base plate, a clamping plate fixedly connected to the top end of the sliding block, an adaptive cleaning component installed on the clamping plate, an automatic adsorption component and a steering component installed on the fixed base plate, the adaptive cleaning component is connected to the automatic adsorption component via a steel wire rope. This application can not only perform adaptive detection on glass of different sizes, but also conveniently clean the detection part of the glass; the above patent can prove the defects of the existing technology.

[0004] Therefore, we have made improvements to this problem and proposed a real-time measurement device for alloy slag purity that integrates laser-induced breakdown spectroscopy. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems that existing alloy slag purity detection equipment requires a complex sample pretreatment process, has low detection efficiency and has high requirements on environmental conditions.

[0006] In order to achieve the above-mentioned purpose of the invention and improve the above-mentioned problem, the present invention provides a real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy, comprising a measurement main structure, wherein the measurement main structure includes a laser emission module and a spectrum acquisition module, wherein the laser emission module is connected to the spectrum acquisition module via a fixed bracket, and an adjustment component is provided at the bottom of the spectrum acquisition module, wherein the adjustment component is used to adjust the relative position between the spectrum acquisition module and the sample to be measured, and a sliding support is provided inside the adjustment component;

[0007] The spectrum acquisition module includes a focusing lens group, a receiving optical fiber is provided at the front end of the focusing lens group, and a spectrum analyzer is provided at the end of the receiving optical fiber. The laser emission module includes a laser generator, and a focusing lens is provided at the output end of the laser generator. The focus of the focusing lens is located on the surface of the sample to be tested. Plasma is generated on the surface of the sample to be tested by the laser emission module. The spectrum acquisition module converts the optical signal emitted by the plasma into an electrical signal and transmits it to the spectrum analyzer for analysis.

[0008] As a preferred technical solution of the present application, the fixed bracket includes a support plate, two parallel guide grooves are opened on the top of the support plate, a slider is provided in the guide groove, the slider is fixedly connected to the bottom of the laser emission module, the slider is connected to the support plate through a threaded rod, and a handwheel is provided at one end of the threaded rod. When the handwheel is rotated, the threaded rod is driven to rotate, thereby driving the slider to move along the guide groove to adjust the position of the laser emission module.

[0009] As the preferred technical solution of the present application, the adjustment component includes a base, a lifting platform is provided on the top of the base, a mounting plate is fixedly connected to the top of the lifting platform, guide columns are provided on both sides of the mounting plate, the guide columns pass through the lifting platform and are fixedly connected to the base, a driving motor is provided at the bottom of the lifting platform, a screw is provided on the output shaft of the driving motor, and the screw is threadedly connected to the lifting platform. When the driving motor is running, the screw rotates to drive the lifting platform to move up and down along the guide column, thereby adjusting the height of the spectral acquisition module.

[0010] As a preferred technical solution of the present application, the sliding support member includes a slide rail, which is fixed to the top of the base, and sliders are provided on both sides of the slide rail. The sliders are fixedly connected to the bottom of the mounting plate, and ball bearings are provided inside the sliders. The ball bearings are in contact with the slide rails to reduce the friction of the sliders on the slide rails and improve the smoothness of sliding.

[0011] As a preferred technical solution of the present application, the focusing lens group includes a plurality of convex lenses arranged in sequence, with spacer rings provided between the convex lenses. The thickness of the spacer rings is determined according to optical design parameters to ensure effective focusing of the light signal.

[0012] As a preferred technical solution of the present application, a filter is provided at the end of the receiving optical fiber, and the filter is used to filter stray light to improve the signal-to-noise ratio of the spectral signal.

[0013] As a preferred technical solution of the present application, a shock-absorbing pad is provided at the bottom of the base. The shock-absorbing pad is made of rubber material and has a thickness of 10 mm to 20 mm to reduce the influence of external vibration on the measurement accuracy.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By integrating a laser emission module and a spectrum acquisition module, the system utilizes laser-induced breakdown spectroscopy (LIBS) technology to perform non-contact testing on the surface of the sample being tested, avoiding complex sample pretreatment processes. Furthermore, by coordinating the adjustment components with the fixed bracket, precise adjustment of the laser emission module and spectrum acquisition module is achieved, ensuring that the laser focus remains consistent with the surface of the sample being tested, thereby improving detection accuracy and efficiency. Furthermore, the inclusion of shock-absorbing pads and optical filters further enhances the device's anti-interference capabilities and the quality of the spectral signal, resolving the existing issues of high environmental requirements and low detection efficiency associated with detection equipment.

[0016] The present invention realizes the real-time measurement of the purity of alloy slag by specific technical means, has reasonable structural design, is easy to operate, and has high practicality and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the fixing bracket in the present invention.

[0019] Figure 3 It is a structural schematic diagram of the adjustment component in the present invention.

[0020] Figure 4 A partial enlarged view of the spectrum acquisition module in the present invention

[0021] Figure 5 Schematic diagram of the internal structure of the slide rail of the present invention.

[0022] The accompanying drawings are numbered as follows:

[0023] 1. Measuring main structure; 2. Laser emission module; 3. Spectrum acquisition module; 4. Fixed bracket; 5. Adjustment assembly; 6. Sliding support; 7. Focusing lens group; 8. Receiving optical fiber; 9. Spectrum analyzer; 10. Laser generator; 11. Support plate; 12. Guide groove; 13. Slider; 14. Threaded rod; 15. Handwheel; 16. Base; 17. Lifting platform; 18. Mounting plate; 19. Guide column; 20. Drive motor; 21. Lead screw; 22. Slide rail; 23. Ball bearing; 24. Spacer ring; 25. Filter; 26. Shock pad. DETAILED DESCRIPTION

[0024] The present invention provides a real-time measurement device for alloy slag purity integrating laser induced breakdown spectroscopy. The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Figure 1This is a schematic diagram of the overall structure of the present invention, showing the layout of the measurement main structure 1 and the connection between the laser emission module 2 and the spectrum acquisition module 3. The measurement main structure 1 includes the laser emission module 2, the spectrum acquisition module 3, a fixed bracket 4, and an adjustment assembly 5. The laser emission module 2 is connected to the spectrum acquisition module 3 via the fixed bracket 4. The adjustment assembly 5 is located at the bottom of the spectrum acquisition module 3 and is used to adjust the relative position between the spectrum acquisition module 3 and the sample to be measured. The adjustment assembly 5 is internally provided with a sliding support 6 to enhance the stability of the adjustment assembly 5.

[0025] like Figure 2 As shown, the fixed bracket 4 includes a support plate 11, and two parallel guide grooves 12 are provided on the top of the support plate 11. A slider 13 is provided in the guide groove 12, and the slider 13 is fixedly connected to the bottom of the laser emitting module 2. The slider 13 is connected to the support plate 11 through a threaded rod 14, and a handwheel 15 is provided at one end of the threaded rod 14. When the handwheel 15 is rotated, the threaded rod 14 rotates, driving the slider 13 to move along the guide groove 12, thereby adjusting the position of the laser emitting module 2 to ensure that the laser focus is consistent with the surface of the sample to be measured. The length and width of the guide groove 12 are designed according to actual use requirements and can meet the precise adjustment of the laser emitting module 2 in the horizontal direction. An anti-slip gasket is provided at the bottom of the slider 13 to prevent the slider 13 from being displaced in the guide groove 12 due to external force.

[0026] Figure 3 The schematic diagram of the structure of the adjustment component 5 is shown. The adjustment component 5 includes a base 16, a lifting platform 17 is provided on the top of the base 16, and a mounting plate 18 is fixedly connected to the top of the lifting platform 17. The mounting plate 18 is used to install the spectrum acquisition module 3. Guide columns 19 are provided on both sides of the mounting plate 18. The guide columns 19 pass through the lifting platform 17 and are fixedly connected to the base 16. The guide columns 19 are used to limit the movement trajectory of the lifting platform 17 to ensure that it moves smoothly in the vertical direction. A drive motor 20 is provided at the bottom of the lifting platform 17. A screw 21 is provided on the output shaft of the drive motor 20. The screw 21 is threadedly connected to the lifting platform 17. When the drive motor 20 is running, the screw 21 rotates to drive the lifting platform 17 to move up and down along the guide column 19, thereby adjusting the height of the spectrum acquisition module 3. The range of movement of the lifting platform 17 is determined by the length of the screw 21, and a locking device is provided on the top of the lifting platform 17 to fix its position after the height adjustment is completed.

[0027] The sliding support 6 includes a slide rail 22, which is fixed to the top of the base 16. Sliders 13 are provided on both sides of the slide rail 22 and are fixedly connected to the bottom of the mounting plate 18. Ball bearings 23 are provided within the slide rail 22, which contact the slide rail 22 to reduce friction between the slide rail 22 and improve sliding smoothness. The length and width of the slide rail 22 are designed according to actual usage requirements to enable precise horizontal adjustment of the spectrum acquisition module 3. Anti-slip pads are provided at the bottom of the slide rail 22 to prevent displacement of the slide rail 22 due to external forces.

[0028] The spectrum acquisition module 3 includes a focusing lens assembly 7, with a receiving optical fiber 8 at its front end and a spectrum analyzer 9 at its end. The focusing lens assembly 7 comprises a plurality of sequentially arranged convex lenses, with spacer rings 24 positioned between the lenses. The thickness of the spacer rings 24 is determined based on optical design parameters to ensure effective focusing of the optical signal. A filter 25 is positioned at the end of the receiving optical fiber 8 to filter stray light and improve the signal-to-noise ratio of the spectral signal. The material and thickness of the filter 25 are selected based on actual usage requirements and can effectively filter stray light within a specific wavelength range.

[0029] The laser emission module 2 includes a laser generator 10. A focusing lens is located at the output end of the laser generator 10, with the focal point of the focusing lens positioned on the surface of the sample to be tested. Laser light emitted by the laser generator 10 is focused by the focusing lens, generating a plasma on the surface of the sample to be tested. The spectrum acquisition module 3 converts the optical signal emitted by the plasma into an electrical signal, which is then transmitted to the spectrum analyzer 9 for analysis. The power and wavelength of the laser generator 10 are selected based on actual usage requirements to meet the testing requirements of different types of alloy slag.

[0030] like Figure 5 As shown, a shock-absorbing pad 26 is installed at the bottom of the base 16. This pad is made of rubber and has a thickness of 10 mm to 20 mm. The thickness of the pad is selected based on actual usage requirements and can effectively reduce the impact of external vibration on measurement accuracy. The pad is fixed to the bottom of the base 16 with bolts and has a non-slip texture on its surface to improve the stability of the device when placed.

[0031] In actual operation, the sample to be tested is first placed under the spectrum acquisition module 3, and the height of the spectrum acquisition module 3 is adjusted by adjusting the component 5 so that the focus of the focusing lens group 7 is consistent with the surface of the sample to be tested. Then the position of the laser emission module 2 is adjusted by the fixed bracket 4 so that the focus of the laser is consistent with the surface of the sample to be tested. The laser generator 10 is started, and the laser is focused by the focusing lens to generate plasma on the surface of the sample to be tested. The light signal emitted by the plasma is focused by the focusing lens group 7 and enters the receiving optical fiber 8. The receiving optical fiber 8 transmits the light signal to the spectrum analyzer 9 for analysis. The spectrum analyzer 9 calculates the purity of the alloy slag based on the received light signal and displays the result on the screen. During the detection process, the shock-absorbing pad 26 and the filter 25 respectively play the role of reducing external vibration interference and improving the quality of the spectral signal, thereby ensuring the accuracy and reliability of the detection results.

[0032] In the above-described embodiment, the connection and positional relationships between the various components have been precisely designed to ensure the stability and accuracy of the device in actual use. The design of the fixed bracket 4 and the adjustment assembly 5 allows the position of the laser emission module 2 and the spectrum acquisition module 3 to be flexibly adjusted to accommodate samples of different sizes and shapes. The layout of the focusing lens group 7 and the receiving optical fiber 8 has been optimized to maximize the efficiency and quality of optical signal acquisition. The provision of the shock-absorbing pad 26 further enhances the device's anti-interference ability, enabling stable operation in complex environments.

[0033] In order to better enable relevant personnel in this technical field to fully understand and implement the present invention, the implementation principle of the present invention is supplemented below with reference to specific application scenarios.

[0034] In actual operation, the alloy slag sample to be tested is first placed in the detection area below the measurement main structure 1. The height of the spectrum acquisition module 3 is adjusted by adjusting the component 5 to ensure that the focus of the focusing lens group 7 is consistent with the surface of the sample to be tested. Specifically, after the drive motor 20 is started, it drives the screw 21 to rotate, and the screw 21 is threadedly connected to the lifting platform 17, thereby pushing the lifting platform 17 to move smoothly along the guide column 19. This design limits the motion trajectory of the lifting platform 17 through the guide column 19, avoiding measurement errors caused by offset. At the same time, the design of the slide rail 22 and the ball bearing 23 of the sliding support 6 effectively reduces friction and further improves the stability of the adjustment process.

[0035] Subsequently, the position of the laser emitting module 2 is adjusted by fixing the bracket 4 so that the laser focus is accurately aligned with the surface of the sample to be measured. Specifically, when the handwheel 15 is rotated, the threaded rod 14 rotates accordingly, driving the slider 13 to move horizontally along the guide groove 12. The bottom of the slider 13 is provided with an anti-slip pad to prevent it from being displaced by external forces when in the stopped state, thereby ensuring the accuracy of the position of the laser emitting module 2. Through the above steps, the spatial coordinated positioning of the laser emitting module 2 and the spectrum acquisition module 3 is achieved, providing a basic guarantee for subsequent detection.

[0036] After the equipment completes initial positioning, the laser generator 10 is activated. The laser light is focused by a focusing lens and then generates plasma on the surface of the sample to be tested. During this process, the power and wavelength of the laser generator 10 are selected based on the characteristics of the alloy slag to ensure that the plasma generation efficiency and signal strength meet the detection requirements. The optical signal emitted by the plasma is focused by the multiple convex lenses of the focusing lens assembly 7 before entering the receiving optical fiber 8. The thickness of the spacer ring 24 in the focusing lens assembly 7 is precisely calculated to effectively focus the optical signal, thereby improving the quality of signal acquisition.

[0037] Receiving optical fiber 8 transmits the optical signal to spectrum analyzer 9 for analysis. Filter 25 plays a key role in this process. Its optimized material and thickness filter out stray light within a specific wavelength range, significantly improving the signal-to-noise ratio of the spectral signal. Spectrum analyzer 9 processes the received optical signal and calculates the purity of the alloy slag based on its spectral characteristics. The final results are displayed in real time on the screen, allowing operators to quickly access test data.

[0038] During testing, the design of the shock-absorbing pad 26 further enhances the device's ability to resist interference. Made of rubber and 10 to 20 mm thick, the pad effectively absorbs external vibrations. Furthermore, the non-slip texture on the pad enhances the stability of the device during placement, making it particularly suitable for on-site testing in complex industrial environments.

[0039] It can be seen from the above steps that the present invention realizes non-contact detection of the sample to be tested through laser-induced breakdown spectroscopy technology, avoiding the complicated sample pretreatment process in the traditional method. The design of the adjustment component 5 and the fixed bracket 4 enables the position of the laser emission module 2 and the spectrum acquisition module 3 to be flexibly adjusted to adapt to samples to be tested of different sizes and shapes. The combination of the focusing lens group 7, the receiving optical fiber 8 and the filter 25 optimizes the efficiency of collecting and processing the optical signal, while the shock-absorbing pad 26 further enhances the anti-interference ability of the equipment. These designs together ensure the accuracy, reliability and efficiency of the test results, and solve the problems of low detection efficiency and high environmental requirements existing in the prior art.

[0040] Any details not described in the specification are prior art known to those skilled in the art, and the model parameters of the electrical components are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are prior art and are not shown in the figures, so they will not be described in detail here.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Real-time measurement equipment for alloy slag purity integrating laser-induced breakdown spectroscopy, characterized by: The invention comprises a measuring main structure (1), wherein the measuring main structure (1) comprises a laser emitting module (2) and a spectrum acquisition module (3), wherein the laser emitting module (2) is connected to the spectrum acquisition module (3) via a fixed bracket (4), and an adjusting component (5) is provided at the bottom of the spectrum acquisition module (3), wherein the adjusting component (5) is used to adjust the relative position between the spectrum acquisition module (3) and a sample to be measured, and a sliding support member (6) is provided inside the adjusting component (5).

2. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 1 is characterized in that: The fixed bracket (4) includes a support plate (11), the top of the support plate (11) is provided with two parallel guide grooves (12), a slider (13) is provided in the guide groove (12), the slider (13) is fixedly connected to the bottom of the laser emission module (2), the slider (13) is connected to the support plate (11) through a threaded rod (14), and a hand wheel (15) is provided at one end of the threaded rod (14).

3. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 1 is characterized in that: The adjusting assembly (5) includes a base (16), a lifting platform (17) is provided on the top of the base (16), a mounting plate (18) is fixedly connected to the top of the lifting platform (17), guide columns (19) are provided on both sides of the mounting plate (18), the guide columns (19) pass through the lifting platform (17) and are fixedly connected to the base (16), a driving motor (20) is provided at the bottom of the lifting platform (17), a screw (21) is provided on the output shaft of the driving motor (20), and the screw (21) is threadedly connected to the lifting platform (17).

4. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 1 is characterized in that: The sliding support member (6) includes a slide rail (22), the slide rail (22) is fixed to the top of the base (16), and sliders (13) are provided on both sides of the slide rail (22). The sliders (13) are fixedly connected to the bottom of the mounting plate (18), and a ball bearing (23) is provided inside the slider (13), and the ball bearing (23) is in contact with the slide rail (22).

5. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 1 is characterized in that: The spectrum acquisition module (3) comprises a focusing lens group (7), a receiving optical fiber (8) is provided at the front end of the focusing lens group (7), a spectrum analyzer (9) is provided at the end of the receiving optical fiber (8), and the focusing lens group (7) comprises a plurality of convex lenses arranged in sequence, with spacer rings (24) provided between the convex lenses.

6. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 5 is characterized in that: An optical filter (25) is provided at the end of the receiving optical fiber (8).

7. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 1 is characterized in that: The laser emission module (2) comprises a laser generator (10), the output end of the laser generator (10) is provided with a focusing lens, and the focus of the focusing lens is located on the surface of the sample to be measured.

8. The real-time measurement device for alloy slag purity integrating laser-induced breakdown spectroscopy according to claim 3 is characterized in that: A shock-absorbing pad (26) is provided at the bottom of the base (16). The shock-absorbing pad (26) is made of rubber material, and the thickness of the shock-absorbing pad (26) is 10 mm to 20 mm.

Images