Automatic weighing device for iron ore grade testing and mine car scale

Abstract

This utility model belongs to the field of iron ore technology, and particularly relates to an automatic weighing device for iron ore grade detection in mining trucks. It includes two bases, two weighing sensors, and a laser-induced breakdown spectrometer. It also includes: two fixing bars, each fixedly installed on the top of one of the two bases, with a weighing platform fixedly installed between the two fixing bars; two weighing sensors, respectively fixedly installed on the bottom of the two weighing platforms and fixedly connected to the two bases; two weighing rails fixedly installed on the top of the weighing platform, with guide rails fixedly installed at both ends of each weighing rail; and a fixing frame, fixedly installed on the top of the two bases, with a sliding plate slidably installed inside the fixing frame. The laser-induced breakdown spectrometer can cover different areas of the material surface, avoiding misjudgments of composition caused by local segregation or surface impurities. It also allows for the installation and disassembly of the fixing columns without the need for manual tools, enabling rapid switching of detection modules.

Description

Technical Field

[0001] This utility model belongs to the field of iron ore technology, and in particular relates to an automatic weighing device for iron ore grade detection in mining carts. Background Technology

[0002] Iron ore is a general term for iron-bearing minerals and a core raw material for the steel industry. Its main components are iron oxide compounds, with common types including magnetite, hematite, and limonite. High-quality iron ore has a high iron content and few impurities. Through crushing, grinding, and smelting processes, pig iron can be extracted and further processed into various types of steel. It is widely distributed globally and is a key mineral resource supporting industries such as machinery manufacturing and infrastructure.

[0003] Existing methods for weighing and grade detection of iron ore have several drawbacks. For example, the laser-induced breakdown spectrometer (LASDS) used for grade detection has a fixed height, making it difficult to cover different areas of the material surface. This can lead to misclassification due to localized segregation or surface impurities, resulting in insufficient representativeness. Furthermore, LASDS may be damaged in harsh environments, requiring manual disassembly and reassembly by operators, hindering rapid switching of detection modules and reducing detection efficiency. Therefore, we propose an automatic weighing device for iron ore grade detection on mine carts. Utility Model Content

[0004] The purpose of this invention is to provide an automatic weighing device for iron ore grade detection in mining trucks, in order to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides an automatic weighing device for iron ore grade detection in mine carts, comprising two bases, two weighing sensors, and a laser-induced breakdown spectrometer, and further comprising:

[0006] Two fixing bars are fixedly installed on the top of two bases, and a weighing platform is fixedly installed between the two fixing bars. Two weighing sensors are fixedly installed on the bottom of the two weighing platforms and are fixedly connected to the two bases respectively. Two weighing rails are fixedly installed on the top of the weighing platform, and guide rails are fixedly installed at both ends of the two weighing rails.

[0007] A fixed frame is fixedly installed on the top of two bases. A sliding plate is slidably installed inside the fixed frame. A fixed column is inserted into the bottom of the sliding plate. The laser-induced breakdown spectrometer is fixedly installed at the bottom end of the fixed column.

[0008] A lifting assembly, located within a fixed frame, is used to drive the sliding plate to slide.

[0009] A fixing component is located within the sliding plate and is used to fix the position of the fixing column.

[0010] In this technical solution, the mine car is driven onto the weighing track via a guide rail. The mine car then passes through the weighing track and the weighing platform. The weighing sensor realizes the automatic weighing of the mine car. The laser-induced breakdown spectrometer first emits a high-energy pulsed laser and focuses it on the surface of the ore, instantly heating the local area of ​​the ore to an ultra-high temperature, causing it to evaporate and ionize to form plasma. Subsequently, the atoms and ions in the plasma that are in an excited state transition to a lower energy level, releasing photons with characteristic wavelengths specific to each element and forming a characteristic spectrum. Finally, the spectrometer collects and analyzes the spectrum, identifies the type of element based on the characteristic spectral "fingerprint", and then calculates the content through the spectral intensity, thereby obtaining the proportion of iron element in the iron ore, i.e., the grade.

[0011] The lifting components can be used to move the sliding plate downwards. The sliding plate can then drive the laser-induced breakdown spectrometer to adjust its height and horizontal position, thus covering different areas of the material surface and avoiding misjudgments of composition caused by local segregation or surface impurities.

[0012] When installing the laser-induced breakdown spectrometer, first insert the fixing post into the sliding plate. The fixing post can be installed and removed using the set fixing components without the need for manual tools. This allows for rapid switching of detection modules, improving detection efficiency and reducing the time the instrument is exposed to harsh environments, thus lowering the probability of equipment damage.

[0013] In the above technical solution, the lifting component further includes:

[0014] A sliding groove is formed inside a sliding plate. A cylinder is fixedly installed inside the sliding groove. A rectangular plate is fixedly installed at the telescopic end of the cylinder. Two first guide grooves are formed at the top of the rectangular plate. Guide posts are slidably installed in each of the two first guide grooves. Sliding blocks are fixedly installed at the top of each of the two guide posts. Connecting rods are rotatably installed at the upper ends of each of the two sliding blocks. Both connecting rods are rotatably connected to the fixed frame.

[0015] In this technical solution, the operator first starts the cylinder. The extension end of the cylinder drives the rectangular plate to slide. The rectangular plate drives the guide column to slide through the inclined first guide groove. The guide column drives the sliding block to slide. The sliding block drives the connecting rod to rotate. The connecting rod drives the sliding plate to slide downward. The sliding plate drives the laser-induced breakdown spectrometer to complete the height and horizontal position adjustment, which can cover different areas of the material surface and avoid misjudgment of composition caused by local segregation or surface impurities.

[0016] In the above technical solution, the fixing component further includes:

[0017] Two second guide grooves are provided, both of which are formed within the fixed post. A limit post is slidably installed within each of the two second guide grooves. Both limit posts are fixedly connected to the sliding plate. A limit groove is formed within the sliding plate on one side of the fixed post. Two fixed rods are fixedly installed within the limit groove. The same limit rod is slidably installed on both fixed rods. A spring is sleeved on each of the two fixed rods. One end of the limit rod passes through the limit groove and extends into the fixed post, and the limit rod is inserted into the fixed post.

[0018] In this technical solution, when installing the laser-induced breakdown spectrometer, the fixing post is first inserted into the sliding plate, and the two limiting posts are respectively inserted into the two second guide grooves. Then, the fixing post is rotated so that the two limiting posts slide in the two second guide grooves. The limiting posts, in conjunction with the second guide grooves, position the fixing post. The spring drives the limiting rod to slide along the fixing rod. The limiting rod can be quickly inserted into or disengaged from the fixing post without the need for manual disassembly by personnel. This enables rapid switching of detection modules, which improves detection efficiency, reduces the time the instrument is exposed to harsh environments, and lowers the probability of equipment damage.

[0019] In the above technical solution, two first guide rods are fixedly installed in the sliding groove, one end of each of the two first guide rods penetrates through a rectangular plate, and the rectangular plate is slidably connected to the two first guide rods. Two second guide rods are fixedly installed on the fixing frame, the upper ends of each of the two second guide rods penetrate through a sliding plate, and the sliding plate is slidably connected to the two second guide rods.

[0020] In this technical solution, it is ensured that the rectangular plate can slide stably on the two first guide rods, and that the sliding plate can slide stably on the two second guide rods.

[0021] In the above technical solution, the rectangular plate and the two sliding blocks are slidably connected to the sliding groove, and the limiting rod is slidably connected to the limiting groove.

[0022] In this technical solution, it is ensured that the rectangular plate and the two sliding blocks can slide stably within the sliding groove, and the limiting rod can slide stably within the limiting groove.

[0023] In the above technical solution, the second guide groove is further L-shaped.

[0024] In this technical solution, the limiting post, in conjunction with the second guide groove, can pre-position the fixed post.

[0025] In the above technical solution, the first guide groove is further arranged at an angle.

[0026] In this technical solution, the rectangular plate is ensured to slide through the inclined first guide groove, which drives the guide column to slide.

[0027] The beneficial effects of this utility model are:

[0028] 1. This automatic weighing device for iron ore grade detection can drive a sliding plate downward through a lifting component. The sliding plate drives a laser-induced breakdown spectrometer to complete the height and horizontal position adjustment, which can cover different areas of the material surface and avoid misjudgment of composition caused by local segregation or surface impurities.

[0029] 2. When installing a laser-induced breakdown spectrometer, the automatic weighing device for iron ore grade testing first inserts the fixing column into the sliding plate. The fixing column can be installed and disassembled through the set fixing components without the need for manual tools. This enables rapid switching of the detection module, which improves detection efficiency, reduces the time the instrument is exposed to harsh environments, and lowers the probability of equipment damage. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the weighing platform area structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing frame of this utility model;

[0033] Figure 4 This is one of the schematic diagrams of the cross-sectional structure of the sliding plate of this utility model;

[0034] Figure 5 This is one of the schematic diagrams of a partial explosion structure of this utility model;

[0035] Figure 6 This is the second schematic diagram of the cross-sectional structure of the sliding plate of this utility model;

[0036] Figure 7 This is the second schematic diagram of the partial explosion structure of this utility model;

[0037] Figure 8 This is the third schematic diagram of the cross-sectional structure of the sliding plate of this utility model;

[0038] Figure 9 This is the utility model Figure 8 Enlarged structural diagram at point A in the middle.

[0039] The markings in the diagram are as follows:

[0040] 1. Base; 2. Fixing bar; 3. Weighing platform; 4. Weighing sensor; 5. Weighing rail; 6. Guide rail; 7. Fixing frame; 8. Sliding plate; 9. Fixing column; 10. Laser-induced breakdown spectrometer; 11. Sliding groove; 12. Cylinder; 13. Rectangular plate; 14. First guide groove; 15. Guide column; 16. Sliding block; 17. Connecting rod; 18. Second guide groove; 19. Limiting column; 20. Limiting groove; 21. Limiting rod; 22. Fixing rod; 23. Spring; 24. First guide rod; 25. Second guide rod. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1 - Figure 9 This application will be described in further detail.

[0042] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0043] Example 1: This example provides an automatic weighing device for iron ore grade detection in mine carts, including two bases 1, two weighing sensors 4, and a laser-induced breakdown spectrometer 10, and also includes:

[0044] Two fixing bars 2 are fixedly installed on the top of two bases 1. A weighing platform 3 is fixedly installed between the two fixing bars 2. Two weighing sensors 4 are fixedly installed at the bottom of the two weighing platforms 3 respectively, and the two weighing sensors 4 are fixedly connected to the two bases 1 respectively. Two weighing rails 5 are fixedly installed on the top of the weighing platform 3, and guide rails 6 are fixedly installed at both ends of the two weighing rails 5.

[0045] The fixed frame 7 is fixedly installed on the top of the two bases 1. A sliding plate 8 is slidably installed inside the fixed frame 7. A fixed column 9 is inserted and installed at the bottom of the sliding plate 8. The laser-induced breakdown spectrometer 10 is fixedly installed at the bottom of the fixed column 9.

[0046] The lifting assembly is located inside the fixed frame 7 and is used to drive the sliding plate 8 to slide.

[0047] A fixing component is located inside the sliding plate 8 and is used to fix the position of the fixing post 9.

[0048] In this process, the mine car enters the weighing track 5 via the guide rail 6. The mine car then passes through the weighing track 5 and the weighing platform 3. The weighing sensor 4 realizes the automatic weighing of the mine car. The laser-induced breakdown spectrometer 10 first emits a high-energy pulsed laser and focuses it on the surface of the ore, instantly heating the local area of ​​the ore to an ultra-high temperature, causing it to evaporate and ionize to form plasma. Subsequently, the atoms and ions in the plasma that are in an excited state transition to a lower energy level, releasing photons with characteristic wavelengths specific to each element and forming a characteristic spectrum. Finally, the spectrometer collects and analyzes the spectrum, identifies the type of element based on the characteristic spectral "fingerprint", and then calculates the content through the spectral intensity, thereby obtaining the proportion of iron element in the iron ore, i.e., the grade.

[0049] The lifting component can drive the sliding plate 8 to slide downwards. The sliding plate 8 drives the laser-induced breakdown spectrometer 10 to complete the height and horizontal position adjustment, which can cover different areas of the material surface and avoid misjudgment of composition caused by local segregation or surface impurities.

[0050] When the laser-induced breakdown spectrometer 10 needs to be installed, the fixing post 9 is first inserted into the sliding plate 8. The fixing post 9 can be installed and removed through the set fixing components. No manual tools are required for disassembly and assembly. This enables rapid switching of detection modules, which not only improves detection efficiency but also reduces the time the instrument is exposed to harsh environments and lowers the probability of equipment damage.

[0051] In this embodiment, the lifting assembly includes:

[0052] A sliding groove 11 is formed inside a sliding plate 8. A cylinder 12 is fixedly installed inside the sliding groove 11. A rectangular plate 13 is fixedly installed at the telescopic end of the cylinder 12. Two first guide grooves 14 are formed at the top of the rectangular plate 13. Guide posts 15 are slidably installed in each of the two first guide grooves 14. Sliding blocks 16 are fixedly installed at the top of each of the two guide posts 15. Connecting rods 17 are rotatably installed at the upper ends of each of the two sliding blocks 16. Both connecting rods 17 are rotatably connected to the fixed frame 7.

[0053] The process begins with the operator activating cylinder 12. The telescopic end of cylinder 12 causes rectangular plate 13 to slide. Rectangular plate 13 then drives guide post 15 to slide via inclined first guide groove 14. Guide post 15 drives sliding block 16 to slide. Sliding block 16 drives connecting rod 17 to rotate. Connecting rod 17 drives sliding plate 8 to slide downward. Sliding plate 8 drives laser-induced breakdown spectrometer 10 to complete height and horizontal position adjustment, which can cover different areas of the material surface and avoid misjudgment of composition caused by local segregation or surface impurities.

[0054] In this embodiment, the fixing component includes:

[0055] Two second guide grooves 18 are provided, both of which are opened in the fixed post 9. Limiting posts 19 are slidably installed in both second guide grooves 18. Both limiting posts 19 are fixedly connected to the sliding plate 8. A limiting groove 20 is provided in the sliding plate 8 and on one side of the fixed post 9. Two fixed rods 22 are fixedly installed in the limiting groove 20. The same limiting rod 21 is slidably installed on the two fixed rods 22. Springs 23 are sleeved on both fixed rods 22. One end of the limiting rod 21 passes through the limiting groove 20 and extends into the fixed post 9. The limiting rod 21 is inserted into the fixed post 9.

[0056] When installing the laser-induced breakdown spectrometer 10, the fixing post 9 is first inserted into the sliding plate 8, and the two limiting posts 19 are respectively inserted into the two second guide grooves 18. Then, the fixing post 9 is rotated so that the two limiting posts 19 slide in the two second guide grooves 18 respectively. The limiting posts 19 cooperate with the second guide grooves 18 to position the fixing post 9. The spring 23 drives the limiting rod 21 to slide along the fixing rod 22. The limiting rod 21 can be quickly inserted into or disengaged from the fixing post 9 without the need for personnel to use hand tools for disassembly and assembly. This enables rapid switching of detection modules, which not only improves detection efficiency but also reduces the time the instrument is exposed to harsh environments and lowers the probability of equipment damage.

[0057] Example 2:

[0058] This embodiment provides an automatic weighing device for iron ore grade detection in mine carts. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0059] In this embodiment, two first guide rods 24 are fixedly installed in the sliding groove 11. One end of each of the two first guide rods 24 passes through the rectangular plate 13. The rectangular plate 13 is slidably connected to the two first guide rods 24. Two second guide rods 25 are fixedly installed on the fixing frame 7. The upper ends of each of the two second guide rods 25 pass through the sliding plate 8. The sliding plate 8 is slidably connected to the two second guide rods 25.

[0060] Specifically, this ensures that the rectangular plate 13 can slide stably on the two first guide rods 24, and that the sliding plate 8 can slide stably on the two second guide rods 25.

[0061] Example 3:

[0062] This embodiment provides an automatic weighing device for iron ore grade detection in mine carts. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0063] In this embodiment, the rectangular plate 13 and the two sliding blocks 16 are slidably connected to the sliding groove 11, and the limiting rod 21 is slidably connected to the limiting groove 20.

[0064] Specifically, this ensures that the rectangular plate 13 and the two sliding blocks 16 can slide stably within the sliding groove 11, and that the limiting rod 21 can slide stably within the limiting groove 20.

[0065] Example 4:

[0066] This embodiment provides an automatic weighing device for iron ore grade detection in mine carts. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0067] In this embodiment, the second guide groove 18 is L-shaped.

[0068] The limiting post 19, in conjunction with the second guide groove 18, can pre-position the fixed post 9.

[0069] Example 5:

[0070] This embodiment provides an automatic weighing device for iron ore grade detection in mine carts. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0071] In this embodiment, the first guide groove 14 is inclined.

[0072] Specifically, the rectangular plate 13 is designed to allow the guide post 15 to slide through the inclined first guide groove 14.

[0073] Working principle: The mine car enters the weighing track 5 via the guide rail 6. The mine car then passes through the weighing track 5 and the weighing platform 3. The weighing sensor 4 realizes the automatic weighing of the mine car. The laser-induced breakdown spectrometer 10 first emits a high-energy pulsed laser and focuses it on the surface of the ore, instantly heating the local area of ​​the ore to an ultra-high temperature, causing it to evaporate and ionize to form plasma. Then, the atoms and ions in the excited state in the plasma transition to a lower energy level, releasing photons with characteristic wavelengths specific to each element and forming a characteristic spectrum. Finally, the spectrometer collects and analyzes the spectrum, identifies the type of element based on the characteristic spectral "fingerprint", and calculates the content through the spectral intensity, thereby obtaining the proportion of iron element in the iron ore, i.e., the grade.

[0074] The operator first starts cylinder 12. The telescopic end of cylinder 12 drives rectangular plate 13 to slide. Rectangular plate 13 drives guide column 15 to slide through the inclined first guide groove 14. Guide column 15 drives sliding block 16 to slide. Sliding block 16 drives connecting rod 17 to rotate. Connecting rod 17 drives sliding plate 8 to slide down along second guide rod 25. Sliding plate 8 drives laser-induced breakdown spectrometer 10 to complete the height and horizontal position adjustment, which can cover different areas of the material surface and avoid misjudgment of composition caused by local segregation or surface impurities.

[0075] When installing the laser-induced breakdown spectrometer 10, first insert the fixing post 9 into the sliding plate 8, and simultaneously insert the two limiting posts 19 into the two second guide grooves 18 respectively. Then rotate the fixing post 9 so that the two limiting posts 19 slide in the two second guide grooves 18 respectively. The limiting posts 19 cooperate with the second guide grooves 18 to position the fixing post 9. The spring 23 drives the limiting rod 21 to slide along the fixing rod 22. The limiting rod 21 can be quickly inserted into or disengaged from the fixing post 9 without the need for personnel to use hand tools for disassembly and assembly. This enables rapid switching of detection modules, which not only improves detection efficiency but also reduces the time the instrument is exposed to harsh environments and lowers the probability of equipment damage.

[0076] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An automatic weighing device for iron ore grade detection in mining trucks, comprising two bases (1), two weighing sensors (4), and a laser-induced breakdown spectrometer (10), characterized in that, Also includes: Two fixing bars (2) are fixedly installed on the top of two bases (1). A weighing platform (3) is fixedly installed between the two fixing bars (2). Two weighing sensors (4) are fixedly installed at the bottom of the two weighing platforms (3) respectively, and the two weighing sensors (4) are fixedly connected to the two bases (1) respectively. Two weighing rails (5) are fixedly installed on the top of the weighing platform (3). Guide rails (6) are fixedly installed at both ends of the two weighing rails (5). A fixed frame (7) is fixedly installed on the top of two bases (1). A sliding plate (8) is slidably installed inside the fixed frame (7). A fixed column (9) is inserted into the bottom of the sliding plate (8). The laser-induced breakdown spectrometer (10) is fixedly installed at the bottom end of the fixed column (9). A lifting assembly, which is located inside the fixed frame (7) and is used to drive the sliding plate (8) to slide; A fixing component is located inside the sliding plate (8) and is used to fix the position of the fixing post (9).

2. The automatic weighing device for iron ore grade detection ore carts according to claim 1, characterized in that, The lifting assembly includes: A sliding groove (11) is formed inside a sliding plate (8). A cylinder (12) is fixedly installed inside the sliding groove (11). A rectangular plate (13) is fixedly installed at the telescopic end of the cylinder (12). Two first guide grooves (14) are formed on the top of the rectangular plate (13). Guide posts (15) are slidably installed in both first guide grooves (14). Sliding blocks (16) are fixedly installed at the top of both guide posts (15). Connecting rods (17) are rotatably installed at the upper ends of both sliding blocks (16). Both connecting rods (17) are rotatably connected to the fixed frame (7).

3. The automatic weighing device for iron ore grade detection ore carts according to claim 2, characterized in that, The fixing component includes: Two second guide grooves (18) are provided, both of which are located within the fixed post (9). Limiting posts (19) are slidably installed within each of the two second guide grooves (18). Both limiting posts (19) are fixedly connected to the sliding plate (8). A limiting groove (20) is provided within the sliding plate (8) and on one side of the fixed post (9). Two fixed rods (22) are fixedly installed within the limiting groove (20). The same limiting rod (21) is slidably installed on each of the two fixed rods (22). A spring (23) is sleeved on each of the two fixed rods (22). One end of the limiting rod (21) passes through the limiting groove (20) and extends into the fixed post (9). The limiting rod (21) is inserted into the fixed post (9).

4. The automatic weighing device for iron ore grade detection ore carts according to claim 2, characterized in that, Two first guide rods (24) are fixedly installed in the sliding groove (11). One end of each of the two first guide rods (24) passes through a rectangular plate (13). The rectangular plate (13) is slidably connected to the two first guide rods (24). Two second guide rods (25) are fixedly installed on the fixing frame (7). The upper ends of each of the two second guide rods (25) pass through a sliding plate (8). The sliding plate (8) is slidably connected to the two second guide rods (25).

5. The automatic weighing device for iron ore grade detection ore carts according to claim 3, characterized in that, The rectangular plate (13) and the two sliding blocks (16) are slidably connected to the sliding groove (11), and the limiting rod (21) is slidably connected to the limiting groove (20).

6. The automatic weighing device for iron ore grade detection ore carts according to claim 3, characterized in that, The second guide groove (18) is L-shaped.

7. The automatic weighing device for iron ore grade detection ore carts according to claim 2, characterized in that, The first guide groove (14) is inclined.

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