A mineral spectrum analysis device and analysis method

Abstract

The present application belongs to the technical field of mineral spectrum analysis, and particularly relates to a mineral spectrum analysis device and method. The device comprises a casing, a sample preparation unit, a sample transfer unit and a spectrum detection unit. The crushed mineral powder to be detected is placed in the sample preparation cup of the sample preparation unit. The mineral powder can be vibrated by the vibrating rod. The vibrated mineral powder can be discharged through the sample discharge mechanism below the sample preparation cup to the sample loading mechanism to form a powder layer sample. This design not only simplifies the sample preparation, but also facilitates continuous multiple sample preparation and detection. In combination with the vibration of the mineral powder, the composition distribution uniformity, authenticity and reliability of the sample can be improved, the detection accuracy and efficiency are improved, and the composition detection deviation is eliminated. At the same time, the device is portable, and the sample preparation process does not need to rely on large instruments such as a tablet pressing mechanism, which can adapt to field or on-site sample preparation and detection requirements, and solves the problems existing in the prior art.

Description

Technical Field

[0001] This invention relates to the field of mineral spectral analysis technology, and in particular to a mineral spectral analysis device and analysis method. Background Technology

[0002] Traditional spectroscopic analysis devices primarily utilize high-energy X-rays to excite samples when detecting the composition of minerals such as tourmaline. This requires first preparing the mineral sample into powder, then mixing the powder with a binder (microcrystalline cellulose or boric acid), pressing it into smooth discs in a tablet press, and finally placing it into the spectroscopic analysis device. The elemental composition is determined by detecting the energy and intensity of the emitted characteristic X-rays.

[0003] However, due to the complex chemical composition of tourmaline, the prepared sheet-like samples may contain different mineral particles or micro-regions, resulting in unrepresentative samples. This leads to large deviations in component detection and makes repeated sample preparation and analysis impossible. Furthermore, the preparation process for sheet-like samples is cumbersome, requires bulky equipment, and is inconvenient to carry, making it unsuitable for field or on-site testing needs. Summary of the Invention

[0004] The purpose of this invention is to provide a novel mineral spectral analysis device that enables continuous sample preparation, detection, and analysis with high sample authenticity and reliability. While improving detection accuracy, it also eliminates component detection bias. Furthermore, the device is portable and can adapt to field or on-site sample preparation and detection needs, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] On one hand, the present invention proposes a mineral spectral analysis device, comprising:

[0007] The housing has two working spaces, a first working space and a second working space, separated by a partition plate. The partition plate has a through-type channel opening at its bottom or near its own bottom.

[0008] A sample preparation unit is provided within one of the working spaces, namely, working space one and working space two. The sample preparation unit includes a sample preparation cup and a tamping device. The sample preparation cup contains the mineral powder to be tested. The tamping device is located above the sample preparation cup and is used to tamp the mineral powder to disperse it and ensure uniform component distribution. The bottom of the sample preparation cup is also equipped with a sample discharge mechanism that discharges the tamped mineral powder.

[0009] The sample transfer unit includes a sample carrying mechanism and a transfer mechanism. The sample carrying mechanism can receive the mineral powder discharged by the sample discharging mechanism and spray a sealing layer onto the mineral powder to form a powder layer sample. The transfer mechanism can transfer the sample carrying mechanism between the working space one and the working space two through the through-type channel opening.

[0010] A spectral detection unit is disposed in the other of the first and second workspaces, and the spectral detection unit is capable of performing spectral analysis and detection on the powder layer sample on the sample carrier.

[0011] In some embodiments, the tamping component includes a horizontal guide rail, a transfer plate, a positioning plate, a lead screw, a rotating seat, a support arm, and a vibrating rod, wherein:

[0012] The horizontal guide rail is disposed on the partition plate, and the transfer plate is slidably mounted on the horizontal guide rail; the transfer plate is connected to a drive source to drive the transfer plate to slide along the horizontal guide rail;

[0013] The lead screw is vertically rotatably connected to the end face of the transfer plate away from the partition plate, and the lead screw is perpendicular to the horizontal guide rail;

[0014] The positioning plate is slidably connected to the transfer plate, the lead screw passes through the vertical direction of the positioning plate and is threadedly connected to the positioning plate, and a motor is connected to the top of the lead screw to drive the positioning plate to adjust its height relative to the transfer plate.

[0015] The rotating seat is fixed to the end face of the positioning plate away from the transfer plate, and the support arm is rotatably connected to the rotating seat; the vibrating rod is disposed on the support arm and is used to extend into the sample cup to internally vibrate the mineral powder; at least one of the rotating seat and the transfer plate can adjust the angle of the vibrating rod relative to the sample cup during the vibration process.

[0016] In some embodiments, the tamping component further includes an end cap that can be sealed to the mouth of the sample preparation cup; the end cap has a mounting hole, the tamping rod passes through the mounting hole, and is rotatably engaged with the mounting hole via a roller.

[0017] In some embodiments, the end cap has multiple mounting holes, and multiple vibrating rods are equidistantly arranged on the support arm along the extension direction of the horizontal guide rail, with each vibrating rod corresponding to one of the mounting holes.

[0018] In some embodiments, the through-passage entrance is also equipped with an openable and closable airtight door.

[0019] In some embodiments, the transfer mechanism includes a guide rail, a sliding seat, a transfer drive, and an upper plate, wherein:

[0020] The guide rail frame is located inside the lower part of the machine housing and is perpendicular to the horizontal guide rail and the lead screw; the guide rail frame passes through the through-type channel opening and spans between the first workspace and the second workspace.

[0021] The sliding seat is slidably mounted on the guide rail frame and connected to the transfer drive. The transfer drive is used to drive the sliding seat to move along the guide rail frame, so as to drive the sample carrier mechanism to transfer between the workspace one and the workspace two.

[0022] The upper end face of the sliding seat is vertically fixed with multiple brackets, which are arranged on both sides. Support plates are horizontally connected between the brackets on the same side.

[0023] The upper plate is arranged parallel above the sliding seat, and a mounting groove is provided in the middle of the upper plate, and the sample cup is detachably fixed in the mounting groove;

[0024] The sample-carrying mechanism is disposed between the upper plate and the sliding seat. A slide rail is fixed parallel to the upper end face of the sliding seat and is parallel to the guide rail frame. The sample-carrying mechanism is slidably connected to the slide rail. The sample-carrying mechanism is connected to a sample-carrying drive, which is used to drive the sample-carrying mechanism to move along the slide rail.

[0025] In some embodiments, the sample dispensing mechanism includes a sample dispensing plate and sand holes opened at the bottom of the sample preparation cup. The bottom of the sample preparation cup is provided with a double-layer cup bottom arranged vertically. Multiple sand holes are opened on any layer of the cup bottom, and the sand holes are distributed in a straight line along the radial direction of the sample preparation cup.

[0026] The sample distribution plate is rotatably installed between the two layers of the cup bottom. The sample distribution plate has two sets of through holes. Each set of through holes includes two through hole areas arranged along a single radial direction of the sample distribution plate and symmetrical about the center of the sample distribution plate. The through hole areas of the two sets of through holes are vertically distributed. The diameter of one set of through holes is larger than the diameter of the other set of through holes.

[0027] The outer ring of the sample distribution plate is provided with a toothed ring. A notch is opened on the side wall between the two cup bottoms of the sample preparation cup to expose the toothed ring. A sample distribution motor is provided below the upper plate near the notch. The output end of the sample distribution motor is coaxially connected to a drive gear. The drive gear meshes with the toothed ring at the notch position to drive the sample distribution plate to rotate and switch different sets of through holes to align with the sand holes.

[0028] In some embodiments, the upper plate is connected above the support plate by a vibration mechanism, the vibration mechanism including a connecting shaft, a coupling frame and an ultrasonic vibrator. Two connecting shafts are symmetrically and vertically arranged on each support plate. The upper end of the connecting shaft is fixed with a coupling frame, and the top end of each coupling frame is rotatably connected to the four corners of the upper plate respectively. A support spring is sleeved on the connecting shaft.

[0029] The ultrasonic vibrator is vertically fixed on one side of each of the connecting shafts on the support plate. The output end of the ultrasonic vibrator is fixed to the connecting shaft and can vibrate the mineral powder in the sample preparation cup.

[0030] In some embodiments, the sample carrier includes a preparation chamber, a fixing clamp, a frame, an airflow seat, an air guide cylinder, and a spraying pipe, wherein:

[0031] The upper surface of the preparation chamber is provided with a sand drop trough. Two fixed clamps are provided and symmetrically distributed in the preparation chamber. A carbon tape parallel to the horizontal guide rail is connected between the two fixed clamps. The carbon tape is located directly below the sand drop trough and can adhere and collect the mineral powder falling in the sand drop trough and form a powder layer on the tape surface.

[0032] The frame is vertically mounted above the carbon tape, and both ends of the frame are slidably installed in the preparation chamber. A support plate is fixed to the lower end face of the frame, and the carbon tape is located between the two support plates. A support roller with a convex center and pointed ends is rotatably connected between the two support plates. The support roller is located below the carbon tape, can support the carbon tape, and rolls with the carbon tape. The frame is connected to a frame drive, which can drive the frame to move along the length of the carbon tape.

[0033] The airflow seat is embedded and fixed in the frame. An air guide plate is installed on the lower end face of the airflow seat. Several air holes are distributed on the lower end face of the air guide plate. The air guide cylinder is horizontally set on the frame, and one end of the air guide cylinder is connected to the airflow seat. An airflow channel is opened in the air guide cylinder. An air inlet is provided at the other end of the air guide cylinder. The air guide cylinder can deliver airflow to the airflow seat through the airflow channel so that the airflow is sprayed downward through the air holes to blow away excess mineral powder on the surface of the carbon tape.

[0034] The spraying tube is disposed in the airflow channel, and one end of the spraying tube is connected to an adapter. The spraying tube can perform nano-carbon film spraying on the powder layer that has been blown off on the carbon tape to form the powder layer sample.

[0035] In some embodiments, the sample carrying mechanism further includes a lifting unit and a positioning pressure plate. The lifting unit is fixed on the frame, and the positioning pressure plate is vertically connected below the lifting unit. The positioning pressure plate is located behind the support roller and can press the powder layer sample after it has been blown and coated.

[0036] In some embodiments, the frame is also equipped with a screening device for the detection section.

[0037] In some embodiments, the detection section screening device includes an image acquisition device and a data processor.

[0038] On the other hand, the present invention proposes a mineral spectral analysis method using the aforementioned mineral spectral analysis apparatus, wherein a detection section screening device is also provided on the frame, and the mineral spectral analysis method includes:

[0039] The mineral powder to be tested is placed in the sample preparation cup, and the mineral powder in the sample preparation cup is vibrated by at least one of the ultrasonic vibrator and the vibrating rod;

[0040] The carbon tape is used to adhere and collect the mineral powder falling into the sand drop trough, so as to form a powder layer on the surface of the carbon tape.

[0041] The frame is driven to slide along the length of the carbon tape to blow away excess mineral powder from the surface of the carbon tape during the sliding process. At the same time, the integrity of the powder layer after blowing is tested by the screening device of the detection section. If the powder layer is found to be completely spread on the surface of the carbon tape, it is selected as the detection section, and the powder layer of the detection section is subjected to nano-carbon film spraying and pressing to form the powder layer sample.

[0042] After all the detection segments are screened out by the carbon tape, the entire sample carrier is moved to the workspace of the spectral detection unit via the guide rail frame, and the spectral detection unit performs spectral analysis on each detection segment on the surface of the carbon tape in sequence.

[0043] The present invention achieves the following technical effects compared to the prior art:

[0044] The mineral spectral analysis device of this invention places the pulverized mineral powder into a sample preparation cup. A vibrating rod is used to agitate the powder, which then flows through a sample dispensing mechanism below the cup towards a sample loading mechanism, forming a powder layer sample. This design not only simplifies sample preparation but also facilitates repeated sample preparation and testing. Combined with the agitation of the mineral powder, it improves the uniformity, accuracy, and reliability of the sample's component distribution, enhancing detection accuracy and efficiency while eliminating component detection bias. Furthermore, the device is portable, eliminating the need for large equipment such as tablet pressing mechanisms during sample preparation, making it suitable for field or on-site sample preparation and testing needs, and solving the problems of existing technologies.

[0045] In some technical solutions of the present invention, the sample carrier mechanism uses the adhesiveness of carbon tape to collect the falling mineral powder. With the blowing of the air guide cylinder, a uniform and complete mineral powder sample layer can be formed on the surface of the carbon tape. Combined with the coating of the spray tube and the pressing and forming of the pressure plate, a reliable strip mineral sample can be formed, which is suitable for continuous sample preparation and testing.

[0046] The mineral spectral analysis method of the present invention, implemented using the aforementioned mineral spectral analysis device, not only achieves continuous sample preparation and testing, but also performs integrity testing on the purged powder layer through a screening device in the detection section. This allows for the removal of segments that do not meet the testing requirements, while only the powder layer that is completely spread on the surface of the carbon tape is coated, pressed, and tested. This avoids the energy waste and process consumption of coating, pressing, and testing unqualified samples, improving the reliability and accuracy of testing, while also increasing the efficiency of mineral spectral analysis. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a schematic diagram of the overall structure of the mineral spectral analysis device disclosed in an embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of the sample preparation unit disclosed in an embodiment of the present invention;

[0050] Figure 3 This is an assembly diagram of the sample preparation unit and sample transfer unit disclosed in an embodiment of the present invention;

[0051] Figure 4 This is a schematic diagram of the sample preparation cup disclosed in an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the sample distribution plate disclosed in an embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the preparation chamber disclosed in an embodiment of the present invention;

[0054] Figure 7 This is a schematic diagram of the internal structure of the preparation chamber disclosed in an embodiment of the present invention;

[0055] Figure 8 This is a schematic diagram of the air guide cylinder disclosed in an embodiment of the present invention;

[0056] Figure 9 This is a schematic diagram of the positioning pressure plate disclosed in an embodiment of the present invention.

[0057] In the diagram: 100 - Mineral spectral analysis device;

[0058] 1-Casing; 11-Divider; 12-Workspace 1; 13-Workspace 2; 14-Pass-through passageway;

[0059] 2-Sample cup; 21-Upper cup bottom; 22-Lower cup bottom; 23-Sand hole; 24-Sample distribution plate; 25-Through hole; 26-Gear ring;

[0060] 3-Sample sample; 31-Horizontal guide rail; 32-Transfer plate; 33-Positioning plate; 34-Screw; 35-Rotating seat; 36-Support arm; 37-Vibrating rod; 38-End cap; 39-Roller;

[0061] 4-Sample loading mechanism; 41-Preparation chamber; 42-Sand drop trough; 43-Fixing clamp; 44-Frame; 45-Lifting plate; 46-Airflow seat; 47-Air guide plate; 48-Air hole; 49-Air guide cylinder; 410-Air inlet; 411-Spray coating pipe; 412-Adapter; 413-Support roller; 414-Rotating shaft; 415-Eccentric block; 416-Lifting unit; 417-Positioning pressure plate; 418-Carbon tape;

[0062] 5-Transfer mechanism; 51-Guide rail frame; 52-Sliding seat; 53-Bracket; 54-Upper plate; 55-Slide rail; 56-Connecting shaft; 57-Coupling frame; 58-Ultrasonic vibrator; 59-Support plate;

[0063] 6-Spectral detection unit. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] One of the objectives of this invention is to provide a novel mineral spectral analysis device that enables continuous sample preparation and analysis with high sample authenticity and reliability. While improving detection accuracy, it also eliminates component detection bias. Furthermore, the device is portable and can adapt to field or on-site sample preparation and testing needs, thereby solving the problems existing in the prior art.

[0066] Another object of the present invention is to provide a mineral spectral analysis method using the above-described mineral spectral analysis apparatus.

[0067] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0068] like Figure 1 As shown, this embodiment provides a mineral spectral analysis device 100, including a housing 1, a sample preparation unit, a sample transfer unit, and a spectral detection unit 6. The housing 1 has a working space 12 and a working space 13 separated by a partition plate 11, and a through-hole 14 is provided at the bottom or near the bottom of the partition plate 11. The sample preparation unit is located within one of the working spaces 12 and 13, and includes a sample preparation cup 2 and a sample compactor 3. The sample preparation cup 2 is used to hold pre-treated powder of the mineral to be tested (hereinafter referred to as "mineral powder"). The sample compactor 3 is located above the sample preparation cup 2 and is used to compact the mineral powder to disperse it and ensure uniform component distribution. The bottom of the sample preparation cup 2 is also provided with... The system includes a sample ejection mechanism that discharges the vibrated mineral powder. The sample transfer unit comprises a sample carrier 4 and a transfer mechanism 5. The sample carrier 4 receives the mineral powder discharged from the sample ejection mechanism and applies a coating to it to form a powder layer sample. The transfer mechanism 5 transfers the sample carrier 4 between working space 12 and working space 13 via a through-channel 14. A spectral detection unit 6 is located in the other of working spaces 12 and 13 and performs spectral analysis on the coated mineral powder layer, i.e., the powder layer sample, formed on the sample carrier 4. In practical applications, the minerals to be detected include, but are not limited to, tourmaline.

[0069] Some feasible implementation methods, such as Figure 1As shown, the housing 1 is preferably a spatially enclosed box structure, with a vertically arranged partition 11 inside to divide the interior of the housing 1 into a first working space 12 and a second working space 13 arranged to the left and right. The spectral detection unit 6 is located in the first working space 12, while the sample preparation unit is located in the second working space 13. A loading / unloading port is provided above the second working space 13, and a housing cover is provided outside the loading / unloading port to completely seal the loading / unloading port, ensuring the sealing of the second working space 13 after material feeding / unloading. Correspondingly, the first working space 12 can also be equipped with a detachable or openable cover for material feeding / unloading or maintenance and repair of the spectral detection unit 6. Considering that each unit structure inside the housing 1 has electrical components, corresponding power connection ports or charging ports can also be provided on the outer wall of the housing 1 to ensure normal operation of the equipment.

[0070] In some feasible implementations, the spectral detection unit 6 preferably employs a spectrometer. The excitation source (X-ray source) of the spectrometer includes a micro-focusing X-ray tube. The micro-focusing beam is coupled with the ultra-flat powder layer sample (Ra < 0.5 μm), which can eliminate the X-ray incident angle deviation caused by surface undulations, and enable high-precision spectral analysis and detection of flat-prepared strip-shaped mineral powder.

[0071] In some feasible implementations, the tamping component 3 of the sample preparation unit includes a horizontal guide rail 31, a transfer plate 32, a positioning plate 33, a lead screw 34, a rotating seat 35, a support arm 36, and a vibrating rod 37. The horizontal guide rail 31 is set on the partition plate 11, and the transfer plate 32 is slidably mounted on the horizontal guide rail 31. The transfer plate 32 is connected to a drive source, which can be a lead screw equipped with a motor or a drive cylinder to drive the transfer plate 32 to slide along the horizontal guide rail 31. (When the drive source is a lead screw, the lead screw passes through the transfer plate 32 and is threadedly connected to the transfer plate 32. The lead screw is parallel to the horizontal guide rail 31, and driving the lead screw to rotate can drive the transfer plate 32 to slide along the horizontal guide rail 31.) If the guide rail frame 51 is defined to be arranged along the X direction, then the horizontal guide rail 31 is arranged along the Y direction, and the X and Y directions are perpendicular. At the same time, the height (vertical) direction of the housing 1 can be defined as the Z direction, then the X and Y directions are both perpendicular to the Z direction. Furthermore, the lead screw 34 is vertically rotatably connected to the end face of the transfer plate 32 away from the partition plate 11. The lead screw 34 is arranged along the aforementioned Z direction. The positioning plate 33 is vertically slidably connected to the transfer plate 32 via a track. At the same time, the lead screw 34 passes through the vertical direction of the positioning plate 33 and is threadedly connected to the positioning plate 33. A motor is connected to the top of the lead screw 34. When the motor starts and drives the lead screw 34 to rotate, it can drive the positioning plate 33 to be raised and lowered relative to the transfer plate 32 along the Z direction. The rotating seat 35 is fixed to the end face of the positioning plate 33 away from the transfer plate 32. A support arm 36 is rotatably connected to the rotating seat 35. Multiple vertically distributed vibrating rods 37 are equidistantly arranged along the Y-axis on the support arm 36. When the drive source connected to the transfer plate 32 drives the transfer plate 32 to slide along the horizontal guide rail 31, the multiple vibrating rods 37 can achieve horizontal longitudinal (Y-axis) displacement. During the fine-tuning of the sample cup 2 along the slide rail 55, the vibrating rods 37 can generate horizontal lateral (X-axis) displacement relative to the sample cup 2, thus achieving flexible horizontal adjustment of the vibrating rods 37. When the drive arm 36 rotates around the rotating seat 35, the vibrating rods 37 can form an oblique insertion angle with the mineral powder in the sample cup 2, further improving the internal vibration effect of the vibrating rods 37 on the mineral powder. The vibrating rods 37 are mature product components, such as vibrating bars or ultrasonic amplitude transformers, which are generally equipped with vibration motors; details will not be elaborated here. The rotating base 35 can be an existing rotary robotic arm or a motor rotation drive structure. The motor rotation drive structure includes a motor, the motor output shaft is connected to a bracket, and the bracket arm is connected through the bracket. When the motor starts, its output end can drive the bracket to rotate, thereby driving the bracket arm 36 to rotate around the rotating base 35.

[0072] Some feasible implementation methods, such as Figure 2As shown, an end cap 38 is horizontally positioned below the support arm 36, and the end cap 38 can be sealed and assembled with the mouth of the sample cup 2. The end cap 38 has multiple mounting holes, the same number as the number of vibrating rods 37, and each vibrating rod 37 corresponds to one of its mounting holes. Each vibrating rod 37 is fitted with a roller 39, which is rotatably connected to the mounting hole of the end cap 38. The roller 39 can be a universal bearing, such as a ball joint structure. This design not only achieves the assembly connection between the end cap 38 and each vibrating rod 37, but also facilitates the swinging of the vibrating rods 37 relative to the end cap 38, allowing for internal vibration of the mineral powder at different angles. It should be noted that when using the vibratory rod 37, the end cap 38 needs to be moved down under the drive of the lead screw 34 until it reaches the mouth of the sample preparation cup 2 and seals it. At this time, the bottom end of the vibratory rod 37 extends into the sample preparation cup 2. During the vibration process, the end cap 38 can always be sealed with the sample preparation cup 2 to prevent mineral powder leakage. At the same time, because the end cap 38 is positioned by the mouth of the sample preparation cup 2, it remains basically stationary during the vibration process, so that the vibratory rod 37 can swing relative to the end cap 38 to complete multi-angle vibration. After vibration is completed, or when the next batch of mineral powder needs to be vibrated, the motor can be used to drive the lead screw 34 to rotate in the opposite direction to pull the end cap 38 away from the sample preparation cup 2. After the end cap 38 is opened, the sample can be added into the sample preparation cup 2.

[0073] In practical applications, to ensure reliable equipment operation, if the bottom end of the vibrating rod 37 is tilted towards the horizontal guide rail 31 (leftward tilt), the rotating seat 35 drives the support arm 36 to rotate clockwise relative to the rotating seat 35, creating a vibration and shaking effect on the mineral powder. During this process, the sample cup 2 on the guide rail frame 51 should move to the left to ensure that the end cap 38 and the sample cup 2 remain sealed. Conversely, if the bottom end of the vibrating rod 37 is tilted away from the horizontal guide rail 31 (rightward tilt), the sample cup 2 on the guide rail frame 51 should move to the right to ensure that the end cap 38 and the sample cup 2 remain sealed.

[0074] In some preferred embodiments, the end cap 38 includes, but is not limited to, a circular, square, diamond-shaped, or other irregularly shaped cap, the shape of which is adapted to the mouth of the sample cup 2. A sealing ring is provided on the outer periphery of the end cap 38 to ensure a tight seal between the end cap 38 and the mouth of the cup when they are connected.

[0075] In some feasible implementations, the transfer mechanism 5 of the sample transfer unit includes, but is not limited to, components such as a robotic arm and a linear slide rail. Considering that the linear slide rail structure is simpler, more stable in operation, and lower in cost, this embodiment preferably uses a linear slide rail structure for the transfer mechanism 5 to achieve sample transfer. Specifically: as Figure 3As shown, the transfer mechanism 5 includes a guide rail frame 51, a sliding seat 52, a transfer drive, and an upper plate 54. The guide rail frame 51 is disposed along the X direction inside the lower part of the housing 1, passing through the aforementioned through-type channel opening 14 and spanning between the first working space 12 and the second working space 13. The sliding seat 52 is slidably mounted on the guide rail frame 51 and connected to the transfer drive. The transfer drive is used to drive the sliding seat 52 to move along the guide rail frame 51 to realize the transfer of the sample between the first working space 12 and the second working space 13.

[0076] Multiple supports 53 are vertically fixed to the upper surface of the sliding seat 52, and the supports 53 are arranged on both sides along the Y direction. Taking two supports 53 on each side as an example, the two supports 53 on each side are arranged along the X direction, and a support plate 59 is horizontally connected between the two supports 53 on the same side. The upper plate 54 is arranged parallel above the sliding seat 52. The middle of the upper plate 54 has an installation groove adapted to the sample cup 2. The sample cup 2 is detachably fixed in the installation groove, and the mineral powder can be placed in the sample cup 2. The upper plate 54 is set above the support plate 59. The sample carrying mechanism 4 is set between the upper plate 54 and the sliding seat 52. A slide rail 55 is fixed parallel to the upper surface of the sliding seat 52. The slide rail 55 is parallel to the guide rail frame 51. The sample carrying mechanism 4 is slidably connected to the slide rail 55 through a slider, and the sample carrying mechanism 4 is connected to a sample carrying drive, which is used to drive the sample carrying mechanism 4 to move along the slide rail 55. Figure 3 As shown, the bracket 53 is installed at the end of the slide rail 55 away from the partition plate 11. The sample carrying drive is preferably a cylinder or hydraulic cylinder mounted on the sliding seat 52. The cylinder or hydraulic cylinder is connected to the sample carrying mechanism 4 to drive the sample carrying mechanism 4 to move along the slide rail 55 so that the sample carrying mechanism 4 moves directly below the sample cup 2 or away from the sample cup 2.

[0077] In practical applications, the aforementioned transfer drive can be a pneumatic or hydraulic cylinder. The pneumatic or hydraulic cylinder is assembled inside the housing 1, with one end connected to the end of the guide rail 51 and the other end connected to the sliding seat 52. Driving the pneumatic or hydraulic cylinder to extend or retract allows the sliding seat 52 to move along the guide rail 51. The sample cup 2 and the sliding seat 52 always move synchronously relative to the guide rail 51. In other feasible solutions, besides pneumatic and hydraulic cylinders, the transfer drive can also be a lead screw drive. That is, a lead screw and a lead screw motor are also configured between the sliding seat 52 and the guide rail 51. The lead screw is parallel to the guide rail 51 and rotatably mounted on the guide rail 51. At the same time, the lead screw passes through the sliding seat 52 and is threadedly engaged with the sliding seat 52. In this case, the lead screw, the sliding seat 52, and the guide rail 51 constitute an electric slide assembly. Starting the lead screw motor can drive the sliding seat 52 to move along the guide rail 51.

[0078] In some feasible implementations, an airtight door is preferably installed at the through-type channel opening 14. When the airtight door is sealed with the channel opening, the sample preparation unit and the sample transfer unit are located in one working space, while the spectral detection unit 6 is located in another working space, achieving independent sealing of the two working spaces. Opening the airtight door allows for the transfer of the sample carrier 4. The airtight door can adopt a sliding curtain structure, with a metal counterweight rod installed at the bottom of the curtain to ensure it hangs vertically. Side sealing brushes or flanges that cooperate with the guide rails are provided on both sides of the curtain to reduce side gaps. Existing products are used for the airtight door, and details will not be elaborated here.

[0079] In some feasible embodiments, the sample dispensing mechanism at the bottom of the sample preparation cup 2 includes a sand hole 23 formed at the bottom of the sample preparation cup 2 and a sample dispensing disk 24 rotatably mounted on the inner wall of the bottom of the cup body. The surface of the sample dispensing disk 24 is distributed with multiple sets of through holes 25. For example Figures 3-5 As shown, the sample preparation cup 2 has a double-layered bottom arranged vertically. Taking a cylindrical cup with a circular cross-section as an example, multiple sand holes 23 are opened on each layer of the bottom. These sand holes 23 are linearly distributed along the radial direction of the sample preparation cup 2. The diameter and distribution of the sand holes 23 on both layers of the bottom are the same, and the opening areas of the two layers of the bottom are aligned vertically. The sample distribution plate 24 is rotatably installed between the double-layered bottoms. Specifically, preferably, the sample distribution plate 24 is placed directly between the upper and lower layers of the bottom, and the upper and lower surfaces of the sample distribution plate 24 are respectively fitted with the upper and lower layers of the bottom. The outer circumferential wall of the sample preparation cup 2 can limit the circumference of the sample distribution plate 24, ensuring that the sample distribution plate 24 only rotates in its original position. Figure 5As shown in the figure, two sets of through holes 25 are provided on the sample dividing plate 24. Any one set of through holes 25 includes two through hole regions arranged along a single radial direction and symmetrically centered on the center of the sample dividing plate 24. The through hole regions of the two sets of through holes 25 are arranged vertically, that is, the four through hole regions are evenly distributed at intervals of 90° in the circumferential direction, and the two through hole regions of the same set are aligned in a "one" character arrangement. Among them, the apertures of the through holes in the same set are the same, and the aperture of one set of through holes 25 is larger than the aperture of the other set of through holes 25. A gear ring 26 is provided on the outer circle of the sample dividing plate 24. At the same time, a notch for exposing the gear ring 26 is provided on the lower side wall below the upper cup bottom 21 of the sample making cup 2. A sample dividing motor is provided below the upper plate 54 near the notch. The output end of the sample dividing motor is coaxially connected with a driving gear. The driving gear meshes with the gear ring 26 at the notch position. Starting the sample dividing motor can drive the driving gear to rotate. The driving gear rotates and drives the sample dividing plate 24 to rotate in place, so that a certain set of through holes 25 on the sample dividing plate 24 is aligned with the sand hole 23 opening regions of the upper and lower cup bottoms (at this time, the sand holes 23 and the through holes 25 on the upper and lower cup bottoms are aligned one by one up and down), realizing sample output. By rotating and adjusting the sample dividing plate 24, different aperture-sized through holes 25 can be switched to be aligned with the sand holes 23, so as to adjust the particle size of the ore powder sample output. Based on the division of different particle sizes of the ore powder, samples of each different particle size of the ore powder can be made and spectroscopically analyzed. On the one hand, it ensures the flatness of the overall sample during each sample making, improves the spectroscopic analysis accuracy, and avoids uneven light paths caused by the mixing of large particles and fine powders. On the other hand, appropriate spectroscopic analysis methods can be adopted according to the powder layers formed by the spreading of ore powders with different particle sizes, with stronger flexibility and higher detection and analysis accuracy.

[0080] In practical applications, in addition to the above scheme where the two sets of through holes 25 are arranged vertically and crosswise, three or more sets of through holes can also be provided. For example, the three sets of through holes 25 are arranged in a "cross" shape. The apertures of the three sets of through holes 25 are different. Compared with the design of the two sets of through holes 25, the three sets of through holes 35 can further refine the particle size grades of the ore powder sample output and realize the preparation and detection of more specifications of samples.

[0081] As a preferred embodiment, in this embodiment, the upper plate 54 is connected above the support plate 59 through a vibration adding mechanism. The vibration adding mechanism includes a connecting shaft 56, a connecting shaft frame 57 and an ultrasonic vibrator 58, as Figure 3 and Figure 4As shown, each support plate 59 has two symmetrically vertically arranged connecting shafts 56. The lower end of each connecting shaft 56 passes through the support plate 59 and slides with the support plate 59 with a clearance, so that a relative sliding allowance is reserved between each connecting shaft 56 and the support plate 59. The upper end of each connecting shaft 56 is fixed with a coupling bracket 57, and the top of each coupling bracket 57 is rotatably connected to the four corners of the upper plate 54 respectively. A support spring is sleeved on the connecting shaft 56, and the support spring supports the coupling bracket 57 between the coupling bracket 57 and the support plate 59 to elastically support the coupling bracket 57. An ultrasonic vibrator 58 is vertically fixed on one side of each connecting shaft 56 on the support plate 59. The output end of the ultrasonic vibrator 58 is fixed to the connecting shaft 56 or the coupling bracket 57. The connecting shaft 56 and the coupling bracket 57 are fixed as one piece. Under the drive of the ultrasonic vibrator 58, the two can synchronously generate sliding displacement relative to the support plate 59 to realize the shaking and tamping of the upper plate 54.

[0082] The crushed mineral powder inevitably contains sand particles of different sizes. Therefore, by rotating and adjusting the sample distribution plate 24, a set of through holes 25 are aligned with the sand holes 23, thereby selecting a suitable range of mineral powder particle sizes for feeding. Specifically, to ensure the flatness of the mineral powder sample, the smallest through hole 25 is preferentially aligned with the sand hole 23. At this time, the mineral powder can fall freely under the action of gravity and at least one of the vibration mechanism and the vibrating rod 37, and enter the sample carrying mechanism 4 below. During the feeding process, at least one of the vibration mechanism and the vibrating rod 37 is activated to achieve vibration feeding, avoid clogging of the sand holes 23, and accelerate particle size screening. Meanwhile, each ultrasonic vibrator 58 on the support plate 59 can be activated sequentially in a clockwise direction, with the excitation frequency synchronized with the material feeding cycle (e.g., 0.5Hz-2Hz). The excitation waveforms of adjacent ultrasonic vibrators 58 are superimposed to form a traveling wave field (non-standing wave), causing the mineral powder layer to migrate in a directional manner (migration speed ≥8 mm / s). Compared with the synchronous activation of each ultrasonic vibrator 58 (synchronous activation generally has low material feeding efficiency and may cause clogging during the initial material feeding), activating each ultrasonic vibrator 58 in a specific order can further shake out the clogging mineral powder, ensuring uniform and smooth subsequent material feeding.

[0083] As a preferred implementation method, such as Figure 6 and Figure 7As shown, the sample carrier 4 includes a preparation chamber 41, a fixing clamp 43, a frame 44, an airflow seat 46, and an air guide cylinder 49. A straight sand-falling trough 42 along the Y direction is provided on the upper surface of the preparation chamber 41. When the preparation chamber 41 is located below the sample cup 2, the sand hole 23 area at the bottom of the sample cup 2 can be aligned vertically with the sand-falling trough 42, so that the mineral powder passing through the sand hole 23 can fall straight into the preparation chamber 41. As a preferred embodiment, to avoid waste of mineral powder, the length of the sand-falling trough 42 is not shorter than the length of the sand hole 23 area, and the width of the sand-falling trough 42 is not less than the width of the sand hole 23 area. Two fixing clamps 43 are provided and symmetrically distributed in the preparation chamber 41. A carbon tape 418 parallel to the Y direction is connected between the fixing clamps 43. The carbon tape 418 has high adhesion and can adhere and collect the mineral powder falling into the sand-falling trough 42, forming a powder layer on its surface. The frame 44 is arranged parallel to the X-axis. Both ends of the frame 44 are slidably mounted in the preparation chamber 41 via guide bars. The frame 44 is perpendicular to the carbon tape 418. A support plate 45 is fixed to the lower end of the frame 44. The carbon tape 418 is located between the two support plates 45. A support roller 413 with a central convex center and pointed ends is rotatably connected between the two support plates 45 in the X-axis direction. The carbon tape 418 is located above the support roller 413 and adheres to its surface. The support roller 413 and the carbon tape 418 roll in cooperation, providing a certain lifting and support effect. An airflow seat 46 is embedded and fixed within the frame 44. An air guide plate 47 is mounted on the lower end of the airflow seat 46, and several air holes 48 are distributed on the lower end of the air guide plate 47. The air guide plate 47 is located directly above the carbon tape 418. The air guide cylinder 49 is horizontally mounted on the frame 44 and one end of it is connected to the airflow seat 46. An airflow channel is provided inside the air guide cylinder 49, and the other end of the air guide cylinder 49 is provided with an air inlet 410 for connecting to a high-pressure air source (such as a compressor). In other words, the high-pressure gas delivered in the air inlet 410 can enter the airflow seat 46 through the airflow channel and be ejected through the air holes 48 on the air guide plate 47 below the airflow seat 46, thereby blowing away excess mineral powder on the surface of the carbon tape 418 and ensuring that a uniform and flat single-layer powder coating is formed on the upper surface of the carbon tape 418.

[0084] In some feasible implementations, the lower surface of the air guide plate 47 is configured with a concave arc-shaped structure, with each air hole 48 perpendicularly facing the surface of the carbon tape 418. When the frame 44 slides along the length of the carbon tape 418, it can provide bottom support to the carbon tape 418 via the support roller 413. After the carbon tape 418 spreads along the surface of the support roller 413, it forms a convex arc-shaped surface. At this time, each air hole 48 of the air guide plate 47 can blow air perpendicularly to the surface of the carbon tape 418, further ensuring that no mineral powder residue appears on the surface of the carbon tape 418, thus ensuring the smoothness of the powder layer. The air guide plate 47 may have only one exhaust hole 48, or two to three exhaust holes 48 may be arranged side-by-side along the length of the carbon tape 418.

[0085] In some feasible embodiments, the support roller 413 includes a roller body with a central convex shape and pointed ends, and a rotating shaft 414 rotatably mounted inside the roller body. The cross-section of the roller body along the axial direction of the support roller 413 is elliptical. The two ends of the rotating shaft 414 are rotatably mounted on two lifting plates 45 via bearings. At the same time, the two ends of the roller body are rotatably connected to the two lifting plates 45 via bearings to ensure that the roller body and the carbon belt 418 are in rolling contact. An eccentric block 415 is fixed on the rotating shaft 414. The rotating shaft 414 can rotate under the drive of an external motor, thereby using the eccentric block 415 to generate centrifugal vibration so that the roller body of the support roller 413 can create a vibration shaking effect on the carbon belt 418.

[0086] In some feasible implementations, a spraying pipe 411 is fixed in the airflow channel of the air guide cylinder 49, and one end of the spraying pipe 411 is connected to an adapter 412 for connecting to the nano-carbon film supply device. A detection section screening device (not shown in the figure) can be installed on the frame 44. The detection section screening device includes an image acquisition device and a data processor communicatively connected to the image acquisition device. The image acquisition device can specifically be a vision sensor (or industrial camera). After the residual mineral powder on the surface of the carbon tape 418 is completely dispersed, the vision sensor (or industrial camera) can be used to acquire a surface image of the carbon tape 418, capturing a topological image of the carbon tape 418 surface. The data processor can identify the complete area of ​​the powder layer through an edge detection algorithm (Sobel operator) and select the carbon... The relatively complete powder layer spread on the surface of the tape 418 serves as the detection section. The spraying pipe 411 can perform nano-carbon film spraying on the selected detection section (at this time, the carbon tape 418 is still spread in a curved surface by the support roller 413). In this way, the nano-carbon film is deposited (film thickness 20±2nm) while the carbon tape 418 maintains a constant curvature (R is approximately equal to 150mm). The surface tension increases the carbon film-powder bonding strength to 3 times that of the planar substrate (reaching 18MPa). The nano-carbon film and the mineral powder on the surface of the carbon tape 418 are fully combined to form a relatively flat coating structure. The detection section screening device detects the detection section during the movement of the frame 44. If a qualified detection section is detected, the spraying pipe 411 is started to spray the nano-carbon film. If a local defect in the powder layer is detected, the spraying pipe 411 stops spraying. After a qualified detection section is detected again, the spraying pipe 411 is started again to spray. This cycle is repeated to complete the purging, detection and spraying of the entire carbon tape 418. The opening and closing device of the spraying pipe 411 can be connected to the screening device of the detection section through the controller, so that the spraying pipe 411 can be automatically opened and closed in real time according to the image recognition results.

[0087] like Figure 9As shown, a lifting unit 416 is also fixed on the frame 44. A positioning pressure plate 417 is vertically connected below the lifting unit 416. The positioning pressure plate 417 is located behind the support roller 413 and can provide auxiliary pressure of 5MPa-15MPa on the inspection section after purging and coating. After pressing, a secondary visual scan can be performed to provide real-time feedback on the integrity of the coating and mark the unqualified areas. The lifting unit 416 includes, but is not limited to, vertically arranged lifting cylinders or lifting hydraulic cylinders.

[0088] In some feasible embodiments, the sample carrier 4 is also equipped with a frame drive (not shown in the figure). The frame drive can be a cylinder or hydraulic cylinder arranged along the Y direction, which is connected to the frame 44 to drive the frame 44 to move along the length of the carbon tape 418. The carbon tape 418 is completely exposed in the sand drop trough 42. During the movement of the frame 44 along the carbon tape 418 by the telescopic movement of the cylinder or hydraulic cylinder, the blowing and spraying of all the powder layer on the carbon tape 418 are continuously completed until the surface of the carbon tape is completely covered with mineral powder and sprayed with a nano carbon film. Afterward, the frame 44 moves to one end of the carbon tape 418 to avoid affecting the full exposure of the carbon tape 418 in the sand drop trough 42.

[0089] Then, using a cylinder or hydraulic cylinder connected to the sample-carrying mechanism 4, the sample-carrying mechanism 4, which contains the coated mineral powder layer, is moved to the end of the slide rail 55 away from the sample cup 2. Then, the sliding seat 52 is driven to move along the guide rail frame 51, moving the sample-carrying mechanism 4 to the working space 12. A spectrometer is then used to detect and analyze the powder layer sample exposed on the carbon tape 418 in the sand dropper 42. During the detection process, the carbon tape 418 remains stationary. After a certain detection segment is completed, the spectrometer can be moved to detect the next segment until all detection segments on the carbon tape 418 have been detected. Alternatively, the fixed clamp 43 can be replaced with a conveyor belt or other conveyor mechanism. During the detection process, the spectrometer position remains fixed. After a detection segment on the carbon tape 418 is completed, the next detection segment can be transferred via the conveyor mechanism to the area below the spectrometer for detection until all detection segments on the carbon tape 418 have been detected.

[0090] The working principle of the mineral spectral analysis device 100 described above in this embodiment will be explained in detail below, taking the analysis and detection of tourmaline minerals as an example:

[0091] The tourmaline mineral powder to be tested, formed by crushing, can be placed in the sample preparation cup 2. The sample preparation cup 2 can be used to evenly disperse the mineral powder by multiple ultrasonic vibrators 58. The vibrating rod 37 located in the working space 13 can further assist in vibrating the mineral powder in the sample preparation cup 2. In practical applications, only one of the vibrating rod 37 and ultrasonic vibrator 58 can be used.

[0092] After being vibrated, the mineral powder can fall vertically into the carbon tape 418 through the sand hole 23 below the sample cup 2, so as to form a powder layer on the surface of the carbon tape 418, which facilitates continuous sample preparation and testing.

[0093] The frame 44 in the drive preparation chamber 41 slides along the length of the carbon tape 418. During this sliding process, the airflow from the airflow seat 46 blows away excess mineral powder on the surface of the carbon tape 418. After comparison, several suitable detection sections are selected. The nano-carbon film is sprayed with the assistance of the spraying pipe 411 in the air guide cylinder 49. The powder layer after coating is uniformly pressed and shaped by the positioning pressure plate 417.

[0094] Finally, the airtight door is opened, and the entire sample carrier 4 is moved into the working space 12 via the guide rail frame 51. The spectrometer then performs spectral analysis on each detection segment of the carbon tape 418 surface in sequence, thereby realizing the detection of tourmaline mineral composition.

[0095] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0096] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A mineral spectral analysis device, characterized by, The utility model relates to a kind of mineral powder sample preparation and detection device, including: Cabinet (1), the cabinet (1) inside is provided with work space one (12) and work space two (13) by partition (11) interval, and the bottom of the partition (11) or the position close to itself bottom is provided with through type passageway (14); Sample preparation unit, the sample preparation unit is arranged in one of the work space one (12) and the work space two (13), it includes sample preparation cup (2) and sample preparation piece (3), the sample preparation cup (2) is used to place the ore powder to be detected, the sample preparation piece (3) is located above the sample preparation cup (2), for ore powder is vibrated, to make ore powder be scattered and composition distribution uniform;The bottom of the sample preparation cup (2) is further provided with sample ejection mechanism, and the sample ejection mechanism can discharge the ore powder of vibration completion;The sample preparation piece (3) includes horizontal guide rail (31), shift plate (32), positioning plate (33), lead screw (34), rotating seat (35), support arm (36) and vibrating rod (37), wherein: the horizontal guide rail (31) is arranged on the partition (11), and the horizontal guide rail (31) is slidably installed the shift plate (32);The shift plate (32) is connected with driving source, to drive the shift plate (32) along the horizontal guide rail (31) sliding;The lead screw (34) is vertically rotatably connected at the side end face of the shift plate (32) away from the partition (11), and the lead screw (34) is perpendicular to the horizontal guide rail (31);The positioning plate (33) is slidably connected on the shift plate (32), and the lead screw (34) penetrates the positioning plate (33) vertically and is threadedly connected with the positioning plate (33), and the top of the lead screw (34) is connected with motor, to drive the positioning plate (33) to adjust relative to the shift plate (32) lifting;The rotating seat (35) is fixed at the side end face of the positioning plate (33) away from the shift plate (32), and the rotating seat (35) is rotatably connected with the support arm (36) on it;The vibrating rod (37) is arranged on the support arm (36), and the vibrating rod (37) is used to extend into the sample preparation cup (2), to internally vibrate ore powder;At least one of the rotating seat (35) and the shift plate (32) can adjust the oblique insertion angle of the vibrating rod (37) relative to the sample preparation cup (2) during vibration; Sample transfer unit, including sample loading mechanism (4) and transfer mechanism (5), the sample loading mechanism (4) can receive the ore powder discharged by the sample ejection mechanism, and the sample loading mechanism (4) is formed by spraying the ore powder layer sample, and the transfer mechanism (5) can transfer the sample loading mechanism (4) through the through type passageway (14) between the work space one (12) and the work space two (13); Spectrum detection unit (6) is arranged in the other one of the work space one (12) and the work space two (13), and the spectrum detection unit (6) can carry out spectrum analysis detection to the powder layer sample on the sample loading mechanism (4).

2. The mineral spectrography device according to claim 1, characterized in that, The sample ramming member (3) further comprises an end cover (38) capable of sealingly fitting with the cup mouth of the sample preparation cup (2); the end cover (38) is provided with a mounting hole, the vibrating rod (37) penetrates through the mounting hole and is rotationally fitted with the mounting hole through a roller (39).

3. The mineral spectrography apparatus according to claim 1 or 2, characterized in that, The through-type passage mouth (14) is further provided with a closable air-tight door.

4. The mineral spectrography apparatus according to claim 1 or 2, characterized in that, The transfer mechanism (5) comprises a guide rail frame (51), a sliding seat (52), a transfer drive and an upper layer plate (54), wherein: the guide rail frame (51) is arranged below the inside of the machine shell (1) and is perpendicular to the horizontal guide rail (31) and the lead screw (34); the guide rail frame (51) penetrates through the through-type passage mouth (14) and spans between the working space one (12) and the working space two (13); The sliding seat (52) is slidingly installed on the guide rail frame (51) and is connected with the transfer drive, and the transfer drive is used to drive the sliding seat (52) to move along the guide rail frame (51) so as to drive the sample carrying mechanism (4) to transfer between the working space one (12) and the working space two (13); The upper end surface of the sliding seat (52) is vertically fixed with a plurality of supports (53), and the plurality of supports (53) are arranged on two sides, and the supports (53) on the same side are horizontally connected with a support plate (59); The upper layer plate (54) is arranged above the sliding seat (52) in parallel, and the middle part of the upper layer plate (54) is provided with a mounting groove, and the sample preparation cup (2) is detachably fixed in the mounting groove; The sample carrying mechanism (4) is arranged between the upper layer plate (54) and the sliding seat (52), the upper end surface of the sliding seat (52) is fixed in parallel with a sliding rail (55), and the sliding rail (55) is parallel to the guide rail frame (51), and the sample carrying mechanism (4) is slidingly connected with the sliding rail (55); the sample carrying mechanism (4) is connected with a sample carrying drive, and the sample carrying drive is used to drive the sample carrying mechanism (4) to move along the sliding rail (55).

5. The mineral matter spectroscopic analysis apparatus of claim 4, wherein, The sample discharging mechanism comprises a sample distributing disc (24) and sand holes (23) provided in the bottom of the sample preparation cup (2), and the bottom of the cup body of the sample preparation cup (2) is provided with double-layer cup bottoms arranged in an up-down manner, a plurality of sand holes (23) are provided on any one of the cup bottoms, and the sand holes (23) are distributed in a straight line along the radial direction of the sample preparation cup (2); The sample distributing disc (24) is rotationally installed between the double-layer cup bottoms, two groups of through holes (25) are provided on the sample distributing disc (24), any one group of the through holes (25) comprises two through hole areas arranged along a single radial direction of the sample distributing disc (24) and symmetrically centered on the center of the sample distributing disc (24), the through hole areas of the two groups of through holes (25) are vertically distributed, and the hole diameter of one group of the through holes (25) is greater than that of the other group of the through holes (25); The outer ring of the sample dividing disc (24) is provided with a gear ring (26), an opening is formed in the sidewall between the two layers of the sample cup (2) to expose the gear ring (26), a sample dividing motor is arranged below the upper layer plate (54) near the opening, the output end of the sample dividing motor is coaxially connected with a driving gear, the driving gear is engaged with the gear ring (26) at the opening position to drive the sample dividing disc (24) to rotate and switch different groups of the through holes (25) to be aligned with the sand holes (23).

6. The mineral matter spectrography apparatus of claim 4, wherein, The upper layer plate (54) is connected above the support plate (59) through a vibration adding mechanism, the vibration adding mechanism comprises a connecting shaft (56), a connecting shaft bracket (57) and an ultrasonic vibrator (58), two connecting shafts (56) are vertically arranged on each support plate (59), the upper end of the connecting shaft (56) is fixed with the connecting shaft bracket (57), and the top end of each connecting shaft bracket (57) is rotatably connected with the corresponding position of the four corners of the upper layer plate (54); the connecting shaft (56) is sleeved with a supporting spring; The ultrasonic vibrator (58) is vertically fixed on one side of each connecting shaft (56) on the support plate (59), the output end of the ultrasonic vibrator (58) is fixed with the connecting shaft (56), and the mineral powder in the sample cup (2) can be vibrated.

7. The mineral matter spectroscopic analysis apparatus of claim 6, wherein, The sample loading mechanism (4) comprises a preparation bin (41), a fixed clamping plate (43), a rack (44), an airflow seat (46), an air guide cylinder (49) and a spraying pipe (411), wherein: the preparation bin (41) is provided with a sand dropping groove (42) on the upper end face, two fixed clamping plates (43) are arranged in the preparation bin (41) and symmetrically distributed, a carbon adhesive tape (418) parallel to the horizontal guide rail (31) is connected between the two fixed clamping plates (43), the carbon adhesive tape (418) is located directly below the sand dropping groove (42), can adhere and collect the mineral powder falling in the sand dropping groove (42), and forms a powder layer on the surface of the carbon adhesive tape (418); The rack (44) is vertically arranged above the carbon adhesive tape (418), and the two ends of the rack (44) are slidingly installed in the preparation bin (41); the lower end face of the rack (44) is fixed with a lifting plate (45), the carbon adhesive tape (418) is located between the two lifting plates (45), a support roller (413) with a middle convex part and two sharp ends is rotatably connected between the two lifting plates (45), the support roller (413) is located below the carbon adhesive tape (418) and can support the carbon adhesive tape (418) and roll with the carbon adhesive tape (418); the rack (44) is connected with a rack drive, and the rack drive can drive the rack (44) to move along the length direction of the carbon adhesive tape (418). The air flow seat (46) is embedded and fixed in the rack (44), the lower end surface of the air flow seat (46) is provided with a gas guide disc (47), the lower end surface of the gas guide disc (47) is distributed with a plurality of air holes (48), the gas guide cylinder (49) is horizontally arranged on the rack (44), and one end of the gas guide cylinder (49) is communicated with the air flow seat (46), the gas guide cylinder (49) is provided with an air inlet (410) at the other end, and the gas guide cylinder (49) can convey air flow to the air flow seat (46) through the air flow channel, so that the air flow is sprayed downward through the air holes (48), and the excess mineral powder on the surface of the carbon adhesive tape (418) is blown off. The spraying pipe (411) is arranged in the air flow channel, one end of the spraying pipe (411) is connected with an adapter (412), and the spraying pipe (411) can spray a nano-carbon film on the powder layer on the carbon adhesive tape (418) after blowing, so as to form the powder layer sample.

8. The mineral matter spectroscopic analysis apparatus of claim 7, wherein, The sample loading mechanism (4) further comprises a lifting unit (416) and a positioning pressure plate (417), the lifting unit (416) is fixed on the rack (44), the positioning pressure plate (417) is vertically connected below the lifting unit (416), the positioning pressure plate (417) is located behind the supporting roller (413), and the positioning pressure plate (417) can press the powder layer sample after blowing and film coating.

9. A method for analyzing a mineral spectrum using the mineral spectrum analyzing apparatus according to claim 8, characterized by, The rack (44) is further provided with a detection section screening device, and the mineral spectrum analysis method comprises: Placing the mineral powder to be detected in the sample preparation cup (2), and vibrating the mineral powder in the sample preparation cup (2) through at least one of the ultrasonic vibrator (58) and the vibrating rod (37); The mineral powder falling into the shakeout chute (42) is adhered and collected by the carbon adhesive tape (418) to form a powder layer on the surface of the carbon adhesive tape (418); Driving the rack (44) to slide along the length direction of the carbon adhesive tape (418) to blow off the excess mineral powder on the surface of the carbon adhesive tape (418) during sliding, and simultaneously, the detection section screening device is used to detect the integrity of the powder layer after blowing, if the powder layer is detected to be completely spread on the surface of the carbon adhesive tape (418), it is selected as a detection section, and the powder layer of the detection section is sprayed with a nano-carbon film and pressed to form the powder layer sample; After all the detection sections are screened out by the carbon adhesive tape (418), the whole sample loading mechanism (4) is moved to the working space of the spectrum detection unit (6) through the guide rail frame (51), and each detection section on the surface of the carbon adhesive tape (418) is sequentially spectrum analyzed by the spectrum detection unit (6).

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